zhaocha_game/assets/script/framework/util.ts

import { _decorator, Component, Node, v2, Vec2 } from "cc";
const { ccclass, property } = _decorator;

@ccclass("Util")
export class Util {
    /**
     * !#zh 拷贝object。
     */
    /**
     * 深度拷贝
     * @param {any} sObj 拷贝的对象
     * @returns 
     */
    public static clone (sObj: any) {
        if (sObj === null || typeof sObj !== "object") {
            return sObj;
        }

        let s: {[key: string]: any} = {};
        if (sObj.constructor === Array) {
            s = [];
        }

        for (let i in sObj) {
            if (sObj.hasOwnProperty(i)) {
                s[i] = this.clone(sObj[i]);
            }
        }

        return s;
    }

    /**
     * 将object转化为数组
     * @param { any} srcObj  
     * @returns 
     */
    public static objectToArray (srcObj: {[key: string]: any}) {

        let resultArr: any[] = [];

        // to array
        for (let key in srcObj) {
            if (!srcObj.hasOwnProperty(key)) {
                continue;
            }

            resultArr.push(srcObj[key]);
        }

        return resultArr;
    }

    /**
     * !#zh 将数组转化为object。
     */
    /**
     * 将数组转化为object。
     * @param { any} srcObj 
     * @param { string} objectKey 
     * @returns 
     */
    public static arrayToObject (srcObj: any, objectKey: string) {

        let resultObj: {[key: string]: any}= {};

        // to object
        for (var key in srcObj) {
            if (!srcObj.hasOwnProperty(key) || !srcObj[key][objectKey]) {
                continue;
            }

            resultObj[srcObj[key][objectKey]] = srcObj[key];
        }

        return resultObj;
    }

    /**
     * 根据权重,计算随机内容
     * @param {arrany} weightArr 
     * @param {number} totalWeight 权重
     * @returns 
     */
    public static getWeightRandIndex (weightArr: [], totalWeight: number) {
        let randWeight: number = Math.floor(Math.random() * totalWeight);
        let sum: number = 0;
        for (var weightIndex: number = 0; weightIndex < weightArr.length; weightIndex++) {
            sum += weightArr[weightIndex];
            if (randWeight < sum) {
                break;
            }
        }

        return weightIndex;
    }

    /**
     * 从n个数中获取m个随机数
     * @param {Number} n   总数
     * @param {Number} m    获取数
     * @returns {Array} array   获取数列
     */
    public static getRandomNFromM (n: number, m: number) {
        let array: any[] = [];
        let intRd: number= 0;
        let count: number= 0;

        while (count < m) {
            if (count >= n + 1) {
                break;
            }

            intRd = this.getRandomInt(0, n);
            var flag = 0;
            for (var i = 0; i < count; i++) {
                if (array[i] === intRd) {
                    flag = 1;
                    break;
                }
            }

            if (flag === 0) {
                array[count] = intRd;
                count++;
            }
        }

        return array;
    }

    /**
     * 获取随机整数
     * @param {Number} min 最小值
     * @param {Number} max 最大值
     * @returns 
     */
    public static getRandomInt (min: number, max: number) {
        let r: number= Math.random();
        let rr: number= r * (max - min + 1) + min;
        return Math.floor(rr);
    }

    /**
     * 获取随机数
     * @param {Number} min 最小值
     * @param {Number} max 最大值
     * @returns 
     */
    public static getRandom (min: number, max: number) {
        return Math.random() * (max - min) + min;
    }
    
    /**
     * 获取字符串长度
     * @param {string} render 
     * @returns 
     */
    public static getStringLength (render: string) {
        let strArr: string = render;
        let len: number = 0;
        for (let i: number = 0, n = strArr.length; i < n; i++) {
            let val: number = strArr.charCodeAt(i);
            if (val <= 255) {
                len = len + 1;
            } else {
                len = len + 2;
            }
        }

        return Math.ceil(len / 2);
    }

    /**
     * 判断传入的参数是否为空的Object。数组或undefined会返回false
     * @param obj
     */
    public static isEmptyObject (obj: any) {
        let result: boolean = true;
        if (obj && obj.constructor === Object) {
            for (var key in obj) {
                if (obj.hasOwnProperty(key)) {
                    result = false;
                    break;
                }
            }
        } else {
            result = false;
        }

        return result;
    }

    /**
     * 判断是否是新的一天
     * @param {Object|Number} dateValue 时间对象 todo MessageCenter 与 pve 相关的时间存储建议改为 Date 类型
     * @returns {boolean}
     */
    public static isNewDay (dateValue: any) {
        // todo：是否需要判断时区？
        var oldDate: any = new Date(dateValue);
        var curDate: any = new Date();

        //@ts-ignore
        var oldYear = oldDate.getYear();
        var oldMonth = oldDate.getMonth();
        var oldDay = oldDate.getDate();
        //@ts-ignore
        var curYear = curDate.getYear();
        var curMonth = curDate.getMonth();
        var curDay = curDate.getDate();

        if (curYear > oldYear) {
            return true;
        } else {
            if (curMonth > oldMonth) {
                return true;
            } else {
                if (curDay > oldDay) {
                    return true;
                }
            }
        }

        return false;
    }

    /**
     * 获取对象属性数量
     * @param {object}o 对象
     * @returns 
     */
    public static getPropertyCount(o: Object) {
        var n, count = 0;
        for (n in o) {
            if (o.hasOwnProperty(n)) {
                count++;
            }
        }
        return count;
    }

    /**
     * 返回一个差异化数组（将array中diff里的值去掉）
     * @param array
     * @param diff
     */
    public static difference (array: [], diff: any) {
        let result: any[] = [];
        if (array.constructor !== Array || diff.constructor !== Array) {
            return result;
        }

        let length = array.length;
        for (let i: number= 0; i < length; i++) {
            if (diff.indexOf(array[i]) === -1) {
                result.push(array[i]);
            }
        }

        return result;
    }


    public static _stringToArray (string: string) {
        // 用于判断emoji的正则们
        var rsAstralRange = '\\ud800-\\udfff';
        var rsZWJ = '\\u200d';
        var rsVarRange = '\\ufe0e\\ufe0f';
        var rsComboMarksRange = '\\u0300-\\u036f';
        var reComboHalfMarksRange = '\\ufe20-\\ufe2f';
        var rsComboSymbolsRange = '\\u20d0-\\u20ff';
        var rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange;
        var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']');

        var rsFitz = '\\ud83c[\\udffb-\\udfff]';
        var rsOptVar = '[' + rsVarRange + ']?';
        var rsCombo = '[' + rsComboRange + ']';
        var rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')';
        var reOptMod = rsModifier + '?';
        var rsAstral = '[' + rsAstralRange + ']';
        var rsNonAstral = '[^' + rsAstralRange + ']';
        var rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}';
        var rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]';
        var rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*';
        var rsSeq = rsOptVar + reOptMod + rsOptJoin;
        var rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';
        var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');

        var hasUnicode = function (val: any) {
            return reHasUnicode.test(val);
        };

        var unicodeToArray = function (val: any) {
            return val.match(reUnicode) || [];
        };

        var asciiToArray = function (val: any) {
            return val.split('');
        };

        return hasUnicode(string) ? unicodeToArray(string) : asciiToArray(string);
    }

    // 模拟传msg的uuid
    public static simulationUUID () {
        function s4() {
            return Math.floor((1 + Math.random()) * 0x10000)
                .toString(16)
                .substring(1);
        }

        return s4() + s4() + '-' + s4() + '-' + s4() + '-' +
            s4() + '-' + s4() + s4() + s4();
    }

    public static trim (str: string) {
        return str.replace(/(^\s*)|(\s*$)/g, "");
    }

    /**
     * 判断当前时间是否在有效时间内
     * @param {String|Number} start 起始时间。带有时区信息
     * @param {String|Number} end 结束时间。带有时区信息
     */
    public static isNowValid (start: any, end: any) {
        var startTime = new Date(start);
        var endTime = new Date(end);
        var result = false;

        if (startTime.getDate() + '' !== 'NaN' && endTime.getDate() + '' !== 'NaN') {
            var curDate = new Date();
            result = curDate < endTime && curDate > startTime;
        }

        return result;
    }

    /**
     * 返回相隔天数
     * @param start 
     * @param end 
     * @returns 
     */
    public static getDeltaDays (start: any, end: any) {
        start = new Date(start);
        end = new Date(end);

        let startYear: number= start.getFullYear();
        let startMonth: number= start.getMonth() + 1;
        let startDate: number= start.getDate();
        let endYear: number= end.getFullYear();
        let endMonth: number= end.getMonth() + 1;
        let endDate: number= end.getDate();

        start = new Date(startYear + '/' + startMonth + '/' + startDate + ' GMT+0800').getTime();
        end = new Date(endYear + '/' + endMonth + '/' + endDate + ' GMT+0800').getTime();

        let deltaTime = end - start;
        return Math.floor(deltaTime / (24 * 60 * 60 * 1000));
    }

    /**
     * 获取数组最小值
     * @param array 数组
     * @returns 
     */
    public static getMin (array: number[]) {
        let result: number = null!;
        if (array.constructor === Array) {
            let length = array.length;
            for (let i = 0; i < length; i++) {
                if (i === 0) {
                    result = Number(array[0]);
                } else {
                    result = result > Number(array[i]) ? Number(array[i]) : result;
                }
            }
        }

        return result;
    }

    /**
     * 格式化两位小数点
     * @param time 
     * @returns 
     */
    public static formatTwoDigits (time: number) {
        //@ts-ignore
        return (Array(2).join(0)+time).slice(-2);
    }

    /**
     * 根据格式返回时间
     * @param date  时间
     * @param fmt 格式
     * @returns 
     */
    public static formatDate (date: Date, fmt: string) {
        let o = {
            "M+": date.getMonth() + 1, //月份
            "d+": date.getDate(), //日
            "h+": date.getHours(), //小时
            "m+": date.getMinutes(), //分
            "s+": date.getSeconds(), //秒
            "q+": Math.floor((date.getMonth() + 3) / 3), //季度
            "S": date.getMilliseconds() //毫秒
        };
        if (/(y+)/.test(fmt)) fmt = fmt.replace(RegExp.$1, (date.getFullYear() + "").substr(4 - RegExp.$1.length));
        for (let k in o)
            //@ts-ignore
            if (new RegExp("(" + k + ")").test(fmt)) fmt = fmt.replace(RegExp.$1, (RegExp.$1.length === 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
        return fmt;
    }

    /**
     * 获取格式化后的日期（不含小时分秒）
     */
    public static getDay () {
        let date: Date = new Date();

        return date.getFullYear()+'-'+(date.getMonth()+1)+'-'+date.getDate();
    }

    /**
     * 格式化名字，XXX...
     * @param {string} name 需要格式化的字符串 
     * @param {number}limit 
     * @returns {string} 返回格式化后的字符串XXX...
     */
    public static formatName (name: string, limit: number) {
        limit = limit || 6;
        var nameArray = this._stringToArray(name);
        var str = '';
        var length = nameArray.length;
        if (length > limit) {
            for (var i = 0; i < limit; i++) {
                str += nameArray[i];
            }

            str += '...';
        } else {
            str = name;
        }

        return str;
    }

    /**
     * 格式化钱数，超过10000 转换位 10K   10000K 转换为 10M
     * @param {number}money 需要被格式化的数值
     * @returns {string}返回 被格式化的数值
     */
    public static formatMoney (money: number) {
        let arrUnit: string[] = ['', 'K', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y', 'B', 'N', 'D'];

        let strValue: string = '';
        for (let idx: number = 0; idx < arrUnit.length; idx++) {
            if (money >= 10000) {
                money /= 1000;
            } else {
                strValue = Math.floor(money) + arrUnit[idx];
                break;
            }
        }

        if (strValue === '') {
            strValue = Math.floor(money) + 'U'; //超过最大值就加个U
        }

        return strValue;
    }

    /**
     * 格式化数值
     * @param {number}value 需要被格式化的数值
     * @returns {string}返回 被格式化的数值
     */
    public static formatValue (value: number) {
        let arrUnit: string[] = [];
        let strValue: string= '';
        for(let i=0;i<26;i++){
            arrUnit.push(String.fromCharCode(97+i));
        }

        for (let idx: number= 0; idx < arrUnit.length; idx++) {
            if (value >= 10000) {
                value /= 1000;
            } else {
                strValue = Math.floor(value) + arrUnit[idx]; 
                break;      
            }
        }

        return strValue;
    }

    /**
     * 根据剩余秒数格式化剩余时间 返回 HH:MM:SS
     * @param {Number} leftSec 
     */
    public static formatTimeForSecond (leftSec: number, withoutSeconds: boolean = false) {
        let timeStr: string= '';
        let sec: number= leftSec % 60;
    
        let leftMin: number= Math.floor(leftSec / 60);
        leftMin = leftMin < 0 ? 0 : leftMin;
    
        let hour: number= Math.floor(leftMin / 60);
        let min: number= leftMin % 60;
    
        if (hour > 0) {
            timeStr += hour > 9 ? hour.toString() : '0' + hour;
            timeStr += ':';
        } else {
            timeStr += '00:';
        }
        
        timeStr += min > 9 ? min.toString() : '0' + min;

        if (!withoutSeconds) {
            timeStr += ':';
            timeStr += sec > 9 ? sec.toString() : '0' + sec;
        }
       
        return timeStr;
    }

    /**
     *  根据剩余毫秒数格式化剩余时间 返回 HH:MM:SS
     *
     * @param {Number} ms
     */
    public static formatTimeForMillisecond(ms: number): Object {
        let second: number= Math.floor(ms / 1000 % 60);
        let minute: number= Math.floor(ms / 1000 / 60 % 60);
        let hour: number= Math.floor(ms / 1000 / 60 / 60);
        return {'hour': hour, 'minute': minute, 'second': second };
    }

    /**
     * 将数组内容进行随机排列
     * @param {Array}arr 需要被随机的数组 
     * @returns 
     */
    public static rand(arr: []): [] {
        let arrClone = this.clone(arr);
        // 首先从最大的数开始遍历，之后递减
        for (let i: number = arrClone.length - 1; i >= 0; i--) {
            // 随机索引值randomIndex是从0-arrClone.length中随机抽取的
            const randomIndex: number = Math.floor(Math.random() * (i + 1));
            // 下面三句相当于把从数组中随机抽取到的值与当前遍历的值互换位置
            const itemIndex: number = arrClone[randomIndex];
            arrClone[randomIndex] = arrClone[i];
            arrClone[i] = itemIndex;
        }
        // 每一次的遍历都相当于把从数组中随机抽取（不重复）的一个元素放到数组的最后面（索引顺序为：len-1,len-2,len-3......0）
        return arrClone;
    }

    /**
     * 获得开始和结束两者之间相隔分钟数
     *
     * @static
     * @param {number} start
     * @param {number} end
     * @memberof Util
     */
    public static getOffsetMimutes (start: number, end: number) {
        let offSetTime : number = end - start;
        let minute: number = Math.floor((offSetTime % (1000 * 60 * 60)) / (1000 * 60));
        return minute;
    }

    /**
     * 返回指定小数位的数值
     * @param {number} num 
     * @param {number} idx 
     */
    public static formatNumToFixed (num: number, idx: number = 0) {
        return Number(num.toFixed(idx));
    }

    /**
     * 用于数值到达另外一个目标数值之间进行平滑过渡运动效果
     * @param {number} targetValue 目标数值 
     * @param {number} curValue 当前数值
     * @param {number} ratio    过渡比率
     * @returns 
     */
    public static lerp (targetValue: number, curValue: number, ratio: number = 0.25) {
        let v: number = curValue;
        if (targetValue > curValue) {
            v = curValue + (targetValue - curValue) * ratio;
        } else if (targetValue < curValue) {
            v = curValue - (curValue - targetValue) * ratio;
        }
        
        return v;
    }

    /**
     * 数据解密
     * @param {String} str 
     */
    public static decrypt (b64Data: string) {
        let n: number= 6;
        if (b64Data.length % 2 === 0) {
            n = 7;
        }

        let decodeData = '';
        for (var idx = 0; idx < b64Data.length - n; idx += 2) {
            decodeData += b64Data[idx + 1];
            decodeData += b64Data[idx];
        }

        decodeData += b64Data.slice(b64Data.length - n + 1);

        decodeData = this._base64Decode(decodeData);

        return decodeData;
    }

        /**
     * 数据加密
     * @param {String} str 
     */
    public static encrypt (str: string) {
        let b64Data = this._base64encode(str);

        let n: number = 6;
        if (b64Data.length % 2 === 0) {
            n = 7;
        }

        let encodeData: string= '';

        for (let idx = 0; idx < (b64Data.length - n + 1) / 2; idx++) {
            encodeData += b64Data[2*idx+1];
            encodeData += b64Data[2*idx];
        }

        encodeData += b64Data.slice(b64Data.length - n + 1);

        return encodeData;
    }

    //public method for encoding
    /**
     * base64加密
     * @param {string}input 
     * @returns 
     */
    private static _base64encode (input: string) {
        let keyStr :string= "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
        let output :string= "", chr1: number, chr2: number, chr3: number, enc1: number, enc2: number, enc3: number, enc4: number, i: number= 0;
        input = this._utf8Encode(input);
        while (i < input.length) {
            chr1 = input.charCodeAt(i++);
            chr2 = input.charCodeAt(i++);
            chr3 = input.charCodeAt(i++);
            enc1 = chr1 >> 2;
            enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
            enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
            enc4 = chr3 & 63;
            if (isNaN(chr2)) {
                enc3 = enc4 = 64;
            } else if (isNaN(chr3)) {
                enc4 = 64;
            }
            output = output +
                keyStr.charAt(enc1) + keyStr.charAt(enc2) +
                keyStr.charAt(enc3) + keyStr.charAt(enc4);
        }
        return output;
    }

    /**
     * utf-8 加密
     * @param string 
     * @returns 
     */
    private static _utf8Encode (string: string) {
        string = string.replace(/\r\n/g,"\n");
        let utftext: string= "";
        for (let n: number = 0; n < string.length; n++) {
            let c: number = string.charCodeAt(n);
            if (c < 128) {
                utftext += String.fromCharCode(c);
            } else if((c > 127) && (c < 2048)) {
                utftext += String.fromCharCode((c >> 6) | 192);
                utftext += String.fromCharCode((c & 63) | 128);
            } else {
                utftext += String.fromCharCode((c >> 12) | 224);
                utftext += String.fromCharCode(((c >> 6) & 63) | 128);
                utftext += String.fromCharCode((c & 63) | 128);
            }

        }
        return utftext;
    }

    /**
     * utf-8解密
     * @param utftext 
     * @returns 
     */
    private static _utf8Decode (utftext: string) {
        let string = "";
        let i: number= 0;
        let c: number= 0;
        let c1: number= 0;
        let c2: number= 0;
        let c3: number= 0;
        while ( i < utftext.length ) {
            c = utftext.charCodeAt(i);
            if (c < 128) {
                string += String.fromCharCode(c);
                i++;
            } else if((c > 191) && (c < 224)) {
                c2 = utftext.charCodeAt(i+1);
                string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
                i += 2;
            } else {
                c2 = utftext.charCodeAt(i+1);
                c3 = utftext.charCodeAt(i+2);
                string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
                i += 3;
            }
        }
        return string;
    }

    /**
     * base64解密
     * @param {string}input 解密字符串
     * @returns 
     */
    private static _base64Decode (input: string) {
        let keyStr: string = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
        let output: string = "";
        let chr1: number;
        let chr2: number;
        let chr3: number;
        let enc1: number;
        let enc2: number;
        let enc3: number;
        let enc4: number;
        let i: number= 0;
        input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
        while (i < input.length) {
            enc1 = keyStr.indexOf(input.charAt(i++));
            enc2 = keyStr.indexOf(input.charAt(i++));
            enc3 = keyStr.indexOf(input.charAt(i++));
            enc4 = keyStr.indexOf(input.charAt(i++));
            chr1 = (enc1 << 2) | (enc2 >> 4);
            chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
            chr3 = ((enc3 & 3) << 6) | enc4;
            output = output + String.fromCharCode(chr1);
            if (enc3 != 64) {
                output = output + String.fromCharCode(chr2);
            }
            if (enc4 != 64) {
                output = output + String.fromCharCode(chr3);
            }
        }
        output = this._utf8Decode(output);
        return output;
    }

    /**
     * 洗牌函数
     *
     * @static
     * @param {*} arr
     * @returns
     * @memberof util
     */
    public static shuffle (arr: any) {
        if (Array.isArray(arr)) {
            let newArr: any = arr.concat();
            newArr.sort(()=>{ return 0.5 - Math.random()});
            return newArr;
        }
    }

    /**
     * 两个数值数组取相同的值，返回一个新数组
     *
     * @static
     * @param {number[]} arr1
     * @param {number[]} arr2
     * @returns
     * @memberof util
     */
    public static filterDifferentValue (arr1: number[], arr2: number[]) {
        let arr: number[] = [];
        arr = arr1.filter((item: number)=>{
            return arr2.indexOf(item) !== -1;
        })

        return arr;
    }

    /**
     * 获取性能等级
     * -Android
     * 设备性能等级，取值为：
     * -2 或 0（该设备无法运行小游戏）
     * -1（性能未知）
     * >=1（设备性能值，该值越高，设备性能越好，目前最高不到50)
     * -IOS
     * 微信不支持IO性能等级
     * iPhone 5s 及以下
     * 设定为超低端机 benchmarkLevel = 5
     * iPhone 6 ～ iPhone SE
     * 设定为超低端机 benchmarkLevel = 15
     * iPhone 7 ~ iPhone X
     * 设定为中端机 benchmarkLevel = 25
     * iPhone XS 及以上
     * 设定为高端机 benchmarkLevel = 40
     * -H5或其他
     * -1（性能未知）
     */
        /**
     * 获取当前机型性能是否为低端机
     */
    public static checkIsLowPhone (): Boolean {
        // @ts-ignore
        if (window.wx) {
            // 微信性能数值参考:https://developers.weixin.qq.com/minigame/dev/guide/performance/perf-benchmarkLevel.html

            let nowBenchmarkLevel: number = -1; // nowBenchmarkLevel = -1性能未知
            // @ts-ignore
            const sys = window.wx.getSystemInfoSync();
            const isIOS = sys.system.indexOf('iOS') >= 0;
            if (isIOS) {
                // 微信不支持IO性能等级
                const model = sys.model;
                console.log("###model", model);
                // iPhone 5s 及以下 设定为超低端机
                const ultraLowPhoneType = ['iPhone1,1', 'iPhone1,2', 'iPhone2,1', 'iPhone3,1', 'iPhone3,3', 'iPhone4,1', 'iPhone5,1', 'iPhone5,2', 'iPhone5,3', 'iPhone5,4', 'iPhone6,1', 'iPhone6,2'];
                // iPhone 6 ~ iPhone SE 设定为超低端机
                const lowPhoneType = ['iPhone6,2', 'iPhone7,1', 'iPhone7,2', 'iPhone8,1', 'iPhone8,2', 'iPhone8,4'];
                // iPhone 7 ~ iPhone X 设定为中端机
                const middlePhoneType = ['iPhone9,1', 'iPhone9,2', 'iPhone9,3', 'iPhone9,4', 'iPhone10,1', 'iPhone10,2', 'iPhone10,3', 'iPhone10,4', 'iPhone10,5', 'iPhone10,6', "iPhone XS"];
                // iPhone XS 及以上 设定为高端机
                const highPhoneType = ['iPhone11,2', 'iPhone11,4', 'iPhone11,6', 'iPhone11,8', 'iPhone12,1', 'iPhone12,3', 'iPhone12,5', 'iPhone12,8', "iPhone 13", "iPhone 14"];
                for (let i = 0; i < ultraLowPhoneType.length; i++) {
                    if (model.indexOf(ultraLowPhoneType[i]) >= 0) { nowBenchmarkLevel = 5 }
                }
                for (let i = 0; i < lowPhoneType.length; i++) {
                    if (model.indexOf(lowPhoneType[i]) >= 0) { nowBenchmarkLevel = 10 }
                }
                for (let i = 0; i < middlePhoneType.length; i++) {
                    if (model.indexOf(middlePhoneType[i]) >= 0) { nowBenchmarkLevel = 20 }
                }
                for (let i = 0; i < highPhoneType.length; i++) {
                    if (model.indexOf(highPhoneType[i]) >= 0) { nowBenchmarkLevel = 30 }
                }
            } else {
                nowBenchmarkLevel = sys.benchmarkLevel;
            }

            if (nowBenchmarkLevel < 20) { // 22的具体参数可参考微信官方
                return true;
            } else {
                return false;
            }
        } else {
            return false;
        }
    }

    /**
     * 获取数组中随机一个元素
     * @param arr 
     * @returns 
     */
    public static getRandomItemFromArray (arr: any[]) {
        return arr[Math.floor(Math.random() * arr.length)];
    }

    /**
     * 解析数据表带有#或者,连接的数据
     *
     * @static
     * @param {string} str
     * @param {string} [symbol="#"]
     * @return {*} 
     * @memberof util
     */
    public static parseStringData (str: string, symbol: string = "#"): any[] {
        let arr: any[] = str.split(symbol);
        return arr.map((item: any)=>{
            return Number(item);
        })
    }   

    /**
     * 返回精确到若干位数的数值
     *
     * @static
     * @param {number} v
     * @param {number} digit
     * @memberof util
     */
    public static toFixed (v: number, digit: number = 2) {
        return Number(v.toFixed(digit));
    }

    /**
     * 获取两个节点的xz坐标的弧度
     *
     * @static
     * @param {Node} ndA
     * @param {Node} ndB
     * @param {boolean} [isLocal=false] 是否为本地坐标，反之为世界坐标
     * @return {*} 
     * @memberof util
     */
    public static getTwoNodeXZRadius(ndA: Node, ndB: Node, isLocal: boolean = false) {
        const aX = isLocal ? ndA.position.x : ndA.worldPosition.x;
        const aZ = isLocal ? ndA.position.z : ndA.worldPosition.z;
        const bX = isLocal ? ndB.position.x : ndB.worldPosition.x;
        const bZ = isLocal ? ndB.position.z : ndB.worldPosition.z;
        let radius = this.getTwoPosXZRadius(aX, bX, aZ, bZ);
        return radius;
    }

    /**
     * 获取两个坐标zx分量的弧度
     *
     * @static
     * @param {number} aX
     * @param {number} aZ
     * @param {number} bX
     * @param {number} bZ
     * @returns
     * @memberof util
     */
    public static getTwoPosXZRadius(aX: number, aZ: number, bX: number, bZ: number) {
        return Math.atan2(aX - bX, aZ - bZ);
    }

    /**
     * 获取两个节点坐标在xz轴的距离
     *
     * @static
     * @param {Node} ndA
     * @param {Node} ndB
     * @param {boolean} [isLocal=false] 是否为本地坐标，反之为世界坐标
     * @return {*} 
     * @memberof util
     */
    public static getTwoNodeXZLength(ndA: Node, ndB: Node, isLocal: boolean = false) {
        const aX = isLocal ? ndA.position.x : ndA.worldPosition.x;
        const aZ = isLocal ? ndA.position.z : ndA.worldPosition.z;
        const bX = isLocal ? ndB.position.x : ndB.worldPosition.x;
        const bZ = isLocal ? ndB.position.z : ndB.worldPosition.z;
        return this.getTwoPosXZLength(aX, aZ, bX, bZ);
    }

    /**
     * 获取两个坐标在xz轴的距离
     * 
     * @static
     * @param {number} aX
     * @param {number} aZ
     * @param {number} bX
     * @param {number} bZ
     * @return {*} 
     * @memberof util
     */
    public static getTwoPosXZLength(aX: number, aZ: number, bX: number, bZ: number) {
        const x = aX - bX;
        const z = aZ - bZ;
        return Math.sqrt(x * x + z * z);
    }

    /***
     * 返回随机方向
     */
    public static getRandomDirector () {
        let v = Math.random(); 
        return v > 0.5 ? 1 : -1
    }


    public static lookAtObj(target:Vec2,self:Vec2):number{
        //计算出朝向
        var dx = target.x - self.x;
        var dy = target.y - self.y;
        var dir = new  Vec2(dx,dy);

        let radian = Math.atan2(dir.y,dir.x);

        //根据朝向计算出夹角弧度
        var angle = radian / Math.PI * 180;
 
        //赋值给节点
        return angle + 90

        //cocos里angle是以逆时针方向转动为正值。 所以加90

    }

    public static coinNumberToK(coin_number:number):string{
        if(coin_number<10000){
            return coin_number.toString();
        }
        let n = coin_number/1000;
        let n_str = n.toFixed(1)
        return `${n_str}k`
    }

}