[Sommaire] [Imprimer]

   1  /*
   2      DynAPI Distribution
   3      ImageAnimation Class
   4  
   5      The DynAPI Distribution is distributed under the terms of the GNU LGPL license.
   6  
   7      requires: Thread
   8  */
   9  
  10  function ImageAnimation(dynimage) {
  11      this.Thread = Thread;
  12      this.Thread(dynimage);
  13  
  14      this.imgAnim = new Array();
  15      this.imgAnim.playing = null;
  16  }
  17  var p = dynapi.setPrototype('ImageAnimation','Thread');
  18  p.addAnimation = function (imgArray) {
  19      var animNum = this.imgAnim.length;
  20      this.imgAnim[animNum] = imgArray;
  21      this.imgAnim[animNum].loops = false;
  22      this.imgAnim[animNum].resets = false;
  23      this.imgAnim[animNum].frame = 0;
  24      this.imgAnim[animNum].playing = true;
  25      this.imgAnim[animNum].direction = 0;
  26      this.imgAnim[animNum].alternates = false;
  27      return animNum;
  28  };
  29  p.getFrame = function (animNum,frameNum) {
  30      return this.imgAnim[animNum][frameNum];
  31  };
  32  
  33  p.setLoops = function (animNum,loop) {
  34      this.imgAnim[animNum].loops = loop;
  35  };
  36  p.setResets = function (animNum) {
  37      this.imgAnim[animNum].resets = true;
  38  };
  39  p.setAlternates = function (animNum,alt) {
  40      this.imgAnim[animNum].loops = true;
  41      this.imgAnim[animNum].alternates = alt;
  42  };
  43  
  44  p.playAnimation = function (animNum) {
  45      if (animNum!=null && this.imgAnim.playing!=animNum) {
  46          this.playing = true;
  47          this.imgAnim.playing = animNum;
  48          if (this.dlyr!=null) this.dlyr.invokeEvent("imgstart");
  49          this.start();
  50      }
  51  };
  52  p.stopAnimation = function () {
  53      this.imgAnim.playing = null;
  54      this.playing = false;
  55      this.stop();
  56      if (this.dlyr!=null) this.dlyr.invokeEvent("imgrun");
  57  };
  58  p.run = function () {
  59      if (!this.playing || this.imgAnim.playing==null || this.dlyr==null) return;
  60      
  61      var anim = this.imgAnim[this.imgAnim.playing];
  62      
  63      if (anim.frame==0 && this.img==anim[anim.frame]) {
  64          anim.frame++;    // skip 1st frame if same
  65      }
  66      if (this.dlyr!=null) this.dlyr.invokeEvent("imgrun");
  67      this.dlyr.setImage(anim[anim.frame]);
  68      
  69      if (anim.frame>=anim.length-1) {
  70          if (anim.loops) {
  71              if (anim.alternates && anim.direction==0 && anim.frame==anim.length-1) {
  72                  anim.direction = 1; 
  73                  anim.frame = anim.length-2;
  74              }
  75              else anim.frame = 0;
  76          }
  77          else if (anim.resets) {
  78              anim.frame = 0;
  79              this.stop();
  80          }
  81          else {
  82              this.stop();
  83          }
  84      }
  85      else {
  86          if (anim.alternates) {
  87              if (anim.frame==0 && anim.direction==1) {
  88                  anim.direction = 0;
  89                  anim.frame = 1;
  90              }
  91              else if (anim.direction==0) {
  92                  anim.frame++;
  93              }
  94              else if (anim.direction==1) {
  95                  anim.frame--;
  96              }
  97          }
  98          else {
  99              anim.frame++;
 100          }
 101      }
 102  };