From 6ee87c160010e93468718d59950d9a839f0aa2ed Mon Sep 17 00:00:00 2001
From: Rothes <449181985@qq.com>
Date: Sun, 12 Jun 2022 21:23:19 +0800
Subject: [PATCH] Fix entity death drops rollback

---
 .../prism/actions/ItemStackAction.java        | 45 ++++++++++++-------
 .../prism/listeners/PrismEntityEvents.java    |  1 -
 2 files changed, 28 insertions(+), 18 deletions(-)

diff --git a/Prism/src/main/java/network/darkhelmet/prism/actions/ItemStackAction.java b/Prism/src/main/java/network/darkhelmet/prism/actions/ItemStackAction.java
index a7c8b8d3..39725299 100644
--- a/Prism/src/main/java/network/darkhelmet/prism/actions/ItemStackAction.java
+++ b/Prism/src/main/java/network/darkhelmet/prism/actions/ItemStackAction.java
@@ -14,6 +14,7 @@
 import org.bukkit.Bukkit;
 import org.bukkit.Location;
 import org.bukkit.Material;
+import org.bukkit.OfflinePlayer;
 import org.bukkit.block.Block;
 import org.bukkit.block.BlockFace;
 import org.bukkit.block.Jukebox;
@@ -197,6 +198,12 @@ protected ChangeResult placeItems(Player player, PrismParameters parameters, boo
             final Block block = getWorld().getBlockAt(getLoc());
             Inventory inventory = null;
 
+            // Entity death drops. Just remove the drops.
+            if (getUuid() == null || getActionType().getName().equals("item-drop")) {
+                removeItemEntity();
+                return new ChangeResultImpl(ChangeResultType.APPLIED, null);
+            }
+
             // Item drop/pickup from player inventories
             if (getActionType().getName().equals("item-drop") || getActionType().getName().equals("item-pickup")) {
 
@@ -385,23 +392,7 @@ protected ChangeResult placeItems(Player player, PrismParameters parameters, boo
 
                     // Item was added to the inv, we need to remove the entity
                     if (added && (n.equals("item-drop") || n.equals("item-pickup"))) {
-                        if (!removeFromCache(getId())) {
-                            // Not cached, search nearby for it.
-                            for (final Entity entity : getLoc().getWorld().getNearbyEntities(getLoc(), 10, 10, 10)) {
-                                if (entity instanceof Item) {
-                                    final ItemStack stack = ((Item) entity).getItemStack();
-                                    if (stack.isSimilar(getItem())) {
-                                        // Remove the event's number of items from
-                                        // the stack
-                                        stack.setAmount(stack.getAmount() - getItem().getAmount());
-                                        if (stack.getAmount() == 0) {
-                                            entity.remove();
-                                        }
-                                        break;
-                                    }
-                                }
-                            }
-                        }
+                        removeItemEntity();
                     }
                 }
 
@@ -471,4 +462,24 @@ protected ChangeResult placeItems(Player player, PrismParameters parameters, boo
         }
         return new ChangeResultImpl(result, null);
     }
+
+    private void removeItemEntity() {
+        if (!removeFromCache(getId())) {
+            // Not cached, search nearby for it.
+            for (final Entity entity : getLoc().getWorld().getNearbyEntities(getLoc(), 10, 10, 10)) {
+                if (entity instanceof Item) {
+                    final ItemStack stack = ((Item) entity).getItemStack();
+                    if (stack.isSimilar(getItem())) {
+                        // Remove the event's number of items from
+                        // the stack
+                        stack.setAmount(stack.getAmount() - getItem().getAmount());
+                        if (stack.getAmount() == 0) {
+                            entity.remove();
+                        }
+                        break;
+                    }
+                }
+            }
+        }
+    }
 }
diff --git a/Prism/src/main/java/network/darkhelmet/prism/listeners/PrismEntityEvents.java b/Prism/src/main/java/network/darkhelmet/prism/listeners/PrismEntityEvents.java
index 1382bec0..5dc5cde1 100644
--- a/Prism/src/main/java/network/darkhelmet/prism/listeners/PrismEntityEvents.java
+++ b/Prism/src/main/java/network/darkhelmet/prism/listeners/PrismEntityEvents.java
@@ -323,7 +323,6 @@ public void onEntityDeathDropItemSpawn(final ItemSpawnEvent event) {
             return;
         }
         ItemStack itemStack = entity.getItemStack();
-        System.out.println(drops.itemStacks);
         if (drops.itemStacks.contains(itemStack)) {
             if (drops.sourceName != null) {
                 RecordingQueue.addToQueue(ActionFactory.createItemStack("item-drop", itemStack, itemStack.getAmount(), -1, null,