Paper/patches/server/0008-CB-fixes.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Fri, 25 Feb 2022 07:14:48 -0800
Subject: [PATCH] CB fixes

* Missing Level -> LevelStem generic in StructureCheck
  Need to use the right for injectDatafixingContext (Spottedleaf)

* Removed incorrect parent perm for `minecraft.debugstick.always` (Machine_Maker)

* Fixed method signature of Marker#addPassenger (Machine_Maker)

* Removed unneeded UOE in CustomWorldChunkManager (extends BiomeSource) (Machine_Maker)

* Honor Server#getLootTable method contract (Machine_Maker)

Co-authored-by: Spottedleaf <Spottedleaf@users.noreply.github.com>

diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index aac9513ff4d3d494860bd06607cf8af5e466fd5b..30fc222c384938fb4fdd4c6715295aeea57094bc 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -296,7 +296,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
 
         long l = minecraftserver.getWorldData().worldGenOptions().seed();
 
-        this.structureCheck = new StructureCheck(this.chunkSource.chunkScanner(), this.registryAccess(), minecraftserver.getStructureManager(), resourcekey, chunkgenerator, this.chunkSource.randomState(), this, chunkgenerator.getBiomeSource(), l, datafixer);
+        this.structureCheck = new StructureCheck(this.chunkSource.chunkScanner(), this.registryAccess(), minecraftserver.getStructureManager(), this.getTypeKey(), chunkgenerator, this.chunkSource.randomState(), this, chunkgenerator.getBiomeSource(), l, datafixer); // Paper - Fix missing CB diff
         this.structureManager = new StructureManager(this, this.serverLevelData.worldGenOptions(), this.structureCheck); // CraftBukkit
         if ((this.dimension() == Level.END && this.dimensionTypeRegistration().is(BuiltinDimensionTypes.END)) || env == org.bukkit.World.Environment.THE_END) { // CraftBukkit - Allow to create EnderDragonBattle in default and custom END
             this.dragonFight = new EndDragonFight(this, this.serverLevelData.worldGenOptions().seed(), this.serverLevelData.endDragonFightData()); // CraftBukkit
diff --git a/src/main/java/net/minecraft/world/entity/animal/camel/Camel.java b/src/main/java/net/minecraft/world/entity/animal/camel/Camel.java
index b2f37e3caf305f7f2c19c59848717bf73bd2ef5d..87c8460324ff2d2a14e1404fcfa3adb2d336a089 100644
--- a/src/main/java/net/minecraft/world/entity/animal/camel/Camel.java
+++ b/src/main/java/net/minecraft/world/entity/animal/camel/Camel.java
@@ -462,15 +462,9 @@ public class Camel extends AbstractHorse implements PlayerRideableJumping, Saddl
     }
 
     @Override
-    // CraftBukkit start - void -> boolean
-    protected boolean actuallyHurt(DamageSource damagesource, float f) {
-        boolean hurt = super.actuallyHurt(damagesource, f);
-        if (!hurt) {
-            return hurt;
-        }
-        // CraftBukkit end
+    protected boolean actuallyHurt(DamageSource damagesource, float f) { // Paper - change return type to boolean
         this.standUpInstantly();
-        return hurt; // CraftBukkit
+        return super.actuallyHurt(damagesource, f); // Paper - change return type to boolean
     }
 
     @Override
diff --git a/src/main/java/net/minecraft/world/level/levelgen/structure/StructureCheck.java b/src/main/java/net/minecraft/world/level/levelgen/structure/StructureCheck.java
index 161ad6ab1443b2ce33a2d7d91d189c855db0453b..15a9736a870055d639d03063c7cf67fd769fff36 100644
--- a/src/main/java/net/minecraft/world/level/levelgen/structure/StructureCheck.java
+++ b/src/main/java/net/minecraft/world/level/levelgen/structure/StructureCheck.java
@@ -43,7 +43,7 @@ public class StructureCheck {
     private final Registry<Biome> biomes;
     private final Registry<Structure> structureConfigs;
     private final StructureTemplateManager structureTemplateManager;
-    private final ResourceKey<Level> dimension;
+    private final ResourceKey<net.minecraft.world.level.dimension.LevelStem> dimension; // Paper - fix missing CB diff
     private final ChunkGenerator chunkGenerator;
     private final RandomState randomState;
     private final LevelHeightAccessor heightAccessor;
@@ -53,7 +53,7 @@ public class StructureCheck {
     private final Long2ObjectMap<Object2IntMap<Structure>> loadedChunks = new Long2ObjectOpenHashMap<>();
     private final Map<Structure, Long2BooleanMap> featureChecks = new HashMap<>();
 
-    public StructureCheck(ChunkScanAccess chunkIoWorker, RegistryAccess registryManager, StructureTemplateManager structureTemplateManager, ResourceKey<Level> worldKey, ChunkGenerator chunkGenerator, RandomState noiseConfig, LevelHeightAccessor world, BiomeSource biomeSource, long seed, DataFixer dataFixer) {
+    public StructureCheck(ChunkScanAccess chunkIoWorker, RegistryAccess registryManager, StructureTemplateManager structureTemplateManager, ResourceKey<net.minecraft.world.level.dimension.LevelStem> worldKey, ChunkGenerator chunkGenerator, RandomState noiseConfig, LevelHeightAccessor world, BiomeSource biomeSource, long seed, DataFixer dataFixer) { // Paper - fix missing CB diff
         this.storageAccess = chunkIoWorker;
         this.registryAccess = registryManager;
         this.structureTemplateManager = structureTemplateManager;
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftLootTable.java b/src/main/java/org/bukkit/craftbukkit/CraftLootTable.java
index 809fdf2da78293391aa5c60c04f4ad652b152eec..955b0abd4019fc45df84719eee6bf413e59d941a 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftLootTable.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftLootTable.java
@@ -172,4 +172,11 @@ public class CraftLootTable implements org.bukkit.loot.LootTable {
         org.bukkit.loot.LootTable table = (org.bukkit.loot.LootTable) obj;
         return table.getKey().equals(this.getKey());
     }
+
+    // Paper start - satisfy equals/hashCode contract
+    @Override
+    public int hashCode() {
+        return java.util.Objects.hash(key);
+    }
+    // Paper end
 }
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index cd39509d383c47319b71797e5d1df41c2b8c7ab6..2cc1871c81056acd0582184bb684e672d14d3b6f 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -2466,7 +2466,11 @@ public final class CraftServer implements Server {
         Preconditions.checkArgument(key != null, "NamespacedKey key cannot be null");
 
         LootDataManager registry = this.getServer().getLootData();
-        return new CraftLootTable(key, registry.getLootTable(CraftNamespacedKey.toMinecraft(key)));
+        // Paper start - honor method contract
+        final ResourceLocation lootTableKey = CraftNamespacedKey.toMinecraft(key);
+        final Optional<net.minecraft.world.level.storage.loot.LootTable> table = registry.getElementOptional(net.minecraft.world.level.storage.loot.LootDataType.TABLE, lootTableKey);
+        return table.map(lootTable -> new CraftLootTable(key, lootTable)).orElse(null);
+        // Paper end
     }
 
     @Override
diff --git a/src/main/java/org/bukkit/craftbukkit/Main.java b/src/main/java/org/bukkit/craftbukkit/Main.java
index 19725db76dc3a12356993aed7edba507b52fe4d7..c2e1376bb06442297bda806ed8dc92f10cbbdd9a 100644
--- a/src/main/java/org/bukkit/craftbukkit/Main.java
+++ b/src/main/java/org/bukkit/craftbukkit/Main.java
@@ -122,6 +122,7 @@ public class Main {
 
                 this.acceptsAll(Main.asList("forceUpgrade"), "Whether to force a world upgrade");
                 this.acceptsAll(Main.asList("eraseCache"), "Whether to force cache erase during world upgrade");
+                this.accepts("safeMode", "Loads level with vanilla datapack only"); // Paper
                 this.acceptsAll(Main.asList("nogui"), "Disables the graphical console");
 
                 this.acceptsAll(Main.asList("nojline"), "Disables jline and emulates the vanilla console");
diff --git a/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java b/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java
index 905adf97c0d1f0d1c774a6835a5dffcfea884e58..c017ce2ca1bc535795c958a2e509af2adf88efa9 100644
--- a/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java
+++ b/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java
@@ -26,6 +26,7 @@ import org.bukkit.scheduler.BukkitWorker;
 
 /**
  * The fundamental concepts for this implementation:
+ * <ul>
  * <li>Main thread owns {@link #head} and {@link #currentTick}, but it may be read from any thread</li>
  * <li>Main thread exclusively controls {@link #temp} and {@link #pending}.
  *     They are never to be accessed outside of the main thread; alternatives exist to prevent locking.</li>
@@ -41,6 +42,7 @@ import org.bukkit.scheduler.BukkitWorker;
  * <li>Sync tasks are only to be removed from runners on the main thread when coupled with a removal from pending and temp.</li>
  * <li>Most of the design in this scheduler relies on queuing special tasks to perform any data changes on the main thread.
  *     When executed from inside a synchronous method, the scheduler will be updated before next execution by virtue of the frequent {@link #parsePending()} calls.</li>
+ * </ul>
  */
 public class CraftScheduler implements BukkitScheduler {
 
diff --git a/src/main/java/org/bukkit/craftbukkit/util/permissions/CraftDefaultPermissions.java b/src/main/java/org/bukkit/craftbukkit/util/permissions/CraftDefaultPermissions.java
index 5ac25dab93fd4c9e9533c80d1ca3d93446d7a365..245ad120a36b6defca7e6889faae1ca5fc33d0c7 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/permissions/CraftDefaultPermissions.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/permissions/CraftDefaultPermissions.java
@@ -15,7 +15,7 @@ public final class CraftDefaultPermissions {
         DefaultPermissions.registerPermission(CraftDefaultPermissions.ROOT + ".nbt.place", "Gives the user the ability to place restricted blocks with NBT in creative", org.bukkit.permissions.PermissionDefault.OP, parent);
         DefaultPermissions.registerPermission(CraftDefaultPermissions.ROOT + ".nbt.copy", "Gives the user the ability to copy NBT in creative", org.bukkit.permissions.PermissionDefault.TRUE, parent);
         DefaultPermissions.registerPermission(CraftDefaultPermissions.ROOT + ".debugstick", "Gives the user the ability to use the debug stick in creative", org.bukkit.permissions.PermissionDefault.OP, parent);
-        DefaultPermissions.registerPermission(CraftDefaultPermissions.ROOT + ".debugstick.always", "Gives the user the ability to use the debug stick in all game modes", org.bukkit.permissions.PermissionDefault.FALSE, parent);
+        DefaultPermissions.registerPermission(CraftDefaultPermissions.ROOT + ".debugstick.always", "Gives the user the ability to use the debug stick in all game modes", org.bukkit.permissions.PermissionDefault.FALSE/* , parent */); // Paper - should not have this parent, as it's not a "vanilla" utility
         // Spigot end
         parent.recalculatePermissibles();
     }