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Comment by ghostdiver | Hacker News Reader

It's very simple and lightweight, however collision code is very naive:

  if (obj1BoundingBox === this.RECTANGLE &&
            obj2BoundingBox === this.RECTANGLE)
          return Maths.rectanglesIntersecting(obj1, obj2);

which means it will not work for moving objects

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It means it won't work for very fast moving objects.

For most purposes this type of collision is fine. It's a lot quicker too - doing line intersections for every potential collision is quite intensive. Often it's best to reserve more thorough checks for objects like bullets which you know will be moving fast.

It is not like you can implement collision resolving system ad hoc as a plugin or extension if base code does not offer you some proper foundation.

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