Dirtbike handling fixed!

Flan · 08-27-2007, 10:50 AM

ok, it took me a few minutes of testing the bf2 editor but i have a dirtbike that leans in theory, only thing thats holding me back at the moment is the fact that i dont know how to shift an objects center of gravity.

Heres how to do it: the dirtbike at present has 6 wheels, 2 that you can see and four invisible stablisers. All you need to do (in the bf2 object editor) is set the strength of the stabliser wheels to around 4 or 5, and the strength of the two visable wheels to around 100 to compensate (or mabe more to fix the annoying damage from terrain that it always receives). the dirtbike will now lean on a corner and right itself but it will lean the wrong way, all that now needs to be done is to shift the centre of gravity to below where the wheels touch the ground. This would create a realistic turning effect but it is also where im stuck, i have no idea how to move the centre of gravity in the editor, i have also read that it may have to be done in 3dsmax but i dont know how. If anyone can help i will go on improving its handling.

My "suggestion" is that we add this system to the existing dirtbike for reality.

Danthesandman · 08-28-2007, 01:48 AM

ow good idea mate. i find the dirtbikes stupid so that would help. but just checkn but because u turn with keys its a full turn or nothing. doesnt that bugger up things?

ljufmennid+1 · 08-28-2007, 07:44 AM

nice, always fell like the dirt bikes are retarded rockets or somethink, but the quad bikes are excelent, use one just like you guys have for brithis for hunting here in iceland and damn just the same felling

Reddish Red · 08-28-2007, 07:55 AM

Quads are too weak sometimes.

Anyway, Nice Job (Can you Post a Video of it as well?)

Flan · 08-29-2007, 07:14 AM

i have sort of given up on moving the center of gravity of the vehicle. instead i have decided to add a rudder from an aircraft above it, this will help with lean responsiveness and also the effect will be less at low speeds.

now how do i get the damn thing to work!

ill post a video if it works when im done.

[R-DEV]e-Gor · 08-29-2007, 07:46 AM

The centre of gravity cannot be underground. (the vehicle would just spawn up in the air) If it could, we'd already have them working like that.

Flan · 08-29-2007, 08:32 AM

Yeah i can see that now, it uses the centre of the object for every single calculation it does, stupid bf2 engine. Any idea how jet rudders work? im getting some strange handling out of my bike + jet tail rudder

I can now do flatland tricks

Edit:
ok scrapped the center of gravity and rudder ideas, used the two front guide wheels to tip bike by moving them when the bike turns. heres a video

http://www.megaupload.com/?d=N1JYR566

Advantages: bike works very well at low/medium speeds, looks more realistic, feels much more like a 2 wheeled vehicle, less damage taken from terrain.
Disadvantages: now harder to climb hills and some stability issues.

if anyone wants the files for my version so they can try it out and refine it ill upload them for yah. ill keep working on this.

TexLax · 08-29-2007, 06:28 PM

Quote:

Originally Posted by Flan

Yeah i can see that now, it uses the centre of the object for every single calculation it does, stupid bf2 engine. Any idea how jet rudders work? im getting some strange handling out of my bike + jet tail rudder

I can now do flatland tricks

Edit:
ok scrapped the center of gravity and rudder ideas, used the two front guide wheels to tip bike by moving them when the bike turns. heres a video

http://www.megaupload.com/?d=N1JYR566

Advantages: bike works very well at low/medium speeds, looks more realistic, feels much more like a 2 wheeled vehicle, less damage taken from terrain.
Disadvantages: now harder to climb hills and some stability issues.

if anyone wants the files for my version so they can try it out and refine it ill upload them for yah. ill keep working on this.

upload it to youtube, i would rather not download something

Soalic · 08-29-2007, 06:48 PM

when i downnload it, its just sound and nothing else.

Flan · 08-29-2007, 07:39 PM

Sigh... here you go then

http://www.youtube.com/watch?v=GkW6x8lk6OU

as you can see its not perfect, but it is improving - if very slowly.

08-27-2007, 10:50 AM	#1
Flan Join Date: Jun 2007 Posts: 67	Dirtbike handling fixed! ok, it took me a few minutes of testing the bf2 editor but i have a dirtbike that leans in theory, only thing thats holding me back at the moment is the fact that i dont know how to shift an objects center of gravity. Heres how to do it: the dirtbike at present has 6 wheels, 2 that you can see and four invisible stablisers. All you need to do (in the bf2 object editor) is set the strength of the stabliser wheels to around 4 or 5, and the strength of the two visable wheels to around 100 to compensate (or mabe more to fix the annoying damage from terrain that it always receives). the dirtbike will now lean on a corner and right itself but it will lean the wrong way, all that now needs to be done is to shift the centre of gravity to below where the wheels touch the ground. This would create a realistic turning effect but it is also where im stuck, i have no idea how to move the centre of gravity in the editor, i have also read that it may have to be done in 3dsmax but i dont know how. If anyone can help i will go on improving its handling. My "suggestion" is that we add this system to the existing dirtbike for reality.
Flan Join Date: Jun 2007 Posts: 67

08-28-2007, 01:48 AM	#2
Danthesandman Join Date: Jun 2007 Australia Posts: 85	ow good idea mate. i find the dirtbikes stupid so that would help. but just checkn but because u turn with keys its a full turn or nothing. doesnt that bugger up things?
Danthesandman Join Date: Jun 2007 Australia Posts: 85	To view links or images in signatures your post count must be 1 or greater. You currently have 0 posts.

08-29-2007, 07:14 AM	#5
Flan Join Date: Jun 2007 Posts: 67	i have sort of given up on moving the center of gravity of the vehicle. instead i have decided to add a rudder from an aircraft above it, this will help with lean responsiveness and also the effect will be less at low speeds. now how do i get the damn thing to work! ill post a video if it works when im done.
Flan Join Date: Jun 2007 Posts: 67

08-29-2007, 08:32 AM	#7
Flan Join Date: Jun 2007 Posts: 67	Yeah i can see that now, it uses the centre of the object for every single calculation it does, stupid bf2 engine. Any idea how jet rudders work? im getting some strange handling out of my bike + jet tail rudder I can now do flatland tricks Edit: ok scrapped the center of gravity and rudder ideas, used the two front guide wheels to tip bike by moving them when the bike turns. heres a video http://www.megaupload.com/?d=N1JYR566 Advantages: bike works very well at low/medium speeds, looks more realistic, feels much more like a 2 wheeled vehicle, less damage taken from terrain. Disadvantages: now harder to climb hills and some stability issues. if anyone wants the files for my version so they can try it out and refine it ill upload them for yah. ill keep working on this.
Flan Join Date: Jun 2007 Posts: 67
	Last edited by Flan; 08-29-2007 at 02:37 PM.. Reason: Uploaded a video

08-29-2007, 06:48 PM	#9
Soalic Join Date: May 2007 Posts: 76	when i downnload it, its just sound and nothing else.
Soalic Join Date: May 2007 Posts: 76

08-28-2007, 07:44 AM	#3
ljufmennid+1 Join Date: Jul 2007 Location: iceland Posts: 23	nice, always fell like the dirt bikes are retarded rockets or somethink, but the quad bikes are excelent, use one just like you guys have for brithis for hunting here in iceland and damn just the same felling

08-28-2007, 07:55 AM	#4
Reddish Red Join Date: Aug 2007 United Kingdom Location: Coventry Posts: 565	Quads are too weak sometimes. Anyway, Nice Job (Can you Post a Video of it as well?)

08-29-2007, 07:46 AM	#6
[R-DEV]e-Gor PR Coder Team Join Date: Mar 2006 United Kingdom Location: Cambridge, UK Posts: 3,752	The centre of gravity cannot be underground. (the vehicle would just spawn up in the air) If it could, we'd already have them working like that.

08-29-2007, 07:39 PM	#10
Flan Join Date: Jun 2007 Posts: 67	Sigh... here you go then http://www.youtube.com/watch?v=GkW6x8lk6OU as you can see its not perfect, but it is improving - if very slowly.
Flan Join Date: Jun 2007 Posts: 67

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