Add Vehicle demo

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Create a demo that shows how to create a Bullet vehicle.

Original issue reported on code.google.com by erwin.coumans on 8 Sep 2010 at 4:12

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Isn't the Vehicle Demo exactly that? Or are you after a more advanced version 
of this?

Original comment by BenT.Sol...@gmail.com on 9 Sep 2010 at 1:28

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Yes, it is exactly that. This issue tracks the progress on it.

Original comment by erwin.coumans on 9 Sep 2010 at 1:35

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For now the demo just sets up a basic bullet vehicle raycast constraint and 
minimum logic for the car and camera control. Here is the current issues I am 
thinking of right now:

-Use a non commercial car chassis for legal issues

-I should use the blender file clubsilo_packed.blend as this is the one we can 
use for bullet promotion and import the rest of the assets from other sources. 
However this file would still need to be cleaned of the thousands of unused 
vertices that affect strongly the performances.

-The meshes in this file are really different from the blend used in the final 
game and result in really buggy dynamics. Joining all the meshes into one like 
I did is only a workaround until I figured that out (Thanks to Erwin for the 
tips).

-Use physics simulation step callbacks instead of frame callbacks (I need to 
add this feature to Gamekit and use it in the demo).

-Give possibilities to switch between manual and automatic gearbox as well as  
propulsion/traction/4x4 mode.

-Add some polish that showcase other feature of Gamekit (overlays for HUD, 
sound, decal for handbrake, ...)

Original comment by xavier.thomas.1980@gmail.com on 9 Sep 2010 at 4:12

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Sounds like a good list. One other thing I'm looking at is allowing decent slip 
to allow drift style driving. 

One of my favourite features of the "arcade driving sims" such as that in Grand 
Theft Auto & the Burnout series is the simple "tap handbrake to allow drift" 
action they have. I know that one needs to "tweak" the physics a little 
unrealistically to allow this, but it is something that I've found most 
requested in my mini-surveys about car dynamics.

Original comment by BenT.Sol...@gmail.com on 9 Sep 2010 at 11:00

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The first 4 points are fixed. 
The 5th point is already functional but there is not logic to switch yet.

Original comment by xavier.thomas.1980@gmail.com on 2 Oct 2010 at 9:59

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i made some tracks for supertuxkart you could use for the demo if you like. the 
canyon track for example. you can see it in this youtube video: 
http://www.youtube.com/watch?v=_vn8OK9GWvE

(the current official 0.7 release contains a sloppy export though. it looks 
ugly because the smoothing is all wrong and there are some other errors. the 
svn version looks better like in the youtube video.)

Original comment by horac...@gmail.com on 4 Feb 2011 at 5:56

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Hi Horac,

Can you share the .blend file?

Are you copyright holder/creator of the assets, such as track, textures, 
vehicles and music?

If so, under what license are the art assets?

Original comment by erwin.coumans on 7 Feb 2011 at 6:26

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[deleted comment]

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yes, i can share the blend file. i created the track and all of its textures 
and the license is CC BY-SA 3.0.

here is the download link:
http://forum.freegamedev.net/viewtopic.php?f=18&t=763&p=7866#p7866

i didn't do any karts or music for supertuxkart. the karts of supertuxkart 
probably could also be used though. i think they are CC BY-SA 3.0 too but that 
would have to be checked to be sure.

i also would have a model of a buggy:
http://img12.imageshack.us/i/shot14u.jpg/
it has a rigged and animated suspension. but unfortunately i didn't do the 
character myself so it would come without character sitting in it.

Original comment by horac...@gmail.com on 10 Feb 2011 at 8:32

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some vehicle demo exists, lets close the issue

Original comment by erwin.coumans on 12 Apr 2012 at 3:39

• Changed state: Fixed