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Prevent overfilled bundles from duplicating items (#9633)

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Bundles compute the amount to remove from an item based on the formula
(64 - currentWeight) / itemWeight. An overfilled bundle however, with a
currentWeight of > 64 ends up with a negative removal amount for the
item.

This can cause duplication issues on craftbukkit inventory
implementations as they do currently not gracefully handle negative
removal amounts in their remove methods.
This commit is contained in:
Bjarne Koll 2023-08-22 11:57:44 +02:00 committed by GitHub
parent a712766995
commit 3716832282
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 25 additions and 0 deletions
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patches/server/0872-Fix-a-bunch-of-vanilla-bugs.patch
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@ -54,6 +54,9 @@ https://bugs.mojang.com/browse/MC-264285
https://bugs.mojang.com/browse/MC-84789
Fix wild wolves not considering bones interesting
https://bugs.mojang.com/browse/MC-225381
Fix overfilled bundles duplicating items / being filled with air
Co-authored-by: William Blake Galbreath <blake.galbreath@gmail.com>
diff --git a/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java b/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java
@ -316,6 +319,28 @@ index 380afb885e85e4cf80e746d217033345a7514443..41457c9f27b18fa2734a6cca297ec518
if (!raid.hasFirstWaveSpawned()) {
player.awardStat(Stats.RAID_TRIGGER);
CriteriaTriggers.BAD_OMEN.trigger(player);
diff --git a/src/main/java/net/minecraft/world/item/BundleItem.java b/src/main/java/net/minecraft/world/item/BundleItem.java
index 10b0720ce7eed58fa3cd8c8051efa6225f7d73e1..ac0bc87f60c4e1562d1301522183e449558d42f8 100644
--- a/src/main/java/net/minecraft/world/item/BundleItem.java
+++ b/src/main/java/net/minecraft/world/item/BundleItem.java
@@ -52,7 +52,7 @@ public class BundleItem extends Item {
});
} else if (itemStack.getItem().canFitInsideContainerItems()) {
int i = (64 - getContentWeight(stack)) / getWeight(itemStack);
- int j = add(stack, slot.safeTake(itemStack.getCount(), i, player));
+ int j = add(stack, slot.safeTake(itemStack.getCount(), Math.max(0, i), player)); // Paper - prevent item addition on overfilled bundles - safeTake will yield EMPTY for amount == 0.
if (j > 0) {
this.playInsertSound(player);
}
@@ -121,7 +121,7 @@ public class BundleItem extends Item {
int i = getContentWeight(bundle);
int j = getWeight(stack);
int k = Math.min(stack.getCount(), (64 - i) / j);
- if (k == 0) {
+ if (k <= 0) { // Paper - prevent item addition on overfilled bundles
return 0;
} else {
ListTag listTag = compoundTag.getList("Items", 10);
diff --git a/src/main/java/net/minecraft/world/item/SaddleItem.java b/src/main/java/net/minecraft/world/item/SaddleItem.java
index 11e8f2bf261abcb75d4dd011702c8f396e9f5be4..7234010d81078d357ab9bca422e44864a9e269bb 100644
--- a/src/main/java/net/minecraft/world/item/SaddleItem.java