Purpur/patches/server/0175-Iron-golem-calm-anger-options.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <Blake.Galbreath@GMail.com>
Date: Thu, 13 May 2021 21:22:51 -0500
Subject: [PATCH] Iron golem calm anger options


diff --git a/src/main/java/net/minecraft/world/entity/animal/IronGolem.java b/src/main/java/net/minecraft/world/entity/animal/IronGolem.java
index e3d725e656bc5ffc5fc92133794a80799fb21c48..fdad66c329ff8945a76a944deca7751ab9d3214b 100644
--- a/src/main/java/net/minecraft/world/entity/animal/IronGolem.java
+++ b/src/main/java/net/minecraft/world/entity/animal/IronGolem.java
@@ -100,6 +100,7 @@ public class IronGolem extends AbstractGolem implements NeutralMob {
     protected void registerGoals() {
         if (level.purpurConfig.ironGolemCanSwim) this.goalSelector.addGoal(0, new net.minecraft.world.entity.ai.goal.FloatGoal(this)); // Purpur
         this.goalSelector.addGoal(0, new org.purpurmc.purpur.entity.ai.HasRider(this)); // Purpur
+        if (this.level.purpurConfig.ironGolemPoppyCalm) this.goalSelector.addGoal(0, new org.purpurmc.purpur.entity.ai.ReceiveFlower(this)); // Purpur
         this.goalSelector.addGoal(1, new MeleeAttackGoal(this, 1.0D, true));
         this.goalSelector.addGoal(2, new MoveTowardsTargetGoal(this, 0.9D, 32.0F));
         this.goalSelector.addGoal(2, new MoveBackToVillageGoal(this, 0.6D, false));
@@ -324,6 +325,8 @@ public class IronGolem extends AbstractGolem implements NeutralMob {
                     itemstack.shrink(1);
                 }
 
+                if (this.level.purpurConfig.ironGolemHealCalm && isAngry() && getHealth() == getMaxHealth()) stopBeingAngry(); // Purpur
+
                 return InteractionResult.sidedSuccess(this.level.isClientSide);
             }
         }
diff --git a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
index 388f02553244beee6c4c4ee91dcac9349c403366..123e54b6f3fd1d40c35672bb35db9b9dd983a6cd 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -1335,6 +1335,8 @@ public class PurpurWorldConfig {
     public boolean ironGolemCanSwim = false;
     public double ironGolemMaxHealth = 100.0D;
     public boolean ironGolemTakeDamageFromWater = false;
+    public boolean ironGolemPoppyCalm = false;
+    public boolean ironGolemHealCalm = false;
     private void ironGolemSettings() {
         ironGolemRidable = getBoolean("mobs.iron_golem.ridable", ironGolemRidable);
         ironGolemRidableInWater = getBoolean("mobs.iron_golem.ridable-in-water", ironGolemRidableInWater);
@@ -1347,6 +1349,8 @@ public class PurpurWorldConfig {
         }
         ironGolemMaxHealth = getDouble("mobs.iron_golem.attributes.max_health", ironGolemMaxHealth);
         ironGolemTakeDamageFromWater = getBoolean("mobs.iron_golem.takes-damage-from-water", ironGolemTakeDamageFromWater);
+        ironGolemPoppyCalm = getBoolean("mobs.iron_golem.poppy-calms-anger", ironGolemPoppyCalm);
+        ironGolemHealCalm = getBoolean("mobs.iron_golem.healing-calms-anger", ironGolemHealCalm);
     }
 
     public boolean llamaRidable = false;
diff --git a/src/main/java/org/purpurmc/purpur/entity/ai/ReceiveFlower.java b/src/main/java/org/purpurmc/purpur/entity/ai/ReceiveFlower.java
new file mode 100644
index 0000000000000000000000000000000000000000..115a3b36cbb7716b28ef940a29ca97ac42a8a521
--- /dev/null
+++ b/src/main/java/org/purpurmc/purpur/entity/ai/ReceiveFlower.java
@@ -0,0 +1,91 @@
+package org.purpurmc.purpur.entity.ai;
+
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.world.InteractionHand;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.entity.ai.goal.Goal;
+import net.minecraft.world.entity.animal.IronGolem;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.level.block.Blocks;
+
+import java.util.EnumSet;
+import java.util.UUID;
+
+public class ReceiveFlower extends Goal {
+    private final IronGolem irongolem;
+    private ServerPlayer target;
+    private int cooldown;
+
+    public ReceiveFlower(IronGolem entity) {
+        this.irongolem = entity;
+        setFlags(EnumSet.of(Flag.MOVE, Flag.LOOK));
+    }
+
+    @Override
+    public boolean canUse() {
+        if (this.irongolem.getOfferFlowerTick() > 0) {
+            return false;
+        }
+        if (!this.irongolem.isAngry()) {
+            return false;
+        }
+        UUID uuid = this.irongolem.getPersistentAngerTarget();
+        if (uuid == null) {
+            return false;
+        }
+        Entity target = ((ServerLevel) this.irongolem.level).getEntity(uuid);
+        if (!(target instanceof ServerPlayer player)) {
+            return false;
+        }
+        InteractionHand hand = getPoppyHand(player);
+        if (hand == null) {
+            return false;
+        }
+        removeFlower(player, hand);
+        this.target = player;
+        return true;
+    }
+
+    @Override
+    public boolean canContinueToUse() {
+        return this.cooldown > 0;
+    }
+
+    @Override
+    public void start() {
+        this.cooldown = 100;
+        this.irongolem.stopBeingAngry();
+        this.irongolem.offerFlower(true);
+    }
+
+    @Override
+    public void stop() {
+        this.irongolem.offerFlower(false);
+        this.target = null;
+    }
+
+    @Override
+    public void tick() {
+        this.irongolem.getLookControl().setLookAt(this.target, 30.0F, 30.0F);
+        --this.cooldown;
+    }
+
+    private InteractionHand getPoppyHand(ServerPlayer player) {
+        if (isPoppy(player.getMainHandItem())) {
+            return InteractionHand.MAIN_HAND;
+        }
+        if (isPoppy(player.getOffhandItem())) {
+            return InteractionHand.OFF_HAND;
+        }
+        return null;
+    }
+
+    private void removeFlower(ServerPlayer player, InteractionHand hand) {
+        player.setItemInHand(hand, ItemStack.EMPTY);
+    }
+
+    private boolean isPoppy(ItemStack item) {
+        return item.getItem() == Blocks.POPPY.asItem();
+    }
+}