5 files changed, 158 insertions, 0 deletions
diff --git a/ihl_coremod/IHLCoremod.java b/ihl_coremod/IHLCoremod.java
new file mode 100644
index 0000000..300e27d
--- /dev/null
+++ b/ihl_coremod/IHLCoremod.java
@@ -0,0 +1,48 @@
+package ihl_coremod;
+
+import java.util.Map;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+import cpw.mods.fml.relauncher.IFMLLoadingPlugin;
+
+@IFMLLoadingPlugin.Name(value = "IHL CoreMod")
+@IFMLLoadingPlugin.MCVersion(value = "1.7.10")
+@IFMLLoadingPlugin.TransformerExclusions(value = "ihl_coremod.")
+@IFMLLoadingPlugin.SortingIndex(value = 0)
+public class IHLCoremod implements IFMLLoadingPlugin{
+    public static Logger log;
+
+    public IHLCoremod()
+    {
+        log = LogManager.getLogger("IHLCoremod");
+        log.info("IHL coremod logger created.");
+    }
+    
+	@Override
+	public String[] getASMTransformerClass() {
+		return new String[] {WorldRendererClassTransformer.class.getName()};
+	}
+
+	@Override
+	public String getModContainerClass() {
+		return IHLCoremodContainer.class.getName();
+	}
+
+	@Override
+	public String getSetupClass() {
+		return null;
+	}
+
+	@Override
+	public void injectData(Map<String, Object> data) {
+		
+	}
+
+	@Override
+	public String getAccessTransformerClass() {
+		return null;
+	}
+
+}
diff --git a/ihl_coremod/IHLCoremodContainer.java b/ihl_coremod/IHLCoremodContainer.java
new file mode 100644
index 0000000..c33a58e
--- /dev/null
+++ b/ihl_coremod/IHLCoremodContainer.java
@@ -0,0 +1,29 @@
+package ihl_coremod;
+
+import java.util.Arrays;
+
+import com.google.common.eventbus.EventBus;
+
+import cpw.mods.fml.common.DummyModContainer;
+import cpw.mods.fml.common.LoadController;
+import cpw.mods.fml.common.ModMetadata;
+
+public class IHLCoremodContainer extends DummyModContainer {
+
+	public IHLCoremodContainer() {
+		super(new ModMetadata());
+		ModMetadata myMeta = super.getMetadata();
+		myMeta.authorList = Arrays.asList(new String[] { "Foghrye4" });
+		myMeta.description = "Core mod for ASM tweaks";
+		myMeta.modId = "ihl_coremod";
+		myMeta.version = "1.0";
+		myMeta.name = "IHL core mod";
+	}
+	
+    @Override
+    public boolean registerBus(EventBus bus, LoadController controller)
+    {
+    	bus.register(this);
+        return true;
+    }
+}
diff --git a/ihl_coremod/WorldRendererClassTransformer.java b/ihl_coremod/WorldRendererClassTransformer.java
new file mode 100644
index 0000000..14d0ce0
--- /dev/null
+++ b/ihl_coremod/WorldRendererClassTransformer.java
@@ -0,0 +1,22 @@
+package ihl_coremod;
+
+import net.minecraft.launchwrapper.IClassTransformer;
+import org.objectweb.asm.ClassReader;
+import org.objectweb.asm.ClassWriter;
+import org.objectweb.asm.Opcodes;
+
+public class WorldRendererClassTransformer implements IClassTransformer {
+
+	@Override
+	public byte[] transform(String name, String transformedName, byte[] basicClass) {
+		if (name.equals("blo")) {
+			IHLCoremod.log.info("net.minecraft.client.renderer.WorldRenderer founded.");
+			ClassReader cr = new ClassReader(basicClass);
+			ClassWriter cw = new ClassWriter(cr, 0);
+			WorldRendererClassVisitor cv = new WorldRendererClassVisitor(Opcodes.ASM4, cw);
+			cr.accept(cv, 0);
+			return cw.toByteArray();
+		}
+		return basicClass;
+	}
+}
diff --git a/ihl_coremod/WorldRendererClassVisitor.java b/ihl_coremod/WorldRendererClassVisitor.java
new file mode 100644
index 0000000..89ab49b
--- /dev/null
+++ b/ihl_coremod/WorldRendererClassVisitor.java
@@ -0,0 +1,25 @@
+package ihl_coremod;
+
+import org.objectweb.asm.ClassVisitor;
+import org.objectweb.asm.MethodVisitor;
+import org.objectweb.asm.Type;
+
+import net.minecraft.client.renderer.RenderBlocks;
+
+public class WorldRendererClassVisitor extends ClassVisitor {
+
+	public WorldRendererClassVisitor(int api, ClassVisitor cv) {
+		super(api, cv);
+	}
+	
+	@Override
+	public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
+		MethodVisitor mv = super.visitMethod(access, name, desc, signature, exceptions);
+		if (name.equals("a") && desc.equals("(Lsv;)V")) {
+			IHLCoremod.log.info("Sucessfully founded updateRenderer(Lnet/minecraft/entity/EntityLivingBase;)V");
+			IHLCoremod.log.info("Trying intercept: "+Type.getInternalName(RenderBlocks.class)+".<init>");
+			return new WorldRendererRenderBlocksInitMethodVisitor(this.api, mv);
+		}
+		return mv;
+	}
+}
diff --git a/ihl_coremod/WorldRendererRenderBlocksInitMethodVisitor.java b/ihl_coremod/WorldRendererRenderBlocksInitMethodVisitor.java
new file mode 100644
index 0000000..18c655a
--- /dev/null
+++ b/ihl_coremod/WorldRendererRenderBlocksInitMethodVisitor.java
@@ -0,0 +1,34 @@
+package ihl_coremod;
+
+import org.objectweb.asm.MethodVisitor;
+import org.objectweb.asm.Opcodes;
+
+public class WorldRendererRenderBlocksInitMethodVisitor extends MethodVisitor {
+
+	private static final String RENDER_BLOCK_EXT_TYPE = "ihl/model/RenderBlocksExt";
+	private static final String RENDER_BLOCK_TYPE = "blm";
+
+	public WorldRendererRenderBlocksInitMethodVisitor(int api, MethodVisitor mv) {
+		super(api, mv);
+	}
+
+	@Override
+	public void visitTypeInsn(int opcode, String type) {
+		if (opcode == Opcodes.NEW && type.equals(RENDER_BLOCK_TYPE)) {
+			IHLCoremod.log.info("Sucessfully intercept new RenderBlocks instruction.");
+			super.visitTypeInsn(opcode, RENDER_BLOCK_EXT_TYPE);
+		} else {
+			super.visitTypeInsn(opcode, type);
+		}
+	}
+
+	@Override
+	public void visitMethodInsn(int opcode, String owner, String name, String desc, boolean itf) {
+		if (owner.equals(RENDER_BLOCK_TYPE) && name.equals("<init>")) {
+			IHLCoremod.log.info("Sucessfully intercept RenderBlocks.<init> method.");
+			super.visitMethodInsn(opcode, RENDER_BLOCK_EXT_TYPE, name, desc, itf);
+		} else {
+			super.visitMethodInsn(opcode, owner, name, desc, itf);
+		}
+	}
+}