From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <blake.galbreath@gmail.com>
Date: Mon, 30 Aug 2021 22:49:53 -0500
Subject: [PATCH] Cows naturally aggressive to players chance


diff --git a/src/main/java/net/minecraft/world/entity/animal/Cow.java b/src/main/java/net/minecraft/world/entity/animal/Cow.java
index 2b1b1243fa1e60985ab6fcd0dda9f71db7e3352c..a9820dda0ddf1863080f4169d70eff9c81546bcd 100644
--- a/src/main/java/net/minecraft/world/entity/animal/Cow.java
+++ b/src/main/java/net/minecraft/world/entity/animal/Cow.java
@@ -37,6 +37,7 @@ import org.bukkit.event.player.PlayerBucketFillEvent;
 // CraftBukkit end
 
 public class Cow extends Animal {
+    private boolean isNaturallyAggressiveToPlayers; // Purpur
 
     private static final EntityDimensions BABY_DIMENSIONS = EntityType.COW.getDimensions().scale(0.5F).withEyeHeight(0.665F);
 
@@ -64,6 +65,7 @@ public class Cow extends Animal {
     public void initAttributes() {
         this.getAttribute(Attributes.MAX_HEALTH).setBaseValue(this.level().purpurConfig.cowMaxHealth);
         this.getAttribute(Attributes.SCALE).setBaseValue(this.level().purpurConfig.cowScale);
+        this.getAttribute(Attributes.ATTACK_DAMAGE).setBaseValue(this.level().purpurConfig.cowNaturallyAggressiveToPlayersDamage); // Purpur
     }
     // Purpur end
 
@@ -77,11 +79,18 @@ public class Cow extends Animal {
         return this.level().purpurConfig.cowTakeDamageFromWater;
     }
 
+    @Override
+    public net.minecraft.world.entity.SpawnGroupData finalizeSpawn(net.minecraft.world.level.ServerLevelAccessor world, net.minecraft.world.DifficultyInstance difficulty, net.minecraft.world.entity.MobSpawnType spawnReason, net.minecraft.world.entity.SpawnGroupData entityData) {
+        this.isNaturallyAggressiveToPlayers = world.getLevel().purpurConfig.cowNaturallyAggressiveToPlayersChance > 0.0D && random.nextDouble() <= world.getLevel().purpurConfig.cowNaturallyAggressiveToPlayersChance;
+        return super.finalizeSpawn(world, difficulty, spawnReason, entityData);
+    }
+
     @Override
     protected void registerGoals() {
         this.goalSelector.addGoal(0, new FloatGoal(this));
         this.goalSelector.addGoal(0, new org.purpurmc.purpur.entity.ai.HasRider(this)); // Purpur
         this.goalSelector.addGoal(1, new PanicGoal(this, 2.0D));
+        this.goalSelector.addGoal(1, new net.minecraft.world.entity.ai.goal.MeleeAttackGoal(this, 1.2000000476837158D, true)); // Purpur
         this.goalSelector.addGoal(2, new BreedGoal(this, 1.0D));
         this.goalSelector.addGoal(3, new TemptGoal(this, 1.25D, (itemstack) -> {
             return level().purpurConfig.cowFeedMushrooms > 0 && (itemstack.is(net.minecraft.world.level.block.Blocks.RED_MUSHROOM.asItem()) || itemstack.is(net.minecraft.world.level.block.Blocks.BROWN_MUSHROOM.asItem())) || itemstack.is(ItemTags.COW_FOOD); // Purpur
@@ -90,6 +99,7 @@ public class Cow extends Animal {
         this.goalSelector.addGoal(5, new WaterAvoidingRandomStrollGoal(this, 1.0D));
         this.goalSelector.addGoal(6, new LookAtPlayerGoal(this, Player.class, 6.0F));
         this.goalSelector.addGoal(7, new RandomLookAroundGoal(this));
+        this.targetSelector.addGoal(0, new net.minecraft.world.entity.ai.goal.target.NearestAttackableTargetGoal<>(this, Player.class, 10, true, false, target -> isNaturallyAggressiveToPlayers)); // Purpur
     }
 
     @Override
@@ -98,7 +108,7 @@ public class Cow extends Animal {
     }
 
     public static AttributeSupplier.Builder createAttributes() {
-        return Mob.createMobAttributes().add(Attributes.MAX_HEALTH, 10.0D).add(Attributes.MOVEMENT_SPEED, 0.20000000298023224D);
+        return Mob.createMobAttributes().add(Attributes.MAX_HEALTH, 10.0D).add(Attributes.MOVEMENT_SPEED, 0.20000000298023224D).add(Attributes.ATTACK_DAMAGE, 0.0D); // Purpur
     }
 
     @Override
diff --git a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
index 291e9bf78caf6b19ff800b520ccdd25bf86c0ba0..15f6ec51cbfe4aae5523749f71d10361fdf0744d 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -1328,7 +1328,14 @@ public class PurpurWorldConfig {
     public int cowFeedMushrooms = 0;
     public int cowBreedingTicks = 6000;
     public boolean cowTakeDamageFromWater = false;
+    public double cowNaturallyAggressiveToPlayersChance = 0.0D;
+    public double cowNaturallyAggressiveToPlayersDamage = 2.0D;
     private void cowSettings() {
+        if (PurpurConfig.version < 22) {
+            double oldValue = getDouble("mobs.cow.naturally-aggressive-to-players-chance", cowNaturallyAggressiveToPlayersChance);
+            set("mobs.cow.naturally-aggressive-to-players-chance", null);
+            set("mobs.cow.naturally-aggressive-to-players.chance", oldValue);
+        }
         cowRidable = getBoolean("mobs.cow.ridable", cowRidable);
         cowRidableInWater = getBoolean("mobs.cow.ridable-in-water", cowRidableInWater);
         cowControllable = getBoolean("mobs.cow.controllable", cowControllable);
@@ -1342,6 +1349,8 @@ public class PurpurWorldConfig {
         cowFeedMushrooms = getInt("mobs.cow.feed-mushrooms-for-mooshroom", cowFeedMushrooms);
         cowBreedingTicks = getInt("mobs.cow.breeding-delay-ticks", cowBreedingTicks);
         cowTakeDamageFromWater = getBoolean("mobs.cow.takes-damage-from-water", cowTakeDamageFromWater);
+        cowNaturallyAggressiveToPlayersChance = getDouble("mobs.cow.naturally-aggressive-to-players.chance", cowNaturallyAggressiveToPlayersChance);
+        cowNaturallyAggressiveToPlayersDamage = getDouble("mobs.cow.naturally-aggressive-to-players.damage", cowNaturallyAggressiveToPlayersDamage);
     }
 
     public boolean creeperRidable = false;