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Posted By

dhjapan on 03/28/08


Tagged

random duplicate


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Stars arround

Published in: ActionScript 

randomly duplicate a movie clip around a square

Plain TextExpand 
  1. staring = false;
  2. max_star = 10;
  3. current_star_num = 0;
  4. star_num = 0;
  5. square_w = 400;
  6. square_h = 200;
  7. alea = 40;
  8. this.onEnterFrame = function() {
  9. 	if(!staring || current_star_num >= max_star) return;
  10. 	var n_star = Math.round(Math.random()*1)+1;
  11. 	for(var i=0; i<=n_star; i++) {
  12. 		star_num++;
  13. 		current_star_num++;
  14. 		duplicateMovieClip(star_mc, "star" + star_num, star_num);
  15. 		var new_star = this["star" + star_num];
  16. 		// position
  17. 		new_star._x = Math.random()*(square_w+alea) - (alea/2);
  18. 		new_star._y = Math.random()*(square_h+alea) - (alea/2);
  19. 		if(Math.random()*2>0.5) new_star._x = (Math.round(Math.random()*2)%2)*square_w + Math.round(Math.random()*alea) - (alea/2); // horiz
  20. 		else new_star._y = (Math.round(Math.random()*2)%2)*square_h + Math.round(Math.random()*alea) - (alea/2); // vert
  21. 		new_star._alpha = 0;
  22. 		new_star._xscale = new_star._yscale = Math.round(Math.random()*50) + 50;
  23. 		new_star.speed = Math.round(Math.random()*10+3);
  24. 		new_star.way = "in";
  25. 		new_star.onEnterFrame = function () {
  26. 			if (this.way == "in") {
  27. 				this._alpha = Math.min(100, this._alpha+this.speed);
  28. 				speed = speed - Math.max(1,speed*.3);
  29. 				if(this._alpha == 100) this.way = "out";
  30. 			} else if (this.way == "out") {
  31. 				this._alpha = Math.max(0, this._alpha-this.speed);
  32. 				speed = speed + Math.min(10,speed*1.5);
  33. 				if(this._alpha == 0){
  34. 					current_star_num--;
  35. 					delete this.onEnterFrame;
  36. 					removeMovieClip(this);
  37. 				}
  38. 			}
  39. 		}
  40.  
  41. 	}
  42. }

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