Bounding box collision in a platformer game

Vertigo · 2014-01-24T18:43:09

Hello devs, I am making a prototype for my first game (when I say "first" I mean that I camed up with the ideea myself, not games like pong or tic-tac-toe, which by the way, you can see here and here). I had some problems with gravity but fixed it after a while. Next problem that I faced was bounding box collision detection... [attachment=19567:Capture.PNG] With red are drawn the bounding boxes. I can stay on the top the ground. But like in any other platformer, you will hit the platform from down, left and right too. I don't really know how to code collision when player hit the platform from other sides. Here is the code to stay above the platform. if(player.bbox.Intersect(&platform1.bbox)) { player.y = platform1.y1 - player.width; //platform1.y1 - top-left corner Y coordinate } My bounding box class give me acces just to: x1, y1, x2, y2 coordinates of the bounding box, Intersect function (that checks if 2 bounding boxes intersects) and TestPoint function(that checks if a point is inside a bounding box). How I can do the collision with the other sides of the platform not only the top of it?

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Started by bratiefanut January 20, 2014 02:59 PM

10 comments, last by BeerNutts 10 years, 2 months ago

bratiefanut

1,467

Author

January 21, 2014 01:25 PM

I finally made it work! Thanks @dejaime and @Kryzon. Thumbs up.

"Don't gain the world and lose your soul. Wisdom is better than silver or gold." - Bob Marley

BeerNutts

4,410

January 24, 2014 06:43 PM

I finally made it work! Thanks @dejaime and @Kryzon. Thumbs up.

You can see this thread for answers on the same subject.

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Bounding box collision in a platformer game

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Bounding box collision in a platformer game

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