//If touching, returns unit vector pointing from A towards B
//else returns 0,0,0
public static Vector3 CheckRoomTouch(Bounds a, Bounds b, float minOverlap)
{
Interval a_x = new Interval(a.min.x, a.max.x);
Interval a_y = new Interval(a.min.y, a.max.y);
Interval a_z = new Interval(a.min.z, a.max.z);
Interval b_x = new Interval(b.min.x, b.max.x);
Interval b_y = new Interval(b.min.y, b.max.y);
Interval b_z = new Interval(b.min.z, b.max.z);
int roomTouchX = Interval.CheckTouching(a_x, b_x);
int roomTouchY = Interval.CheckTouching(a_y, b_y);
int roomTouchZ = Interval.CheckTouching(a_z, b_z);
bool roomOverlapX = Interval.CheckOverlap(a_x, b_x, minOverlap);
bool roomOverlapY = Interval.CheckOverlap(a_y, b_y, minOverlap);
bool roomOverlapZ = Interval.CheckOverlap(a_z, b_z, minOverlap);
//-.-- -.-- --..
if (roomOverlapX && roomOverlapY)
{
return(Vector3.forward * roomTouchZ);
}
if (roomOverlapZ && roomOverlapY)
{
return(Vector3.right * roomTouchX);
}
if (roomOverlapX && roomOverlapZ)
{
return(Vector3.up * roomTouchY);
}
return(Vector3.zero);
}