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3 Dimensional Chat / Collision detection with Terrain

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Melael Darkfury
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Joined: 29th Mar 2004
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Posted: 13th Apr 2004 19:34
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Is it possible to check for collision between an object (.x model) and terrain which I have built with make terrain? Otherwise maybe I should play with matrices or maybe make the level as a .x or BSP.

I want to fly my little helicopter around some islands and pick up people and or cargo, if it helps to know what I am up to.

I don't expect (or even want!) someone to write any code for me . Just after some advice to point me in the right direction, as there is a bewildering number of options to choose from.

What type of map would be easiest to add water to? Geoscape seems to have an option for water (I only have the demo so far), but when I exported my map to use within DBPro the water had gone. How can I create water between my islands? How can I check for collision with water seperately from land? This would be so I could sink the chopper and have a splash noise, rather than leaving a wreck (maybe) on land and having a crash noise.

Any tips please?

Thanks in advance.
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HyTech Designs Sam
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Posted: 13th Apr 2004 20:30 Edited at: 13th Apr 2004 20:32
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I could be wrong but I believe there is a collision with terrain command, look in the command help file under world commands (I'd check but Im on the wrong computer).

edit:
I didn't read the whole post, for the water separate from ground, you could make two terrains, one the ground then the other one the water and have two different collision detections, one for water one for ground.


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Melael Darkfury
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Posted: 14th Apr 2004 16:38
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Thanks for trying to help, I can't see a terrain collision command in the world section of commands, I did look there before posting and reviewing them I still have no luck. Unless BSP collisions work on them, which I do not think they do after some testing, but I might be wrong...?

Cheers,
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Emperor Baal
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Posted: 14th Apr 2004 18:12
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Water is easy. Just make a plain and texture it with a water texture. Don't forget to scale the texture (or it will be blurred).

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HyTech Designs Sam
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Posted: 14th Apr 2004 20:44
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you could try this:
x= object position x(player)
y= object position y(player)
z= object position z(player)

terrianheight= GET TERRAIN HEIGHT (terrain,x,z)

if y<terrainheight then crash the helicopter

of course you'd have to change the veriables and the commands after the if statement.

Hope it works (it should ),
Sam


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Melael Darkfury
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Posted: 15th Apr 2004 23:33
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Thanks again. I created a second matrix and filled it with a water coloured texture and ghosted it and that looks pretty good. I need to get my textures so they look more seamless though, it tends to show up the tile pattern at the moment. Plainer tiles should help that I think.

I was thinking terrain height would be no good if I run into cliffs etc, but I could always check height with an offset around the centre of my model I guess. I fear that might turn out to be tricky but maybe thats the only way if there is no collision checking I can do with a matrix.

Cheers
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