Scratch
archived forums
#1 2011-07-22 16:18:47
I need help with car acceleration
I am trying to make a project similar to "drift car sim" by Shwingie. Is there a way to do that without all that trigonometry?
84% of teenagers own cell phones. Add this to your signature if you like pop tarts.
Offline
#2 2011-07-22 19:26:01
- floppy_gunk
- Scratcher
- Registered: 2008-11-14
- Posts: 500+
Re: I need help with car acceleration
Filtaido wrote:
I am trying to make a project similar to "drift car sim" by Shwingie. Is there a way to do that without all that trigonometry?
If you want the car to skid, then you need to use trigonometry. You don't need to know any trigonometry for anything else, just velocity and acceleration.
Get it now! 
Offline
#3 2011-07-22 20:23:51
Re: I need help with car acceleration
Well, there is one way you could make the car move independently of its direction without trigonometry. You can make a mock "car" sprite that follows another invisible sprite that actually controls the movement, and make the visible sprite turn to appear as though it's drifting.
Offline
#4 2011-07-22 20:48:31
- Thescratch3
- Scratcher
- Registered: 2011-06-14
- Posts: 1000+
Re: I need help with car acceleration
Harakou wrote:
Well, there is one way you could make the car move independently of its direction without trigonometry. You can make a mock "car" sprite that follows another invisible sprite that actually controls the movement, and make the visible sprite turn to appear as though it's drifting.
Well it will need trigonometry for the "mock car" sprite.
View my projects. Or face The scratch curse! (Get it?)
Offline
#5 2011-07-22 21:22:21
Re: I need help with car acceleration
Thescratch3 wrote:
Harakou wrote:
Well, there is one way you could make the car move independently of its direction without trigonometry. You can make a mock "car" sprite that follows another invisible sprite that actually controls the movement, and make the visible sprite turn to appear as though it's drifting.
Well it will need trigonometry for the "mock car" sprite.
No it wouldn't. 
All the visible sprite would have to do is turn and go to the position of the invisible one.
Offline
#6 2011-07-23 12:22:14
Re: I need help with car acceleration
"Drifting" isn't trivial, I'm not sure if you could pull it off realistically without trig. I've done a "spaceship" type project with a guide sprite, but it doesn't really act much like a car would.
Here's a drift car project that acts about right - you could copy the car from it for your project if desired.
Offline
#7 2011-07-23 13:57:09
- Thescratch3
- Scratcher
- Registered: 2011-06-14
- Posts: 1000+
Re: I need help with car acceleration
Harakou wrote:
Thescratch3 wrote:
Harakou wrote:
Well, there is one way you could make the car move independently of its direction without trigonometry. You can make a mock "car" sprite that follows another invisible sprite that actually controls the movement, and make the visible sprite turn to appear as though it's drifting.
Well it will need trigonometry for the "mock car" sprite.
No it wouldn't.
But what about the "mock car" sprite?
View my projects. Or face The scratch curse! (Get it?)
Offline