kotlinify

build.gradle

@@ -2,6 +2,7 @@ plugins {
 	id "fabric-loom" version "1.5-SNAPSHOT"
 	id "legacy-looming" version "1.5-SNAPSHOT" // Version must be the same as fabric-loom's
 	id "maven-publish"
+	id "org.jetbrains.kotlin.jvm"
 }
 
 base.archivesName = project.archives_base_name
@@ -33,6 +34,8 @@ dependencies {
 
 	// You can retrieve a specific api module using this notation.
 	// modImplementation(legacy.apiModule("legacy-fabric-item-groups-v1", project.fabric_version))
+
+	modImplementation "net.fabricmc:fabric-language-kotlin:${project.fabric_language_kotlin_version}"
 }
 
 processResources {
@@ -84,3 +87,5 @@ publishing {
 		// mavenLocal()
 	}
 }
+
+compileKotlin.kotlinOptions.jvmTarget = "1.8"

gradle.properties

@@ -10,6 +10,8 @@ org.gradle.jvmargs=-Xmx1G
 # Legacy Fabric API
 # Also available for mc 1.7.10, 1.8, 1.9.4, 1.10.2, 1.11.2 and 1.12.2
 	fabric_version = 1.9.1+1.8.9
+	fabric_language_kotlin_version = 1.10.17+kotlin.1.9.22
+	kotlin_version = 1.9.22
 
 # Mod Properties
 	mod_version = 1.0.0

settings.gradle

@@ -10,4 +10,7 @@ pluginManagement {
 		}
 		gradlePluginPortal()
 	}
+	plugins {
+		id "org.jetbrains.kotlin.jvm" version kotlin_version
+	}
 }

src/main/kotlin/net/fabricmc/example/ExampleModKt.kt

@@ -0,0 +1,12 @@
+package net.fabricmc.example
+
+import net.fabricmc.api.ModInitializer
+
+
+// if you wish for a different type of entrypoint, check the documentation here: https://github.com/FabricMC/fabric-language-kotlin?tab=readme-ov-file#entrypoint-samples
+
+class ExampleModKt : ModInitializer {
+    override fun onInitialize() {
+        println("Hello Fabric world!")
+    }
+}

src/main/resources/fabric.mod.json

@@ -16,7 +16,10 @@
   "environment": "*",
   "entrypoints": {
     "main": [
-      "net.fabricmc.example.ExampleMod"
+      {
+        "adapter": "kotlin",
+        "value": "net.fabricmc.example.ExampleModKt"
+      }
     ]
   },
   "mixins": [
@@ -27,6 +30,7 @@
     "minecraft": "1.8.9"
   },
   "suggests": {
-    "another-mod": "*"
+    "another-mod": "*",
+    "fabric-language-kotlin": ">=1.10.17+kotlin.1.9.22"
   }
 }