Merge branch 'master' into master

.github/ISSUE_TEMPLATE/bug_report.md

@@ -2,7 +2,7 @@
 name: Bug report
 about: Create a report to help fix an issue.
 title: ''
-labels: ''
+labels: bug
 assignees: ''
 
 ---
@@ -15,6 +15,10 @@ assignees: ''
 
 **Steps to reproduce**: *How you happened across the issue, and what you were doing at the time.*
 
+**Link to mod(s) used, if applicable**: *The mod repositories or zip files that are related to the issue.*
+
+**Crash report, if applicable**: *The contents of relevant crash report files.*
+
 ---
 
 *Place an X (no spaces) between the brackets to confirm that you have read the line below.*  

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,8 @@
+blank_issues_enabled: false
+contact_links:
+  - name: Feature request
+    url: https://github.com/Anuken/Mindustry-Suggestions/issues/new/choose
+    about: Do not make a new issue for feature requests! Instead, post it in suggestions repository.
+  - name: Question
+    url: https://discord.com/invite/mindustry
+    about: Questions about the game should be asked in the Discord, not in the issue tracker. 

.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,11 +0,0 @@
----
-name: Feature request
-about: Do not make a new issue for feature requests! Instead, post in the suggestions
-  repository. See the README.
-title: ''
-labels: invalid
-assignees: ''
-
----
-
-**Do not make a new issue for feature requests!** Instead, post it in suggestions repository: https://github.com/Anuken/Mindustry-Suggestions/issues/new/choose

.github/workflows/gradle.yml

@@ -3,15 +3,26 @@ name: Java CI
 on: [push]
 
 jobs:
-  build:
-
+  buildJava8:
     runs-on: ubuntu-latest
 
     steps:
     - uses: actions/checkout@v1
-    - name: Set up JDK 1.8
+    - name: Set up JDK 8
       uses: actions/setup-java@v1
       with:
-        java-version: 1.8
-    #- name: Run unit tests with gradle
-    #  run: ./gradlew test
+        java-version: 8
+    - name: Run unit tests with gradle and Java 8
+      run: ./gradlew test
+      
+  buildJava14:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: Set up JDK 14
+      uses: actions/setup-java@v1
+      with:
+        java-version: 14
+    - name: Run unit tests with gradle and Java 14
+      run: ./gradlew test

.gitignore

@@ -10,6 +10,7 @@ logs/
 /desktop/mindustry-saves/
 /desktop/mindustry-maps/
 /desktop/gifexport/
+/gifs/
 /core/lib/
 /ios/assets/
 /core/assets-raw/sprites/generated/
@@ -18,6 +19,7 @@ logs/
 /annotations/out/
 /net/build/
 /tools/build/
+/core/build/
 /tests/build/
 /server/build/
 changelog
@@ -27,7 +29,6 @@ core/assets/saves/
 /core/assets/saves/
 steam_appid.txt
 /test_files/
-/annotations/build/
 /android/assets/mindustry-maps/
 /android/assets/mindustry-saves/
 /core/assets/gifexport/
@@ -39,11 +40,9 @@ steam_appid.txt
 ios/robovm.properties
 packr-out/
 config/
-changelog
 *.gif
-/core/assets/saves/
-/out/
 
+/core/assets/basepartnames
 version.properties
 
 .attach_*

.travis.yml

@@ -1,10 +1,10 @@
 jdk:
 - openjdk8
-dist: trusty
+dist: xenial
 android:
   components:
   - android-29
-  - build-tools-29.0.2
+  - build-tools-29.0.3
 
 script:
 - git clone --depth=1 --branch=master https://github.com/Anuken/MindustryBuilds ../MindustryBuilds
@@ -20,6 +20,12 @@ script:
 - "./gradlew test"
 - "./gradlew desktop:dist -Pbuildversion=${TRAVIS_TAG:1}"
 - "./gradlew server:dist -Pbuildversion=${TRAVIS_TAG:1}"
+- "./gradlew core:javadoc"
+- cd ../
+- git clone --depth=1 https://github.com/MindustryGame/docs.git
+- cp -a Mindustry/core/build/docs/javadoc/. docs/
+- cd docs
+- if [ "$TRAVIS_PULL_REQUEST" = "false" ]; then git add .; git commit -m "Update ${TRAVIS_BUILD_NUMBER}"; git push https://Anuken:${GH_PUSH_TOKEN}@github.com/MindustryGame/docs; fi
 deploy:
 - provider: releases
   skip_cleanup: true

CONTRIBUTING.md

@@ -26,11 +26,12 @@ This means:
 - 4 spaces indentation
 - `camelCase`, **even for constants or enums**. Why? Because `SCREAMING_CASE` is ugly, annoying to type and does not achieve anything useful. Constants are *less* dangerous than variables, not more.
 - No underscores for anything. (Yes, I know `Bindings` violates this principle, but that's for legacy reasons and really should be cleaned up some day)
+- Do not use braceless `if/else` statements. `if(x) statement else statement2` should **never** be done. In very specific situations, having braceless if-statements on one line is allowed: `if(cond) return;` would be valid.
 
 Import [this style file](.github/Mindustry-CodeStyle-IJ.xml) into IntelliJ to get correct formatting when developing Mindustry.
 
 #### Do not use incompatible Java features (java.util.function, java.awt).
-Android [does not support](https://developer.android.com/studio/write/java8-support#supported_features) many of Java 8's features, such as the packages `java.util.function`, `java.util.stream` or `forEach` in collections. Do not use these in your code.  
+Android and RoboVM (iOS) do not support many of Java 8's features, such as the packages `java.util.function`, `java.util.stream` or `forEach` in collections. Do not use these in your code.  
 If you need to use functional interfaces, use the ones in `arc.func`, which are more or less the same with different naming schemes.
   
 The same applies to any class *outside* of the standard `java.[n]io` / `java.net` / `java.util` packages: Most of them are not supported.  

README.md

@@ -6,7 +6,8 @@
 A sandbox tower defense game written in Java.
 
 _[Trello Board](https://trello.com/b/aE2tcUwF/mindustry-40-plans)_  
-_[Wiki](https://mindustrygame.github.io/wiki)_ 
+_[Wiki](https://mindustrygame.github.io/wiki)_  
+_[Javadoc](https://mindustrygame.github.io/docs/)_ 
 
 ### Contributing
 

android/AndroidManifest.xml

@@ -17,7 +17,7 @@
             android:usesCleartextTraffic="true"
             android:appCategory="game"
             android:label="@string/app_name"
-            android:theme="@style/GdxTheme" android:fullBackupContent="@xml/backup_rules">
+            android:theme="@style/ArcTheme" android:fullBackupContent="@xml/backup_rules">
         <meta-data android:name="android.max_aspect" android:value="2.1"/>
         <activity
                 android:name="mindustry.android.AndroidLauncher"

android/build.gradle

@@ -8,6 +8,8 @@ buildscript{
     }
 
     dependencies{
+        //IMPORTANT NOTICE: any version of the plugin after 3.4.1 will break builds for every API level < 24, perhaps even higher.
+        //it appears abstract methods don't get desugared properly (if at all)
         classpath 'com.android.tools.build:gradle:3.4.1'
     }
 }
@@ -19,9 +21,7 @@ configurations{ natives }
 repositories{
     mavenCentral()
     jcenter()
-    maven{
-        url "https://maven.google.com"
-    }
+    maven{ url "https://maven.google.com" }
 }
 
 dependencies{
@@ -29,16 +29,10 @@ dependencies{
 
     implementation arcModule("backends:backend-android")
     implementation 'com.jakewharton.android.repackaged:dalvik-dx:9.0.0_r3'
-    natives "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-armeabi"
-    natives "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-armeabi-v7a"
-    natives "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-arm64-v8a"
-    natives "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-x86"
-    natives "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-x86_64"
-    natives "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-armeabi"
-    natives "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-armeabi-v7a"
-    natives "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-arm64-v8a"
-    natives "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-x86"
-    natives "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-x86_64"
+
+    natives "com.github.Anuken.Arc:natives-android:${getArcHash()}"
+    natives "com.github.Anuken.Arc:natives-freetype-android:${getArcHash()}"
+    natives "com.github.Anuken.Arc:natives-box2d-android:${getArcHash()}"
 }
 
 task deploy(type: Copy){
@@ -50,7 +44,7 @@ task deploy(type: Copy){
 }
 
 android{
-    buildToolsVersion '29.0.2'
+    buildToolsVersion '29.0.3'
     compileSdkVersion 29
     sourceSets{
         main{
@@ -119,25 +113,11 @@ android{
 // the natives configuration, and extracts them to the proper libs/ folders
 // so they get packed with the APK.
 task copyAndroidNatives(){
-    file("libs/armeabi/").mkdirs()
-    file("libs/armeabi-v7a/").mkdirs()
-    file("libs/arm64-v8a/").mkdirs()
-    file("libs/x86_64/").mkdirs()
-    file("libs/x86/").mkdirs()
-
     configurations.natives.files.each{ jar ->
-        def outputDir = null
-        if(jar.name.endsWith("natives-arm64-v8a.jar")) outputDir = file("libs/arm64-v8a")
-        if(jar.name.endsWith("natives-armeabi-v7a.jar")) outputDir = file("libs/armeabi-v7a")
-        if(jar.name.endsWith("natives-armeabi.jar")) outputDir = file("libs/armeabi")
-        if(jar.name.endsWith("natives-x86_64.jar")) outputDir = file("libs/x86_64")
-        if(jar.name.endsWith("natives-x86.jar")) outputDir = file("libs/x86")
-        if(outputDir != null){
-            copy{
-                from zipTree(jar)
-                into outputDir
-                include "*.so"
-            }
+        copy{
+            from zipTree(jar)
+            into file("libs/")
+            include "**"
         }
     }
 }

android/res/values-v21/styles.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <style name="GdxTheme" parent="android:Theme.Material.NoActionBar">
+    <style name="ArcTheme" parent="android:Theme.Material.NoActionBar">
         <item name="android:windowBackground">@android:color/transparent</item>
         <item name="android:colorBackgroundCacheHint">@null</item>
         <item name="android:windowAnimationStyle">@android:style/Animation</item>

android/res/values/styles.xml

@@ -1,6 +1,6 @@
 <resources>
 
-    <style name="GdxTheme" parent="android:Theme">
+    <style name="ArcTheme" parent="android:Theme">
         <item name="android:windowBackground">@android:color/transparent</item>
         <item name="android:colorBackgroundCacheHint">@null</item>
         <item name="android:windowAnimationStyle">@android:style/Animation</item>

android/src/mindustry/android/AndroidLauncher.java

@@ -1,6 +1,7 @@
 package mindustry.android;
 
 import android.*;
+import android.annotation.*;
 import android.app.*;
 import android.content.*;
 import android.content.pm.*;
@@ -68,7 +69,7 @@ public class AndroidLauncher extends AndroidApplication{
             }
 
             @Override
-            public org.mozilla.javascript.Context getScriptContext(){
+            public rhino.Context getScriptContext(){
                 return AndroidRhinoContext.enter(getContext().getCacheDir());
             }
 
@@ -144,9 +145,9 @@ public class AndroidLauncher extends AndroidApplication{
 
         }, new AndroidApplicationConfiguration(){{
             useImmersiveMode = true;
-            depth = 0;
             hideStatusBar = true;
             errorHandler = CrashSender::log;
+            stencil = 8;
         }});
         checkFiles(getIntent());
 

android/src/mindustry/android/AndroidRhinoContext.java

@@ -13,7 +13,7 @@ import com.android.dx.dex.cf.*;
 import com.android.dx.dex.file.DexFile;
 import com.android.dx.merge.*;
 import dalvik.system.*;
-import org.mozilla.javascript.*;
+import rhino.*;
 
 import java.io.*;
 import java.nio.*;

annotations/build.gradle

@@ -1,6 +1,2 @@
-apply plugin: "java"
-
-sourceCompatibility = 1.8
 sourceSets.main.java.srcDirs = ["src/main/java/"]
-sourceSets.main.resources.srcDirs = ["src/main/resources/"]
-
+sourceSets.main.resources.srcDirs = ["src/main/resources/"]

annotations/src/main/java/mindustry/annotations/Annotations.java

@@ -5,11 +5,67 @@ import java.lang.annotation.*;
 public class Annotations{
     //region entity interfaces
 
+    /** Indicates that a method overrides other methods. */
+    @Target({ElementType.METHOD})
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface Replace{
+    }
+
+    /** Indicates that a method should be final in all implementing classes. */
+    @Target({ElementType.METHOD})
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface Final{
+    }
+
+    /** Indicates that a field will be interpolated when synced. */
+    @Target({ElementType.FIELD})
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface SyncField{
+        /** If true, the field will be linearly interpolated. If false, it will be interpolated as an angle. */
+        boolean value();
+        /** If true, the field is clamped to 0-1. */
+        boolean clamped() default false;
+    }
+
+    /** Indicates that a field will not be read from the server when syncing the local player state. */
+    @Target({ElementType.FIELD})
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface SyncLocal{
+
+    }
+
+    /** Indicates that a component field is imported from other components. This means it doesn't actually exist. */
+    @Target({ElementType.FIELD})
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface Import{
+    }
+
+    /** Indicates that a component field is read-only. */
+    @Target({ElementType.FIELD, ElementType.METHOD})
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface ReadOnly{
+    }
+
     /** Indicates multiple inheritance on a component type. */
     @Target(ElementType.TYPE)
     @Retention(RetentionPolicy.SOURCE)
-    public @interface Depends{
-        Class[] value();
+    public @interface Component{
+        /** Whether to generate a base class for this components.
+         * An entity cannot have two base classes, so only one component can have base be true. */
+        boolean base() default false;
+    }
+
+    /** Indicates that a method is implemented by the annotation processor. */
+    @Target(ElementType.METHOD)
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface InternalImpl{
+    }
+
+    /** Indicates priority of a method in an entity. Methods with higher priority are done last. */
+    @Target(ElementType.METHOD)
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface MethodPriority{
+        float value();
     }
 
     /** Indicates that a component def is present on all entities. */
@@ -18,11 +74,30 @@ public class Annotations{
     public @interface BaseComponent{
     }
 
+    /** Creates a group that only examines entities that have all the components listed. */
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface GroupDef{
+        Class[] value();
+        boolean collide() default false;
+        boolean spatial() default false;
+        boolean mapping() default false;
+    }
+
     /** Indicates an entity definition. */
-    @Target(ElementType.TYPE)
     @Retention(RetentionPolicy.SOURCE)
     public @interface EntityDef{
+        /** List of component interfaces */
         Class[] value();
+        /** Whether the class is final */
+        boolean isFinal() default true;
+        /** If true, entities are recycled. */
+        boolean pooled() default false;
+        /** Whether to serialize (makes the serialize method return this value).
+         * If true, this entity is automatically put into save files.
+         * If false, no serialization code is generated at all. */
+        boolean serialize() default true;
+        /** Whether to generate IO code. This is for advanced usage only. */
+        boolean genio() default true;
     }
 
     /** Indicates an internal interface for entity components. */
@@ -34,6 +109,25 @@ public class Annotations{
     //endregion
     //region misc. utility
 
+    /** Automatically loads block regions annotated with this. */
+    @Target(ElementType.FIELD)
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface Load{
+        /**
+         * The region name to load. Variables can be used:
+         * "@" -> block name
+         * "$size" -> block size
+         * "#" "#1" "#2" -> index number, for arrays
+         * */
+        String value();
+        /** 1D Array length, if applicable.  */
+        int length() default 1;
+        /** 2D array lengths. */
+        int[] lengths() default {};
+        /** Fallback string used to replace "@" (the block name) if the region isn't found. */
+        String fallback() default "error";
+    }
+
     @Target(ElementType.TYPE)
     @Retention(RetentionPolicy.SOURCE)
     public @interface StyleDefaults{
@@ -52,13 +146,6 @@ public class Annotations{
     public @interface OverrideCallSuper{
     }
 
-    /** Marks a class as serializable. */
-    @Target(ElementType.TYPE)
-    @Retention(RetentionPolicy.SOURCE)
-    public @interface Serialize{
-
-    }
-
     //endregion
     //region struct
 
@@ -153,26 +240,9 @@ public class Annotations{
         PacketPriority priority() default PacketPriority.normal;
     }
 
-    /**
-     * Specifies that this method will be used to write classes of the type returned by {@link #value()}.<br>
-     * This method must return void and have two parameters, the first being of type {@link java.nio.ByteBuffer} and the second
-     * being the type returned by {@link #value()}.
-     */
-    @Target(ElementType.METHOD)
+    @Target(ElementType.TYPE)
     @Retention(RetentionPolicy.SOURCE)
-    public @interface WriteClass{
-        Class<?> value();
-    }
-
-    /**
-     * Specifies that this method will be used to read classes of the type returned by {@link #value()}. <br>
-     * This method must return the type returned by {@link #value()},
-     * and have one parameter, being of type {@link java.nio.ByteBuffer}.
-     */
-    @Target(ElementType.METHOD)
-    @Retention(RetentionPolicy.SOURCE)
-    public @interface ReadClass{
-        Class<?> value();
+    public @interface TypeIOHandler{
     }
 
     //endregion

annotations/src/main/java/mindustry/annotations/BaseProcessor.java

@@ -1,19 +1,28 @@
 package mindustry.annotations;
 
+import arc.files.*;
 import arc.struct.*;
+import arc.util.Log;
+import arc.util.Log.*;
 import arc.util.*;
 import com.squareup.javapoet.*;
 import com.sun.source.util.*;
+import com.sun.tools.javac.model.*;
+import com.sun.tools.javac.processing.*;
+import com.sun.tools.javac.tree.*;
+import com.sun.tools.javac.util.*;
 import mindustry.annotations.util.*;
 
 import javax.annotation.processing.*;
 import javax.lang.model.*;
 import javax.lang.model.element.*;
+import javax.lang.model.type.*;
 import javax.lang.model.util.*;
 import javax.tools.Diagnostic.*;
 import javax.tools.*;
 import java.io.*;
 import java.lang.annotation.*;
+import java.util.List;
 import java.util.*;
 
 @SupportedSourceVersion(SourceVersion.RELEASE_8)
@@ -22,14 +31,18 @@ public abstract class BaseProcessor extends AbstractProcessor{
     public static final String packageName = "mindustry.gen";
 
     public static Types typeu;
-    public static Elements elementu;
+    public static JavacElements elementu;
     public static Filer filer;
     public static Messager messager;
     public static Trees trees;
+    public static TreeMaker maker;
 
     protected int round;
     protected int rounds = 1;
     protected RoundEnvironment env;
+    protected Fi rootDirectory;
+
+    protected Context context;
 
     public static String getMethodName(Element element){
         return ((TypeElement)element.getEnclosingElement()).getQualifiedName().toString() + "." + element.getSimpleName();
@@ -40,16 +53,90 @@ public abstract class BaseProcessor extends AbstractProcessor{
         || type.equals("long") || type.equals("float") || type.equals("double") || type.equals("char");
     }
 
+    public static boolean instanceOf(String type, String other){
+        TypeElement a = elementu.getTypeElement(type);
+        TypeElement b = elementu.getTypeElement(other);
+        return a != null && b != null && typeu.isSubtype(a.asType(), b.asType());
+    }
+
+    public static String getDefault(String value){
+        switch(value){
+            case "float":
+            case "double":
+            case "int":
+            case "long":
+            case "short":
+            case "char":
+            case "byte":
+                return "0";
+            case "boolean":
+                return "false";
+            default:
+                return "null";
+        }
+    }
+
+    //in bytes
+    public static int typeSize(String kind){
+        switch(kind){
+            case "boolean":
+            case "byte":
+                return 1;
+            case "short":
+                return 2;
+            case "float":
+            case "char":
+            case "int":
+                return 4;
+            case "long":
+                return 8;
+            default:
+                throw new IllegalArgumentException("Invalid primitive type: " + kind + "");
+        }
+    }
+
+    public static String simpleName(String str){
+        return str.contains(".") ? str.substring(str.lastIndexOf('.') + 1) : str;
+    }
+
+    public static TypeName tname(String pack, String simple){
+        return ClassName.get(pack, simple );
+    }
+
+    public static TypeName tname(String name){
+        if(!name.contains(".")) return ClassName.get(packageName, name);
+
+        String pack = name.substring(0, name.lastIndexOf("."));
+        String simple = name.substring(name.lastIndexOf(".") + 1);
+        return ClassName.get(pack, simple);
+    }
+
+    public static TypeName tname(Class<?> c){
+        return ClassName.get(c).box();
+    }
+
+    public static TypeVariableName getTVN(TypeParameterElement element) {
+        String name = element.getSimpleName().toString();
+        List<? extends TypeMirror> boundsMirrors = element.getBounds();
+
+        List<TypeName> boundsTypeNames = new ArrayList<>();
+        for (TypeMirror typeMirror : boundsMirrors) {
+            boundsTypeNames.add(TypeName.get(typeMirror));
+        }
+
+        return TypeVariableName.get(name, boundsTypeNames.toArray(new TypeName[0]));
+    }
+
     public static void write(TypeSpec.Builder builder) throws Exception{
         write(builder, null);
     }
 
-    public static void write(TypeSpec.Builder builder, Array<String> imports) throws Exception{
+    public static void write(TypeSpec.Builder builder, Seq<String> imports) throws Exception{
         JavaFile file = JavaFile.builder(packageName, builder.build()).skipJavaLangImports(true).build();
 
         if(imports != null){
             String rawSource = file.toString();
-            Array<String> result = new Array<>();
+            Seq<String> result = new Seq<>();
             for (String s : rawSource.split("\n", -1)) {
                 result.add(s);
                 if (s.startsWith("package ")) {
@@ -70,27 +157,31 @@ public abstract class BaseProcessor extends AbstractProcessor{
         }
     }
 
-    public Array<Stype> types(Class<? extends Annotation> type){
-        return Array.with(env.getElementsAnnotatedWith(type)).select(e -> e instanceof TypeElement)
+    public Seq<Selement> elements(Class<? extends Annotation> type){
+        return Seq.with(env.getElementsAnnotatedWith(type)).map(Selement::new);
+    }
+
+    public Seq<Stype> types(Class<? extends Annotation> type){
+        return Seq.with(env.getElementsAnnotatedWith(type)).select(e -> e instanceof TypeElement)
             .map(e -> new Stype((TypeElement)e));
     }
 
-    public Array<Svar> fields(Class<? extends Annotation> type){
-        return Array.with(env.getElementsAnnotatedWith(type)).select(e -> e instanceof VariableElement)
+    public Seq<Svar> fields(Class<? extends Annotation> type){
+        return Seq.with(env.getElementsAnnotatedWith(type)).select(e -> e instanceof VariableElement)
         .map(e -> new Svar((VariableElement)e));
     }
 
-    public Array<Smethod> methods(Class<? extends Annotation> type){
-        return Array.with(env.getElementsAnnotatedWith(type)).select(e -> e instanceof ExecutableElement)
+    public Seq<Smethod> methods(Class<? extends Annotation> type){
+        return Seq.with(env.getElementsAnnotatedWith(type)).select(e -> e instanceof ExecutableElement)
         .map(e -> new Smethod((ExecutableElement)e));
     }
 
-    public void err(String message){
+    public static void err(String message){
         messager.printMessage(Kind.ERROR, message);
         Log.err("[CODEGEN ERROR] " +message);
     }
 
-    public void err(String message, Element elem){
+    public static void err(String message, Element elem){
         messager.printMessage(Kind.ERROR, message, elem);
         Log.err("[CODEGEN ERROR] " + message + ": " + elem);
     }
@@ -103,20 +194,41 @@ public abstract class BaseProcessor extends AbstractProcessor{
     public synchronized void init(ProcessingEnvironment env){
         super.init(env);
 
+        JavacProcessingEnvironment javacProcessingEnv = (JavacProcessingEnvironment)env;
+
         trees = Trees.instance(env);
         typeu = env.getTypeUtils();
-        elementu = env.getElementUtils();
+        elementu = javacProcessingEnv.getElementUtils();
         filer = env.getFiler();
         messager = env.getMessager();
+        context = ((JavacProcessingEnvironment)env).getContext();
+        maker = TreeMaker.instance(javacProcessingEnv.getContext());
+
+        Log.setLogLevel(LogLevel.info);
+
+        if(System.getProperty("debug") != null){
+            Log.setLogLevel(LogLevel.debug);
+        }
     }
 
     @Override
     public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv){
         if(round++ >= rounds) return false; //only process 1 round
+        if(rootDirectory == null){
+            try{
+                String path = Fi.get(filer.getResource(StandardLocation.CLASS_OUTPUT, "no", "no")
+                .toUri().toURL().toString().substring(OS.isWindows ? 6 : "file:".length()))
+                .parent().parent().parent().parent().parent().parent().parent().toString().replace("%20", " ");
+                rootDirectory = Fi.get(path);
+            }catch(IOException e){
+                throw new RuntimeException(e);
+            }
+        }
+
         this.env = roundEnv;
         try{
             process(roundEnv);
-        }catch(Exception e){
+        }catch(Throwable e){
             e.printStackTrace();
             throw new RuntimeException(e);
         }

annotations/src/main/java/mindustry/annotations/entity/EntityIO.java

@@ -0,0 +1,340 @@
+package mindustry.annotations.entity;
+
+import arc.files.*;
+import arc.math.*;
+import arc.struct.*;
+import arc.util.*;
+import arc.util.serialization.*;
+import com.squareup.javapoet.*;
+import mindustry.annotations.Annotations.*;
+import mindustry.annotations.*;
+import mindustry.annotations.util.*;
+import mindustry.annotations.util.TypeIOResolver.*;
+
+import javax.lang.model.element.*;
+
+import static mindustry.annotations.BaseProcessor.instanceOf;
+
+public class EntityIO{
+    final static Json json = new Json();
+    //suffixes for sync fields
+    final static String targetSuf = "_TARGET_", lastSuf = "_LAST_";
+    //replacements after refactoring
+    final static StringMap replacements = StringMap.of("mindustry.entities.units.BuildRequest", "mindustry.entities.units.BuildPlan");
+
+    final ClassSerializer serializer;
+    final String name;
+    final TypeSpec.Builder type;
+    final Fi directory;
+    final Seq<Revision> revisions = new Seq<>();
+
+    boolean write;
+    MethodSpec.Builder method;
+    ObjectSet<String> presentFields = new ObjectSet<>();
+
+    EntityIO(String name, TypeSpec.Builder type, Seq<FieldSpec> typeFields, ClassSerializer serializer, Fi directory){
+        this.directory = directory;
+        this.type = type;
+        this.serializer = serializer;
+        this.name = name;
+
+        directory.mkdirs();
+
+        //load old revisions
+        for(Fi fi : directory.list()){
+            revisions.add(json.fromJson(Revision.class, fi));
+        }
+
+        //next revision to be used
+        int nextRevision = revisions.isEmpty() ? 0 : revisions.max(r -> r.version).version + 1;
+
+        //resolve preferred field order based on fields that fit
+        Seq<FieldSpec> fields = typeFields.select(spec ->
+            !spec.hasModifier(Modifier.TRANSIENT) &&
+            !spec.hasModifier(Modifier.STATIC) &&
+            !spec.hasModifier(Modifier.FINAL)/* &&
+            (spec.type.isPrimitive() || serializer.has(spec.type.toString()))*/);
+
+        //sort to keep order
+        fields.sortComparing(f -> f.name);
+
+        //keep track of fields present in the entity
+        presentFields.addAll(fields.map(f -> f.name));
+
+        //add new revision if it doesn't match or there are no revisions
+        if(revisions.isEmpty() || !revisions.peek().equal(fields)){
+            revisions.add(new Revision(nextRevision,
+                fields.map(f -> new RevisionField(f.name, f.type.toString(),
+                f.type.isPrimitive() ? BaseProcessor.typeSize(f.type.toString()) : -1))));
+            //write revision
+            directory.child(nextRevision + ".json").writeString(json.toJson(revisions.peek()));
+        }
+    }
+
+    void write(MethodSpec.Builder method, boolean write) throws Exception{
+        this.method = method;
+        this.write = write;
+
+        //subclasses *have* to call this method
+        method.addAnnotation(CallSuper.class);
+
+        if(write){
+            //write short revision
+            st("write.s($L)", revisions.peek().version);
+            //write uses most recent revision
+            for(RevisionField field : revisions.peek().fields){
+                io(field.type, "this." + field.name);
+            }
+        }else{
+            //read revision
+            st("short REV = read.s()");
+
+            for(int i = 0; i < revisions.size; i++){
+                //check for the right revision
+                Revision rev = revisions.get(i);
+                if(i == 0){
+                    cont("if(REV == $L)", rev.version);
+                }else{
+                    ncont("else if(REV == $L)", rev.version);
+                }
+
+                //add code for reading revision
+                for(RevisionField field : rev.fields){
+                    //if the field doesn't exist, the result will be an empty string, it won't get assigned
+                    io(field.type, presentFields.contains(field.name) ? "this." + field.name + " = " : "");
+                }
+            }
+
+            //throw exception on illegal revisions
+            ncont("else");
+            st("throw new IllegalArgumentException(\"Unknown revision '\" + REV + \"' for entity type '" + name + "'\")");
+            econt();
+        }
+    }
+
+    void writeSync(MethodSpec.Builder method, boolean write, Seq<Svar> syncFields, Seq<Svar> allFields) throws Exception{
+        this.method = method;
+        this.write = write;
+
+        if(write){
+            //write uses most recent revision
+            for(RevisionField field : revisions.peek().fields){
+                io(field.type, "this." + field.name);
+            }
+        }else{
+            Revision rev = revisions.peek();
+
+            //base read code
+            st("if(lastUpdated != 0) updateSpacing = $T.timeSinceMillis(lastUpdated)", Time.class);
+            st("lastUpdated = $T.millis()", Time.class);
+            st("boolean islocal = isLocal()");
+
+            //add code for reading revision
+            for(RevisionField field : rev.fields){
+                Svar var = allFields.find(s -> s.name().equals(field.name));
+                boolean sf = var.has(SyncField.class), sl = var.has(SyncLocal.class);
+
+                if(sl) cont("if(!islocal)");
+
+                if(sf){
+                    st(field.name + lastSuf + " = this." + field.name);
+                }
+
+                io(field.type, "this." + (sf ? field.name + targetSuf : field.name) + " = ");
+
+                if(sl){
+                    ncont("else" );
+
+                    io(field.type, "");
+
+                    econt();
+                }
+            }
+
+            st("afterSync()");
+        }
+    }
+
+    void writeSyncManual(MethodSpec.Builder method, boolean write, Seq<Svar> syncFields) throws Exception{
+        this.method = method;
+        this.write = write;
+
+        if(write){
+            for(Svar field : syncFields){
+                st("buffer.put(this.$L)", field.name());
+            }
+        }else{
+            //base read code
+            st("if(lastUpdated != 0) updateSpacing = $T.timeSinceMillis(lastUpdated)", Time.class);
+            st("lastUpdated = $T.millis()", Time.class);
+
+            //just read the field
+            for(Svar field : syncFields){
+                //last
+                st("this.$L = this.$L", field.name() + lastSuf, field.name());
+                //assign target
+                st("this.$L = buffer.get()", field.name() + targetSuf);
+            }
+        }
+    }
+
+    void writeInterpolate(MethodSpec.Builder method, Seq<Svar> fields) throws Exception{
+        this.method = method;
+
+        cont("if(lastUpdated != 0 && updateSpacing != 0)");
+
+        //base calculations
+        st("float timeSinceUpdate = Time.timeSinceMillis(lastUpdated)");
+        st("float alpha = Math.min(timeSinceUpdate / updateSpacing, 2f)");
+
+        //write interpolated data, using slerp / lerp
+        for(Svar field : fields){
+            String name = field.name(), targetName = name + targetSuf, lastName = name + lastSuf;
+            st("$L = $L($T.$L($L, $L, alpha))", name, field.annotation(SyncField.class).clamped() ? "arc.math.Mathf.clamp" : "", Mathf.class, field.annotation(SyncField.class).value() ? "lerp" : "slerp", lastName, targetName);
+        }
+
+        ncont("else"); //no meaningful data has arrived yet
+
+        //write values directly to targets
+        for(Svar field : fields){
+            String name = field.name(), targetName = name + targetSuf;
+            st("$L = $L", name, targetName);
+        }
+
+        econt();
+    }
+
+    private void io(String type, String field) throws Exception{
+        type = type.replace("mindustry.gen.", "");
+        type = replacements.get(type, type);
+
+        if(BaseProcessor.isPrimitive(type)){
+            s(type.equals("boolean") ? "bool" : type.charAt(0) + "", field);
+        }else if(instanceOf(type, "mindustry.ctype.Content")){
+            if(write){
+                s("s", field + ".id");
+            }else{
+                st(field + "mindustry.Vars.content.getByID(mindustry.ctype.ContentType.$L, read.s())", BaseProcessor.simpleName(type).toLowerCase().replace("type", ""));
+            }
+        }else if(serializer.writers.containsKey(type) && write){
+            st("$L(write, $L)", serializer.writers.get(type), field);
+        }else if(serializer.mutatorReaders.containsKey(type) && !write && !field.replace(" = ", "").contains(" ") && !field.isEmpty()){
+            st("$L$L(read, $L)", field, serializer.mutatorReaders.get(type), field.replace(" = ", ""));
+        }else if(serializer.readers.containsKey(type) && !write){
+            st("$L$L(read)", field, serializer.readers.get(type));
+        }else if(type.endsWith("[]")){ //it's a 1D array
+            String rawType = type.substring(0, type.length() - 2);
+
+            if(write){
+                s("i", field + ".length");
+                cont("for(int INDEX = 0; INDEX < $L.length; INDEX ++)", field);
+                io(rawType, field + "[INDEX]");
+            }else{
+                String fieldName = field.replace(" = ", "").replace("this.", "");
+                String lenf = fieldName + "_LENGTH";
+                s("i", "int " + lenf + " = ");
+                if(!field.isEmpty()){
+                    st("$Lnew $L[$L]", field, type.replace("[]", ""), lenf);
+                }
+                cont("for(int INDEX = 0; INDEX < $L; INDEX ++)", lenf);
+                io(rawType, field.replace(" = ", "[INDEX] = "));
+            }
+
+            econt();
+        }else if(type.startsWith("arc.struct") && type.contains("<")){ //it's some type of data structure
+            String struct = type.substring(0, type.indexOf("<"));
+            String generic = type.substring(type.indexOf("<") + 1, type.indexOf(">"));
+
+            if(struct.equals("arc.struct.Queue") || struct.equals("arc.struct.Seq")){
+                if(write){
+                    s("i", field + ".size");
+                    cont("for(int INDEX = 0; INDEX < $L.size; INDEX ++)", field);
+                    io(generic, field + ".get(INDEX)");
+                }else{
+                    String fieldName = field.replace(" = ", "").replace("this.", "");
+                    String lenf = fieldName + "_LENGTH";
+                    s("i", "int " + lenf + " = ");
+                    if(!field.isEmpty()){
+                        st("$L.clear()", field.replace(" = ", ""));
+                    }
+                    cont("for(int INDEX = 0; INDEX < $L; INDEX ++)", lenf);
+                    io(generic, field.replace(" = ", "_ITEM = ").replace("this.", generic + " "));
+                    if(!field.isEmpty()){
+                        String temp = field.replace(" = ", "_ITEM").replace("this.", "");
+                        st("if($L != null) $L.add($L)", temp, field.replace(" = ", ""), temp);
+                    }
+                }
+
+                econt();
+            }else{
+                Log.warn("Missing serialization code for collection '@' in '@'", type, name);
+            }
+        }else{
+            Log.warn("Missing serialization code for type '@' in '@'", type, name);
+        }
+    }
+
+    private void cont(String text, Object... fmt){
+        method.beginControlFlow(text, fmt);
+    }
+
+    private void econt(){
+        method.endControlFlow();
+    }
+
+    private void ncont(String text, Object... fmt){
+        method.nextControlFlow(text, fmt);
+    }
+
+    private void st(String text, Object... args){
+        method.addStatement(text, args);
+    }
+
+    private void s(String type, String field){
+        if(write){
+            method.addStatement("write.$L($L)", type, field);
+        }else{
+            method.addStatement("$Lread.$L()", field, type);
+        }
+    }
+
+    public static class Revision{
+        int version;
+        Seq<RevisionField> fields;
+
+        Revision(int version, Seq<RevisionField> fields){
+            this.version = version;
+            this.fields = fields;
+        }
+
+        Revision(){}
+
+        /** @return whether these two revisions are compatible */
+        boolean equal(Seq<FieldSpec> specs){
+            if(fields.size != specs.size) return false;
+
+            for(int i = 0; i < fields.size; i++){
+                RevisionField field = fields.get(i);
+                FieldSpec spec = specs.get(i);
+                //TODO when making fields, their primitive size may be overwritten by an annotation; check for that
+                if(!(field.type.equals(spec.type.toString()) && (!spec.type.isPrimitive() || BaseProcessor.typeSize(spec.type.toString()) == field.size))){
+                    return false;
+                }
+            }
+            return true;
+        }
+    }
+
+    public static class RevisionField{
+        String name, type;
+        int size; //in bytes
+
+        RevisionField(String name, String type, int size){
+            this.name = name;
+            this.size = size;
+            this.type = type;
+        }
+
+        RevisionField(){}
+    }
+}

annotations/src/main/java/mindustry/annotations/entity/EntityProcess.java

@@ -0,0 +1,929 @@
+package mindustry.annotations.entity;
+
+import arc.*;
+import arc.files.*;
+import arc.func.*;
+import arc.struct.*;
+import arc.util.ArcAnnotate.*;
+import arc.util.*;
+import arc.util.io.*;
+import arc.util.pooling.Pool.*;
+import arc.util.pooling.*;
+import com.squareup.javapoet.*;
+import com.squareup.javapoet.TypeSpec.*;
+import com.sun.source.tree.*;
+import mindustry.annotations.Annotations.*;
+import mindustry.annotations.*;
+import mindustry.annotations.util.*;
+import mindustry.annotations.util.TypeIOResolver.*;
+
+import javax.annotation.processing.*;
+import javax.lang.model.element.*;
+import javax.lang.model.type.*;
+import java.lang.annotation.*;
+
+@SupportedAnnotationTypes({
+"mindustry.annotations.Annotations.EntityDef",
+"mindustry.annotations.Annotations.GroupDef",
+"mindustry.annotations.Annotations.EntityInterface",
+"mindustry.annotations.Annotations.BaseComponent",
+"mindustry.annotations.Annotations.TypeIOHandler"
+})
+public class EntityProcess extends BaseProcessor{
+    Seq<EntityDefinition> definitions = new Seq<>();
+    Seq<GroupDefinition> groupDefs = new Seq<>();
+    Seq<Stype> baseComponents;
+    ObjectMap<String, Stype> componentNames = new ObjectMap<>();
+    ObjectMap<Stype, Seq<Stype>> componentDependencies = new ObjectMap<>();
+    ObjectMap<Selement, Seq<Stype>> defComponents = new ObjectMap<>();
+    ObjectMap<String, String> varInitializers = new ObjectMap<>();
+    ObjectMap<String, String> methodBlocks = new ObjectMap<>();
+    ObjectMap<Stype, ObjectSet<Stype>> baseClassDeps = new ObjectMap<>();
+    ObjectSet<String> imports = new ObjectSet<>();
+    Seq<Selement> allGroups = new Seq<>();
+    Seq<Selement> allDefs = new Seq<>();
+    Seq<Stype> allInterfaces = new Seq<>();
+    Seq<TypeSpec.Builder> baseClasses = new Seq<>();
+    ClassSerializer serializer;
+
+    {
+        rounds = 3;
+    }
+
+    @Override
+    public void process(RoundEnvironment env) throws Exception{
+        allGroups.addAll(elements(GroupDef.class));
+        allDefs.addAll(elements(EntityDef.class));
+        allInterfaces.addAll(types(EntityInterface.class));
+
+        //round 1: generate component interfaces
+        if(round == 1){
+            serializer = TypeIOResolver.resolve(this);
+            baseComponents = types(BaseComponent.class);
+            Seq<Stype> allComponents = types(Component.class);
+
+            //store code
+            for(Stype component : allComponents){
+                for(Svar f : component.fields()){
+                    VariableTree tree = f.tree();
+
+                    //add initializer if it exists
+                    if(tree.getInitializer() != null){
+                        String init = tree.getInitializer().toString();
+                        varInitializers.put(f.descString(), init);
+                    }
+                }
+
+                for(Smethod elem : component.methods()){
+                    if(elem.is(Modifier.ABSTRACT) || elem.is(Modifier.NATIVE)) continue;
+                    //get all statements in the method, store them
+                    methodBlocks.put(elem.descString(), elem.tree().getBody().toString());
+                }
+            }
+
+            //store components
+            for(Stype type : allComponents){
+                componentNames.put(type.name(), type);
+            }
+
+            //add component imports
+            for(Stype comp : allComponents){
+                imports.addAll(getImports(comp.e));
+            }
+
+            //create component interfaces
+            for(Stype component : allComponents){
+                TypeSpec.Builder inter = TypeSpec.interfaceBuilder(interfaceName(component))
+                .addModifiers(Modifier.PUBLIC).addAnnotation(EntityInterface.class);
+
+                inter.addJavadoc("Interface for {@link $L}", component.fullName());
+
+                //implement extra interfaces these components may have, e.g. position
+                for(Stype extraInterface : component.interfaces().select(i -> !isCompInterface(i))){
+                    //javapoet completely chokes on this if I add `addSuperInterface` or create the type name with TypeName.get
+                    inter.superinterfaces.add(tname(extraInterface.fullName()));
+                }
+
+                //implement super interfaces
+                Seq<Stype> depends = getDependencies(component);
+                for(Stype type : depends){
+                    inter.addSuperinterface(ClassName.get(packageName, interfaceName(type)));
+                }
+
+                ObjectSet<String> signatures = new ObjectSet<>();
+
+                //add utility methods to interface
+                for(Smethod method : component.methods()){
+                    //skip private methods, those are for internal use.
+                    if(method.isAny(Modifier.PRIVATE, Modifier.STATIC)) continue;
+
+                    //keep track of signatures used to prevent dupes
+                    signatures.add(method.e.toString());
+
+                    inter.addMethod(MethodSpec.methodBuilder(method.name())
+                    .addJavadoc(method.doc() == null ? "" : method.doc())
+                    .addExceptions(method.thrownt())
+                    .addTypeVariables(method.typeVariables().map(TypeVariableName::get))
+                    .returns(method.ret().toString().equals("void") ? TypeName.VOID : method.retn())
+                    .addParameters(method.params().map(v -> ParameterSpec.builder(v.tname(), v.name())
+                    .build())).addModifiers(Modifier.PUBLIC, Modifier.ABSTRACT).build());
+                }
+
+                for(Svar field : component.fields().select(e -> !e.is(Modifier.STATIC) && !e.is(Modifier.PRIVATE) && !e.has(Import.class))){
+                    String cname = field.name();
+
+                    //getter
+                    if(!signatures.contains(cname + "()")){
+                        inter.addMethod(MethodSpec.methodBuilder(cname).addModifiers(Modifier.ABSTRACT, Modifier.PUBLIC)
+                        .addAnnotations(Seq.with(field.annotations()).select(a -> a.toString().contains("Null")).map(AnnotationSpec::get))
+                        .addJavadoc(field.doc() == null ? "" : field.doc())
+                        .returns(field.tname()).build());
+                    }
+
+                    //setter
+                    if(!field.is(Modifier.FINAL) && !signatures.contains(cname + "(" + field.mirror().toString() + ")") &&
+                    !field.annotations().contains(f -> f.toString().equals("@mindustry.annotations.Annotations.ReadOnly"))){
+                        inter.addMethod(MethodSpec.methodBuilder(cname).addModifiers(Modifier.ABSTRACT, Modifier.PUBLIC)
+                        .addJavadoc(field.doc() == null ? "" : field.doc())
+                        .addParameter(ParameterSpec.builder(field.tname(), field.name())
+                        .addAnnotations(Seq.with(field.annotations())
+                        .select(a -> a.toString().contains("Null")).map(AnnotationSpec::get)).build()).build());
+                    }
+                }
+
+                write(inter);
+
+                //generate base class if necessary
+                //SPECIAL CASE: components with EntityDefs don't get a base class! the generated class becomes the base class itself
+                if(component.annotation(Component.class).base()){
+
+                    Seq<Stype> deps = depends.copy().and(component);
+                    baseClassDeps.get(component, ObjectSet::new).addAll(deps);
+
+                    //do not generate base classes when the component will generate one itself
+                    if(!component.has(EntityDef.class)){
+                        TypeSpec.Builder base = TypeSpec.classBuilder(baseName(component)).addModifiers(Modifier.PUBLIC, Modifier.ABSTRACT);
+
+                        //go through all the fields.
+                        for(Stype type : deps){
+                            //add public fields
+                            for(Svar field : type.fields().select(e -> !e.is(Modifier.STATIC) && !e.is(Modifier.PRIVATE) && !e.has(Import.class) && !e.has(ReadOnly.class))){
+                                FieldSpec.Builder builder = FieldSpec.builder(field.tname(),field.name(), Modifier.PUBLIC);
+
+                                //keep transience
+                                if(field.is(Modifier.TRANSIENT)) builder.addModifiers(Modifier.TRANSIENT);
+                                //keep all annotations
+                                builder.addAnnotations(field.annotations().map(AnnotationSpec::get));
+
+                                //add initializer if it exists
+                                if(varInitializers.containsKey(field.descString())){
+                                    builder.initializer(varInitializers.get(field.descString()));
+                                }
+
+                                base.addField(builder.build());
+                            }
+                        }
+
+                        //add interfaces
+                        for(Stype type : deps){
+                            base.addSuperinterface(tname(packageName, interfaceName(type)));
+                        }
+
+                        //add to queue to be written later
+                        baseClasses.add(base);
+                    }
+                }
+
+                //LOGGING
+
+                Log.debug("&gGenerating interface for " + component.name());
+
+                for(TypeName tn : inter.superinterfaces){
+                    Log.debug("&g> &lbimplements @", simpleName(tn.toString()));
+                }
+
+                //log methods generated
+                for(MethodSpec spec : inter.methodSpecs){
+                    Log.debug("&g> > &c@ @(@)", simpleName(spec.returnType.toString()), spec.name, Seq.with(spec.parameters).toString(", ", p -> simpleName(p.type.toString()) + " " + p.name));
+                }
+
+                Log.debug("");
+            }
+
+        }else if(round == 2){ //round 2: get component classes and generate interfaces for them
+
+            //parse groups
+            //this needs to be done before the entity interfaces are generated, as the entity classes need to know which groups to add themselves to
+            for(Selement<?> group : allGroups){
+                GroupDef an = group.annotation(GroupDef.class);
+                Seq<Stype> types = types(an, GroupDef::value).map(stype -> {
+                    Stype result = interfaceToComp(stype);
+                    if(result == null) throw new IllegalArgumentException("Interface " + stype + " does not have an associated component!");
+                    return result;
+                });
+
+                //representative component type
+                Stype repr = types.first();
+                String groupType = repr.annotation(Component.class).base() ? baseName(repr) : interfaceName(repr);
+
+                boolean collides = an.collide();
+                groupDefs.add(new GroupDefinition(group.name().startsWith("g") ? group.name().substring(1) : group.name(),
+                    ClassName.bestGuess(packageName + "." + groupType), types, an.spatial(), an.mapping(), collides));
+            }
+
+            ObjectMap<String, Selement> usedNames = new ObjectMap<>();
+            ObjectMap<Selement, ObjectSet<String>> extraNames = new ObjectMap<>();
+
+            //look at each definition
+            for(Selement<?> type : allDefs){
+                EntityDef ann = type.annotation(EntityDef.class);
+                boolean isFinal = ann.isFinal();
+
+                //all component classes (not interfaces)
+                Seq<Stype> components = allComponents(type);
+                Seq<GroupDefinition> groups = groupDefs.select(g -> (!g.components.isEmpty() && !g.components.contains(s -> !components.contains(s))) || g.manualInclusions.contains(type));
+                ObjectMap<String, Seq<Smethod>> methods = new ObjectMap<>();
+                ObjectMap<FieldSpec, Svar> specVariables = new ObjectMap<>();
+                ObjectSet<String> usedFields = new ObjectSet<>();
+
+                //make sure there's less than 2 base classes
+                Seq<Stype> baseClasses = components.select(s -> s.annotation(Component.class).base());
+                if(baseClasses.size > 2){
+                    err("No entity may have more than 2 base classes. Base classes: " + baseClasses, type);
+                }
+
+                //get base class type name for extension
+                Stype baseClassType = baseClasses.any() ? baseClasses.first() : null;
+                @Nullable TypeName baseClass = baseClasses.any() ? tname(packageName + "." + baseName(baseClassType)) : null;
+                //whether the main class is the base itself
+                boolean typeIsBase = baseClassType != null && type.has(Component.class) && type.annotation(Component.class).base();
+
+                if(type.isType() && (!type.name().endsWith("Def") && !type.name().endsWith("Comp"))){
+                    err("All entity def names must end with 'Def'/'Comp'", type.e);
+                }
+
+                String name = type.isType() ?
+                    type.name().replace("Def", "").replace("Comp", "") :
+                    createName(type);
+
+                //check for type name conflicts
+                if(!typeIsBase && baseClass != null && name.equals(baseName(baseClassType))){
+                    name += "Entity";
+                }
+
+                //skip double classes
+                if(usedNames.containsKey(name)){
+                    extraNames.get(usedNames.get(name), ObjectSet::new).add(type.name());
+                    continue;
+                }
+
+                usedNames.put(name, type);
+                extraNames.get(type, ObjectSet::new).add(name);
+                if(!type.isType()){
+                    extraNames.get(type, ObjectSet::new).add(type.name());
+                }
+
+                TypeSpec.Builder builder = TypeSpec.classBuilder(name).addModifiers(Modifier.PUBLIC);
+
+                if(isFinal && !typeIsBase) builder.addModifiers(Modifier.FINAL);
+
+                //add serialize() boolean
+                builder.addMethod(MethodSpec.methodBuilder("serialize").addModifiers(Modifier.PUBLIC).returns(boolean.class).addStatement("return " + ann.serialize()).build());
+
+                //all SyncField fields
+                Seq<Svar> syncedFields = new Seq<>();
+                Seq<Svar> allFields = new Seq<>();
+                Seq<FieldSpec> allFieldSpecs = new Seq<>();
+
+                boolean isSync = components.contains(s -> s.name().contains("Sync"));
+
+                //add all components
+                for(Stype comp : components){
+                    //whether this component's fields are defined in the base class
+                    boolean isShadowed = baseClass != null && !typeIsBase && baseClassDeps.get(baseClassType).contains(comp);
+
+                    //write fields to the class; ignoring transient/imported ones
+                    Seq<Svar> fields = comp.fields().select(f -> !f.has(Import.class));
+                    for(Svar f : fields){
+                        if(!usedFields.add(f.name())){
+                            err("Field '" + f.name() + "' of component '" + comp.name() + "' redefines a field in entity '" + type.name() + "'");
+                            continue;
+                        }
+
+                        FieldSpec.Builder fbuilder = FieldSpec.builder(f.tname(), f.name());
+                        //keep statics/finals
+                        if(f.is(Modifier.STATIC)){
+                            fbuilder.addModifiers(Modifier.STATIC);
+                            if(f.is(Modifier.FINAL)) fbuilder.addModifiers(Modifier.FINAL);
+                        }
+                        //add transient modifier for serialization
+                        if(f.is(Modifier.TRANSIENT)){
+                            fbuilder.addModifiers(Modifier.TRANSIENT);
+                        }
+
+                        //add initializer if it exists
+                        if(varInitializers.containsKey(f.descString())){
+                            fbuilder.initializer(varInitializers.get(f.descString()));
+                        }
+
+                        fbuilder.addModifiers(f.has(ReadOnly.class) ? Modifier.PROTECTED : Modifier.PUBLIC);
+                        fbuilder.addAnnotations(f.annotations().map(AnnotationSpec::get));
+                        FieldSpec spec = fbuilder.build();
+
+                        //whether this field would be added to the superclass
+                        boolean isVisible = !f.is(Modifier.STATIC) && !f.is(Modifier.PRIVATE) && !f.has(ReadOnly.class);
+
+                        //add the field only if it isn't visible or it wasn't implemented by the base class
+                        if(!isShadowed || !isVisible){
+                            builder.addField(spec);
+                        }
+
+                        specVariables.put(spec, f);
+
+                        allFieldSpecs.add(spec);
+                        allFields.add(f);
+
+                        //add extra sync fields
+                        if(f.has(SyncField.class) && isSync){
+                            if(!f.tname().toString().equals("float")) err("All SyncFields must be of type float", f);
+
+                            syncedFields.add(f);
+
+                            //a synced field has 3 values:
+                            //- target state
+                            //- last state
+                            //- current state (the field itself, will be written to)
+
+                            //target
+                            builder.addField(FieldSpec.builder(float.class, f.name() + EntityIO.targetSuf).addModifiers(Modifier.TRANSIENT, Modifier.PRIVATE).build());
+
+                            //last
+                            builder.addField(FieldSpec.builder(float.class, f.name() + EntityIO.lastSuf).addModifiers(Modifier.TRANSIENT, Modifier.PRIVATE).build());
+                        }
+                    }
+
+                    //get all methods from components
+                    for(Smethod elem : comp.methods()){
+                        methods.get(elem.toString(), Seq::new).add(elem);
+                    }
+                }
+
+                syncedFields.sortComparing(Selement::name);
+
+                //override toString method
+                builder.addMethod(MethodSpec.methodBuilder("toString")
+                    .addAnnotation(Override.class)
+                    .returns(String.class)
+                    .addModifiers(Modifier.PUBLIC)
+                    .addStatement("return $S + $L", name + "#", "id").build());
+
+                EntityIO io = new EntityIO(type.name(), builder, allFieldSpecs, serializer, rootDirectory.child("annotations/src/main/resources/revisions").child(name));
+                //entities with no sync comp and no serialization gen no code
+                boolean hasIO = ann.genio() && (components.contains(s -> s.name().contains("Sync")) || ann.serialize());
+
+                //add all methods from components
+                for(ObjectMap.Entry<String, Seq<Smethod>> entry : methods){
+                    if(entry.value.contains(m -> m.has(Replace.class))){
+                        //check replacements
+                        if(entry.value.count(m -> m.has(Replace.class)) > 1){
+                            err("Type " + type + " has multiple components replacing method " + entry.key + ".");
+                        }
+                        Smethod base = entry.value.find(m -> m.has(Replace.class));
+                        entry.value.clear();
+                        entry.value.add(base);
+                    }
+
+                    //check multi return
+                    if(entry.value.count(m -> !m.isAny(Modifier.NATIVE, Modifier.ABSTRACT) && !m.isVoid()) > 1){
+                        err("Type " + type + " has multiple components implementing non-void method " + entry.key + ".");
+                    }
+
+                    entry.value.sort(Structs.comps(Structs.comparingFloat(m -> m.has(MethodPriority.class) ? m.annotation(MethodPriority.class).value() : 0), Structs.comparing(Selement::name)));
+
+                    //representative method
+                    Smethod first = entry.value.first();
+
+                    //skip internal impl
+                    if(first.has(InternalImpl.class)){
+                        continue;
+                    }
+
+                    //build method using same params/returns
+                    MethodSpec.Builder mbuilder = MethodSpec.methodBuilder(first.name()).addModifiers(first.is(Modifier.PRIVATE) ? Modifier.PRIVATE : Modifier.PUBLIC);
+                    //if(isFinal || entry.value.contains(s -> s.has(Final.class))) mbuilder.addModifiers(Modifier.FINAL);
+                    if(entry.value.contains(s -> s.has(CallSuper.class))) mbuilder.addAnnotation(CallSuper.class); //add callSuper here if necessary
+                    if(first.is(Modifier.STATIC)) mbuilder.addModifiers(Modifier.STATIC);
+                    mbuilder.addTypeVariables(first.typeVariables().map(TypeVariableName::get));
+                    mbuilder.returns(first.retn());
+                    mbuilder.addExceptions(first.thrownt());
+
+                    for(Svar var : first.params()){
+                        mbuilder.addParameter(var.tname(), var.name());
+                    }
+
+                    //only write the block if it's a void method with several entries
+                    boolean writeBlock = first.ret().toString().equals("void") && entry.value.size > 1;
+
+                    if((entry.value.first().is(Modifier.ABSTRACT) || entry.value.first().is(Modifier.NATIVE)) && entry.value.size == 1 && !entry.value.first().has(InternalImpl.class)){
+                        err(entry.value.first().up().getSimpleName() + "#" + entry.value.first() + " is an abstract method and must be implemented in some component", type);
+                    }
+
+                    //SPECIAL CASE: inject group add/remove code
+                    if(first.name().equals("add") || first.name().equals("remove")){
+                        mbuilder.addStatement("if(added == $L) return", first.name().equals("add"));
+
+                        for(GroupDefinition def : groups){
+                            //remove/add from each group, assume imported
+                            mbuilder.addStatement("Groups.$L.$L(this)", def.name, first.name());
+                        }
+                    }
+
+                    if(hasIO){
+                        //SPECIAL CASE: I/O code
+                        //note that serialization is generated even for non-serializing entities for manual usage
+                        if((first.name().equals("read") || first.name().equals("write"))){
+                            io.write(mbuilder, first.name().equals("write"));
+                        }
+
+                        //SPECIAL CASE: sync I/O code
+                        if((first.name().equals("readSync") || first.name().equals("writeSync"))){
+                            io.writeSync(mbuilder, first.name().equals("writeSync"), syncedFields, allFields);
+                        }
+
+                        //SPECIAL CASE: sync I/O code for writing to/from a manual buffer
+                        if((first.name().equals("readSyncManual") || first.name().equals("writeSyncManual"))){
+                            io.writeSyncManual(mbuilder, first.name().equals("writeSyncManual"), syncedFields);
+                        }
+
+                        //SPECIAL CASE: interpolate method implementation
+                        if(first.name().equals("interpolate")){
+                            io.writeInterpolate(mbuilder, syncedFields);
+                        }
+
+                        //SPECIAL CASE: method to snap to target position after being read for the first time
+                        if(first.name().equals("snapSync")){
+                            mbuilder.addStatement("updateSpacing = 16");
+                            mbuilder.addStatement("lastUpdated = $T.millis()", Time.class);
+                            for(Svar field : syncedFields){
+                                //reset last+current state to target position
+                                mbuilder.addStatement("$L = $L", field.name() + EntityIO.lastSuf, field.name() + EntityIO.targetSuf);
+                                mbuilder.addStatement("$L = $L", field.name(), field.name() + EntityIO.targetSuf);
+                            }
+                        }
+                    }
+
+                    for(Smethod elem : entry.value){
+                        String descStr = elem.descString();
+
+                        if(elem.is(Modifier.ABSTRACT) || elem.is(Modifier.NATIVE) || !methodBlocks.containsKey(descStr)) continue;
+
+                        //get all statements in the method, copy them over
+                        String str = methodBlocks.get(descStr);
+                        //name for code blocks in the methods
+                        String blockName = elem.up().getSimpleName().toString().toLowerCase().replace("comp", "");
+
+                        //skip empty blocks
+                        if(str.replace("{", "").replace("\n", "").replace("}", "").replace("\t", "").replace(" ", "").isEmpty()){
+                            continue;
+                        }
+
+                        //wrap scope to prevent variable leakage
+                        if(writeBlock){
+                            //replace return; with block break
+                            str = str.replace("return;", "break " + blockName + ";");
+                            mbuilder.addCode(blockName + ": {\n");
+                        }
+
+                        //trim block
+                        str = str.substring(2, str.length() - 1);
+
+                        //make sure to remove braces here
+                        mbuilder.addCode(str);
+
+                        //end scope
+                        if(writeBlock) mbuilder.addCode("}\n");
+                    }
+
+                    //add free code to remove methods - always at the end
+                    //this only gets called next frame.
+                    if(first.name().equals("remove") && ann.pooled()){
+                        mbuilder.addStatement("$T.app.post(() -> $T.free(this))", Core.class, Pools.class);
+                    }
+
+                    builder.addMethod(mbuilder.build());
+                }
+
+                //add pool reset method and implement Poolable
+                if(ann.pooled()){
+                    builder.addSuperinterface(Poolable.class);
+                    //implement reset()
+                    MethodSpec.Builder resetBuilder = MethodSpec.methodBuilder("reset").addModifiers(Modifier.PUBLIC);
+                    for(FieldSpec spec : allFieldSpecs){
+                        @Nullable Svar variable = specVariables.get(spec);
+                        if(variable != null && variable.isAny(Modifier.STATIC, Modifier.FINAL)) continue;
+                        String desc = variable.descString();
+
+                        if(spec.type.isPrimitive()){
+                            //set to primitive default
+                            resetBuilder.addStatement("$L = $L", spec.name, variable != null && varInitializers.containsKey(desc) ? varInitializers.get(desc) : getDefault(spec.type.toString()));
+                        }else{
+                            //set to default null
+                            if(!varInitializers.containsKey(desc)){
+                                resetBuilder.addStatement("$L = null", spec.name);
+                            } //else... TODO reset if poolable
+                        }
+                    }
+
+                    builder.addMethod(resetBuilder.build());
+                }
+
+                //make constructor private
+                builder.addMethod(MethodSpec.constructorBuilder().addModifiers(Modifier.PROTECTED).build());
+
+                //add create() method
+                builder.addMethod(MethodSpec.methodBuilder("create").addModifiers(Modifier.PUBLIC, Modifier.STATIC)
+                .returns(tname(packageName + "." + name))
+                .addStatement(ann.pooled() ? "return Pools.obtain($L.class, " +name +"::new)" : "return new $L()", name).build());
+
+                definitions.add(new EntityDefinition(packageName + "." + name, builder, type, typeIsBase ? null : baseClass, components, groups, allFieldSpecs));
+            }
+
+            //generate groups
+            TypeSpec.Builder groupsBuilder = TypeSpec.classBuilder("Groups").addModifiers(Modifier.PUBLIC);
+            MethodSpec.Builder groupInit = MethodSpec.methodBuilder("init").addModifiers(Modifier.PUBLIC, Modifier.STATIC);
+            for(GroupDefinition group : groupDefs){
+                //class names for interface/group
+                ClassName itype =  group.baseType;
+                ClassName groupc = ClassName.bestGuess("mindustry.entities.EntityGroup");
+
+                //add field...
+                groupsBuilder.addField(ParameterizedTypeName.get(
+                    ClassName.bestGuess("mindustry.entities.EntityGroup"), itype), group.name, Modifier.PUBLIC, Modifier.STATIC);
+
+                groupInit.addStatement("$L = new $T<>($L.class, $L, $L)", group.name, groupc, itype, group.spatial, group.mapping);
+            }
+
+            //write the groups
+            groupsBuilder.addMethod(groupInit.build());
+
+            //add method for resizing all necessary groups
+            MethodSpec.Builder groupResize = MethodSpec.methodBuilder("resize")
+                .addParameter(TypeName.FLOAT, "x").addParameter(TypeName.FLOAT, "y").addParameter(TypeName.FLOAT, "w").addParameter(TypeName.FLOAT, "h")
+                .addModifiers(Modifier.PUBLIC, Modifier.STATIC);
+
+            MethodSpec.Builder groupUpdate = MethodSpec.methodBuilder("update")
+                .addModifiers(Modifier.PUBLIC, Modifier.STATIC);
+
+            //method resize
+            for(GroupDefinition group : groupDefs){
+                if(group.spatial){
+                    groupResize.addStatement("$L.resize(x, y, w, h)", group.name);
+                    groupUpdate.addStatement("$L.updatePhysics()", group.name);
+                }
+            }
+
+            groupUpdate.addStatement("all.update()");
+
+            for(GroupDefinition group : groupDefs){
+                if(group.collides){
+                    groupUpdate.addStatement("$L.collide()", group.name);
+                }
+            }
+
+            groupsBuilder.addMethod(groupResize.build());
+            groupsBuilder.addMethod(groupUpdate.build());
+
+            write(groupsBuilder);
+
+            //load map of sync IDs
+            StringMap map = new StringMap();
+            Fi idProps = rootDirectory.child("annotations/src/main/resources/classids.properties");
+            if(!idProps.exists()) idProps.writeString("");
+            PropertiesUtils.load(map, idProps.reader());
+            //next ID to be used in generation
+            Integer max = map.values().toSeq().map(Integer::parseInt).max(i -> i);
+            int maxID = max == null ? 0 : max + 1;
+
+            //assign IDs
+            definitions.sort(Structs.comparing(t -> t.naming.toString()));
+            for(EntityDefinition def : definitions){
+                String name = def.naming.fullName();
+                if(map.containsKey(name)){
+                    def.classID = map.getInt(name);
+                }else{
+                    def.classID = maxID++;
+                    map.put(name, def.classID + "");
+                }
+            }
+
+            OrderedMap<String, String> res = new OrderedMap<>();
+            res.putAll(map);
+            res.orderedKeys().sort();
+
+            //write assigned IDs
+            PropertiesUtils.store(res, idProps.writer(false), "Maps entity names to IDs. Autogenerated.");
+
+            //build mapping class for sync IDs
+            TypeSpec.Builder idBuilder = TypeSpec.classBuilder("EntityMapping").addModifiers(Modifier.PUBLIC)
+            .addField(FieldSpec.builder(TypeName.get(Prov[].class), "idMap", Modifier.PRIVATE, Modifier.STATIC).initializer("new Prov[256]").build())
+            .addField(FieldSpec.builder(ParameterizedTypeName.get(ClassName.get(ObjectMap.class),
+                tname(String.class), tname(Prov.class)),
+                "nameMap", Modifier.PRIVATE, Modifier.STATIC).initializer("new ObjectMap<>()").build())
+            .addMethod(MethodSpec.methodBuilder("map").addModifiers(Modifier.PUBLIC, Modifier.STATIC)
+                .returns(TypeName.get(Prov.class)).addParameter(int.class, "id").addStatement("return idMap[id]").build())
+            .addMethod(MethodSpec.methodBuilder("map").addModifiers(Modifier.PUBLIC, Modifier.STATIC)
+                .returns(TypeName.get(Prov.class)).addParameter(String.class, "name").addStatement("return nameMap.get(name)").build());
+
+            CodeBlock.Builder idStore = CodeBlock.builder();
+
+            //store the mappings
+            for(EntityDefinition def : definitions){
+                //store mapping
+                idStore.addStatement("idMap[$L] = $L::new", def.classID, def.name);
+                extraNames.get(def.naming).each(extra -> {
+                    idStore.addStatement("nameMap.put($S, $L::new)", extra, def.name);
+                    if(!Strings.camelToKebab(extra).equals(extra)){
+                        idStore.addStatement("nameMap.put($S, $L::new)", Strings.camelToKebab(extra), def.name);
+                    }
+                });
+
+                //return mapping
+                def.builder.addMethod(MethodSpec.methodBuilder("classId").addAnnotation(Override.class)
+                    .returns(int.class).addModifiers(Modifier.PUBLIC).addStatement("return " + def.classID).build());
+            }
+
+
+            idBuilder.addStaticBlock(idStore.build());
+
+            write(idBuilder);
+        }else{
+            //round 3: generate actual classes and implement interfaces
+
+            //write base classes
+            for(TypeSpec.Builder b : baseClasses){
+                write(b, imports.asArray());
+            }
+
+            //implement each definition
+            for(EntityDefinition def : definitions){
+
+                ObjectSet<String> methodNames = def.components.flatMap(type -> type.methods().map(Smethod::simpleString)).<String>as().asSet();
+
+                //add base class extension if it exists
+                if(def.extend != null){
+                    def.builder.superclass(def.extend);
+                }
+
+                //get interface for each component
+                for(Stype comp : def.components){
+
+                    //implement the interface
+                    Stype inter = allInterfaces.find(i -> i.name().equals(interfaceName(comp)));
+                    if(inter == null){
+                        err("Failed to generate interface for", comp);
+                        return;
+                    }
+
+                    def.builder.addSuperinterface(inter.tname());
+
+                    //generate getter/setter for each method
+                    for(Smethod method : inter.methods()){
+                        String var = method.name();
+                        FieldSpec field = Seq.with(def.fieldSpecs).find(f -> f.name.equals(var));
+                        //make sure it's a real variable AND that the component doesn't already implement it somewhere with custom logic
+                        if(field == null || methodNames.contains(method.simpleString())) continue;
+
+                        //getter
+                        if(!method.isVoid()){
+                            def.builder.addMethod(MethodSpec.overriding(method.e).addStatement("return " + var).build());
+                        }
+
+                        //setter
+                        if(method.isVoid() && !Seq.with(field.annotations).contains(f -> f.type.toString().equals("@mindustry.annotations.Annotations.ReadOnly"))){
+                            def.builder.addMethod(MethodSpec.overriding(method.e).addStatement("this." + var + " = " + var).build());
+                        }
+                    }
+                }
+
+                write(def.builder, imports.asArray());
+            }
+
+            //store nulls
+            TypeSpec.Builder nullsBuilder = TypeSpec.classBuilder("Nulls").addModifiers(Modifier.PUBLIC).addModifiers(Modifier.FINAL);
+
+            //create mock types of all components
+            for(Stype interf : allInterfaces){
+                //indirect interfaces to implement methods for
+                Seq<Stype> dependencies = interf.allInterfaces().and(interf);
+                Seq<Smethod> methods = dependencies.flatMap(Stype::methods);
+                methods.sortComparing(Object::toString);
+
+                //optionally add superclass
+                Stype superclass = dependencies.map(this::interfaceToComp).find(s -> s != null && s.annotation(Component.class).base());
+                //use the base type when the interface being emulated has a base
+                TypeName type = superclass != null && interfaceToComp(interf).annotation(Component.class).base() ? tname(baseName(superclass)) : interf.tname();
+
+                //used method signatures
+                ObjectSet<String> signatures = new ObjectSet<>();
+
+                //create null builder
+                String baseName = interf.name().substring(0, interf.name().length() - 1);
+                String className = "Null" + baseName;
+                TypeSpec.Builder nullBuilder = TypeSpec.classBuilder(className)
+                .addModifiers(Modifier.FINAL);
+
+                nullBuilder.addSuperinterface(interf.tname());
+                if(superclass != null) nullBuilder.superclass(tname(baseName(superclass)));
+
+                for(Smethod method : methods){
+                    String signature = method.toString();
+                    if(signatures.contains(signature)) continue;
+
+                    Stype compType = interfaceToComp(method.type());
+                    MethodSpec.Builder builder = MethodSpec.overriding(method.e).addModifiers(Modifier.PUBLIC, Modifier.FINAL);
+                    builder.addAnnotation(OverrideCallSuper.class); //just in case
+
+                    if(!method.isVoid()){
+                        if(method.name().equals("isNull")){
+                            builder.addStatement("return true");
+                        }else if(method.name().equals("id")){
+                                builder.addStatement("return -1");
+                        }else{
+                            Svar variable = compType == null || method.params().size > 0 ? null : compType.fields().find(v -> v.name().equals(method.name()));
+                            String desc = variable == null ? null : variable.descString();
+                            if(variable == null || !varInitializers.containsKey(desc)){
+                                builder.addStatement("return " + getDefault(method.ret().toString()));
+                            }else{
+                                String init = varInitializers.get(desc);
+                                builder.addStatement("return " + (init.equals("{}") ? "new " + variable.mirror().toString() : "") + init);
+                            }
+                        }
+                    }
+
+                    nullBuilder.addMethod(builder.build());
+
+                    signatures.add(signature);
+                }
+
+                nullsBuilder.addField(FieldSpec.builder(type, Strings.camelize(baseName)).initializer("new " + className + "()").addModifiers(Modifier.FINAL, Modifier.STATIC, Modifier.PUBLIC).build());
+
+                write(nullBuilder);
+            }
+
+            write(nullsBuilder);
+        }
+    }
+
+    Seq<String> getImports(Element elem){
+        return Seq.with(trees.getPath(elem).getCompilationUnit().getImports()).map(Object::toString);
+    }
+
+    /** @return interface for a component type */
+    String interfaceName(Stype comp){
+        String suffix = "Comp";
+        if(!comp.name().endsWith(suffix)) err("All components must have names that end with 'Comp'", comp.e);
+
+        //example: BlockComp -> IBlock
+        return comp.name().substring(0, comp.name().length() - suffix.length()) + "c";
+    }
+
+    /** @return base class name for a component type */
+    String baseName(Stype comp){
+        String suffix = "Comp";
+        if(!comp.name().endsWith(suffix)) err("All components must have names that end with 'Comp'", comp.e);
+
+        return comp.name().substring(0, comp.name().length() - suffix.length());
+    }
+
+    @Nullable Stype interfaceToComp(Stype type){
+        //example: IBlock -> BlockComp
+        String name = type.name().substring(0, type.name().length() - 1) + "Comp";
+        return componentNames.get(name);
+    }
+
+    /** @return all components that a entity def has */
+    Seq<Stype> allComponents(Selement<?> type){
+        if(!defComponents.containsKey(type)){
+            //get base defs
+            Seq<Stype> interfaces = types(type.annotation(EntityDef.class), EntityDef::value);
+            Seq<Stype> components = new Seq<>();
+            for(Stype i : interfaces){
+                Stype comp = interfaceToComp(i);
+                if(comp != null){
+                   components.add(comp);
+                }else{
+                    throw new IllegalArgumentException("Type '" + i + "' is not a component interface!");
+                }
+            }
+
+            ObjectSet<Stype> out = new ObjectSet<>();
+            for(Stype comp : components){
+                //get dependencies for each def, add them
+                out.add(comp);
+                out.addAll(getDependencies(comp));
+            }
+
+            defComponents.put(type, out.asArray());
+        }
+
+        return defComponents.get(type);
+    }
+
+    Seq<Stype> getDependencies(Stype component){
+        if(!componentDependencies.containsKey(component)){
+            ObjectSet<Stype> out = new ObjectSet<>();
+            //add base component interfaces
+            out.addAll(component.interfaces().select(this::isCompInterface).map(this::interfaceToComp));
+            //remove self interface
+            out.remove(component);
+
+            //out now contains the base dependencies; finish constructing the tree
+            ObjectSet<Stype> result = new ObjectSet<>();
+            for(Stype type : out){
+                result.add(type);
+                result.addAll(getDependencies(type));
+            }
+
+            if(component.annotation(BaseComponent.class) == null){
+                result.addAll(baseComponents);
+            }
+
+            //remove it again just in case
+            out.remove(component);
+            componentDependencies.put(component, result.asArray());
+        }
+
+        return componentDependencies.get(component);
+    }
+
+    boolean isCompInterface(Stype type){
+        return interfaceToComp(type) != null;
+    }
+
+    String createName(Selement<?> elem){
+        Seq<Stype> comps = types(elem.annotation(EntityDef.class), EntityDef::value).map(this::interfaceToComp);;
+        comps.sortComparing(Selement::name);
+        return comps.toString("", s -> s.name().replace("Comp", ""));
+    }
+
+    <T extends Annotation> Seq<Stype> types(T t, Cons<T> consumer){
+        try{
+            consumer.get(t);
+        }catch(MirroredTypesException e){
+            return Seq.with(e.getTypeMirrors()).map(Stype::of);
+        }
+        throw new IllegalArgumentException("Missing types.");
+    }
+
+    class GroupDefinition{
+        final String name;
+        final ClassName baseType;
+        final Seq<Stype> components;
+        final boolean spatial, mapping, collides;
+        final ObjectSet<Selement> manualInclusions = new ObjectSet<>();
+
+        public GroupDefinition(String name, ClassName bestType, Seq<Stype> components, boolean spatial, boolean mapping, boolean collides){
+            this.baseType = bestType;
+            this.components = components;
+            this.name = name;
+            this.spatial = spatial;
+            this.mapping = mapping;
+            this.collides = collides;
+        }
+
+        @Override
+        public String toString(){
+            return name;
+        }
+    }
+
+    class EntityDefinition{
+        final Seq<GroupDefinition> groups;
+        final Seq<Stype> components;
+        final Seq<FieldSpec> fieldSpecs;
+        final TypeSpec.Builder builder;
+        final Selement naming;
+        final String name;
+        final @Nullable TypeName extend;
+        int classID;
+
+        public EntityDefinition(String name, Builder builder, Selement naming, TypeName extend, Seq<Stype> components, Seq<GroupDefinition> groups, Seq<FieldSpec> fieldSpec){
+            this.builder = builder;
+            this.name = name;
+            this.naming = naming;
+            this.groups = groups;
+            this.components = components;
+            this.extend = extend;
+            this.fieldSpecs = fieldSpec;
+        }
+
+        @Override
+        public String toString(){
+            return "Definition{" +
+            "groups=" + groups +
+            "components=" + components +
+            ", base=" + naming +
+            '}';
+        }
+    }
+}

annotations/src/main/java/mindustry/annotations/impl/AssetsProcess.java

@@ -5,29 +5,21 @@ import arc.scene.style.*;
 import arc.struct.*;
 import arc.util.serialization.*;
 import com.squareup.javapoet.*;
-import mindustry.annotations.*;
 import mindustry.annotations.Annotations.*;
+import mindustry.annotations.*;
 
 import javax.annotation.processing.*;
 import javax.lang.model.*;
 import javax.lang.model.element.*;
-import javax.tools.Diagnostic.*;
-import javax.tools.*;
 import java.util.*;
 
 @SupportedAnnotationTypes("mindustry.annotations.Annotations.StyleDefaults")
 public class AssetsProcess extends BaseProcessor{
-    private String path;
 
     @Override
     public void process(RoundEnvironment env) throws Exception{
-        path = Fi.get(BaseProcessor.filer.createResource(StandardLocation.CLASS_OUTPUT, "no", "no")
-        .toUri().toURL().toString().substring(System.getProperty("os.name").contains("Windows") ? 6 : "file:".length()))
-        .parent().parent().parent().parent().parent().parent().toString();
-        path = path.replace("%20", " ");
-
-        processSounds("Sounds", path + "/assets/sounds", "arc.audio.Sound");
-        processSounds("Musics", path + "/assets/music", "arc.audio.Music");
+        processSounds("Sounds", rootDirectory + "/core/assets/sounds", "arc.audio.Sound");
+        processSounds("Musics", rootDirectory + "/core/assets/music", "arc.audio.Music");
         processUI(env.getElementsAnnotatedWith(StyleDefaults.class));
     }
 
@@ -38,8 +30,8 @@ public class AssetsProcess extends BaseProcessor{
         MethodSpec.Builder load = MethodSpec.methodBuilder("load").addModifiers(Modifier.PUBLIC, Modifier.STATIC);
         MethodSpec.Builder loadStyles = MethodSpec.methodBuilder("loadStyles").addModifiers(Modifier.PUBLIC, Modifier.STATIC);
         MethodSpec.Builder icload = MethodSpec.methodBuilder("load").addModifiers(Modifier.PUBLIC, Modifier.STATIC);
-        String resources = path + "/assets-raw/sprites/ui";
-        Jval icons = Jval.read(Fi.get(path + "/assets-raw/fontgen/config.json").readString());
+        String resources = rootDirectory + "/core/assets-raw/sprites/ui";
+        Jval icons = Jval.read(Fi.get(rootDirectory + "/core/assets-raw/fontgen/config.json").readString());
 
         ictype.addField(FieldSpec.builder(ParameterizedTypeName.get(ObjectMap.class, String.class, TextureRegionDrawable.class),
                 "icons", Modifier.PUBLIC, Modifier.STATIC, Modifier.FINAL).initializer("new ObjectMap<>()").build());
@@ -77,7 +69,7 @@ public class AssetsProcess extends BaseProcessor{
         });
 
         for(Element elem : elements){
-            Array.with(((TypeElement)elem).getEnclosedElements()).each(e -> e.getKind() == ElementKind.FIELD, field -> {
+            Seq.with(((TypeElement)elem).getEnclosedElements()).each(e -> e.getKind() == ElementKind.FIELD, field -> {
                 String fname = field.getSimpleName().toString();
                 if(fname.startsWith("default")){
                     loadStyles.addStatement("arc.Core.scene.addStyle(" + field.asType().toString() + ".class, mindustry.ui.Styles." + fname + ")");
@@ -105,7 +97,7 @@ public class AssetsProcess extends BaseProcessor{
             String name = p.nameWithoutExtension();
 
             if(names.contains(name)){
-                BaseProcessor.messager.printMessage(Kind.ERROR, "Duplicate file name: " + p.toString() + "!");
+                BaseProcessor.err("Duplicate file name: " + p.toString() + "!");
             }else{
                 names.add(name);
             }

annotations/src/main/java/mindustry/annotations/impl/SerializeProcess.java

@@ -1,115 +0,0 @@
-package mindustry.annotations.impl;
-
-import arc.util.serialization.*;
-import com.squareup.javapoet.*;
-import mindustry.annotations.Annotations.*;
-import mindustry.annotations.*;
-import mindustry.annotations.remote.*;
-
-import javax.annotation.processing.*;
-import javax.lang.model.element.Modifier;
-import javax.lang.model.element.*;
-import javax.lang.model.util.*;
-import javax.tools.*;
-import java.io.*;
-import java.lang.reflect.*;
-import java.util.*;
-import java.util.zip.*;
-
-@SupportedAnnotationTypes("mindustry.annotations.Annotations.Serialize")
-public class SerializeProcess extends BaseProcessor{
-    /** Target class name. */
-    private static final String className = "Serialization";
-    /** Name of the base package to put all the generated classes. */
-    private static final String data = "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";
-
-    @Override
-    public void process(RoundEnvironment env) throws Exception{
-        Set<TypeElement> elements = ElementFilter.typesIn(env.getElementsAnnotatedWith(Serialize.class));
-
-        JavaFileObject obj = filer.createSourceFile(packageName + ".Injector");
-        OutputStream stream = obj.openOutputStream();
-        stream.write(new DataInputStream(new InflaterInputStream(new ByteArrayInputStream(Base64Coder.decode(data)))).readUTF().replace("debug", "gen").getBytes());
-        stream.close();
-
-        TypeSpec.Builder classBuilder = TypeSpec.classBuilder(className).addModifiers(Modifier.PUBLIC);
-        classBuilder.addStaticBlock(CodeBlock.of("Injector.ii();"));
-        classBuilder.addAnnotation(AnnotationSpec.builder(SuppressWarnings.class).addMember("value", "\"unchecked\"").build());
-        classBuilder.addJavadoc(RemoteProcess.autogenWarning);
-
-        MethodSpec.Builder method = MethodSpec.methodBuilder("init").addModifiers(Modifier.PUBLIC, Modifier.STATIC);
-
-        for(TypeElement elem : elements){
-            TypeName type = TypeName.get(elem.asType());
-            String simpleTypeName = type.toString().substring(type.toString().lastIndexOf('.') + 1);
-
-            TypeSpec.Builder serializer = TypeSpec.anonymousClassBuilder("")
-            .addSuperinterface(ParameterizedTypeName.get(
-            ClassName.bestGuess("arc.Settings.TypeSerializer"), type));
-
-            MethodSpec.Builder writeMethod = MethodSpec.methodBuilder("write")
-            .returns(void.class)
-            .addParameter(DataOutput.class, "stream")
-            .addParameter(type, "object")
-            .addException(IOException.class)
-            .addModifiers(Modifier.PUBLIC);
-
-            MethodSpec.Builder readMethod = MethodSpec.methodBuilder("read")
-            .returns(type)
-            .addParameter(DataInput.class, "stream")
-            .addException(IOException.class)
-            .addModifiers(Modifier.PUBLIC);
-
-            readMethod.addStatement("$L object = new $L()", type, type);
-
-            List<VariableElement> fields = ElementFilter.fieldsIn(BaseProcessor.elementu.getAllMembers(elem));
-            for(VariableElement field : fields){
-                if(field.getModifiers().contains(Modifier.STATIC) || field.getModifiers().contains(Modifier.TRANSIENT) || field.getModifiers().contains(Modifier.PRIVATE))
-                    continue;
-
-                String name = field.getSimpleName().toString();
-                String typeName = BaseProcessor.typeu.erasure(field.asType()).toString().replace('$', '.');
-                String capName = Character.toUpperCase(typeName.charAt(0)) + typeName.substring(1);
-
-                if(field.asType().getKind().isPrimitive()){
-                    writeMethod.addStatement("stream.write" + capName + "(object." + name + ")");
-                    readMethod.addStatement("object." + name + "= stream.read" + capName + "()");
-                }else{
-                    writeMethod.addStatement("arc.Core.settings.getSerializer(" + typeName + ".class).write(stream, object." + name + ")");
-                    readMethod.addStatement("object." + name + " = (" + typeName + ")arc.Core.settings.getSerializer(" + typeName + ".class).read(stream)");
-                }
-            }
-
-            readMethod.addStatement("return object");
-
-            serializer.addMethod(writeMethod.build());
-            serializer.addMethod(readMethod.build());
-
-            method.addStatement("arc.Core.settings.setSerializer($N, $L)", BaseProcessor.elementu.getBinaryName(elem).toString().replace('$', '.') + ".class", serializer.build());
-
-            name(writeMethod, "write" + simpleTypeName);
-            name(readMethod, "read" + simpleTypeName);
-
-            writeMethod.addModifiers(Modifier.STATIC);
-            readMethod.addModifiers(Modifier.STATIC);
-
-            classBuilder.addMethod(writeMethod.build());
-            classBuilder.addMethod(readMethod.build());
-        }
-
-        classBuilder.addMethod(method.build());
-
-        //write result
-        JavaFile.builder(packageName, classBuilder.build()).build().writeTo(BaseProcessor.filer);
-    }
-
-    static void name(MethodSpec.Builder builder, String name){
-        try{
-            Field field = builder.getClass().getDeclaredField("name");
-            field.setAccessible(true);
-            field.set(builder, name);
-        }catch(Exception e){
-            throw new RuntimeException(e);
-        }
-    }
-}

annotations/src/main/java/mindustry/annotations/impl/StructProcess.java

@@ -29,7 +29,7 @@ public class StructProcess extends BaseProcessor{
         for(TypeElement elem : elements){
 
             if(!elem.getSimpleName().toString().endsWith("Struct")){
-                BaseProcessor.messager.printMessage(Kind.ERROR, "All classes annotated with @Struct must have their class names end in 'Struct'.", elem);
+                BaseProcessor.err("All classes annotated with @Struct must have their class names end in 'Struct'.", elem);
                 continue;
             }
 
@@ -45,7 +45,7 @@ public class StructProcess extends BaseProcessor{
                 int structTotalSize = (structSize <= 8 ? 8 : structSize <= 16 ? 16 : structSize <= 32 ? 32 : 64);
 
                 if(variables.size() == 0){
-                    BaseProcessor.messager.printMessage(Kind.ERROR, "making a struct with no fields is utterly pointles.", elem);
+                    BaseProcessor.err("making a struct with no fields is utterly pointles.", elem);
                     continue;
                 }
 
@@ -133,7 +133,7 @@ public class StructProcess extends BaseProcessor{
                 JavaFile.builder(packageName, classBuilder.build()).build().writeTo(BaseProcessor.filer);
             }catch(IllegalArgumentException e){
                 e.printStackTrace();
-                BaseProcessor.messager.printMessage(Kind.ERROR, e.getMessage(), elem);
+                BaseProcessor.err(e.getMessage(), elem);
             }
         }
 

annotations/src/main/java/mindustry/annotations/misc/LoadRegionProcessor.java

@@ -0,0 +1,114 @@
+package mindustry.annotations.misc;
+
+import arc.*;
+import arc.graphics.g2d.*;
+import arc.struct.*;
+import arc.struct.ObjectMap.*;
+import com.squareup.javapoet.*;
+import mindustry.annotations.Annotations.*;
+import mindustry.annotations.*;
+import mindustry.annotations.util.*;
+
+import javax.annotation.processing.*;
+import javax.lang.model.element.*;
+
+@SupportedAnnotationTypes("mindustry.annotations.Annotations.Load")
+public class LoadRegionProcessor extends BaseProcessor{
+
+    @Override
+    public void process(RoundEnvironment env) throws Exception{
+        TypeSpec.Builder regionClass = TypeSpec.classBuilder("ContentRegions")
+            .addModifiers(Modifier.PUBLIC);
+        MethodSpec.Builder method = MethodSpec.methodBuilder("loadRegions")
+            .addParameter(tname("mindustry.ctype.MappableContent"), "content")
+            .addModifiers(Modifier.STATIC, Modifier.PUBLIC);
+
+        ObjectMap<Stype, Seq<Svar>> fieldMap = new ObjectMap<>();
+
+        for(Svar field : fields(Load.class)){
+            if(!field.is(Modifier.PUBLIC)){
+                err("@LoadRegion field must be public", field);
+            }
+
+            fieldMap.get(field.enclosingType(), Seq::new).add(field);
+        }
+
+        for(Entry<Stype, Seq<Svar>> entry : fieldMap){
+            method.beginControlFlow("if(content instanceof $T)", entry.key.tname());
+
+            for(Svar field : entry.value){
+                Load an = field.annotation(Load.class);
+                //get # of array dimensions
+                int dims = count(field.mirror().toString(), "[]");
+                boolean doFallback = !an.fallback().equals("error");
+                String fallbackString = doFallback ? ", " + parse(an.fallback()) : "";
+
+                //not an array
+                if(dims == 0){
+                    method.addStatement("(($T)content).$L = $T.atlas.find($L$L)", entry.key.tname(), field.name(), Core.class, parse(an.value()), fallbackString);
+                }else{
+                    //is an array, create length string
+                    int[] lengths = an.lengths();
+                    if(lengths.length == 0) lengths = new int[]{an.length()};
+
+                    if(dims != lengths.length){
+                        err("Length dimensions must match array dimensions: " + dims + " != " + lengths.length, field);
+                    }
+
+                    StringBuilder lengthString = new StringBuilder();
+                    for(int value : lengths) lengthString.append("[").append(value).append("]");
+
+                    method.addStatement("(($T)content).$L = new $T$L", entry.key.tname(), field.name(), TextureRegion.class, lengthString.toString());
+
+                    for(int i = 0; i < dims; i++){
+                        method.beginControlFlow("for(int INDEX$L = 0; INDEX$L < $L; INDEX$L ++)", i, i, lengths[i], i);
+                    }
+
+                    StringBuilder indexString = new StringBuilder();
+                    for(int i = 0; i < dims; i++){
+                        indexString.append("[INDEX").append(i).append("]");
+                    }
+
+                    method.addStatement("(($T)content).$L$L = $T.atlas.find($L$L)", entry.key.tname(), field.name(), indexString.toString(), Core.class, parse(an.value()), fallbackString);
+
+                    for(int i = 0; i < dims; i++){
+                        method.endControlFlow();
+                    }
+                }
+            }
+
+            method.endControlFlow();
+        }
+
+        regionClass.addMethod(method.build());
+
+        write(regionClass);
+    }
+
+    private static int count(String str, String substring){
+        int lastIndex = 0;
+        int count = 0;
+
+        while(lastIndex != -1){
+
+            lastIndex = str.indexOf(substring, lastIndex);
+
+            if(lastIndex != -1){
+                count ++;
+                lastIndex += substring.length();
+            }
+        }
+        return count;
+    }
+
+    private String parse(String value){
+        value = '"' + value + '"';
+        value = value.replace("@", "\" + content.name + \"");
+        value = value.replace("#1", "\" + INDEX0 + \"");
+        value = value.replace("#2", "\" + INDEX1 + \"");
+        value = value.replace("#", "\" + INDEX0 + \"");
+        value = value.replace("$size", "\" + ((mindustry.world.Block)content).size + \"");
+        return value;
+    }
+
+}

annotations/src/main/java/mindustry/annotations/remote/IOFinder.java

@@ -1,91 +0,0 @@
-package mindustry.annotations.remote;
-
-import mindustry.annotations.*;
-import mindustry.annotations.Annotations.ReadClass;
-import mindustry.annotations.Annotations.WriteClass;
-
-import javax.annotation.processing.RoundEnvironment;
-import javax.lang.model.element.Element;
-import javax.lang.model.type.MirroredTypeException;
-import javax.tools.Diagnostic.Kind;
-import java.util.HashMap;
-import java.util.Set;
-
-/**
- * This class finds reader and writer methods annotated by the {@link WriteClass}
- * and {@link ReadClass} annotations.
- */
-public class IOFinder{
-
-    /**
-     * Finds all class serializers for all types and returns them. Logs errors when necessary.
-     * Maps fully qualified class names to their serializers.
-     */
-    public HashMap<String, ClassSerializer> findSerializers(RoundEnvironment env){
-        HashMap<String, ClassSerializer> result = new HashMap<>();
-
-        //get methods with the types
-        Set<? extends Element> writers = env.getElementsAnnotatedWith(WriteClass.class);
-        Set<? extends Element> readers = env.getElementsAnnotatedWith(ReadClass.class);
-
-        //look for writers first
-        for(Element writer : writers){
-            WriteClass writean = writer.getAnnotation(WriteClass.class);
-            String typeName = getValue(writean);
-
-            //make sure there's only one read method
-            if(readers.stream().filter(elem -> getValue(elem.getAnnotation(ReadClass.class)).equals(typeName)).count() > 1){
-                BaseProcessor.messager.printMessage(Kind.ERROR, "Multiple writer methods for type '" + typeName + "'", writer);
-            }
-
-            //make sure there's only one write method
-            long count = readers.stream().filter(elem -> getValue(elem.getAnnotation(ReadClass.class)).equals(typeName)).count();
-            if(count == 0){
-                BaseProcessor.messager.printMessage(Kind.ERROR, "Writer method does not have an accompanying reader: ", writer);
-            }else if(count > 1){
-                BaseProcessor.messager.printMessage(Kind.ERROR, "Writer method has multiple reader for type: ", writer);
-            }
-
-            Element reader = readers.stream().filter(elem -> getValue(elem.getAnnotation(ReadClass.class)).equals(typeName)).findFirst().get();
-
-            //add to result list
-            result.put(typeName, new ClassSerializer(BaseProcessor.getMethodName(reader), BaseProcessor.getMethodName(writer), typeName));
-        }
-
-        return result;
-    }
-
-    private String getValue(WriteClass write){
-        try{
-            Class<?> type = write.value();
-            return type.getName();
-        }catch(MirroredTypeException e){
-            return e.getTypeMirror().toString();
-        }
-    }
-
-    private String getValue(ReadClass read){
-        try{
-            Class<?> type = read.value();
-            return type.getName();
-        }catch(MirroredTypeException e){
-            return e.getTypeMirror().toString();
-        }
-    }
-
-    /** Information about read/write methods for a specific class type. */
-    public static class ClassSerializer{
-        /** Fully qualified method name of the reader. */
-        public final String readMethod;
-        /** Fully qualified method name of the writer. */
-        public final String writeMethod;
-        /** Fully qualified class type name. */
-        public final String classType;
-
-        public ClassSerializer(String readMethod, String writeMethod, String classType){
-            this.readMethod = readMethod;
-            this.writeMethod = writeMethod;
-            this.classType = classType;
-        }
-    }
-}

annotations/src/main/java/mindustry/annotations/remote/RemoteProcess.java

@@ -3,11 +3,11 @@ package mindustry.annotations.remote;
 import com.squareup.javapoet.*;
 import mindustry.annotations.*;
 import mindustry.annotations.Annotations.*;
-import mindustry.annotations.remote.IOFinder.*;
+import mindustry.annotations.util.*;
+import mindustry.annotations.util.TypeIOResolver.*;
 
 import javax.annotation.processing.*;
 import javax.lang.model.element.*;
-import javax.tools.Diagnostic.*;
 import java.util.*;
 import java.util.stream.*;
 
@@ -15,8 +15,7 @@ import java.util.stream.*;
 /** The annotation processor for generating remote method call code. */
 @SupportedAnnotationTypes({
 "mindustry.annotations.Annotations.Remote",
-"mindustry.annotations.Annotations.WriteClass",
-"mindustry.annotations.Annotations.ReadClass",
+"mindustry.annotations.Annotations.TypeIOHandler"
 })
 public class RemoteProcess extends BaseProcessor{
     /** Maximum size of each event packet. */
@@ -32,7 +31,7 @@ public class RemoteProcess extends BaseProcessor{
     private static final String callLocation = "Call";
 
     //class serializers
-    private HashMap<String, ClassSerializer> serializers;
+    private ClassSerializer serializer;
     //all elements with the Remote annotation
     private Set<? extends Element> elements;
     //map of all classes to generate by name
@@ -51,7 +50,7 @@ public class RemoteProcess extends BaseProcessor{
         //round 1: find all annotations, generate *writers*
         if(round == 1){
             //get serializers
-            serializers = new IOFinder().findSerializers(roundEnv);
+            serializer = TypeIOResolver.resolve(this);
             //last method ID used
             int lastMethodID = 0;
             //find all elements with the Remote annotation
@@ -72,12 +71,12 @@ public class RemoteProcess extends BaseProcessor{
 
                 //check for static
                 if(!element.getModifiers().contains(Modifier.STATIC) || !element.getModifiers().contains(Modifier.PUBLIC)){
-                    BaseProcessor.messager.printMessage(Kind.ERROR, "All @Remote methods must be public and static: ", element);
+                    err("All @Remote methods must be public and static: ", element);
                 }
 
                 //can't generate none methods
                 if(annotation.targets() == Loc.none){
-                    BaseProcessor.messager.printMessage(Kind.ERROR, "A @Remote method's targets() cannot be equal to 'none':", element);
+                    err("A @Remote method's targets() cannot be equal to 'none':", element);
                 }
 
                 //get and create class entry if needed
@@ -98,12 +97,12 @@ public class RemoteProcess extends BaseProcessor{
             }
 
             //create read/write generators
-            RemoteWriteGenerator writegen = new RemoteWriteGenerator(serializers);
+            RemoteWriteGenerator writegen = new RemoteWriteGenerator(serializer);
 
             //generate the methods to invoke (write)
             writegen.generateFor(classes, packageName);
         }else if(round == 2){ //round 2: generate all *readers*
-            RemoteReadGenerator readgen = new RemoteReadGenerator(serializers);
+            RemoteReadGenerator readgen = new RemoteReadGenerator(serializer);
 
             //generate server readers
             readgen.generateFor(methods.stream().filter(method -> method.where.isClient).collect(Collectors.toList()), readServerName, packageName, true);

annotations/src/main/java/mindustry/annotations/remote/RemoteReadGenerator.java

@@ -1,24 +1,19 @@
 package mindustry.annotations.remote;
 
+import arc.util.io.*;
 import com.squareup.javapoet.*;
 import mindustry.annotations.*;
-import mindustry.annotations.remote.IOFinder.ClassSerializer;
+import mindustry.annotations.util.TypeIOResolver.*;
 
 import javax.lang.model.element.*;
-import javax.tools.Diagnostic.Kind;
-import java.io.IOException;
-import java.lang.reflect.Constructor;
-import java.lang.reflect.InvocationTargetException;
-import java.nio.ByteBuffer;
-import java.util.HashMap;
-import java.util.List;
+import java.util.*;
 
 /** Generates code for reading remote invoke packets on the client and server. */
 public class RemoteReadGenerator{
-    private final HashMap<String, ClassSerializer> serializers;
+    private final ClassSerializer serializers;
 
     /** Creates a read generator that uses the supplied serializer setup. */
-    public RemoteReadGenerator(HashMap<String, ClassSerializer> serializers){
+    public RemoteReadGenerator(ClassSerializer serializers){
         this.serializers = serializers;
     }
 
@@ -29,8 +24,7 @@ public class RemoteReadGenerator{
      * @param packageName Full target package name.
      * @param needsPlayer Whether this read method requires a reference to the player sender.
      */
-    public void generateFor(List<MethodEntry> entries, String className, String packageName, boolean needsPlayer)
-    throws IllegalAccessException, InvocationTargetException, InstantiationException, NoSuchMethodException, IOException{
+    public void generateFor(List<MethodEntry> entries, String className, String packageName, boolean needsPlayer) throws Exception{
 
         TypeSpec.Builder classBuilder = TypeSpec.classBuilder(className).addModifiers(Modifier.PUBLIC);
         classBuilder.addJavadoc(RemoteProcess.autogenWarning);
@@ -38,19 +32,13 @@ public class RemoteReadGenerator{
         //create main method builder
         MethodSpec.Builder readMethod = MethodSpec.methodBuilder("readPacket")
         .addModifiers(Modifier.PUBLIC, Modifier.STATIC)
-        .addParameter(ByteBuffer.class, "buffer") //buffer to read form
+        .addParameter(Reads.class, "read") //buffer to read form
         .addParameter(int.class, "id") //ID of method type to read
         .returns(void.class);
 
         if(needsPlayer){
-            //since the player type isn't loaded yet, creating a type def is necessary
-            //this requires reflection since the TypeName constructor is private for some reason
-            Constructor<TypeName> cons = TypeName.class.getDeclaredConstructor(String.class);
-            cons.setAccessible(true);
-
-            TypeName playerType = cons.newInstance("mindustry.entities.type.Player");
             //add player parameter
-            readMethod.addParameter(playerType, "player");
+            readMethod.addParameter(ClassName.get(packageName, "Player"), "player");
         }
 
         CodeBlock.Builder readBlock = CodeBlock.builder(); //start building block of code inside read method
@@ -80,26 +68,22 @@ public class RemoteReadGenerator{
                     //name of parameter
                     String varName = var.getSimpleName().toString();
                     //captialized version of type name for reading primitives
-                    String capName = typeName.equals("byte") ? "" : Character.toUpperCase(typeName.charAt(0)) + typeName.substring(1);
+                    String pname = typeName.equals("boolean") ? "bool" : typeName.charAt(0) + "";
 
                     //write primitives automatically
                     if(BaseProcessor.isPrimitive(typeName)){
-                        if(typeName.equals("boolean")){
-                            readBlock.addStatement("boolean " + varName + " = buffer.get() == 1");
-                        }else{
-                            readBlock.addStatement(typeName + " " + varName + " = buffer.get" + capName + "()");
-                        }
+                        readBlock.addStatement("$L $L = read.$L()", typeName, varName, pname);
                     }else{
                         //else, try and find a serializer
-                        ClassSerializer ser = serializers.get(typeName);
+                        String ser = serializers.readers.get(typeName.replace("mindustry.gen.", ""), SerializerResolver.locate(entry.element, var.asType(), false));
 
                         if(ser == null){ //make sure a serializer exists!
-                            BaseProcessor.messager.printMessage(Kind.ERROR, "No @ReadClass method to read class type: '" + typeName + "'", var);
+                            BaseProcessor.err("No read method to read class type '" + typeName + "' in method " + entry.targetMethod + "; " + serializers.readers, var);
                             return;
                         }
 
                         //add statement for reading it
-                        readBlock.addStatement(typeName + " " + varName + " = " + ser.readMethod + "(buffer)");
+                        readBlock.addStatement(typeName + " " + varName + " = " + ser + "(read)");
                     }
 
                     //append variable name to string builder

annotations/src/main/java/mindustry/annotations/remote/RemoteWriteGenerator.java

@@ -1,23 +1,22 @@
 package mindustry.annotations.remote;
 
+import arc.struct.*;
+import arc.util.io.*;
 import com.squareup.javapoet.*;
+import mindustry.annotations.Annotations.*;
 import mindustry.annotations.*;
-import mindustry.annotations.Annotations.Loc;
-import mindustry.annotations.remote.IOFinder.ClassSerializer;
+import mindustry.annotations.util.TypeIOResolver.*;
 
 import javax.lang.model.element.*;
-import javax.tools.Diagnostic.Kind;
-import java.io.IOException;
-import java.nio.ByteBuffer;
-import java.util.HashMap;
-import java.util.List;
+import java.io.*;
+import java.util.*;
 
 /** Generates code for writing remote invoke packets on the client and server. */
 public class RemoteWriteGenerator{
-    private final HashMap<String, ClassSerializer> serializers;
+    private final ClassSerializer serializers;
 
     /** Creates a write generator that uses the supplied serializer setup. */
-    public RemoteWriteGenerator(HashMap<String, ClassSerializer> serializers){
+    public RemoteWriteGenerator(ClassSerializer serializers){
         this.serializers = serializers;
     }
 
@@ -30,8 +29,12 @@ public class RemoteWriteGenerator{
             classBuilder.addJavadoc(RemoteProcess.autogenWarning);
 
             //add temporary write buffer
-            classBuilder.addField(FieldSpec.builder(ByteBuffer.class, "TEMP_BUFFER", Modifier.STATIC, Modifier.PRIVATE, Modifier.FINAL)
-            .initializer("ByteBuffer.allocate($1L)", RemoteProcess.maxPacketSize).build());
+            classBuilder.addField(FieldSpec.builder(ReusableByteOutStream.class, "OUT", Modifier.STATIC, Modifier.PRIVATE, Modifier.FINAL)
+            .initializer("new ReusableByteOutStream($L)", RemoteProcess.maxPacketSize).build());
+
+            //add writer for that buffer
+            classBuilder.addField(FieldSpec.builder(Writes.class, "WRITE", Modifier.STATIC, Modifier.PRIVATE, Modifier.FINAL)
+            .initializer("new Writes(new $T(OUT))", DataOutputStream.class).build());
 
             //go through each method entry in this class
             for(MethodEntry methodEntry : entry.methods){
@@ -74,12 +77,12 @@ public class RemoteWriteGenerator{
         //validate client methods to make sure
         if(methodEntry.where.isClient){
             if(elem.getParameters().isEmpty()){
-                BaseProcessor.messager.printMessage(Kind.ERROR, "Client invoke methods must have a first parameter of type Player.", elem);
+                BaseProcessor.err("Client invoke methods must have a first parameter of type Player", elem);
                 return;
             }
 
-            if(!elem.getParameters().get(0).asType().toString().equals("mindustry.entities.type.Player")){
-                BaseProcessor.messager.printMessage(Kind.ERROR, "Client invoke methods should have a first parameter of type Player.", elem);
+            if(!elem.getParameters().get(0).asType().toString().contains("Player")){
+                BaseProcessor.err("Client invoke methods should have a first parameter of type Player", elem);
                 return;
             }
         }
@@ -129,14 +132,14 @@ public class RemoteWriteGenerator{
 
         //add statement to create packet from pool
         method.addStatement("$1N packet = $2N.obtain($1N.class, $1N::new)", "mindustry.net.Packets.InvokePacket", "arc.util.pooling.Pools");
-        //assign buffer
-        method.addStatement("packet.writeBuffer = TEMP_BUFFER");
         //assign priority
         method.addStatement("packet.priority = (byte)" + methodEntry.priority.ordinal());
         //assign method ID
         method.addStatement("packet.type = (byte)" + methodEntry.id);
-        //rewind buffer
-        method.addStatement("TEMP_BUFFER.position(0)");
+        //reset stream
+        method.addStatement("OUT.reset()");
+
+        method.addTypeVariables(Seq.with(elem.getTypeParameters()).map(BaseProcessor::getTVN));
 
         for(int i = 0; i < elem.getParameters().size(); i++){
             //first argument is skipped as it is always the player caller
@@ -146,8 +149,12 @@ public class RemoteWriteGenerator{
 
             VariableElement var = elem.getParameters().get(i);
 
-            //add parameter to method
-            method.addParameter(TypeName.get(var.asType()), var.getSimpleName().toString());
+            try{
+                //add parameter to method
+                method.addParameter(TypeName.get(var.asType()), var.getSimpleName().toString());
+            }catch(Throwable t){
+                throw new RuntimeException("Error parsing method " + methodEntry.targetMethod);
+            }
 
             //name of parameter
             String varName = var.getSimpleName().toString();
@@ -164,23 +171,18 @@ public class RemoteWriteGenerator{
             }
 
             if(BaseProcessor.isPrimitive(typeName)){ //check if it's a primitive, and if so write it
-                if(typeName.equals("boolean")){ //booleans are special
-                    method.addStatement("TEMP_BUFFER.put(" + varName + " ? (byte)1 : 0)");
-                }else{
-                    method.addStatement("TEMP_BUFFER.put" +
-                    capName + "(" + varName + ")");
-                }
+                method.addStatement("WRITE.$L($L)", typeName.equals("boolean") ? "bool" : typeName.charAt(0) + "", varName);
             }else{
                 //else, try and find a serializer
-                ClassSerializer ser = serializers.get(typeName);
+                String ser = serializers.writers.get(typeName.replace("mindustry.gen.", ""), SerializerResolver.locate(elem, var.asType(), true));
 
                 if(ser == null){ //make sure a serializer exists!
-                    BaseProcessor.messager.printMessage(Kind.ERROR, "No @WriteClass method to write class type: '" + typeName + "'", var);
+                    BaseProcessor.err("No @WriteClass method to write class type: '" + typeName + "'", var);
                     return;
                 }
 
                 //add statement for writing it
-                method.addStatement(ser.writeMethod + "(TEMP_BUFFER, " + varName + ")");
+                method.addStatement(ser + "(WRITE, " + varName + ")");
             }
 
             if(writePlayerSkipCheck){ //write end check
@@ -188,8 +190,10 @@ public class RemoteWriteGenerator{
             }
         }
 
+        //assign packet bytes
+        method.addStatement("packet.bytes = OUT.getBytes()");
         //assign packet length
-        method.addStatement("packet.writeLength = TEMP_BUFFER.position()");
+        method.addStatement("packet.length = OUT.size()");
 
         String sendString;
 

annotations/src/main/java/mindustry/annotations/remote/SerializerResolver.java

@@ -0,0 +1,22 @@
+package mindustry.annotations.remote;
+
+import arc.struct.*;
+
+import javax.lang.model.element.*;
+import javax.lang.model.type.*;
+
+public class SerializerResolver{
+
+    public static String locate(ExecutableElement elem, TypeMirror mirror, boolean write){
+        //generic type
+        if((mirror.toString().equals("T") && Seq.with(elem.getTypeParameters().get(0).getBounds()).contains(SerializerResolver::isEntity)) ||
+            isEntity(mirror)){
+            return write ? "mindustry.io.TypeIO.writeEntity" : "mindustry.io.TypeIO.readEntity";
+        }
+        return null;
+    }
+
+    private static boolean isEntity(TypeMirror mirror){
+        return !mirror.toString().contains(".") || mirror.toString().startsWith("mindustry.gen.") && !mirror.toString().startsWith("byte");
+    }
+}

annotations/src/main/java/mindustry/annotations/util/AnnotationProxyMaker.java

@@ -0,0 +1,262 @@
+package mindustry.annotations.util;
+
+import arc.func.*;
+import com.sun.tools.javac.code.*;
+import com.sun.tools.javac.code.Attribute.Array;
+import com.sun.tools.javac.code.Attribute.Enum;
+import com.sun.tools.javac.code.Attribute.Error;
+import com.sun.tools.javac.code.Attribute.Visitor;
+import com.sun.tools.javac.code.Attribute.*;
+import com.sun.tools.javac.code.Type;
+import com.sun.tools.javac.code.Symbol.*;
+import com.sun.tools.javac.code.Type.ArrayType;
+import com.sun.tools.javac.util.List;
+import com.sun.tools.javac.util.Name;
+import com.sun.tools.javac.util.*;
+import sun.reflect.annotation.*;
+
+import javax.lang.model.element.*;
+import javax.lang.model.type.*;
+import java.lang.Class;
+import java.lang.annotation.*;
+import java.lang.reflect.*;
+import java.util.*;
+import java.util.Map.*;
+
+//replaces the standard Java AnnotationProxyMaker with one that doesn't crash
+//thanks, oracle.
+@SuppressWarnings({"sunapi", "unchecked"})
+public class AnnotationProxyMaker{
+    private final Compound anno;
+    private final Class<? extends Annotation> annoType;
+
+    private AnnotationProxyMaker(Compound var1, Class<? extends Annotation> var2){
+        this.anno = var1;
+        this.annoType = var2;
+    }
+
+    public static <A extends Annotation> A generateAnnotation(Compound var0, Class<A> var1){
+        AnnotationProxyMaker var2 = new AnnotationProxyMaker(var0, var1);
+        return (A)var1.cast(var2.generateAnnotation());
+    }
+
+    private Annotation generateAnnotation(){
+        return AnnotationParser.annotationForMap(this.annoType, this.getAllReflectedValues());
+    }
+
+    private Map<String, Object> getAllReflectedValues(){
+        LinkedHashMap var1 = new LinkedHashMap();
+        Iterator var2 = this.getAllValues().entrySet().iterator();
+
+        while(var2.hasNext()){
+            Entry var3 = (Entry)var2.next();
+            MethodSymbol var4 = (MethodSymbol)var3.getKey();
+            Object var5 = this.generateValue(var4, (Attribute)var3.getValue());
+            if(var5 != null){
+                var1.put(var4.name.toString(), var5);
+            }
+        }
+
+        return var1;
+    }
+
+    private Map<MethodSymbol, Attribute> getAllValues(){
+        LinkedHashMap map = new LinkedHashMap();
+        ClassSymbol cl = (ClassSymbol)this.anno.type.tsym;
+
+        //try to use Java 8 API for this if possible
+        try{
+            Class entryClass = Class.forName("com.sun.tools.javac.code.Scope$Entry");
+            Object members = cl.members();
+            Field field = members.getClass().getField("elems");
+            Object elems = field.get(members);
+            Field siblingField = entryClass.getField("sibling");
+            Field symField = entryClass.getField("sym");
+            for(Object currEntry = elems; currEntry != null; currEntry = siblingField.get(currEntry)){
+                handleSymbol((Symbol)symField.get(currEntry), map);
+            }
+
+        }catch(Throwable e){
+            //otherwise try other API
+
+            try{
+                Class lookupClass = Class.forName("com.sun.tools.javac.code.Scope$LookupKind");
+                Field nonRecField = lookupClass.getField("NON_RECURSIVE");
+                Object nonRec = nonRecField.get(null);
+                Scope scope = cl.members();
+                Method getSyms = scope.getClass().getMethod("getSymbols", lookupClass);
+                Iterable<Symbol> it = (Iterable<Symbol>)getSyms.invoke(scope, nonRec);
+                Iterator<Symbol> i = it.iterator();
+                while(i.hasNext()){
+                    handleSymbol(i.next(), map);
+                }
+
+            }catch(Throwable death){
+                //I tried
+                throw new RuntimeException(death);
+            }
+        }
+
+        for(Pair var7 : this.anno.values){
+            map.put(var7.fst, var7.snd);
+        }
+
+        return map;
+    }
+
+    private void handleSymbol(Symbol sym, LinkedHashMap map){
+
+        if(sym.getKind() == ElementKind.METHOD){
+            MethodSymbol var4 = (MethodSymbol)sym;
+            Attribute var5 = var4.getDefaultValue();
+            if(var5 != null){
+                map.put(var4, var5);
+            }
+        }
+    }
+
+    private Object generateValue(MethodSymbol var1, Attribute var2){
+        AnnotationProxyMaker.ValueVisitor var3 = new AnnotationProxyMaker.ValueVisitor(var1);
+        return var3.getValue(var2);
+    }
+
+    private class ValueVisitor implements Visitor{
+        private MethodSymbol meth;
+        private Class<?> returnClass;
+        private Object value;
+
+        ValueVisitor(MethodSymbol var2){
+            this.meth = var2;
+        }
+
+        Object getValue(Attribute var1){
+            Method var2;
+            try{
+                var2 = AnnotationProxyMaker.this.annoType.getMethod(this.meth.name.toString());
+            }catch(NoSuchMethodException var4){
+                return null;
+            }
+
+            this.returnClass = var2.getReturnType();
+            var1.accept(this);
+            if(!(this.value instanceof ExceptionProxy) && !AnnotationType.invocationHandlerReturnType(this.returnClass).isInstance(this.value)){
+                this.typeMismatch(var2, var1);
+            }
+
+            return this.value;
+        }
+
+        public void visitConstant(Constant var1){
+            this.value = var1.getValue();
+        }
+
+        public void visitClass(com.sun.tools.javac.code.Attribute.Class var1){
+            this.value = mirrorProxy(var1.classType);
+        }
+
+        public void visitArray(Array var1){
+            Name var2 = ((ArrayType)var1.type).elemtype.tsym.getQualifiedName();
+            int var6;
+            if(var2.equals(var2.table.names.java_lang_Class)){
+                ListBuffer var14 = new ListBuffer();
+                Attribute[] var15 = var1.values;
+                int var16 = var15.length;
+
+                for(var6 = 0; var6 < var16; ++var6){
+                    Attribute var7 = var15[var6];
+                    Type var8 = var7 instanceof UnresolvedClass ? ((UnresolvedClass)var7).classType : ((com.sun.tools.javac.code.Attribute.Class)var7).classType;
+                    var14.append(var8);
+                }
+
+                this.value = mirrorProxy(var14.toList());
+            }else{
+                int var3 = var1.values.length;
+                Class var4 = this.returnClass;
+                this.returnClass = this.returnClass.getComponentType();
+
+                try{
+                    Object var5 = java.lang.reflect.Array.newInstance(this.returnClass, var3);
+
+                    for(var6 = 0; var6 < var3; ++var6){
+                        var1.values[var6].accept(this);
+                        if(this.value == null || this.value instanceof ExceptionProxy){
+                            return;
+                        }
+
+                        try{
+                            java.lang.reflect.Array.set(var5, var6, this.value);
+                        }catch(IllegalArgumentException var12){
+                            this.value = null;
+                            return;
+                        }
+                    }
+
+                    this.value = var5;
+                }finally{
+                    this.returnClass = var4;
+                }
+            }
+        }
+
+        public void visitEnum(Enum var1){
+            if(this.returnClass.isEnum()){
+                String var2 = var1.value.toString();
+
+                try{
+                    this.value = java.lang.Enum.valueOf((Class)this.returnClass, var2);
+                }catch(IllegalArgumentException var4){
+                    this.value = proxify(() -> new EnumConstantNotPresentException((Class)this.returnClass, var2));
+                }
+            }else{
+                this.value = null;
+            }
+
+        }
+
+        public void visitCompound(Compound var1){
+            try{
+                Class var2 = this.returnClass.asSubclass(Annotation.class);
+                this.value = AnnotationProxyMaker.generateAnnotation(var1, var2);
+            }catch(ClassCastException var3){
+                this.value = null;
+            }
+
+        }
+
+        public void visitError(Error var1){
+            if(var1 instanceof UnresolvedClass){
+                this.value = mirrorProxy(((UnresolvedClass)var1).classType);
+            }else{
+                this.value = null;
+            }
+
+        }
+
+        private void typeMismatch(Method var1, final Attribute var2){
+            this.value = proxify(() -> new AnnotationTypeMismatchException(var1, var2.type.toString()));
+        }
+    }
+
+    private static Object mirrorProxy(Type t){
+        return proxify(() -> new MirroredTypeException(t));
+    }
+
+    private static Object mirrorProxy(List<Type> t){
+        return proxify(() -> new MirroredTypesException(t));
+    }
+
+    private static <T extends Throwable> Object proxify(Prov<T> prov){
+        try{
+
+            return new ExceptionProxy(){
+                @Override
+                protected RuntimeException generateException(){
+                    return (RuntimeException)prov.get();
+                }
+            };
+        }catch(Throwable t){
+            throw new RuntimeException(t);
+        }
+
+    }
+}

annotations/src/main/java/mindustry/annotations/util/Selement.java

@@ -1,10 +1,16 @@
 package mindustry.annotations.util;
 
+import arc.struct.*;
+import arc.util.ArcAnnotate.*;
 import com.squareup.javapoet.*;
+import com.sun.tools.javac.code.Attribute.*;
 import mindustry.annotations.*;
 
 import javax.lang.model.element.*;
 import javax.lang.model.type.*;
+import java.lang.Class;
+import java.lang.annotation.*;
+import java.lang.reflect.*;
 
 public class Selement<T extends Element>{
     public final T e;
@@ -13,6 +19,61 @@ public class Selement<T extends Element>{
         this.e = e;
     }
 
+    public @Nullable String doc(){
+        return BaseProcessor.elementu.getDocComment(e);
+    }
+
+    public Seq<Selement<?>> enclosed(){
+        return Seq.with(e.getEnclosedElements()).map(Selement::new);
+    }
+
+    public String fullName(){
+        return e.toString();
+    }
+
+    public Stype asType(){
+        return new Stype((TypeElement)e);
+    }
+
+    public Svar asVar(){
+        return new Svar((VariableElement)e);
+    }
+
+    public Smethod asMethod(){
+        return new Smethod((ExecutableElement)e);
+    }
+
+    public boolean isVar(){
+        return e instanceof VariableElement;
+    }
+
+    public boolean isType(){
+        return e instanceof TypeElement;
+    }
+
+    public boolean isMethod(){
+        return e instanceof ExecutableElement;
+    }
+
+    public Seq<? extends AnnotationMirror> annotations(){
+        return Seq.with(e.getAnnotationMirrors());
+    }
+
+    public <A extends Annotation> A annotation(Class<A> annotation){
+        try{
+            Method m = com.sun.tools.javac.code.AnnoConstruct.class.getDeclaredMethod("getAttribute", Class.class);
+            m.setAccessible(true);
+            Compound compound = (Compound)m.invoke(e, annotation);
+            return compound == null ? null : AnnotationProxyMaker.generateAnnotation(compound, annotation);
+        }catch(Exception e){
+            throw new RuntimeException(e);
+        }
+    }
+
+    public <A extends Annotation> boolean has(Class<A> annotation){
+        return annotation(annotation) != null;
+    }
+
     public Element up(){
         return e.getEnclosingElement();
     }
@@ -45,6 +106,6 @@ public class Selement<T extends Element>{
 
     @Override
     public boolean equals(Object o){
-        return o != null && o.getClass() == getClass() && ((Selement)o).e.equals(e);
+        return o != null && o.getClass() == getClass() && e.equals(((Selement)o).e);
     }
 }

annotations/src/main/java/mindustry/annotations/util/Smethod.java

@@ -14,24 +14,43 @@ public class Smethod extends Selement<ExecutableElement>{
         super(executableElement);
     }
 
+    public boolean isAny(Modifier... mod){
+        for(Modifier m : mod){
+            if(is(m)) return true;
+        }
+        return false;
+    }
+
+    public String descString(){
+        return up().asType().toString() + "#" + super.toString().replace("mindustry.gen.", "");
+    }
+
     public boolean is(Modifier mod){
         return e.getModifiers().contains(mod);
     }
 
-    public Array<TypeMirror> thrown(){
-        return Array.with(e.getThrownTypes()).as(TypeMirror.class);
+    public Stype type(){
+        return new Stype((TypeElement)up());
     }
 
-    public Array<TypeName> thrownt(){
-        return Array.with(e.getThrownTypes()).map(TypeName::get);
+    public Seq<TypeMirror> thrown(){
+        return Seq.with(e.getThrownTypes()).as();
     }
 
-    public Array<TypeParameterElement> typeVariables(){
-        return Array.with(e.getTypeParameters()).as(TypeParameterElement.class);
+    public Seq<TypeName> thrownt(){
+        return Seq.with(e.getThrownTypes()).map(TypeName::get);
     }
 
-    public Array<Svar> params(){
-        return Array.with(e.getParameters()).map(Svar::new);
+    public Seq<TypeParameterElement> typeVariables(){
+        return Seq.with(e.getTypeParameters()).as();
+    }
+
+    public Seq<Svar> params(){
+        return Seq.with(e.getParameters()).map(Svar::new);
+    }
+
+    public boolean isVoid(){
+        return ret().toString().equals("void");
     }
 
     public TypeMirror ret(){
@@ -45,4 +64,8 @@ public class Smethod extends Selement<ExecutableElement>{
     public MethodTree tree(){
         return BaseProcessor.trees.getTree(e);
     }
+
+    public String simpleString(){
+        return name() + "(" + params().toString(", ", p -> BaseProcessor.simpleName(p.mirror().toString())) + ")";
+    }
 }

annotations/src/main/java/mindustry/annotations/util/Stype.java

@@ -5,7 +5,6 @@ import mindustry.annotations.*;
 
 import javax.lang.model.element.*;
 import javax.lang.model.type.*;
-import java.lang.annotation.*;
 
 public class Stype extends Selement<TypeElement>{
 
@@ -17,39 +16,41 @@ public class Stype extends Selement<TypeElement>{
         return new Stype((TypeElement)BaseProcessor.typeu.asElement(mirror));
     }
 
-    public Array<Stype> interfaces(){
-        return Array.with(e.getInterfaces()).map(Stype::of);
+    public String fullName(){
+        return mirror().toString();
     }
 
-    public Array<Stype> superclasses(){
-        Array<Stype> out = new Array<>();
-        Stype sup = superclass();
-        while(!sup.name().equals("Object")){
-            out.add(sup);
-            sup = sup.superclass();
-        }
-        return out;
+    public Seq<Stype> interfaces(){
+        return Seq.with(e.getInterfaces()).map(Stype::of);
+    }
+
+    public Seq<Stype> allInterfaces(){
+        return interfaces().flatMap(s -> s.allInterfaces().and(s)).distinct();
+    }
+
+    public Seq<Stype> superclasses(){
+        return Seq.with(BaseProcessor.typeu.directSupertypes(mirror())).map(Stype::of);
+    }
+
+    public Seq<Stype> allSuperclasses(){
+        return superclasses().flatMap(s -> s.allSuperclasses().and(s)).distinct();
     }
 
     public Stype superclass(){
         return new Stype((TypeElement)BaseProcessor.typeu.asElement(BaseProcessor.typeu.directSupertypes(mirror()).get(0)));
     }
 
-    public <A extends Annotation> A annotation(Class<A> annotation){
-        return e.getAnnotation(annotation);
+    public Seq<Svar> fields(){
+        return Seq.with(e.getEnclosedElements()).select(e -> e instanceof VariableElement).map(e -> new Svar((VariableElement)e));
     }
 
-    public Array<Svar> fields(){
-        return Array.with(e.getEnclosedElements()).select(e -> e instanceof VariableElement).map(e -> new Svar((VariableElement)e));
-    }
-
-    public Array<Smethod> methods(){
-        return Array.with(e.getEnclosedElements()).select(e -> e instanceof ExecutableElement
+    public Seq<Smethod> methods(){
+        return Seq.with(e.getEnclosedElements()).select(e -> e instanceof ExecutableElement
         && !e.getSimpleName().toString().contains("<")).map(e -> new Smethod((ExecutableElement)e));
     }
 
-    public Array<Smethod> constructors(){
-        return Array.with(e.getEnclosedElements()).select(e -> e instanceof ExecutableElement
+    public Seq<Smethod> constructors(){
+        return Seq.with(e.getEnclosedElements()).select(e -> e instanceof ExecutableElement
         && e.getSimpleName().toString().contains("<")).map(e -> new Smethod((ExecutableElement)e));
     }
 

annotations/src/main/java/mindustry/annotations/util/Svar.java

@@ -1,6 +1,7 @@
 package mindustry.annotations.util;
 
 import com.sun.source.tree.*;
+import com.sun.tools.javac.tree.JCTree.*;
 import mindustry.annotations.*;
 
 import javax.lang.model.element.*;
@@ -11,6 +12,25 @@ public class Svar extends Selement<VariableElement>{
         super(e);
     }
 
+    public String descString(){
+        return up().asType().toString() + "#" + super.toString().replace("mindustry.gen.", "");
+    }
+
+    public JCVariableDecl jtree(){
+        return (JCVariableDecl)BaseProcessor.elementu.getTree(e);
+    }
+
+    public Stype enclosingType(){
+        return new Stype((TypeElement)up());
+    }
+
+    public boolean isAny(Modifier... mods){
+        for(Modifier m : mods){
+            if(is(m)) return true;
+        }
+        return false;
+    }
+
     public boolean is(Modifier mod){
         return e.getModifiers().contains(mod);
     }

annotations/src/main/java/mindustry/annotations/util/TypeIOResolver.java

@@ -0,0 +1,58 @@
+package mindustry.annotations.util;
+
+import arc.struct.*;
+import mindustry.annotations.Annotations.*;
+import mindustry.annotations.*;
+
+import javax.lang.model.element.*;
+
+/**
+ * This class finds reader and writer methods.
+ */
+public class TypeIOResolver{
+
+    /**
+     * Finds all class serializers for all types and returns them. Logs errors when necessary.
+     * Maps fully qualified class names to their serializers.
+     */
+    public static ClassSerializer resolve(BaseProcessor processor){
+        ClassSerializer out = new ClassSerializer(new ObjectMap<>(), new ObjectMap<>(), new ObjectMap<>());
+        for(Stype type : processor.types(TypeIOHandler.class)){
+            //look at all TypeIOHandler methods
+            Seq<Smethod> methods = type.methods();
+            for(Smethod meth : methods){
+                if(meth.is(Modifier.PUBLIC) && meth.is(Modifier.STATIC)){
+                    Seq<Svar> params = meth.params();
+                    //2 params, second one is type, first is writer
+                    if(params.size == 2 && params.first().tname().toString().equals("arc.util.io.Writes")){
+                        out.writers.put(fix(params.get(1).tname().toString()), type.fullName() + "." + meth.name());
+                    }else if(params.size == 1 && params.first().tname().toString().equals("arc.util.io.Reads") && !meth.isVoid()){
+                        //1 param, one is reader, returns type
+                        out.readers.put(fix(meth.retn().toString()), type.fullName() + "." + meth.name());
+                    }else if(params.size == 2 && params.first().tname().toString().equals("arc.util.io.Reads") && !meth.isVoid() && meth.ret().equals(meth.params().get(1).mirror())){
+                        //2 params, one is reader, other is type, returns type - these are made to reduce garbage allocated
+                        out.mutatorReaders.put(fix(meth.retn().toString()), type.fullName() + "." + meth.name());
+                    }
+                }
+            }
+        }
+
+        return out;
+    }
+
+    /** makes sure type names don't contain 'gen' */
+    private static String fix(String str){
+        return str.replace("mindustry.gen", "");
+    }
+
+    /** Information about read/write methods for class types. */
+    public static class ClassSerializer{
+        public final ObjectMap<String, String> writers, readers, mutatorReaders;
+
+        public ClassSerializer(ObjectMap<String, String> writers, ObjectMap<String, String> readers, ObjectMap<String, String> mutatorReaders){
+            this.writers = writers;
+            this.readers = readers;
+            this.mutatorReaders = mutatorReaders;
+        }
+    }
+}

annotations/src/main/resources/classids.properties

@@ -0,0 +1,29 @@
+#Maps entity names to IDs. Autogenerated.
+
+alpha=0
+block=1
+cix=2
+draug=3
+mace=4
+mindustry.entities.comp.BuildingComp=22
+mindustry.entities.comp.Buildingomp=11
+mindustry.entities.comp.BulletComp=24
+mindustry.entities.comp.Bulletomp=5
+mindustry.entities.comp.DecalComp=6
+mindustry.entities.comp.EffectComp=7
+mindustry.entities.comp.EffectInstanceComp=23
+mindustry.entities.comp.EffectStateComp=25
+mindustry.entities.comp.FireComp=8
+mindustry.entities.comp.LaunchCoreComp=21
+mindustry.entities.comp.PlayerComp=9
+mindustry.entities.comp.PuddleComp=10
+mindustry.type.Weather.WeatherComp=12
+mindustry.type.Weather.WeatherStateComp=26
+mindustry.world.blocks.campaign.CoreLauncher.LaunchCoreComp=13
+mindustry.world.blocks.campaign.LaunchPad.LaunchPayloadComp=14
+oculon=15
+phantom=16
+tau=17
+trident=18
+vanguard=19
+wraith=20

annotations/src/main/resources/revisions/BlockUnitUnit/0.json

@@ -0,0 +1 @@
+{fields:[{name:ammo,type:int,size:4},{name:armor,type:float,size:4},{name:controller,type:mindustry.entities.units.UnitController,size:-1},{name:elevation,type:float,size:4},{name:health,type:float,size:4},{name:isShooting,type:boolean,size:1},{name:mounts,type:"mindustry.entities.units.WeaponMount[]",size:-1},{name:rotation,type:float,size:4},{name:shield,type:float,size:4},{name:spawnedByCore,type:boolean,size:1},{name:stack,type:mindustry.type.ItemStack,size:-1},{name:statuses,type:arc.struct.Seq<mindustry.entities.units.StatusEntry>,size:-1},{name:team,type:mindustry.game.Team,size:-1},{name:type,type:mindustry.type.UnitType,size:-1},{name:x,type:float,size:4},{name:y,type:float,size:4}]}

annotations/src/main/resources/revisions/BuilderCommanderMechMinerUnit/0.json

@@ -0,0 +1 @@
+{fields:[{name:ammo,type:int,size:4},{name:armor,type:float,size:4},{name:baseRotation,type:float,size:4},{name:controller,type:mindustry.entities.units.UnitController,size:-1},{name:elevation,type:float,size:4},{name:health,type:float,size:4},{name:isShooting,type:boolean,size:1},{name:mineTile,type:mindustry.world.Tile,size:-1},{name:mounts,type:"mindustry.entities.units.WeaponMount[]",size:-1},{name:plans,type:arc.struct.Queue<mindustry.entities.units.BuildPlan>,size:-1},{name:rotation,type:float,size:4},{name:shield,type:float,size:4},{name:spawnedByCore,type:boolean,size:1},{name:stack,type:mindustry.type.ItemStack,size:-1},{name:statuses,type:arc.struct.Seq<mindustry.entities.units.StatusEntry>,size:-1},{name:team,type:mindustry.game.Team,size:-1},{name:type,type:mindustry.type.UnitType,size:-1},{name:x,type:float,size:4},{name:y,type:float,size:4}]}

annotations/src/main/resources/revisions/BuilderMechUnit/0.json

@@ -0,0 +1 @@
+{fields:[{name:ammo,type:int,size:4},{name:armor,type:float,size:4},{name:baseRotation,type:float,size:4},{name:controller,type:mindustry.entities.units.UnitController,size:-1},{name:elevation,type:float,size:4},{name:health,type:float,size:4},{name:isShooting,type:boolean,size:1},{name:mounts,type:"mindustry.entities.units.WeaponMount[]",size:-1},{name:plans,type:arc.struct.Queue<mindustry.entities.units.BuildPlan>,size:-1},{name:rotation,type:float,size:4},{name:shield,type:float,size:4},{name:spawnedByCore,type:boolean,size:1},{name:stack,type:mindustry.type.ItemStack,size:-1},{name:statuses,type:arc.struct.Seq<mindustry.entities.units.StatusEntry>,size:-1},{name:team,type:mindustry.game.Team,size:-1},{name:type,type:mindustry.type.UnitType,size:-1},{name:x,type:float,size:4},{name:y,type:float,size:4}]}

annotations/src/main/resources/revisions/BuilderMinerPayloadUnit/0.json

@@ -0,0 +1 @@
+{fields:[{name:ammo,type:int,size:4},{name:armor,type:float,size:4},{name:controller,type:mindustry.entities.units.UnitController,size:-1},{name:elevation,type:float,size:4},{name:health,type:float,size:4},{name:isShooting,type:boolean,size:1},{name:mineTile,type:mindustry.world.Tile,size:-1},{name:mounts,type:"mindustry.entities.units.WeaponMount[]",size:-1},{name:payloads,type:arc.struct.Seq<mindustry.world.blocks.payloads.Payload>,size:-1},{name:plans,type:arc.struct.Queue<mindustry.entities.units.BuildPlan>,size:-1},{name:rotation,type:float,size:4},{name:shield,type:float,size:4},{name:spawnedByCore,type:boolean,size:1},{name:stack,type:mindustry.type.ItemStack,size:-1},{name:statuses,type:arc.struct.Seq<mindustry.entities.units.StatusEntry>,size:-1},{name:team,type:mindustry.game.Team,size:-1},{name:type,type:mindustry.type.UnitType,size:-1},{name:x,type:float,size:4},{name:y,type:float,size:4}]}

annotations/src/main/resources/revisions/BuilderMinerTrailUnit/0.json

@@ -0,0 +1 @@
+{fields:[{name:ammo,type:int,size:4},{name:armor,type:float,size:4},{name:controller,type:mindustry.entities.units.UnitController,size:-1},{name:elevation,type:float,size:4},{name:health,type:float,size:4},{name:isShooting,type:boolean,size:1},{name:mineTile,type:mindustry.world.Tile,size:-1},{name:mounts,type:"mindustry.entities.units.WeaponMount[]",size:-1},{name:plans,type:arc.struct.Queue<mindustry.entities.units.BuildPlan>,size:-1},{name:rotation,type:float,size:4},{name:shield,type:float,size:4},{name:spawnedByCore,type:boolean,size:1},{name:stack,type:mindustry.type.ItemStack,size:-1},{name:statuses,type:arc.struct.Seq<mindustry.entities.units.StatusEntry>,size:-1},{name:team,type:mindustry.game.Team,size:-1},{name:type,type:mindustry.type.UnitType,size:-1},{name:x,type:float,size:4},{name:y,type:float,size:4}]}

annotations/src/main/resources/revisions/BuilderMinerUnit/0.json

@@ -0,0 +1 @@
+{fields:[{name:ammo,type:int,size:4},{name:armor,type:float,size:4},{name:controller,type:mindustry.entities.units.UnitController,size:-1},{name:elevation,type:float,size:4},{name:health,type:float,size:4},{name:isShooting,type:boolean,size:1},{name:mineTile,type:mindustry.world.Tile,size:-1},{name:mounts,type:"mindustry.entities.units.WeaponMount[]",size:-1},{name:plans,type:arc.struct.Queue<mindustry.entities.units.BuildPlan>,size:-1},{name:rotation,type:float,size:4},{name:shield,type:float,size:4},{name:spawnedByCore,type:boolean,size:1},{name:stack,type:mindustry.type.ItemStack,size:-1},{name:statuses,type:arc.struct.Seq<mindustry.entities.units.StatusEntry>,size:-1},{name:team,type:mindustry.game.Team,size:-1},{name:type,type:mindustry.type.UnitType,size:-1},{name:x,type:float,size:4},{name:y,type:float,size:4}]}

annotations/src/main/resources/revisions/BuilderUnit/0.json

@@ -0,0 +1 @@
+{fields:[{name:ammo,type:int,size:4},{name:armor,type:float,size:4},{name:controller,type:mindustry.entities.units.UnitController,size:-1},{name:elevation,type:float,size:4},{name:health,type:float,size:4},{name:isShooting,type:boolean,size:1},{name:mounts,type:"mindustry.entities.units.WeaponMount[]",size:-1},{name:plans,type:arc.struct.Queue<mindustry.entities.units.BuildPlan>,size:-1},{name:rotation,type:float,size:4},{name:shield,type:float,size:4},{name:spawnedByCore,type:boolean,size:1},{name:stack,type:mindustry.type.ItemStack,size:-1},{name:statuses,type:arc.struct.Seq<mindustry.entities.units.StatusEntry>,size:-1},{name:team,type:mindustry.game.Team,size:-1},{name:type,type:mindustry.type.UnitType,size:-1},{name:x,type:float,size:4},{name:y,type:float,size:4}]}

annotations/src/main/resources/revisions/Building/0.json

@@ -0,0 +1 @@
+{fields:[{name:cons,type:mindustry.world.modules.ConsumeModule,size:-1},{name:health,type:float,size:4},{name:items,type:mindustry.world.modules.ItemModule,size:-1},{name:liquids,type:mindustry.world.modules.LiquidModule,size:-1},{name:power,type:mindustry.world.modules.PowerModule,size:-1},{name:team,type:mindustry.game.Team,size:-1},{name:x,type:float,size:4},{name:y,type:float,size:4}]}

annotations/src/main/resources/revisions/Bullet/0.json

@@ -0,0 +1 @@
+{fields:[{name:collided,type:arc.struct.IntSeq,size:-1},{name:damage,type:float,size:4},{name:data,type:java.lang.Object,size:-1},{name:lifetime,type:float,size:4},{name:owner,type:Entityc,size:-1},{name:team,type:mindustry.game.Team,size:-1},{name:time,type:float,size:4},{name:type,type:mindustry.entities.bullet.BulletType,size:-1},{name:x,type:float,size:4},{name:y,type:float,size:4}]}

annotations/src/main/resources/revisions/CommanderUnitWaterMove/0.json

@@ -0,0 +1 @@
+{fields:[{name:ammo,type:int,size:4},{name:armor,type:float,size:4},{name:controller,type:mindustry.entities.units.UnitController,size:-1},{name:elevation,type:float,size:4},{name:health,type:float,size:4},{name:isShooting,type:boolean,size:1},{name:mounts,type:"mindustry.entities.units.WeaponMount[]",size:-1},{name:rotation,type:float,size:4},{name:shield,type:float,size:4},{name:spawnedByCore,type:boolean,size:1},{name:stack,type:mindustry.type.ItemStack,size:-1},{name:statuses,type:arc.struct.Seq<mindustry.entities.units.StatusEntry>,size:-1},{name:team,type:mindustry.game.Team,size:-1},{name:type,type:mindustry.type.UnitType,size:-1},{name:x,type:float,size:4},{name:y,type:float,size:4}]}

annotations/src/main/resources/revisions/Decal/0.json

@@ -0,0 +1 @@
+{fields:[{name:color,type:arc.graphics.Color,size:-1},{name:lifetime,type:float,size:4},{name:region,type:arc.graphics.g2d.TextureRegion,size:-1},{name:rotation,type:float,size:4},{name:time,type:float,size:4},{name:x,type:float,size:4},{name:y,type:float,size:4}]}

annotations/src/main/resources/revisions/EffectState/0.json

@@ -0,0 +1 @@
+{fields:[{name:color,type:arc.graphics.Color,size:-1},{name:data,type:java.lang.Object,size:-1},{name:effect,type:mindustry.entities.Effect,size:-1},{name:lifetime,type:float,size:4},{name:offsetX,type:float,size:4},{name:offsetY,type:float,size:4},{name:parent,type:Posc,size:-1},{name:rotation,type:float,size:4},{name:time,type:float,size:4},{name:x,type:float,size:4},{name:y,type:float,size:4}]}

annotations/src/main/resources/revisions/Fire/0.json

@@ -0,0 +1 @@
+{fields:[{name:baseFlammability,type:float,size:4},{name:block,type:mindustry.world.Block,size:-1},{name:lifetime,type:float,size:4},{name:puddleFlammability,type:float,size:4},{name:tile,type:mindustry.world.Tile,size:-1},{name:time,type:float,size:4},{name:x,type:float,size:4},{name:y,type:float,size:4}]}

annotations/src/main/resources/revisions/LaunchCore/0.json

@@ -0,0 +1 @@
+{fields:[{name:block,type:mindustry.world.Block,size:-1},{name:lifetime,type:float,size:4},{name:time,type:float,size:4},{name:x,type:float,size:4},{name:y,type:float,size:4}]}

annotations/src/main/resources/revisions/LaunchPayload/0.json

@@ -0,0 +1 @@
+{fields:[{name:lifetime,type:float,size:4},{name:stacks,type:arc.struct.Seq<mindustry.type.ItemStack>,size:-1},{name:team,type:mindustry.game.Team,size:-1},{name:time,type:float,size:4},{name:x,type:float,size:4},{name:y,type:float,size:4}]}

annotations/src/main/resources/revisions/LegsUnit/0.json

@@ -0,0 +1 @@
+{fields:[{name:ammo,type:int,size:4},{name:armor,type:float,size:4},{name:controller,type:mindustry.entities.units.UnitController,size:-1},{name:elevation,type:float,size:4},{name:health,type:float,size:4},{name:isShooting,type:boolean,size:1},{name:mounts,type:"mindustry.entities.units.WeaponMount[]",size:-1},{name:rotation,type:float,size:4},{name:shield,type:float,size:4},{name:spawnedByCore,type:boolean,size:1},{name:stack,type:mindustry.type.ItemStack,size:-1},{name:statuses,type:arc.struct.Seq<mindustry.entities.units.StatusEntry>,size:-1},{name:team,type:mindustry.game.Team,size:-1},{name:type,type:mindustry.type.UnitType,size:-1},{name:x,type:float,size:4},{name:y,type:float,size:4}]}

annotations/src/main/resources/revisions/MechUnit/0.json

@@ -0,0 +1 @@
+{fields:[{name:ammo,type:int,size:4},{name:armor,type:float,size:4},{name:baseRotation,type:float,size:4},{name:controller,type:mindustry.entities.units.UnitController,size:-1},{name:elevation,type:float,size:4},{name:health,type:float,size:4},{name:isShooting,type:boolean,size:1},{name:mounts,type:"mindustry.entities.units.WeaponMount[]",size:-1},{name:rotation,type:float,size:4},{name:shield,type:float,size:4},{name:spawnedByCore,type:boolean,size:1},{name:stack,type:mindustry.type.ItemStack,size:-1},{name:statuses,type:arc.struct.Seq<mindustry.entities.units.StatusEntry>,size:-1},{name:team,type:mindustry.game.Team,size:-1},{name:type,type:mindustry.type.UnitType,size:-1},{name:x,type:float,size:4},{name:y,type:float,size:4}]}

annotations/src/main/resources/revisions/MinerUnit/0.json

@@ -0,0 +1 @@
+{fields:[{name:ammo,type:int,size:4},{name:armor,type:float,size:4},{name:controller,type:mindustry.entities.units.UnitController,size:-1},{name:elevation,type:float,size:4},{name:health,type:float,size:4},{name:isShooting,type:boolean,size:1},{name:mineTile,type:mindustry.world.Tile,size:-1},{name:mounts,type:"mindustry.entities.units.WeaponMount[]",size:-1},{name:rotation,type:float,size:4},{name:shield,type:float,size:4},{name:spawnedByCore,type:boolean,size:1},{name:stack,type:mindustry.type.ItemStack,size:-1},{name:statuses,type:arc.struct.Seq<mindustry.entities.units.StatusEntry>,size:-1},{name:team,type:mindustry.game.Team,size:-1},{name:type,type:mindustry.type.UnitType,size:-1},{name:x,type:float,size:4},{name:y,type:float,size:4}]}

annotations/src/main/resources/revisions/Player/0.json

@@ -0,0 +1 @@
+{fields:[{name:admin,type:boolean,size:1},{name:boosting,type:boolean,size:1},{name:color,type:arc.graphics.Color,size:-1},{name:mouseX,type:float,size:4},{name:mouseY,type:float,size:4},{name:name,type:java.lang.String,size:-1},{name:shooting,type:boolean,size:1},{name:team,type:mindustry.game.Team,size:-1},{name:typing,type:boolean,size:1},{name:unit,type:Unit,size:-1},{name:x,type:float,size:4},{name:y,type:float,size:4}]}

annotations/src/main/resources/revisions/Puddle/0.json

@@ -0,0 +1 @@
+{fields:[{name:amount,type:float,size:4},{name:generation,type:int,size:4},{name:liquid,type:mindustry.type.Liquid,size:-1},{name:tile,type:mindustry.world.Tile,size:-1},{name:x,type:float,size:4},{name:y,type:float,size:4}]}

annotations/src/main/resources/revisions/UnitEntity/0.json

@@ -0,0 +1 @@
+{fields:[{name:ammo,type:int,size:4},{name:armor,type:float,size:4},{name:controller,type:mindustry.entities.units.UnitController,size:-1},{name:elevation,type:float,size:4},{name:health,type:float,size:4},{name:isShooting,type:boolean,size:1},{name:mounts,type:"mindustry.entities.units.WeaponMount[]",size:-1},{name:rotation,type:float,size:4},{name:shield,type:float,size:4},{name:spawnedByCore,type:boolean,size:1},{name:stack,type:mindustry.type.ItemStack,size:-1},{name:statuses,type:arc.struct.Seq<mindustry.entities.units.StatusEntry>,size:-1},{name:team,type:mindustry.game.Team,size:-1},{name:type,type:mindustry.type.UnitType,size:-1},{name:x,type:float,size:4},{name:y,type:float,size:4}]}

annotations/src/main/resources/revisions/WeatherState/0.json

@@ -0,0 +1 @@
+{fields:[{name:intensity,type:float,size:4},{name:life,type:float,size:4},{name:opacity,type:float,size:4},{name:weather,type:mindustry.type.Weather,size:-1},{name:x,type:float,size:4},{name:y,type:float,size:4}]}

build.gradle

@@ -25,18 +25,18 @@ buildscript{
 }
 
 allprojects{
-    version = 'release'
     apply plugin: 'maven'
+    
+    version = 'release'
     group = 'com.github.Anuken'
 
     ext{
-        versionNumber = '5'
-        if(!project.hasProperty("versionModifier")) versionModifier = 'release'
+        versionNumber = '6'
+        if(!project.hasProperty("versionModifier")) versionModifier = 'pre-alpha'
         if(!project.hasProperty("versionType")) versionType = 'official'
         appName = 'Mindustry'
-        gdxVersion = '1.9.10'
-        roboVMVersion = '2.3.8'
         steamworksVersion = '891ed912791e01fe9ee6237a6497e5212b85c256'
+        rhinoVersion = 'eeb327d141146663ff3924bd20d2a5da8a6439cc'
 
         loadVersionProps = {
             return new Properties().with{p -> p.load(file('../core/assets/version.properties').newReader()); return p }
@@ -107,6 +107,7 @@ allprojects{
                 output += other.name.substring("bundle".length() + 1, other.name.lastIndexOf('.')) + "\n"
             }
             new File(project(':core').projectDir, 'assets/locales').text = output
+            new File(project(':core').projectDir, 'assets/basepartnames').text = new File(project(':core').projectDir, 'assets/baseparts/').list().join("\n")
         }
 
         writeVersion = {
@@ -146,6 +147,20 @@ allprojects{
 
             processorFile.text = text.toString().replace(".java", "").replace("/", ".").replace("\\", ".")
         }
+
+        writePlugins = {
+            new File(rootDir, "annotations/src/main/resources/META-INF/services/").mkdirs()
+            def processorFile = new File(rootDir, "annotations/src/main/resources/META-INF/services/com.sun.source.util.Plugin")
+            def text = new StringBuilder()
+            def files = new File(rootDir, "annotations/src/main/java")
+            files.eachFileRecurse(groovy.io.FileType.FILES){ file ->
+                if(file.name.endsWith(".java") && (file.text.contains(" implements Plugin"))){
+                    text.append(file.path.substring(files.path.length() + 1)).append("\n")
+                }
+            }
+
+            processorFile.text = text.toString().replace(".java", "").replace("/", ".").replace("\\", ".")
+        }
     }
 
     repositories{
@@ -157,24 +172,31 @@ allprojects{
         jcenter()
     }
 
-    tasks.withType(Javadoc).all{ enabled = false }
+    tasks.withType(JavaCompile){
+        sourceCompatibility = 1.8
+        targetCompatibility = 1.8
+        options.encoding = "UTF-8"
+        options.compilerArgs += ["-Xlint:deprecation"]
+    }
 }
 
 project(":desktop"){
     apply plugin: "java"
 
+    compileJava.options.fork = true
+
     dependencies{
-        compile project(":core")
+        implementation project(":core")
+        implementation arcModule("natives:natives-box2d-desktop")
+        implementation arcModule("natives:natives-desktop")
+        implementation arcModule("natives:natives-freetype-desktop")
+        implementation 'com.github.MinnDevelopment:java-discord-rpc:v2.0.1'
 
-        if(debugged()) compile project(":debug")
+        if(debugged()) implementation project(":debug")
 
-        compile "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-desktop"
-        compile "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-desktop"
+        implementation "com.github.Anuken:steamworks4j:$steamworksVersion"
 
-        compile "com.github.Anuken:steamworks4j:$steamworksVersion"
-
-        compile arcModule("backends:backend-sdl")
-        compile 'com.github.MinnDevelopment:java-discord-rpc:v2.0.1'
+        implementation arcModule("backends:backend-sdl")
     }
 }
 
@@ -200,26 +222,26 @@ project(":ios"){
     }
 
     dependencies{
-        compile project(":core")
+        implementation project(":core")
+
+        implementation arcModule("natives:natives-ios")
+        implementation arcModule("natives:natives-freetype-ios")
+        implementation arcModule("natives:natives-box2d-ios")
+        implementation arcModule("backends:backend-robovm")
+
         compileOnly project(":annotations")
-
-        compile arcModule("backends:backend-robovm")
-
-        compile "com.mobidevelop.robovm:robovm-rt:$roboVMVersion"
-        compile "com.mobidevelop.robovm:robovm-cocoatouch:$roboVMVersion"
-        compile "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-ios"
-        compile "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-ios"
     }
 }
 
 project(":core"){
-    apply plugin: "java"
+    apply plugin: "java-library"
 
     task preGen{
         outputs.upToDateWhen{ false }
         generateLocales()
         writeVersion()
         writeProcessors()
+        writePlugins()
     }
 
     task copyChangelog{
@@ -232,11 +254,11 @@ project(":core"){
 
             def androidLogList = loglines.findAll{ line -> !line.endsWith("]") || line.endsWith("[Mobile]") || line.endsWith("[Android]")}
             def result = ""
-            androidLogList.forEach({line ->
+            androidLogList.forEach{line ->
                 if(result.length() + line.length() + 1 < maxLength){
                     result += line + "\n"
                 }
-            })
+            }
             def changelogs = file("../fastlane/metadata/android/en-US/changelogs/")
             new File(changelogs, buildVersion + ".txt").text = (result)
             new File(changelogs, androidVersion + ".txt").text = (result)
@@ -246,12 +268,15 @@ project(":core"){
     dependencies{
         compileJava.dependsOn(preGen)
 
-        compile "org.lz4:lz4-java:1.4.1"
-        compile arcModule("arc-core")
-        compile arcModule("extensions:freetype")
-        compile arcModule("extensions:arcnet")
-        compile "org.mozilla:rhino:1.7.11"
-        if(localArc() && debugged()) compile arcModule("extensions:recorder")
+        api "org.lz4:lz4-java:1.4.1"
+        api arcModule("arc-core")
+        api arcModule("extensions:freetype")
+        api arcModule("extensions:box2d")
+        api arcModule("extensions:g3d")
+        api arcModule("extensions:fx")
+        api arcModule("extensions:arcnet")
+        api "com.github.Anuken:rhino:$rhinoVersion"
+        if(localArc() && debugged()) api arcModule("extensions:recorder")
 
         compileOnly project(":annotations")
         annotationProcessor project(":annotations")
@@ -262,8 +287,9 @@ project(":server"){
     apply plugin: "java"
 
     dependencies{
-        compile project(":core")
-        compile arcModule("backends:backend-headless")
+        implementation project(":core")
+        implementation arcModule("natives:natives-box2d-desktop")
+        implementation arcModule("backends:backend-headless")
     }
 }
 
@@ -274,13 +300,17 @@ project(":tests"){
         testImplementation project(":core")
         testImplementation "org.junit.jupiter:junit-jupiter-params:5.3.1"
         testImplementation "org.junit.jupiter:junit-jupiter-api:5.3.1"
+        testImplementation arcModule("backends:backend-headless")
+        testImplementation arcModule("natives:natives-box2d-desktop")
         testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:5.3.1"
-        compile arcModule("backends:backend-headless")
     }
 
     test{
         useJUnitPlatform()
         workingDir = new File("../core/assets")
+        testLogging {
+            exceptionFormat = 'full'
+        }
     }
 }
 
@@ -288,30 +318,31 @@ project(":tools"){
     apply plugin: "java"
 
     dependencies{
-        compile project(":core")
+        implementation project(":core")
 
-        compile "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-desktop"
-        compile "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-desktop"
-        compile "org.reflections:reflections:0.9.12"
+        implementation arcModule("natives:natives-desktop")
+        implementation arcModule("natives:natives-freetype-desktop")
+        implementation arcModule("natives:natives-box2d-desktop")
+        implementation arcModule("backends:backend-headless")
 
-        compile arcModule("backends:backend-sdl")
+        implementation "org.reflections:reflections:0.9.12"
     }
 }
 
 project(":annotations"){
-    apply plugin: "java"
+    apply plugin: "java-library"
 
     dependencies{
-        compile 'com.squareup:javapoet:1.12.1'
-        compile "com.github.Anuken.Arc:arc-core:$arcHash"
-        compile files("${System.getProperty('java.home')}/../lib/tools.jar")
+        implementation 'com.squareup:javapoet:1.12.1'
+        implementation "com.github.Anuken.Arc:arc-core:$arcHash"
+        implementation files("${System.getProperty('java.home')}/../lib/tools.jar")
     }
 }
 
 task deployAll{
     task cleanDeployOutput{
         doFirst{
-            if("${getBuildVersion()}" == "custom build" || "${getBuildVersion()}" == "") throw new IllegalArgumentException("----\n\nSET A BUILD NUMBER FIRST!\n\n----")
+            if(getBuildVersion() == "custom build" || getBuildVersion() == "") throw new IllegalArgumentException("----\n\nSET A BUILD NUMBER FIRST!\n\n----")
             if(!project.hasProperty("release")) throw new IllegalArgumentException("----\n\nSET THE RELEASE PROJECT PROPERTY FIRST!\n\n----")
 
             delete{

core/assets-raw/sprites/blocks/environment/pack.json

@@ -2,7 +2,7 @@
   duplicatePadding: true,
   combineSubdirectories: true,
   flattenPaths: true,
-  maxWidth: 2048,
-  maxHeight: 2048,
+  maxWidth: 4096,
+  maxHeight: 4096,
   fast: true
 }