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 82435da47f0f7db73556310f84dc538a7c5f0809..ebae711991a3ae35e35c2cffa8d928677c205492 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -298,7 +298,7 @@ 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/Marker.java b/src/main/java/net/minecraft/world/entity/Marker.java
index 299d0755b782a26af6c6acc00e3d8ab0269348a9..70791a052c1ec8f41d7f1e65c33eee4f0b1b53b2 100644
--- a/src/main/java/net/minecraft/world/entity/Marker.java
+++ b/src/main/java/net/minecraft/world/entity/Marker.java
@@ -49,8 +49,8 @@ public class Marker extends Entity {
     }
 
     @Override
-    protected void addPassenger(Entity passenger) {
-        throw new IllegalStateException("Should never addPassenger without checking couldAcceptPassenger()");
+    protected boolean addPassenger(Entity passenger) { // Paper - fix return type
+        return false; // Paper
     }
 
     @Override
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 40cdff9eaa1e78e02060d970e477d96f960cfed3..c853123c451c41beb42209c7edc14a5dcffa2a50 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
@@ -446,9 +446,9 @@ public class Camel extends AbstractHorse implements PlayerRideableJumping, Rider
     }
 
     @Override
-    protected void actuallyHurt(DamageSource source, float amount) {
+    protected boolean damageEntity0(DamageSource source, float amount) { // Paper - fix CB method rename issue
         this.standUpInstantly();
-        super.actuallyHurt(source, amount);
+        return super.damageEntity0(source, amount); // Paper - fix CB method rename issue
     }
 
     @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/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index 9c82e4d2f5676808bb57c5e7dd19d0e7615ca884..9874d0d3ae16e79f2598d9c1f93a9b7cc40f56b0 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -2324,7 +2324,13 @@ public final class CraftServer implements Server {
         Validate.notNull(key, "NamespacedKey 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);
+        if (registry.getLootTable(lootTableKey) == net.minecraft.world.level.storage.loot.LootTable.EMPTY) {
+            return null;
+        }
+        return new CraftLootTable(key, registry.getLootTable(lootTableKey));
+        // Paper end
     }
 
     @Override
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 c93eec7a81ed83dc9190417dd51acb2780d3b60d..70d3949616c63038ad3e9bd1069db5ea2fb3f3b8 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();
     }