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 Advice wanted about collsion detection  (Read 1420 times) 0 Members and 1 Guest are viewing this topic.
Daz

Senior Newbie

Java games rock!

 « Posted 2004-11-17 08:49:25 »

Hi, i am creating a snooker game in java 2d at the moment, but i am not sure what collision detection strategy to use. Anyone got any ideas?

Junior Devvie

586: The average IQ needed to understand a PC

 « Reply #1 - Posted 2004-11-17 08:56:45 »

Stop crossposting

phazer

Junior Devvie

Come get some

 « Reply #2 - Posted 2004-11-17 11:26:05 »

Last time I checked snooker balls were round, so 2D circular bounds would be good.

It's extremely easy to check the collision between two stationary circles.

If that's not accurate enough, it's quite easy to calculate the collision of one moving circle and one stationary. I hope you were awake on the linear algebra lessons.

If that is not accurate enough for you, you can come up with an equation that calculates the collision of two moving circles. Just find the solution for t in:

 1  2  3  4  5  6  7  8  9 `|(p1 + t*v1) - (p2 + t*v2)| = 2*rwhere:p1 = the position of ball 1v1 = the velocity vector of ball 1p2 = the position of ball 2v2 = the velocity vector of ball 2r = the ball radius`

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