Collision help
BlitzMax Forums/BlitzMax Programming/Collision help
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I'm having some problems trying to get my head around collisions for a platform game. I've not used BlitzMax to any extent before and would ask if any of you could please have a look at the file in the link and help me out with it? http://www.enigma.retroremakes.com/russ/BuildMap.zip |
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Whats your problem? I noticed he falls into the level then can't walk... Line 117 moves the player down, then you check for collision. But if a collision has occured the player will be embedded in the level. Change line 120 to PlayerY = PlayerY - 2.8 to put him back to where he was. |
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It's still not right. He's able to jump into parts of the level. If you move him to the left and try and jump on the level, you will see what I mean. |
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Ok, Russ Some notes; First; checking playerX + 16 and playerX + 32 is too far over. You'd have to check PlayerX,PlayerX+16 AND PlayerX+32. Instead check half the tile width.. PlayerX + 8 and PlayerX + 24 which does a good job of averaging the correct two tiles to check. Second; checking for stopping a fall should be an OR not an AND check. You only stopped a fall if both tiles below are occupied, when you should stop if either one is! Third; I added a little re-adjustment to playerY so he always stops on the ground (see the While/Wend).. Hope that helps |