# Speed and direction with a MC

**URL:** <https://forum.kirupa.com/t/speed-and-direction-with-a-mc/147950>\
**Category:** Uncategorized\
**Created:** [May 15, 2005, 8:41pm UTC](https://forum.kirupa.com/t/speed-and-direction-with-a-mc/147950 "2005-05-15T20:41:24Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![spamstinks](https://avatars.discourse-cdn.com/v4/letter/s/c0e974/32.png) [@spamstinks](https://forum.kirupa.com/u/spamstinks)\
**Post date:** [May 15, 2005, 8:41pm UTC](https://forum.kirupa.com/t/speed-and-direction-with-a-mc/147950/1 "2005-05-15T20:41:24Z")

</div>

I am having a problem with this actionscript, i post it on my mc but it doesnt work. (except for the turning it just wont go forward or back)

[color=royalblue]CODE:[/color]  
[color=#4169e1][/color]  
[color=royalblue]onClipEvent (enterFrame) {  
//This code will advance the car forward.  
if (Key.isDown(Key.UP)) {  
speed += 1;  
}  
// This will make the car go backwards  
if (Key.isDown(Key.DOWN)) {  
speed -= 1;  
}  
//The car will start to slow down after the speed of 25  
if (Math.abs(speed)\>25) {  
speed \*= .6;  
}  
// This will change the angle of the car  
if (Key.isDown(Key.LEFT)) {  
\_rotation -= 10;  
}  
if (Key.isDown(Key.RIGHT)) {  
\_rotation += 10;  
}  
// This will make the car move  
speed _= .98;  
x = Math.sin(\_rotation_(Math.PI/180))_speed;  
y = Math.cos(\_rotation_(Math.PI/180))_speed_-1;  
if (!\_root.move.hitTest(\_x+x, \_y+y, true)) {  
\_x += x;  
\_y += y;  
} else {  
speed \*= -.6;  
}  
}

[/color]