Car drifting

[wild8900]

How does the drifting for the cars on UN work? In other words, how would I make drifting for a car script that I have. It moves in the 360 degree direction that changes to the arrow key direction. How does drifting work in general?

EDIT: btw, I am willing to post parts of my script if it helps...

[Twinny]

Would be much the same as an ice skating rink script. I can provide a GS1 example though I'm not sure how useful that would be. PM me if you would like it.

[wild8900]

Thanks, im better with gs1

[Crono]

they got drifting on un? if so i should play there all day :P

[zim5354]

Originally Posted by Gerami

they got drifting on un? if so i should play there all day :P

UN cars suck.

[Yen]

What do you mean by drifting?

[k0rupt_ed]

they have drifting? wtf?

[wild8900]

not really drifting but what I mean is, when you are giong in one direction but turn to A different one really quick, you still move in the other direction a little bit with inertia.

[zim5354]

Originally Posted by wild8900

not really drifting but what I mean is, when you are giong in one direction but turn to A different one really quick, you still move in the other direction a little bit with inertia.

There scripting is just bad im pretty sure that wasnt intended lol.

[Chompy]

Originally Posted by wild8900

360 degree

For that, cos and sin would be good

[wild8900]

right, I already know that, my car script can move in 360 degrees with some pretty good collision detection. I just chose to limit it to 8 or 4 directions like UN.

[Chompy]

you made it like, when pressing left or right, angle++/-- and then up is acceleration and down is brake?

[Yen]

Well, you'll want to have two variables: xvelocity and yvelocity

While the car is moving, you'll increase the x/y by xvelocity and yvelocity.
When you press the up key, you'll decrease y velocity by the acceleration until it reaches the speed limit. When it reaches the speed limit, it stops increasing the velocity.
Do the same for the other keys.

PHP Code:

function onCreated() {
  this.xvelocity = this.yvelocity = 0;
  this.acceleration = .1;
  this.speedlimit = 1;
}

function onTimeout() {
  for (k = 0; k < 4; k++) {
    if (keydown(k)) {
      this.xvelocity = limit(this.xvelocity + vecx(k) * this.acceleration,-this.speedlimit,this.speedlimit);
      this.yvelocity = limit(this.yvelocity + vecy(k) * this.acceleration,-this.speedlimit,this.speedlimit);
    }
  }
}

function limit(val,min,max) {
  if (val < min) val = min;
  if (val > max) val = max;
  return val;
} 


[Chompy]

that Script looks good well you only miss one thing :O

setTimer(0.05); in timeout and/or in onCreated()?

or not needed?

[Yen]

I didn't give the full script, I just gave a general idea of how to do it.

[Chompy]

ah, I was wondreing, because I know you can script :P

[ApothiX]

Originally Posted by zim5354

UN cars suck.

**** >:[

Originally Posted by zim5354

There scripting is just bad im pretty sure that wasnt intended lol.

Actually, it was. Incase you haven't noticed, if you make a sharp turn with a car in real life, the momentum from the original direction you were travelling doesn't just magically dissapear.

[Twinny]

It wouldn't surprise me if the "drift" was caused by bad scripting =p

[ApothiX]

Originally Posted by Twinny

It wouldn't surprise me if the "drift" was caused by bad scripting =p

Reed b4 u post plx.