package
{
        import flash.display.Sprite;

        public class @ax-lib-flex-animation-code-01-GridCollision-Ball extends Sprite
        {
                private var _color:uint;
                private var _radius:Number;
                private var _vx:Number = 0;
                private var _vy:Number = 0;
                
                
                public function @ax-lib-flex-animation-code-01-GridCollision-Ball(radius:Number, color:uint = 0xffffff)
                {
                        _radius = radius;
                        _color = color;
                        draw();
                }
                
                private function draw():void
                {
                        // draw a circle with a dot in the center
                        graphics.clear();
                        graphics.lineStyle(0);
                        graphics.beginFill(_color, 1);
                        graphics.drawCircle(0, 0, _radius);
                        graphics.endFill();
                        graphics.drawCircle(0, 0, 1);
                }
                
                public function update():void
                {
                        // add velocity to position
                        x += _vx;
                        y += _vy;
                }
                
                public function set color(value:uint):void
                {
                        _color = value;
                        draw();
                }
                
                public function get color():uint
                {
                        return _color;
                }
                
                public function set radius(value:Number):void
                {
                        _radius = value;
                        draw();
                }
                
                public function get radius():Number
                {
                        return _radius;
                }
                
                public function set vx(value:Number):void
                {
                        _vx = value;
                }
                
                public function get vx():Number
                {
                        return _vx;
                }
                
                public function set vy(value:Number):void
                {
                        _vy = value;
                }
                
                public function get vy():Number
                {
                        return _vy;
                }
                
        }}