Graal Forums - Vehicle script

currently working on a vehicle script that will be able to move in any direction, using cosine and sine.
I have a little something made up, but it turns strange.
I'm not sure how to change this, or what I'm doing wrong. I've never played with cos and sin x_x

PHP Code:


		
			
//#CLIENTSIDE

function onKeypressed()

{

  if(params[1]=="D")

  {

    if(this.inuse==0)

    {

      this.speed=0;

      this.angle=0;

      this.friction=0;

      this.inuse=1;

      onTimeout();

    }

    else

    {

      this.inuse=0;

      setani("idle",NULL);

      freezeplayer(0);

      settimer(0);

    }

  }

}

function onTimeout()

{

  if(this.speed>0)

  {

    player.x+=this.speed*cos(this.angle);

    player.y+=-this.speed*sin(this.angle);

  }

  if(this.friction==3)

  {

    if(this.speed>0)

    {

      this.speed-=.05;

    }

    this.friction=0;

  }

  this.friction++;

  player.chat="Your: Speed: " @ this.speed @ " Angle: " @ this.angle @ " X: " @ abs(cos(this.angle)) @ " Y: " @ abs(sin(this.angle));

  freezeplayer(.05);

  if(keydown(0))

  {

    if(this.speed<0)

    {

      this.speed=0;

    }

    if(this.speed<3)

    {

      this.speed+=.25;

    }

  }

  if(keydown(1))

  {

    this.angle-=.05;

  }

  if(keydown(2))

  {

    this.speed--;

    this.speed=int(this.speed);

  }

  if(keydown(3))

  {

    this.angle+=.05;

  }

  degtorad(this.angle);

  settimer(.05);

}