Help with snapping

[Gene]

Hello, Im trying to make a program with a square cursor, which is sized 32*32, I would like for it to snap to the background grid of 32*32 Tiles, as in, if I move my mouse inside the 32*32 square, it wont move, but If I move it outside to the left, the square cursor will snap to the gridsquare to the left of the one it is currently in.

Thank You

[Gene]

Never Mind, Fixed it now