[Sommaire] [Imprimer]

   1  /*
   2      DynAPI Distribution
   3      Glide Animation Extension
   4  
   5      The DynAPI Distribution is distributed under the terms of the GNU LGPL license.
   6  
   7      requires: DynLayer, dynapi.functions.Math
   8  */
   9  
  10  function Thread(dlyr) {
  11      this.DynObject = DynObject;
  12      this.DynObject();
  13      
  14      if (dlyr) this.dlyr = dlyr;
  15      else dlyr = this;  // if no dynlayer passed it calls events onto itself
  16      
  17      this._frame = 0;
  18      this._path = null;
  19      this.loop = false;
  20  }
  21  var p = dynapi.setPrototype('Thread','DynObject');
  22  p.interval = 20;
  23  p.sleep = function (ms) {
  24      this.interval = Math.abs(parseInt(ms));
  25      if (this._timer) this.start();
  26  };
  27  p._restart = function () { // starts, or restarts if necessary
  28      this.stop(false);
  29      setTimeout(this+'.start()',this.interval+1);
  30  };
  31  p.start = function () { // starts, or restarts if necessary
  32      if (this._timer) this._restart();
  33      else {
  34          this.dlyr.invokeEvent("threadstart");
  35          this._timer = setInterval(this+'.run()',this.interval);
  36      }
  37  };
  38  p.run = function () {
  39      var p=this._path, d=this.dlyr;
  40      this.dlyr.invokeEvent("threadrun");
  41      if (p && this.dlyr!=this && this._timer) {
  42          if (this._frame>=p.length/2) {
  43              if (this.loop) this._frame = 0;
  44              else {
  45                  this.stop(false);
  46                  this.dlyr.invokeEvent("threadfinish");
  47                  return;
  48              }
  49          }
  50          if (this._frame==0 && (d.x==p[0] && d.y==p[1])) this.frame += 1; // already at 1st coordinate        
  51          d.setLocation(p[this._frame*2],p[this._frame*2+1]);
  52          this._frame++;
  53      }
  54  };
  55  p.stop = function (noevt) {
  56      clearInterval(this._timer);
  57      this._timer = null;
  58      this._frame = 0;
  59      if (noevt!=false) this.dlyr.invokeEvent("threadstop");
  60  };
  61  p.play = function (path) {
  62      this._path = path;
  63      this.start();
  64  };