github.com/hobbeswalsh/terraform@v0.3.7-0.20150619183303-ad17cf55a0fa/website/source/assets/javascripts/app/Engine.Polygon.js (about)

     1  (function(
     2  	Engine,
     3  	Vector
     4  ){
     5  
     6  Engine.Polygon = function(a, b, c, color, strokeColor){
     7  	this.a = a;
     8  	this.b = b;
     9  	this.c = c;
    10  
    11  	this.color = Engine.clone(color);
    12  	this.strokeColor = strokeColor ? Engine.clone(strokeColor) : Engine.clone(color);
    13  
    14  	if (strokeColor) {
    15  		this.strokeColor = Engine.clone(strokeColor);
    16  	} else {
    17  		this.strokeColor = Engine.clone(color);
    18  	}
    19  
    20  	this.strokeWidth = 0.25;
    21  	this.maxStrokeS = this.strokeColor.s;
    22  	this.maxStrokeL = this.strokeColor.l;
    23  	this.maxColorL  = this.color.l;
    24  
    25  	this.strokeColor.s = 0;
    26  	this.strokeColor.l = 100;
    27  	this.color.l = 0;
    28  
    29  	this.fillStyle = this.hslaTemplate.substitute(this.color);
    30  	this.strokeStyle = this.hslaTemplate.substitute(this.strokeColor);
    31  };
    32  
    33  Engine.Polygon.prototype = {
    34  
    35  	rgbaTemplate: 'rgba({r},{g},{b},{a})',
    36  	hslaTemplate: 'hsla({h},{s}%,{l}%,{a})',
    37  
    38  	hueShiftSpeed: 20,
    39  	duration: 2,
    40  	delay: 0,
    41  	start: 0,
    42  
    43  	// Determine color fill?
    44  	update: function(engine){
    45  		var delta;
    46  
    47  		if (this.simple) {
    48  			return;
    49  		}
    50  
    51  		this.start += engine.tick;
    52  
    53  		delta = this.start;
    54  
    55  		if (
    56  			delta > this.delay &&
    57  			delta < this.delay + this.duration + 1 &&
    58  			this.color.l < this.maxColorL
    59  		) {
    60  			this.color.l = this.maxColorL * (delta - this.delay) / this.duration;
    61  
    62  			this.strokeColor.s = this.maxStrokeS * (delta - this.delay) / this.duration;
    63  			this.strokeColor.l = (this.maxStrokeL - 100) * (delta - this.delay) / this.duration + 100;
    64  
    65  			this.strokeWidth = 1.5 * (delta - this.delay) / this.duration + 0.25;
    66  
    67  			if (this.color.l > this.maxColorL) {
    68  				this.color.l = this.maxColorL;
    69  				this.strokeColor.l = this.maxStrokeL;
    70  				this.strokeWidth = 1.5;
    71  			}
    72  
    73  			this.strokeStyle = this.hslaTemplate.substitute(this.strokeColor);
    74  			this.fillStyle = this.hslaTemplate.substitute(this.color);
    75  		}
    76  	}
    77  
    78  };
    79  
    80  })(window.Engine, window.Vector);