Box2d too much for Circle/Circle collision detection?

Posted by Joey Green on Game Development See other posts from Game Development or by Joey Green
Published on 2012-10-24T19:07:14Z Indexed on 2012/10/24 23:18 UTC
Read the original article Hit count: 482

Filed under:

collision-detection

I'm using cocos2d to program a game and am using box2d for collision detection. Everything in my game is a circle and for some reason I'm having a problem with some times things are not being detected as a collision when they should be.

I'm thinking of rolling up my own collision detection since I don't think it would be too hard.

Questions are:

Would this approach work for collision detection between circles?
a. get radius of circle A and circle B.
b. get distance of the center of circle A and circle B c. if the distance is greater than or equal to the sum of circle A radius and circle B radius then we have a hit
Should box2d be used for such simple collision detection? There are no physics in this game.

Related posts about collision-detection

Collision detection with curves

as seen on Game Development - Search for 'Game Development'
I'm working on a 2D game in which I would like to do collision detection between a moving circle and some kind of static curves (maybe Bezier curves). Currently my game features only straight lines as the static geometry and I'm doing the collision detection by calculating the distance from the circle… >>> More
Need some advice regarding collision detection with the sprite changing its width and height

as seen on Game Development - Search for 'Game Development'
So I'm messing around with collision detection in my tile-based game and everything works fine and dandy using this method. However, now I am trying to implement sprite sheets so my character can have a walking and jumping animation. For one, I'd like to to be able to have each frame of variable… >>> More
Collision Detection - Java - Rectangle

as seen on Stack Overflow - Search for 'Stack Overflow'
I would like to know if this is a good idea that conforms to best practices that does not lead to obscenely confusing code or major performance hit(s): Make my own Collision detection class that extends Rectangle class. Then when instantiating that object doing something such as Collision col =… >>> More
Collision Detection for Actionscript 3

as seen on Stack Overflow - Search for 'Stack Overflow'
Well, I was searching for a simple collision detection function for as3, I found Collision Detection Kit, but it is too complicated, I just want a damn function that I give 2 objects as paramenters and that's it. I would like to know where can I find a pixel-perfect collision detection function (The… >>> More
The Maths for 2D Collision Detection between an OBB and a Circle

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm creating a 2D game and want to test for collision between an OBB (Oriented Bounding Box) and a Circle. I'm unsure of the maths and code to do this. I'm creating the game in c++ and opengl. >>> More

Developer IT

Box2d too much for Circle/Circle collision detection? - Developer IT

Box2d too much for Circle/Circle collision detection?

collision-detection

Related posts about collision-detection

Collision detection with curves

Need some advice regarding collision detection with the sprite changing its width and height

Collision Detection - Java - Rectangle

Collision Detection for Actionscript 3

The Maths for 2D Collision Detection between an OBB and a Circle

Categories cloud