diff --git a/class.js b/class.js
index 32a3f88..4ae95fd 100644
--- a/class.js
+++ b/class.js
@@ -1,7 +1,8 @@
 const mapWidth = 210.;
 const mapHeith = 100.;
-const playerSize = 10.;
-
+const playerSize = 50.;
+const playerSpeed=5.;
+const halfSqrtTwo=sqrt(2.)/2.;
 class Player
 {
     constructor (id,x,y,name)
@@ -34,7 +35,60 @@ class Player
         }
     }
 
+    retrieveServerInfo(id,x,y,dir)
+    {
+        if(this.id==id)
+        {
+            this.x=x;
+            this.y=y;
+            this.dir=dir;
+            if(dir!=0)
+                this.visibleDir=dir;
+        }
+    }
 
+    update(squares,circles)//update position
+    {
+        if(this.dir==0)
+            return;
+
+        let dx,dy;
+        switch(this.dir)
+        {
+            case 1: dx=0.;dy=-playerSpeed;break;
+            case 2: dx=halfSqrtTwo*playerSpeed;dy=-halfSqrtTwo*playerSpeed;break;
+            case 3: dx=1.;dy=0.;break;
+            case 4: dx=halfSqrtTwo*playerSpeed;dy=halfSqrtTwo*playerSpeed;break;
+            case 5: dx=0.;dy=playerSpeed;break;
+            case 6: dx=-halfSqrtTwo*playerSpeed;dy=halfSqrtTwo*playerSpeed;break;
+            case 7: dx=-playerSpeed;dy=0.;break;
+            case 8: dx=-halfSqrtTwo*playerSpeed;dy=-halfSqrtTwo*playerSpeed;break;
+            default:
+        }
+        this.x += dx;
+        this.y += dy;
+
+        for(let square in squares)
+        {
+            if(square.collide(this))
+            {
+                this.x-=dx;
+                this.y-=dy;
+                this.dir=0;
+                return;
+            }
+        }
+        for(let circle in circles)
+        {
+            if(circle.collide(this))
+            {
+                this.x-=dx;
+                this.y-=dy;
+                this.dir=0;
+                return;
+            }
+        }
+    }
 
     get angle()
     {