Create gamerule to control whether Endermen holding blocks are persis…

…tent

build.gradle

@@ -15,12 +15,7 @@ dependencies {
 	minecraft "com.mojang:minecraft:${project.minecraft_version}"
 	mappings "net.fabricmc:yarn:${project.yarn_mappings}:v2"
 	modImplementation "net.fabricmc:fabric-loader:${project.loader_version}"
-
-	// Fabric API. This is technically optional, but you probably want it anyway.
-	modImplementation "net.fabricmc.fabric-api:fabric-api:${project.fabric_version}"
-
-	// PSA: Some older mods, compiled on Loom 0.2.1, might have outdated Maven POMs.
-	// You may need to force-disable transitiveness on them.
+	modImplementation fabricApi.module("fabric-game-rule-api-v1", project.fabric_version)
 }
 
 processResources {

gradle.properties

@@ -2,16 +2,12 @@
 org.gradle.jvmargs=-Xmx1G
 
 # Fabric Properties
-	# check these on https://fabricmc.net/use
-	minecraft_version=1.16.4
-	yarn_mappings=1.16.4+build.6
-	loader_version=0.10.6+build.214
+# check these on https://fabricmc.net/use
+minecraft_version=1.16.5
+yarn_mappings=1.16.5+build.2
+loader_version=0.11.1
+fabric_version=0.30.0+1.16
 
-# Mod Properties
-	mod_version = 1.0.0
-	maven_group = net.fabricmc
-	archives_base_name = fabric-example-mod
-
-# Dependencies
-	# currently not on the main fabric site, check on the maven: https://maven.fabricmc.net/net/fabricmc/fabric-api/fabric-api
-	fabric_version=0.25.1+build.416-1.16
+mod_version = 1.0.0
+maven_group = vktec
+archives_base_name = unpersist-endermen

src/main/java/vktec/unpersistendermen/UnpersistEndermenMod.java

@@ -0,0 +1,14 @@
+package vktec.unpersistendermen;
+
+import net.fabricmc.api.ModInitializer;
+import net.fabricmc.fabric.api.gamerule.v1.GameRuleFactory;
+import net.fabricmc.fabric.api.gamerule.v1.GameRuleRegistry;
+import net.minecraft.world.GameRules;
+
+public class UnpersistEndermenMod implements ModInitializer {
+	public static GameRules.Key<GameRules.BooleanRule> ENDERMEN_PERSIST = GameRuleRegistry.register("endermenPersist", GameRules.Category.MOBS, GameRuleFactory.createBooleanRule(true));
+
+	@Override
+	public void onInitialize() {
+	}
+}

src/main/java/vktec/unpersistendermen/mixin/EndermanEntityMixin.java

@@ -0,0 +1,27 @@
+package vktec.unpersistendermen.mixin;
+
+import net.minecraft.block.BlockState;
+import net.minecraft.entity.EntityType;
+import net.minecraft.entity.mob.EndermanEntity;
+import net.minecraft.entity.mob.HostileEntity;
+import net.minecraft.world.World;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+import vktec.unpersistendermen.UnpersistEndermenMod;
+
+@Mixin(EndermanEntity.class)
+public abstract class EndermanEntityMixin extends HostileEntity {
+    public EndermanEntityMixin(EntityType<? extends EndermanEntity> arg, World arg2) {
+        super(arg, arg2);
+    }
+
+    @Redirect(method = "cannotDespawn", at = @At(value = "INVOKE", target = "Lnet/minecraft/entity/mob/EndermanEntity;getCarriedBlock()Lnet/minecraft/block/BlockState;"))
+    public BlockState redirectCarriedBlock(EndermanEntity self) {
+	    if (self.world.isClient || self.world.getGameRules().getBoolean(UnpersistEndermenMod.ENDERMEN_PERSIST)) {
+			return self.getCarriedBlock();
+	    } else {
+		    return null;
+	    }
+    }
+}

src/main/resources/fabric.mod.json

@@ -1,37 +1,33 @@
 {
   "schemaVersion": 1,
-  "id": "modid",
+  "id": "unpersist-endermen",
   "version": "${version}",
 
-  "name": "Example Mod",
-  "description": "This is an example description! Tell everyone what your mod is about!",
+  "name": "Unpersist Endermen",
+  "description": "Make Endermen holding blocks non-persistent",
   "authors": [
-    "Me!"
+    "vktec"
   ],
   "contact": {
-    "homepage": "https://fabricmc.net/",
-    "sources": "https://github.com/FabricMC/fabric-example-mod"
+    "homepage": "https://github.com/vktec/unpersist-endermen",
+    "sources": "https://github.com/vktec/unpersist-endermen"
   },
 
-  "license": "CC0-1.0",
-  "icon": "assets/modid/icon.png",
+  "license": "Unlicense",
 
-  "environment": "*",
   "entrypoints": {
     "main": [
-      "net.fabricmc.example.ExampleMod"
+      "vktec.unpersistendermen.UnpersistEndermenMod"
     ]
   },
+  "environment": "*",
   "mixins": [
-    "modid.mixins.json"
+    "unpersist-endermen.mixins.json"
   ],
 
   "depends": {
     "fabricloader": ">=0.7.4",
-    "fabric": "*",
+    "fabric-game-rule-api-v1": "*",
     "minecraft": "1.16.x"
-  },
-  "suggests": {
-    "another-mod": "*"
   }
 }

src/main/resources/modid.mixins.json → src/main/resources/unpersist-endermen.mixins.json

@@ -1,12 +1,10 @@
 {
   "required": true,
   "minVersion": "0.8",
-  "package": "net.fabricmc.example.mixin",
+  "package": "vktec.unpersistendermen.mixin",
   "compatibilityLevel": "JAVA_8",
   "mixins": [
-  ],
-  "client": [
-    "ExampleMixin"
+	  "EndermanEntityMixin"
   ],
   "injectors": {
     "defaultRequire": 1