use of org.objectweb.asm.tree.LabelNode in project Random-Things by lumien231.
the class ClassTransformer method patchEntityLivingBase.
private byte[] patchEntityLivingBase(byte[] basicClass) {
ClassNode classNode = new ClassNode();
ClassReader classReader = new ClassReader(basicClass);
classReader.accept(classNode, 0);
logger.log(Level.DEBUG, "Found EntityLivingBase Class: " + classNode.name);
MethodNode updatePotionEffects = null;
MethodNode travel = null;
for (MethodNode mn : classNode.methods) {
if (mn.name.equals(MCPNames.method("func_70679_bo"))) {
updatePotionEffects = mn;
} else if (mn.name.equals(MCPNames.method("func_191986_a"))) {
travel = mn;
}
}
if (updatePotionEffects != null) {
logger.log(Level.DEBUG, "- Found updatePotionEffects (1/2)");
for (int i = 0; i < updatePotionEffects.instructions.size(); i++) {
AbstractInsnNode ain = updatePotionEffects.instructions.get(i);
if (ain instanceof FieldInsnNode) {
FieldInsnNode fin = (FieldInsnNode) ain;
if (fin.name.equals(MCPNames.field("field_70180_af"))) {
AbstractInsnNode aload = updatePotionEffects.instructions.get(i - 1);
InsnList toInsert = new InsnList();
LabelNode l1 = new LabelNode(new Label());
toInsert.add(new VarInsnNode(ALOAD, 0));
toInsert.add(new MethodInsnNode(INVOKESTATIC, asmHandler, "shouldRenderPotionParticles", "(Lnet/minecraft/entity/EntityLivingBase;)Z", false));
toInsert.add(new JumpInsnNode(IFGT, l1));
toInsert.add(new InsnNode(RETURN));
toInsert.add(l1);
updatePotionEffects.instructions.insertBefore(aload, toInsert);
break;
}
}
}
}
if (travel != null) {
logger.log(Level.DEBUG, "- Found travel (2/2)");
for (int i = 0; i < travel.instructions.size(); i++) {
AbstractInsnNode ain = travel.instructions.get(i);
if (ain instanceof LdcInsnNode) {
LdcInsnNode lin = (LdcInsnNode) ain;
if (lin.cst.equals(new Float("0.91"))) {
AbstractInsnNode next = travel.instructions.get(i + 1);
if (next.getOpcode() == Opcodes.FMUL) {
InsnList toInsert = new InsnList();
toInsert.add(new VarInsnNode(ALOAD, 0));
toInsert.add(new VarInsnNode(ALOAD, 0));
toInsert.add(new FieldInsnNode(GETFIELD, "net/minecraft/entity/EntityLivingBase", MCPNames.field("field_70170_p"), "Lnet/minecraft/world/World;"));
toInsert.add(new VarInsnNode(ALOAD, 5));
toInsert.add(new MethodInsnNode(INVOKEVIRTUAL, "net/minecraft/world/World", MCPNames.method("func_180495_p"), "(Lnet/minecraft/util/math/BlockPos;)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 MethodInsnNode(INVOKESTATIC, asmHandler, "slipFix", "(FLnet/minecraft/entity/EntityLivingBase;Lnet/minecraft/block/Block;)F", false));
travel.instructions.insert(next, toInsert);
i += 6;
}
}
}
}
}
CustomClassWriter writer = new CustomClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);
classNode.accept(writer);
return writer.toByteArray();
}
use of org.objectweb.asm.tree.LabelNode in project Random-Things by lumien231.
the class ClassTransformer method patchEntitySlime.
private byte[] patchEntitySlime(byte[] basicClass) {
ClassNode classNode = new ClassNode();
ClassReader classReader = new ClassReader(basicClass);
classReader.accept(classNode, 0);
logger.log(Level.DEBUG, "Found EntitySlime Class: " + classNode.name);
MethodNode getCanSpawnHere = null;
for (MethodNode mn : classNode.methods) {
if (mn.name.equals(MCPNames.method("func_70601_bi"))) {
getCanSpawnHere = mn;
break;
}
}
if (getCanSpawnHere != null) {
logger.log(Level.DEBUG, " - Found getCanSpawnHere");
for (int i = 0; i < getCanSpawnHere.instructions.size(); i++) {
AbstractInsnNode ain = getCanSpawnHere.instructions.get(i);
if (ain instanceof FieldInsnNode) {
FieldInsnNode fin = (FieldInsnNode) ain;
if (fin.name.equals("PEACEFUL")) {
logger.log(Level.DEBUG, " - Found Insertion Point");
AbstractInsnNode skip = getCanSpawnHere.instructions.get(i + 1);
LabelNode l0 = new LabelNode(new Label());
InsnList toInsert = new InsnList();
toInsert.add(new VarInsnNode(ALOAD, 0));
toInsert.add(new FieldInsnNode(Opcodes.GETFIELD, "net/minecraft/entity/monster/EntitySlime", MCPNames.field("field_70170_p"), "Lnet/minecraft/world/World;"));
toInsert.add(new VarInsnNode(ALOAD, 2));
toInsert.add(new MethodInsnNode(INVOKESTATIC, asmHandler, "overrideSlimeChunk", "(Lnet/minecraft/world/World;Lnet/minecraft/world/chunk/Chunk;)I", false));
toInsert.add(new InsnNode(DUP));
toInsert.add(new JumpInsnNode(IFLT, l0));
toInsert.add(new InsnNode(IRETURN));
toInsert.add(l0);
toInsert.add(new InsnNode(POP));
getCanSpawnHere.instructions.insert(skip, toInsert);
}
}
}
}
CustomClassWriter writer = new CustomClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);
classNode.accept(writer);
return writer.toByteArray();
}
use of org.objectweb.asm.tree.LabelNode in project Random-Things by lumien231.
the class ClassTransformer method patchRenderItem.
private byte[] patchRenderItem(byte[] basicClass) {
ClassNode classNode = new ClassNode();
ClassReader classReader = new ClassReader(basicClass);
classReader.accept(classNode, 0);
logger.log(Level.DEBUG, "Found RenderItem Class: " + classNode.name);
MethodNode renderEffect = null;
MethodNode renderItem = null;
MethodNode renderQuads = null;
for (MethodNode mn : classNode.methods) {
if (mn.name.equals(MCPNames.method("func_191966_a"))) {
renderEffect = mn;
} else if (mn.name.equals(MCPNames.method("func_180454_a")) && mn.desc.equals("(Lnet/minecraft/item/ItemStack;Lnet/minecraft/client/renderer/block/model/IBakedModel;)V")) {
renderItem = mn;
} else if (mn.name.equals(MCPNames.method("func_191970_a"))) {
renderQuads = mn;
}
}
if (renderEffect != null) {
logger.log(Level.DEBUG, "- Found renderEffect (1/3)");
renderEffect.instructions.insert(new MethodInsnNode(INVOKESTATIC, asmHandler, "preEnchantment", "()V", false));
for (int i = 0; i < renderEffect.instructions.size(); i++) {
AbstractInsnNode ain = renderEffect.instructions.get(i);
if (ain instanceof LdcInsnNode) {
LdcInsnNode lin = (LdcInsnNode) ain;
if (lin.cst.equals(new Integer(-8372020))) {
logger.log(Level.DEBUG, "- Found Texture Binding");
renderEffect.instructions.insert(lin, new MethodInsnNode(INVOKESTATIC, asmHandler, "enchantmentColorHook", "(I)I", false));
}
} else if (ain.getOpcode() == RETURN) {
renderEffect.instructions.insertBefore(ain, new MethodInsnNode(INVOKESTATIC, asmHandler, "postEnchantment", "()V", false));
i++;
}
}
}
if (renderItem != null) {
boolean found = false;
logger.log(Level.DEBUG, "- Found renderItem (2/3) (" + renderItem.desc + ")");
for (int i = 0; i < renderItem.instructions.size(); i++) {
AbstractInsnNode ain = renderItem.instructions.get(i);
if (ain instanceof MethodInsnNode) {
MethodInsnNode min = (MethodInsnNode) ain;
if (!found) {
if (min.name.equals(MCPNames.method("func_191966_a"))) {
logger.log(Level.DEBUG, "- Found renderEffect calling");
InsnList toInsert = new InsnList();
toInsert.add(new VarInsnNode(ALOAD, 1));
toInsert.add(new FieldInsnNode(PUTSTATIC, asmHandler, "currentlyRendering", "Lnet/minecraft/item/ItemStack;"));
renderItem.instructions.insertBefore(min, toInsert);
toInsert = new InsnList();
toInsert.add(new InsnNode(ACONST_NULL));
toInsert.add(new FieldInsnNode(PUTSTATIC, asmHandler, "currentlyRendering", "Lnet/minecraft/item/ItemStack;"));
renderItem.instructions.insert(min, toInsert);
found = true;
}
}
if (min.name.equals(MCPNames.method("func_179022_a"))) {
LabelNode l1 = new LabelNode(new Label());
LabelNode l2 = new LabelNode(new Label());
logger.log(Level.DEBUG, "- Inserting TE Item Renderer");
InsnList insertBefore = new InsnList();
insertBefore.add(new FieldInsnNode(GETSTATIC, "lumien/randomthings/client/RandomThingsTEItemRenderer", "instance", "Llumien/randomthings/client/RandomThingsTEItemRenderer;"));
insertBefore.add(new VarInsnNode(ALOAD, 1));
insertBefore.add(new MethodInsnNode(INVOKEVIRTUAL, "lumien/randomthings/client/RandomThingsTEItemRenderer", "renderByItem", "(Lnet/minecraft/item/ItemStack;)Z", false));
insertBefore.add(new JumpInsnNode(IFEQ, l2));
insertBefore.add(new InsnNode(POP));
insertBefore.add(new InsnNode(POP));
insertBefore.add(new JumpInsnNode(GOTO, l1));
insertBefore.add(l2);
InsnList insertAfter = new InsnList();
insertAfter.add(l1);
renderItem.instructions.insertBefore(min, insertBefore);
renderItem.instructions.insert(min, insertAfter);
i += 8;
}
}
}
}
if (renderQuads != null) {
logger.log(Level.DEBUG, "- Found renderQuads (3/3) (" + renderQuads.desc + ")");
String luminousHandler = "lumien/randomthings/handler/LuminousHandler";
InsnList startInsrt = new InsnList();
startInsrt.add(new VarInsnNode(ALOAD, 4));
startInsrt.add(new VarInsnNode(ALOAD, 1));
startInsrt.add(new MethodInsnNode(INVOKESTATIC, luminousHandler, "luminousHookStart", "(Lnet/minecraft/item/ItemStack;Lnet/minecraft/client/renderer/BufferBuilder;)V", false));
renderQuads.instructions.insert(startInsrt);
for (int i = 0; i < renderQuads.instructions.size(); i++) {
AbstractInsnNode ain = renderQuads.instructions.get(i);
if (ain instanceof MethodInsnNode) {
MethodInsnNode min = (MethodInsnNode) ain;
if (min.name.equals("renderQuadColor")) {
InsnList toInsert = new InsnList();
toInsert.add(new VarInsnNode(ALOAD, 8));
toInsert.add(new MethodInsnNode(INVOKEVIRTUAL, "net/minecraft/client/renderer/block/model/BakedQuad", MCPNames.method("func_178211_c"), "()I", false));
toInsert.add(new MethodInsnNode(INVOKESTATIC, luminousHandler, "luminousHookPre", "(I)V", false));
toInsert.add(new InsnNode(POP));
toInsert.add(new VarInsnNode(ALOAD, 4));
toInsert.add(new VarInsnNode(ILOAD, 9));
toInsert.add(new MethodInsnNode(INVOKESTATIC, asmHandler, "getColorFromItemStack", "(Lnet/minecraft/item/ItemStack;I)I", false));
renderQuads.instructions.insertBefore(min, toInsert);
i += 7;
renderQuads.instructions.insert(min, new MethodInsnNode(INVOKESTATIC, luminousHandler, "luminousHookPost", "()V", false));
}
} else if (ain.getOpcode() == RETURN) {
renderQuads.instructions.insertBefore(ain, new MethodInsnNode(INVOKESTATIC, luminousHandler, "luminousHookEnd", "()V", false));
i++;
}
}
}
CustomClassWriter writer = new CustomClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);
classNode.accept(writer);
return writer.toByteArray();
}
use of org.objectweb.asm.tree.LabelNode in project Random-Things by lumien231.
the class ClassTransformer method patchBlock.
private byte[] patchBlock(byte[] basicClass) {
ClassNode classNode = new ClassNode();
ClassReader classReader = new ClassReader(basicClass);
classReader.accept(classNode, 0);
logger.log(Level.DEBUG, "Found Block Class: " + classNode.name);
MethodNode addCollisionBoxesToList = null;
for (MethodNode mn : classNode.methods) {
if (mn.name.equals(MCPNames.method("func_185477_a")) && mn.desc.equals("(Lnet/minecraft/block/state/IBlockState;Lnet/minecraft/world/World;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/util/math/AxisAlignedBB;Ljava/util/List;Lnet/minecraft/entity/Entity;Z)V")) {
addCollisionBoxesToList = mn;
}
}
if (addCollisionBoxesToList != null) {
logger.log(Level.DEBUG, "- Found addCollisionBoxesToList (1/1)");
InsnList toInsert = new InsnList();
LabelNode l1 = new LabelNode(new Label());
toInsert.add(new VarInsnNode(ALOAD, 1));
toInsert.add(new VarInsnNode(ALOAD, 2));
toInsert.add(new VarInsnNode(ALOAD, 3));
toInsert.add(new VarInsnNode(ALOAD, 4));
toInsert.add(new VarInsnNode(ALOAD, 5));
toInsert.add(new VarInsnNode(ALOAD, 6));
toInsert.add(new MethodInsnNode(INVOKESTATIC, asmHandler, "addCollisionBoxesToList", "(Lnet/minecraft/block/state/IBlockState;Lnet/minecraft/world/World;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/util/math/AxisAlignedBB;Ljava/util/List;Lnet/minecraft/entity/Entity;)Z", false));
toInsert.add(new JumpInsnNode(IFEQ, l1));
toInsert.add(new InsnNode(RETURN));
toInsert.add(l1);
addCollisionBoxesToList.instructions.insert(toInsert);
}
CustomClassWriter writer = new CustomClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);
classNode.accept(writer);
return writer.toByteArray();
}
use of org.objectweb.asm.tree.LabelNode 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;
}
}
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