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Collision detection

Name: Anonymous 2009-06-28 17:24

I dislike collision detection with a burning passion.
I don't have problems creating a tile-based system (which is trivial) or a simple 2D system with circles and arbitrary polygons, but that's it. I tried to program a 3D system once and while I didn't fail completely, it was far from what I'd like to accomplish. Additionally, pretty much every system which I do resolves collisions after moving objects, since I don't really know how to do this in a different way (aside from a shitty recursive algorithm I once did).

So, could any of you help me? I would really appreciate if you could give me links etc. I will do some more searching on my own as well, but you EXPERT PROGRAMMERS probably know what could help me.

Also, does anyone here have Ericson's Real time Collision Detection? I'd like to read it, but it's quite expensive (over £35 used and over £50 (!!) new on amazon).

And lastly, let's have a discussion about collision detection (you know, about actual programming) ;-)

Name: Anonymous 2009-06-28 17:26

Read code and papers. Welcome to the internet.

Name: Anonymous 2009-06-28 17:26

Game programming isn't actual programming.

Name: Anonymous 2009-06-28 17:34

http://www.metanetsoftware.com/technique.html has ray-based collision tutorials as well as simple shapes.
Also, there's no reason you can't just add an extra dimension and the necessary code, 3D is only triangles anyway.

Name: Anonymous 2009-06-28 17:42

>>1
You seem poor. Are you poor?

Name: Anonymous 2009-06-28 18:04

>>5
Silly man, satori doesn't judge a man of his class or amount of wealth. Some of the best minds the world has ever known have been, let's say, a bit "financially challenged".

Name: Anonymous 2009-06-28 18:05

another roof, another proof

Name: Anonymous 2009-06-28 18:06

>>6
Are you implying that the Sussman is somehow short on Susscoins? Doesn't sound very likely to me.

Name: Anonymous 2009-06-28 18:07

>>3
You just raped my nephew with those words. Prepare to be turned into a whale.

And beached.

Name: Anonymous 2009-06-28 18:11

>>8
No, not at all, sir. The Sussman is not short on Susscoins. He kindly takes in all of those who wish to learn the way of satori. Regardless if they're of wealth and class or not.

Name: Anonymous 2009-06-28 19:36

Name: Anonymous 2009-06-28 19:38

>>9
I can't start crying over here.

Name: Anonymous 2009-06-28 19:39

>>12
I think this may be my best post yet.

Name: Anonymous 2009-06-28 20:54

>>9
So I'm, like, an eagle now.
http://www.youtube.com/watch?v=ODORlSRPQ5g

Name: Anonymous 2009-06-28 20:59

use ODE

Name: Anonymous 2009-06-28 21:12

Name: Anonymous 2009-06-28 21:31

>>1
Do you mean like a The Ginger detector?

Name:   2009-06-28 22:18

>>17
It's spellet 66gieger99

Name: Anonymous 2009-06-29 8:28

>>18
It's spelt `spelled'.

Name: Anonymous 2011-02-04 19:48

Name: Anonymous 2013-01-19 23:09

/prog/ will be spammed continuously until further notice. we apologize for any inconvenience this may cause.

Name: Anonymous 2013-08-31 13:54


And so while I'm walking down the mall, a bunch of the girls are riding their bikes with the starchy dresses. And they all go down this one hall, and I follow them and it leads to some sort of arcade thing, but its like a private arcade, and so you have to wait in line like to get in like a club. I wait around awhile, but no one is let through so I walk off. I decide to head back to my apartment/dorm/hotel room. On the way back to the entrance of the mall I see a bunch of Japanese girls cosplaying Vocaloids and Touhou characters.

Name: Anonymous 2013-08-31 14:39


I just saw a truck driving down the train tracks. It looked much like this pic but white and had yellow flashing lights. I guess it is probably for maintenance.

Name: Anonymous 2013-08-31 15:24


This at least makes your job slightly easier. It's much easier if you upgrade/enhance your weapon. You can use 強化「荒御魂」spellcard to enhanced your weapon in game and 硬化「幸御魂」to enhance shield in your game

Don't change these.
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