2 types colliding
Blitz3D Forums/Blitz3D Beginners Area/2 types colliding
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| I am writing my first game (a pretty poor space invaders). When the players ship fires a bullet (of which there may be lots on the screen at the same time) how do I detect if ANY bullet has hit ANY alien without doing 2 loops which slow down the program too much (i.e. looping through every bullet and every alien) - I have looked through the forum and may be missing the answer. The collision function I've used is below. Thanks for any help. Function CheckCollision() For bullet = Each bulletdata For alien = Each aliendata If Imagescollide(bullets,bullet\xpos,bullet\ypos,Aliens,Alien\xpos,Alien\ypos) Then PlaySound Alienhit score = score + 20 Delete Alien EndIf Next Next End Function |
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| Nah, types are super fast. You'll need to do two loops to check every collision. Unless your talking about 100's of bullets vs hundreds of ships, doing 2 loops is fine for speed really :o) |
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| If possible, you can use the ImagesOverlap command. It's faster than the ImagesCollide command. |
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