Paper/patches/server/0661-Fix-incosistency-issue-with-empty-map-items-in-CB.patch
Jake Potrebic 9147456fc9
Updated Upstream (CraftBukkit/Spigot) (#8815)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

CraftBukkit Changes:
ab8ace685 SPIGOT-7236: Bone meal doesn't increase use statistic
7dcb59b8e Avoid switch on material in previous commit

Spigot Changes:
19641c75 SPIGOT-7235: World.Spigot#strikeLightningEffect doesn't do anything
2023-01-27 12:52:04 -08:00

32 lines
1.9 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Sun, 1 Aug 2021 09:49:06 +0100
Subject: [PATCH] Fix incosistency issue with empty map items in CB
diff --git a/src/main/java/net/minecraft/world/item/MapItem.java b/src/main/java/net/minecraft/world/item/MapItem.java
index f883e1bc4150bc074f1d8363a95b4eae16f3828e..586852e347cfeb6e52d16e51b3f193e814036e81 100644
--- a/src/main/java/net/minecraft/world/item/MapItem.java
+++ b/src/main/java/net/minecraft/world/item/MapItem.java
@@ -73,7 +73,7 @@ public class MapItem extends ComplexItem {
public static Integer getMapId(ItemStack stack) {
CompoundTag nbttagcompound = stack.getTag();
- return nbttagcompound != null && nbttagcompound.contains("map", 99) ? nbttagcompound.getInt("map") : -1; // CraftBukkit - make new maps for no tag
+ return nbttagcompound != null && nbttagcompound.contains("map", 99) ? nbttagcompound.getInt("map") : null; // CraftBukkit - make new maps for no tag // Paper - don't return invalid ID
}
public static int createNewSavedData(Level world, int x, int z, int scale, boolean showIcons, boolean unlimitedTracking, ResourceKey<Level> dimension) {
diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaMap.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaMap.java
index 6f16f12b4cb9b53878416f1cea532548c418f518..e802623e2ef5fb8c423429335ee7dbabc45a1b74 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaMap.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaMap.java
@@ -138,6 +138,7 @@ class CraftMetaMap extends CraftMetaItem implements MapMeta {
@Override
public int getMapId() {
+ Preconditions.checkState(this.hasMapView(), "Item does not have map associated - check hasMapView() first!"); // Paper - more friendly message
return this.mapId;
}