Class Transformer

package fr.mcnanotech.nhg.asm;
import java.io.InputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
public class NHGClassTransformer implements net.minecraft.launchwrapper.IClassTransformer
{
@Override
public byte[] transform(String name, String transformedName, byte[] byteCode)
{
if(name.equals("vo") || name.equals("net.minecraft.entity.ai.EntityAINearestAttackableTarget"))
{
System.out.println("********* INSIDE AI ABOUT TO PATCH: " + name);
byteCode = patchClassInJar("net.minecraft.entity.ai.EntityAINearestAttackableTarget", byteCode);
}
else if(name.equals("un") || name.equals("net.minecraft.entity.ai.EntityAIWatchClosest"))
{
System.out.println("********* INSIDE AI ABOUT TO PATCH: " + name);
byteCode = patchClassInJar("net.minecraft.entity.ai.EntityAIWatchClosest", byteCode);
}
else if(name.equals("yn") || name.equals("net.minecraft.entity.monster.EntitySpider"))
{
System.out.println("********* INSIDE MOB ABOUT TO PATCH: " + name);
byteCode = patchClassInJar("net.minecraft.entity.monster.EntitySpider", byteCode);
}
else if(name.equals("yk") || name.equals("net.minecraft.entity.monster.EntitySilverfish"))
{
System.out.println("********* INSIDE MOB ABOUT TO PATCH: " + name);
byteCode = patchClassInJar("net.minecraft.entity.monster.EntitySilverfish", byteCode);
}
else if(name.equals("ym") || name.equals("net.minecraft.entity.monster.EntitySlime"))
{
System.out.println("********* INSIDE MOB ABOUT TO PATCH: " + name);
byteCode = patchClassInJar("net.minecraft.entity.monster.EntitySlime", byteCode);
}
else if(name.equals("wv") || name.equals("net.minecraft.entity.passive.EntityWolf"))
{
System.out.println("********* INSIDE MOB ABOUT TO PATCH: " + name);
byteCode = patchClassInJar("net.minecraft.entity.passive.EntityWolf", byteCode);
}
else if(name.equals("bjk") || name.equals("net.minecraft.client.entity.EntityClientPlayerMP"))
{
System.out.println("********* INSIDE Player ABOUT TO PATCH: " + name);
byteCode = patchClassInJar("net.minecraft.client.entity.EntityClientPlayerMP", byteCode);
}
else if(name.equals("blo") || name.equals("net.minecraft.client.renderer.WorldRenderer"))
{
System.out.println("********* INSIDE WORLDRENDERER ABOUT TO PATCH: " + name);
byteCode = patchClassInJar("net.minecraft.client.renderer.WorldRenderer", byteCode);
}
else if(name.equals("bhm") || name.equals("net.minecraft.client.model.ModelBiped"))
{
System.out.println("********* INSIDE MODEL ABOUT TO PATCH: " + name);
byteCode = patchClassInJar("net.minecraft.client.model.ModelBiped", byteCode);
}
return byteCode;
}
private byte[] patchClassInJar(String name, byte[] byteCode)
{
try
{
ZipFile zip = new ZipFile(NHGLoadingPlugin.location);
ZipEntry entry = zip.getEntry(name.replace('.', '/') + ".class");
if(entry == null)
{
System.err.println(name + " not found in " + NHGLoadingPlugin.location.getName());
}
else
{
InputStream zin = zip.getInputStream(entry);
byteCode = new byte[(int)entry.getSize()];
zin.read(byteCode);
zin.close();
System.out.println("[" + "NanotechHungerGames" + "]: " + "Class " + name + " patched!");
}
zip.close();
}
catch(Exception e)
{
throw new RuntimeException("Error overriding " + name + " from " + NHGLoadingPlugin.location.getName(), e);
}
return byteCode;
}
}