package {
    import SteeredVehicle;
    import Vector2D;
    import Vehicle;
    import flash.display.Sprite;
    import flash.display.StageAlign;
    import flash.display.StageScaleMode;
    import flash.events.Event;
    import flash.text.TextField;
    import flash.text.TextFormat;
     
    public class SeekFleeTest1 extends Sprite {
        private var _seeker:SteeredVehicle;//寻找者(可理解为：警察)
        private var _fleer:SteeredVehicle;//躲避者(事理解为：小偷)
        private var _seekerSpeedSlider:SimpleSlider ;//警察的最大速度控制滑块
        private var _txtSeekerMaxSpeed:TextField;
        private var _fleerSpeedSlider:SimpleSlider ;//小偷的最大速度控制滑块
        private var _txtFleerMaxSpeed:TextField;
         
        public function SeekFleeTest1() {
            stage.align=StageAlign.TOP_LEFT;
            stage.scaleMode=StageScaleMode.NO_SCALE;
             
            _seeker = new SteeredVehicle(0xff0000);
            _seeker.position=new Vector2D();
            _seeker.edgeBehavior=Vehicle.BOUNCE;
            addChild(_seeker);
            _seeker.maxSpeed = 5;
             
            _fleer = new SteeredVehicle(0x0000ff);
            _fleer.position=new Vector2D(stage.stageWidth*Math.random(),stage.stageHeight*Math.random());
            _fleer.edgeBehavior=Vehicle.BOUNCE;
            addChild(_fleer);
            addEventListener(Event.ENTER_FRAME, onEnterFrame);
             
             
            addSpeedControl();
        }
         
        //添加速度控制组件
        private function addSpeedControl():void{
            _seekerSpeedSlider = new SimpleSlider(5,25,10);
            _seekerSpeedSlider.rotation = 90;
            _seekerSpeedSlider.x = 150;
            _seekerSpeedSlider.y = 20;
            _seekerSpeedSlider.backColor = _seekerSpeedSlider.backBorderColor = _seekerSpeedSlider.handleColor = _seekerSpeedSlider.handleBorderColor =  0xff0000;
            addChild(_seekerSpeedSlider);
            _seekerSpeedSlider.addEventListener(Event.CHANGE,onSeekerSpeedChange); 
            _txtSeekerMaxSpeed = new TextField();
            var _tfseeker:TextFormat = new TextFormat();
            _tfseeker.color = 0xff0000;
            _txtSeekerMaxSpeed.defaultTextFormat = _tfseeker;
            _txtSeekerMaxSpeed.text = "10";
            addChild(_txtSeekerMaxSpeed);
            _txtSeekerMaxSpeed.y = _seekerSpeedSlider.y -6;
            _txtSeekerMaxSpeed.x = _seekerSpeedSlider.x +3;
             
             
             
            _fleerSpeedSlider = new SimpleSlider(5,25,10);
            _fleerSpeedSlider.rotation = 90;
            _fleerSpeedSlider.x = 480;
            _fleerSpeedSlider.y = 20;
            _fleerSpeedSlider.backColor = _fleerSpeedSlider.backBorderColor = _fleerSpeedSlider.handleColor = _fleerSpeedSlider.handleBorderColor =  0x0000ff;
            addChild(_fleerSpeedSlider);
            _fleerSpeedSlider.addEventListener(Event.CHANGE,onFleerSpeedChange); 
            _txtFleerMaxSpeed = new TextField();            
            var _tffleer:TextFormat = new TextFormat();
            _tffleer.color = 0x0000ff;          
            _txtFleerMaxSpeed.defaultTextFormat = _tffleer;
            _txtFleerMaxSpeed.text = "10";
            addChild(_txtFleerMaxSpeed);
            _txtFleerMaxSpeed.y = _fleerSpeedSlider.y -6;
            _txtFleerMaxSpeed.x = _fleerSpeedSlider.x +3;
             
        }
         
        public function onSeekerSpeedChange(e:Event):void{
            _seeker.maxSpeed = _seekerSpeedSlider.value;
            _txtSeekerMaxSpeed.text = _seekerSpeedSlider.value.toString();
        }
         
        public function onFleerSpeedChange(e:Event):void{
            _fleer.maxSpeed = _fleerSpeedSlider.value;
            _txtFleerMaxSpeed.text = _fleerSpeedSlider.value.toString();
        }
         
        private function onEnterFrame(event:Event):void {
            _seeker.seek(_fleer.position);//警察 抓 小偷
            _fleer.flee(_seeker.position);//小偷 躲 警察
            _seeker.update();
            _fleer.update();
        }       
    }
}