PaperMC/patches/server/0868-Add-various-missing-EntityDropItemEvent-calls.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Tue, 20 Jul 2021 21:35:47 -0700
Subject: [PATCH] Add various missing EntityDropItemEvent calls


diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 0bc808ac268dce5a170e7e55666885b8c2c09164..b2a0423b92f1a74a6c07433519fdbd5fdfa56976 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -2535,6 +2535,14 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
             stack.setCount(0); // Paper - destroy this item - if this ever leaks due to game bugs, ensure it doesn't dupe
 
             entityitem.setDefaultPickUpDelay();
+            // Paper start
+            return this.spawnAtLocation(entityitem);
+        }
+    }
+    @Nullable
+    public ItemEntity spawnAtLocation(ItemEntity entityitem) {
+        {
+            // Paper end
             // CraftBukkit start
             EntityDropItemEvent event = new EntityDropItemEvent(this.getBukkitEntity(), (org.bukkit.entity.Item) entityitem.getBukkitEntity());
             Bukkit.getPluginManager().callEvent(event);
diff --git a/src/main/java/net/minecraft/world/entity/animal/Dolphin.java b/src/main/java/net/minecraft/world/entity/animal/Dolphin.java
index 7c53dddb598de85abf1eb8b8ee183a6e8e6f9c74..3f100d847fbce6db5b625e99c4f3694576237372 100644
--- a/src/main/java/net/minecraft/world/entity/animal/Dolphin.java
+++ b/src/main/java/net/minecraft/world/entity/animal/Dolphin.java
@@ -593,7 +593,7 @@ public class Dolphin extends WaterAnimal {
                 float f2 = 0.02F * Dolphin.this.random.nextFloat();
 
                 entityitem.setDeltaMovement((double) (0.3F * -Mth.sin(Dolphin.this.getYRot() * 0.017453292F) * Mth.cos(Dolphin.this.getXRot() * 0.017453292F) + Mth.cos(f1) * f2), (double) (0.3F * Mth.sin(Dolphin.this.getXRot() * 0.017453292F) * 1.5F), (double) (0.3F * Mth.cos(Dolphin.this.getYRot() * 0.017453292F) * Mth.cos(Dolphin.this.getXRot() * 0.017453292F) + Mth.sin(f1) * f2));
-                Dolphin.this.level.addFreshEntity(entityitem);
+                Dolphin.this.spawnAtLocation(entityitem); // Paper - call EntityDropItemEvent
             }
         }
     }
diff --git a/src/main/java/net/minecraft/world/entity/animal/Fox.java b/src/main/java/net/minecraft/world/entity/animal/Fox.java
index f4cfefd72704b3423392ffeb57e78c5d6410ff6f..e4edeeb04fd7183514e53e20dcef8aca56f02f7d 100644
--- a/src/main/java/net/minecraft/world/entity/animal/Fox.java
+++ b/src/main/java/net/minecraft/world/entity/animal/Fox.java
@@ -502,14 +502,14 @@ public class Fox extends Animal implements VariantHolder<Fox.Type> {
             entityitem.setPickUpDelay(40);
             entityitem.setThrower(this.getUUID());
             this.playSound(SoundEvents.FOX_SPIT, 1.0F, 1.0F);
-            this.level.addFreshEntity(entityitem);
+            this.spawnAtLocation(entityitem); // Paper - call EntityDropItemEvent
         }
     }
 
     private void dropItemStack(ItemStack stack) {
         ItemEntity entityitem = new ItemEntity(this.level, this.getX(), this.getY(), this.getZ(), stack);
 
-        this.level.addFreshEntity(entityitem);
+        this.spawnAtLocation(entityitem); // Paper - call EntityDropItemEvent
     }
 
     @Override
diff --git a/src/main/java/net/minecraft/world/entity/animal/goat/Goat.java b/src/main/java/net/minecraft/world/entity/animal/goat/Goat.java
index d562ad27bf690927e6a84e416ab74a460950f249..0b0377fa1483e4fcb31456af6c7e1749bd8af484 100644
--- a/src/main/java/net/minecraft/world/entity/animal/goat/Goat.java
+++ b/src/main/java/net/minecraft/world/entity/animal/goat/Goat.java
@@ -354,8 +354,7 @@ public class Goat extends Animal {
             double d2 = (double) Mth.randomBetween(this.random, -0.2F, 0.2F);
             ItemEntity entityitem = new ItemEntity(this.level, vec3d.x(), vec3d.y(), vec3d.z(), itemstack, d0, d1, d2);
 
-            this.level.addFreshEntity(entityitem);
-            return true;
+            return this.spawnAtLocation(entityitem) != null; // Paper - call EntityDropItemEvent by calling spawnAtLocation.
         }
     }