Collision of an avatar with a quad

[Frank Verberne]

I don't really know what the difference is, but what my task is that a participant controlling an avatar has to touch several quads. Each quad has a bounding box around it, and every time the avatar touches the quad (i.e. enters the bounding box) the program checks if the number is the lowest of the 6 quads. If it is, the quad will turn green, otherwise the quad wil become red for a few seconds and then restore itself. This task is done multiple times.

So I think that I only need to know when the avatar (no matter which part of the avatar) touches the quads. Hope that clarifies the situation.