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2D All the way! / Collision System for a platform game?

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Blue Shadow
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Posted: 1st Apr 2004 22:57
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Hey! I just wondered how you would do a collision system for a platform game and how you would draw the images. Would you just draw the whole level as a picture and then draw invisible lines on the top or would you create a tile system. I also wondered how you would go about coding the collison bits.I tried using the sprite collision command but he just jumps through the bottom of the platform.

Any help at all would be greatly apreciated,

Michael

PS. Does anybody know any good tutorials on tile systems. Cheers!

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Pincho Paxton
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Posted: 2nd Apr 2004 00:54
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Although platform games usually use tiles, and array collision, you could also use sprites for platforms if you wanted to.

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Scouseknight
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Posted: 2nd Apr 2004 01:55
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I'm doing a remake of the Datasoft classic "Bruce Lee" which of course will use platforms - I'll be using arrays for the boundaries and floors so if I get anything working soon I'll post the code here - in the meantime good luck - and if you work something out post it here so I can benefit

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glint
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Posted: 2nd Apr 2004 03:37
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If you want to have levels that will scroll, I advise that you do not use the level as a single image. In my experience, large bitmaps slow things down dramatically. Instead, create a tilesheet and an algorithm to paste certain pieces of it to the screen. A level array with numbers corresponding to locations on the tilesheet could accomplish this.

A separate array could hold positions for walls, or whatever would cause collisions. These would not be sprites, just virtual points. It is easy to check to see if two points (ie, your character sprite and your wall object) are in collision proximity by checking the distance between them on the x axis and on the y axis.

I hope this makes sense. I'm not good at explaining things
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Scouseknight
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Posted: 2nd Apr 2004 03:56
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Makes perfect sense to me - which means you must be good at explaining things

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Blue Shadow
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Posted: 2nd Apr 2004 11:08
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Thanks for you help. I'll try that.

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