343 lines
10 KiB
TypeScript
343 lines
10 KiB
TypeScript
import { WATER_COLORS, PAPER_SIZE } from '../../constants/colors';
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import { WORDS } from '../../constants/words';
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import TextDrawService from '../../service/textDrawService';
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import { checkAndSaveImage } from '../../utils/saveImage';
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Page({
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canvas: null as Canvas | null,
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ctx: null as RenderingContext | null,
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boxHeight: 0,
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boxWidth: 0,
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textDrawService: null as TextDrawService | null,
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data: {
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cardList: [] as CardList,
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showColorPopup: false,
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currentKey: 0,
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currentColor: '',
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showIntroductionPopup: false,
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showSelectWordPopup: false, // 选择文字弹窗
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env: 'release',
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},
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onLoad() {
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const hasShowIntroduction =
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wx.getStorageSync('hasShowIntroduction') || false;
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if (!hasShowIntroduction) {
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this.setData({
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cardList: [
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{ color: '#FF0000', word: '涂' },
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{ color: '#00FF00', word: '鸦' },
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{ color: '#FF7F00', word: '丫' },
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{ color: '#00FFFF', word: '欢' },
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{ color: '#FFFF00', word: '迎' },
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{ color: '#8A2BE2', word: '您' },
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],
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showIntroductionPopup: true,
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env: getApp().globalData.env || 'release',
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});
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} else {
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this.setData({
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env: getApp().globalData.env || 'release',
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});
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}
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},
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onReady() {
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const query = wx.createSelectorQuery();
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query
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.select('#canvasWrapper')
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.boundingClientRect((rect) => {
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if (rect) {
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const { width, height } = PAPER_SIZE['A4'];
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const boxWidth = rect.width;
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const boxHeight = boxWidth / (width / height);
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this.boxHeight = boxHeight;
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this.boxWidth = boxWidth;
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this.initCanvas(boxWidth, boxHeight);
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}
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})
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.exec();
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},
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initCanvas(boxWidth: number, boxHeight: number) {
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wx.createSelectorQuery()
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.select('#canvasContent')
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.fields({
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node: true,
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size: true,
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})
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.exec((res) => {
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if (res[0] && res[0].node) {
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const canvas = res[0].node;
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const ctx = canvas.getContext('2d');
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if (ctx) {
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this.canvas = canvas;
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this.ctx = ctx;
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// const rect = res[0];
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this.textDrawService = new TextDrawService(canvas, ctx);
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// textDrawService.draw();
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this.setData({ boxWidth, boxHeight });
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this.drawCanvas();
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}
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}
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});
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},
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/** 变更cardList 并更新canvas */
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drawCanvas(
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updatedCardList?: Array<{ color: string; word: string }>,
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callback: () => void = () => { },
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) {
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if (updatedCardList) {
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this.setData({ cardList: updatedCardList }, () => {
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this.textDrawService?.draw(updatedCardList!);
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callback();
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});
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} else {
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updatedCardList = this.data.cardList;
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this.textDrawService?.draw(updatedCardList);
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}
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},
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tapCard(e: WechatMiniprogram.TouchEvent) {
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const { url } = e.currentTarget.dataset;
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wx.navigateTo({ url });
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},
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onConfirmInput(e: WechatMiniprogram.Input) {
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const { cardList } = this.data;
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const { value } = e.detail;
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const characters = value.split('');
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// 计算剩余空间
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const remainingSlots = 6 - cardList.length;
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if (remainingSlots <= 0) {
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wx.showToast({
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title: '最多只能添加6个字哦！',
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icon: 'none',
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duration: 2000,
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});
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return;
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}
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// 准备颜色数组
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const allColors = WATER_COLORS.basic12.map((color) => color.hex);
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const usedColors = cardList.map((item) => item.color);
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const usedWords = cardList.map((item) => item.word);
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const availableColors = allColors.filter(
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(color) => !usedColors.includes(color),
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);
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const shuffledColors = [...availableColors].sort(
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() => Math.random() - 0.5,
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);
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const newCharacters: string[] = [];
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let isBeyond = false;
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for (const char of characters) {
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if (newCharacters.length >= remainingSlots) {
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isBeyond = true;
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break;
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}
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if (!usedWords.includes(char) && !newCharacters.includes(char)) {
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newCharacters.push(char);
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}
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}
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if (isBeyond) {
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wx.showToast({
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title: '最多只能添加6个字，多余的字为被添加哦！',
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icon: 'none',
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duration: 2000,
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});
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}
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// 为新字符创建卡片
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const newCards = newCharacters.map((char) => {
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// 获取字对应的颜色
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const colorHex = this.getColorByWord(char);
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let color: string;
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if (colorHex && !usedColors.includes(colorHex)) {
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// 如果有对应颜色且未被使用,使用对应颜色
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color = colorHex;
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} else {
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// 否则随机选择一个可用颜色
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const randomIndex = Math.floor(Math.random() * shuffledColors.length);
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color = shuffledColors[randomIndex];
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// 从可用颜色中移除已使用的颜色
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shuffledColors.splice(randomIndex, 1);
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}
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return {
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word: char,
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color: color
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};
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});
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// 合并新旧卡片
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const updatedCardList = [...cardList, ...newCards];
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this.drawCanvas(updatedCardList);
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},
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deleteWordCard(e: WechatMiniprogram.CustomEvent) {
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const { key, word } = e.detail;
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const { cardList } = this.data;
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const updatedCardList = cardList.filter((_, index) => index !== key);
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this.drawCanvas(updatedCardList, () => {
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wx.showToast({
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title: `已删除 "${word}"`,
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icon: 'none',
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duration: 2000,
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});
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});
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},
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/** 下载打印 */
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exportToPrint() {
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if (this.canvas && this.data.cardList.length > 0) {
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checkAndSaveImage(this.canvas);
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return;
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}
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},
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onColorTap(e: WechatMiniprogram.CustomEvent) {
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const { key, word, color } = e.detail;
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this.setData({
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showColorPopup: true,
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currentKey: key,
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currentColor: color,
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});
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},
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onCloseColorPopup() {
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this.setData({
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showColorPopup: false,
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currentKey: 0,
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currentColor: '',
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});
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},
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onChangeColor(e: WechatMiniprogram.CustomEvent) {
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const { color } = e.detail;
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const { currentKey, cardList } = this.data;
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cardList[currentKey].color = color;
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this.setData(
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{
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showColorPopup: false,
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cardList,
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},
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() => {
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this.drawCanvas();
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},
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);
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},
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onCloseIntroductionPopup() {
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this.setData({ showIntroductionPopup: false });
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wx.setStorageSync('hasShowIntroduction', true);
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},
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onShareAppMessage() {
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return {
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title: '涂鸦丫 - 涂色|识字|画画|打印',
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path: '/pages/index/index',
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};
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},
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onShareTimeline() {
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return {
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title: '涂鸦丫 - 涂色|识字|画画|打印',
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query: '/pages/index/index',
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};
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},
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clearCardList() {
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this.drawCanvas([]);
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},
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// 随机生成
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refreshCardList() {
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// 获取前4个分类的所有文字
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const allWords = WORDS.slice(0, 2).reduce((acc, category) => {
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return acc.concat(category.words);
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}, [] as string[]);
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// 随机获取6个不重复的文字
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const selectedWords: string[] = [];
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while (selectedWords.length < 6) {
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const randomWord = allWords[Math.floor(Math.random() * allWords.length)];
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if (!selectedWords.includes(randomWord)) {
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selectedWords.push(randomWord);
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}
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}
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// 随机获取6个不重复的颜色
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const colors = [...WATER_COLORS.basic12];
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const selectedColors: string[] = [];
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while (selectedColors.length < 6) {
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const randomIndex = Math.floor(Math.random() * colors.length);
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const color = colors.splice(randomIndex, 1)[0];
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selectedColors.push(color.hex);
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}
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// 组合文字和颜色
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const cardList = selectedWords.map((word, index) => ({
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color: selectedColors[index],
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word
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}));
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this.drawCanvas(cardList);
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},
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openSelectWordPopup() {
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this.setData({
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showSelectWordPopup: true,
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});
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},
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closeSelectWordPopup() {
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this.setData({
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showSelectWordPopup: false,
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});
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},
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// 获取颜色字对应的16进制颜色值
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getColorByWord(word: string): string | null {
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const colorMap: Record<string, string> = {
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'红': '#FF0000',
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'蓝': '#0000FF',
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'绿': '#00FF00',
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'黄': '#FFFF00',
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'黑': '#000000',
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'白': '#FFFFFF',
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'紫': '#800080',
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'橙': '#FF7F00',
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'粉': '#FF69B4',
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'棕': '#A52A2A',
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'灰': '#808080'
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};
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return colorMap[word] || null;
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},
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onChangeWord(e: WechatMiniprogram.CustomEvent) {
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const selectedWords = e.detail.selectedWords as string[];
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const colors = [...WATER_COLORS.basic12];
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const cardList = selectedWords.map((word, index) => {
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const colorHex = this.getColorByWord(word);
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return {
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color: colorHex || colors[index].hex,
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word
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};
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});
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this.setData({ showSelectWordPopup: false });
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this.drawCanvas(cardList);
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},
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onDebugEntryTap() {
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wx.navigateTo({
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url: '/pages/debug/debug',
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});
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},
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});
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