Add doEndermanPlace gamerule

Author: the-pink-hacker

src/main/java/com/thepinkhacker/commandsplus/mixin/entity/mob/EndermanEntityPickUpBlockGoalMixin.java

@@ -3,7 +3,6 @@
 import com.thepinkhacker.commandsplus.world.GameRuleManager;
 import net.minecraft.entity.mob.EndermanEntity;
 import net.minecraft.server.world.ServerWorld;
-import net.minecraft.world.GameRules;
 import org.spongepowered.asm.mixin.Final;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.Shadow;

src/main/java/com/thepinkhacker/commandsplus/mixin/entity/mob/EndermanEntityPlaceBlockGoalMixin.java

@@ -0,0 +1,31 @@
+package com.thepinkhacker.commandsplus.mixin.entity.mob;
+
+import com.thepinkhacker.commandsplus.world.GameRuleManager;
+import net.minecraft.entity.mob.EndermanEntity;
+import net.minecraft.server.world.ServerWorld;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+@Mixin(EndermanEntity.PlaceBlockGoal.class)
+public class EndermanEntityPlaceBlockGoalMixin {
+        @Shadow
+        @Final
+        private EndermanEntity enderman;
+
+    @Inject(
+            method = "canStart()Z",
+            at = @At("RETURN"),
+            cancellable = true
+    )
+    private void commandsplus_gamerule_check(CallbackInfoReturnable<Boolean> cir) {
+        if (this.enderman.getWorld() instanceof ServerWorld world) {
+            if (!world.getGameRules().getBoolean(GameRuleManager.DO_ENDERMAN_PLACE)) {
+                cir.setReturnValue(false);
+            }
+        }
+    }
+}

src/main/java/com/thepinkhacker/commandsplus/world/GameRuleManager.java

@@ -16,6 +16,12 @@ public class GameRuleManager {
             GameRules.BooleanRule.create(true)
     );
 
+    public static final GameRules.Key<GameRules.BooleanRule> DO_ENDERMAN_PLACE = GameRuleRegistry.register(
+            "doEndermanPlace",
+            GameRules.Category.MOBS,
+            GameRules.BooleanRule.create(true)
+    );
+
     // Java is weird and won't init the variables unless this runs
     // Otherwise it would try to init after the registry is frozen
     public static void register() {}

src/main/resources/assets/commandsplus/lang/en_us.json

@@ -60,5 +60,7 @@
     "gamerule.itemDespawnAge": "Item Despawn Age",
     "gamerule.itemDespawnAge.description": "Controls how long it takes for an item to despawn.",
     "gamerule.doEndermanPickup": "Do Enderman Pickup",
-    "gamerule.doEndermanPickup.description": "Allow Endermen to pick up blocks."
+    "gamerule.doEndermanPickup.description": "Allow Endermen to pick up blocks.",
+    "gamerule.doEndermanPlace": "Do Enderman Place",
+    "gamerule.doEndermanPlace.description": "Allow Endermen to place blocks."
 }

src/main/resources/commandsplus.accesswidener

@@ -11,3 +11,4 @@ accessible method net/minecraft/block/entity/SignBlockEntity updateListeners ()V
 accessible field net/minecraft/entity/player/HungerManager exhaustion F
 
 accessible class net/minecraft/entity/mob/EndermanEntity$PickUpBlockGoal
+accessible class net/minecraft/entity/mob/EndermanEntity$PlaceBlockGoal

src/main/resources/commandsplus.mixins.json

@@ -5,7 +5,8 @@
   "compatibilityLevel": "JAVA_17",
   "mixins": [
     "entity.ItemEntityMixin",
-    "entity.mob.EndermanEntityPickUpBlockGoalMixin"
+    "entity.mob.EndermanEntityPickUpBlockGoalMixin",
+    "entity.mob.EndermanEntityPlaceBlockGoalMixin"
   ],
   "client": [],
   "injectors": {