PaperMC/Spigot-Server-Patches/0431-Seed-based-feature-search.patch
Aikar 2f34301581
Updated Upstream (Bukkit/CraftBukkit)
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
7361a62e SPIGOT-5641: Add Block.getDrops(ItemStack, Entity)
1dc91b15 Add specific notes about what is not API
2b05ef88 #484: Allow statistics to be accessed for offline players

CraftBukkit Changes:
f7d6ad53 SPIGOT-5603: Use LootContext#lootingModifier in CraftLootTable
5838285d SPIGOT-5657: BlockPlaceEvent not cancelling for tripwire hooks
f325b9be SPIGOT-5641: Add Block.getDrops(ItemStack, Entity)
e25a2272 Fix some formatting in CraftHumanEntity
498540e0 Add Merchant slot delegate
b2de47d5 SPIGOT-5621: Add missing container types for opening InventoryView
aa3a2f27 #645: Allow statistics to be accessed for offline players
2122c0b1 #649: CraftBell should implement Bell
2020-04-08 03:49:15 -04:00

113 lines
6.1 KiB
Diff

From fdb38218344d17d0c1e95241e8cda505fcdc9b39 Mon Sep 17 00:00:00 2001
From: Phoenix616 <mail@moep.tv>
Date: Mon, 13 Jan 2020 15:40:32 +0100
Subject: [PATCH] Seed based feature search
This fixes the issue where the server will load surrounding chunks up to
a radius of 100 chunks in order to search for features e.g. when running
the /locate command or for treasure maps (issue #2312).
This is done by using the same seed checking functionality that is used
by the server when generating these features before actually attempting
to load the chunk to check if a feature is available in it.
The only downside of this is that it breaks once the seed or generator
changes but this should usually not happen. A config option to disable
this improvement is added though in case that should ever be necessary.
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 3b8488d3ff..bce502181f 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -359,6 +359,12 @@ public class PaperWorldConfig {
}
}
+ public boolean seedBasedFeatureSearch = true;
+ private void seedBasedFeatureSearch() {
+ seedBasedFeatureSearch = getBoolean("seed-based-feature-search", seedBasedFeatureSearch);
+ log("Feature search is based on seed: " + seedBasedFeatureSearch);
+ }
+
public int maxCollisionsPerEntity;
private void maxEntityCollision() {
maxCollisionsPerEntity = getInt( "max-entity-collisions", this.spigotConfig.getInt("max-entity-collisions", 8) );
diff --git a/src/main/java/net/minecraft/server/BiomeManager.java b/src/main/java/net/minecraft/server/BiomeManager.java
index e96f544f12..68423645df 100644
--- a/src/main/java/net/minecraft/server/BiomeManager.java
+++ b/src/main/java/net/minecraft/server/BiomeManager.java
@@ -12,10 +12,12 @@ public class BiomeManager {
this.c = genlayerzoomer;
}
+ public BiomeManager withProvider(WorldChunkManager worldchunkmanager) { return a(worldchunkmanager); } // Paper - OBFHELPER
public BiomeManager a(WorldChunkManager worldchunkmanager) {
return new BiomeManager(worldchunkmanager, this.b, this.c);
}
+ public BiomeBase getBiome(BlockPosition blockposition) { return a(blockposition); } // Paper - OBFHELPER
public BiomeBase a(BlockPosition blockposition) {
return this.c.a(this.b, blockposition.getX(), blockposition.getY(), blockposition.getZ(), this.a);
}
diff --git a/src/main/java/net/minecraft/server/ChunkCoordIntPair.java b/src/main/java/net/minecraft/server/ChunkCoordIntPair.java
index f2a19acd84..09f1308b0d 100644
--- a/src/main/java/net/minecraft/server/ChunkCoordIntPair.java
+++ b/src/main/java/net/minecraft/server/ChunkCoordIntPair.java
@@ -64,10 +64,12 @@ public class ChunkCoordIntPair {
}
}
+ public int getBlockX() { return d(); } // Paper - OBFHELPER
public int d() {
return this.x << 4;
}
+ public int getBlockZ() { return e(); } // Paper - OBFHELPER
public int e() {
return this.z << 4;
}
diff --git a/src/main/java/net/minecraft/server/StructureGenerator.java b/src/main/java/net/minecraft/server/StructureGenerator.java
index e8ce2ecf23..acfe732af5 100644
--- a/src/main/java/net/minecraft/server/StructureGenerator.java
+++ b/src/main/java/net/minecraft/server/StructureGenerator.java
@@ -109,6 +109,15 @@ public abstract class StructureGenerator<C extends WorldGenFeatureConfiguration>
if (flag1 || flag2) {
ChunkCoordIntPair chunkcoordintpair = this.a(chunkgenerator, seededrandom, j, k, i1, j1);
if (!world.getWorldBorder().isChunkInBounds(chunkcoordintpair.x, chunkcoordintpair.z)) { continue; } // Paper
+ // Paper start - seed based feature search
+ if (world.paperConfig.seedBasedFeatureSearch) {
+ BiomeManager biomeManager = world.getBiomeManager().withProvider(chunkgenerator.getWorldChunkManager());
+ BiomeBase biomeBase = biomeManager.getBiome(new BlockPosition(chunkcoordintpair.getBlockX() + 9, 0, chunkcoordintpair.getBlockZ() + 9));
+ if (!shouldGenerate(biomeManager, chunkgenerator, seededrandom, chunkcoordintpair.x, chunkcoordintpair.z, biomeBase)) {
+ continue;
+ }
+ }
+ // Paper end
StructureStart structurestart = world.getChunkAt(chunkcoordintpair.x, chunkcoordintpair.z, ChunkStatus.STRUCTURE_STARTS).a(this.b());
if (structurestart != null && structurestart.e()) {
@@ -165,6 +174,7 @@ public abstract class StructureGenerator<C extends WorldGenFeatureConfiguration>
return new ChunkCoordIntPair(i + k, j + l);
}
+ public boolean shouldGenerate(BiomeManager biomemanager, ChunkGenerator<?> chunkgenerator, Random random, int chunkX, int chunkZ, BiomeBase biomebase) { return a(biomemanager, chunkgenerator, random, chunkX, chunkZ, biomebase); } // Paper - OBFHELPER
public abstract boolean a(BiomeManager biomemanager, ChunkGenerator<?> chunkgenerator, Random random, int i, int j, BiomeBase biomebase);
public abstract StructureGenerator.a a();
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index 48c75af827..79d8c7ba31 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -1563,8 +1563,8 @@ public abstract class World implements GeneratorAccess, AutoCloseable {
return this.methodProfiler;
}
- @Override
- public BiomeManager d() {
+ public BiomeManager getBiomeManager() { return d(); } // Paper - OBFHELPER
+ @Override public BiomeManager d() {
return this.biomeManager;
}
}
--
2.25.1