diff options
Diffstat (limited to 'src/main/java/me/djtheredstoner')
14 files changed, 890 insertions, 0 deletions
diff --git a/src/main/java/me/djtheredstoner/perspectivemod/PerspectiveMod.java b/src/main/java/me/djtheredstoner/perspectivemod/PerspectiveMod.java new file mode 100644 index 0000000..8ef5ed5 --- /dev/null +++ b/src/main/java/me/djtheredstoner/perspectivemod/PerspectiveMod.java @@ -0,0 +1,133 @@ +package me.djtheredstoner.perspectivemod; + +import me.djtheredstoner.perspectivemod.commands.PerspectiveModCommand; +import me.djtheredstoner.perspectivemod.config.PerspectiveModConfig; +import net.minecraft.client.Minecraft; +import net.minecraft.client.settings.GameSettings; +import net.minecraft.client.settings.KeyBinding; +import net.minecraftforge.client.ClientCommandHandler; +import net.minecraftforge.client.event.GuiOpenEvent; +import net.minecraftforge.common.MinecraftForge; +import net.minecraftforge.event.world.WorldEvent; +import net.minecraftforge.fml.client.registry.ClientRegistry; +import net.minecraftforge.fml.common.Mod; +import net.minecraftforge.fml.common.event.FMLInitializationEvent; +import net.minecraftforge.fml.common.eventhandler.SubscribeEvent; +import net.minecraftforge.fml.common.gameevent.TickEvent; +import org.apache.logging.log4j.LogManager; +import org.apache.logging.log4j.Logger; +import org.lwjgl.input.Keyboard; +import org.lwjgl.opengl.Display; + +@Mod(modid = "djperspectivemod", name = "Perspective Mod v4", version = "4.5", acceptedMinecraftVersions = "[1.8.9]", clientSideOnly = true) +public class PerspectiveMod { + + @Mod.Instance + public static PerspectiveMod instance; + + public final PerspectiveModConfig config = new PerspectiveModConfig(); + + public boolean perspectiveToggled = false; + public float cameraYaw = 0F; + public float cameraPitch = 0F; + + private int previousPerspective = 0; + private boolean prevState = false; + + private final Minecraft mc = Minecraft.getMinecraft(); + private final KeyBinding perspectiveKey = new KeyBinding("Perspective", Keyboard.KEY_LMENU, "Perspective Mod"); + private final Logger logger = LogManager.getLogger("Perspective Mod v4"); + + @Mod.EventHandler + public void init(FMLInitializationEvent event) { + config.preload(); + + ClientRegistry.registerKeyBinding(perspectiveKey); + new PerspectiveModCommand("perspectivemod").register(); + new PerspectiveModCommand("pmod").register(); + MinecraftForge.EVENT_BUS.register(this); + } + + @SubscribeEvent + public void tick(TickEvent.RenderTickEvent event) { + boolean down = GameSettings.isKeyDown(perspectiveKey); + if(down != prevState && mc.currentScreen == null && mc.theWorld != null && mc.thePlayer != null) { + prevState = down; + onPressed(down); + } + } + + @SubscribeEvent + public void onGuiOpen(GuiOpenEvent event) { + if (event.gui != null && perspectiveToggled && config.holdMode) { + resetPerspective(); + } + } + + @SubscribeEvent + public void onWorldLoad(WorldEvent.Load event) { + if (perspectiveToggled) { + resetPerspective(); + } + } + + public void onPressed(boolean state) { + if (config.modEnabled) { + if (state) { + cameraYaw = mc.thePlayer.rotationYaw; + cameraPitch = mc.thePlayer.rotationPitch; + + if (perspectiveToggled) { + resetPerspective(); + } else { + enterPerspective(); + } + mc.renderGlobal.setDisplayListEntitiesDirty(); + } else if (config.holdMode) { + resetPerspective(); + } + } else if (perspectiveToggled) { + resetPerspective(); + } + } + + public void enterPerspective() { + perspectiveToggled = true; + previousPerspective = mc.gameSettings.thirdPersonView; + mc.gameSettings.thirdPersonView = 1; + } + + public void resetPerspective() { + perspectiveToggled = false; + mc.gameSettings.thirdPersonView = previousPerspective; + mc.renderGlobal.setDisplayListEntitiesDirty(); + } + + public boolean overrideMouse() { + if (mc.inGameHasFocus && Display.isActive()) { + if (!perspectiveToggled) { + return true; + } + + // CODE + mc.mouseHelper.mouseXYChange(); + float f1 = mc.gameSettings.mouseSensitivity * 0.6F + 0.2F; + float f2 = f1 * f1 * f1 * 8.0F; + float f3 = (float) mc.mouseHelper.deltaX * f2; + float f4 = (float) mc.mouseHelper.deltaY * f2; + + if(config.invertPitch) { + f4 = -f4; + } + + cameraYaw += f3 * 0.15F; + cameraPitch += f4 * 0.15F; + + if (cameraPitch > 90) cameraPitch = 90; + if (cameraPitch < -90) cameraPitch = -90; + mc.renderGlobal.setDisplayListEntitiesDirty(); + } + + return false; + } +} diff --git a/src/main/java/me/djtheredstoner/perspectivemod/asm/ClassTransformer.java b/src/main/java/me/djtheredstoner/perspectivemod/asm/ClassTransformer.java new file mode 100644 index 0000000..c7db68b --- /dev/null +++ b/src/main/java/me/djtheredstoner/perspectivemod/asm/ClassTransformer.java @@ -0,0 +1,118 @@ +package me.djtheredstoner.perspectivemod.asm; + +import com.google.common.collect.ArrayListMultimap; +import com.google.common.collect.Multimap; +import me.djtheredstoner.perspectivemod.asm.transformers.ActiveRenderInfoTransformer; +import me.djtheredstoner.perspectivemod.asm.transformers.EntityRendererTransformer; +import me.djtheredstoner.perspectivemod.asm.transformers.MinecraftTransformer; +import me.djtheredstoner.perspectivemod.asm.transformers.RenderManagerTransformer; +import net.minecraft.launchwrapper.IClassTransformer; +import org.apache.logging.log4j.LogManager; +import org.apache.logging.log4j.Logger; +import org.objectweb.asm.ClassReader; +import org.objectweb.asm.ClassWriter; +import org.objectweb.asm.tree.ClassNode; + +import java.io.File; +import java.io.FileOutputStream; +import java.io.IOException; +import java.util.Collection; + +public class ClassTransformer implements IClassTransformer { + + // create a logger to distinguish our errors from a normal error + private static final Logger LOGGER = LogManager.getLogger("Perspective Mod v4 Transformer"); + + // create a map of transformers + private final Multimap<String, ITransformer> transformerMap = ArrayListMultimap.create(); + + // make a jvm flag that could be used to dump transformed classes + // usable by adding -DdebugBytecode=true to the jvm arguments + public static final boolean outputBytecode = Boolean.parseBoolean(System.getProperty("debugBytecode", "false")); + + public ClassTransformer() { + // any transformer will be registered here + registerTransformer(new EntityRendererTransformer()); + registerTransformer(new RenderManagerTransformer()); + registerTransformer(new MinecraftTransformer()); + registerTransformer(new ActiveRenderInfoTransformer()); + } + + private void registerTransformer(ITransformer transformer) { + // loop through names of classes + for (String cls : transformer.getClassName()) { + // put the classes into the transformer map + transformerMap.put(cls, transformer); + } + } + + @SuppressWarnings("ResultOfMethodCallIgnored") + @Override + public byte[] transform(String name, String transformedName, byte[] bytes) { + if (bytes == null) return null; + + // get the list of transformers + Collection<ITransformer> transformers = transformerMap.get(transformedName); + // if empty, don't bother trying to run through transformation + if (transformers.isEmpty()) return bytes; + + // wjat + ClassReader reader = new ClassReader(bytes); + ClassNode node = new ClassNode(); + reader.accept(node, ClassReader.EXPAND_FRAMES); + + // for every transformer, perform the transformations + for (ITransformer transformer : transformers) { + transformer.transform(node, transformedName); + } + + // what????? + ClassWriter writer = new ClassWriter(ClassWriter.COMPUTE_FRAMES); + + try { + // write™ + node.accept(writer); + } catch (Throwable t) { + LOGGER.error("Exception when transforming " + transformedName + " : " + t.getClass().getSimpleName()); + t.printStackTrace(); + } + + if (outputBytecode) { + File bytecodeDirectory = new File("bytecode"); + String transformedClassName; + + // anonymous classes + if (transformedName.contains("$")) { + transformedClassName = transformedName.replace('$', '.') + ".class"; + } else { + transformedClassName = transformedName + ".class"; + } + + if (!bytecodeDirectory.exists()) { + bytecodeDirectory.mkdirs(); + } + + File bytecodeOutput = new File(bytecodeDirectory, transformedClassName); + + try { + if (!bytecodeOutput.exists()) { + bytecodeOutput.createNewFile(); + } + } catch (Exception e) { + e.printStackTrace(); + } + + try (FileOutputStream os = new FileOutputStream(bytecodeOutput)) { + // write to the generated class to /run/bytecode/classfile.class + // with the class bytes from transforming + os.write(writer.toByteArray()); + } catch (IOException e) { + e.printStackTrace(); + } + } + + // return the written bytes and finalize transform + return writer.toByteArray(); + } + +} diff --git a/src/main/java/me/djtheredstoner/perspectivemod/asm/ITransformer.java b/src/main/java/me/djtheredstoner/perspectivemod/asm/ITransformer.java new file mode 100644 index 0000000..9ef82be --- /dev/null +++ b/src/main/java/me/djtheredstoner/perspectivemod/asm/ITransformer.java @@ -0,0 +1,98 @@ +package me.djtheredstoner.perspectivemod.asm; + +import net.minecraftforge.fml.common.asm.transformers.deobf.FMLDeobfuscatingRemapper; +import org.objectweb.asm.tree.*; + +public interface ITransformer { + + /** + * The class name that's being transformed + * + * @return the class name + */ + String[] getClassName(); + + /** + * Perform any asm in order to transform code + * + * @param classNode the transformed class node + * @param name the transformed class name + */ + void transform(ClassNode classNode, String name); + + /** + * Map the method name from notch names + * + * @param classNode the transformed class node + * @param methodNode the transformed classes method node + * @return a mapped method name + */ + default String mapMethodName(ClassNode classNode, MethodNode methodNode) { + return FMLDeobfuscatingRemapper.INSTANCE.mapMethodName(classNode.name, methodNode.name, methodNode.desc); + } + + /** + * Map the field name from notch names + * + * @param classNode the transformed class node + * @param fieldNode the transformed classes field node + * @return a mapped field name + */ + default String mapFieldName(ClassNode classNode, FieldNode fieldNode) { + return FMLDeobfuscatingRemapper.INSTANCE.mapFieldName(classNode.name, fieldNode.name, fieldNode.desc); + } + + /** + * Map the method desc from notch names + * + * @param methodNode the transformed method node + * @return a mapped method desc + */ + default String mapMethodDesc(MethodNode methodNode) { + return FMLDeobfuscatingRemapper.INSTANCE.mapMethodDesc(methodNode.desc); + } + + /** + * Map the method name from notch names + * + * @param methodInsnNode the transformed method insn node + * @return a mapped insn method + */ + default String mapMethodNameFromNode(MethodInsnNode methodInsnNode) { + return FMLDeobfuscatingRemapper.INSTANCE.mapMethodName(methodInsnNode.owner, methodInsnNode.name, methodInsnNode.desc); + } + + /** + * Map the field name from notch names + * + * @param fieldInsnNode the transformed field insn node + * @return a mapped insn field + */ + default String mapFieldNameFromNode(FieldInsnNode fieldInsnNode) { + return FMLDeobfuscatingRemapper.INSTANCE.mapFieldName(fieldInsnNode.owner, fieldInsnNode.name, fieldInsnNode.desc); + } + + default String mapClassName(String name) { + return FMLDeobfuscatingRemapper.INSTANCE.mapType(name); + } + + /** + * Remove instructions to this method + * + * @param methodNode the method being cleared + */ + default void clearInstructions(MethodNode methodNode) { + methodNode.instructions.clear(); + + // dont waste time clearing local variables if they're empty + if (!methodNode.localVariables.isEmpty()) { + methodNode.localVariables.clear(); + } + + // dont waste time clearing try-catches if they're empty + if (!methodNode.tryCatchBlocks.isEmpty()) { + methodNode.tryCatchBlocks.clear(); + } + } + +} diff --git a/src/main/java/me/djtheredstoner/perspectivemod/asm/hooks/ActiveRenderInfoHook.java b/src/main/java/me/djtheredstoner/perspectivemod/asm/hooks/ActiveRenderInfoHook.java new file mode 100644 index 0000000..94296d1 --- /dev/null +++ b/src/main/java/me/djtheredstoner/perspectivemod/asm/hooks/ActiveRenderInfoHook.java @@ -0,0 +1,16 @@ +package me.djtheredstoner.perspectivemod.asm.hooks; + +import me.djtheredstoner.perspectivemod.PerspectiveMod; +import net.minecraft.entity.player.EntityPlayer; + +public class ActiveRenderInfoHook { + + public static float rotationYawHook(EntityPlayer entity) { + return PerspectiveMod.instance.perspectiveToggled ? PerspectiveMod.instance.cameraYaw : entity.rotationYaw; + } + + public static float rotationPitchHook(EntityPlayer entity) { + return PerspectiveMod.instance.perspectiveToggled ? PerspectiveMod.instance.cameraPitch : entity.rotationPitch; + } + +} diff --git a/src/main/java/me/djtheredstoner/perspectivemod/asm/hooks/EntityRendererHook.java b/src/main/java/me/djtheredstoner/perspectivemod/asm/hooks/EntityRendererHook.java new file mode 100644 index 0000000..a6ea788 --- /dev/null +++ b/src/main/java/me/djtheredstoner/perspectivemod/asm/hooks/EntityRendererHook.java @@ -0,0 +1,32 @@ +package me.djtheredstoner.perspectivemod.asm.hooks; + +import me.djtheredstoner.perspectivemod.PerspectiveMod; +import net.minecraft.client.Minecraft; +import net.minecraft.entity.Entity; + +public class EntityRendererHook { + + public static float rotationYawHook(Entity entity) { + return PerspectiveMod.instance.perspectiveToggled ? PerspectiveMod.instance.cameraYaw : entity.rotationYaw; + } + + public static float prevRotationYawHook(Entity entity) { + return PerspectiveMod.instance.perspectiveToggled ? PerspectiveMod.instance.cameraYaw : entity.prevRotationYaw; + } + + public static float rotationPitchHook(Entity entity) { + return PerspectiveMod.instance.perspectiveToggled ? PerspectiveMod.instance.cameraPitch : entity.rotationPitch; + } + + public static float prevRotationPitchHook(Entity entity) { + return PerspectiveMod.instance.perspectiveToggled ? PerspectiveMod.instance.cameraPitch : entity.prevRotationPitch; + } + + public static boolean mouseHook(Minecraft minecraft) { + return PerspectiveMod.instance == null ? minecraft.inGameHasFocus : PerspectiveMod.instance.overrideMouse(); + } + + public static double distanceHook(double value) { + return value; + } +} diff --git a/src/main/java/me/djtheredstoner/perspectivemod/asm/hooks/MinecraftHook.java b/src/main/java/me/djtheredstoner/perspectivemod/asm/hooks/MinecraftHook.java new file mode 100644 index 0000000..31914f8 --- /dev/null +++ b/src/main/java/me/djtheredstoner/perspectivemod/asm/hooks/MinecraftHook.java @@ -0,0 +1,16 @@ +package me.djtheredstoner.perspectivemod.asm.hooks; + +import me.djtheredstoner.perspectivemod.PerspectiveMod; +import net.minecraft.client.settings.GameSettings; + +public class MinecraftHook { + + public static void thirdPersonHook(GameSettings gameSettings, int value) { + if(PerspectiveMod.instance.perspectiveToggled) { + PerspectiveMod.instance.resetPerspective(); + } else { + gameSettings.thirdPersonView = value; + } + } + +} diff --git a/src/main/java/me/djtheredstoner/perspectivemod/asm/hooks/RenderManagerHook.java b/src/main/java/me/djtheredstoner/perspectivemod/asm/hooks/RenderManagerHook.java new file mode 100644 index 0000000..2f55de1 --- /dev/null +++ b/src/main/java/me/djtheredstoner/perspectivemod/asm/hooks/RenderManagerHook.java @@ -0,0 +1,15 @@ +package me.djtheredstoner.perspectivemod.asm.hooks; + +import me.djtheredstoner.perspectivemod.PerspectiveMod; +import net.minecraft.client.renderer.entity.RenderManager; + +public class RenderManagerHook { + + public static void playerViewXHook(RenderManager renderManager, float value) { + renderManager.playerViewX = PerspectiveMod.instance.perspectiveToggled ? PerspectiveMod.instance.cameraPitch : value; + } + + public static void playerViewYHook(RenderManager renderManager, float value) { + renderManager.playerViewY = PerspectiveMod.instance.perspectiveToggled ? PerspectiveMod.instance.cameraYaw : value; + } +} diff --git a/src/main/java/me/djtheredstoner/perspectivemod/asm/transformers/ActiveRenderInfoTransformer.java b/src/main/java/me/djtheredstoner/perspectivemod/asm/transformers/ActiveRenderInfoTransformer.java new file mode 100644 index 0000000..9a37575 --- /dev/null +++ b/src/main/java/me/djtheredstoner/perspectivemod/asm/transformers/ActiveRenderInfoTransformer.java @@ -0,0 +1,68 @@ +package me.djtheredstoner.perspectivemod.asm.transformers; + +import me.djtheredstoner.perspectivemod.asm.ITransformer; +import org.objectweb.asm.tree.*; + +import java.util.ListIterator; + +import static org.objectweb.asm.Opcodes.*; + +public class ActiveRenderInfoTransformer implements ITransformer { + + private static final String HOOK_CLASS = "me/djtheredstoner/perspectivemod/asm/hooks/ActiveRenderInfoHook"; + + @Override + public String[] getClassName() { + return new String[]{"net.minecraft.client.renderer.ActiveRenderInfo"}; + } + + @Override + public void transform(ClassNode classNode, String name) { + for (MethodNode method : classNode.methods) { + String methodName = mapMethodName(classNode, method); + + if (methodName.equals("updateRenderInfo") || methodName.equals("func_74583_a")) { + ListIterator<AbstractInsnNode> iterator = method.instructions.iterator(); + + while (iterator.hasNext()) { + AbstractInsnNode next = iterator.next(); + + if(next.getOpcode() == GETFIELD) { + FieldInsnNode insn = (FieldInsnNode) next; + + String ownerName = mapClassName(insn.owner); + String fieldName = mapFieldNameFromNode(insn); + + if(ownerName.equals("net/minecraft/entity/player/EntityPlayer") && insn.desc.equals("F")) { + InsnList insnList = null; + + switch (fieldName) { + case "rotationPitch": + case "field_70125_A": + insnList = insertRotationHook("Pitch"); + break; + case "rotationYaw": + case "field_70177_z": + insnList = insertRotationHook("Yaw"); + break; + } + + if(insnList != null) { + method.instructions.insertBefore(insn, insnList); + method.instructions.remove(insn); + } + } + } + } + } + } + } + + private InsnList insertRotationHook(String field) { + InsnList insnList = new InsnList(); + + insnList.add(new MethodInsnNode(INVOKESTATIC, HOOK_CLASS, "rotation" + field + "Hook", "(Lnet/minecraft/entity/player/EntityPlayer;)F", false)); + + return insnList; + } +} diff --git a/src/main/java/me/djtheredstoner/perspectivemod/asm/transformers/EntityRendererTransformer.java b/src/main/java/me/djtheredstoner/perspectivemod/asm/transformers/EntityRendererTransformer.java new file mode 100644 index 0000000..3b6a5ae --- /dev/null +++ b/src/main/java/me/djtheredstoner/perspectivemod/asm/transformers/EntityRendererTransformer.java @@ -0,0 +1,128 @@ +package me.djtheredstoner.perspectivemod.asm.transformers; + +import me.djtheredstoner.perspectivemod.asm.ITransformer; +import org.objectweb.asm.tree.*; + +import java.util.Iterator; + +import static org.objectweb.asm.Opcodes.*; + +/** + * @see net.minecraft.client.renderer.EntityRenderer + */ +public class EntityRendererTransformer implements ITransformer { + + private static final String HOOK_CLASS = "me/djtheredstoner/perspectivemod/asm/hooks/EntityRendererHook"; + + @Override + public String[] getClassName() { + return new String[]{"net.minecraft.client.renderer.EntityRenderer"}; + } + + @Override + public void transform(ClassNode classNode, String name) { + for (MethodNode method : classNode.methods) { + String methodName = mapMethodName(classNode, method); + + if (methodName.equals("orientCamera") || methodName.equals("func_78467_g")) { + + Iterator<AbstractInsnNode> iterator = method.instructions.iterator(); + + while (iterator.hasNext()) { + AbstractInsnNode next = iterator.next(); + + if(next.getOpcode() == GETFIELD) { + FieldInsnNode insn = (FieldInsnNode)next; + + String ownerName = mapClassName(insn.owner); + String fieldName = mapFieldNameFromNode(insn); + + if(ownerName.equals("net/minecraft/entity/Entity" ) && insn.desc.equals("F")) { + + InsnList insnList = null; + + switch (fieldName) { + case "rotationYaw": + case "field_70177_z": + insnList = insertRotationHook("rotationYaw"); + break; + case "prevRotationYaw": + case "field_70126_B": + insnList = insertRotationHook("prevRotationYaw"); + break; + case "rotationPitch": + case "field_70125_A": + insnList = insertRotationHook("rotationPitch"); + break; + case "prevRotationPitch": + case "field_70127_C": + insnList = insertRotationHook("prevRotationPitch"); + break; + } + + if(insnList != null) { + method.instructions.insertBefore(insn, insnList); + method.instructions.remove(insn); + } + } + } /*else if (next.getOpcode() == DLOAD) { + VarInsnNode insn = (VarInsnNode) next; + + if(insn.getPrevious().getOpcode() == FCONST_0 && insn.getNext().getOpcode() == DNEG) { + method.instructions.insert(insn, insertDistanceHook()); + } + }*/ + } + } else if (methodName.equals("updateCameraAndRender") || methodName.equals("func_181560_a")) { + + Iterator<AbstractInsnNode> iterator = method.instructions.iterator(); + + while (iterator.hasNext()) { + AbstractInsnNode next = iterator.next(); + + if(next.getOpcode() == GETFIELD) { + FieldInsnNode insn = (FieldInsnNode)next; + + String ownerName = mapClassName(insn.owner); + String fieldName = mapFieldNameFromNode(insn); + + if(ownerName.equals("net/minecraft/client/Minecraft") && (fieldName.equals("inGameHasFocus") || fieldName.equals("field_71415_G")) && insn.desc.equals("Z") + && insn.getNext().getNext().getNext().getOpcode() == IFEQ) { + method.instructions.insertBefore(insn, insertMouseHook()); + method.instructions.remove(insn); + } + } + } + } + //Poggers Ultra FPS Praseodymium mode. + /* else if (methodName.equals("renderWorldPass") || methodName.equals("func_175068_a")) { + + method.instructions.insert(method.instructions.getFirst(), new InsnNode(RETURN)); + }*/ + } + } + + private InsnList insertRotationHook(String field) { + InsnList list = new InsnList(); + + list.add(new MethodInsnNode(INVOKESTATIC, HOOK_CLASS, field + "Hook", "(Lnet/minecraft/entity/Entity;)F", false)); + + return list; + } + + private InsnList insertMouseHook() { + InsnList list = new InsnList(); + + list.add(new MethodInsnNode(INVOKESTATIC, HOOK_CLASS, "mouseHook", "(Lnet/minecraft/client/Minecraft;)Z", false)); + + return list; + } + + private InsnList insertDistanceHook() { + InsnList list = new InsnList(); + + list.add(new MethodInsnNode(INVOKESTATIC, HOOK_CLASS, "distanceHook", "(D)D", false)); + + return list; + } +} diff --git a/src/main/java/me/djtheredstoner/perspectivemod/asm/transformers/MinecraftTransformer.java b/src/main/java/me/djtheredstoner/perspectivemod/asm/transformers/MinecraftTransformer.java new file mode 100644 index 0000000..ca1874b --- /dev/null +++ b/src/main/java/me/djtheredstoner/perspectivemod/asm/transformers/MinecraftTransformer.java @@ -0,0 +1,57 @@ +package me.djtheredstoner.perspectivemod.asm.transformers; + +import me.djtheredstoner.perspectivemod.asm.ITransformer; +import org.objectweb.asm.tree.*; + +import java.util.Iterator; + +import static org.objectweb.asm.Opcodes.*; + +/** + * @see net.minecraft.client.Minecraft + */ +public class MinecraftTransformer implements ITransformer { + + private static final String HOOK_CLASS = "me/djtheredstoner/perspectivemod/asm/hooks/MinecraftHook"; + + @Override + public String[] getClassName() { + return new String[]{"net.minecraft.client.Minecraft"}; + } + + @Override + public void transform(ClassNode classNode, String name) { + for (MethodNode method : classNode.methods) { + String methodName = mapMethodName(classNode, method); + + if (methodName.equals("runTick") || methodName.equals("func_71407_l")) { + Iterator<AbstractInsnNode> iterator = method.instructions.iterator(); + + while (iterator.hasNext()) { + AbstractInsnNode next = iterator.next(); + + if (next.getOpcode() == PUTFIELD) { + FieldInsnNode insn = (FieldInsnNode) next; + + String ownerName = mapClassName(insn.owner); + String fieldName = mapFieldNameFromNode(insn); + + if (ownerName.equals("net/minecraft/client/settings/GameSettings") && + (fieldName.equals("thirdPersonView") || fieldName.equals("field_74320_O")) && insn.desc.equals("I")) { + method.instructions.insertBefore(insn, insertThirdPersonHook()); + method.instructions.remove(insn); + } + } + } + } + } + } + + public InsnList insertThirdPersonHook() { + InsnList list = new InsnList(); + + list.add(new MethodInsnNode(INVOKESTATIC, HOOK_CLASS, "thirdPersonHook", "(Lnet/minecraft/client/settings/GameSettings;I)V", false)); + + return list; + } +} diff --git a/src/main/java/me/djtheredstoner/perspectivemod/asm/transformers/RenderManagerTransformer.java b/src/main/java/me/djtheredstoner/perspectivemod/asm/transformers/RenderManagerTransformer.java new file mode 100644 index 0000000..e41b81a --- /dev/null +++ b/src/main/java/me/djtheredstoner/perspectivemod/asm/transformers/RenderManagerTransformer.java @@ -0,0 +1,71 @@ +package me.djtheredstoner.perspectivemod.asm.transformers; + +import me.djtheredstoner.perspectivemod.asm.ITransformer; +import org.objectweb.asm.tree.*; + +import java.util.Iterator; + +import static org.objectweb.asm.Opcodes.*; + +/** + * @see net.minecraft.client.renderer.entity.RenderManager + */ +public class RenderManagerTransformer implements ITransformer { + private static final String HOOK_CLASS = "me/djtheredstoner/perspectivemod/asm/hooks/RenderManagerHook"; + + @Override + public String[] getClassName() { + return new String[]{"net.minecraft.client.renderer.entity.RenderManager"}; + } + + @Override + public void transform(ClassNode classNode, String name) { + for (MethodNode method : classNode.methods) { + String methodName = mapMethodName(classNode, method); + + if (methodName.equals("cacheActiveRenderInfo") || methodName.equals("func_180597_a")) { + Iterator<AbstractInsnNode> iterator = method.instructions.iterator(); + + while (iterator.hasNext()) { + AbstractInsnNode next = iterator.next(); + + if (next.getOpcode() == PUTFIELD) { + FieldInsnNode insn = (FieldInsnNode)next; + + String ownerName = mapClassName(insn.owner); + String fieldName = mapFieldNameFromNode(insn); + + if (ownerName.equals("net/minecraft/client/renderer/entity/RenderManager") && insn.desc.equals("F")) { + + InsnList insnList = null; + + switch (fieldName) { + case "playerViewX": + case "field_78732_j": + insnList = insertRotationHook("playerViewX"); + break; + case "playerViewY": + case "field_78735_i": + insnList = insertRotationHook("playerViewY"); + break; + } + + if(insnList != null) { + method.instructions.insertBefore(insn, insnList); + method.instructions.remove(insn); + } + } + } + } + } + } + } + + public InsnList insertRotationHook(String field) { + InsnList list = new InsnList(); + + list.add(new MethodInsnNode(INVOKESTATIC, HOOK_CLASS, field + "Hook", "(Lnet/minecraft/client/renderer/entity/RenderManager;F)V", false)); + + return list; + } +} diff --git a/src/main/java/me/djtheredstoner/perspectivemod/commands/PerspectiveModCommand.java b/src/main/java/me/djtheredstoner/perspectivemod/commands/PerspectiveModCommand.java new file mode 100644 index 0000000..00b0d27 --- /dev/null +++ b/src/main/java/me/djtheredstoner/perspectivemod/commands/PerspectiveModCommand.java @@ -0,0 +1,19 @@ +package me.djtheredstoner.perspectivemod.commands; + +import gg.essential.api.EssentialAPI; +import gg.essential.api.commands.Command; +import gg.essential.api.commands.DefaultHandler; +import me.djtheredstoner.perspectivemod.PerspectiveMod; + +public class PerspectiveModCommand extends Command { + + public PerspectiveModCommand(String name) { + super(name); + } + + @DefaultHandler + public void handle() { + EssentialAPI.getGuiUtil().openScreen(PerspectiveMod.instance.config.gui()); + } + +} diff --git a/src/main/java/me/djtheredstoner/perspectivemod/config/PerspectiveModConfig.java b/src/main/java/me/djtheredstoner/perspectivemod/config/PerspectiveModConfig.java new file mode 100644 index 0000000..dd10623 --- /dev/null +++ b/src/main/java/me/djtheredstoner/perspectivemod/config/PerspectiveModConfig.java @@ -0,0 +1,42 @@ +package me.djtheredstoner.perspectivemod.config; + +import gg.essential.vigilance.Vigilant; +import gg.essential.vigilance.data.Property; +import gg.essential.vigilance.data.PropertyType; + +import java.io.File; + +public class PerspectiveModConfig extends Vigilant { + + @Property( + type = PropertyType.SWITCH, + name = "Perspective Mod", + category = "General", + subcategory = "General", + description = "Toggle Perspective Mod entirely." + ) + public boolean modEnabled = true; + + @Property( + type = PropertyType.SWITCH, + name = "Hold Mode", + category = "General", + subcategory = "General", + description = "Return to normal perspective after releasing keybind." + ) + public boolean holdMode = true; + + @Property( + type = PropertyType.SWITCH, + name = "Invert Pitch", + category = "General", + subcategory = "General", + description = "Invert the pitch while in perspective (same as blc/lunar)." + ) + public boolean invertPitch = false; + + public PerspectiveModConfig() { + super(new File("./config/perspectivemodv4.toml")); + initialize(); + } +} diff --git a/src/main/java/me/djtheredstoner/perspectivemod/forge/PerspectiveModTweaker.java b/src/main/java/me/djtheredstoner/perspectivemod/forge/PerspectiveModTweaker.java new file mode 100644 index 0000000..695f7a2 --- /dev/null +++ b/src/main/java/me/djtheredstoner/perspectivemod/forge/PerspectiveModTweaker.java @@ -0,0 +1,77 @@ +package me.djtheredstoner.perspectivemod.forge; + +import me.djtheredstoner.perspectivemod.asm.ClassTransformer; +import net.minecraft.launchwrapper.Launch; +import net.minecraftforge.common.ForgeVersion; +import net.minecraftforge.fml.relauncher.IFMLLoadingPlugin; + +import javax.swing.*; +import java.io.File; +import java.lang.reflect.InvocationTargetException; +import java.lang.reflect.Method; +import java.util.Map; +import java.util.zip.ZipFile; + + +@IFMLLoadingPlugin.MCVersion(ForgeVersion.mcVersion) +public class PerspectiveModTweaker implements IFMLLoadingPlugin { + + public PerspectiveModTweaker() { + File mods = new File(Launch.minecraftHome, "mods"); + + if (!mods.exists()) { + mods.mkdirs(); // mods folder may not exist in dev yet + } + + File[] coreModList = mods.listFiles((dir, name) -> name.endsWith(".jar")); + for (File file : coreModList) { + try { + try (ZipFile zipFile = new ZipFile(file)) { + if (zipFile.getEntry("net/canelex/perspectivemod/PerspectiveMod.class") != null) { + halt("<html><p>Perspective Mod v4 is not compatible with Perspective Mod v3 by Canelex. Please remove Canelex's in order to launch the game.</p></html>"); + continue; + } + } + } catch (Exception e) { + e.printStackTrace(); + } + } + } + + private void halt(final String message) { + JOptionPane.showMessageDialog(null, message, "Launch Aborted", JOptionPane.ERROR_MESSAGE); + try { + final Class<?> aClass = Class.forName("java.lang.Shutdown"); + final Method exit = aClass.getDeclaredMethod("exit", int.class); + exit.setAccessible(true); + exit.invoke(null, 0); + } catch (ClassNotFoundException | NoSuchMethodException | IllegalAccessException | InvocationTargetException e) { + e.printStackTrace(); + } + } + + @Override + public String[] getASMTransformerClass() { + return new String[]{ClassTransformer.class.getName()}; + } + + @Override + public String getModContainerClass() { + return null; + } + + @Override + public String getSetupClass() { + return null; + } + + @Override + public void injectData(Map<String, Object> map) { + + } + + @Override + public String getAccessTransformerClass() { + return null; + } +} |