linkman2004 wrote:Your best bet would be to use "Is overlapping at offset" with a small offset, perhaps 1. This way you can have objects that aren't actual colliding or overlapping, but can determine their proximity and direction to one another.
Unnatural20 wrote:Overlapping and colliding do include 'touching,' as I'm sure you know. What do you want to implement it for?
linkman2004 wrote:@Unnatural20, on the contrary, the four directions should cover the entire perimeter of any object, regardless of shape. The result is an approximately one pixel thick border of sorts around the object in question. Similarly, using offsets of (0, 1), (0, -1), (1, 0), and (-1, 0) provides coverage just as thorough, though the shape would be ever so slightly different.