CODEWITHSUNDEEP
cocos2d-iphone
denniss
denniss

Reputation: 17589

CoCos2D Intersection of non-rectangular sprites

I have a sprite with a triangle shape and I want to know when this triangle intersects with another object (a CCSPrite). I have been using CGRectIntersectsRect but it is not accurate because it take the bounding box of the the two sprites and not the actual shape.

--Edit

I think one way is to define several points around the actual triangle and check intersection between those points with another sprite. I am just wondering if there is an easier way to do this.

Upvotes: 0

Views: 443

Answers (1)

Morion
Morion

Reputation: 10860

You can use box2d to detect collisions accurately. It can be useful if you have many different complicated shapes. Or you can just check intersections of shape's edges.

If there is many objects to detect collisions with, I offer to use box2d. It has good internal optimizations to be able to work with large amount of objects. In this case you will just have to create physical body equal to the your sprite's shape before adding object to your game layer.

Upvotes: 1

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