Paper/patches/server/0838-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 af3cdef67ca516cfe85dea7580b3e93554350115..8fef49ba8a46e4490356efdc9dd4ae8ca255421a 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -2644,6 +2644,14 @@ 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 5c260a56b1df66069aec59726d61ef382ae29faa..501e6cb4aa83f81c1f657e41f4e7f11d19d46831 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 1526ca0063da0962ae781b7aa877d8cf5e1ffd73..167f142d6960867320b90d61db312ebf23e24a48 100644
--- a/src/main/java/net/minecraft/world/entity/animal/Fox.java
+++ b/src/main/java/net/minecraft/world/entity/animal/Fox.java
@@ -503,14 +503,14 @@ 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 316823ea978b9c9b6656a01254c201fdd8c11797..c2111491642dfa29bb85027e137b1a19e3d2d9e6 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.
         }
     }