blender_bb_collision.py

import bpy, bmesh
from mathutils import Vector

'''
For simple situations where boxes are not rotated and you only need to detect overlap in bounding boxes
'''

def boundingBoxCollide(c1, c2):
    bb = [c1.matrix_world * Vector(corner) for corner in c1.bound_box]
    bb2 = [c2.matrix_world * Vector(corner2) for corner2 in c2.bound_box]
    l1 = (bb[0]+bb[6])/2
    l2 = (bb2[0]+bb2[6])/2
    d1 = c1.dimensions
    d2 = c2.dimensions
    return (abs(l1[0]-l2[0]) < (d1[0] + d2[0])/2 and abs(l1[1]-l2[1]) < (d1[1] + d2[1])/2 and abs(l1[2]-l2[2]) < (d1[2] + d2[2])/2)