Bubble.hx

package;

import flash.MovieClip;

class Bubble {
    // Set this to true when the bubble is 'created'.
    // Set it to false when the bubble is popped.
    public var active:Bool;

    var movieClip:MovieClip;

    public function new(parentMovieClip:MovieClip) {
        active = false;

        var depth = parentMovieClip.getNextHighestDepth();
        movieClip = parentMovieClip.createEmptyMovieClip("Bubble" + depth, depth);
    }

    public function update() {
        // Call this once per frame to update the Bubble (only if it is active).
    }

    public function render() {
        // Call this once per frame to render the Bubble (only if it is active).
        // Draw to movieClip here.
    }
}

Main.hx

package;

import flash.MovieClip;

class Main {
    static inline var MAX_BUBBLES = 512;

    var bubbles:Array<Bubble>;

    public function new(display:MovieClip) {
        bubbles = [];

        for (i in 0...MAX_BUBBLES) {
            bubbles.push(Bubble.create(display));
        }
    }

    public function run() {
        // Set up a game loop and gameplay logic here
    }

    static function main() {
        new Main(flash.Lib._root).run();
    }
}