fix: port to 1.8.9

build.gradle

@@ -1,21 +1,30 @@
 plugins {
-    id 'fabric-loom' version '0.10-SNAPSHOT'
+    id 'fabric-loom' version '0.8-SNAPSHOT'
 }
 
 version = "${minecraft_version}-fabric-${mod_version}"
 group = mod_id
 
 repositories {
+    maven {
+        name = "legacy-fabric"
+        url = "https://maven.legacyfabric.net"
+    }
+}
 
+minecraft {
+    intermediaryUrl = {
+        return "https://maven.legacyfabric.net/net/fabricmc/intermediary/" + it + "/intermediary-" + it + "-v2.jar";
+    }
 }
 
 dependencies {
-    minecraft "com.mojang:minecraft:${project.minecraft_version}"
-    mappings minecraft.officialMojangMappings()
-    modImplementation "net.fabricmc:fabric-loader:${project.loader_version}"
+    minecraft "com.mojang:minecraft:${minecraft_version}"
+    mappings "net.fabricmc:yarn:${yarn_mappings}:v2"
+    modImplementation "net.fabricmc:fabric-loader:${loader_version}"
 
-    // Fabric API. This is technically optional, but you probably want it anyway.
-    modImplementation "net.fabricmc.fabric-api:fabric-api:${project.fabric_version}"
+    // Legacy-Fabric API
+    modImplementation "net.legacyfabric.legacy-fabric-api:legacy-fabric-api:${fabric_version}"
 }
 
 processResources {

gradle.properties

@@ -1,9 +1,11 @@
 org.gradle.jvmargs=-Xmx1G
 org.gradle.daemon=false
 
-minecraft_version=1.16.5
-loader_version=0.12.9
-fabric_version=0.42.0+1.16
+minecraft_version=1.8.9
+yarn_mappings=1.8.9+build.202202022355
+loader_version=0.13.0
+# Legacy-Fabric API
+fabric_version=1.2.2+1.8.9
 
 mod_name=mcmouser
 mod_id=me.virb3.mcmouser

src/main/java/me/virb3/mcmouser/CoreMod.java

@@ -0,0 +1,37 @@
+package me.virb3.mcmouser;
+
+import net.fabricmc.loader.api.entrypoint.PreLaunchEntrypoint;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+import java.io.File;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.StandardCopyOption;
+import java.util.Locale;
+
+public class CoreMod implements PreLaunchEntrypoint {
+    private static final Logger LOGGER = LogManager.getLogger();
+
+    @Override
+    public void onPreLaunch() {
+        if (!System.getProperty("os.name").toLowerCase(Locale.ROOT).contains("mac")) {
+            LOGGER.info("Not running on macOS, disabling");
+            return;
+        }
+        try {
+            File tempDir = Files.createTempDirectory("mcmouser").toFile();
+            tempDir.deleteOnExit();
+            Path tempFile = tempDir.toPath().resolve("liblwjgl.dylib");
+            try (InputStream is = CoreMod.class.getResourceAsStream("/liblwjgl.dylib")) {
+                Files.copy(is, tempFile, StandardCopyOption.REPLACE_EXISTING);
+            }
+            System.setProperty("org.lwjgl.librarypath", tempDir.getAbsolutePath());
+            LOGGER.info("Everything loaded");
+        } catch (Exception e) {
+            LOGGER.error("Failed to load patched liblwjgl.dylib, throwing exception");
+            throw new RuntimeException(e);
+        }
+    }
+}

src/main/resources/fabric.mod.json

@@ -10,18 +10,11 @@
   "icon": "assets/mcmouser/icon.png",
   "environment": "client",
   "entrypoints": {
-    "client": [
-      "me.virb3.mcmouser.client.McMouserClient"
-    ],
-    "main": [
-      "me.virb3.mcmouser.McMouser"
+    "preLaunch": [
+      "me.virb3.mcmouser.CoreMod"
     ]
   },
-  "mixins": [
-    "mcmouser.mixins.json"
-  ],
   "depends": {
-    "fabricloader": ">=0.12.9",
-    "minecraft": ">=1.16"
+    "minecraft": "1.8.9"
   }
 }