24 lines
592 B
JavaScript
24 lines
592 B
JavaScript
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 += 1) {
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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 += Math.round(Math.random() * 100) % 10;
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} else {
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uuid += String.fromCharCode(
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97 + (Math.round(Math.random() * 100) % 26)
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);
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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((pos1.x - pos2.x, 2) ** 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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