Patch ChunkProviderServer.loadedChunkHashMap in runtime, fix #1

build.gradle

@@ -41,17 +41,14 @@ minecraft {
     srgExtra "PK: org/bukkit/craftbukkit org/bukkit/craftbukkit/v1_7_R4"
 }
 
-group = 'net.minecraftforge'
+group = 'pw.prok.kcauldron'
-ext.mcVersion = "1.7.10"
+archivesBaseName = 'kcauldron'
-ext.cauldronVersion = "2"
-ext.forgeVersion = "1403"
-ext.bukkitVersion = "1"
-ext.revision = "54"
-version = "${mcVersion}-${cauldronVersion}.${forgeVersion}.${bukkitVersion}.${revision}"
 
-jenkins {
+ext.mcVersion = "1.7.10"
-    job = 'Cauldron'
+ext.cauldronVersion = "3"
-}
+ext.forgeVersion = "1403"
+ext.revision = "57"
+version = "${mcVersion}-${cauldronVersion}.${forgeVersion}.${revision}"
 
 launch4j {
     jreMinVersion = '1.6.0'
@@ -63,8 +60,8 @@ tasks.packageUniversal {
 
 tasks.packageUniversal.manifest { 
     attributes([
-    'Implementation-Vendor': 'Cauldron',
+    'Implementation-Vendor': 'Prototik',
-    'Implementation-Title': 'Cauldron',
+    'Implementation-Title': 'KCauldron',
     'Implementation-Version': 'KCauldron-'+project.version,
     'Forge-Version': '10.13.3.1403',
     'Specification-Vendor': 'Bukkit Team',

patches/cpw/mods/fml/relauncher/CoreModManager.java.patch

@@ -1,6 +1,41 @@
 --- ../src-base/minecraft/cpw/mods/fml/relauncher/CoreModManager.java
 +++ ../src-work/minecraft/cpw/mods/fml/relauncher/CoreModManager.java
-@@ -153,6 +153,9 @@
+@@ -27,10 +27,14 @@
+ import java.util.Map;
+ import java.util.jar.Attributes;
+ import java.util.jar.JarFile;
++
++import kcauldron.KCauldonClassTransformer;
+ import net.minecraft.launchwrapper.ITweaker;
+ import net.minecraft.launchwrapper.Launch;
+ import net.minecraft.launchwrapper.LaunchClassLoader;
++
+ import org.apache.logging.log4j.Level;
++
+ import com.google.common.base.Strings;
+ import com.google.common.base.Throwables;
+ import com.google.common.collect.ImmutableList;
+@@ -38,6 +42,7 @@
+ import com.google.common.collect.Maps;
+ import com.google.common.collect.ObjectArrays;
+ import com.google.common.primitives.Ints;
++
+ import cpw.mods.fml.common.FMLLog;
+ import cpw.mods.fml.common.asm.transformers.ModAccessTransformer;
+ import cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker;
+@@ -94,6 +99,11 @@
+         @Override
+         public void injectIntoClassLoader(LaunchClassLoader classLoader)
+         {
++        	// Cauldron start
++        	// Register own ClassTransformer for some needs
++        	classLoader.registerTransformer("kcauldron.KCauldonClassTransformer");
++        	KCauldonClassTransformer.DEV = deobfuscatedEnvironment;
++        	// Cauldron end
+             FMLRelaunchLog.fine("Injecting coremod %s {%s} class transformers", name, coreModInstance.getClass().getName());
+             if (coreModInstance.getASMTransformerClass() != null) for (String transformer : coreModInstance.getASMTransformerClass())
+             {
+@@ -153,6 +163,9 @@
  
      }
  
@@ -10,7 +45,7 @@
      public static void handleLaunch(File mcDir, LaunchClassLoader classLoader, FMLTweaker tweaker)
      {
          CoreModManager.mcDir = mcDir;
-@@ -212,6 +215,19 @@
+@@ -212,6 +225,19 @@
              loadCoreMod(classLoader, coreModClassName, null);
          }
          discoverCoreMods(mcDir, classLoader);
@@ -30,7 +65,7 @@
  
      }
  
-@@ -424,8 +440,11 @@
+@@ -424,8 +450,11 @@
              MCVersion requiredMCVersion = coreModClazz.getAnnotation(IFMLLoadingPlugin.MCVersion.class);
              if (!Arrays.asList(rootPlugins).contains(coreModClass) && (requiredMCVersion == null || Strings.isNullOrEmpty(requiredMCVersion.value())))
              {

patches/net/minecraft/world/gen/ChunkProviderServer.java.patch

@@ -38,7 +38,7 @@
 +    public List loadedChunks = new ArrayList(); // Cauldron - vanilla compatibility
      public WorldServer worldObj;
      private Set<Long> loadingChunks = com.google.common.collect.Sets.newHashSet();
-+    public LongHashMap field_73244_f = new LongHashMap(); // Cauldron - vanilla/mystcraft compatibility
++    public LongHashMap loadedChunkHashMap_vanilla = new LongHashMap(); // Cauldron - vanilla/mystcraft compatibility
      private static final String __OBFID = "CL_00001436";
  
      public ChunkProviderServer(WorldServer p_i1520_1_, IChunkLoader p_i1520_2_, IChunkProvider p_i1520_3_)
@@ -170,7 +170,7 @@
 -            chunk.onChunkLoad();
 +            this.loadedChunkHashMap.put(LongHash.toLong(p_73158_1_, p_73158_2_), chunk); // CraftBukkit
 +            this.loadedChunks.add(chunk); // Cauldron - vanilla compatibility
-+            this.field_73244_f.add(ChunkCoordIntPair.chunkXZ2Int(p_73158_1_, p_73158_2_), chunk); // Cauldron - vanilla/mystcraft compatibility
++            this.loadedChunkHashMap_vanilla.add(ChunkCoordIntPair.chunkXZ2Int(p_73158_1_, p_73158_2_), chunk); // Cauldron - vanilla/mystcraft compatibility
 +            loadingChunks.remove(LongHash.toLong(p_73158_1_, p_73158_2_)); // Cauldron - LongHash
 +
 +            if (chunk != null)
@@ -408,7 +408,7 @@
 +                    // this.unloadQueue.remove(olong);
 +                    this.loadedChunkHashMap.remove(chunkcoordinates); // CraftBukkit
 +                    this.loadedChunks.remove(chunk); // Cauldron - vanilla compatibility
-+                    this.field_73244_f.remove(ChunkCoordIntPair.chunkXZ2Int(LongHash.msw(chunkcoordinates), LongHash.lsw(chunkcoordinates))); // Cauldron - vanilla/mystcraft compatibility
++                    this.loadedChunkHashMap_vanilla.remove(ChunkCoordIntPair.chunkXZ2Int(LongHash.msw(chunkcoordinates), LongHash.lsw(chunkcoordinates))); // Cauldron - vanilla/mystcraft compatibility
 +                    ForgeChunkManager.putDormantChunk(chunkcoordinates, chunk);
 +                    if(this.loadedChunkHashMap.size() == 0 && ForgeChunkManager.getPersistentChunksFor(this.worldObj).size() == 0 && !DimensionManager.shouldLoadSpawn(this.worldObj.provider.dimensionId)){
 +                        DimensionManager.unloadWorld(this.worldObj.provider.dimensionId);

patches/net/minecraftforge/common/chunkio/ChunkIOProvider.java.patch

@@ -17,7 +17,7 @@
 -        queuedChunk.provider.loadedChunkHashMap.add(ChunkCoordIntPair.chunkXZ2Int(queuedChunk.x, queuedChunk.z), chunk);
 +        queuedChunk.provider.loadedChunkHashMap.put(LongHash.toLong(queuedChunk.x, queuedChunk.z), chunk);
          queuedChunk.provider.loadedChunks.add(chunk);
-+        queuedChunk.provider.field_73244_f.add(ChunkCoordIntPair.chunkXZ2Int(queuedChunk.x, queuedChunk.z), chunk); // Cauldron - vanilla/mystcraft compatibility
++        queuedChunk.provider.loadedChunkHashMap_vanilla.add(ChunkCoordIntPair.chunkXZ2Int(queuedChunk.x, queuedChunk.z), chunk); // Cauldron - vanilla/mystcraft compatibility
          chunk.onChunkLoad();
  
          if (queuedChunk.provider.currentChunkProvider != null) {

src/main/java/kcauldron/KCauldonClassTransformer.java

@@ -0,0 +1,53 @@
+package kcauldron;
+
+import org.objectweb.asm.ClassReader;
+import org.objectweb.asm.ClassVisitor;
+import org.objectweb.asm.ClassWriter;
+import org.objectweb.asm.FieldVisitor;
+import org.objectweb.asm.MethodVisitor;
+
+import net.minecraft.launchwrapper.IClassTransformer;
+import static org.objectweb.asm.Opcodes.*;
+
+public class KCauldonClassTransformer implements IClassTransformer {
+	public static boolean DEV;
+
+	@Override
+	public byte[] transform(String name, String transformedName, byte[] basicClass) {
+		if ("net.minecraft.world.gen.ChunkProviderServer".equals(transformedName) || "net.minecraftforge.common.chunkio.ChunkIOProvider".equals(transformedName)) {
+			return patchChunkCall(basicClass);
+		}
+		return basicClass;
+	}
+	
+	private byte[] patchChunkCall(byte[] bytes) {
+		ClassReader reader = new ClassReader(bytes);
+		ClassWriter writer = new ClassWriter(ClassWriter.COMPUTE_MAXS);
+		reader.accept(new ClassVisitor(ASM5, writer) {
+			@Override
+			public FieldVisitor visitField(int access, String name,
+					String desc, String signature, Object value) {
+				if ("loadedChunkHashMap_vanilla".equals(name)) {
+					name = DEV ? "loadedChunkHashMap" : "field_73244_f";
+				}
+				return super.visitField(access, name, desc, signature, value);
+			}
+			
+			@Override
+			public MethodVisitor visitMethod(int access, String name,
+					String desc, String signature, String[] exceptions) {
+				return new MethodVisitor(api, super.visitMethod(access, name, desc, signature, exceptions)) {
+					@Override
+					public void visitFieldInsn(int opcode, String owner,
+							String name, String desc) {
+						if ("loadedChunkHashMap_vanilla".equals(name)) {
+							name = DEV ? "loadedChunkHashMap" : "field_73244_f";
+						}
+						super.visitFieldInsn(opcode, owner, name, desc);
+					}
+				};
+			}
+		}, 0);
+		return writer.toByteArray();
+	}
+}