Frame 1
	grav = 0.2;
	car = new Object();
	car.spd = 0.2;
	car.max_spd = 10;
	car.acc = 0;
	car.yv = 0;
	car.xv = 0;
	car.w_rad = 15;
	car.w_frc = 0.98;
	car.fric = 0.99;
	car.w_dis = 53;
	car.w_cir = (2 * car.w_rad) * Math.PI;
	w1.spd = 0;
	w1.xv = 0;
	w1.yv = 0;
	w1.slope = 0;
	w2.spd = 0;
	w2.xv = 0;
	w2.yv = 0;
	w2.slope = 0;
	w1.x = w1._x;
	w2.x = w2._x;
	frame.swapDepths(2);
	track_dis = 10000;
	track_int = 200;
	vects = track_dis / track_int;
	g_height = 340;
	g_rand = 50;
	flag.swapDepths(_root.getNextHighestDepth());
	sflag.swapDepths(_root.getNextHighestDepth());
	xs = 0;
	alpha = (Math.PI/180);

	generate_terrain = function () {
		old_height = (g_height + random(g_rand)) - random(g_rand);
		i = 0;
		while (i < vects) {
			rand_h = (g_height + random(g_rand)) - random(g_rand);
			this["v" + i] = {p0:{x:i * track_int, y:old_height}, p1:{x:(i + 1) * track_int, y:rand_h}};
			old_height = rand_h;
			i++;
		}
		this["v" + (vects - 3)].p1.y = this["v" + (vects - 3)].p0.y - 20;
		this["v" + (vects - 2)].p0.y = this["v" + (vects - 3)].p1.y;
		this["v" + (vects - 2)].p1.y = this["v" + (vects - 2)].p0.y - 40;
		this["v" + (vects - 1)].p0.y = this["v" + (vects - 2)].p1.y;
		this["v" + (vects - 1)].p1.y = this["v" + (vects - 1)].p0.y - 60;
		fv = this["v" + (vects - 3)];
		flag._rotation = Math.atan2(fv.p1.y - fv.p0.y, fv.p1.x - fv.p0.x) / (Math.PI/180);
		flag.x = fv.p0.x;
		slag.x = v2.p0.x;
	};
	draw_ground = function () {
		line = _root.createEmptyMovieClip("line", 1);
		line.lineStyle(1, 0, 100);
		line.beginFill(6710886, 100);
		if (vector_mn < 0) {
			vector_mn = 0;
			line.moveTo(v0.p0.x - xs, 400);
		}
		if (vector_mx >= vects) {
			vector_mx = vects - 1;
		}
		line.moveTo(this["v" + vector_mn].p0.x - xs, 400);
		i = vector_mn;
		while (i <= vector_mx) {
			v = this["v" + i];
			line.lineTo(v.p0.x - xs, v.p0.y);
			line.lineTo(v.p1.x - xs, v.p1.y);
			i++;
		}
		line.lineTo(this["v" + vector_mx].p1.x - xs, 400);
		line.endFill();
		flag._y = fv.p0.y;
		slag._y = v2.p0.y;
	};
	onMouseDown = function () {
		drag_vect = Math.round((xs + _root._xmouse) / track_int);
		if (Math.abs(this["v" + drag_vect].p1.y - this["v" + (drag_vect + 1)].p0.y) < 100) {
			if (_root._xmouse <= ((this["v" + drag_vect].p0.x - xs) + (track_int / 2))) {
				this["v" + drag_vect].p0.y = _root._ymouse;
				this["v" + (drag_vect - 1)].p1.y = _root._ymouse;
			} else {
				this["v" + drag_vect].p1.y = _root._ymouse;
				this["v" + (drag_vect + 1)].p0.y = _root._ymouse;
			}
		}
	};

	generate_terrain();
	onEnterFrame = function () {
		per_done = Math.round((xs / track_dis) * 100);
		if ((per_done <= 100) && (per_done >= 0)) {
			track_per = ("Completed: " + per_done) + "%";
		} else if (per_done > 100) {
			track_per = "Completed: 100%";
		} else {
			track_per = "Completed: 0%";
		}
		if (Key.isDown(37)) {
			car.acc = (-car.spd) / 2;
		} else if (Key.isDown(39)) {
			car.acc = car.spd;
		} else {
			car.acc = 0;
		}
		if (w1.spd > car.max_spd) {
			w1.spd = car.max_spd;
			w2.spd = car.max_spd;
		}
		if (w1.spd < (-(car.max_spd / 2))) {
			w1.spd = -(car.max_spd / 2);
			w2.spd = -(car.max_spd / 2);
		}
		j = 1;
		while (j <= 2) {
			ob = this["w" + j];
			ob.ground = 0;
			vector_mn = Math.floor(xs / track_int);
			vector_mx = Math.round((xs + 550) / track_int);
			i = vector_mn;
			while (i <= vector_mx) {
				v = this["v" + i];
				vx = (v.p1.x - xs) - (v.p0.x - xs);
				vy = v.p1.y - v.p0.y;
				slope = vy / vx;
				xd = ob.x - (v.p0.x - xs);
				ground = v.p0.y + (xd * slope);
				if (((((ob._y + car.w_rad) + ob.yv) >= ground) && (ob.x >= (v.p0.x - xs))) && (ob.x < (v.p1.x - xs))) {
					ob.ground = 1;
					ob._y = ground - car.w_rad;
					w1.spd = w1.spd + ((slope / 5) * car.fric);
					w2.spd = w1.spd;
					w1.vx = vx;
					w1.vy = vy;
				}
				i++;
			}
			ob.spd = ob.spd + car.acc;
			if (ob.ground) {
				ob.dir = Math.atan2(w1.vy, w1.vx) / alpha;
				ob.xv = ob.spd * Math.cos(ob.dir * alpha);
				ob.yv = ob.spd * Math.sin(ob.dir * alpha);
				ob.spd = ob.spd * car.w_frc;
			}
			xs = xs + ob.xv;
			ob.yv = ob.yv + grav;
			ob._y = ob._y + ob.yv;
			ob._rotation = ob._rotation + ((ob.spd / car.w_cir) * 360);
			j++;
		}
		body.ro = Math.atan2(w2._y - w1._y, w2._x - w1._x);
		body._rotation = body.ro / alpha;
		w_xd = w2._x - w1._x;
		w_yd = w2._y - w1._y;
		w_dis = Math.sqrt((w_xd * w_xd) + (w_yd * w_yd));
		w2._x = w1._x + (Math.cos(body._rotation * alpha) * car.w_dis);
		w2._y = w1._y + (Math.sin(body._rotation * alpha) * car.w_dis);
		body._x = w1._x;
		body._y = w1._y;
		draw_ground();
		flag._x = flag.x - xs;
		slag._x = slag.x - xs;
	};
Symbol 12 Button
on (release) {
	vects = track_dis / track_int;
	generate_terrain();
	xs = 0;
	w1.spd = (w2.spd = 0);
	w1.xv = (w2.xv = 0);
}