Paper/CraftBukkit-Patches/0004-Teleport-passenger-vehicle-with-player.patch

From 979777557af4917ab674148c1ea2a4a5421f015f Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 17 May 2014 02:12:39 -0500
Subject: [PATCH] Teleport passenger/vehicle with player


diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index a5d7e3d..9788ff5 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -38,6 +38,13 @@ public abstract class Entity {
     static boolean isLevelAtLeast(NBTTagCompound tag, int level) {
         return tag.hasKey("Bukkit.updateLevel") && tag.getInt("Bukkit.updateLevel") >= level;
     }
+    // PaperSpigot start
+    public void retrack() {
+        final EntityTracker entityTracker = ((WorldServer) world).getTracker();
+        entityTracker.untrackEntity(this);
+        entityTracker.track(this);
+    }
+    // PaperSpigot end
     // CraftBukkit end
 
     private static int entityCount;
@@ -1849,7 +1856,7 @@ public abstract class Entity {
             // minecraftserver.getPlayerList().a(this, j, worldserver, worldserver1);
             boolean before = worldserver1.chunkProviderServer.forceChunkLoad;
             worldserver1.chunkProviderServer.forceChunkLoad = true;
-            worldserver1.getMinecraftServer().getPlayerList().repositionEntity(this, exit, portal);
+            //worldserver1.getMinecraftServer().getPlayerList().repositionEntity(this, exit, portal); // PaperSpigot - no... this entity is dead
             worldserver1.chunkProviderServer.forceChunkLoad = before;
             // CraftBukkit end
             this.world.methodProfiler.c("reloading");
@@ -1857,6 +1864,10 @@ public abstract class Entity {
 
             if (entity != null) {
                 entity.a(this, true);
+                // PaperSpigot start - move entity to new location
+                exit.getBlock(); // force load
+                entity.setLocation(exit.getX(), exit.getY(), exit.getZ(), exit.getYaw(), exit.getPitch());
+                // PaperSpigot end
                 /* CraftBukkit start - We need to do this...
                 if (j == 1 && i == 1) {
                     ChunkCoordinates chunkcoordinates = worldserver1.getSpawn();
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index a88aec4..1f9c8a1 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -477,12 +477,33 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
         if (event.isCancelled()) {
             return false;
         }
-        
+
+        // PaperSpigot start
         // Spigot Start
-        eject();
-        leaveVehicle();
+        //eject();
+        //leaveVehicle();
         // Spigot End
 
+        // PaperSpigot start
+        Entity vehicle = entity.vehicle;
+        Entity passenger = entity.passenger;
+        if (vehicle != null) {
+            vehicle.passenger = null;
+            vehicle.teleportTo(location, false);
+            vehicle = vehicle.getBukkitEntity().getHandle();
+            entity.vehicle = vehicle;
+            vehicle.passenger = entity;
+        }
+
+        if (passenger != null) {
+            passenger.vehicle = null;
+            passenger.teleportTo(location, false);
+            passenger = passenger.getBukkitEntity().getHandle();
+            entity.passenger = passenger;
+            entity.vehicle = entity;
+        }
+        // PaperSpigot end
+
         // Update the From Location
         from = event.getFrom();
         // Grab the new To Location dependent on whether the event was cancelled.
@@ -502,6 +523,16 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
         } else {
             server.getHandle().moveToWorld(entity, toWorld.dimension, true, to, true);
         }
+
+        // PaperSpigot start
+        if (vehicle != null) {
+            vehicle.retrack();
+            //entity.retrack();
+        }
+        if (passenger != null) {
+            passenger.retrack();
+        }
+        // PaperSpigot end
         return true;
     }
 
-- 
1.9.1