Understanding Max2D Collision Functions
BlitzMax Forums/BlitzMax Tutorials/Understanding Max2D Collision Functions
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| If you've been wondering how to use the Max2D collision functions, here's a good opportunity to learn. This tutorial covers all four Max2D functions; ImagesCollide, ImagesCollide2, CollideImage and CollideRect. The tutorial is broken into 3 Parts:- Max 2D Collision Part 1 Max 2D Collision Part 2 Max 2D Collision Part 3 This is actually part of my Learning 2D Game Programming Series. |
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| Excellent! great work assari (I also like the way the images load from your web page!) |
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| very usefull. Many thanks ! |
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| Very nice. I'm curious about why you pass images into a bank before loading them? |
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| Neat, thanks for the tuts. |
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Superb as always. Just checking the first and you have a slight error when suggesting ImagesCollide2.If ImagesCollide(Alien,150,200,Frame,0,AlienSize,AlienSizePlayer,MouseX(),MouseY(),0,0,PlayerSize,PlayerSize) should be... If ImagesCollide2(Alien,150,200,Frame,0,AlienSize,AlienSize,Player,MouseX(),MouseY(),0,0,PlayerSize,PlayerSize) (notice the function and 'aliensizeplayer' with the comma). <edit> to take out rambling. |
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| tonyg, well spotted. Thanks. It's now corrected. @GW, when you loadimage from http::, you need to loadbank first otherwise the loadimage fails |
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| Interesting.. That's good to know. |
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| I've released a german translation. => http://simi.chat-blitz.de/tut_collision/ ___________________________________________ Thread in the german forum: => http://www.blitzforum.de/forum/viewtopic.php?t=18500 |
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| The function CircRectsOverlap function is structured badly. In the function name, Circ comes first, but in the parameters, Rect comes first. Confoozling. |
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| Great job on the tutorial. However, the ImagesCollide / ImagesCollide2 code on the page still has the error mentioned above: If ImagesCollide(Alien,150,200,Frame,0,AlienSize,AlienSize,Player,MouseX(),MouseY(),0,0,PlayerSize,PlayerSize) There is another error on that same line - it has the Y component of the alien's position off by 100 pixels, so the collision is happening well away from where it should. |
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| NoBoDo, thanks for letting me the know the errors. They are fixed now. Also noticed a bug in the exit condition, fixed that too :) |
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| Here's russified version translated by JohnK: http://blitzetc.boolean.name/articles/coll1.htm http://blitzetc.boolean.name/articles/coll2.htm http://blitzetc.boolean.name/articles/coll3.htm |
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