From aef074886b587745bd814fe965d55e7b4cf11a07 Mon Sep 17 00:00:00 2001 From: Linnea Gräf Date: Thu, 22 Feb 2024 22:05:15 +0100 Subject: Add event cancellation watcher --- build.gradle.kts | 1 + src/main/java/moe/nea/kowalski/KowalskiCommand.kt | 61 ++++++++++++++++++++++ .../nea/kowalski/init/EventClassTransformer.java | 47 +++++++++++++++++ .../moe/nea/kowalski/init/KowalskiTweaker.java | 29 ++++++++++ src/main/kotlin/moe/nea/kowalski/ExampleMod.kt | 22 -------- src/main/kotlin/moe/nea/kowalski/Kowalski.kt | 51 ++++++++++++++++++ .../moe/nea/kowalski/mixin/MixinGuiMainMenu.java | 16 ------ src/main/resources/assets/test/test.txt | 3 -- 8 files changed, 189 insertions(+), 41 deletions(-) create mode 100644 src/main/java/moe/nea/kowalski/KowalskiCommand.kt create mode 100644 src/main/java/moe/nea/kowalski/init/EventClassTransformer.java create mode 100644 src/main/java/moe/nea/kowalski/init/KowalskiTweaker.java delete mode 100644 src/main/kotlin/moe/nea/kowalski/ExampleMod.kt create mode 100644 src/main/kotlin/moe/nea/kowalski/Kowalski.kt delete mode 100644 src/main/kotlin/moe/nea/kowalski/mixin/MixinGuiMainMenu.java delete mode 100644 src/main/resources/assets/test/test.txt diff --git a/build.gradle.kts b/build.gradle.kts index 98f7efa..018de40 100644 --- a/build.gradle.kts +++ b/build.gradle.kts @@ -31,6 +31,7 @@ loom { property("mixin.debug", "true") property("asmhelper.verbose", "true") arg("--tweakClass", "org.spongepowered.asm.launch.MixinTweaker") + arg("--tweakClass", "moe.nea.kowalski.init.KowalskiTweaker") } } runConfigs { diff --git a/src/main/java/moe/nea/kowalski/KowalskiCommand.kt b/src/main/java/moe/nea/kowalski/KowalskiCommand.kt new file mode 100644 index 0000000..b2a975a --- /dev/null +++ b/src/main/java/moe/nea/kowalski/KowalskiCommand.kt @@ -0,0 +1,61 @@ +package moe.nea.kowalski + +import net.minecraft.client.Minecraft +import net.minecraft.command.CommandBase +import net.minecraft.command.ICommandSender +import net.minecraft.util.BlockPos +import net.minecraft.util.ChatComponentText + +object KowalskiCommand : CommandBase() { + override fun getCommandName(): String { + return "kowalski" + } + + override fun canCommandSenderUseCommand(sender: ICommandSender?): Boolean { + return true + } + + override fun getCommandUsage(sender: ICommandSender?): String { + return "" + } + + + override fun addTabCompletionOptions( + sender: ICommandSender?, + args: Array, + pos: BlockPos? + ): List { + return when (args.size) { + 1 -> getListOfStringsMatchingLastWord(args, "whocancels") + 2 -> when (args[0]) { + "whocancels" -> getListOfStringsMatchingLastWord(args, "ClientChatReceivedEvent") + else -> emptyList() + } + else -> emptyList() + } + } + + fun chat(text: String) { + Minecraft.getMinecraft().ingameGUI.chatGUI.printChatMessage(ChatComponentText("§e[§fKW§e]§r $text")) + } + + override fun processCommand(sender: ICommandSender, args: Array) { + when (args.firstOrNull()) { + "whocancels" -> { + if (args.size != 2) { + chat("§cPlease provide an event to listen to: §bwhocancels ") + return + } + val eventName = args[1] + if (eventName in Kowalski.watchedEvents) { + Kowalski.watchedEvents.remove(eventName) + chat("§fRemoved §c$eventName §ffrom watched events") + } else { + Kowalski.watchedEvents.add(eventName) + chat("§fAdded §b$eventName §fto watched events") + } + } + } + } + +} diff --git a/src/main/java/moe/nea/kowalski/init/EventClassTransformer.java b/src/main/java/moe/nea/kowalski/init/EventClassTransformer.java new file mode 100644 index 0000000..a80a5b5 --- /dev/null +++ b/src/main/java/moe/nea/kowalski/init/EventClassTransformer.java @@ -0,0 +1,47 @@ +package moe.nea.kowalski.init; + +import net.minecraft.launchwrapper.IClassTransformer; +import org.objectweb.asm.ClassReader; +import org.objectweb.asm.ClassWriter; +import org.objectweb.asm.Opcodes; +import org.objectweb.asm.tree.*; + +import java.util.ListIterator; + +public class EventClassTransformer implements IClassTransformer { + @Override + public byte[] transform(String name, String transformedName, byte[] basicClass) { + if (!"net.minecraftforge.fml.common.eventhandler.Event".equals(name)) + return basicClass; + ClassNode classNode = new ClassNode(); + ClassReader classReader = new ClassReader(basicClass); + classReader.accept(classNode, 0); + for (MethodNode method : classNode.methods) { + if (method.name.equals("setCanceled")) { + transformCancelMethod(method); + } + } + ClassWriter writer = new ClassWriter(0); + classNode.accept(writer); + return writer.toByteArray(); + } + + private void transformCancelMethod(MethodNode method) { + ListIterator iterator = + method.instructions.iterator(); + while (iterator.hasNext()) { + AbstractInsnNode insn = iterator.next(); + if (insn.getOpcode() != Opcodes.PUTFIELD) { + continue; + } + method.instructions.insert(insn, buildCallKowalski()); + } + } + + private InsnList buildCallKowalski() { + InsnList insnList = new InsnList(); + insnList.add(new VarInsnNode(Opcodes.ALOAD, 0)); + insnList.add(new MethodInsnNode(Opcodes.INVOKESTATIC, "moe/nea/kowalski/Kowalski", "eventIsBeingCancelled", "(Lnet/minecraftforge/fml/common/eventhandler/Event;)V", false)); + return insnList; + } +} diff --git a/src/main/java/moe/nea/kowalski/init/KowalskiTweaker.java b/src/main/java/moe/nea/kowalski/init/KowalskiTweaker.java new file mode 100644 index 0000000..4cb836c --- /dev/null +++ b/src/main/java/moe/nea/kowalski/init/KowalskiTweaker.java @@ -0,0 +1,29 @@ +package moe.nea.kowalski.init; + +import net.minecraft.launchwrapper.ITweaker; +import net.minecraft.launchwrapper.LaunchClassLoader; + +import java.io.File; +import java.util.List; + +public class KowalskiTweaker implements ITweaker { + @Override + public void acceptOptions(List args, File gameDir, File assetsDir, String profile) { + + } + + @Override + public void injectIntoClassLoader(LaunchClassLoader classLoader) { +classLoader.registerTransformer("moe.nea.kowalski.init.EventClassTransformer"); + } + + @Override + public String getLaunchTarget() { + return null; + } + + @Override + public String[] getLaunchArguments() { + return new String[0]; + } +} diff --git a/src/main/kotlin/moe/nea/kowalski/ExampleMod.kt b/src/main/kotlin/moe/nea/kowalski/ExampleMod.kt deleted file mode 100644 index a622a6c..0000000 --- a/src/main/kotlin/moe/nea/kowalski/ExampleMod.kt +++ /dev/null @@ -1,22 +0,0 @@ -package moe.nea.kowalski - -import net.minecraft.client.Minecraft -import net.minecraft.init.Blocks -import net.minecraftforge.fml.common.Mod -import net.minecraftforge.fml.common.event.FMLInitializationEvent - -@Mod(modid = "kowalski", useMetadata = true) -class ExampleMod { - @Mod.EventHandler - fun init(event: FMLInitializationEvent) { - try { - val resource: net.minecraft.client.resources.IResource = Minecraft.getMinecraft().getResourceManager() - .getResource(net.minecraft.util.ResourceLocation("test:test.txt")) - org.apache.commons.io.IOUtils.copy(resource.getInputStream(), java.lang.System.out) - } catch (e: java.io.IOException) { - throw java.lang.RuntimeException(e) - } - - println("Dirt: ${Blocks.dirt.unlocalizedName}") - } -} diff --git a/src/main/kotlin/moe/nea/kowalski/Kowalski.kt b/src/main/kotlin/moe/nea/kowalski/Kowalski.kt new file mode 100644 index 0000000..2bede19 --- /dev/null +++ b/src/main/kotlin/moe/nea/kowalski/Kowalski.kt @@ -0,0 +1,51 @@ +package moe.nea.kowalski + +import net.minecraftforge.client.ClientCommandHandler +import net.minecraftforge.client.event.ClientChatReceivedEvent +import net.minecraftforge.common.MinecraftForge +import net.minecraftforge.fml.common.Mod +import net.minecraftforge.fml.common.event.FMLInitializationEvent +import net.minecraftforge.fml.common.eventhandler.Event +import net.minecraftforge.fml.common.eventhandler.SubscribeEvent + +@Mod(modid = "kowalski", useMetadata = true) +class Kowalski { + + companion object { + val watchedEvents = mutableSetOf() + + @JvmStatic + fun eventIsBeingCancelled(event: Event) { + if (event.javaClass.simpleName !in watchedEvents) { + return + } + val interestingStack = Thread.currentThread() + .stackTrace + .dropWhile { it.className.startsWith("java.lang.") } + .dropWhile { it.className.startsWith("moe.nea.kowalski.") } + .drop(1) + KowalskiCommand.chat( + "§c§k!!!§c RED ALERT §k!!!§c\n" + + "AN EVENT HAS BEEN CANCELLED\n" + + "§c=================\n" + + "§e${interestingStack.joinToString("\n§e")}\n" + + "§c=================" + ) + } + } + + + @SubscribeEvent + fun cancelMessages(event: ClientChatReceivedEvent) { + if (event.message.unformattedText.contains("verboten")) + event.isCanceled = true + } + + @Mod.EventHandler + fun init(event: FMLInitializationEvent) { + ClientCommandHandler.instance.registerCommand(KowalskiCommand) + MinecraftForge.EVENT_BUS.register(this) + } + + +} diff --git a/src/main/kotlin/moe/nea/kowalski/mixin/MixinGuiMainMenu.java b/src/main/kotlin/moe/nea/kowalski/mixin/MixinGuiMainMenu.java deleted file mode 100644 index 4ddc1b4..0000000 --- a/src/main/kotlin/moe/nea/kowalski/mixin/MixinGuiMainMenu.java +++ /dev/null @@ -1,16 +0,0 @@ -package moe.nea.kowalski.mixin; - -import net.minecraft.client.gui.GuiMainMenu; -import org.spongepowered.asm.mixin.Mixin; -import org.spongepowered.asm.mixin.injection.At; -import org.spongepowered.asm.mixin.injection.Inject; -import org.spongepowered.asm.mixin.injection.callback.CallbackInfo; - -@Mixin(GuiMainMenu.class) -public class MixinGuiMainMenu { - - @Inject(method = "initGui", at = @At("HEAD")) - public void onInitGui(CallbackInfo ci) { - System.out.println("Hello from Main Menu!"); - } -} diff --git a/src/main/resources/assets/test/test.txt b/src/main/resources/assets/test/test.txt deleted file mode 100644 index ea839e2..0000000 --- a/src/main/resources/assets/test/test.txt +++ /dev/null @@ -1,3 +0,0 @@ -test -from resource pack - -- cgit