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31 lines
1.9 KiB
Diff
31 lines
1.9 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Shane Freeder <theboyetronic@gmail.com>
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Date: Sun, 1 Aug 2021 09:49:06 +0100
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Subject: [PATCH] Fix incosistency issue with empty map items in CB
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diff --git a/src/main/java/net/minecraft/world/item/MapItem.java b/src/main/java/net/minecraft/world/item/MapItem.java
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index 75b110c6fb685390306fe3b8504aeea9bd6deedd..d3c29e6bf8b3c2dd628809177dac50220a7de415 100644
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--- a/src/main/java/net/minecraft/world/item/MapItem.java
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+++ b/src/main/java/net/minecraft/world/item/MapItem.java
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@@ -73,7 +73,7 @@ public class MapItem extends ComplexItem {
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public static Integer getMapId(ItemStack stack) {
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CompoundTag nbttagcompound = stack.getTag();
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- return nbttagcompound != null && nbttagcompound.contains("map", 99) ? nbttagcompound.getInt("map") : -1; // CraftBukkit - make new maps for no tag
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+ return nbttagcompound != null && nbttagcompound.contains("map", 99) ? nbttagcompound.getInt("map") : null; // CraftBukkit - make new maps for no tag // Paper - don't return invalid ID
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}
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public static int createNewSavedData(Level world, int x, int z, int scale, boolean showIcons, boolean unlimitedTracking, ResourceKey<Level> dimension) {
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diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaMap.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaMap.java
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index 70b365afc40f11d4da3aea2b5d6b2467f517deac..a74ea06e3a190916527ab2c85d13f1e34c08d50a 100644
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--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaMap.java
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+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaMap.java
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@@ -133,6 +133,7 @@ class CraftMetaMap extends CraftMetaItem implements MapMeta {
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@Override
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public int getMapId() {
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+ Preconditions.checkState(this.hasMapView(), "Item does not have map associated - check hasMapView() first!"); // Paper - more friendly message
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return this.mapId;
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}
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