public abstract class AntiCactiClassTransformer implements IClassTransformer
{
    private static final String[] classesBeingTransformed =
            {
                    "net.minecraft.block.BlockCactus"
            };



    private byte[] transformGuiOptions(byte[] bytecode, boolean obf) throws IOException {

        String className = obf ? "ajt;" : "Lnet.minecraft.block.BlockCactus;";

        String methodName = obf ? "a" : "onBlockPlacedBy";

        ClassNode classNode = new ClassNode();
        ClassReader classReader = new ClassReader(bytecode);
        classReader.accept(classNode, 0);

        insertHook(classNode, methodName, "()V", HOOKS_CLASS, "onBlockPlacedBy", "(Lnet/minecraft/world/World;IIILnet/minecraft/entity/EntityLivingBase;Lnet/minecraft/item/ItemStack;)V",
        true, false, null, new int[]{0}, new int[]{Opcodes.ALOAD});


        ClassWriter writer = new ClassWriter(0);
        classNode.accept(writer);
        return writer.toByteArray();
}



}