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I'm making a car game, and I need to find a function for the acceleration of the car. I want the acceleration to be 0.2 when the speed is close to zero and the acceleration to be close to 0 when the speed is close to 10....anyone???
http://vbforums.com/attachment.php?s=&postid=1325817
The function should make a graf that looks like the picture. Something like an Ln function or something like that. ANyone know how to do that???
something like this maybe
a(v)=0.2-ln(v/10*(e-1)+1)*0.2
I tried your function, but it looks like the speed is close to zero the acceleration is more then 9. I wan it to be 0.2. Am I doing something wrong or, was you function fault????Quote:
Originally posted by kedaman
something like this maybe
a(v)=0.2-ln(v/10*(e-1)+1)*0.2
I found it....
Y(X)=0.1 - 0.1log X
I was only looking at the ln function, but actually the LOG function was bether....:)
No this is totaly wrong...forget this for a moment...I have to rethink my question....
Forget the whole thing. Thanks for trying to help me out. But the answer was something like:
Acceleration = 0.23 - (0.1 * Log(Speed))
so I'm not sure what I was doing...
BTW: How do I use e(the natural number) and ln in VB code?????????
base convertion a to b
log x(b) =log a(x)/log a(b)
in vb to get ln(x) you have log(x)/log(e)
Thanks, that was actuall something that I didn't remember from math...but thanks anyway...:)
You could use a trigonometric function.
'cos(0) = 1 cos(90) = 0 right??
Accel = cos(currentspeed/maxspeed)*maxaccel
im not sure if that woudl work as I haven't thought over it much/tv going in background
mentos mentos mentos.. sorry
I don't think I can use Cos or Sin , because they only make perfect waves, if you see my pic at the top, it is a Ln/log graf.
BTW I did, put a Resolved tag at the thead, because the game is working OK now. So you can consentrate on the TV instead...:D