advanced code snippet search

Posted By

onemanstudio on 05/18/11


Tagged

path distance track travel bezier trails trail traveled


Versions (?)

AS3 Trails

 / Published in: ActionScript 3
 

URL: http://onemanstudio.eu/labs/rabbitTrails

AS3 Trails, just call checkDistance() during Your Tween

Expand | Embed | Plain Text 
  1. package eu.onemanstudio
  2. {
  3. 	import flash.display.MovieClip;
  4. 	import flash.display.StageAlign;
  5. 	import flash.events.Event;
  6. 	import com.greensock.*; 
  7. 	import com.greensock.easing.*;
  8. 	import eu.onemanstudio.Arrow;
  9.  
  10.  
  11. 	/**
  12. 	 * ...
  13. 	 * @author [email protected]
  14. 	 */
  15. 	public class Main extends MovieClip 
  16. 	{
  17. 		private var countX:Number = 0;
  18. 		private var lastX:Number = 0;
  19. 		private var currentX:Number = 0;
  20. 		private var differenceX:Number = 0;
  21. 		private var countY:Number = 0;
  22. 		private var lastY:Number = 0;
  23. 		private var currentY:Number = 0;
  24. 		private var differenceY:Number = 0;
  25.  
  26. 		private var howMany:int = 20; // Trail every 20 pixels traveled
  27.  
  28. 		private var eMCe:Arrow; //Trail MovieClip
  29. 		private var mc:Arrow; //Traveler
  30.  
  31. 		public function Main():void 
  32. 		{
  33. 			if (stage) init();
  34. 			else addEventListener(Event.ADDED_TO_STAGE, init);
  35. 		}
  36.  
  37. 		private function init(e:Event = null):void 
  38. 		{
  39. 			removeEventListener(Event.ADDED_TO_STAGE, init);
  40. 			// entry point
  41. 			stage.align = StageAlign.TOP_LEFT;
  42.  
  43. 			mc = new Arrow();
  44. 			addChild(mc);
  45. 			mc.x = 600;
  46. 			mc.y = 30;
  47.  
  48. 			TweenMax.to(mc, 15, {bezierThrough:[{x:60, y:183}, {x:400, y:440}, {x:320, y:570}, {x:520, y:70}], delay:2, orientToBezier:true, onUpdate:checkDistance});
  49. 		}
  50.  
  51.  
  52.  
  53.  
  54. 		private function checkDistance():void
  55. 		{
  56. 			currentX = mc.x;
  57. 			if(lastX && lastX != 0)
  58. 			{
  59. 				differenceX = lastX - currentX;
  60. 				if (differenceX <= 0) differenceX = differenceX * -1;
  61. 			}
  62. 			lastX = currentX;
  63. 			if (differenceX != 0) countX += Number(differenceX);
  64.  
  65. 			if (countX >= howMany) trail();
  66.  
  67. 			currentY = mc.y;
  68. 			if(lastY && lastY != 0)
  69. 			{
  70. 				differenceY = lastY - currentY;
  71. 				if(differenceY <=0) differenceY = differenceY * -1;
  72. 			}
  73. 			lastY = currentY;
  74. 			if (differenceY != 0) countY += Number(differenceY);
  75.  
  76. 			if (countY >= howMany) trail();
  77. 		}
  78.  
  79. 		private function trail():void
  80. 		{
  81. 			eMCe = new Arrow();
  82. 			addChild(eMCe);
  83. 			eMCe.x = mc.x;
  84. 			eMCe.y = mc.y;
  85. 			eMCe.scaleX = eMCe.scaleY = 0.2;
  86. 			eMCe.rotation = mc.rotation;
  87. 			countY = 0;
  88. 			countX = 0;
  89.  
  90. 		}
  91.  
  92.  
  93.  
  94. 	}
  95.  
  96. }

Report this snippet  

You need to login to post a comment.