mirror of
https://github.com/unanmed/HumanBreak.git
synced 2025-10-31 20:32:58 +08:00
1520 lines
45 KiB
JavaScript
1520 lines
45 KiB
JavaScript
///<reference path="../../src/types/declaration/core.d.ts" />
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/*
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utils.js 工具类
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*/
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'use strict';
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function utils() {
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this._init();
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this.scan = {
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up: { x: 0, y: -1 },
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left: { x: -1, y: 0 },
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down: { x: 0, y: 1 },
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right: { x: 1, y: 0 }
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};
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this.scan2 = {
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up: { x: 0, y: -1 },
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left: { x: -1, y: 0 },
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down: { x: 0, y: 1 },
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right: { x: 1, y: 0 },
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leftup: { x: -1, y: -1 },
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leftdown: { x: -1, y: 1 },
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rightup: { x: 1, y: -1 },
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rightdown: { x: 1, y: 1 }
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};
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}
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utils.prototype._init = function () {
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//
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};
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////// 将文字中的${和}（表达式）进行替换 //////
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utils.prototype.replaceText = function (text, prefix) {
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if (typeof text !== 'string') return text;
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const length = text.length;
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let pointer = -1;
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let res = '';
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let expression = '';
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let blockDepth = 0;
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let inExpression = false;
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while (++pointer < length) {
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const char = text[pointer];
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if (inExpression) {
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if (char === '}') {
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blockDepth--;
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} else if (char === '{') {
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blockDepth++;
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}
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if (blockDepth === 0) {
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inExpression = false;
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res += String(core.utils.calValue(expression, prefix));
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expression = '';
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} else {
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expression += char;
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}
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continue;
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}
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if (char === '$' && text[pointer + 1] === '{') {
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pointer++;
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inExpression = true;
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blockDepth++;
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continue;
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}
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res += char;
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}
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return res;
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};
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utils.prototype.replaceValue = function (value) {
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if (typeof value !== 'string') return value;
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if (
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value.includes(':') ||
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value.includes('flag：') ||
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value.includes('global：')
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) {
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if (value.includes('status:'))
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value = value.replace(
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/status:([a-zA-Z0-9_]+)/g,
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"core.getStatus('$1')"
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);
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if (value.includes('buff:'))
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value = value.replace(
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/buff:([a-zA-Z0-9_]+)/g,
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"core.getBuff('$1')"
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);
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if (value.includes('item:'))
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value = value.replace(
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/item:([a-zA-Z0-9_]+)/g,
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"core.itemCount('$1')"
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);
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if (value.includes('flag:') || value.includes('flag：'))
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value = value.replace(
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/flag[:：]([a-zA-Z0-9_\u4E00-\u9FCC\u3040-\u30FF\u2160-\u216B\u0391-\u03C9]+)/g,
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"core.getFlag('$1', 0)"
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);
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if (value.includes('global:') || value.includes('global：'))
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value = value.replace(
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/global[:：]([a-zA-Z0-9_\u4E00-\u9FCC\u3040-\u30FF\u2160-\u216B\u0391-\u03C9]+)/g,
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"core.getGlobal('$1', 0)"
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);
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if (value.includes('enemy:'))
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value = value.replace(
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/enemy:([a-zA-Z0-9_]+)[\.:]([a-zA-Z0-9_]+)/g,
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"core.material.enemys['$1'].$2"
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);
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if (value.includes('blockId:'))
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value = value.replace(
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/blockId:(\d+),(\d+)/g,
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'core.getBlockId($1, $2)'
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);
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if (value.includes('blockNumber:'))
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value = value.replace(
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/blockNumber:(\d+),(\d+)/g,
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'core.getBlockNumber($1, $2)'
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);
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if (value.includes('blockCls:'))
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value = value.replace(
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/blockCls:(\d+),(\d+)/g,
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'core.getBlockCls($1, $2)'
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);
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if (value.includes('equip:'))
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value = value.replace(/equip:(\d)/g, 'core.getEquip($1)');
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if (value.includes('temp:'))
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value = value.replace(
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/temp:([a-zA-Z0-9_]+)/g,
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"core.getFlag('@temp@$1', 0)"
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);
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// if (value.indexOf('switch:') >= 0)
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// value = value.replace(
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// /switch:([a-zA-Z0-9_]+)/g,
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// "core.getFlag('" + (prefix || ':f@x@y') + "@$1', 0)"
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// );
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}
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return value;
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};
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////// 计算表达式的值 //////
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utils.prototype.calValue = function (value, prefix) {
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if (!core.isset(value)) return null;
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if (typeof value === 'string') {
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value = this.replaceValue(value);
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return eval(value);
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}
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if (value instanceof Function) {
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return value();
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}
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return value;
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};
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////// 向某个数组前插入另一个数组或元素 //////
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utils.prototype.unshift = function (a, b) {
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if (!(a instanceof Array) || b == null) return;
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if (b instanceof Array) {
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a.unshift(...b);
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} else a.unshift(b);
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return a;
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};
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////// 向某个数组后插入另一个数组或元素 //////
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utils.prototype.push = function (a, b) {
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if (!(a instanceof Array) || b == null) return;
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if (b instanceof Array) {
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a.push(...b);
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} else a.push(b);
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return a;
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};
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utils.prototype.decompress = function (value) {
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try {
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var output = lzw_decode(value);
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if (output) return JSON.parse(output);
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} catch (e) {}
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try {
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var output = LZString.decompress(value);
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if (output) return JSON.parse(output);
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} catch (e) {}
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try {
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return JSON.parse(value);
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} catch (e) {
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console.error(e);
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}
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return null;
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};
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////// 设置本地存储 //////
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utils.prototype.setLocalStorage = function (key, value) {
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try {
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if (value == null) {
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this.removeLocalStorage(key);
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return;
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}
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var str = JSON.stringify(value).replace(
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/[\u007F-\uFFFF]/g,
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function (chr) {
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return (
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'\\u' + ('0000' + chr.charCodeAt(0).toString(16)).substr(-4)
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);
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}
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);
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localStorage.setItem(core.firstData.name + '_' + key, str);
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if (key == 'autoSave') core.saves.ids[0] = true;
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else if (/^save\d+$/.test(key))
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core.saves.ids[parseInt(key.substring(4))] = true;
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return true;
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} catch (e) {
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console.error(e);
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return false;
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}
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};
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////// 获得本地存储 //////
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utils.prototype.getLocalStorage = function (key, defaultValue) {
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try {
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var value = JSON.parse(
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localStorage.getItem(core.firstData.name + '_' + key)
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);
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if (value == null) return defaultValue;
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return value;
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} catch (e) {
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return defaultValue;
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}
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};
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////// 移除本地存储 //////
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utils.prototype.removeLocalStorage = function (key) {
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localStorage.removeItem(core.firstData.name + '_' + key);
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if (key == 'autoSave') delete core.saves.ids[0];
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else if (/^save\d+$/.test(key))
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delete core.saves.ids[parseInt(key.substring(4))];
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};
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utils.prototype.setLocalForage = function (
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key,
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value,
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successCallback,
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errorCallback
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) {
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if (value == null) {
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this.removeLocalForage(key);
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return;
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}
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var name = core.firstData.name + '_' + key;
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var str = JSON.stringify(value).replace(/[\u007F-\uFFFF]/g, function (chr) {
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return '\\u' + ('0000' + chr.charCodeAt(0).toString(16)).substr(-4);
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});
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var callback = function (err) {
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if (err) {
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if (errorCallback) errorCallback(err);
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} else {
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if (key == 'autoSave') core.saves.ids[0] = true;
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else if (/^save\d+$/.test(key))
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core.saves.ids[parseInt(key.substring(4))] = true;
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if (successCallback) successCallback();
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}
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};
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this._setLocalForage_set(name, str, callback);
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};
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utils.prototype._setLocalForage_set = function (name, str, callback) {
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if (window.jsinterface && window.jsinterface.setLocalForage) {
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var id = setTimeout(null);
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core['__callback' + id] = callback;
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core.saves.cache[name] = str;
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window.jsinterface.setLocalForage(id, name, str);
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} else {
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var compressed =
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str.length > 100000 ? LZString.compress(str) : lzw_encode(str);
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core.saves.cache[name] = compressed;
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localforage.setItem(name, compressed, callback);
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}
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};
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utils.prototype.getLocalForage = function (
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key,
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defaultValue,
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successCallback,
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errorCallback
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) {
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var name = core.firstData.name + '_' + key;
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var callback = function (err, value) {
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if (err) {
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if (errorCallback) errorCallback(err);
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} else {
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core.saves.cache[name] = value;
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if (!successCallback) return;
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if (value != null) {
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var res = core.utils.decompress(value);
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successCallback(res == null ? defaultValue : res);
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return;
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}
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successCallback(defaultValue);
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}
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};
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if (core.saves.cache[name] != null) {
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return callback(null, core.saves.cache[name]);
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}
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this._getLocalForage_get(name, callback);
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};
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utils.prototype._getLocalForage_get = function (name, callback) {
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if (window.jsinterface && window.jsinterface.getLocalForage) {
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var id = setTimeout(null);
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core['__callback' + id] = callback;
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window.jsinterface.getLocalForage(id, name);
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} else {
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localforage.getItem(name, callback);
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}
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};
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utils.prototype.removeLocalForage = function (
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key,
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successCallback,
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errorCallback
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) {
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var name = core.firstData.name + '_' + key;
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var callback = function (err) {
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if (err) {
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if (errorCallback) errorCallback(err);
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} else {
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if (key == 'autoSave') delete core.saves.ids[0];
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else if (/^save\d+$/.test(key))
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delete core.saves.ids[parseInt(key.substring(4))];
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if (successCallback) successCallback();
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}
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};
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delete core.saves.cache[name];
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this._removeLocalForage_remove(name, callback);
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};
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utils.prototype._removeLocalForage_remove = function (name, callback) {
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if (window.jsinterface && window.jsinterface.removeLocalForage) {
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var id = setTimeout(null);
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core['__callback' + id] = callback;
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window.jsinterface.removeLocalForage(id, name);
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} else {
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localforage.removeItem(name, callback);
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}
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};
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utils.prototype.clearLocalForage = function (callback) {
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core.saves.cache = {};
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if (window.jsinterface && window.jsinterface.clearLocalForage) {
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var id = setTimeout(null);
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core['__callback' + id] = callback;
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window.jsinterface.clearLocalForage(id);
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} else {
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localforage.clear(callback);
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}
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};
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utils.prototype.iterateLocalForage = function (iter, callback) {
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if (window.jsinterface && window.jsinterface.iterateLocalForage) {
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var id = setTimeout(null);
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core['__iter' + id] = iter;
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core['__callback' + id] = callback;
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window.jsinterface.iterateLocalForage(id);
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} else {
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localforage.iterate(iter, callback);
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}
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};
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utils.prototype.keysLocalForage = function (callback) {
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if (window.jsinterface && window.jsinterface.keysLocalForage) {
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var id = setTimeout(null);
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core['__callback' + id] = callback;
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window.jsinterface.keysLocalForage(id);
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} else {
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localforage.keys(callback);
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}
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};
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utils.prototype.lengthLocalForage = function (callback) {
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if (window.jsinterface && window.jsinterface.lengthLocalForage) {
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var id = setTimeout(null);
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core['__callback' + id] = callback;
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window.jsinterface.lengthLocalForage(id);
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} else {
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localforage.length(callback);
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}
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};
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utils.prototype.setGlobal = function (key, value) {
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if (core.isReplaying()) return;
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core.setLocalStorage(key, value);
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};
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utils.prototype.getGlobal = function (key, defaultValue) {
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var value;
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if (core.isReplaying()) {
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// 不考虑key不一致的情况
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var action = core.status.replay.toReplay.shift();
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if (action.indexOf('input2:') == 0) {
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value = JSON.parse(core.decodeBase64(action.substring(7)));
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core.setFlag('__global__' + key, value);
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core.status.route.push(
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'input2:' + core.encodeBase64(JSON.stringify(value))
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);
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} else {
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// 录像兼容性：尝试从flag和localStorage获得
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// 注意这里不再二次记录 input2: 到录像
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core.status.replay.toReplay.unshift(action);
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value = core.getFlag(
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'__global__' + key,
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core.getLocalStorage(key, defaultValue)
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);
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}
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} else {
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value = core.getLocalStorage(key, defaultValue);
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core.setFlag('__global__' + key, value);
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core.status.route.push(
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'input2:' + core.encodeBase64(JSON.stringify(value))
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);
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}
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return value;
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};
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////// 深拷贝一个对象 //////
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utils.prototype.clone = function (data, filter, recursion) {
|
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if (!core.isset(data)) return null;
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// date
|
||
if (data instanceof Date) {
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||
var copy = new Date();
|
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copy.setTime(data.getTime());
|
||
return copy;
|
||
}
|
||
// array
|
||
if (data instanceof Array) {
|
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return data.map((v, i) => {
|
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if (!filter || filter(String(i), v)) {
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return this.clone(v, recursion ? filter : null, recursion);
|
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}
|
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});
|
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}
|
||
// 函数
|
||
if (data instanceof Function) {
|
||
return data;
|
||
}
|
||
// object
|
||
if (data instanceof Object) {
|
||
var copy = {};
|
||
for (const [key, value] of Object.entries(data)) {
|
||
if (!filter || filter(key, value)) {
|
||
copy[key] = this.clone(
|
||
value,
|
||
recursion ? filter : null,
|
||
recursion
|
||
);
|
||
}
|
||
}
|
||
return copy;
|
||
}
|
||
return data;
|
||
};
|
||
|
||
////// 深拷贝1D/2D数组优化 //////
|
||
utils.prototype.cloneArray = function (data) {
|
||
if (!(data instanceof Array)) return this.clone(data);
|
||
if (data[0] instanceof Array) {
|
||
return data.map(function (one) {
|
||
return one.slice();
|
||
});
|
||
} else {
|
||
return data.slice();
|
||
}
|
||
};
|
||
|
||
////// 裁剪图片 //////
|
||
utils.prototype.splitImage = function (image, width, height) {
|
||
if (typeof image == 'string') {
|
||
image = core.getMappedName(image);
|
||
image = core.material.images.images[image];
|
||
}
|
||
if (!image) return [];
|
||
width = width || 32;
|
||
height = height || width;
|
||
var canvas = document.createElement('canvas');
|
||
var ctx = canvas.getContext('2d');
|
||
var ans = [];
|
||
for (var j = 0; j < image.height; j += height) {
|
||
for (var i = 0; i < image.width; i += width) {
|
||
var w = Math.min(width, image.width - i),
|
||
h = Math.min(height, image.height - j);
|
||
canvas.width = w;
|
||
canvas.height = h;
|
||
core.drawImage(ctx, image, i, j, w, h, 0, 0, w, h);
|
||
var img = new Image();
|
||
img.src = canvas.toDataURL('image/png');
|
||
ans.push(img);
|
||
}
|
||
}
|
||
return ans;
|
||
};
|
||
|
||
////// 格式化时间为字符串 //////
|
||
utils.prototype.formatDate = function (date) {
|
||
if (!date) date = new Date();
|
||
return (
|
||
'' +
|
||
date.getFullYear() +
|
||
'-' +
|
||
core.setTwoDigits(date.getMonth() + 1) +
|
||
'-' +
|
||
core.setTwoDigits(date.getDate()) +
|
||
' ' +
|
||
core.setTwoDigits(date.getHours()) +
|
||
':' +
|
||
core.setTwoDigits(date.getMinutes()) +
|
||
':' +
|
||
core.setTwoDigits(date.getSeconds())
|
||
);
|
||
};
|
||
|
||
////// 格式化时间为最简字符串 //////
|
||
utils.prototype.formatDate2 = function (date) {
|
||
if (!date) date = new Date();
|
||
return (
|
||
'' +
|
||
date.getFullYear() +
|
||
core.setTwoDigits(date.getMonth() + 1) +
|
||
core.setTwoDigits(date.getDate()) +
|
||
core.setTwoDigits(date.getHours()) +
|
||
core.setTwoDigits(date.getMinutes()) +
|
||
core.setTwoDigits(date.getSeconds())
|
||
);
|
||
};
|
||
|
||
utils.prototype.formatTime = function (time) {
|
||
return (
|
||
core.setTwoDigits(Math.floor(time / 3600000)) +
|
||
':' +
|
||
core.setTwoDigits(Math.floor(time / 60000) % 60) +
|
||
':' +
|
||
core.setTwoDigits(Math.floor(time / 1000) % 60)
|
||
);
|
||
};
|
||
|
||
////// 两位数显示 //////
|
||
utils.prototype.setTwoDigits = function (x) {
|
||
const num = Number(x);
|
||
return num < 10 && num >= 0 ? '0' + x : x;
|
||
};
|
||
|
||
utils.prototype.formatSize = function (size) {
|
||
if (size < 1024) return size + 'B';
|
||
else if (size < 1024 * 1024) return (size / 1024).toFixed(2) + 'KB';
|
||
else return (size / 1024 / 1024).toFixed(2) + 'MB';
|
||
};
|
||
|
||
utils.prototype.formatBigNumber = function (x, digits) {
|
||
if (typeof x === 'string') return x;
|
||
if (digits === true) digits = 4; // 兼容旧版onMap参数
|
||
digits ??= 6;
|
||
x = Math.trunc(parseFloat(x)); // 尝试识别为小数，然后向0取整
|
||
if (x == null || !Number.isFinite(x)) return '???'; // 无法识别的数或正负无穷大，显示'???'
|
||
var units = [
|
||
// 单位及其后缀字母，可自定义，如改成千进制下的K、M、G、T、P
|
||
{ val: 1e4, suffix: 'w' },
|
||
{ val: 1e8, suffix: 'e' },
|
||
{ val: 1e12, suffix: 'z' },
|
||
{ val: 1e16, suffix: 'j' },
|
||
{ val: 1e20, suffix: 'g' }
|
||
];
|
||
if (Math.abs(x) > 1e20 * Math.pow(10, digits - 2))
|
||
return x.toExponential(0); // 绝对值过大以致于失去精度的数，直接使用科学记数法，系数只保留整数
|
||
var sign = x < 0 ? '-' : '';
|
||
x = Math.abs(x);
|
||
|
||
if (x < Math.pow(10, digits)) return sign + x;
|
||
|
||
for (var i = 0; i < units.length; ++i) {
|
||
var each = units[i];
|
||
var u = (x / each.val)
|
||
.toFixed(digits)
|
||
.slice(0, sign === '-' ? digits : digits + 1);
|
||
if (u.indexOf('.') < 0) continue;
|
||
u = u.substring(
|
||
0,
|
||
u[u.length - 2] == '.' ? u.length - 2 : u.length - 1
|
||
);
|
||
return sign + u + each.suffix;
|
||
}
|
||
return sign + x.toExponential(0);
|
||
};
|
||
|
||
////// 变速移动 //////
|
||
utils.prototype.applyEasing = function (name) {
|
||
var list = {
|
||
easeIn: function (t) {
|
||
return Math.pow(t, 3);
|
||
},
|
||
easeOut: function (t) {
|
||
return 1 - Math.pow(1 - t, 3);
|
||
},
|
||
easeInOut: function (t) {
|
||
// easeInOut试了一下感觉二次方效果明显点
|
||
if (t < 0.5) return Math.pow(t, 2) * 2;
|
||
else return 1 - Math.pow(1 - t, 2) * 2;
|
||
},
|
||
linear: function (t) {
|
||
return t;
|
||
}
|
||
};
|
||
if (name == 'random') {
|
||
var keys = Object.keys(list);
|
||
name = keys[Math.floor(Math.random() * keys.length)];
|
||
}
|
||
return list[name] || list.linear;
|
||
};
|
||
|
||
////// 数组转RGB //////
|
||
utils.prototype.arrayToRGB = function (color) {
|
||
if (!(color instanceof Array)) return color;
|
||
var nowR = this.clamp(parseInt(color[0]), 0, 255),
|
||
nowG = this.clamp(parseInt(color[1]), 0, 255),
|
||
nowB = this.clamp(parseInt(color[2]), 0, 255);
|
||
return (
|
||
'#' + ((nowR << 16) + (nowG << 8) + nowB).toString(16).padStart(6, '0')
|
||
);
|
||
};
|
||
|
||
utils.prototype.arrayToRGBA = function (color) {
|
||
if (!(color instanceof Array)) return color;
|
||
if (color[3] == null) color[3] = 1;
|
||
var nowR = this.clamp(parseInt(color[0]), 0, 255),
|
||
nowG = this.clamp(parseInt(color[1]), 0, 255),
|
||
nowB = this.clamp(parseInt(color[2]), 0, 255),
|
||
nowA = this.clamp(parseFloat(color[3]), 0, 1);
|
||
return 'rgba(' + nowR + ',' + nowG + ',' + nowB + ',' + nowA + ')';
|
||
};
|
||
|
||
////// 加密路线 //////
|
||
utils.prototype.encodeRoute = function (route, compress = true) {
|
||
var ans = '',
|
||
lastMove = '',
|
||
cnt = 0;
|
||
|
||
route.forEach(function (t) {
|
||
if (t === 'up' || t === 'down' || t === 'left' || t === 'right') {
|
||
if (t !== lastMove && cnt > 0) {
|
||
const char = lastMove[0];
|
||
if (char) {
|
||
ans += char.toUpperCase();
|
||
}
|
||
if (cnt > 1) ans += cnt;
|
||
cnt = 0;
|
||
}
|
||
lastMove = t;
|
||
cnt++;
|
||
} else {
|
||
if (cnt > 0) {
|
||
const char = lastMove[0];
|
||
if (char) {
|
||
ans += char.toUpperCase();
|
||
}
|
||
if (cnt > 1) ans += cnt;
|
||
cnt = 0;
|
||
}
|
||
ans += core.utils._encodeRoute_encodeOne(t);
|
||
}
|
||
});
|
||
if (cnt > 0) {
|
||
ans += lastMove[0].toUpperCase();
|
||
if (cnt > 1) ans += cnt;
|
||
}
|
||
if (!compress) {
|
||
return '!!' + ans;
|
||
} else {
|
||
return LZString.compressToBase64(ans);
|
||
}
|
||
};
|
||
|
||
utils.prototype._encodeRoute_id2number = function (id) {
|
||
var number = core.maps.getNumberById(id);
|
||
return number === 0 ? id : number;
|
||
};
|
||
|
||
utils.prototype._encodeRoute_encodeOne = function (t) {
|
||
if (t.startsWith('item:'))
|
||
return 'I' + this._encodeRoute_id2number(t.slice(5)) + ':';
|
||
else if (t.startsWith('unEquip:')) return 'u' + t.slice(8);
|
||
else if (t.startsWith('saveEquip:')) return 's' + t.slice(10);
|
||
else if (t.startsWith('loadEquip:')) return 'l' + t.slice(10);
|
||
else if (t.startsWith('fly:')) return 'F' + t.slice(4) + ':';
|
||
else if (t === 'choices:none') return 'c';
|
||
else if (t.startsWith('choices:')) return 'C' + t.slice(8);
|
||
else if (t.startsWith('shop:')) return 'S' + t.slice(5) + ':';
|
||
else if (t === 'turn') return 'T';
|
||
else if (t.startsWith('turn:')) return 't' + t[5].toUpperCase() + ':';
|
||
else if (t === 'getNext') return 'G';
|
||
else if (t === 'input:none') return 'p';
|
||
else if (t.startsWith('input:')) return 'P' + t.slice(6);
|
||
else if (t.startsWith('input2:')) return 'Q' + t.slice(7) + ':';
|
||
else if (t === 'no') return 'N';
|
||
else if (t.startsWith('move:')) return 'M' + t.slice(5);
|
||
else if (t.startsWith('key:')) return 'K' + t.slice(4);
|
||
else if (t.startsWith('click:')) return 'k' + t.slice(6);
|
||
else if (t.startsWith('random:')) return 'X' + t.slice(7);
|
||
return '(' + t + ')';
|
||
};
|
||
|
||
////// 解密路线 //////
|
||
utils.prototype.decodeRoute = function (route) {
|
||
if (!route) return route;
|
||
|
||
var decodeObj = { index: 0, ans: [] };
|
||
if (route.startsWith('!!')) decodeObj.index = 2;
|
||
else {
|
||
var v = LZString.decompressFromBase64(route);
|
||
if (v != null && /^[-_a-zA-Z0-9+\/=:()]*$/.test(v)) {
|
||
if (v != '' || route.length < 8) route = v;
|
||
}
|
||
}
|
||
decodeObj.route = route;
|
||
|
||
while (decodeObj.index < decodeObj.route.length) {
|
||
this._decodeRoute_decodeOne(
|
||
decodeObj,
|
||
decodeObj.route.charAt(decodeObj.index++)
|
||
);
|
||
}
|
||
|
||
return decodeObj.ans;
|
||
};
|
||
|
||
utils.prototype._decodeRoute_getNumber = function (decodeObj, noparse) {
|
||
var num = '';
|
||
var first = true;
|
||
while (true) {
|
||
var ch = decodeObj.route.charAt(decodeObj.index);
|
||
if (ch >= '0' && ch <= '9') num += ch;
|
||
else if (ch == '-' && first) num += ch;
|
||
else break;
|
||
first = false;
|
||
decodeObj.index++;
|
||
}
|
||
if (num.length == 0) num = '1';
|
||
return noparse ? num : parseInt(num);
|
||
};
|
||
|
||
utils.prototype._decodeRoute_getString = function (decodeObj) {
|
||
var str = '';
|
||
while (
|
||
decodeObj.index < decodeObj.route.length &&
|
||
decodeObj.route.charAt(decodeObj.index) != ':'
|
||
) {
|
||
str += decodeObj.route.charAt(decodeObj.index++);
|
||
}
|
||
decodeObj.index++;
|
||
return str;
|
||
};
|
||
|
||
utils.prototype._decodeRoute_number2id = function (number) {
|
||
if (/^\d+$/.test(number)) {
|
||
var info = core.maps.blocksInfo[number];
|
||
if (info) return info.id;
|
||
}
|
||
return number;
|
||
};
|
||
|
||
utils.prototype._decodeRoute_decodeOne = function (decodeObj, c) {
|
||
// --- 特殊处理自定义项
|
||
if (c == '(') {
|
||
var idx = decodeObj.route.indexOf(')', decodeObj.index);
|
||
if (idx >= 0) {
|
||
decodeObj.ans.push(decodeObj.route.substring(decodeObj.index, idx));
|
||
decodeObj.index = idx + 1;
|
||
return;
|
||
}
|
||
}
|
||
var nxt =
|
||
c == 'I' || c == 'e' || c == 'F' || c == 'S' || c == 'Q' || c == 't'
|
||
? this._decodeRoute_getString(decodeObj)
|
||
: this._decodeRoute_getNumber(decodeObj);
|
||
|
||
var mp = { U: 'up', D: 'down', L: 'left', R: 'right' };
|
||
|
||
switch (c) {
|
||
case 'U':
|
||
case 'D':
|
||
case 'L':
|
||
case 'R':
|
||
for (var i = 0; i < nxt; i++) decodeObj.ans.push(mp[c]);
|
||
break;
|
||
case 'I':
|
||
decodeObj.ans.push('item:' + this._decodeRoute_number2id(nxt));
|
||
break;
|
||
case 'u':
|
||
decodeObj.ans.push('unEquip:' + nxt);
|
||
break;
|
||
case 'e':
|
||
decodeObj.ans.push('equip:' + this._decodeRoute_number2id(nxt));
|
||
break;
|
||
case 's':
|
||
decodeObj.ans.push('saveEquip:' + nxt);
|
||
break;
|
||
case 'l':
|
||
decodeObj.ans.push('loadEquip:' + nxt);
|
||
break;
|
||
case 'F':
|
||
decodeObj.ans.push('fly:' + nxt);
|
||
break;
|
||
case 'c':
|
||
decodeObj.ans.push('choices:none');
|
||
break;
|
||
case 'C':
|
||
decodeObj.ans.push('choices:' + nxt);
|
||
break;
|
||
case 'S':
|
||
decodeObj.ans.push('shop:' + nxt);
|
||
break;
|
||
case 'T':
|
||
decodeObj.ans.push('turn');
|
||
break;
|
||
case 't':
|
||
decodeObj.ans.push('turn:' + mp[nxt]);
|
||
break;
|
||
case 'G':
|
||
decodeObj.ans.push('getNext');
|
||
break;
|
||
case 'p':
|
||
decodeObj.ans.push('input:none');
|
||
break;
|
||
case 'P':
|
||
decodeObj.ans.push('input:' + nxt);
|
||
break;
|
||
case 'Q':
|
||
decodeObj.ans.push('input2:' + nxt);
|
||
break;
|
||
case 'N':
|
||
decodeObj.ans.push('no');
|
||
break;
|
||
case 'M':
|
||
++decodeObj.index;
|
||
decodeObj.ans.push(
|
||
'move:' + nxt + ':' + this._decodeRoute_getNumber(decodeObj)
|
||
);
|
||
break;
|
||
case 'K':
|
||
decodeObj.ans.push('key:' + nxt);
|
||
break;
|
||
case 'k':
|
||
++decodeObj.index;
|
||
var px = this._decodeRoute_getNumber(decodeObj);
|
||
++decodeObj.index;
|
||
var py = this._decodeRoute_getNumber(decodeObj);
|
||
decodeObj.ans.push('click:' + nxt + ':' + px + ':' + py);
|
||
break;
|
||
case 'X':
|
||
decodeObj.ans.push('random:' + nxt);
|
||
break;
|
||
}
|
||
};
|
||
|
||
////// 判断某对象是否不为null也不为NaN //////
|
||
utils.prototype.isset = function (val) {
|
||
return val != null && !(typeof val == 'number' && isNaN(val));
|
||
};
|
||
|
||
////// 获得子数组 //////
|
||
utils.prototype.subarray = function (a, b) {
|
||
if (!(a instanceof Array) || !(b instanceof Array) || a.length < b.length)
|
||
return null;
|
||
for (var i = 0; i < b.length; ++i) {
|
||
if (a[i] != b[i]) return null;
|
||
}
|
||
return a.slice(b.length);
|
||
};
|
||
|
||
utils.prototype.inArray = function (array, element) {
|
||
return array instanceof Array && array.includes(element);
|
||
};
|
||
|
||
utils.prototype.clamp = function (x, a, b) {
|
||
var min = Math.min(a, b),
|
||
max = Math.max(a, b);
|
||
return Math.min(Math.max(x || 0, min), max);
|
||
};
|
||
|
||
utils.prototype.getCookie = function (name) {
|
||
var match = document.cookie.match(new RegExp('(^| )' + name + '=([^;]+)'));
|
||
return match ? match[2] : null;
|
||
};
|
||
|
||
////// 设置statusBar的innerHTML，会自动斜体和放缩，也可以增加自定义css //////
|
||
utils.prototype.setStatusBarInnerHTML = function (name, value, css) {};
|
||
|
||
utils.prototype.strlen = function (str) {
|
||
var count = 0;
|
||
for (var i = 0, len = str.length; i < len; i++) {
|
||
count += str.charCodeAt(i) < 256 ? 1 : 2;
|
||
}
|
||
return count;
|
||
};
|
||
|
||
utils.prototype.turnDirection = function (turn, direction) {
|
||
direction = direction || core.getHeroLoc('direction');
|
||
var directionList = [
|
||
'left',
|
||
'leftup',
|
||
'up',
|
||
'rightup',
|
||
'right',
|
||
'rightdown',
|
||
'down',
|
||
'leftdown'
|
||
];
|
||
if (directionList.indexOf(turn) >= 0) return turn;
|
||
if (turn == ':hero') return core.getHeroLoc('direction');
|
||
if (turn == ':backhero')
|
||
return this.turnDirection(':back', core.getHeroLoc('direction'));
|
||
if (typeof turn === 'number' && turn % 45 == 0) turn /= 45;
|
||
else {
|
||
switch (turn) {
|
||
case ':left':
|
||
turn = 6;
|
||
break; // turn left
|
||
case ':right':
|
||
turn = 2;
|
||
break; // turn right
|
||
case ':back':
|
||
turn = 4;
|
||
break; // turn back
|
||
default:
|
||
turn = 0;
|
||
break;
|
||
}
|
||
}
|
||
var index = directionList.indexOf(direction);
|
||
if (index < 0) return direction;
|
||
return directionList[(index + (turn || 0)) % directionList.length];
|
||
};
|
||
|
||
utils.prototype.matchWildcard = function (pattern, string) {
|
||
try {
|
||
return new RegExp(
|
||
'^' +
|
||
pattern
|
||
.split(/\*+/)
|
||
.map(function (s) {
|
||
return s.replace(/[|\\{}()[\]^$+*?.]/g, '\\$&');
|
||
})
|
||
.join('.*') +
|
||
'$'
|
||
).test(string);
|
||
} catch (e) {
|
||
return false;
|
||
}
|
||
};
|
||
|
||
utils.prototype.matchRegex = function (pattern, string) {
|
||
try {
|
||
if (pattern.startsWith('^')) pattern = pattern.substring(1);
|
||
if (pattern.endsWith('$'))
|
||
pattern = pattern.substring(0, pattern.length - 1);
|
||
return new RegExp('^' + pattern + '$').test(string);
|
||
} catch (e) {
|
||
return false;
|
||
}
|
||
};
|
||
|
||
////// Base64加密 //////
|
||
utils.prototype.encodeBase64 = function (str) {
|
||
return btoa(
|
||
encodeURIComponent(str).replace(
|
||
/%([0-9A-F]{2})/g,
|
||
function (match, p1) {
|
||
return String.fromCharCode(parseInt(p1, 16));
|
||
}
|
||
)
|
||
);
|
||
};
|
||
|
||
////// Base64解密 //////
|
||
utils.prototype.decodeBase64 = function (str) {
|
||
return decodeURIComponent(
|
||
atob(str)
|
||
.split('')
|
||
.map(function (c) {
|
||
return '%' + ('00' + c.charCodeAt(0).toString(16)).slice(-2);
|
||
})
|
||
.join('')
|
||
);
|
||
};
|
||
|
||
utils.prototype.rand = function (num) {
|
||
var rand = core.getFlag('__rand__');
|
||
rand = this.__next_rand(rand);
|
||
core.setFlag('__rand__', rand);
|
||
var ans = rand / 2147483647;
|
||
if (num && num > 0) return Math.floor(ans * num);
|
||
return ans;
|
||
};
|
||
|
||
////// 生成随机数（录像方法） //////
|
||
utils.prototype.rand2 = function (num) {
|
||
num = num || 2147483648;
|
||
num = Math.abs(num);
|
||
|
||
var value;
|
||
if (core.isReplaying()) {
|
||
var action = core.status.replay.toReplay.shift();
|
||
if (action.indexOf('random:') == 0) {
|
||
value = parseInt(action.substring(7));
|
||
if (isNaN(value) || value >= num || value < 0) {
|
||
console.warn('错误！当前random:项超过范围。将重新随机生成！');
|
||
value = Math.floor(Math.random() * num);
|
||
}
|
||
} else {
|
||
console.warn('错误！当前需要一个random:项。将重新随机生成！');
|
||
value = Math.floor(Math.random() * num);
|
||
}
|
||
} else {
|
||
value = Math.floor(Math.random() * num);
|
||
}
|
||
core.status.route.push('random:' + value);
|
||
return value;
|
||
};
|
||
|
||
utils.prototype.__init_seed = function () {
|
||
var rand = (new Date().getTime() % 34834795) + 3534;
|
||
rand = this.__next_rand(rand);
|
||
rand = this.__next_rand(rand);
|
||
rand = this.__next_rand(rand);
|
||
core.setFlag('__seed__', rand);
|
||
core.setFlag('__rand__', rand);
|
||
};
|
||
|
||
utils.prototype.__next_rand = function (_rand) {
|
||
_rand = (_rand % 127773) * 16807 - ~~(_rand / 127773) * 2836;
|
||
_rand += _rand < 0 ? 2147483647 : 0;
|
||
return _rand;
|
||
};
|
||
|
||
////// 读取一个本地文件内容 //////
|
||
utils.prototype.readFile = function (success, error, accept, readType) {
|
||
core.platform.successCallback = success;
|
||
core.platform.errorCallback = error;
|
||
|
||
if (window.jsinterface) {
|
||
window.jsinterface.readFile();
|
||
return;
|
||
}
|
||
|
||
// step 0: 不为http/https，直接不支持
|
||
if (!core.platform.isOnline) {
|
||
alert('离线状态下不支持文件读取！');
|
||
if (error) error();
|
||
return;
|
||
}
|
||
|
||
// Step 1: 如果不支持FileReader，直接不支持
|
||
if (core.platform.fileReader == null) {
|
||
alert('当前浏览器不支持FileReader！');
|
||
if (error) error();
|
||
return;
|
||
}
|
||
|
||
if (core.platform.fileInput == null) {
|
||
core.platform.fileInput = document.createElement('input');
|
||
core.platform.fileInput.style.opacity = 0;
|
||
core.platform.fileInput.type = 'file';
|
||
core.platform.fileInput.onchange = function () {
|
||
var files = core.platform.fileInput.files;
|
||
if (files.length == 0) {
|
||
if (core.platform.errorCallback) core.platform.errorCallback();
|
||
return;
|
||
}
|
||
if (!readType)
|
||
core.platform.fileReader.readAsText(
|
||
core.platform.fileInput.files[0]
|
||
);
|
||
else
|
||
core.platform.fileReader.readAsDataURL(
|
||
core.platform.fileInput.files[0]
|
||
);
|
||
core.platform.fileInput.value = '';
|
||
};
|
||
}
|
||
core.platform.fileInput.value = '';
|
||
if (accept) core.platform.fileInput.accept = accept;
|
||
|
||
core.platform.fileInput.click();
|
||
};
|
||
|
||
////// 读取文件完毕 //////
|
||
utils.prototype.readFileContent = function (content) {
|
||
var obj = null;
|
||
if (content.slice(0, 4) === 'data') {
|
||
if (core.platform.successCallback)
|
||
core.platform.successCallback(content);
|
||
return;
|
||
}
|
||
// 检查base64
|
||
try {
|
||
obj = JSON.parse(LZString.decompressFromBase64(content));
|
||
} catch (e) {}
|
||
if (!obj) {
|
||
try {
|
||
obj = JSON.parse(content);
|
||
} catch (e) {
|
||
console.error(e);
|
||
}
|
||
}
|
||
|
||
if (obj) {
|
||
if (core.platform.successCallback) core.platform.successCallback(obj);
|
||
return;
|
||
}
|
||
|
||
if (core.platform.errorCallback) core.platform.errorCallback();
|
||
};
|
||
|
||
////// 下载文件到本地 //////
|
||
utils.prototype.download = function (filename, content) {
|
||
if (window.jsinterface) {
|
||
window.jsinterface.download(filename, content);
|
||
return;
|
||
}
|
||
|
||
// Step 0: 不为http/https，直接不支持
|
||
if (!core.platform.isOnline) {
|
||
alert('离线状态下不支持下载操作！');
|
||
return;
|
||
}
|
||
|
||
// Step 1: 如果是iOS平台，直接不支持
|
||
if (core.platform.isIOS) {
|
||
if (core.copy(content)) {
|
||
alert(
|
||
'iOS平台下不支持直接下载文件！\n所有应下载内容已经复制到您的剪切板，请自行创建空白文件并粘贴。'
|
||
);
|
||
} else {
|
||
alert('iOS平台下不支持下载操作！');
|
||
}
|
||
return;
|
||
}
|
||
|
||
// Step 2: 如果不是PC平台（Android），则只支持chrome
|
||
if (!core.platform.isPC) {
|
||
if (
|
||
!core.platform.isChrome ||
|
||
core.platform.isQQ ||
|
||
core.platform.isWeChat
|
||
) {
|
||
// 检测chrome
|
||
if (core.copy(content)) {
|
||
alert(
|
||
'移动端只有Chrome浏览器支持直接下载文件！\n所有应下载内容已经复制到您的剪切板，请自行创建空白文件并粘贴。'
|
||
);
|
||
} else {
|
||
alert('该平台或浏览器暂不支持下载操作！');
|
||
}
|
||
return;
|
||
}
|
||
}
|
||
|
||
// Step 3: 如果是Safari浏览器，则提示并打开新窗口
|
||
if (core.platform.isSafari) {
|
||
alert(
|
||
'你当前使用的是Safari浏览器，不支持直接下载文件。\n即将打开一个新窗口为应下载内容，请自行全选复制然后创建空白文件并粘贴。'
|
||
);
|
||
var blob = new Blob([content], { type: 'text/plain;charset=utf-8' });
|
||
var href = window.URL.createObjectURL(blob);
|
||
var opened = window.open(href, '_blank');
|
||
window.URL.revokeObjectURL(href);
|
||
return;
|
||
}
|
||
|
||
// Step 4: 下载
|
||
var blob = new Blob([content], { type: 'text/plain;charset=utf-8' });
|
||
if (window.navigator.msSaveOrOpenBlob) {
|
||
window.navigator.msSaveBlob(blob, filename);
|
||
} else {
|
||
var href = window.URL.createObjectURL(blob);
|
||
var elem = window.document.createElement('a');
|
||
elem.href = href;
|
||
elem.download = filename;
|
||
document.body.appendChild(elem);
|
||
elem.click();
|
||
document.body.removeChild(elem);
|
||
window.URL.revokeObjectURL(href);
|
||
}
|
||
};
|
||
|
||
////// 复制一段内容到剪切板 //////
|
||
utils.prototype.copy = function (data) {
|
||
if (window.jsinterface) {
|
||
window.jsinterface.copy(data);
|
||
return true;
|
||
}
|
||
|
||
if (!core.platform.supportCopy) return false;
|
||
|
||
var textArea = document.createElement('textarea');
|
||
textArea.style.position = 'fixed';
|
||
textArea.style.top = 0;
|
||
textArea.style.left = 0;
|
||
textArea.style.width = '2em';
|
||
textArea.style.height = '2em';
|
||
textArea.style.padding = 0;
|
||
textArea.style.border = 'none';
|
||
textArea.style.outline = 'none';
|
||
textArea.style.boxShadow = 'none';
|
||
textArea.style.background = 'transparent';
|
||
textArea.value = data;
|
||
document.body.appendChild(textArea);
|
||
textArea.focus();
|
||
textArea.setSelectionRange(0, textArea.value.length);
|
||
var successful = false;
|
||
try {
|
||
successful = document.execCommand('copy');
|
||
} catch (err) {
|
||
successful = false;
|
||
}
|
||
|
||
document.body.removeChild(textArea);
|
||
return successful;
|
||
};
|
||
|
||
////// 显示一段confirm //////
|
||
utils.prototype.myconfirm = function (hint, yesCallback, noCallback) {
|
||
main.dom.inputDiv.style.display = 'block';
|
||
main.dom.inputMessage.innerHTML = hint.replace(/\n/g, '<br/>');
|
||
main.dom.inputBox.style.display = 'none';
|
||
main.dom.inputYes.blur();
|
||
main.dom.inputNo.blur();
|
||
core.status.holdingKeys = [];
|
||
|
||
core.platform.successCallback = yesCallback;
|
||
core.platform.errorCallback = noCallback;
|
||
};
|
||
|
||
////// 让用户输入一段文字 //////
|
||
utils.prototype.myprompt = function (hint, value, callback) {
|
||
main.dom.inputDiv.style.display = 'block';
|
||
main.dom.inputMessage.innerHTML = hint.replace(/\n/g, '<br/>');
|
||
main.dom.inputBox.style.display = 'block';
|
||
main.dom.inputBox.value = value == null ? '' : value;
|
||
main.dom.inputYes.blur();
|
||
main.dom.inputNo.blur();
|
||
setTimeout(function () {
|
||
main.dom.inputBox.focus();
|
||
});
|
||
core.status.holdingKeys = [];
|
||
|
||
core.platform.successCallback = core.platform.errorCallback = callback;
|
||
};
|
||
|
||
////// 动画显示某对象 //////
|
||
utils.prototype.showWithAnimate = function (obj, speed, callback) {
|
||
obj.style.display = 'block';
|
||
if (!speed || main.mode != 'play') {
|
||
obj.style.opacity = 1;
|
||
if (callback) callback();
|
||
return;
|
||
}
|
||
obj.style.opacity = 0;
|
||
var opacityVal = 0;
|
||
var showAnimate = window.setInterval(function () {
|
||
opacityVal += 0.03;
|
||
obj.style.opacity = opacityVal;
|
||
if (opacityVal > 1) {
|
||
clearInterval(showAnimate);
|
||
if (callback) callback();
|
||
}
|
||
}, speed);
|
||
};
|
||
|
||
////// 动画使某对象消失 //////
|
||
utils.prototype.hideWithAnimate = function (obj, speed, callback) {
|
||
if (!speed || main.mode != 'play') {
|
||
obj.style.display = 'none';
|
||
if (callback) callback();
|
||
return;
|
||
}
|
||
obj.style.opacity = 1;
|
||
var opacityVal = 1;
|
||
var hideAnimate = window.setInterval(function () {
|
||
opacityVal -= 0.03;
|
||
obj.style.opacity = opacityVal;
|
||
if (opacityVal < 0) {
|
||
obj.style.display = 'none';
|
||
clearInterval(hideAnimate);
|
||
if (callback) callback();
|
||
}
|
||
}, speed);
|
||
};
|
||
|
||
////// 生成浏览器唯一的 guid //////
|
||
utils.prototype.getGuid = function () {
|
||
var guid = localStorage.getItem('guid');
|
||
if (guid != null) return guid;
|
||
guid = 'xxxxxxxx_xxxx_4xxx_yxxx_xxxxxxxxxxxx'.replace(
|
||
/[xy]/g,
|
||
function (c) {
|
||
var r = (Math.random() * 16) | 0,
|
||
v = c == 'x' ? r : (r & 0x3) | 0x8;
|
||
return v.toString(16);
|
||
}
|
||
);
|
||
localStorage.setItem('guid', guid);
|
||
return guid;
|
||
};
|
||
|
||
utils.prototype.hashCode = function (obj) {
|
||
if (typeof obj == 'string') {
|
||
var hash = 0,
|
||
i,
|
||
chr;
|
||
if (obj.length === 0) return hash;
|
||
for (i = 0; i < obj.length; i++) {
|
||
chr = obj.charCodeAt(i);
|
||
hash = (hash << 5) - hash + chr;
|
||
hash |= 0;
|
||
}
|
||
return hash;
|
||
}
|
||
return this.hashCode(JSON.stringify(obj).split('').sort().join(''));
|
||
};
|
||
|
||
utils.prototype.same = function (a, b) {
|
||
if (a === b) return true;
|
||
if (a == null || b == null) return false;
|
||
if (a instanceof Array && b instanceof Array) {
|
||
if (a.length !== b.length) return false;
|
||
for (var i = 0; i < a.length; i++) {
|
||
if (!this.same(a[i], b[i])) return false;
|
||
}
|
||
return true;
|
||
}
|
||
if (a instanceof Object && b instanceof Object) {
|
||
const toCompare = new Set([...Object.keys(a), ...Object.keys(b)]);
|
||
for (const key of toCompare) {
|
||
if (!this.same(a[key], b[key])) return false;
|
||
}
|
||
return true;
|
||
}
|
||
return false;
|
||
};
|
||
|
||
utils.prototype.unzip = function (
|
||
blobOrUrl,
|
||
success,
|
||
error,
|
||
convertToText,
|
||
onprogress
|
||
) {
|
||
var _error = function (msg) {
|
||
console.error(msg);
|
||
if (error) error(msg);
|
||
};
|
||
|
||
if (!window.zip) {
|
||
return _error('zip.js not exists!');
|
||
}
|
||
|
||
if (typeof blobOrUrl == 'string') {
|
||
return core.http(
|
||
'GET',
|
||
blobOrUrl,
|
||
null,
|
||
function (data) {
|
||
core.unzip(data, success, error, convertToText);
|
||
},
|
||
_error,
|
||
null,
|
||
'blob',
|
||
onprogress
|
||
);
|
||
}
|
||
|
||
if (!(blobOrUrl instanceof Blob)) {
|
||
return _error('Should use Blob or URL as input');
|
||
}
|
||
|
||
zip.createReader(
|
||
new zip.BlobReader(blobOrUrl),
|
||
function (reader) {
|
||
reader.getEntries(function (entries) {
|
||
core.utils._unzip_readEntries(
|
||
entries,
|
||
function (data) {
|
||
reader.close(function () {
|
||
if (success) success(data);
|
||
});
|
||
},
|
||
convertToText
|
||
);
|
||
});
|
||
},
|
||
_error
|
||
);
|
||
};
|
||
|
||
utils.prototype._unzip_readEntries = function (
|
||
entries,
|
||
success,
|
||
convertToText
|
||
) {
|
||
var results = {};
|
||
if (entries == null || entries.length == 0) {
|
||
return success(results);
|
||
}
|
||
var length = entries.length;
|
||
entries.forEach(function (entry) {
|
||
entry.getData(
|
||
convertToText ? new zip.TextWriter('utf8') : new zip.BlobWriter(),
|
||
function (data) {
|
||
results[entry.filename] = data;
|
||
length--;
|
||
if (length == 0) {
|
||
success(results);
|
||
}
|
||
}
|
||
);
|
||
});
|
||
};
|
||
|
||
utils.prototype.http = function (
|
||
type,
|
||
url,
|
||
formData,
|
||
success,
|
||
error,
|
||
mimeType,
|
||
responseType,
|
||
onprogress
|
||
) {
|
||
var xhr = new XMLHttpRequest();
|
||
xhr.open(type, url, true);
|
||
if (mimeType) xhr.overrideMimeType(mimeType);
|
||
if (responseType) xhr.responseType = responseType;
|
||
xhr.onload = function (e) {
|
||
if (xhr.status == 200) {
|
||
if (success) success(xhr.response);
|
||
} else {
|
||
if (error) error('HTTP ' + xhr.status);
|
||
}
|
||
};
|
||
xhr.onprogress = function (e) {
|
||
if (e.lengthComputable) {
|
||
if (onprogress) onprogress(e.loaded, e.total);
|
||
}
|
||
};
|
||
xhr.onabort = function () {
|
||
if (error) error('Abort');
|
||
};
|
||
xhr.ontimeout = function () {
|
||
if (error) error('Timeout');
|
||
};
|
||
xhr.onerror = function () {
|
||
if (error) error('Error on Connection');
|
||
};
|
||
if (formData) xhr.send(formData);
|
||
else xhr.send();
|
||
};
|
||
|
||
// LZW-compress
|
||
// https://gist.github.com/revolunet/843889
|
||
function lzw_encode(s) {
|
||
var dict = {};
|
||
var data = (s + '').split('');
|
||
var out = [];
|
||
var currChar;
|
||
var phrase = data[0];
|
||
var code = 256;
|
||
for (var i = 1; i < data.length; i++) {
|
||
currChar = data[i];
|
||
if (dict[phrase + currChar] != null) {
|
||
phrase += currChar;
|
||
} else {
|
||
out.push(phrase.length > 1 ? dict[phrase] : phrase.charCodeAt(0));
|
||
dict[phrase + currChar] = code;
|
||
code++;
|
||
phrase = currChar;
|
||
}
|
||
}
|
||
out.push(phrase.length > 1 ? dict[phrase] : phrase.charCodeAt(0));
|
||
for (var i = 0; i < out.length; i++) {
|
||
out[i] = String.fromCharCode(out[i]);
|
||
}
|
||
return out.join('');
|
||
}
|
||
|
||
// Decompress an LZW-encoded string
|
||
function lzw_decode(s) {
|
||
var dict = {};
|
||
var data = (s + '').split('');
|
||
var currChar = data[0];
|
||
var oldPhrase = currChar;
|
||
var out = [currChar];
|
||
var code = 256;
|
||
var phrase;
|
||
for (var i = 1; i < data.length; i++) {
|
||
var currCode = data[i].charCodeAt(0);
|
||
if (currCode < 256) {
|
||
phrase = data[i];
|
||
} else {
|
||
phrase = dict[currCode] ? dict[currCode] : oldPhrase + currChar;
|
||
}
|
||
out.push(phrase);
|
||
currChar = phrase.charAt(0);
|
||
dict[code] = oldPhrase + currChar;
|
||
code++;
|
||
oldPhrase = phrase;
|
||
}
|
||
return out.join('');
|
||
}
|