e4602b6d48
This patch appears to be no longer relevant, and is seemingly a leading cause of datapack performance being horrific
34 lines
1.8 KiB
Diff
34 lines
1.8 KiB
Diff
From e12abf92b401d1f8780775d955d7e25490deed0f Mon Sep 17 00:00:00 2001
|
|
From: Michael Himing <mhiming@gmail.com>
|
|
Date: Sun, 16 Dec 2018 13:07:33 +1100
|
|
Subject: [PATCH] Fix PlayerEditBookEvent
|
|
|
|
- Updating book writing (not signing) mutated the original item, making
|
|
it impossible to properly cancel the event or modify the book meta
|
|
|
|
- When the event was cancelled, the client's book would keep the
|
|
cancelled writing
|
|
|
|
diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
|
|
index 784f0a3f2..4b3ddfd99 100644
|
|
--- a/src/main/java/net/minecraft/server/PlayerConnection.java
|
|
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
|
|
@@ -871,9 +871,11 @@ public class PlayerConnection implements PacketListenerPlayIn {
|
|
itemstack2.a("pages", (NBTBase) nbttaglist);
|
|
this.player.a(packetplayinbedit.d(), CraftEventFactory.handleEditBookEvent(player, enumitemslot, itemstack1, itemstack2)); // CraftBukkit
|
|
} else {
|
|
- ItemStack old = itemstack1.cloneItemStack(); // CraftBukkit
|
|
- itemstack1.a("pages", (NBTBase) itemstack.getTag().getList("pages", 8));
|
|
- CraftEventFactory.handleEditBookEvent(player, enumitemslot, old, itemstack1); // CraftBukkit
|
|
+ // Paper start - dont mutate players current item, set it from the event
|
|
+ ItemStack newBook = itemstack1.cloneItemStack();
|
|
+ newBook.getOrCreateTagAndSet("pages", (NBTBase)itemstack.getTag().getList("pages", 8));
|
|
+ this.player.setSlot(enumitemslot, CraftEventFactory.handleEditBookEvent(player, enumitemslot, itemstack1, newBook));
|
|
+ // Paper end
|
|
}
|
|
}
|
|
|
|
--
|
|
2.25.1
|
|
|