WorldClientClassTransformer_segment.java

ClassNode node = createNode(basicClass);
        boolean change = false;
        for (MethodNode method : node.methods) {
            if ("<init>".equals(method.name)) {
                InsnList instructions = method.instructions;
                AbstractInsnNode needle = instructions.getLast();
                do {
                    needle = needle.getPrevious();
                } while (needle.getOpcode() != RETURN);
                MethodNode mn = new MethodNode();
                mn.visitVarInsn(ALOAD, 0);
                mn.visitMethodInsn(INVOKESTATIC, "xyc/unh0lytigg/jsoncrops/hooks/JCHooks", "WorldOnLoad", "(Lnet/minecraft/world/World;)V", false);
                instructions.insertBefore(needle, instructions);
                change = true;
            }
        }
        return change ? writeNode(node) : basicClass;