Example usage for org.objectweb.asm.tree ClassNode ClassNode

Introduction

In this page you can find the example usage for org.objectweb.asm.tree ClassNode ClassNode.

Prototype

public ClassNode(final int api) 

Source Link

Document

Constructs a new ClassNode .

Usage

From source file:org.blockartistry.DynSurround.asm.Transformer.java

License:MIT License

private byte[] transformEntityRenderer(final byte[] classBytes) {
    final String names[] = { "func_78484_h", "addRainParticles" };
    final String targetName = "addRainParticles";

    final ClassReader cr = new ClassReader(classBytes);
    final ClassNode cn = new ClassNode(ASM5);
    cr.accept(cn, 0);// w  ww.j  av  a2s.co m

    for (final MethodNode m : cn.methods) {
        if (isOneOf(m.name, names)) {
            logger.debug("Hooking " + m.name);
            final 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/DynSurround/client/weather/RenderWeather", targetName, 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();
}

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From source file:org.blockartistry.DynSurround.asm.Transformer.java

License:MIT License

private byte[] transformWorldServer(final byte[] classBytes) {
    final String names[] = { "func_73051_P", "resetRainAndThunder" };
    final String targetName = "resetRainAndThunder";

    final ClassReader cr = new ClassReader(classBytes);
    final ClassNode cn = new ClassNode(ASM5);
    cr.accept(cn, 0);//from ww w.j ava2 s.c o  m

    for (final MethodNode m : cn.methods) {
        if (isOneOf(m.name, names)) {
            logger.debug("Hooking " + m.name);
            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/DynSurround/server/PlayerSleepHandler",
                    targetName, 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();
}

---

From source file:org.blockartistry.DynSurround.asm.Transformer.java

License:MIT License

private byte[] transformSoundManager(final byte[] classBytes) {
    final String managerToReplace = "net/minecraft/client/audio/SoundManager";
    final String newManager = "org/blockartistry/DynSurround/client/sound/SoundManagerReplacement";

    final ClassReader cr = new ClassReader(classBytes);
    final ClassNode cn = new ClassNode(ASM5);
    cr.accept(cn, 0);/*from www.j  a  va 2  s.com*/

    for (final MethodNode m : cn.methods) {
        final ListIterator<AbstractInsnNode> itr = m.instructions.iterator();
        boolean foundNew = false;
        while (itr.hasNext()) {
            final AbstractInsnNode node = itr.next();
            if (node.getOpcode() == NEW) {
                final TypeInsnNode theNew = (TypeInsnNode) node;
                if (managerToReplace.equals(theNew.desc)) {
                    m.instructions.set(node, new TypeInsnNode(NEW, newManager));
                    foundNew = true;
                }
            } else if (node.getOpcode() == INVOKESPECIAL) {
                final MethodInsnNode theInvoke = (MethodInsnNode) node;
                if (managerToReplace.equals(theInvoke.owner)) {
                    if (foundNew) {
                        m.instructions.set(node, new MethodInsnNode(INVOKESPECIAL, newManager, theInvoke.name,
                                theInvoke.desc, false));
                        foundNew = false;
                    }
                }
            }
        }
    }

    final ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    cn.accept(cw);
    return cw.toByteArray();
}

---

From source file:org.blockartistry.DynSurround.asm.Transformer.java

License:MIT License

private byte[] replaceRandom(final String name, final byte[] classBytes) {

    final String randomToReplace = "java/util/Random";
    final String newRandom = "org/blockartistry/lib/random/XorShiftRandom";

    boolean madeUpdate = false;

    final ClassReader cr = new ClassReader(classBytes);
    final ClassNode cn = new ClassNode(ASM5);
    cr.accept(cn, 0);/*  ww w. ja va2s  . c om*/

    for (final MethodNode m : cn.methods) {
        final ListIterator<AbstractInsnNode> itr = m.instructions.iterator();
        boolean foundNew = false;
        while (itr.hasNext()) {
            final AbstractInsnNode node = itr.next();
            if (node.getOpcode() == NEW) {
                final TypeInsnNode theNew = (TypeInsnNode) node;
                if (randomToReplace.equals(theNew.desc)) {
                    m.instructions.set(node, new TypeInsnNode(NEW, newRandom));
                    madeUpdate = true;
                    foundNew = true;
                }
            } else if (node.getOpcode() == INVOKESPECIAL) {
                final MethodInsnNode theInvoke = (MethodInsnNode) node;
                if (randomToReplace.equals(theInvoke.owner)) {
                    if (foundNew) {
                        m.instructions.set(node, new MethodInsnNode(INVOKESPECIAL, newRandom, theInvoke.name,
                                theInvoke.desc, false));
                        foundNew = false;
                    }
                }
            }
        }
    }

    if (madeUpdate) {
        logger.debug("Replaced Random in " + name);
        ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
        cn.accept(cw);
        return cw.toByteArray();
    }
    return classBytes;
}

---

From source file:org.blockartistry.mod.DynSurround.asm.Transformer.java

License:MIT License

private byte[] transformEntityRenderer(final byte[] classBytes) {
    final String names[];

    if (TransformLoader.runtimeDeobEnabled)
        names = new String[] { "func_78474_d", "func_78484_h" };
    else//from   w ww.  j  a  v a  2s  . c om
        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]);
            final 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]);
            final 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();
}

---

From source file:org.blockartistry.mod.DynSurround.asm.Transformer.java

License:MIT License

private byte[] transformWorldServer(final byte[] classBytes) {
    final String names[];

    if (TransformLoader.runtimeDeobEnabled)
        names = new String[] { "func_73051_P" };
    else//from  w ww.  ja v  a  2s.com
        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();
}

---

From source file:org.blockartistry.mod.DynSurround.asm.Transformer.java

License:MIT License

private byte[] transformWorld(final byte[] classBytes) {
    final String names[];

    if (TransformLoader.runtimeDeobEnabled)
        names = new String[] { "updateWeatherBody", "func_72896_J", "func_72911_I" };
    else/*www. j ava 2 s. c  o  m*/
        names = new String[] { "updateWeatherBody", "isRaining", "isThundering" };

    final String targetName[] = new String[] { "updateWeatherBody", "isRaining", "isThundering" };

    final ClassReader cr = new ClassReader(classBytes);
    final ClassNode cn = new ClassNode(ASM5);
    cr.accept(cn, 0);

    for (final MethodNode m : cn.methods) {
        int idx = -1;
        if (m.name.equals(names[0]))
            idx = 0;
        else if (m.name.equals(names[1]))
            idx = 1;
        else if (m.name.equals(names[2]))
            idx = 2;
        else
            continue;

        logger.debug("Hooking " + names[idx]);
        InsnList list = new InsnList();
        list.add(new VarInsnNode(ALOAD, 0));
        final String sig;
        if (idx == 0)
            sig = "(Lnet/minecraft/world/World;)V";
        else
            sig = "(Lnet/minecraft/world/World;)Z";

        list.add(new MethodInsnNode(INVOKESTATIC, "org/blockartistry/mod/DynSurround/server/WorldHandler",
                targetName[idx], sig, false));

        if (idx == 0)
            list.add(new InsnNode(RETURN));
        else
            list.add(new InsnNode(IRETURN));
        m.instructions.insertBefore(m.instructions.getFirst(), list);
    }

    final ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    cn.accept(cw);
    return cw.toByteArray();
}

---

From source file:org.blockartistry.mod.DynSurround.asm.Transformer.java

License:MIT License

private byte[] transformSoundManager(final byte[] classBytes) {
    final String names[];

    if (TransformLoader.runtimeDeobEnabled)
        names = new String[] { "func_188770_e" };
    else/*from   www  . j a v a  2 s. co m*/
        names = new String[] { "getClampedVolume" };

    final String targetName[] = new String[] { "getClampedVolume" };

    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));
            final String sig = "(Lnet/minecraft/client/audio/ISound;)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();
}

---

From source file:org.blockartistry.mod.Jiffy.asm.Transformer.java

License:MIT License

private byte[] transformMathUtils(final byte[] classBytes) {

    String names[] = null;//ww  w  .j a v a 2 s.  com

    if (TransformLoader.runtimeDeobEnabled)
        names = new String[] { "func_76126_a", "func_76134_b" };
    else
        names = new String[] { "sin", "cos" };

    final String targetName[] = new String[] { "sin", "cos" };

    final ClassReader cr = new ClassReader(classBytes);
    final ClassNode cn = new ClassNode(ASM5);
    cr.accept(cn, 0);

    for (final MethodNode m : cn.methods) {
        int targetId = -1;
        if (m.name.equals(names[0]))
            targetId = 0;
        else if (m.name.equals(names[1]))
            targetId = 1;

        if (targetId != -1) {
            m.localVariables = null;
            m.instructions.clear();
            m.instructions.add(new VarInsnNode(FLOAD, 0));
            final String sig = "(F)F";
            m.instructions.add(new MethodInsnNode(INVOKESTATIC, "org/blockartistry/util/MathHelper",
                    targetName[targetId], sig, false));
            m.instructions.add(new InsnNode(FRETURN));
        }
    }

    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    cn.accept(cw);
    return cw.toByteArray();
}

---

From source file:org.blockartistry.mod.Jiffy.asm.Transformer.java

License:MIT License

private byte[] transformBlockLeaves(final byte[] classBytes) {
    String names[] = null;//from  w  w  w . java2s .  co  m

    if (TransformLoader.runtimeDeobEnabled)
        names = new String[] { "beginLeavesDecay" };
    else
        names = new String[] { "beginLeavesDecay" };

    final String targetName[] = new String[] { "beginLeavesDecay" };

    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])) {
            m.localVariables = null;
            m.instructions.clear();
            m.instructions.add(new VarInsnNode(ALOAD, 1));
            m.instructions.add(new VarInsnNode(ILOAD, 2));
            m.instructions.add(new VarInsnNode(ILOAD, 3));
            m.instructions.add(new VarInsnNode(ILOAD, 4));
            final String sig = "(Lnet/minecraft/world/World;III)V";
            m.instructions.add(new MethodInsnNode(INVOKESTATIC, "org/blockartistry/block/BlockLeaves",
                    targetName[0], sig, false));
            m.instructions.add(new InsnNode(RETURN));
            break;
        }
    }

    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    cn.accept(cw);
    return cw.toByteArray();
}

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