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727
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1 var sys=require("sys");
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2
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3 function linear_draw() {
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4 if (this.end == 1) return;
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5 var percent = (Date.now() - this.starttime)/this.duration;
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6 if (percent > 1) percent = 1;
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728
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7 this.obj[2] = (this.targetx-this.startposx)*percent+this.startposx;
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8 this.obj[5] = (this.targety-this.startposy)*percent+this.startposy;
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727
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9 this.app.refresh();
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10 var self = this;
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11 if (percent < 1) {
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12 this.obj.timer=setTimeout(function() { self.draw();}, 20);
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13 return;
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14 }
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15 this.app.refresh();
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16 this.obj.animated_linear = null;
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17 }
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728
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18 function linear(app,obj,targetx,targety,duration) {
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727
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19 try {
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20 if (obj.animated_linear) {
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21 obj[5] = obj.animated_linear.target;
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22 obj.animated_linear.end = 1;
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23 }
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24 } catch(e) {
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25
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26 }
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27 obj.animated_linear = this;
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28 this.app = app;
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29 this.obj = obj;
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30 this.end = 0;
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31 this.starttime = Date.now();
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728
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32 this.startposx = obj[2];
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33 this.startposy = obj[5];
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34 this.targetx = targetx;
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35 this.targety = targety;
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727
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36 this.duration = duration*1000;
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37 }
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38
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39
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40 exports.linear = linear;
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41 linear.prototype.start = linear_draw;
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42 linear.prototype.draw = linear_draw;
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