Examples with ClassNode org.objectweb.asm.tree.ClassNode used on opensource projects

Example 66 with ClassNode

use of org.objectweb.asm.tree.ClassNode in project Random-Things by lumien231.

the class ClassTransformer method patchVillageChurch.

private byte[] patchVillageChurch(byte[] basicClass) {
    ClassNode classNode = new ClassNode();
    ClassReader classReader = new ClassReader(basicClass);
    classReader.accept(classNode, 0);
    logger.log(Level.DEBUG, "Found VillagePiece Church Class: " + classNode.name);
    MethodNode addComponentParts = null;
    for (MethodNode mn : classNode.methods) {
        if (mn.name.equals(MCPNames.method("func_74875_a"))) {
            addComponentParts = mn;
        }
    }
    if (addComponentParts != null) {
        logger.log(Level.DEBUG, " - Found addComponentParts");
        for (int i = 0; i < addComponentParts.instructions.size(); i++) {
            AbstractInsnNode ain = addComponentParts.instructions.get(i);
            if (ain instanceof InsnNode) {
                InsnNode in = (InsnNode) ain;
                if (in.getOpcode() == Opcodes.IRETURN) {
                    logger.log(Level.DEBUG, " - Patched addComponentParts");
                    AbstractInsnNode before = addComponentParts.instructions.get(i - 1);
                    InsnList toInsert = new InsnList();
                    toInsert.add(new VarInsnNode(Opcodes.ALOAD, 1));
                    toInsert.add(new VarInsnNode(Opcodes.ALOAD, 2));
                    toInsert.add(new VarInsnNode(Opcodes.ALOAD, 3));
                    toInsert.add(new VarInsnNode(Opcodes.ALOAD, 0));
                    toInsert.add(new MethodInsnNode(Opcodes.INVOKESTATIC, "lumien/randomthings/worldgen/WorldGenPeaceCandle", "addComponentParts", "(Lnet/minecraft/world/World;Ljava/util/Random;Lnet/minecraft/world/gen/structure/StructureBoundingBox;Lnet/minecraft/world/gen/structure/StructureVillagePieces$Church;)V", false));
                    i += 5;
                    addComponentParts.instructions.insertBefore(before, toInsert);
                }
            }
        }
    }
    CustomClassWriter writer = new CustomClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);
    classNode.accept(writer);
    return writer.toByteArray();
}

Example 67 with ClassNode

use of org.objectweb.asm.tree.ClassNode in project BetterRain by OreCruncher.

the class Transformer method transformSoundManager.

private byte[] transformSoundManager(final byte[] classBytes) {
    final String[] names;
    if (TransformLoader.runtimeDeobEnabled)
        names = new String[] { "func_148594_a" };
    else
        names = new String[] { "getNormalizedVolume" };
    final String[] targetName = new String[] { "getNormalizedVolume" };
    final ClassReader cr = new ClassReader(classBytes);
    final ClassNode cn = new ClassNode(ASM5);
    cr.accept(cn, 0);
    for (final MethodNode m : cn.methods) {
        if (m.name.equals(names[0])) {
            logger.debug("Hooking " + names[0]);
            final InsnList list = new InsnList();
            list.add(new VarInsnNode(ALOAD, 1));
            list.add(new VarInsnNode(ALOAD, 2));
            list.add(new VarInsnNode(ALOAD, 3));
            final String sig = "(Lnet/minecraft/client/audio/ISound;Lnet/minecraft/client/audio/SoundPoolEntry;Lnet/minecraft/client/audio/SoundCategory;)F";
            list.add(new MethodInsnNode(INVOKESTATIC, "org/blockartistry/mod/DynSurround/client/sound/SoundManager", targetName[0], sig, false));
            list.add(new InsnNode(FRETURN));
            m.instructions.insertBefore(m.instructions.getFirst(), list);
            break;
        }
    }
    final ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    cn.accept(cw);
    return cw.toByteArray();
}

Example 68 with ClassNode

use of org.objectweb.asm.tree.ClassNode in project BetterRain by OreCruncher.

the class Transformer method transformEntityRenderer.

private byte[] transformEntityRenderer(final byte[] classBytes) {
    final String[] names;
    if (TransformLoader.runtimeDeobEnabled)
        names = new String[] { "func_78474_d", "func_78484_h" };
    else
        names = new String[] { "renderRainSnow", "addRainParticles" };
    final String[] targetName = new String[] { "renderRainSnow", "addRainParticles" };
    final ClassReader cr = new ClassReader(classBytes);
    final ClassNode cn = new ClassNode(ASM5);
    cr.accept(cn, 0);
    for (final MethodNode m : cn.methods) {
        if (m.name.equals(names[0])) {
            logger.debug("Hooking " + names[0]);
            InsnList list = new InsnList();
            list.add(new VarInsnNode(ALOAD, 0));
            list.add(new VarInsnNode(FLOAD, 1));
            final String sig = "(Lnet/minecraft/client/renderer/EntityRenderer;F)V";
            list.add(new MethodInsnNode(INVOKESTATIC, "org/blockartistry/mod/DynSurround/client/RenderWeather", targetName[0], sig, false));
            list.add(new InsnNode(RETURN));
            m.instructions.insertBefore(m.instructions.getFirst(), list);
        } else if (m.name.equals(names[1])) {
            logger.debug("Hooking " + names[1]);
            InsnList list = new InsnList();
            list.add(new VarInsnNode(ALOAD, 0));
            final String sig = "(Lnet/minecraft/client/renderer/EntityRenderer;)V";
            list.add(new MethodInsnNode(INVOKESTATIC, "org/blockartistry/mod/DynSurround/client/RenderWeather", targetName[1], sig, false));
            list.add(new InsnNode(RETURN));
            m.instructions.insertBefore(m.instructions.getFirst(), list);
        }
    }
    final ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    cn.accept(cw);
    return cw.toByteArray();
}

Example 69 with ClassNode

use of org.objectweb.asm.tree.ClassNode in project BetterRain by OreCruncher.

the class Transformer method transformWorld.

private byte[] transformWorld(final byte[] classBytes) {
    final String[] names;
    if (TransformLoader.runtimeDeobEnabled)
        names = new String[] { "updateWeatherBody" };
    else
        names = new String[] { "updateWeatherBody" };
    final String[] targetName = new String[] { "updateWeatherBody" };
    final ClassReader cr = new ClassReader(classBytes);
    final ClassNode cn = new ClassNode(ASM5);
    cr.accept(cn, 0);
    for (final MethodNode m : cn.methods) {
        if (m.name.equals(names[0])) {
            logger.debug("Hooking " + names[0]);
            InsnList list = new InsnList();
            list.add(new VarInsnNode(ALOAD, 0));
            final String sig = "(Lnet/minecraft/world/World;)V";
            list.add(new MethodInsnNode(INVOKESTATIC, "org/blockartistry/mod/DynSurround/server/WorldHandler", targetName[0], sig, false));
            list.add(new InsnNode(RETURN));
            m.instructions.insertBefore(m.instructions.getFirst(), list);
            break;
        }
    }
    final ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    cn.accept(cw);
    return cw.toByteArray();
}

Example 70 with ClassNode

use of org.objectweb.asm.tree.ClassNode in project BetterRain by OreCruncher.

the class Transformer method transformWorldServer.

private byte[] transformWorldServer(final byte[] classBytes) {
    final String[] names;
    if (TransformLoader.runtimeDeobEnabled)
        names = new String[] { "func_73051_P" };
    else
        names = new String[] { "resetRainAndThunder" };
    final String[] targetName = new String[] { "resetRainAndThunder" };
    final ClassReader cr = new ClassReader(classBytes);
    final ClassNode cn = new ClassNode(ASM5);
    cr.accept(cn, 0);
    for (final MethodNode m : cn.methods) {
        if (m.name.equals(names[0])) {
            logger.debug("Hooking " + names[0]);
            InsnList list = new InsnList();
            list.add(new VarInsnNode(ALOAD, 0));
            final String sig = "(Lnet/minecraft/world/WorldServer;)V";
            list.add(new MethodInsnNode(INVOKESTATIC, "org/blockartistry/mod/DynSurround/server/PlayerSleepHandler", targetName[0], sig, false));
            list.add(new InsnNode(RETURN));
            m.instructions.insertBefore(m.instructions.getFirst(), list);
            break;
        }
    }
    final ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    cn.accept(cw);
    return cw.toByteArray();
}