From dbd2649b919e5d729f8a1197d81b5e60412c5f9b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=83=91=E6=B5=A9=E4=B9=90?= <zhenghaole1990@126.com>
Date: Wed, 6 Jan 2016 23:40:30 +0800
Subject: [PATCH] =?UTF-8?q?=E5=87=8F=E5=B0=91=E4=BB=A3=E7=A0=81=E9=87=8F?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 index.js | 44 ++++++++------------------------------------
 1 file changed, 8 insertions(+), 36 deletions(-)

diff --git a/index.js b/index.js
index ff55bd5..5db12d8 100644
--- a/index.js
+++ b/index.js
@@ -231,46 +231,18 @@
 				var coord = this.coord;
 				if(!coord.offset){
 					if(typeof this.control.orientation!='undefined'){
-						var x = coord.x+_COS[this.control.orientation];
-						var y = coord.y+_SIN[this.control.orientation];
-						if(!map.get(x,y)){
+						if(!map.get(coord.x+_COS[this.control.orientation],coord.y+_SIN[this.control.orientation])){
 							this.orientation = this.control.orientation;
 						}	
 					}
 					this.control = {};
-					switch(this.orientation){
-						case 0:
-							var value = map.get(coord.x+1,coord.y);
-							if(value==0){
-								this.x+=this.speed;
-							}else if(value<0){
-								this.x -= map.size*(map.x_length-1);
-							}
-							break;
-						case 1:
-							var value = map.get(coord.x,coord.y+1);
-							if(value==0){
-								this.y+=this.speed;
-							}else if(value<0){
-								this.y -= map.size*(map.y_length-1);
-							}
-							break;
-						case 2:
-							var value = map.get(coord.x-1,coord.y);
-							if(value==0){
-								this.x-=this.speed;
-							}else if(value<0){
-								this.x += map.size*(map.x_length-1);
-							}
-							break;
-						case 3:
-							var value = map.get(coord.x,coord.y-1);
-							if(value==0){
-								this.y-=this.speed;
-							}else if(value<0){
-								this.y += map.size*(map.y_length-1);
-							}
-							break;
+					var value = map.get(coord.x+_COS[this.orientation],coord.y+_SIN[this.orientation]);
+					if(value==0){
+						this.x += this.speed*_COS[this.orientation];
+						this.y += this.speed*_SIN[this.orientation];
+					}else if(value<0){
+						this.x -= map.size*(map.x_length-1)*_SIN[this.orientation];
+						this.y -= map.size*(map.y_length-1)*_COS[this.orientation];
 					}
 				}else{
 					this.x += this.speed*_COS[this.orientation];