PaperMC/patches/server/0469-Extend-block-drop-capture-to-capture-all-items-added.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Thu, 17 Sep 2020 00:36:05 +0100
Subject: [PATCH] Extend block drop capture to capture all items added to the
 world


diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 4fc75299b65b2d298f6f8397e56c44221ed4c3e9..9b7a87b0ba537d1e92d0c02149f97dc41975c53f 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -1507,6 +1507,12 @@ public class ServerLevel extends Level implements WorldGenLevel {
             // WorldServer.LOGGER.warn("Tried to add entity {} but it was marked as removed already", EntityTypes.getKey(entity.getType())); // CraftBukkit
             return false;
         } else {
+            // Paper start - capture all item additions to the world
+            if (captureDrops != null && entity instanceof net.minecraft.world.entity.item.ItemEntity) {
+                captureDrops.add((net.minecraft.world.entity.item.ItemEntity) entity);
+                return true;
+            }
+            // Paper end
             // SPIGOT-6415: Don't call spawn event when reason is null. For example when an entity teleports to a new world.
             if (spawnReason != null && !CraftEventFactory.doEntityAddEventCalling(this, entity, spawnReason)) {
                 return false;
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
index c185083abf2b4527a7fe046d83c64cd2cc5b5bb9..7c713c98201c816a70ac999e86685b1c6bbd372d 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
@@ -434,10 +434,12 @@ public class ServerPlayerGameMode {
                     // return true; // CraftBukkit
                 }
                 // CraftBukkit start
+                java.util.List<net.minecraft.world.entity.item.ItemEntity> itemsToDrop = level.captureDrops; // Paper - store current list
+                level.captureDrops = null; // Paper - Remove this earlier so that we can actually drop stuff
                 if (event.isDropItems()) {
-                    org.bukkit.craftbukkit.event.CraftEventFactory.handleBlockDropItemEvent(bblock, state, this.player, level.captureDrops);
+                    org.bukkit.craftbukkit.event.CraftEventFactory.handleBlockDropItemEvent(bblock, state, this.player, itemsToDrop); // Paper - use stored ref
                 }
-                level.captureDrops = null;
+                //world.captureDrops = null; // Paper - move up
 
                 // Drop event experience
                 if (flag && event != null) {