def overlapping(pt_a, pt_b, w, h):
la, ta = pt_a
ra, ba = la + w, ta + h
lb, tb = pt_b
rb, bb = lb + w, tb + h
return range_overlap(la, ra, lb, rb) and range_overlap(ta, ba, tb, bb)
def overlap(box1, box2):
l1, t1, r1, b1 = box1
l2, t2, r2, b2 = box2
return range_overlap(l1, r1, l2, r2) and range_overlap(t1, b1, t2, b2)