I am developing a game where a space ship shoots bricks at the top of the screen from the bottom of the screen. I have done alot of research on collision detection and bounding boxes in particular but I am still confused about how to implement a good collision detection routine.If you know of any really good web sites please share them with me.
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#2 Members - Reputation: 316
Posted 08 May 2012 - 10:50 PM
For collision detection for shooting bricks, you could just go with the InsersectRect() function as the bullets would just travel straight up and always hit from below (I'm assuming). That should mostly suffice your needs depending on what you want to do. If it was a ball/brick collision like BreakOut, now that's a different story. 
#4 Members - Reputation: 1006
Posted 09 May 2012 - 11:24 PM
You may experience the problem of your bullets travelling too fast, e.g. gone all the way past a brick without a collision in one time step. In that case intersecting a line with a rectangle might make more sense, e.g. the line from bullet_old_y to bullet_new_y.
#5 Members - Reputation: 316
Posted 10 May 2012 - 01:17 AM
You may experience the problem of your bullets travelling too fast, e.g. gone all the way past a brick without a collision in one time step. In that case intersecting a line with a rectangle might make more sense, e.g. the line from bullet_old_y to bullet_new_y.
Thank you jefferytitan. I forgot to mention that part.
