Optimize Space Wrapping

[xzela]

When an object (like a Ship) travels off the screen we want it to smoothly wrap around the other side. Currently, the ship can drift off the screen and then "appear" on the other side. This works but it could be much better.

See:

• http://gamedev.stackexchange.com/questions/21143/how-to-create-a-2d-region-where-sprites-are-automatically-wrapped
• http://gamedev.stackexchange.com/questions/26033/horizontal-wrapping-with-andengine