1341 lines
44 KiB
JavaScript
1341 lines
44 KiB
JavaScript
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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${和}（表达式）进行替换 //////
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utils.prototype.replaceText = function (text, prefix) {
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if (typeof text != 'string') return text;
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var index = text.indexOf("${");
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if (index < 0) return text;
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var cnt = 0, curr = index;
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while (++curr < text.length) {
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if (text.charAt(curr) == '{') cnt++;
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if (text.charAt(curr) == '}') cnt--;
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if (cnt == 0) break;
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}
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if (cnt != 0) return text;
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var value = core.calValue(text.substring(index + 2, curr), prefix);
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if (value == null) value = "";
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return text.substring(0, index) + value + core.replaceText(text.substring(curr + 1), prefix);
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}
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utils.prototype.replaceValue = function (value) {
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if (typeof value == "string" && (value.indexOf(":") >= 0 || value.indexOf("flag：") >= 0 || value.indexOf('global：') >= 0)) {
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if (value.indexOf('status:') >= 0)
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value = value.replace(/status:([a-zA-Z0-9_]+)/g, "core.getStatus('$1')");
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if (value.indexOf('buff:') >= 0)
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value = value.replace(/buff:([a-zA-Z0-9_]+)/g, "core.getBuff('$1')");
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if (value.indexOf('item:') >= 0)
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value = value.replace(/item:([a-zA-Z0-9_]+)/g, "core.itemCount('$1')");
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if (value.indexOf('flag:') >= 0 || value.indexOf('flag：') >= 0)
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value = value.replace(/flag[:：]([a-zA-Z0-9_\u4E00-\u9FCC\u3040-\u30FF\u2160-\u216B\u0391-\u03C9]+)/g, "core.getFlag('$1', 0)");
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//if (value.indexOf('switch:' >= 0))
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// value = value.replace(/switch:([a-zA-Z0-9_]+)/g, "core.getFlag('" + (prefix || ":f@x@y") + "@$1', 0)");
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if (value.indexOf('global:') >= 0 || value.indexOf('global：') >= 0)
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value = value.replace(/global[:：]([a-zA-Z0-9_\u4E00-\u9FCC\u3040-\u30FF\u2160-\u216B\u0391-\u03C9]+)/g, "core.getGlobal('$1', 0)");
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if (value.indexOf('enemy:') >= 0)
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value = value.replace(/enemy:([a-zA-Z0-9_]+)[\.:]([a-zA-Z0-9_]+)/g, "core.material.enemys['$1'].$2");
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if (value.indexOf('blockId:') >= 0)
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value = value.replace(/blockId:(\d+),(\d+)/g, "core.getBlockId($1, $2)");
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if (value.indexOf('blockNumber:') >= 0)
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value = value.replace(/blockNumber:(\d+),(\d+)/g, "core.getBlockNumber($1, $2)");
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if (value.indexOf('blockCls:') >= 0)
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value = value.replace(/blockCls:(\d+),(\d+)/g, "core.getBlockCls($1, $2)");
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if (value.indexOf('equip:') >= 0)
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value = value.replace(/equip:(\d)/g, "core.getEquip($1)");
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if (value.indexOf('temp:') >= 0)
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value = value.replace(/temp:([a-zA-Z0-9_]+)/g, "core.getFlag('@temp@$1', 0)");
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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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if (value.indexOf(':') >= 0 || value.indexOf("flag：") >= 0 || value.indexOf('global：') >= 0) {
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if (value.indexOf('switch:') >= 0)
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value = value.replace(/switch:([a-zA-Z0-9_]+)/g, "core.getFlag('" + (prefix || ":f@x@y") + "@$1', 0)");
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value = this.replaceValue(value);
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}
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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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core.clone(b).reverse().forEach(function (e) {
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a.unshift(e);
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});
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}
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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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core.clone(b).forEach(function (e) {
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a.push(e);
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});
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}
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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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}
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catch (e) {
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}
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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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}
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catch (e) {
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}
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try {
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return JSON.parse(value);
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}
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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(/[\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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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)) core.saves.ids[parseInt(key.substring(4))] = true;
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return true;
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}
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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(localStorage.getItem(core.firstData.name + "_" + key));
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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+$/.test(key)) delete core.saves.ids[parseInt(key.substring(4))];
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}
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utils.prototype.setLocalForage = function (key, value, successCallback, errorCallback) {
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if (value == null) {
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this.removeLocalForage(key);
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return;
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}
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var name = core.firstData.name + "_" + key;
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var str = JSON.stringify(value).replace(/[\u007F-\uFFFF]/g, function (chr) {
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return "\\u" + ("0000" + chr.charCodeAt(0).toString(16)).substr(-4)
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});
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var callback = function (err) {
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if (err) {
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if (errorCallback) errorCallback(err);
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}
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else {
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if (key == 'autoSave') core.saves.ids[0] = true;
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else if (/^save\d+$/.test(key)) 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 = 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 (key, defaultValue, successCallback, errorCallback) {
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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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}
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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 (key, successCallback, errorCallback) {
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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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}
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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)) 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("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('__global__' + key, 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("input2:" + core.encodeBase64(JSON.stringify(value)));
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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
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if (data instanceof Date) {
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var copy = new Date();
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copy.setTime(data.getTime());
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return copy;
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}
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// array
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if (data instanceof Array) {
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var copy = [];
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for (var i in data) {
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if (!filter || filter(i, data[i]))
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copy[i] = core.clone(data[i], recursion ? filter : null, recursion);
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}
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return copy;
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}
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// 函数
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if (data instanceof Function) {
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return data;
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}
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// object
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if (data instanceof Object) {
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var copy = {};
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for (var i in data) {
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if (data.hasOwnProperty(i) && (!filter || filter(i, data[i])))
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copy[i] = core.clone(data[i], recursion ? filter : null, recursion);
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}
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return copy;
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}
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return data;
|
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}
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////// 深拷贝1D/2D数组优化 //////
|
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utils.prototype.cloneArray = function (data) {
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if (!(data instanceof Array)) return this.clone(data);
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if (data[0] instanceof Array) {
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return data.map(function (one) { return one.slice(); });
|
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} else {
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return data.slice();
|
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}
|
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}
|
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|
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////// 裁剪图片 //////
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utils.prototype.splitImage = function (image, width, height) {
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if (typeof image == "string") {
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image = core.getMappedName(image);
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image = core.material.images.images[image];
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||
}
|
||
if (!image) return [];
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width = width || 32;
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||
height = height || width;
|
||
var canvas = document.createElement("canvas");
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||
var ctx = canvas.getContext("2d");
|
||
var ans = [];
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||
for (var j = 0; j < image.height; j += height) {
|
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for (var i = 0; i < image.width; i += width) {
|
||
var w = Math.min(width, image.width - i), h = Math.min(height, image.height - j);
|
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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(parseInt(time / 3600000))
|
||
+ ":" + core.setTwoDigits(parseInt(time / 60000) % 60)
|
||
+ ":" + core.setTwoDigits(parseInt(time / 1000) % 60);
|
||
}
|
||
|
||
////// 两位数显示 //////
|
||
utils.prototype.setTwoDigits = function (x) {
|
||
return (parseInt(x) < 10 && parseInt(x) >= 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 (digits === true) digits = 5; // 兼容旧版onMap参数
|
||
if (!digits || digits < 5) digits = 6; // 连同负号、小数点和后缀字母在内的总位数，至少需为5，默认为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 ? '-' : '';
|
||
if (sign) --digits; // 符号位单独处理，负号要占一位
|
||
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).substring(0, digits);
|
||
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 "#" + ((1 << 24) + (nowR << 16) + (nowG << 8) + nowB).toString(16).slice(1);
|
||
}
|
||
|
||
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) {
|
||
var ans = "", lastMove = "", cnt = 0;
|
||
|
||
route.forEach(function (t) {
|
||
if (t == 'up' || t == 'down' || t == 'left' || t == 'right') {
|
||
if (t != lastMove && cnt > 0) {
|
||
ans += lastMove.substring(0, 1).toUpperCase();
|
||
if (cnt > 1) ans += cnt;
|
||
cnt = 0;
|
||
}
|
||
lastMove = t;
|
||
cnt++;
|
||
}
|
||
else {
|
||
if (cnt > 0) {
|
||
ans += lastMove.substring(0, 1).toUpperCase();
|
||
if (cnt > 1) ans += cnt;
|
||
cnt = 0;
|
||
}
|
||
ans += core.utils._encodeRoute_encodeOne(t);
|
||
}
|
||
});
|
||
if (cnt > 0) {
|
||
ans += lastMove.substring(0, 1).toUpperCase();
|
||
if (cnt > 1) ans += cnt;
|
||
}
|
||
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.indexOf('item:') == 0)
|
||
return "I" + this._encodeRoute_id2number(t.substring(5)) + ":";
|
||
else if (t.indexOf('unEquip:') == 0)
|
||
return "u" + t.substring(8);
|
||
else if (t.indexOf('equip:') == 0)
|
||
return "e" + this._encodeRoute_id2number(t.substring(6)) + ":";
|
||
else if (t.indexOf('saveEquip:') == 0)
|
||
return "s" + t.substring(10);
|
||
else if (t.indexOf('loadEquip:') == 0)
|
||
return "l" + t.substring(10);
|
||
else if (t.indexOf('fly:') == 0)
|
||
return "F" + t.substring(4) + ":";
|
||
else if (t == 'choices:none')
|
||
return "c";
|
||
else if (t.indexOf('choices:') == 0)
|
||
return "C" + t.substring(8);
|
||
else if (t.indexOf('shop:') == 0)
|
||
return "S" + t.substring(5) + ":";
|
||
else if (t == 'turn')
|
||
return 'T';
|
||
else if (t.indexOf('turn:') == 0)
|
||
return "t" + t.substring(5).substring(0, 1).toUpperCase() + ":";
|
||
else if (t == 'getNext')
|
||
return 'G';
|
||
else if (t == 'input:none')
|
||
return 'p';
|
||
else if (t.indexOf('input:') == 0)
|
||
return "P" + t.substring(6);
|
||
else if (t.indexOf('input2:') == 0)
|
||
return "Q" + t.substring(7) + ":";
|
||
else if (t == 'no')
|
||
return 'N';
|
||
else if (t.indexOf('move:') == 0)
|
||
return "M" + t.substring(5);
|
||
else if (t.indexOf('key:') == 0)
|
||
return 'K' + t.substring(4);
|
||
else if (t.indexOf('click:') == 0)
|
||
return 'k' + t.substring(6);
|
||
else if (t.indexOf('random:') == 0)
|
||
return 'X' + t.substring(7);
|
||
return '(' + t + ')';
|
||
}
|
||
|
||
////// 解密路线 //////
|
||
utils.prototype.decodeRoute = function (route) {
|
||
if (!route) return route;
|
||
|
||
// 解压缩
|
||
try {
|
||
var v = LZString.decompressFromBase64(route);
|
||
if (v != null && /^[-_a-zA-Z0-9+\/=:()]*$/.test(v)) {
|
||
if (v != "" || route.length < 8)
|
||
route = v;
|
||
}
|
||
} catch (e) {
|
||
}
|
||
|
||
var decodeObj = { route: route, index: 0, ans: [] };
|
||
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.indexOf(element) >= 0;
|
||
}
|
||
|
||
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) {
|
||
if (!core.statusBar[name]) return;
|
||
if (typeof value == 'number') value = this.formatBigNumber(value);
|
||
var italic = /^[-a-zA-Z0-9`~!@#$%^&*()_=+\[{\]}\\|;:'",<.>\/?]*$/.test(value);
|
||
var style = 'font-style: ' + (italic ? 'italic' : 'normal') + '; ';
|
||
style += 'text-shadow: #000 1px 0 0, #000 0 1px 0, #000 -1px 0 0, #000 0 -1px 0; ';
|
||
// 判定是否需要缩放
|
||
var length = this.strlen(value) || 1;
|
||
style += 'font-size: ' + Math.min(1, 7 / length) + 'em; ';
|
||
if (css) style += css;
|
||
var _style = core.statusBar[name].getAttribute('_style');
|
||
var _value = core.statusBar[name].getAttribute('_value');
|
||
if (_style == style) {
|
||
if (value == _value) return;
|
||
core.statusBar[name].children[0].innerText = value;
|
||
} else {
|
||
core.statusBar[name].innerHTML = "<span class='_status' style='" + style + "'></span>";
|
||
core.statusBar[name].children[0].innerText = value;
|
||
core.statusBar[name].setAttribute('_style', style);
|
||
}
|
||
core.statusBar[name].setAttribute('_value', value);;
|
||
}
|
||
|
||
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 == null && b == null) return true;
|
||
if (a == null || b == null) return false;
|
||
if (a === b) return true;
|
||
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) {
|
||
var obj = {};
|
||
for (var i in a) obj[i] = true;
|
||
for (var i in b) obj[i] = true;
|
||
for (var i in obj) {
|
||
if (!this.same(a[i], b[i])) 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("");
|
||
}
|