Tell if a rect is overlapping with another

[sethmachine]

Hi,

I wrote this method to do it, but I think it's logic is wrong, faulty, and possible missing some checks.

I know it's wrong because it returned a false positive. But I'm a bit tired of evaluating all the statements. Can someone correct it?

    method isOverlapping takes real cminX, real cmaxX, real cminY, real cmaxY returns boolean
        if (cmaxX >= maxX or cminX <= minX) and (cminY > minY or cmaxY > minY) then
            return true
        elseif (cmaxY >= maxY or cminY <= minY) and (cminX < maxX or cmaxX < maxX) then
            return true
        else
            return false
        endif
    endmethod