Racing Game

Make a movieclip. Set var to car and put this in it:

onClipEvent (load) {
onClipEvent (enterFrame) {
	//This code will advance the car forward.
	if (Key.isDown(Key.UP)) {
		speed += 1;
	} else {
		// This will make the car go backwards
		if (Key.isDown(Key.DOWN)) {
			speed -= 1;
		} else {
			speed *= .1
		}
	}
	//The car will start to slow down after the speed of 25
	if (Math.abs(speed)>2) {
		speed *= .1;
	}
	// This will change the angle of the car
	if (Key.isDown(Key.LEFT)) {
		_rotation -= 4;
	}
	if (Key.isDown(Key.RIGHT)) {
		_rotation += 4;
	}
	// This will make the car move
	speed *= .9;
	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 *= -.3;
	}
 // here is where the hittest is for the boundary
 speed *= .99;
 x = Math.sin(_rotation*(Math.PI/180))*speed;
 y = Math.cos(_rotation*(Math.PI/180))*speed*-1;
 if (!_root.top.hitTest(_x+x, _y+y, true)) {
 _x += x;
 _y += y;
 } else {
 speed *= -.6;
 }
  x = Math.sin(_rotation*(Math.PI/180))*speed;
 y = Math.cos(_rotation*(Math.PI/180))*speed*-1;
 if (!_root.wall.hitTest(_x+x, _y+y, true)) {
 _x += x;
 _y += y;
 } else {
 speed *= -.6;
 }

Make a boundry and set var to wall. If you want more than one wall then add this to the end of the code in the car:

  x = Math.sin(_rotation*(Math.PI/180))*speed;
 y = Math.cos(_rotation*(Math.PI/180))*speed*-1;
 if (!_root.wall.hitTest(_x+x, _y+y, true)) {
 _x += x;
 _y += y;
 } else {
 speed *= -.6;
 }

Change wall to the var of the second or third wall and now you're ready to play it...if you did it right!

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