Prototype of a Flash game like GearTaker

// constant to convert degrees to radians
degrees_to_radians = 0.0174532925;
// constant to convert radians to degrees
radians_to_degrees = 57.2957795;
// arrays storing cogs information: x position, y position and diameter
cog_x_position = Array(100, 400);
cog_y_position = Array(200, 200);
cog_diameter = Array(100, 100);
// diameter of the hero
hero_diameter = 24;
// speed of the hero, when he'll fly
hero_speed = 5;
// flag to determine if the hero has to rotate attached to the cog (true) or not (false)
rotate = true;
// cog where the hero will rotate. The starting one
cog_to_rotate = 0;
// offset to align the hero to the top of the inner circle of the cog
angle_offset = -Math.PI/2;
// cycle scanning through all cogs
for (x=0; x<cog_x_position.length; x++) {
	// attaching the cog
	wheel = _root.attachMovie("cog", "cog_"+x, x, {_x:cog_x_position[x], _y:cog_y_position[x], _width:cog_diameter[x], _height:cog_diameter[x]});
	// setting a random rotation speed for the cogs
	wheel.speed = Math.random()*20-10;
	wheel.onEnterFrame = function() {
		// update cog rotation according to its speed
		this._rotation += this.speed;
	};
}
// placing the hero on the screen
_root.attachMovie("hero", "hero", _root.getNextHighestDepth());
// function the hero will execute every frame
hero.onEnterFrame = function() {
	// if the hero is supposed to rotate sticked to the cog...
	if (rotate) {
		// determining hero's angle
		angle = (_root["cog_"+cog_to_rotate]._rotation)*degrees_to_radians+angle_offset;
		x = _root["cog_"+cog_to_rotate]._x;
		y = _root["cog_"+cog_to_rotate]._y;
		// no!!! this wont work
		//radius = (_root["cog_0"]._width+hero_diameter)/2;
		// yes !!
		radius = (cog_diameter[0]+hero_diameter)/2;
		// updating hero position
		this._x = x+Math.cos(angle)*radius;
		this._y = y+Math.sin(angle)*radius;
		// if the hero is flying
	} else {
		// updating hero's x and y position
		this._x += hero_speed*Math.cos(shooting_angle);
		this._y += hero_speed*Math.sin(shooting_angle);
		// scanning all cogs
		for (x=0; x<cog_x_position.length; x++) {
			// if it's not the cog the hero just left...
			if (x != cog_to_rotate) {
				// checking the distance bewteen the hero and the cog
				dist_x = _root["cog_"+x]._x-this._x;
				dist_y = _root["cog_"+x]._y-this._y;
				distance = Math.sqrt(dist_x*dist_x+dist_y*dist_y);
				// if the hero hits a cog
				if (distance<(cog_diameter[x]+hero_diameter)/2) {
					// time to calculate a new angle offset if you want
					// stick the hero to the cog
					cog_to_rotate = x;
					// make the hero rotate around the cog
					rotate = true;
				}
			}
		}
	}
};
// if the player presses the mouse
onMouseDown = function () {
	// checking hero's angle
	dist_x = hero._x-_root["cog_"+cog_to_rotate]._x;
	dist_y = hero._y-_root["cog_"+cog_to_rotate]._y;
	shooting_angle = Math.atan2(dist_y, dist_x);
	// dont' make the hero rotate sticked to the cog anymore
	rotate = false;
};