Merge remote-tracking branch 'upstream/master'

# Conflicts:
#	core/assets/bundles/bundle_ja.properties

.gitignore

@@ -1,5 +1,3 @@
-##Packr, build stuff
-
 logs/
 /core/assets/mindustry-saves/
 /core/assets/mindustry-maps/
@@ -13,8 +11,10 @@ logs/
 /desktop/gifexport/
 /core/lib/
 /core/assets-raw/sprites/generated/
+/core/assets-raw/sprites_out/
 /annotations/build/
-/kryonet/build/
+/annotations/out/
+/net/build/
 /tools/build/
 /tests/build/
 /server/build/

README.md

@@ -3,25 +3,24 @@
 [![Build Status](https://travis-ci.org/Anuken/Mindustry.svg?branch=master)](https://travis-ci.org/Anuken/Mindustry) 
 [![Discord](https://img.shields.io/discord/391020510269669376.svg)](https://discord.gg/mindustry)
 
-A pixelated sandbox tower defense game made using [LibGDX](https://libgdx.badlogicgames.com/). Winner of the [GDL Metal Monstrosity Jam](https://itch.io/jam/gdl---metal-monstrosity-jam).
+A sandbox tower defense game written in Java.
 
 _[Trello Board](https://trello.com/b/aE2tcUwF/mindustry-40-plans)_  
-_[Wiki](http://mindustry.wikia.com/wiki/Mindustry_Wiki)_  
-_[Discord](https://discord.gg/r8BkXNd)_  
+_[Wiki](http://mindustry.wikia.com/wiki/Mindustry_Wiki)_ 
 
 ### Building
 
 Bleeding-edge live builds are generated automatically for every commit. You can see them [here](https://jenkins.hellomouse.net/job/mindustry/).
 
 If you'd rather compile on your own, follow these instructions.
-First, make sure you have Java 8 and JDK 8 installed. Open a terminal in the root directory, and run the following commands:
+First, make sure you have Java 8 and JDK 8 installed. Open a terminal in the root directory, `cd` to the Mindustry folder and run the following commands:
 
 #### Windows
 
 _Running:_ `gradlew desktop:run`  
 _Building:_ `gradlew desktop:dist`
 
-#### Linux
+#### Linux/Mac OS
 
 _Running:_ `./gradlew desktop:run`  
 _Building:_ `./gradlew desktop:dist`

android/AndroidManifest.xml

@@ -17,6 +17,7 @@
             android:appCategory="game"
             android:label="@string/app_name"
             android:theme="@style/GdxTheme" android:fullBackupContent="@xml/backup_rules">
+        <meta-data android:name="android.max_aspect" android:value="2.1" />
         <activity
             android:name="io.anuke.mindustry.AndroidLauncher"
             android:label="@string/app_name"

android/build.gradle

@@ -8,7 +8,7 @@ buildscript {
     }
     
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.2.1'
+        classpath 'com.android.tools.build:gradle:3.3.0'
     }
 }
 
@@ -26,24 +26,22 @@ repositories {
 
 dependencies {
     implementation project(":core")
-    implementation project(":kryonet")
+    implementation project(":net")
     implementation 'com.android.support:support-v4:28.0.0'
     implementation 'org.sufficientlysecure:donations:2.5'
     implementation 'com.google.android.gms:play-services-auth:16.0.1'
 
-    implementation "com.badlogicgames.gdx:gdx-backend-android:$gdxVersion"
+    implementation arcModule("backends:backend-android")
     natives "com.badlogicgames.gdx:gdx-platform:$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"
-    implementation "com.badlogicgames.gdx:gdx-freetype:$gdxVersion"
     natives "com.badlogicgames.gdx:gdx-freetype-platform:$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"
-    implementation "com.badlogicgames.gdx:gdx-controllers-android:$gdxVersion"
 }
 
 task deploy(type: Copy){

android/proguard-project.txt

@@ -20,26 +20,10 @@
 #}
 
 -verbose
-
--dontwarn android.support.**
--dontwarn com.badlogic.gdx.backends.android.AndroidFragmentApplication
--dontwarn com.badlogic.gdx.utils.GdxBuild
--dontwarn com.badlogic.gdx.physics.box2d.utils.Box2DBuild
--dontwarn com.badlogic.gdx.jnigen.BuildTarget*
--dontwarn com.badlogic.gdx.graphics.g2d.freetype.FreetypeBuild
-
--keep class com.badlogic.gdx.controllers.android.AndroidControllers
-
--keepclassmembers class com.badlogic.gdx.backends.android.AndroidInput* {
-   <init>(com.badlogic.gdx.Application, android.content.Context, java.lang.Object, com.badlogic.gdx.backends.android.AndroidApplicationConfiguration);
-}
-
--keepclassmembers class com.badlogic.gdx.physics.box2d.World {
-   boolean contactFilter(long, long);
-   void    beginContact(long);
-   void    endContact(long);
-   void    preSolve(long, long);
-   void    postSolve(long, long);
-   boolean reportFixture(long);
-   float   reportRayFixture(long, float, float, float, float, float);
+-verbose
+-ignorewarnings
+-keep class io.anuke.mindustry.game.Rules
+-keep class io.anuke.mindustry.desktop.DesktopLauncher
+-keepclasseswithmembers public class * {
+    public static void main(java.lang.String[]);
 }

android/res/values-ru/strings.xml

@@ -5,7 +5,7 @@
     <string-array name="donation_google_catalog_values">
         <item>1 Доллар</item>
         <item>2 Доллара</item>
-        <item>5 Доллара</item>
+        <item>5 Долларов</item>
         <item>10 Долларов</item>
         <item>15 Долларов</item>
         <item>25 Долларов</item>

android/res/values-uk/strings.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <string name="app_name">Mindustry</string>
+    <string-array name="donation_google_catalog_values">
+        <item>1 Доллар</item>
+        <item>2 Доллара</item>
+        <item>5 Долларів</item>
+        <item>10 Долларів</item>
+        <item>15 Долларів</item>
+        <item>25 Долларів</item>
+        <item>50 Долларів</item>
+    </string-array>
+
+</resources>

android/src/io/anuke/mindustry/AndroidLauncher.java

@@ -11,25 +11,25 @@ import android.os.Bundle;
 import android.provider.Settings.Secure;
 import android.telephony.TelephonyManager;
 import android.util.Log;
-import com.badlogic.gdx.Gdx;
-import com.badlogic.gdx.backends.android.AndroidApplicationConfiguration;
-import com.badlogic.gdx.files.FileHandle;
-import com.badlogic.gdx.utils.Base64Coder;
 import com.google.android.gms.common.GoogleApiAvailability;
 import com.google.android.gms.common.GooglePlayServicesNotAvailableException;
 import com.google.android.gms.common.GooglePlayServicesRepairableException;
 import com.google.android.gms.security.ProviderInstaller;
-import io.anuke.kryonet.KryoClient;
-import io.anuke.kryonet.KryoServer;
+import io.anuke.arc.Core;
+import io.anuke.arc.backends.android.surfaceview.AndroidApplication;
+import io.anuke.arc.backends.android.surfaceview.AndroidApplicationConfiguration;
+import io.anuke.arc.files.FileHandle;
+import io.anuke.arc.function.Consumer;
+import io.anuke.arc.scene.ui.layout.Unit;
+import io.anuke.arc.util.Strings;
+import io.anuke.arc.util.serialization.Base64Coder;
+import io.anuke.net.KryoClient;
+import io.anuke.net.KryoServer;
 import io.anuke.mindustry.core.Platform;
 import io.anuke.mindustry.game.Saves.SaveSlot;
 import io.anuke.mindustry.io.SaveIO;
 import io.anuke.mindustry.net.Net;
 import io.anuke.mindustry.ui.dialogs.FileChooser;
-import io.anuke.ucore.function.Consumer;
-import io.anuke.ucore.scene.ui.layout.Unit;
-import io.anuke.ucore.util.Bundles;
-import io.anuke.ucore.util.Strings;
 
 import java.io.File;
 import java.io.FileInputStream;
@@ -39,7 +39,7 @@ import java.util.ArrayList;
 
 import static io.anuke.mindustry.Vars.*;
 
-public class AndroidLauncher extends PatchedAndroidApplication{
+public class AndroidLauncher extends AndroidApplication{
     public static final int PERMISSION_REQUEST_CODE = 1;
     boolean doubleScaleTablets = true;
     FileChooser chooser;
@@ -49,6 +49,7 @@ public class AndroidLauncher extends PatchedAndroidApplication{
         super.onCreate(savedInstanceState);
         AndroidApplicationConfiguration config = new AndroidApplicationConfiguration();
         config.useImmersiveMode = true;
+        config.depth = 0;
         Platform.instance = new Platform(){
 
             @Override
@@ -161,23 +162,23 @@ public class AndroidLauncher extends PatchedAndroidApplication{
                 InputStream inStream;
                 if(myFile != null) inStream = new FileInputStream(myFile);
                 else inStream = getContentResolver().openInputStream(uri);
-                Gdx.app.postRunnable(() -> {
+                Core.app.post(() -> {
                     if(save){ //open save
                         System.out.println("Opening save.");
-                        FileHandle file = Gdx.files.local("temp-save." + saveExtension);
+                        FileHandle file = Core.files.local("temp-save." + saveExtension);
                         file.write(inStream, false);
                         if(SaveIO.isSaveValid(file)){
                             try{
                                 SaveSlot slot = control.saves.importSave(file);
                                 ui.load.runLoadSave(slot);
                             }catch(IOException e){
-                                ui.showError(Bundles.format("text.save.import.fail", Strings.parseException(e, false)));
+                                ui.showError(Core.bundle.format("text.save.import.fail", Strings.parseException(e, false)));
                             }
                         }else{
                             ui.showError("$text.save.import.invalid");
                         }
                     }else if(map){ //open map
-                        Gdx.app.postRunnable(() -> {
+                        Core.app.post(() -> {
                             System.out.println("Opening map.");
                             if(!ui.editor.isShown()){
                                 ui.editor.show();

android/src/io/anuke/mindustry/PatchedAndroidApplication.java

@@ -1,20 +0,0 @@
-package io.anuke.mindustry;
-
-import com.badlogic.gdx.backends.android.AndroidApplication;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-
-public class PatchedAndroidApplication extends AndroidApplication {
-    private final ExecutorService exec = Executors.newSingleThreadExecutor();
-
-    @Override
-    protected void onPause () {
-        if(useImmersiveMode) {
-            exec.submit(() -> {
-                try {Thread.sleep(100);} catch (InterruptedException ignored) {}
-                graphics.onDrawFrame(null);
-            });
-        }
-        super.onPause();
-    }
-}

annotations/src/main/java/io/anuke/annotations/Annotations.java

@@ -14,6 +14,21 @@ public class Annotations{
 
     }
 
+    /** Marks a class as a special value type struct. Class name must end in 'Struct'.*/
+    @Target(ElementType.TYPE)
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface Struct{
+
+    }
+
+    /**Marks a field of a struct. Optional.*/
+    @Target(ElementType.FIELD)
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface StructField{
+        /**Size of a struct field in bits. Not valid on booleans or floating point numbers.*/
+        int value();
+    }
+
     public enum PacketPriority{
         /** Gets put in a queue and processed if not connected. */
         normal,

annotations/src/main/java/io/anuke/annotations/RemoteMethodAnnotationProcessor.java

@@ -28,6 +28,8 @@ import java.util.stream.Collectors;
 public class RemoteMethodAnnotationProcessor extends AbstractProcessor{
     /** Maximum size of each event packet. */
     public static final int maxPacketSize = 4096;
+    /** Warning on top of each autogenerated file.*/
+    public static final String autogenWarning = "Autogenerated file. Do not modify!\n";
     /** Name of the base package to put all the generated classes. */
     private static final String packageName = "io.anuke.mindustry.gen";
 
@@ -136,6 +138,7 @@ public class RemoteMethodAnnotationProcessor extends AbstractProcessor{
 
                 //create class for storing unique method hash
                 TypeSpec.Builder hashBuilder = TypeSpec.classBuilder("MethodHash").addModifiers(Modifier.PUBLIC);
+                hashBuilder.addJavadoc(autogenWarning);
                 hashBuilder.addField(FieldSpec.builder(int.class, "HASH", Modifier.STATIC, Modifier.PUBLIC, Modifier.FINAL)
                         .initializer("$1L", Objects.hash(methods)).build());
 

annotations/src/main/java/io/anuke/annotations/RemoteReadGenerator.java

@@ -2,8 +2,6 @@ package io.anuke.annotations;
 
 import com.squareup.javapoet.*;
 import io.anuke.annotations.IOFinder.ClassSerializer;
-import io.anuke.annotations.MethodEntry;
-import io.anuke.annotations.Utils;
 
 import javax.lang.model.element.Modifier;
 import javax.lang.model.element.TypeElement;
@@ -28,7 +26,7 @@ public class RemoteReadGenerator{
     /**
      * Generates a class for reading remote invoke packets.
      *
-     * @param entries List of methods to use/
+     * @param entries List of methods to use.
      * @param className Simple target class name.
      * @param packageName Full target package name.
      * @param needsPlayer Whether this read method requires a reference to the player sender.
@@ -37,6 +35,7 @@ public class RemoteReadGenerator{
             throws IllegalAccessException, InvocationTargetException, InstantiationException, NoSuchMethodException, IOException{
 
         TypeSpec.Builder classBuilder = TypeSpec.classBuilder(className).addModifiers(Modifier.PUBLIC);
+        classBuilder.addJavadoc(RemoteMethodAnnotationProcessor.autogenWarning);
 
         //create main method builder
         MethodSpec.Builder readMethod = MethodSpec.methodBuilder("readPacket")
@@ -51,7 +50,7 @@ public class RemoteReadGenerator{
             Constructor<TypeName> cons = TypeName.class.getDeclaredConstructor(String.class);
             cons.setAccessible(true);
 
-            TypeName playerType = cons.newInstance("io.anuke.mindustry.entities.Player");
+            TypeName playerType = cons.newInstance("io.anuke.mindustry.entities.type.Player");
             //add player parameter
             readMethod.addParameter(playerType, "player");
         }

annotations/src/main/java/io/anuke/annotations/RemoteWriteGenerator.java

@@ -29,6 +29,7 @@ public class RemoteWriteGenerator{
         for(ClassEntry entry : entries){
             //create builder
             TypeSpec.Builder classBuilder = TypeSpec.classBuilder(entry.name).addModifiers(Modifier.PUBLIC);
+            classBuilder.addJavadoc(RemoteMethodAnnotationProcessor.autogenWarning);
 
             //add temporary write buffer
             classBuilder.addField(FieldSpec.builder(ByteBuffer.class, "TEMP_BUFFER", Modifier.STATIC, Modifier.PRIVATE, Modifier.FINAL)
@@ -79,7 +80,7 @@ public class RemoteWriteGenerator{
                 return;
             }
 
-            if(!elem.getParameters().get(0).asType().toString().equals("io.anuke.mindustry.entities.Player")){
+            if(!elem.getParameters().get(0).asType().toString().equals("io.anuke.mindustry.entities.type.Player")){
                 Utils.messager.printMessage(Kind.ERROR, "Client invoke methods should have a first parameter of type Player.", elem);
                 return;
             }
@@ -129,7 +130,7 @@ public class RemoteWriteGenerator{
         method.beginControlFlow("if(" + getCheckString(methodEntry.where) + ")");
 
         //add statement to create packet from pool
-        method.addStatement("$1N packet = $2N.obtain($1N.class, $1N::new)", "io.anuke.mindustry.net.Packets.InvokePacket", "io.anuke.ucore.util.Pooling");
+        method.addStatement("$1N packet = $2N.obtain($1N.class, $1N::new)", "io.anuke.mindustry.net.Packets.InvokePacket", "io.anuke.arc.util.pooling.Pools");
         //assign buffer
         method.addStatement("packet.writeBuffer = TEMP_BUFFER");
         //assign priority

annotations/src/main/java/io/anuke/annotations/SerializeAnnotationProcessor.java

@@ -12,6 +12,7 @@ import javax.lang.model.util.ElementFilter;
 import java.io.DataInput;
 import java.io.DataOutput;
 import java.io.IOException;
+import java.lang.reflect.Field;
 import java.util.List;
 import java.util.Set;
 
@@ -46,6 +47,7 @@ public class SerializeAnnotationProcessor extends AbstractProcessor{
 
             TypeSpec.Builder classBuilder = TypeSpec.classBuilder(className).addModifiers(Modifier.PUBLIC);
             classBuilder.addAnnotation(AnnotationSpec.builder(SuppressWarnings.class).addMember("value", "\"unchecked\"").build());
+            classBuilder.addJavadoc(RemoteMethodAnnotationProcessor.autogenWarning);
             MethodSpec.Builder method = MethodSpec.methodBuilder("init").addModifiers(Modifier.PUBLIC, Modifier.STATIC);
 
             for(TypeElement elem : elements){
@@ -53,20 +55,18 @@ public class SerializeAnnotationProcessor extends AbstractProcessor{
 
                 TypeSpec.Builder serializer = TypeSpec.anonymousClassBuilder("")
                 .addSuperinterface(ParameterizedTypeName.get(
-                ClassName.bestGuess("io.anuke.ucore.io.TypeSerializer"), type));
+                ClassName.bestGuess("io.anuke.arc.Settings.TypeSerializer"), type));
 
                 MethodSpec.Builder writeMethod = MethodSpec.methodBuilder("write")
                 .returns(void.class)
                 .addParameter(DataOutput.class, "stream")
                 .addParameter(type, "object")
-                .addAnnotation(Override.class)
                 .addException(IOException.class)
                 .addModifiers(Modifier.PUBLIC);
 
                 MethodSpec.Builder readMethod = MethodSpec.methodBuilder("read")
                 .returns(type)
                 .addParameter(DataInput.class, "stream")
-                .addAnnotation(Override.class)
                 .addException(IOException.class)
                 .addModifiers(Modifier.PUBLIC);
 
@@ -84,8 +84,8 @@ public class SerializeAnnotationProcessor extends AbstractProcessor{
                         writeMethod.addStatement("stream.write" + capName + "(object." + name + ")");
                         readMethod.addStatement("object." + name + "= stream.read" + capName + "()");
                     }else{
-                        writeMethod.addStatement("io.anuke.ucore.core.Settings.getSerializer(" + typeName+ ".class).write(stream, object." + name + ")");
-                        readMethod.addStatement("object." + name + " = (" +typeName+")io.anuke.ucore.core.Settings.getSerializer(" + typeName+ ".class).read(stream)");
+                        writeMethod.addStatement("io.anuke.arc.Core.settings.getSerializer(" + typeName+ ".class).write(stream, object." + name + ")");
+                        readMethod.addStatement("object." + name + " = (" +typeName+")io.anuke.arc.Core.settings.getSerializer(" + typeName+ ".class).read(stream)");
                     }
                 }
 
@@ -94,7 +94,18 @@ public class SerializeAnnotationProcessor extends AbstractProcessor{
                 serializer.addMethod(writeMethod.build());
                 serializer.addMethod(readMethod.build());
 
-                method.addStatement("io.anuke.ucore.core.Settings.setSerializer($N, $L)",  Utils.elementUtils.getBinaryName(elem).toString().replace('$', '.') + ".class", serializer.build());
+                method.addStatement("io.anuke.arc.Core.settings.setSerializer($N, $L)",  Utils.elementUtils.getBinaryName(elem).toString().replace('$', '.') + ".class", serializer.build());
+
+                String sname = type.toString().substring(type.toString().lastIndexOf('.') + 1);
+
+                name(writeMethod, "write" + sname);
+                name(readMethod, "read" + sname);
+
+                writeMethod.addModifiers(Modifier.STATIC);
+                readMethod.addModifiers(Modifier.STATIC);
+
+                classBuilder.addMethod(writeMethod.build());
+                classBuilder.addMethod(readMethod.build());
             }
 
             classBuilder.addMethod(method.build());
@@ -108,4 +119,14 @@ public class SerializeAnnotationProcessor extends AbstractProcessor{
             throw new RuntimeException(e);
         }
     }
+
+    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/io/anuke/annotations/StructAnnotationProcessor.java

@@ -0,0 +1,229 @@
+package io.anuke.annotations;
+
+import com.squareup.javapoet.JavaFile;
+import com.squareup.javapoet.MethodSpec;
+import com.squareup.javapoet.TypeName;
+import com.squareup.javapoet.TypeSpec;
+import io.anuke.annotations.Annotations.Struct;
+import io.anuke.annotations.Annotations.StructField;
+
+import javax.annotation.processing.*;
+import javax.lang.model.SourceVersion;
+import javax.lang.model.element.Modifier;
+import javax.lang.model.element.TypeElement;
+import javax.lang.model.element.VariableElement;
+import javax.lang.model.type.TypeKind;
+import javax.lang.model.util.ElementFilter;
+import javax.tools.Diagnostic.Kind;
+import java.util.List;
+import java.util.Set;
+
+/**Generates ""value types"" classes that are packed into integer primitives of the most aproppriate size.
+ * It would be nice if Java didn't make crazy hacks like this necessary.*/
+@SupportedSourceVersion(SourceVersion.RELEASE_8)
+@SupportedAnnotationTypes({
+    "io.anuke.annotations.Annotations.Struct"
+})
+public class StructAnnotationProcessor extends AbstractProcessor{
+    /** Name of the base package to put all the generated classes. */
+    private static final String packageName = "io.anuke.mindustry.gen";
+    private int round;
+
+    @Override
+    public synchronized void init(ProcessingEnvironment processingEnv){
+        super.init(processingEnv);
+        //put all relevant utils into utils class
+        Utils.typeUtils = processingEnv.getTypeUtils();
+        Utils.elementUtils = processingEnv.getElementUtils();
+        Utils.filer = processingEnv.getFiler();
+        Utils.messager = processingEnv.getMessager();
+    }
+
+    @Override
+    public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv){
+        if(round++ != 0) return false; //only process 1 round
+
+        try{
+            Set<TypeElement> elements = ElementFilter.typesIn(roundEnv.getElementsAnnotatedWith(Struct.class));
+
+            for(TypeElement elem : elements){
+
+                if(!elem.getSimpleName().toString().endsWith("Struct")){
+                    Utils.messager.printMessage(Kind.ERROR, "All classes annotated with @Struct must have their class names end in 'Struct'.", elem);
+                    continue;
+                }
+
+                String structName = elem.getSimpleName().toString().substring(0, elem.getSimpleName().toString().length() - "Struct".length());
+                String structParam = structName.toLowerCase();
+
+                TypeSpec.Builder classBuilder = TypeSpec.classBuilder(structName)
+                    .addModifiers(Modifier.FINAL, Modifier.PUBLIC);
+
+                try{
+                    List<VariableElement> variables = ElementFilter.fieldsIn(elem.getEnclosedElements());
+                    int structSize = variables.stream().mapToInt(StructAnnotationProcessor::varSize).sum();
+                    int structTotalSize = (structSize <= 8 ? 8 : structSize <= 16 ? 16 : structSize <= 32 ? 32 : 64);
+
+                    if(variables.size() == 0){
+                        Utils.messager.printMessage(Kind.ERROR, "making a struct with no fields is utterly pointles.", elem);
+                        continue;
+                    }
+
+                    //obtain type which will be stored
+                    Class<?> structType = typeForSize(structSize);
+
+                    //[constructor] get(fields...) : structType
+                    MethodSpec.Builder constructor = MethodSpec.methodBuilder("get")
+                    .addModifiers(Modifier.STATIC, Modifier.PUBLIC)
+                    .returns(structType);
+
+                    StringBuilder cons = new StringBuilder();
+                    StringBuilder doc = new StringBuilder();
+                    doc.append("Bits used: ").append(structSize).append(" / ").append(structTotalSize).append("\n");
+
+                    int offset = 0;
+                    for(VariableElement var : variables){
+                        int size = varSize(var);
+                        TypeName varType = TypeName.get(var.asType());
+                        String varName = var.getSimpleName().toString();
+
+                        //add val param to constructor
+                        constructor.addParameter(varType, varName);
+
+                        //[get] field(structType) : fieldType
+                        MethodSpec.Builder getter = MethodSpec.methodBuilder(var.getSimpleName().toString())
+                            .addModifiers(Modifier.STATIC, Modifier.PUBLIC)
+                            .returns(varType)
+                            .addParameter(structType, structParam);
+                        //[set] field(structType, fieldType) : structType
+                        MethodSpec.Builder setter = MethodSpec.methodBuilder(var.getSimpleName().toString())
+                            .addModifiers(Modifier.STATIC, Modifier.PUBLIC)
+                            .returns(structType)
+                            .addParameter(structType, structParam).addParameter(varType, "value");
+
+                        //[getter]
+                        if(varType == TypeName.BOOLEAN){
+                            //bools: single bit, is simplified
+                            getter.addStatement("return ($L & (1L << $L)) != 0", structParam, offset);
+                        }else if(varType == TypeName.FLOAT){
+                            //floats: need conversion
+                            getter.addStatement("return Float.intBitsToFloat((int)(($L >>> $L) & $L))", structParam, offset, bitString(size, structTotalSize));
+                        }else{
+                            //bytes, shorts, chars, ints
+                            getter.addStatement("return ($T)(($L >>> $L) & $L)", varType, structParam, offset, bitString(size, structTotalSize));
+                        }
+
+                        //[setter] + [constructor building]
+                        if(varType == TypeName.BOOLEAN){
+                            cons.append(" | (").append(varName).append(" ? ").append("1L << ").append(offset).append("L : 0)");
+
+                            //bools: single bit, needs special case to clear things
+                            setter.beginControlFlow("if(value)");
+                            setter.addStatement("return ($T)(($L & ~(1L << $LL)))", structType, structParam, offset);
+                            setter.nextControlFlow("else");
+                            setter.addStatement("return ($T)(($L & ~(1L << $LL)) | (1L << $LL))", structType, structParam, offset, offset);
+                            setter.endControlFlow();
+                        }else if(varType == TypeName.FLOAT){
+                            cons.append(" | (").append("(").append(structType).append(")").append("Float.floatToIntBits(").append(varName).append(") << ").append(offset).append("L)");
+
+                            //floats: need conversion
+                            setter.addStatement("return ($T)(($L & $L) | (($T)Float.floatToIntBits(value) << $LL))", structType, structParam, bitString(offset, size, structTotalSize), structType, offset);
+                        }else{
+                            cons.append(" | (").append("(").append(structType).append(")").append(varName).append(" << ").append(offset).append("L)");
+
+                            //bytes, shorts, chars, ints
+                            setter.addStatement("return ($T)(($L & $L) | (($T)value << $LL))", structType, structParam, bitString(offset, size, structTotalSize), structType, offset);
+                        }
+
+                        doc.append("<br>  ").append(varName).append(" [").append(offset).append("..").append(size + offset).append("]\n");
+
+                        //add finished methods
+                        classBuilder.addMethod(getter.build());
+                        classBuilder.addMethod(setter.build());
+
+                        offset += size;
+                    }
+
+                    classBuilder.addJavadoc(doc.toString());
+
+                    //add constructor final statement + add to class and build
+                    constructor.addStatement("return ($T)($L)", structType, cons.toString().substring(3));
+                    classBuilder.addMethod(constructor.build());
+
+                    JavaFile.builder(packageName, classBuilder.build()).build().writeTo(Utils.filer);
+                }catch(IllegalArgumentException e){
+                    e.printStackTrace();
+                    Utils.messager.printMessage(Kind.ERROR, e.getMessage(), elem);
+                }
+            }
+
+            return true;
+        }catch(Exception e){
+            e.printStackTrace();
+            throw new RuntimeException(e);
+        }
+    }
+
+    static String bitString(int offset, int size, int totalSize){
+        StringBuilder builder = new StringBuilder();
+        for(int i = 0; i < offset; i++) builder.append('0');
+        for(int i = 0; i < size; i++) builder.append('1');
+        for(int i = 0; i < totalSize - size - offset; i++) builder.append('0');
+        return "0b" + builder.reverse().toString() + "L";
+    }
+
+    static String bitString(int size, int totalSize){
+        StringBuilder builder = new StringBuilder();
+        for(int i = 0; i < size; i++) builder.append('1');
+        for(int i = 0; i < totalSize - size; i++) builder.append('0');
+        return "0b" + builder.reverse().toString() + "L";
+    }
+
+    static int varSize(VariableElement var) throws IllegalArgumentException{
+        if(!var.asType().getKind().isPrimitive()){
+            throw new IllegalArgumentException("All struct fields must be primitives: " + var);
+        }
+
+        StructField an = var.getAnnotation(StructField.class);
+        if(var.asType().getKind() == TypeKind.BOOLEAN && an != null && an.value() != 1){
+            throw new IllegalArgumentException("Booleans can only be one bit long... why would you do this?");
+        }
+
+        if(var.asType().getKind() == TypeKind.FLOAT && an != null && an.value() != 32){
+            throw new IllegalArgumentException("Float size can't be changed. Very sad.");
+        }
+
+        return an == null ? typeSize(var.asType().getKind()) : an.value();
+    }
+
+    static Class<?> typeForSize(int size) throws IllegalArgumentException{
+        if(size <= 8){
+            return byte.class;
+        }else if(size <= 16){
+            return short.class;
+        }else if(size <= 32){
+            return int.class;
+        }else if(size <= 64){
+            return long.class;
+        }
+        throw new IllegalArgumentException("Too many fields, must fit in 64 bits. Curent size: " + size);
+    }
+
+    /**returns a type's element size in bits.*/
+    static int typeSize(TypeKind kind) throws IllegalArgumentException{
+        switch(kind){
+            case BOOLEAN:
+                return 1;
+            case BYTE:
+                return 8;
+            case SHORT:
+                return 16;
+            case FLOAT:
+            case CHAR:
+            case INT:
+                return 32;
+            default:
+                throw new IllegalArgumentException("Invalid type kind: " + kind + ". Note that doubles and longs are not supported.");
+        }
+    }
+}

annotations/src/main/resources/META-INF/services/javax.annotation.processing.Processor

@@ -1,2 +1,3 @@
 io.anuke.annotations.RemoteMethodAnnotationProcessor
 io.anuke.annotations.SerializeAnnotationProcessor
+io.anuke.annotations.StructAnnotationProcessor

build.gradle

@@ -6,6 +6,7 @@ buildscript{
         maven{ url "https://oss.sonatype.org/content/repositories/snapshots/" }
         jcenter()
     }
+
     dependencies{
         classpath 'com.mobidevelop.robovm:robovm-gradle-plugin:2.3.5'
         classpath "com.badlogicgames.gdx:gdx-tools:1.9.9"
@@ -24,7 +25,38 @@ allprojects{
         appName = 'Mindustry'
         gdxVersion = '1.9.9'
         roboVMVersion = '2.3.0'
-        uCoreVersion = '7ffeb2a9c754f4d31ca13e02dd857876b0707dc5'
+        arcHash = null
+        
+        debugged = {
+            return new File(projectDir.parent, '../debug').exists() && System.properties["release"] == null
+        }
+
+        localArc = {
+            return (System.properties["release"] == null || System.properties["release"] == "false") && new File(projectDir.parent, '../Arc').exists()
+        }
+
+        getArcHash = {
+            //get latest commit hash from gtihub since JITPack's '-snapshot' version doesn't work correctly
+            if(arcHash == null){
+                try{
+                    arcHash = 'git ls-remote https://github.com/Anuken/Arc.git'.execute().text.split("\t")[0]
+                }catch(e){
+                    e.printStackTrace()
+                    arcHash = "-SNAPSHOT";
+                }
+            }
+            return arcHash
+        }
+
+        arcModule = { String name ->
+            if(localArc()){
+                return project(":Arc:$name")
+            }else{
+                //skip to last submodule
+                if(name.contains(':')) name = name.split(':').last()
+                return "com.github.Anuken.Arc:$name:${getArcHash()}"
+            }
+        }
 
         getVersionString = {
             String buildVersion = getBuildVersion()
@@ -59,7 +91,6 @@ allprojects{
             }catch(Exception ignored){}
 
             if(pfile.exists()){
-
                 props.load(new FileInputStream(pfile))
 
                 String buildid = getBuildVersion()
@@ -88,13 +119,14 @@ project(":desktop"){
 
     dependencies{
         compile project(":core")
-        compile project(":kryonet")
-        if(new File(projectDir.parent, '../debug').exists() && System.properties["release"] == null) compile project(":debug")
+        compile project(":net")
+        
+        if(debugged()) compile project(":debug")
 
-        compile "com.badlogicgames.gdx:gdx-backend-lwjgl3:$gdxVersion"
         compile "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-desktop"
-        compile "com.badlogicgames.gdx:gdx-controllers-lwjgl3:$gdxVersion"
         compile "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-desktop"
+
+        compile arcModule("backends:backend-lwjgl3")
         compile 'com.github.MinnDevelopment:java-discord-rpc:v2.0.0'
     }
 }
@@ -103,24 +135,6 @@ project(":ios"){
     apply plugin: "java"
     apply plugin: "robovm"
 
-    task copyGen{
-        doLast{
-            copy{
-                from("../core/build/classes/java/main/io/anuke/mindustry/gen/"){
-                    include "**/*.java"
-                }
-
-                into "../core/src/io/anuke/mindustry/gen"
-            }
-        }
-
-        doFirst{
-            delete{
-                delete "../core/src/io/anuke/mindustry/gen/"
-            }
-        }
-    }
-
     task incrementConfig{
         def vfile = file('robovm.properties')
 
@@ -138,18 +152,14 @@ project(":ios"){
         props.store(vfile.newWriter(), null)
     }
 
-    build.dependsOn(incrementConfig)
-    if(file('robovm.properties').exists()){
-        build.dependsOn(copyGen)
-    }
-
     dependencies{
         compile project(":core")
-        implementation project(":kryonet")
+        compile project(":net")
 
+        compile arcModule("backends:backend-robovm")
+        
         compile "com.mobidevelop.robovm:robovm-rt:$roboVMVersion"
         compile "com.mobidevelop.robovm:robovm-cocoatouch:$roboVMVersion"
-        compile "com.badlogicgames.gdx:gdx-backend-robovm:$gdxVersion"
         compile "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-ios"
         compile "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-ios"
     }
@@ -162,25 +172,33 @@ project(":core"){
         generateLocales()
     }
 
+    task cleanGen{
+        doFirst{
+            delete{
+                delete "../core/src/io/anuke/mindustry/gen/"
+            }
+        }
+    }
+
+    task copyGen{
+        doLast{
+            copy{
+                from("../core/build/classes/java/main/io/anuke/mindustry/gen/"){
+                    include "**/*.java"
+                }
+
+                into "../core/src/io/anuke/mindustry/gen"
+            }
+        }
+    }
+
     dependencies{
-        build.finalizedBy(finish)
+        compileJava.dependsOn(cleanGen)
+        compileJava.finalizedBy(copyGen)
 
-        def comp = System.properties["release"] == null || System.properties["release"] == "false"
-        if(!comp) println("Note: Compiling release build.")
-
-        if(new File(projectDir.parent, '../uCore').exists() && comp){
-            compile project(":uCore")
-        }else{
-            compile "com.github.anuken:ucore:$uCoreVersion"
-        }
-
-        if(new File(projectDir.parent, '../GDXGifRecorder').exists() && comp){
-            compile project(":GDXGifRecorder")
-        }
-
-        compile "com.badlogicgames.gdx:gdx:$gdxVersion"
-        compile "com.badlogicgames.gdx:gdx-controllers:$gdxVersion"
-        compile "com.badlogicgames.gdx:gdx-freetype:$gdxVersion"
+        compile arcModule("arc-core")
+        compile arcModule("extensions:freetype")
+        if(localArc() && debugged()) compile arcModule("extensions:recorder")
 
         compileOnly project(":annotations")
         annotationProcessor project(":annotations")
@@ -190,18 +208,10 @@ project(":core"){
 project(":server"){
     apply plugin: "java"
 
-    configurations{
-        if(findProject(":android") != null){
-            compile.exclude module: android
-        }
-    }
-
     dependencies{
-
         compile project(":core")
-        compile project(":kryonet")
-        compile "com.badlogicgames.gdx:gdx-backend-headless:$gdxVersion"
-        compile "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-desktop"
+        compile project(":net")
+        compile arcModule("backends:backend-headless")
     }
 }
 
@@ -210,10 +220,10 @@ project(":tests"){
 
     dependencies{
         testImplementation project(":core")
-        testImplementation('org.junit.jupiter:junit-jupiter-api:5.1.0')
-        testRuntimeOnly('org.junit.jupiter:junit-jupiter-engine:5.1.0')
-        testImplementation "com.badlogicgames.gdx:gdx-backend-headless:$gdxVersion"
-        testImplementation "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-desktop"
+        testImplementation "org.junit.jupiter:junit-jupiter-params:5.3.1"
+        testImplementation "org.junit.jupiter:junit-jupiter-api:5.3.1"
+        testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:5.3.1"
+        compile arcModule("backends:backend-headless")
     }
 
     test{
@@ -238,13 +248,13 @@ project(":annotations"){
     }
 }
 
-project(":kryonet"){
+project(":net"){
     apply plugin: "java"
 
     dependencies{
         compile project(":core")
         compile "org.lz4:lz4-java:1.4.1"
-        compile 'com.github.Anuken:kryonet:53b10247b1'
+        compile 'com.github.Anuken:kryonet:a64d2280880e80566ca1bdaffa55de43e51cad38'
         compile 'com.github.Anuken:WaifUPnP:05eb46bc577fd7674596946ba288c96c0cedd893'
     }
-}
+}