movieclip not sprite

hi all,

i am hoping someone can give me a clue on how to swap the sprite instance for a movieclip via the document class.

this a boid example from soulwire, and works great but i want to use a library clip instead of the vector sprite - for arguments sake - the library clip would be "boid"...

PHP Code:

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package  
{
    import soulwire.ai.Boid;

    import flash.display.Sprite;
    import flash.events.Event;
    import flash.geom.Vector3D;

    /**
     * Demo
     */

    [SWF(width="800", height="600", backgroundColor="#FFFFFF", frameRate="31")]
    public class AbstractDemo extends Sprite 
    {
        protected var _boids : Vector.<Boid> = new Vector.<Boid>();
        protected var _boidHolder : Sprite;

        protected var _config : Object = {
                                            minForce:3.0,
                                            maxForce:6.0,
                                            minSpeed:6.0,
                                            maxSpeed:12.0,
                                            minWanderDistance:10.0,
                                            maxWanderDistance:100.0,
                                            minWanderRadius:5.0,
                                            maxWanderRadius:20.0,
                                            minWanderStep:0.1,
                                            maxWanderStep:0.9,
                                            boundsRadius:250,
                                            numBoids:120
                                            };

        public function AbstractDemo()
        {
            _boidHolder = addChild(new Sprite()) as Sprite;
            addEventListener(Event.ADDED_TO_STAGE, onAddedToStage);
        }
        
        protected function init():void
        {
            // Init
        }

        protected function createBoid() : Boid
        {
            var boid : Boid = new Boid();
            
            setProperties(boid);
            boid.renderData = boid.createDebugShape( 000000, 4.0, 2.0);
            
            _boids.push(boid);
            _boidHolder.addChild(boid.renderData);
            
            return boid;
        }

        protected function createBoids(count : int):void
        {
            for (var i : int = 0;i < count; i++)
            {
                createBoid();
            }
        }

        protected function setProperties(boid : Boid) : void
        {
            boid.edgeBehavior = Boid.EDGE_BOUNCE;
            boid.maxForce = random(_config.minForce, _config.maxForce);
            boid.maxSpeed = random(_config.minSpeed, _config.maxSpeed);
            boid.wanderDistance = random(_config.minWanderDistance, _config.maxWanderDistance);
            boid.wanderRadius = random(_config.minWanderRadius, _config.maxWanderRadius);
            boid.wanderStep = random(_config.minWanderStep, _config.maxWanderStep);
            boid.boundsRadius = stage.stageWidth * 0.6;
            boid.boundsCentre = new Vector3D(stage.stageWidth >> 1, stage.stageHeight >> 1, 0.0);
            
            if(boid.x == 0 && boid.y == 0)
            {
                boid.x = boid.boundsCentre.x + random(-100, 100);
                boid.y = boid.boundsCentre.y + random(-100, 100);
                boid.z = random(-100, 100);
                
                var vel : Vector3D = new Vector3D(random(-2, 2), random(-2, 2), random(-2, 2));
                boid.velocity.incrementBy(vel);
            }
        }

        protected function random( min : Number, max : Number = NaN ) : Number
        {
            if ( isNaN(max) )
            {
                max = min;
                min = 0;
            }
            
            return Math.random() * ( max - min ) + min;
        }

        protected function updateBoid(boid : Boid, index : int) : void
        {
            // Override
        }

        protected function step(event : Event = null) : void
        {
            for (var i : int = 0;i < _boids.length; i++)
            {
                updateBoid(_boids[i], i);
            }
        }

        protected function onAddedToStage(event : Event) : void
        {
            removeEventListener(Event.ADDED_TO_STAGE, onAddedToStage);
            addEventListener(Event.ENTER_FRAME, step);
            init();
        }
    }
} 


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i know that i need to add

PHP Code:

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    import flash.display.Movieclip; 


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but am not able to work out what i need to add/edit...

any ideas folks?
:confused:

Which thing are you trying to replace?
If you mean you want to replace Boid with something, then you'll have to either change the definition of Boid or extend it with a new class. Boid is not just graphics, it has properties and methods that this class relies on.