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Study for EventDispatcher

/ Published in: ActionScript
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A CountEvent class’s instance counts up from 0 to 50, then dispatches "countComplete" event. Here’s a result below.

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Count Complete

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  1. // EventTest.as
  2.  
  3. class EventTest extends MovieClip {
  4. 	var countEvent:MovieClip;
  5.  
  6. 	public function EventTest() {
  7. 		countEvent = this.attachMovie(
  8. 			"countEvent",
  9. 			"countEvent",
  10. 			this.getNextHighestDepth()
  11. 		);
  12. 		countEvent.addEventListener("countComplete", this.countComplete);
  13. 		countEvent.startCount();
  14. 	}
  15.  
  16. 	public function countComplete(event:Object):Void {
  17. 		trace("Count Complete");
  18. 	}
  19. }
  20.  
  21. //----------------- separated files -----------------
  22.  
  23. // CountEvent.as
  24.  
  25. import mx.events.EventDispatcher;
  26.  
  27. dynamic class CountEvent extends MovieClip {
  28. 	var counter:Number;
  29. 	var max:Number;
  30.  
  31. 	public function CountEvent() {
  32. 		EventDispatcher.initialize(this);
  33. 		counter = 0;
  34. 		max = 50;
  35. 	}
  36.  
  37. 	public function startCount():Void {
  38. 		this.onEnterFrame = function():Void {
  39. 			counter++;
  40. 			trace(counter);
  41. 			if(counter >= max) {
  42. 				delete this.onEnterFrame;
  43. 				this.dispatchEvent({type: "countComplete"});
  44. 			}
  45. 		}
  46. 	}
  47. }

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