92 lines
2.3 KiB
JavaScript
92 lines
2.3 KiB
JavaScript
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/**
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*
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* @authors yutent (yutent@doui.cc)
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* @date 2017-03-17 20:55:57
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*
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*/
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"use strict";
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// 1216fc0c668c09ade029ceae6db87f97cf560e21
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define(function(){
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var Avatar = function(){
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this.sum = function(arr){
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var sum = 0;
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arr.forEach(function(it){
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sum -= -it
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})
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}
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};
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Avatar.prototype = {
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get: function(hash, size){
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if(!hash)
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return this.defafultImg;
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if(!size || size < 100){
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size = 100
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}
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var cv = document.createElement('canvas'),
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ct = cv.getContext('2d'),
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bg = hash.slice(-3),
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color = hash.slice(-9, -6),
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fixColor = color,
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lens = hash.slice(0, 8).match(/([\w]{1})/g),
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pos1 = hash.slice(8, 16).match(/([\w]{1})/g),
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pos2 = hash.slice(16, 24).match(/([\w]{1})/g),
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step = size / 10;
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cv.width = size;
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cv.height = size;
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lens = lens.map(c => {
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c = parseInt(c, 16);
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return c % 8
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})
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pos1 = pos1.map(c => {
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c = parseInt(c, 16);
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return c % 4
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})
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pos2 = pos2.map(c => {
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c = parseInt(c, 16);
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return c % 4
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})
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fixColor = this.sum(lens) > 32 ? bg : color;
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ct.fillStyle = '#' + bg;
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ct.fillRect(0, 0, size, size)
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for(var i = 1; i < 9; i++){
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var xl = lens[i-1],
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xp1 = pos1[i-1],
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xp2 = pos2[i-1];
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if(xl + xp1 > 8){
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xl = 8 - xp1
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}
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ct.fillStyle = '#' + color;
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ct.fillRect((xp1 + 1) * step, i * step, xl * step, step)
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ct.fillStyle = '#' + color;
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ct.fillRect((9 - xp1 - xl) * step, i * step, xl * step, step)
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ct.fillStyle = '#' + fixColor;
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ct.fillRect((xp2 + 1) * step, i * step, step, step)
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ct.fillStyle = '#' + fixColor;
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ct.fillRect((8 - xp2) * step, i * step, step, step)
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}
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return cv.toDataURL()
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}
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}
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return new Avatar()
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})
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