Paper/patches/server/0631-ItemStack-repair-check-API.patch
Spottedleaf 01a13871de
Rewrite chunk system (#8177)
Patch documentation to come

Issues with the old system that are fixed now:
- World generation does not scale with cpu cores effectively.
- Relies on the main thread for scheduling and maintaining chunk state, dropping chunk load/generate rates at lower tps.
- Unreliable prioritisation of chunk gen/load calls that block the main thread.
- Shutdown logic is utterly unreliable, as it has to wait for all chunks to unload - is it guaranteed that the chunk system is in a state on shutdown that it can reliably do this? Watchdog shutdown also typically failed due to thread checks, which is now resolved.
- Saving of data is not unified (i.e can save chunk data without saving entity data, poses problems for desync if shutdown is really abnormal.
- Entities are not loaded with chunks. This caused quite a bit of headache for Chunk#getEntities API, but now the new chunk system loads entities with chunks so that they are ready whenever the chunk loads in. Effectively brings the behavior back to 1.16 era, but still storing entities in their own separate regionfiles.

The above list is not complete. The patch documentation will complete it.

New chunk system hard relies on starlight and dataconverter, and most importantly the new concurrent utilities in ConcurrentUtil.

Some of the old async chunk i/o interface (i.e the old file io thread reroutes _some_ calls to the new file io thread) is kept for plugin compat reasons. It will be removed in the next major version of minecraft.

The old legacy chunk system patches have been moved to the removed folder in case we need them again.
2022-09-26 01:02:51 -07:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sat, 15 May 2021 22:11:11 -0700
Subject: [PATCH] ItemStack repair check API
diff --git a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
index 7f747fbaa1da49ab930d2a9ff60200a445ca477c..0ebcadd6daf244cd9b6c943ca0a2baaafb3eba50 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
@@ -537,6 +537,14 @@ public final class CraftMagicNumbers implements UnsafeValues {
return io.papermc.paper.inventory.ItemRarity.values()[getItem(itemStack.getType()).getRarity(CraftItemStack.asNMSCopy(itemStack)).ordinal()];
}
+ @Override
+ public boolean isValidRepairItemStack(org.bukkit.inventory.ItemStack itemToBeRepaired, org.bukkit.inventory.ItemStack repairMaterial) {
+ if (!itemToBeRepaired.getType().isItem() || !repairMaterial.getType().isItem()) {
+ return false;
+ }
+ return CraftMagicNumbers.getItem(itemToBeRepaired.getType()).isValidRepairItem(CraftItemStack.asNMSCopy(itemToBeRepaired), CraftItemStack.asNMSCopy(repairMaterial));
+ }
+
@Override
public int getProtocolVersion() {
return net.minecraft.SharedConstants.getCurrentVersion().getProtocolVersion();
diff --git a/src/test/java/io/papermc/paper/util/ItemStackRepairCheckTest.java b/src/test/java/io/papermc/paper/util/ItemStackRepairCheckTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..8d9c9b3bd53d407391d4fcb7fc773153d1a7b402
--- /dev/null
+++ b/src/test/java/io/papermc/paper/util/ItemStackRepairCheckTest.java
@@ -0,0 +1,48 @@
+package io.papermc.paper.util;
+
+import org.bukkit.Material;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.support.AbstractTestingBase;
+import org.junit.Test;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertThrows;
+import static org.junit.Assert.assertTrue;
+
+public class ItemStackRepairCheckTest extends AbstractTestingBase {
+
+ @Test
+ public void testIsRepariableBy() {
+ ItemStack diamondPick = new ItemStack(Material.DIAMOND_PICKAXE);
+
+ assertTrue("diamond pick isn't repairable by a diamond", diamondPick.isRepairableBy(new ItemStack(Material.DIAMOND)));
+ }
+
+ @Test
+ public void testCanRepair() {
+ ItemStack diamond = new ItemStack(Material.DIAMOND);
+
+ assertTrue("diamond can't repair a diamond axe", diamond.canRepair(new ItemStack(Material.DIAMOND_AXE)));
+ }
+
+ @Test
+ public void testIsNotRepairableBy() {
+ ItemStack notDiamondPick = new ItemStack(Material.ACACIA_SAPLING);
+
+ assertFalse("acacia sapling is repairable by a diamond", notDiamondPick.isRepairableBy(new ItemStack(Material.DIAMOND)));
+ }
+
+ @Test
+ public void testCanNotRepair() {
+ ItemStack diamond = new ItemStack(Material.DIAMOND);
+
+ assertFalse("diamond can repair oak button", diamond.canRepair(new ItemStack(Material.OAK_BUTTON)));
+ }
+
+ @Test
+ public void testInvalidItem() {
+ ItemStack badItemStack = new ItemStack(Material.ACACIA_WALL_SIGN);
+
+ assertFalse("acacia wall sign is repairable by diamond", badItemStack.isRepairableBy(new ItemStack(Material.DIAMOND)));
+ }
+}