From 69cbe7d22255ad9786ecbf698c3cb2d269596b16 Mon Sep 17 00:00:00 2001
From: afforess <afforess@gmail.com>
Date: Mon, 21 Mar 2011 16:31:15 -0400
Subject: [PATCH] Allow Vehicle Motion to save properly

---
 .../java/net/minecraft/server/Entity.java     | 21 ++++++++++++-------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index 303fa6c55..54cbe9ccd 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -822,17 +822,22 @@ public abstract class Entity {
         this.motX = ((NBTTagDouble) nbttaglist1.a(0)).a;
         this.motY = ((NBTTagDouble) nbttaglist1.a(1)).a;
         this.motZ = ((NBTTagDouble) nbttaglist1.a(2)).a;
-        if (Math.abs(this.motX) > 10.0D) {
-            this.motX = 0.0D;
-        }
+        //CraftBukkit Start
+        //Exempt Vehicles from notch's sanity check
+        if (!(this.getBukkitEntity() instanceof CraftVehicle)) {
+            if (Math.abs(this.motX) > 10.0D) {
+                this.motX = 0.0D;
+            }
 
-        if (Math.abs(this.motY) > 10.0D) {
-            this.motY = 0.0D;
-        }
+            if (Math.abs(this.motY) > 10.0D) {
+                this.motY = 0.0D;
+            }
 
-        if (Math.abs(this.motZ) > 10.0D) {
-            this.motZ = 0.0D;
+            if (Math.abs(this.motZ) > 10.0D) {
+                this.motZ = 0.0D;
+            }
         }
+        //CraftBukkit End
 
         this.lastX = this.bi = this.locX = ((NBTTagDouble) nbttaglist.a(0)).a;
         this.lastY = this.bj = this.locY = ((NBTTagDouble) nbttaglist.a(1)).a;