From ec8ca295e21f33a1f4c8ac1500c79fc1a4efa543 Mon Sep 17 00:00:00 2001
From: md_5 <git@md-5.net>
Date: Sat, 23 Mar 2013 09:52:41 +1100
Subject: [PATCH] View Distance

This commit allows the user to select per world view distances.

diff --git a/src/main/java/net/minecraft/server/level/WorldServer.java b/src/main/java/net/minecraft/server/level/WorldServer.java
index f07e8247e3..f500d56f8e 100644
--- a/src/main/java/net/minecraft/server/level/WorldServer.java
+++ b/src/main/java/net/minecraft/server/level/WorldServer.java
@@ -288,8 +288,8 @@ public class WorldServer extends World implements GeneratorAccessSeed {
 
         this.entityManager = new PersistentEntitySectionManager<>(Entity.class, new WorldServer.a(), entitypersistentstorage);
         StructureTemplateManager structuretemplatemanager = minecraftserver.getStructureManager();
-        int j = minecraftserver.getPlayerList().getViewDistance();
-        int k = minecraftserver.getPlayerList().getSimulationDistance();
+        int j = this.spigotConfig.viewDistance; // Spigot
+        int k = this.spigotConfig.simulationDistance; // Spigot
         PersistentEntitySectionManager persistententitysectionmanager = this.entityManager;
 
         Objects.requireNonNull(this.entityManager);
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index 2893affc38..9e6fc1658a 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -236,7 +236,8 @@ public abstract class PlayerList {
         boolean flag1 = gamerules.getBoolean(GameRules.RULE_REDUCEDDEBUGINFO);
         boolean flag2 = gamerules.getBoolean(GameRules.RULE_LIMITED_CRAFTING);
 
-        playerconnection.send(new PacketPlayOutLogin(entityplayer.getId(), worlddata.isHardcore(), this.server.levelKeys(), this.getMaxPlayers(), this.viewDistance, this.simulationDistance, flag1, !flag, flag2, entityplayer.createCommonSpawnInfo(worldserver1), this.server.enforceSecureProfile()));
+        // Spigot - view distance
+        playerconnection.send(new PacketPlayOutLogin(entityplayer.getId(), worlddata.isHardcore(), this.server.levelKeys(), this.getMaxPlayers(), worldserver1.spigotConfig.viewDistance, worldserver1.spigotConfig.simulationDistance, flag1, !flag, flag2, entityplayer.createCommonSpawnInfo(worldserver1), this.server.enforceSecureProfile()));
         entityplayer.getBukkitEntity().sendSupportedChannels(); // CraftBukkit
         playerconnection.send(new PacketPlayOutServerDifficulty(worlddata.getDifficulty(), worlddata.isDifficultyLocked()));
         playerconnection.send(new PacketPlayOutAbilities(entityplayer.getAbilities()));
@@ -723,6 +724,8 @@ public abstract class PlayerList {
         WorldData worlddata = worldserver1.getLevelData();
 
         entityplayer1.connection.send(new PacketPlayOutRespawn(entityplayer1.createCommonSpawnInfo(worldserver1), (byte) i));
+        entityplayer1.connection.send(new PacketPlayOutViewDistance(worldserver1.spigotConfig.viewDistance)); // Spigot
+        entityplayer1.connection.send(new ClientboundSetSimulationDistancePacket(worldserver1.spigotConfig.simulationDistance)); // Spigot
         entityplayer1.connection.teleport(CraftLocation.toBukkit(entityplayer1.position(), worldserver1.getWorld(), entityplayer1.getYRot(), entityplayer1.getXRot())); // CraftBukkit
         entityplayer1.connection.send(new PacketPlayOutSpawnPosition(worldserver.getSharedSpawnPos(), worldserver.getSharedSpawnAngle()));
         entityplayer1.connection.send(new PacketPlayOutServerDifficulty(worlddata.getDifficulty(), worlddata.isDifficultyLocked()));
diff --git a/src/main/java/org/spigotmc/SpigotWorldConfig.java b/src/main/java/org/spigotmc/SpigotWorldConfig.java
index 5ff085b9e6..acaf903011 100644
--- a/src/main/java/org/spigotmc/SpigotWorldConfig.java
+++ b/src/main/java/org/spigotmc/SpigotWorldConfig.java
@@ -148,4 +148,36 @@ public class SpigotWorldConfig
         expMerge = getDouble("merge-radius.exp", 3.0 );
         log( "Experience Merge Radius: " + expMerge );
     }
+
+    public int viewDistance;
+    private void viewDistance()
+    {
+        if ( SpigotConfig.version < 12 )
+        {
+            set( "view-distance", null );
+        }
+
+        Object viewDistanceObject = get( "view-distance", "default" );
+        viewDistance = ( viewDistanceObject ) instanceof Number ? ( (Number) viewDistanceObject ).intValue() : -1;
+        if ( viewDistance <= 0 )
+        {
+            viewDistance = Bukkit.getViewDistance();
+        }
+
+        viewDistance = Math.max( Math.min( viewDistance, 32 ), 3 );
+        log( "View Distance: " + viewDistance );
+    }
+
+    public int simulationDistance;
+    private void simulationDistance()
+    {
+        Object simulationDistanceObject = get( "simulation-distance", "default" );
+        simulationDistance = ( simulationDistanceObject ) instanceof Number ? ( (Number) simulationDistanceObject ).intValue() : -1;
+        if ( simulationDistance <= 0 )
+        {
+            simulationDistance = Bukkit.getSimulationDistance();
+        }
+
+        log( "Simulation Distance: " + simulationDistance );
+    }
 }
-- 
2.45.2