CODEWITHSUNDEEP
javascriptkineticjs
user1958502
user1958502

Reputation:

KineticJS perimeter collision detection for shapes

I have two shapes, both circles, and they are moving on the stage. They are just bouncing off the boundaries of the stage when they reach it. What they never do is collide, which is something I would like to add some logic for. As close as I have gotten is 

shape1.intersects(shape2.getPosition());

but that doesn't really come close to what I want to achieve, which would be perimeter collision detection, not just if one point is in another shape.

Upvotes: 2

Views: 772

Answers (1)

SoluableNonagon
SoluableNonagon

Reputation: 11755

Try simple bounding box collision detection:

function doObjectsCollide(a, b) { // a and b are your objects
   return !(
    ((a.getY() + a.getHeight()) < (b.getY())) ||
    (a.getY() > (b.y + b.getHeight())) ||
    ((a.getX() + a.getWidth()) < b.getX()) ||
    (a.getX() > (b.getX() + b.getWidth()))
   );
}

Upvotes: 1

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