diff options
Diffstat (limited to 'src/featureClass/forgeEvents.js')
| -rw-r--r-- | src/featureClass/forgeEvents.js | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/src/featureClass/forgeEvents.js b/src/featureClass/forgeEvents.js new file mode 100644 index 0000000..fb723b1 --- /dev/null +++ b/src/featureClass/forgeEvents.js @@ -0,0 +1,99 @@ +importClass(net.minecraftforge.common.MinecraftForge) //i would have used the ct module but it is broken (line 78) (this is fixed verison) +importPackage(net.minecraftforge.fml.common.eventhandler) +importPackage(org.objectweb.asm) +importClass(java.lang.ClassLoader) +importClass(org.apache.commons.lang3.RandomStringUtils) +importClass(java.util.function.Consumer) +importClass(net.minecraftforge.fml.common.eventhandler.EventPriority) + +const L = s => `L${s};` +const LoadedInsts = [] + +function defineClassBytes(name, bytes) {//should support multymc? ty dawjaw https://canary.discord.com/channels/119493402902528000/688773480954855537/979959207124168744 + const classLoader = Packages.com.chattriggers.ctjs.CTJS.class.getClassLoader() + + let defClass; + ClassLoader.class.getDeclaredMethods().forEach(m => { + if (m.toString() === "protected final java.lang.Class java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) throws java.lang.ClassFormatError") { + defClass = m; + } + }) + + defClass.setAccessible(true) + + const n = new java.lang.String(name) + const o = new java.lang.Integer(0) + const s = new java.lang.Integer(bytes.length) + return defClass.invoke(classLoader, n, bytes, o, s) +} + +const registerForge = (e, priority = EventPriority.NORMAL, cb) => { + const cw = new ClassWriter(0) + + const event = Type.getType(e.class).internalName + const name = RandomStringUtils.randomAlphabetic(7) + + const consumer = Type.getType(Consumer.class).internalName + const mcForge = Type.getType(MinecraftForge.class).internalName + const eventBus = Type.getType(EventBus.class).internalName + const subscribeEvent = Type.getType(SubscribeEvent.class).internalName + const obj = Type.getType(java.lang.Object.class).internalName + + cw.visit(Opcodes.V1_8, Opcodes.ACC_PUBLIC, name, null, obj, null) + //cw.visitInnerClass("net/minecraftforge/event/entity/player/PlayerEvent$BreakSpeed","net/minecraftforge/event/entity/player/PlayerEvent","BreakSpeed",ACC_PUBLIC+ACC_STATIC); + { + cw.visitField(Opcodes.ACC_PRIVATE + Opcodes.ACC_FINAL, "callback", L(consumer), L(consumer + "<" + L(event) + ">"), null).visitEnd() + } + { + const con = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "(" + L(consumer) + ")V", "(" + L(consumer + "<" + L(event) + ">") + ")V", null) + con.visitCode() + con.visitVarInsn(Opcodes.ALOAD, 0) + con.visitMethodInsn(Opcodes.INVOKESPECIAL, obj, "<init>", "()V", false) + + con.visitVarInsn(Opcodes.ALOAD, 0) + con.visitVarInsn(Opcodes.ALOAD, 1) + con.visitFieldInsn(Opcodes.PUTFIELD, name, "callback", L(consumer)) + con.visitFieldInsn(Opcodes.GETSTATIC, mcForge, "EVENT_BUS", L(eventBus)) + con.visitVarInsn(Opcodes.ALOAD, 0) + con.visitMethodInsn(Opcodes.INVOKEVIRTUAL, eventBus, "register", "(" + L(obj) + ")V", false) + con.visitInsn(Opcodes.RETURN) + con.visitMaxs(2, 2) + con.visitEnd() + } + { + const mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "on", "(" + L(event) + ")V", null, null) + { + const av = mv.visitAnnotation(L(subscribeEvent), true) + av.visitEnum("priority", "Lnet/minecraftforge/fml/common/eventhandler/EventPriority;", priority.name()); + av.visitEnd() + } + mv.visitCode() + mv.visitVarInsn(Opcodes.ALOAD, 0) + mv.visitFieldInsn(Opcodes.GETFIELD, name, "callback", L(consumer)) + mv.visitVarInsn(Opcodes.ALOAD, 1) + mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, consumer, "accept", "(" + L(obj) + ")V", true) + mv.visitInsn(Opcodes.RETURN) + mv.visitMaxs(2, 2) + mv.visitEnd() + } + cw.visitEnd() + + const inst = defineClassBytes(name, cw.toByteArray()) + .getDeclaredConstructor(Consumer.class) + .newInstance(new java.util.function.Consumer({ + accept: function (t) { cb(t) } + })) + LoadedInsts.push(inst) + return inst; +} + +const unregisterForge = inst => { + MinecraftForge.EVENT_BUS.unregister(inst) +} + +register("gameUnload", () => { + LoadedInsts.forEach(unregisterForge) + LoadedInsts.length = 0 +}) + +export { registerForge, unregisterForge }
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