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I need information on how vechicle movement works [message #88480]

Tue, 18 May 2004 18:45

jonwil
Messages: 3557
Registered: February 2003

Karma: 0

General (3 Stars)

i.e. all the wheel bones etc.

What I need is complete information such as "rotate the wheelp bone 20 degrees around the X axis every 30 seconds then rotate the wheelc bone 20 degrees around the Y axis every 5 seconds" or something.

i.e. all the info needed to take a renegade vechicle and make it move "realisticly" (in the renegade context) accross the screen at a certain speed. (whichever speed is easiest to animate will do)

Jonathan Wilson aka Jonwil
Creator and Lead Coder of the Custom scripts.dll
Renegade Engine Guru
Creator and Lead Coder of TT.DLL
Official member of Tiberian Technologies

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I need information on how vechicle movement works [message #88576]

Wed, 19 May 2004 00:17

gibberish
Messages: 366
Registered: May 2003

Karma: 0

Commander

Dunno If this will help you much, but I might as well get the ball rolling:

If a vehicle is moving in a straight line we have:

Circumference = Pi * WheelRadius * 2

- The Distance a vehicle travels
Distance = Rotations * Circumference

- Also Distance is related to speed
Distance = Speed * Time

Note: Speed is in GameUnits per second.

- So putting this together we get:
Speed * Time = Rotations * Pi * WheelRadius * 2

- However time is determined by the interval between the frames.
Time = 1 / FPS

- So we now have
Speed / FPS = Rotations * Pi * WheelRadius * 2

- So re-arranging for rotations we get
Rotations = Speed / (FPS * Pi * WheelRadius * 2)

Now you can just multiple Rotations by 360 to get Degrees or 2 Pi for Radians.

Note: If you use Radians you can elimiate Pi from the calculation completely:

RadiansPerFrame = Speed / (FPS * WheelRadius)

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I need information on how vechicle movement works [message #88920]

Wed, 19 May 2004 21:51

jonwil
Messages: 3557
Registered: February 2003

Karma: 0

General (3 Stars)

That doesnt help Sad

I need to know in terms of the various bones Renegade uses for wheels.

Jonathan Wilson aka Jonwil
Creator and Lead Coder of the Custom scripts.dll
Renegade Engine Guru
Creator and Lead Coder of TT.DLL
Official member of Tiberian Technologies

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I need information on how vechicle movement works [message #88974]

Thu, 20 May 2004 08:36

Slash0x
Messages: 455
Registered: January 2004
Location: California

Karma: 0

Commander

jonwil

That doesnt help Sad

I need to know in terms of the various bones Renegade uses for wheels.

WheelC01R, WheelC02R, WheelC03L, and WheelC04L for center of the wheel bones.

WheelP01R, WheelP02R, WheelP03L, and WheelP04L for the bottom of the wheel bones.

I'm not at home, so the above is guessing, but I'm pretty sure about it.

L3T'5 4LL THR0W 3GG5 4T D4 N00B! Smile

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I need information on how vechicle movement works [message #88984]

Thu, 20 May 2004 10:06

gibberish
Messages: 366
Registered: May 2003

Karma: 0

Commander

Slash0x

WheelC01R, WheelC02R, WheelC03L, and WheelC04L for center of the wheel bones.

Are all the center bones Axis aligned so you just do a rotation about the Y-Axis to spin the wheels?

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I need information on how vechicle movement works [message #88985]

Thu, 20 May 2004 10:10

laeubi
Messages: 799
Registered: February 2003
Location: Germany

Karma: 0

Colonel

Vehicles.doc and the tuts on Renhelp tell you all you need about the bones.

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