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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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