Initial 1.14 release

9 files changed, 362 insertions, 0 deletions

diff --git a/src/main/kotlin/thedarkcolour/kotlinforforge/AutoKotlinEventBusSubscriber.kt b/src/main/kotlin/thedarkcolour/kotlinforforge/AutoKotlinEventBusSubscriber.kt
new file mode 100644
index 0000000..b77a567
--- /dev/null
+++ b/src/main/kotlin/thedarkcolour/kotlinforforge/AutoKotlinEventBusSubscriber.kt
@@ -0,0 +1,90 @@
+package thedarkcolour.kotlinforforge
+
+import net.minecraftforge.api.distmarker.Dist
+import net.minecraftforge.fml.Logging
+import net.minecraftforge.fml.ModContainer
+import net.minecraftforge.fml.common.Mod
+import net.minecraftforge.fml.loading.FMLEnvironment
+import net.minecraftforge.fml.loading.moddiscovery.ModAnnotation
+import net.minecraftforge.forgespi.language.ModFileScanData
+import org.objectweb.asm.Type
+import thedarkcolour.kotlinforforge.KotlinForForge.logger
+import java.util.*
+import java.util.stream.Collectors
+import kotlin.reflect.full.companionObjectInstance
+
+/**
+ * Handles [net.minecraftforge.fml.common.Mod.EventBusSubscriber]
+ */
+@Suppress("unused")
+object AutoKotlinEventBusSubscriber {
+    private val EVENT_BUS_SUBSCRIBER: Type = Type.getType(Mod.EventBusSubscriber::class.java)
+
+    /**
+     * Registers Kotlin objects that are annotated with [Mod.EventBusSubscriber]
+     * This allows you to declare an object that subscribes to the event bus
+     * without making all the [net.minecraftforge.eventbus.api.SubscribeEvent] annotated with [JvmStatic]
+     *
+     * Example Usage:
+     *
+     *   @Mod.EventBusSubscriber(bus = Mod.EventBusSubscriber.Bus.MOD)
+     *   public object ExampleSubscriber {
+     *      @SubscribeEvent
+     *      public fun onItemRegistry(event: RegistryEvent.Register<Item>) {
+     *         println("Look! We're in items :)")
+     *      }
+     *   }
+     *
+     * This also works with companion objects.
+     * You must define the [net.minecraftforge.eventbus.api.SubscribeEvent] methods inside the companion object.
+     * Example Usage:
+     *
+     *   @Mod.EventBusSubscriber(bus = Mod.EventBusSubscriber.Bus.MOD)
+     *   public class ExampleSubscriberClass {
+     *
+     *      companion object ExampleSubscriberCompanion {
+     *         @SubscribeEvent
+     *         public fun onItemRegistry(event: RegistryEvent.Register<Item>) {
+     *            println("Look! We're in items :)")
+     *         }
+     *      }
+     *   }
+     */
+    @Suppress("UNCHECKED_CAST", "unused")
+    fun inject(mod: ModContainer, scanData: ModFileScanData, classLoader: ClassLoader) {
+        logger.debug(Logging.LOADING, "Attempting to inject @EventBusSubscriber kotlin objects in to the event bus for {}", mod.modId)
+        val data: ArrayList<ModFileScanData.AnnotationData> = scanData.annotations.stream()
+                .filter { annotationData ->
+                    EVENT_BUS_SUBSCRIBER == annotationData.annotationType
+                }
+                .collect(Collectors.toList()) as ArrayList<ModFileScanData.AnnotationData>
+        data.forEach { annotationData ->
+            val sidesValue: List<ModAnnotation.EnumHolder> = annotationData.annotationData.getOrDefault("value", listOf(ModAnnotation.EnumHolder(null, "CLIENT"), ModAnnotation.EnumHolder(null, "DEDICATED_SERVER"))) as List<ModAnnotation.EnumHolder>
+            val sides: EnumSet<Dist> = sidesValue.stream().map { eh -> Dist.valueOf(eh.value) }
+                    .collect(Collectors.toCollection { EnumSet.noneOf(Dist::class.java) })
+            val modid = annotationData.annotationData.getOrDefault("modid", mod.modId)
+            val busTargetHolder: ModAnnotation.EnumHolder = annotationData.annotationData.getOrDefault("bus", ModAnnotation.EnumHolder(null, "FORGE")) as ModAnnotation.EnumHolder
+            val busTarget = Mod.EventBusSubscriber.Bus.valueOf(busTargetHolder.value)
+            val clazz = Class.forName(annotationData.classType.className, true, classLoader)
+            val ktClass = clazz.kotlin
+            val ktObject = ktClass.objectInstance
+            if (ktObject != null && mod.modId == modid && sides.contains(FMLEnvironment.dist)) {
+                try {
+                    logger.debug(Logging.LOADING, "Auto-subscribing kotlin object {} to {}", annotationData.classType.className, busTarget)
+                    busTarget.bus().get().register(ktObject)
+                } catch (e: Throwable) {
+                    logger.fatal(Logging.LOADING, "Failed to load mod class {} for @EventBusSubscriber annotation", annotationData.classType, e)
+                    throw RuntimeException(e)
+                }
+            } else if (ktClass.companionObjectInstance != null)  {
+                try {
+                    logger.debug(Logging.LOADING, "Auto-subscribing kotlin companion object from {} to {}", ktClass.simpleName, busTarget)
+                    busTarget.bus().get().register(ktClass.companionObjectInstance)
+                } catch (e: Throwable) {
+                    logger.fatal(Logging.LOADING, "Failed to load kotlin companion object {} for @EventBusSubscriber annotation", annotationData.classType, e)
+                    throw RuntimeException(e)
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/thedarkcolour/kotlinforforge/KotlinForForge.kt b/src/main/kotlin/thedarkcolour/kotlinforforge/KotlinForForge.kt
new file mode 100644
index 0000000..e697f10
--- /dev/null
+++ b/src/main/kotlin/thedarkcolour/kotlinforforge/KotlinForForge.kt
@@ -0,0 +1,13 @@
+package thedarkcolour.kotlinforforge
+
+import net.minecraftforge.fml.common.Mod
+import org.apache.logging.log4j.LogManager
+import org.apache.logging.log4j.Logger
+
+/**
+ * Set 'modLoader' in mods.toml to "kotlinforforge".
+ */
+@Mod("kotlinforforge")
+object KotlinForForge {
+    internal val logger: Logger = LogManager.getLogger()
+}
\ No newline at end of file
diff --git a/src/main/kotlin/thedarkcolour/kotlinforforge/KotlinLanguageProvider.kt b/src/main/kotlin/thedarkcolour/kotlinforforge/KotlinLanguageProvider.kt
new file mode 100644
index 0000000..e860497
--- /dev/null
+++ b/src/main/kotlin/thedarkcolour/kotlinforforge/KotlinLanguageProvider.kt
@@ -0,0 +1,42 @@
+package thedarkcolour.kotlinforforge
+
+import net.minecraftforge.fml.Logging
+import net.minecraftforge.fml.javafmlmod.FMLJavaModLanguageProvider
+import net.minecraftforge.forgespi.language.ILifecycleEvent
+import net.minecraftforge.forgespi.language.IModInfo
+import net.minecraftforge.forgespi.language.IModLanguageProvider
+import net.minecraftforge.forgespi.language.ModFileScanData
+import java.util.function.BinaryOperator
+import java.util.function.Consumer
+import java.util.function.Function
+import java.util.function.Supplier
+import java.util.stream.Collectors
+
+class KotlinLanguageProvider : FMLJavaModLanguageProvider() {
+    override fun getFileVisitor(): Consumer<ModFileScanData> {
+        return Consumer { scanResult ->
+            val target = scanResult.annotations.stream()
+                    .filter {data -> data.annotationType == MODANNOTATION }
+                    .peek { data -> KotlinForForge.logger.debug(Logging.SCAN, "Found @Mod class {} with id {}", data.classType.className, data.annotationData["value"]) }
+                    .map { data -> KotlinModTarget(data.classType.className, data.annotationData["value"] as String) }
+                    .collect(Collectors.toMap<KotlinModTarget, String, KotlinModTarget>(Function { target: KotlinModTarget -> return@Function target.modId }, Function {return@Function it}, BinaryOperator { a, _ -> a }))
+            scanResult.addLanguageLoader(target)
+        }
+    }
+
+    override fun <R : ILifecycleEvent<R>?> consumeLifecycleEvent(consumeEvent: Supplier<R>?) {}
+
+    override fun name(): String {
+        return "kotlinforforge"
+    }
+
+    internal class KotlinModTarget internal constructor(private val className: String, val modId: String) : IModLanguageProvider.IModLanguageLoader {
+        @Suppress("UNCHECKED_CAST")
+        override fun <T> loadMod(info: IModInfo, modClassLoader: ClassLoader, modFileScanResults: ModFileScanData): T {
+            val ktContainer = Class.forName("thedarkcolour.kotlinforforge.KotlinModContainer", true, Thread.currentThread().contextClassLoader)
+            KotlinForForge.logger.debug(Logging.LOADING, "Loading KotlinModContainer from classloader {} - got {}", Thread.currentThread().contextClassLoader, ktContainer.classLoader)
+            val constructor = ktContainer.getConstructor(IModInfo::class.java, String::class.java, ClassLoader::class.java, ModFileScanData::class.java)!!
+            return constructor.newInstance(info, className, modClassLoader, modFileScanResults) as T
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/thedarkcolour/kotlinforforge/KotlinModContainer.kt b/src/main/kotlin/thedarkcolour/kotlinforforge/KotlinModContainer.kt
new file mode 100644
index 0000000..26a65ea
--- /dev/null
+++ b/src/main/kotlin/thedarkcolour/kotlinforforge/KotlinModContainer.kt
@@ -0,0 +1,103 @@
+package thedarkcolour.kotlinforforge
+
+import net.minecraftforge.eventbus.EventBusErrorMessage
+import net.minecraftforge.eventbus.api.BusBuilder
+import net.minecraftforge.eventbus.api.Event
+import net.minecraftforge.eventbus.api.IEventBus
+import net.minecraftforge.eventbus.api.IEventListener
+import net.minecraftforge.fml.*
+import net.minecraftforge.forgespi.language.IModInfo
+import net.minecraftforge.forgespi.language.ModFileScanData
+import org.apache.logging.log4j.LogManager
+import java.util.*
+import java.util.function.Consumer
+import java.util.function.Supplier
+
+@Suppress("UNUSED_PARAMETER")
+class KotlinModContainer(info: IModInfo, className: String, loader: ClassLoader, private val scanData: ModFileScanData) : ModContainer(info) {
+    private lateinit var modInstance: Any
+    private val modClass: Class<*>
+    val eventBus: IEventBus
+
+    // Use a separate logger because KotlinForForge.logger isn't initialized yet
+    private val logger = LogManager.getLogger()
+
+    init {
+        logger.debug(Logging.LOADING, "Creating KotlinModContainer instance for {} with classLoader {} & {}", className, loader, javaClass.classLoader)
+        triggerMap[ModLoadingStage.CONSTRUCT] = dummy().andThen { beforeEvent(it) }.andThen { constructMod(it) }.andThen{ afterEvent(it) }
+        triggerMap[ModLoadingStage.CREATE_REGISTRIES] = dummy().andThen { beforeEvent(it) }.andThen { fireEvent(it) }.andThen{ afterEvent(it) }
+        triggerMap[ModLoadingStage.LOAD_REGISTRIES] = dummy().andThen { beforeEvent(it) }.andThen { fireEvent(it) }.andThen{ afterEvent(it) }
+        triggerMap[ModLoadingStage.COMMON_SETUP] = dummy().andThen { beforeEvent(it) }.andThen { preinitMod(it) }.andThen{ fireEvent(it) }.andThen { this.afterEvent(it) }
+        triggerMap[ModLoadingStage.SIDED_SETUP] = dummy().andThen { beforeEvent(it)}.andThen { fireEvent(it) }.andThen { afterEvent(it) }
+        triggerMap[ModLoadingStage.ENQUEUE_IMC] = dummy().andThen { beforeEvent(it)}.andThen { initMod(it) }.andThen{ fireEvent(it) }.andThen{ this.afterEvent(it) }
+        triggerMap[ModLoadingStage.PROCESS_IMC] = dummy().andThen { beforeEvent(it) }.andThen { fireEvent(it) }.andThen{ afterEvent(it) }
+        triggerMap[ModLoadingStage.COMPLETE] = dummy().andThen { beforeEvent(it) }.andThen { completeLoading(it) }.andThen{ fireEvent(it) }.andThen { this.afterEvent(it) }
+        triggerMap[ModLoadingStage.GATHERDATA] = dummy().andThen { beforeEvent(it) }.andThen { fireEvent(it) }.andThen{ afterEvent(it) }
+        eventBus = BusBuilder.builder().setExceptionHandler{ bus, event, listeners, index, throwable -> onEventFailed(bus, event, listeners, index, throwable) }.setTrackPhases(false).build()
+        configHandler = Optional.of(Consumer {event -> eventBus.post(event)})
+        val ctx = KotlinModLoadingContext(this)
+        contextExtension = Supplier { return@Supplier ctx}
+        try {
+            modClass = Class.forName(className, true, loader)
+            logger.debug(Logging.LOADING, "Loaded kotlin modclass {} with {}", modClass.name, modClass.classLoader)
+        } catch (e: Throwable) {
+            logger.error(Logging.LOADING, "Failed to load kotlin class {}", className, e)
+            throw ModLoadingException(info, ModLoadingStage.CONSTRUCT, "fml.modloading.failedtoloadmodclass", e)
+        }
+    }
+
+    private fun completeLoading(lifecycleEvent: LifecycleEventProvider.LifecycleEvent) {}
+    private fun initMod(lifecycleEvent: LifecycleEventProvider.LifecycleEvent) {}
+    private fun dummy(): Consumer<LifecycleEventProvider.LifecycleEvent> = Consumer {}
+    private fun onEventFailed(iEventBus: IEventBus, event: Event, iEventListeners: Array<IEventListener>, i: Int, throwable: Throwable) = logger.error(EventBusErrorMessage(event, i, iEventListeners, throwable))
+    private fun beforeEvent(lifecycleEvent: LifecycleEventProvider.LifecycleEvent) {}
+
+    private fun fireEvent(lifecycleEvent: LifecycleEventProvider.LifecycleEvent) {
+        val event = lifecycleEvent.getOrBuildEvent(this)
+        logger.debug(Logging.LOADING, "Firing event for modid {} : {}", this.getModId(), event)
+        try {
+
+        } catch (e: Throwable) {
+            logger.error(Logging.LOADING,"An error occurred while dispatching event {} to {}", lifecycleEvent.fromStage(), modId)
+            throw ModLoadingException(modInfo, lifecycleEvent.fromStage(), "fml.modloading.errorduringevent", e)
+        }
+    }
+
+    private fun afterEvent(lifecycleEvent: LifecycleEventProvider.LifecycleEvent) {
+        if (currentState == ModLoadingStage.ERROR) {
+            logger.error(Logging.LOADING, "An error occurred while dispatching event {} to {}", lifecycleEvent.fromStage(), modId)
+        }
+    }
+
+    private fun preinitMod(lifecycleEvent: LifecycleEventProvider.LifecycleEvent) {}
+
+    private fun constructMod(lifecycleEvent: LifecycleEventProvider.LifecycleEvent) {
+        try {
+            logger.debug(Logging.LOADING, "Loading mod instance {} of type {}", getModId(), modClass.name)
+            modInstance = modClass.kotlin.objectInstance ?: modClass.newInstance()
+            logger.debug(Logging.LOADING, "Loaded mod instance {} of type {}", getModId(), modClass.name)
+        } catch (e: Throwable) {
+            logger.error(Logging.LOADING, "Failed to create mod instance. ModID: {}, class {}", getModId(), modClass.name, e)
+            throw ModLoadingException(modInfo, lifecycleEvent.fromStage(), "fml.modloading.failedtoloadmod", e, modClass)
+        }
+
+        try {
+            logger.debug(Logging.LOADING, "Injecting Automatic event subscribers for {}", getModId())
+            // Inject into object EventBusSubscribers
+            AutoKotlinEventBusSubscriber.inject(this, scanData, modClass.classLoader)
+            logger.debug(Logging.LOADING, "Completed Automatic event subscribers for {}", getModId())
+        } catch (e: Throwable) {
+            logger.error(Logging.LOADING, "Failed to register automatic subscribers. ModID: {}, class {}", getModId(), modClass.name, e)
+            throw ModLoadingException(modInfo, lifecycleEvent.fromStage(), "fml.modloading.failedtoloadmod", e, modClass)
+        }
+
+    }
+
+    override fun getMod(): Any {
+        return modInstance
+    }
+
+    override fun matches(mod: Any?): Boolean {
+        return mod == modInstance
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/thedarkcolour/kotlinforforge/KotlinModLoadingContext.kt b/src/main/kotlin/thedarkcolour/kotlinforforge/KotlinModLoadingContext.kt
new file mode 100644
index 0000000..4b7edc0
--- /dev/null
+++ b/src/main/kotlin/thedarkcolour/kotlinforforge/KotlinModLoadingContext.kt
@@ -0,0 +1,17 @@
+package thedarkcolour.kotlinforforge
+
+import net.minecraftforge.eventbus.api.IEventBus
+import net.minecraftforge.fml.ModLoadingContext
+
+class KotlinModLoadingContext internal constructor(private val container: KotlinModContainer) {
+    fun getEventBus(): IEventBus {
+        return container.eventBus
+    }
+
+    companion object {
+        @JvmStatic
+        fun get() {
+            return ModLoadingContext.get().extension()
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/main/resources/META-INF/mods.toml b/src/main/resources/META-INF/mods.toml
new file mode 100644
index 0000000..ff8cd97
--- /dev/null
+++ b/src/main/resources/META-INF/mods.toml
@@ -0,0 +1,39 @@
+modLoader="kotlinforforge" # IModLanguageProvider
+loaderVersion="[25,)" # IModLanguageProvider version
+
+issueTrackerURL="https://github.com/thedarkcolour/Future-MC/issues" # Issues page
+
+
+#displayURL="https://minecraft.curseforge.com/projects/kotlinforforge" #optional
+
+description='''
+Kotlin for Forge. Allows mods to use the Kotlin programming language.
+''' # A description
+
+# A dependency - use the . to indicate dependency for a specific modid. Dependencies are optional.
+[[dependencies.kotlinforforge]] #optional
+    modId="forge" #mandatory
+    mandatory=true #mandatory
+    versionRange="[25,)" #mandatory
+    # An ordering relationship for the dependency - BEFORE or AFTER required if the relationship is not mandatory
+    ordering="NONE"
+
+    side="BOTH"
+# Dependency
+[[dependencies.kotlinforforge]]
+    modId="minecraft"
+    mandatory=true
+    versionRange="[1.14.4]"
+    ordering="NONE"
+    side="BOTH"
+
+# --------------------------------------------------------- #
+# --------------------------------------------------------- #
+# --------------------------------------------------------- #
+
+[[mods]] #mandatory
+displayName="Kotlin for Forge" # Name of mod
+modId="kotlinforforge" # Modid
+version="1.0.0" # Version of kotlinforforge
+authors="TheDarkColour" # Author
+credits="Herobrine knows all." # Credits
\ No newline at end of file
diff --git a/src/main/resources/META-INF/services/net.minecraftforge.forgespi.language.IModLanguageProvider b/src/main/resources/META-INF/services/net.minecraftforge.forgespi.language.IModLanguageProvider
new file mode 100644
index 0000000..c78667e
--- /dev/null
+++ b/src/main/resources/META-INF/services/net.minecraftforge.forgespi.language.IModLanguageProvider
@@ -0,0 +1 @@
+thedarkcolour.kotlinforforge.KotlinLanguageProvider
diff --git a/src/main/resources/pack.mcmeta b/src/main/resources/pack.mcmeta
new file mode 100644
index 0000000..167eba8
--- /dev/null
+++ b/src/main/resources/pack.mcmeta
@@ -0,0 +1,7 @@
+{
+    "pack": {
+        "description": "kotlinforforge resources",
+        "pack_format": 4,
+        "_comment": "A pack_format of 4 requires json lang files. Note: we require v4 pack meta for all mods."
+    }
+}
\ No newline at end of file
diff --git a/src/main/resources/patcher.js b/src/main/resources/patcher.js
new file mode 100644
index 0000000..fcfe312
--- /dev/null
+++ b/src/main/resources/patcher.js
@@ -0,0 +1,50 @@
+function initializeCoreMod() {
+// Unused, remove
+    return {
+        'KotlinPatcher': {
+            'target': {
+                'type': 'METHOD',
+                'class': 'net.minecraftforge.fml.javafmlmod.FMLModContainer',
+                'methodName': 'constructMod',
+                'methodDesc': '(Lnet/minecraftforge/fml/LifecycleEventProvider$LifecycleEvent;)V'
+            },
+            'transformer': function (methodNode) {
+                var VarInsnNode = Java.type('org.objectweb.asm.tree.VarInsnNode');
+                var FieldInsnNode = Java.type('org.objectweb.asm.tree.FieldInsnNode');
+                var MethodInsnNode = Java.type('org.objectweb.asm.tree.MethodInsnNode');
+                var InsnList = Java.type('org.objectweb.asm.tree.InsnList');
+                var Opcodes = Java.type('org.objectweb.asm.Opcodes');
+                var list = new InsnList();
+                list.add(new FieldInsnNode(Opcodes.GETSTATIC, "thedarkcolour/kotlinforforge/AutoKotlinEventBusSubscriber", "INSTANCE", "Lthedarkcolour/kotlinforforge/AutoKotlinEventBusSubscriber;"));
+                list.add(new VarInsnNode(Opcodes.ALOAD, 0));
+                list.add(new VarInsnNode(Opcodes.ALOAD, 0));
+                list.add(new FieldInsnNode(Opcodes.GETFIELD, 'net/minecraftforge/fml/javafmlmod/FMLModContainer', 'scanResults', 'Lnet/minecraftforge/forgespi/language/ModFileScanData;'));
+                list.add(new VarInsnNode(Opcodes.ALOAD, 0));
+                list.add(new FieldInsnNode(Opcodes.GETFIELD, 'net/minecraftforge/fml/javafmlmod/FMLModContainer', 'modClass', 'Ljava/lang/Class;'));
+                list.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL, 'java/lang/Class', 'getClassLoader', '()Ljava/lang/ClassLoader;', false));
+                list.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL, "thedarkcolour/kotlinforforge/AutoKotlinEventBusSubscriber", "inject", "(Lnet/minecraftforge/fml/ModContainer;Lnet/minecraftforge/forgespi/language/ModFileScanData;Ljava/lang/ClassLoader;)V", false));
+
+                for (var i = 0; i < 1000; ++i) {
+                    var insn = methodNode.instructions.get(i);
+                    //print('bruh moment');
+                    if (insn instanceof MethodInsnNode) {
+                        //print('FOUND A METHODINSNNODE');
+                        if (insn.desc === '(Lnet/minecraftforge/fml/ModContainer;Lnet/minecraftforge/forgespi/language/ModFileScanData;Ljava/lang/ClassLoader;)V') {
+                            methodNode.instructions.insertBefore(insn.getPrevious().getPrevious().getPrevious().getPrevious().getPrevious().getPrevious(), list);
+                            //print('PATCHED FMLMODCONTAINER');
+                            break;
+                        }
+                    }
+                }
+
+                //var writer = new ClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);
+                //methodNode.accept(writer);
+                //var reader = new ClassReader(writer.toByteArray());
+                //var cn = new ClassNode();
+                //reader.accept(cn, 0);
+
+                return methodNode;
+            }
+        }
+    }
+}
\ No newline at end of file