package codechicken.nei.asm; import codechicken.lib.asm.*; import codechicken.lib.asm.ModularASMTransformer.*; import net.minecraftforge.fml.relauncher.FMLLaunchHandler; import net.minecraft.launchwrapper.IClassTransformer; import org.objectweb.asm.Type; import org.objectweb.asm.tree.*; import java.util.Map; import static codechicken.lib.asm.InsnComparator.*; import static org.objectweb.asm.ClassWriter.COMPUTE_FRAMES; import static org.objectweb.asm.ClassWriter.COMPUTE_MAXS; import static org.objectweb.asm.Opcodes.*; public class NEITransformer implements IClassTransformer { private ModularASMTransformer transformer = new ModularASMTransformer(); private Map<String, ASMBlock> asmblocks = ASMReader.loadResource("/assets/nei/asm/blocks.asm"); public NEITransformer() { if(FMLLaunchHandler.side().isClient()) { //Generates method to set the placed position of a mob spawner for the item callback. More portable than copying vanilla placement code transformer.add(new MethodWriter(ACC_PUBLIC, new ObfMapping("net/minecraft/block/BlockMobSpawner", "func_180633_a", "(Lnet/minecraft/world/World;Lnet/minecraft/util/BlockPos;Lnet/minecraft/block/state/IBlockState;Lnet/minecraft/entity/EntityLivingBase;Lnet/minecraft/item/ItemStack;)V"), asmblocks.get("spawnerPlaced"))); } //Removes trailing seperators from NBTTagList/Compound.toString because OCD transformer.add(new MethodInjector(new ObfMapping("net/minecraft/nbt/NBTTagCompound", "toString", "()Ljava/lang/String;"), asmblocks.get("n_commaFix"), asmblocks.get("commaFix"), true)); transformer.add(new MethodInjector(new ObfMapping("net/minecraft/nbt/NBTTagList", "toString", "()Ljava/lang/String;"), asmblocks.get("n_commaFix"), asmblocks.get("commaFix"), true)); //fix workbench container losing items on shift click output without room for the full stack transformer.add(new MethodTransformer(new ObfMapping("net/minecraft/inventory/ContainerWorkbench", "func_82846_b", "(Lnet/minecraft/entity/player/EntityPlayer;I)Lnet/minecraft/item/ItemStack;")) { @Override public void transform(MethodNode mv) { ASMHelper.logger.debug("NEI: Applying workbench fix"); InsnListSection key = findN(mv.instructions, asmblocks.get("n_workbenchFix").list).get(0); key.insertBefore(asmblocks.get("workbenchFix").rawListCopy()); } }); String GuiContainer = "net/minecraft/client/gui/inventory/GuiContainer"; //add manager field transformer.add(new FieldWriter(ACC_PUBLIC, new ObfMapping(GuiContainer, "manager", "Lcodechicken/nei/guihook/GuiContainerManager;"))); //Fill out getManager in GuiContainerManager transformer.add(new MethodWriter(ACC_PUBLIC | ACC_STATIC, new ObfMapping("codechicken/nei/guihook/GuiContainerManager", "getManager", "(Lnet/minecraft/client/gui/inventory/GuiContainer;)Lcodechicken/nei/guihook/GuiContainerManager;"), asmblocks.get("m_getManager"))); //Generate load method transformer.add(new MethodWriter(ACC_PUBLIC, new ObfMapping(GuiContainer, "func_146280_a", "(Lnet/minecraft/client/Minecraft;II)V"), asmblocks.get("m_setWorldAndResolution"))); //Generate handleKeyboardInput method transformer.add(new MethodWriter(ACC_PUBLIC, new ObfMapping(GuiContainer, "func_146282_l", "()V"), asmblocks.get("m_handleKeyboardInput"))); //Generate handleKeyboardInput method transformer.add(new MethodWriter(ACC_PUBLIC, new ObfMapping(GuiContainer, "func_146282_l", "()V"), asmblocks.get("m_handleKeyboardInput"))); //Generate handleKeyboardInput method transformer.add(new MethodWriter(ACC_PUBLIC, new ObfMapping(GuiContainer, "func_146282_l", "()V"), asmblocks.get("m_handleKeyboardInput"))); //Generate handleMouseInput method transformer.add(new MethodWriter(ACC_PUBLIC, new ObfMapping(GuiContainer, "func_146274_d", "()V"), asmblocks.get("m_handleMouseInput"))); addProtectedForwarder( new ObfMapping(GuiContainer, "func_73869_a", "(CI)V"), new ObfMapping("codechicken/nei/guihook/GuiContainerManager", "callKeyTyped", "(Lnet/minecraft/client/gui/inventory/GuiContainer;CI)V")); addProtectedForwarder( new ObfMapping(GuiContainer, "func_146984_a", "(Lnet/minecraft/inventory/Slot;III)V"), new ObfMapping("codechicken/nei/guihook/DefaultSlotClickHandler", "callHandleMouseClick", "(Lnet/minecraft/client/gui/inventory/GuiContainer;Lnet/minecraft/inventory/Slot;III)V")); //Inject preDraw at the start of drawScreen transformer.add(new MethodInjector(new ObfMapping(GuiContainer, "func_73863_a", "(IIF)V"), asmblocks.get("preDraw"), true)); //Inject objectUnderMouse check before drawing slot highlights transformer.add(new MethodInjector(new ObfMapping(GuiContainer, "func_73863_a", "(IIF)V"), asmblocks.get("n_objectUnderMouse"), asmblocks.get("objectUnderMouse"), false)); //Inject renderObjects after drawGuiContainerForegroundLayer transformer.add(new MethodInjector(new ObfMapping(GuiContainer, "func_73863_a", "(IIF)V"), asmblocks.get("n_renderObjects"), asmblocks.get("renderObjects"), false)); //Replace default renderToolTip with delegate transformer.add(new MethodReplacer(new ObfMapping(GuiContainer, "func_73863_a", "(IIF)V"), asmblocks.get("d_renderToolTip"), asmblocks.get("renderTooltips"))); //Replace zLevel = 200 with zLevel = 500 in drawItemStack transformer.add(new MethodReplacer(new ObfMapping(GuiContainer, "func_146982_a", "(Lnet/minecraft/item/ItemStack;IILjava/lang/String;)V"), asmblocks.get("d_zLevel"), asmblocks.get("zLevel"))); //Replace default renderItem with delegate and slot overlay/underlay transformer.add(new MethodReplacer(new ObfMapping(GuiContainer, "func_146977_a", "(Lnet/minecraft/inventory/Slot;)V"), asmblocks.get("d_drawSlot"), asmblocks.get("drawSlot"))); //Inject mouseClicked hook at the start of mouseClicked transformer.add(new MethodInjector(new ObfMapping(GuiContainer, "func_73864_a", "(III)V"), asmblocks.get("mouseClicked"), true)); //Replace general handleMouseClicked call with delegate transformer.add(new MethodReplacer(new ObfMapping(GuiContainer, "func_73864_a", "(III)V"), asmblocks.get("d_handleMouseClick"), asmblocks.get("handleMouseClick")));//mouseClicked transformer.add(new MethodReplacer(new ObfMapping(GuiContainer, "func_146273_a", "(IIIJ)V"), asmblocks.get("d_handleMouseClick"), asmblocks.get("handleMouseClick")));//mouseClickMove transformer.add(new MethodReplacer(new ObfMapping(GuiContainer, "func_146286_b", "(III)V"), asmblocks.get("d_handleMouseClick"), asmblocks.get("handleMouseClick")));//mouseReleased transformer.add(new MethodReplacer(new ObfMapping(GuiContainer, "func_73869_a", "(CI)V"), asmblocks.get("d_handleMouseClick"), asmblocks.get("handleMouseClick")));//keyTyped transformer.add(new MethodReplacer(new ObfMapping(GuiContainer, "func_146983_a", "(I)Z"), asmblocks.get("d_handleMouseClick"), asmblocks.get("handleMouseClick")));//checkHotbarKeys //Write delegate for handleMouseClicked transformer.add(new MethodWriter(ACC_PUBLIC, new ObfMapping(GuiContainer, "managerHandleMouseClick", "(Lnet/minecraft/inventory/Slot;III)V"), asmblocks.get("m_managerHandleMouseClick"))); //Inject mouseDragged hook after super call in mouseDragged transformer.add(new MethodInjector(new ObfMapping(GuiContainer, "func_146273_a", "(IIIJ)V"), asmblocks.get("n_mouseDragged"), asmblocks.get("mouseDragged"), false)); //Inject overrideMouseUp at the start of mouseReleased transformer.add(new MethodInjector(new ObfMapping(GuiContainer, "func_146286_b", "(III)V"), asmblocks.get("overrideMouseUp"), true)); //Inject mouseUp at the end of main elseif chain in mouseReleased transformer.add(new MethodTransformer(new ObfMapping(GuiContainer, "func_146286_b", "(III)V")) { @Override public void transform(MethodNode mv) { ASMHelper.logger.debug("NEI: Injecting mouseUp call"); ASMBlock gotoBlock = asmblocks.get("n_mouseUpGoto"); ASMBlock needleBlock = asmblocks.get("n_mouseUp"); ASMBlock injectionBlock = asmblocks.get("mouseUp"); gotoBlock.mergeLabels(injectionBlock); findOnce(mv.instructions, gotoBlock.list).replace(gotoBlock.list.list); InsnListSection needle = findOnce(mv.instructions, needleBlock.list); injectionBlock.mergeLabels(needleBlock.applyLabels(needle)); needle.insertBefore(injectionBlock.list.list); } }); //Replace general handleSlotClick call with delegate transformer.add(new MethodReplacer(new ObfMapping(GuiContainer, "func_146984_a", "(Lnet/minecraft/inventory/Slot;III)V"), asmblocks.get("d_handleSlotClick"), asmblocks.get("handleSlotClick"))); //Inject lastKeyTyped at the start of keyTyped transformer.add(new MethodInjector(new ObfMapping(GuiContainer, "func_73869_a", "(CI)V"), asmblocks.get("lastKeyTyped"), true)); //Inject updateScreen hook after super call transformer.add(new MethodInjector(new ObfMapping(GuiContainer, "func_73876_c", "()V"), asmblocks.get("n_updateScreen"), asmblocks.get("updateScreen"), false)); //Cancel tab click calls when tabs are obscured transformer.add(new MethodInjector(new ObfMapping("net/minecraft/client/gui/inventory/GuiContainerCreative", "func_147049_a", "(Lnet/minecraft/creativetab/CreativeTabs;II)Z"), asmblocks.get("handleTabClick"), true)); //Cancel tab tooltip rendering when tabs are obscured transformer.add(new MethodInjector(new ObfMapping("net/minecraft/client/gui/inventory/GuiContainerCreative", "func_147052_b", "(Lnet/minecraft/creativetab/CreativeTabs;II)Z"), asmblocks.get("renderTabTooltip"), true)); String[] buttons = new String[]{"CancelButton", "ConfirmButton", "PowerButton"}; String[] this_fields = new String[]{"field_146146_o", "field_146147_o", "field_146150_o"}; for(int i = 0; i < 3; i++) { ObfMapping m = new ObfMapping("net/minecraft/client/gui/inventory/GuiBeacon$"+buttons[i], "func_146111_b", "(II)V"); InsnListSection l = asmblocks.get("beaconButtonObscured").list.copy(); FieldInsnNode this_ref = ((FieldInsnNode)l.get(1)); this_ref.owner = m.toClassloading().s_owner; if(ObfMapping.obfuscated) //missing srg mappings for inner outer reference fields this_ref.name = ObfMapping.obfMapper.mapFieldName(null, this_fields[i], null); transformer.add(new MethodInjector(m, l.list, true)); } } private void addProtectedForwarder(ObfMapping called, ObfMapping caller) { InsnList forward1 = new InsnList(); InsnList forward2 = new InsnList(); ObfMapping publicCall = new ObfMapping(called.s_owner, "public_"+called.s_name, called.s_desc); Type[] args = Type.getArgumentTypes(caller.s_desc); for(int i = 0; i < args.length; i++) { forward1.add(new VarInsnNode(args[i].getOpcode(ILOAD), i)); forward2.add(new VarInsnNode(args[i].getOpcode(ILOAD), i)); } forward1.add(publicCall.toInsn(INVOKEVIRTUAL)); forward2.add(called.toClassloading().toInsn(INVOKEVIRTUAL)); forward1.add(new InsnNode(Type.getReturnType(called.s_desc).getOpcode(IRETURN))); forward2.add(new InsnNode(Type.getReturnType(called.s_desc).getOpcode(IRETURN))); transformer.add(new MethodWriter(ACC_PUBLIC|ACC_STATIC, caller, forward1)); transformer.add(new MethodWriter(ACC_PUBLIC, publicCall, forward2)); } private ObfMapping c_GuiContainer = new ObfMapping("net/minecraft/client/gui/inventory/GuiContainer").toClassloading(); /** * Adds super.updateScreen() to non implementing GuiContainer subclasses */ public byte[] transformSubclasses(String name, byte[] bytes) { if (ClassHeirachyManager.classExtends(name, c_GuiContainer.javaClass())) { ClassNode cnode = ASMHelper.createClassNode(bytes); ObfMapping methodmap = new ObfMapping(cnode.superName, "func_73876_c", "()V").toClassloading(); InsnListSection supercall = new InsnListSection(); supercall.add(new VarInsnNode(ALOAD, 0)); supercall.add(methodmap.toInsn(INVOKESPECIAL)); boolean changed = false; for (MethodNode mv : cnode.methods) { if (methodmap.matches(mv)) { if (matches(new InsnListSection(mv.instructions), supercall, getControlFlowLabels(mv.instructions)) == null) { mv.instructions.insert(supercall.list); ASMHelper.logger.debug("Inserted super call into " + methodmap); changed = true; } } } if (changed) bytes = ASMHelper.createBytes(cnode, COMPUTE_MAXS | COMPUTE_FRAMES); } return bytes; } @Override public byte[] transform(String name, String tname, byte[] bytes) { if (bytes == null) return null; try { if (FMLLaunchHandler.side().isClient()) bytes = transformSubclasses(name, bytes); bytes = transformer.transform(name, bytes); } catch (Exception e) { throw new RuntimeException(e); } return bytes; } }