22 lines
697 B
JavaScript
22 lines
697 B
JavaScript
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module.exports = {
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uuid() {
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//6位
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let _uuid = "";
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for (let i = 0; i < 6; i++) {
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if (Math.random() > 0.5) {
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//大于0.5就是数字，小于则是字母
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_uuid = _uuid + (Math.round((Math.random() * 100)) % 10 );
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} else {
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_uuid = _uuid + String.fromCharCode(97 + (Math.round(Math.random() * 100)) % 26);
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}
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}
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return _uuid;
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},
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distance(pos1,pos2){
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if(pos1.roomName==pos2.roomName){
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return Math.sqrt(Math.pow((pos1.x-pos2.x),2)+Math.pow((pos1.y-pos2.y),2));
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}
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return -1;//如果不在一个房间内，就返回负数。
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}
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}
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