Mod bugfixes

core/src/mindustry/world/blocks/distribution/Duct.java

@@ -6,6 +6,7 @@ import arc.math.*;
 import arc.math.geom.*;
 import arc.struct.*;
 import arc.util.*;
+import arc.util.io.*;
 import mindustry.annotations.Annotations.*;
 import mindustry.content.*;
 import mindustry.entities.units.*;
@@ -183,5 +184,25 @@ public class Duct extends Block implements Autotiler{
             next = front();
             nextc = next instanceof DuctBuild d ? d : null;
         }
+
+        @Override
+        public byte version(){
+            return 1;
+        }
+
+        @Override
+        public void write(Writes write){
+            super.write(write);
+            write.b(recDir);
+        }
+
+        @Override
+        public void read(Reads read, byte revision){
+            super.read(read, revision);
+            if(revision >= 1){
+                recDir = read.b();
+            }
+            current = items.first();
+        }
     }
 }

core/src/mindustry/world/blocks/distribution/DuctRouter.java

@@ -87,7 +87,7 @@ public class DuctRouter extends Block{
             if(current == null) return null;
 
             for(int i = -1; i <= 1; i++){
-                Building other = nearby(Mathf.mod(rotation + i + cdump, 4));
+                Building other = nearby(Mathf.mod(rotation + (((i + cdump + 1) % 3) - 1), 4));
                 if(other != null && other.team == team && other.acceptItem(this, current)){
                     return other;
                 }

core/src/mindustry/world/meta/Attribute.java

@@ -1,9 +1,11 @@
 package mindustry.world.meta;
 
+import arc.struct.*;
 import mindustry.*;
 
 public class Attribute{
     public static Attribute[] all = {};
+    public static ObjectMap<String, Attribute> map = new ObjectMap<>();
 
     public static final Attribute
     /** Heat content. Used for thermal generator yield. */
@@ -36,6 +38,11 @@ public class Attribute{
         return name;
     }
 
+    /** Never returns null, may throw an exception if not found. */
+    public static Attribute get(String name){
+        return map.getThrow(name, () -> new IllegalArgumentException("Unknown Attribute type: " + name));
+    }
+
     /** Automatically registers this attribute for use. Do not call after mod init. */
     public static Attribute add(String name){
         Attribute a = new Attribute(all.length, name);
@@ -43,6 +50,7 @@ public class Attribute{
         all = new Attribute[all.length + 1];
         System.arraycopy(prev, 0, all, 0, a.id);
         all[a.id] = a;
+        map.put(name, a);
         return a;
     }
 }