Debugging Listing 1 (ActionScript tutorial)

This is for use with the Debugging (ActionScript tutorial).

1 package { 2 3 import flash.display.DisplayObject; 4 import flash.display.Sprite; 5 6 import flash.events.Event; 7 import flash.events.TimerEvent; 8 9 import flash.filters.GlowFilter; 10 11 import flash.media.Sound; 12 13 import flash.utils.getTimer; // function import 14 import flash.utils.Timer; 15 16 import com.whirled.AvatarControl; 17 import com.whirled.ControlEvent; 18 19 // Text support 20 import flash.text.TextField; 21 import flash.text.TextFieldAutoSize; 22 23 [SWF(width="181", height="170")] 24 public class Rooster extends Sprite 25 { 26    /** 27      * Constructor. 28     */ 29     public function Rooster 30    { 31         // create and add the image 32        _image = (new IMAGE as DisplayObject); 33 34        // use the imageholder sprite to easily offset the image without 35        // having to worry about the image's offset ever again 36        var imageHolder :Sprite = new Sprite; 37        imageHolder.x = 10; 38        imageHolder.y = 10; 39        imageHolder.addChild(_image); 40        addChild(imageHolder); 41 42        // create the control for whirled communication 43        _control = new AvatarControl(this); 44        // add a listener for appearance updates 45        _control.addEventListener(ControlEvent.APPEARANCE_CHANGED, 46             handleAppearanceChanged); 47        // add a listener to hear about speak events 48        _control.addEventListener(ControlEvent.AVATAR_SPOKE, 49             handleSpoke); 50 51        // add custom actions and listen for custom action events 52        _control.registerActions("Beep", "Double Beep", "Test"); 53        _control.addEventListener(ControlEvent.ACTION_TRIGGERED, 54             handleAction); 55 56        // create our beep sound 57        _beep = (new BEEP as Sound); 58 59        // When we do speak, we're going to glow purple for 200ms, then stop 60        _speakTimer = new Timer(200, 1); 61        _speakTimer.addEventListener(TimerEvent.TIMER, doneSpeaking); 62 63        // We should erase the chatBox after a second 64        _chatBoxTimer = new Timer(1000, 1); 65        _chatBoxTimer.addEventListener(TimerEvent.TIMER, doneBeeping); 66        // Prepare message 67        _msg = new TextField; 68        _msg.border = true; 69        _msg.background = true; 70        _msg.autoSize = TextFieldAutoSize.LEFT; 71 72        // and kick things off by updating the appearance immediately 73        updateAppearance; 74    } 75 76     /** 77      * Handles ControlEvent.APPEARANCE_CHANGED. 78     */ 79     protected function handleAppearanceChanged (event :ControlEvent) :void 80    { 81         updateAppearance; 82    } 83 84     /** 85      * Update the appearance of this avatar. 86     */ 87     protected function updateAppearance  :void 88    { 89         var orientation :Number = _control.getOrientation; 90 91        // we assume that our image naturally faces left 92        if (orientation < 180) { 93            // we need to face right 94            _image.x = _image.width; 95            _image.scaleX = -1; 96 97        } else { 98            // normal facing 99            _image.x = 0; 100            _image.scaleX = 1; 101        } 102 103         // see if we need to update our bouncing 104        if (_bouncing != _control.isMoving) { 105            _bouncing = _control.isMoving; 106            if (_bouncing) { 107                addEventListener(Event.ENTER_FRAME, handleEnterFrame); 108                _bounceStamp = getTimer; 109 110            } else { 111                removeEventListener(Event.ENTER_FRAME, handleEnterFrame); 112                _image.y = 0; // reset to unbouncing 113            } 114         } 115     } 116 117     /** 118      * We've just spoken. Glow purple for a bit. 119     */ 120     protected function handleSpoke (event :ControlEvent) :void 121    { 122         // reset the timer, cancels any pending 'doneSpeaking' call. 123        _speakTimer.reset; 124 125        // only set up the filter if it hasn't already 126        if (this.filters == null || this.filters.length == 0) { 127            this.filters = [ new GlowFilter(0xFF00FF, 1, 10, 10) ]; 128        } 129         // start the timer 130        _speakTimer.start; 131    } 132 133     /** 134      * It's time to stop showing our speaking glow. 135     */ 136     protected function doneSpeaking (event :TimerEvent) :void 137    { 138         this.filters = null; 139    } 140 141     /** 142      * It's time to stop showing our chat box. 143     */ 144     protected function doneBeeping (event :TimerEvent) :void 145    { 146         /* Clear the container */ 147        _container.removeChild(_msg); 148    } 149 150     /** 151      * Called just prior to every frame that is rendered to screen. 152     */ 153     protected function handleEnterFrame (event :Event) :void 154    { 155         var now :Number = getTimer; 156        var elapsed :Number = getTimer - _bounceStamp; 157 158        // compute our bounce 159        _image.y = BOUNCE_AMPLITUDE * 160            Math.sin(elapsed * (Math.PI * 2) / BOUNCE_PERIOD); 161    } 162 163     /** 164      * Handle ACTION_TRIGGERED to play our custom actions. 165     */ 166     protected function handleAction (event :ControlEvent) :void 167    { 168 169         // Reset the chatBox timer in case an event is 170         // retriggered before the timer goes off. 171        _chatBoxTimer.reset; 172 173        switch (event.name) { 174        case "Beep": 175            _msg.text = "Beep" 176            _container.addChild(_msg); 177            _beep.play; 178            break; 179 180        case "Double Beep": 181            _beep.play(0, 2); 182            break; 183 184        default: 185            trace("Unknown action: " + event.name); 186            break; 187        } 188         _chatBoxTimer.start; 189    } 190 191     /** The image we're displaying. */ 192    protected var _image :DisplayObject; 193 194    /** Our beep sound. */ 195    protected var _beep :Sound; 196 197    /** The avatar control interface. */ 198    protected var _control :AvatarControl; 199 200    /** Controls the timing of our speak action. */ 201    protected var _speakTimer :Timer; 202 203    /** Controls the timing of our chat box. */ 204    protected var _chatBoxTimer :Timer; 205 206    /** Message variable and a container for the message */ 207    protected var _msg :TextField; 208    protected var _container :Sprite; 209 210    /** Are we bouncing? */ 211    protected var _bouncing :Boolean; 212 213    /** The timestamp at which we started bouncing. */ 214    protected var _bounceStamp :Number; 215 216    /** The amplitude of our bounce, in pixels. */ 217    protected static const BOUNCE_AMPLITUDE :int = 10; 218 219    /** The period of our bounce: we do one bounce every 500 milliseconds. */ 220    protected static const BOUNCE_PERIOD :int = 500; 221 222    /** The embedded image class. */ 223    [Embed(source="Rooster.png")] 224    protected static const IMAGE :Class; 225 226    [Embed(source="beep.mp3")] 227    protected static const BEEP :Class; 228 } 229 230 } // END: package