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

Example 51 with MethodNode

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

the class ClassTransformer method patchVertexLighterFlat.

private byte[] patchVertexLighterFlat(byte[] basicClass) {
    ClassNode classNode = new ClassNode();
    ClassReader classReader = new ClassReader(basicClass);
    classReader.accept(classNode, 0);
    logger.log(Level.DEBUG, "Found VertexLighterFlat Class: " + classNode.name);
    MethodNode processQuad = null;
    for (MethodNode mn : classNode.methods) {
        if (mn.name.equals("processQuad")) {
            processQuad = mn;
            break;
        }
    }
    if (processQuad != null) {
        logger.log(Level.DEBUG, " - Found processQuad");
        InsnList resetList = new InsnList();
        resetList.add(new VarInsnNode(ALOAD, 0));
        resetList.add(new InsnNode(ICONST_0));
        resetList.add(new FieldInsnNode(PUTFIELD, "net/minecraftforge/client/model/pipeline/VertexLighterFlat", "rtFullBright", "Z"));
        processQuad.instructions.insert(resetList);
        AbstractInsnNode tintTarget = null;
        int lightMapTarget = 0;
        AbstractInsnNode updateColorTarget = null;
        LabelNode firstLabel = null;
        LabelNode lastLabel = null;
        for (int i = 0; i < processQuad.instructions.size(); i++) {
            AbstractInsnNode ain = processQuad.instructions.get(i);
            if (ain instanceof VarInsnNode) {
                VarInsnNode vin = (VarInsnNode) ain;
                if (vin.var == 5 && (processQuad.instructions.get(i - 1) instanceof MethodInsnNode)) {
                    tintTarget = vin;
                }
            } else if (ain instanceof LabelNode) {
                LabelNode ln = (LabelNode) ain;
                if (firstLabel == null) {
                    firstLabel = ln;
                }
                lastLabel = ln;
            } else if (ain instanceof MethodInsnNode) {
                MethodInsnNode min = (MethodInsnNode) ain;
                if (min.name.equals(MCPNames.method("func_177369_e"))) {
                    lightMapTarget = i;
                } else if (min.name.equals("updateColor")) {
                    updateColorTarget = min;
                }
            }
        }
        FieldNode fullBrightField = new FieldNode(ACC_PRIVATE, "rtFullBright", "Z", null, false);
        classNode.fields.add(fullBrightField);
        if (lightMapTarget != 0) {
            logger.log(Level.DEBUG, " - Found patch target (lightmap) (1/4)");
            for (int i = lightMapTarget; i < processQuad.instructions.size(); i++) {
                AbstractInsnNode ain = processQuad.instructions.get(i);
                if (ain instanceof InsnNode) {
                    InsnNode in = (InsnNode) ain;
                    if (in.getOpcode() == AALOAD) {
                        logger.log(Level.DEBUG, " - Found lightmap array (2/4)");
                        LabelNode l0 = new LabelNode(new Label());
                        InsnList toInsert = new InsnList();
                        toInsert.add(new VarInsnNode(ALOAD, 0));
                        toInsert.add(new FieldInsnNode(GETFIELD, "net/minecraftforge/client/model/pipeline/VertexLighterFlat", "rtFullBright", "Z"));
                        toInsert.add(new JumpInsnNode(IFEQ, l0));
                        toInsert.add(new InsnNode(POP));
                        toInsert.add(new FieldInsnNode(GETSTATIC, "lumien/randomthings/lib/Constants", "FULLBRIGHT_OVERRIDE", "[F"));
                        toInsert.add(l0);
                        processQuad.instructions.insert(in, toInsert);
                        break;
                    }
                }
            }
        }
        if (tintTarget != null) {
            logger.log(Level.DEBUG, " - Found tintTarget (3/4");
            LabelNode l0 = new LabelNode(new Label());
            LabelNode l1 = new LabelNode(new Label());
            InsnList toInsert = new InsnList();
            toInsert.add(new VarInsnNode(ALOAD, 0));
            toInsert.add(new FieldInsnNode(GETFIELD, "net/minecraftforge/client/model/pipeline/VertexLighterFlat", "blockInfo", "Lnet/minecraftforge/client/model/pipeline/BlockInfo;"));
            toInsert.add(new MethodInsnNode(INVOKEVIRTUAL, "net/minecraftforge/client/model/pipeline/BlockInfo", "getState", "()Lnet/minecraft/block/state/IBlockState;", false));
            toInsert.add(new MethodInsnNode(INVOKEINTERFACE, "net/minecraft/block/state/IBlockState", MCPNames.method("func_177230_c"), "()Lnet/minecraft/block/Block;", true));
            toInsert.add(new TypeInsnNode(INSTANCEOF, "lumien/randomthings/lib/ILuminousBlock"));
            toInsert.add(new JumpInsnNode(IFEQ, l0));
            toInsert.add(new VarInsnNode(ALOAD, 0));
            toInsert.add(new FieldInsnNode(GETFIELD, "net/minecraftforge/client/model/pipeline/VertexLighterFlat", "blockInfo", "Lnet/minecraftforge/client/model/pipeline/BlockInfo;"));
            toInsert.add(new MethodInsnNode(INVOKEVIRTUAL, "net/minecraftforge/client/model/pipeline/BlockInfo", "getState", "()Lnet/minecraft/block/state/IBlockState;", false));
            toInsert.add(new InsnNode(DUP));
            toInsert.add(new MethodInsnNode(INVOKEINTERFACE, "net/minecraft/block/state/IBlockState", MCPNames.method("func_177230_c"), "()Lnet/minecraft/block/Block;", true));
            toInsert.add(new InsnNode(SWAP));
            toInsert.add(new VarInsnNode(ALOAD, 0));
            toInsert.add(new FieldInsnNode(GETFIELD, "net/minecraftforge/client/model/pipeline/VertexLighterFlat", "tint", "I"));
            toInsert.add(new MethodInsnNode(INVOKEINTERFACE, "lumien/randomthings/lib/ILuminousBlock", "shouldGlow", "(Lnet/minecraft/block/state/IBlockState;I)Z", true));
            toInsert.add(new JumpInsnNode(IFEQ, l0));
            toInsert.add(new VarInsnNode(ALOAD, 0));
            toInsert.add(new InsnNode(ICONST_0));
            toInsert.add(new FieldInsnNode(PUTFIELD, "net/minecraftforge/client/model/pipeline/VertexLighterFlat", "diffuse", "Z"));
            toInsert.add(new VarInsnNode(ALOAD, 0));
            toInsert.add(new InsnNode(ICONST_1));
            toInsert.add(new FieldInsnNode(PUTFIELD, "net/minecraftforge/client/model/pipeline/VertexLighterFlat", "rtFullBright", "Z"));
            toInsert.add(l0);
            processQuad.instructions.insertBefore(tintTarget, toInsert);
        }
        if (updateColorTarget != null) {
            logger.log(Level.DEBUG, " - Found updateColor target (tint) (4/4)");
            LabelNode l0 = new LabelNode(new Label());
            LabelNode l1 = new LabelNode(new Label());
            InsnList toInsert = new InsnList();
            toInsert.add(new VarInsnNode(ALOAD, 0));
            toInsert.add(new FieldInsnNode(GETFIELD, "net/minecraftforge/client/model/pipeline/VertexLighterFlat", "rtFullBright", "Z"));
            toInsert.add(new JumpInsnNode(IFEQ, l1));
            toInsert.add(new MethodInsnNode(INVOKESTATIC, asmHandler, "updateColor", "([F[FFFFFI)V", false));
            toInsert.add(new InsnNode(POP));
            toInsert.add(new JumpInsnNode(GOTO, l0));
            toInsert.add(l1);
            processQuad.instructions.insertBefore(updateColorTarget, toInsert);
            processQuad.instructions.insert(updateColorTarget, l0);
        }
    }
    CustomClassWriter writer = new CustomClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);
    classNode.accept(writer);
    try {
        byte[] result = writer.toByteArray();
        return result;
    } catch (Exception e) {
        e.printStackTrace();
        return basicClass;
    }
}

Example 52 with MethodNode

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

the class ClassTransformer method patchOceanMonument.

private byte[] patchOceanMonument(byte[] basicClass) {
    ClassNode classNode = new ClassNode();
    ClassReader classReader = new ClassReader(basicClass);
    classReader.accept(classNode, 0);
    logger.log(Level.DEBUG, "Found MonumentCoreRoom 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/WorldGenOceanChest", "addComponentParts", "(Lnet/minecraft/world/World;Ljava/util/Random;Lnet/minecraft/world/gen/structure/StructureBoundingBox;Lnet/minecraft/world/gen/structure/StructureOceanMonumentPieces$MonumentCoreRoom;)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 53 with MethodNode

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

the class ClassTransformer method patchRenderLivingBase.

private byte[] patchRenderLivingBase(byte[] basicClass) {
    ClassNode classNode = new ClassNode();
    ClassReader classReader = new ClassReader(basicClass);
    classReader.accept(classNode, 0);
    logger.log(Level.DEBUG, "Found RenderLivingBase Class: " + classNode.name);
    MethodNode canRenderName = null;
    for (MethodNode mn : classNode.methods) {
        if (mn.name.equals(MCPNames.method("func_177070_b"))) {
            canRenderName = mn;
            break;
        }
    }
    if (canRenderName != null) {
        logger.log(Level.DEBUG, "- Found canRenderName (1/1)");
        LabelNode l1 = new LabelNode(new Label());
        InsnList toInsert = new InsnList();
        toInsert.add(new VarInsnNode(ALOAD, 1));
        toInsert.add(new MethodInsnNode(INVOKESTATIC, asmHandler, "canRenderName", "(Lnet/minecraft/entity/EntityLivingBase;)Z", false));
        toInsert.add(new JumpInsnNode(IFGT, l1));
        toInsert.add(new InsnNode(ICONST_0));
        toInsert.add(new InsnNode(IRETURN));
        toInsert.add(l1);
        canRenderName.instructions.insert(toInsert);
    }
    CustomClassWriter writer = new CustomClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);
    classNode.accept(writer);
    return writer.toByteArray();
}

Example 54 with MethodNode

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

the class ClassTransformer method patchLiquidBlock.

private byte[] patchLiquidBlock(byte[] basicClass) {
    ClassNode classNode = new ClassNode();
    ClassReader classReader = new ClassReader(basicClass);
    classReader.accept(classNode, 0);
    logger.log(Level.DEBUG, "Found BlockLiquid Class: " + classNode.name);
    MethodNode shouldSideBeRendered = null;
    for (MethodNode mn : classNode.methods) {
        if (mn.name.equals(MCPNames.method("func_176225_a"))) {
            shouldSideBeRendered = mn;
            break;
        }
    }
    if (shouldSideBeRendered != null) {
        logger.log(Level.DEBUG, " - Found shouldSideBeRendered (1/1)");
        LabelNode l1 = new LabelNode(new Label());
        InsnList toInsert = new InsnList();
        toInsert.add(new VarInsnNode(ALOAD, 0));
        toInsert.add(new VarInsnNode(ALOAD, 1));
        toInsert.add(new VarInsnNode(ALOAD, 2));
        toInsert.add(new VarInsnNode(ALOAD, 3));
        toInsert.add(new MethodInsnNode(INVOKESTATIC, asmHandler, "shouldLiquidSideBeRendered", "(Lnet/minecraft/block/BlockLiquid;Lnet/minecraft/world/IBlockAccess;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/util/EnumFacing;)I", false));
        toInsert.add(new InsnNode(DUP));
        toInsert.add(new JumpInsnNode(IFLT, l1));
        toInsert.add(new InsnNode(IRETURN));
        toInsert.add(l1);
        toInsert.add(new InsnNode(POP));
        shouldSideBeRendered.instructions.insert(toInsert);
    }
    CustomClassWriter writer = new CustomClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);
    classNode.accept(writer);
    return writer.toByteArray();
}

Example 55 with MethodNode

use of org.objectweb.asm.tree.MethodNode 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();
}