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Dark GDK / Object Collision

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Vesper103
16
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Joined: 21st Feb 2008
Location: Beloit WI
Posted: 23rd May 2008 08:01
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okay so i need to find out if an object is hitting nothing at all. Cycling through all existing objects and calculating collision would be too slow, and if(dbObjectCollision(object,0)==0) does not seem to work. so is there any way to do this?

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Core2uu
16
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Joined: 15th Mar 2008
Location: Saskatoon, SK, Canada
Posted: 23rd May 2008 08:30 Edited at: 23rd May 2008 08:31
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Umm... Howz about
...

~~It's not who you are underneath, but what you do that defines you.~~
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Vesper103
16
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Joined: 21st Feb 2008
Location: Beloit WI
Posted: 23rd May 2008 08:51
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that returns if 2 given objects collide. what I need is it 1 object and ANY object collide. meaning if the object hits the terrain: it returns something other than 0, if it hits a table, it returns something other than 0.

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jezza
16
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Joined: 8th Mar 2008
Location: Bham, UK
Posted: 23rd May 2008 09:13
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make a loops that runs through all the objects and test for each of them separately.
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Vesper103
16
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Joined: 21st Feb 2008
Location: Beloit WI
Posted: 23rd May 2008 09:28
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is there no other way? wont that be........a fps killer?

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Charles
20
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Joined: 11th Jul 2004
Location: Phoenix, AZ USA
Posted: 23rd May 2008 12:27
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Yes, there is:

Use dbObjectCollision(ObjA, 0). By setting the second parameter to zero, the command will return the object number that collided with ObjA. Simple, isn't it?
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Vesper103
16
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Joined: 21st Feb 2008
Location: Beloit WI
Posted: 23rd May 2008 12:47
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Simple yes, i tried that however and it refuses to return 0 when there is no collission. it basically says there is always a collission and refuses to allow me to move -.-

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jason p sage
17
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Joined: 10th Jun 2007
Location: Ellington, CT USA
Posted: 23rd May 2008 17:39
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Learn to set up and use groups in sparkys. Then you can check a WHOLE group is one fo - and not kill FPS

ITs better to check a couple grous: trees group, rocks group, terrain tiles group ... than iterating through each "thing" individually!


http://www.jasonpetersage.com/?PAGE=ironinfantry&SECTION=ironinfantry
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programing maniac
16
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Joined: 19th Apr 2008
Location: Bawk, Bawkity
Posted: 24th May 2008 16:25
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I agree with Jason, use sparky's, and use the group thing in it, example-

dbMakeObjectSphere ( 1, 23.0f );
dbMakeObjectBox ( 2, 10.0f, 20.0f, 10.0f );
SC_SetupObject ( 1, 1, 1 );
SC_SetupObject ( 2, 1, 2 );
//Later in the code

if ( !SC_GroupCollision ( 3, 1 ){
}

That probably will work better, as Jason said. (This code is a little messy, mostly because it isn't a full code, but I think you get the point!)

~~Its not about what you know, its about how you figure it out.~~
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Vesper103
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Location: Beloit WI
Posted: 24th May 2008 19:59
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hmm i shall deff look into sparkys thank you

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