Cached the x,y tile offset value to avoid repeated computation (should speed up map drawing)
Cached the x,y tile offset value to avoid repeated computation (should speed up map drawing)

srbala/melonJS,Smoss/Enoru-eco,TukekeSoft/melonJS,MarkoIvanetic/melonJS,gopalindians/melonJS,rlugojr/melonJS,gopalindians/melonJS,Smoss/Enoru-eco,rlugojr/melonJS,melonjs/melonJS,TukekeSoft/melonJS,srbala/melonJS,srbala/melonJS,gopalindians/melonJS,melonjs/melonJS,TukekeSoft/melonJS,rlugojr/melonJS,MarkoIvanetic/melonJS