931 lines
32 KiB
TypeScript
931 lines
32 KiB
TypeScript
import React, { useEffect, useRef, useState } from "react";
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import {
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Scene,
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PerspectiveCamera,
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WebGLRenderer,
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SphereGeometry,
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MeshBasicMaterial,
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Mesh,
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AmbientLight,
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DirectionalLight,
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Vector2,
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Vector3,
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Raycaster,
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Group,
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BufferGeometry,
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LineBasicMaterial,
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Line,
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FrontSide
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} from "three";
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import type { Side } from "three";
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// 为requestIdleCallback添加类型声明
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interface RequestIdleCallbackOptions {
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timeout: number;
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}
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interface Window {
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requestIdleCallback?: (
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callback: (deadline: {
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didTimeout: boolean;
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timeRemaining: () => number;
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}) => void,
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opts?: RequestIdleCallbackOptions
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) => number;
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cancelIdleCallback?: (handle: number) => void;
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}
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// 需要懒加载的模块
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const loadControlsAndRenderers = () => Promise.all([
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import("three/examples/jsm/controls/OrbitControls.js"),
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import("three/examples/jsm/renderers/CSS2DRenderer.js")
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]);
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// WASM模块接口
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interface GeoWasmModule {
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GeoProcessor: new () => {
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process_geojson: (worldData: string, chinaData: string, visitedPlaces: string, scale: number) => void;
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get_boundary_lines: () => any[];
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find_nearest_country: (x: number, y: number, z: number, radius: number) => string | null;
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};
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default?: () => Promise<any>;
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}
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interface WorldHeatmapProps {
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visitedPlaces: string[];
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}
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const WorldHeatmap: React.FC<WorldHeatmapProps> = ({ visitedPlaces }) => {
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const containerRef = useRef<HTMLDivElement>(null);
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const [hoveredCountry, setHoveredCountry] = useState<string | null>(null);
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const [theme, setTheme] = useState<"light" | "dark">(
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typeof document !== "undefined" &&
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(document.documentElement.classList.contains("dark") ||
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document.documentElement.getAttribute("data-theme") === "dark")
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? "dark"
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: "light",
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);
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// 用于存储WASM模块和处理器实例
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const [wasmModule, setWasmModule] = useState<GeoWasmModule | null>(null);
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const [geoProcessor, setGeoProcessor] = useState<any>(null);
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const [wasmError, setWasmError] = useState<string | null>(null);
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// 添加状态标记WASM是否已准备好
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const [wasmReady, setWasmReady] = useState(false);
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// 添加地图数据状态
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const [mapData, setMapData] = useState<{
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worldData: any | null;
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chinaData: any | null;
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}>({ worldData: null, chinaData: null });
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// 添加地图加载状态
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const [mapLoading, setMapLoading] = useState(true);
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const [mapError, setMapError] = useState<string | null>(null);
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// 修改场景引用类型以适应新的导入方式
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const sceneRef = useRef<{
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scene: Scene;
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camera: PerspectiveCamera;
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renderer: WebGLRenderer;
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labelRenderer: any; // 后面会动态设置具体类型
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controls: any; // 后面会动态设置具体类型
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earth: Mesh;
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countries: Map<string, Group>;
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raycaster: Raycaster;
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mouse: Vector2;
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animationId: number | null;
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lastCameraPosition: Vector3 | null;
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lastMouseEvent: MouseEvent | null;
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lastClickedCountry: string | null;
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lastMouseX: number | null;
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lastMouseY: number | null;
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lastHoverTime: number | null;
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lineToCountryMap: Map<Line, string>;
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allLineObjects: Line[];
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} | null>(null);
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// 监听主题变化
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useEffect(() => {
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const handleThemeChange = () => {
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const isDark =
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document.documentElement.classList.contains("dark") ||
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document.documentElement.getAttribute("data-theme") === "dark";
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setTheme(isDark ? "dark" : "light");
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};
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// 创建 MutationObserver 来监听 class 和 data-theme 属性的变化
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const observer = new MutationObserver((mutations) => {
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mutations.forEach((mutation) => {
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if (
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(mutation.attributeName === "class" &&
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mutation.target === document.documentElement) ||
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(mutation.attributeName === "data-theme" &&
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mutation.target === document.documentElement)
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) {
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handleThemeChange();
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}
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});
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});
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// 开始观察
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observer.observe(document.documentElement, {
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attributes: true,
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attributeFilter: ["class", "data-theme"],
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});
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// 初始检查
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handleThemeChange();
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// 清理
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return () => {
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observer.disconnect();
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};
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}, []);
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// 从公共目录加载地图数据
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useEffect(() => {
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// 创建 AbortController 用于在组件卸载时取消请求
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const controller = new AbortController();
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const signal = controller.signal;
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const loadMapData = async () => {
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try {
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setMapLoading(true);
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setMapError(null);
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// 添加请求超时处理
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const timeout = setTimeout(() => controller.abort(), 30000); // 30秒超时
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// 从公共目录加载地图数据，并使用 signal 和缓存控制
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const [worldDataResponse, chinaDataResponse] = await Promise.all([
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fetch('/maps/world.zh.json', {
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signal,
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headers: { 'Cache-Control': 'no-cache' }
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}),
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fetch('/maps/china.json', {
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signal,
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headers: { 'Cache-Control': 'no-cache' }
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})
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]);
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clearTimeout(timeout);
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if (!worldDataResponse.ok || !chinaDataResponse.ok) {
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throw new Error('无法获取地图数据');
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}
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const worldData = await worldDataResponse.json();
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const chinaData = await chinaDataResponse.json();
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setMapData({
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worldData,
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chinaData
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});
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setMapLoading(false);
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} catch (err: any) {
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// 只有当请求不是被我们自己中断时才设置错误状态
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if (err.name !== 'AbortError') {
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console.error("加载地图数据失败:", err);
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const errorMessage = err instanceof Error ? err.message : String(err);
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setMapError(`地图数据加载失败: ${errorMessage}`);
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}
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setMapLoading(false);
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}
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};
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loadMapData();
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// 清理函数：组件卸载时中断请求
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return () => {
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controller.abort();
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};
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}, []);
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// 加载WASM模块
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useEffect(() => {
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const loadWasmModule = async () => {
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try {
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// 改为使用JS胶水文件方式加载WASM
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const wasm = await import(
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"@/assets/wasm/geo/geo_wasm.js"
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);
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if (typeof wasm.default === "function") {
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await wasm.default();
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}
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setWasmModule(wasm as unknown as GeoWasmModule);
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setWasmError(null);
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} catch (err: any) {
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console.error("加载WASM模块失败:", err);
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const errorMessage = err instanceof Error ? err.message : String(err);
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setWasmError(`WASM模块初始化失败: ${errorMessage}`);
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}
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};
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loadWasmModule();
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}, []);
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// 初始化WASM数据
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useEffect(() => {
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if (!wasmModule || !mapData.worldData || !mapData.chinaData) return;
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try {
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// 使用JS胶水层方式初始化WASM
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const geoProcessorInstance = new wasmModule.GeoProcessor();
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geoProcessorInstance.process_geojson(
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JSON.stringify(mapData.worldData),
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JSON.stringify(mapData.chinaData),
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JSON.stringify(visitedPlaces),
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2.01
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);
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setGeoProcessor(geoProcessorInstance);
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setWasmReady(true);
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} catch (error: any) {
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console.error("WASM数据处理失败:", error);
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const errorMessage = error instanceof Error ? error.message : String(error);
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setWasmError(`WASM数据处理失败: ${errorMessage}`);
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}
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}, [wasmModule, visitedPlaces, mapData.worldData, mapData.chinaData]);
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useEffect(() => {
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if (!containerRef.current || !wasmModule || !wasmReady || !geoProcessor) {
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return;
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}
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// 清理之前的场景
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if (sceneRef.current) {
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if (sceneRef.current.animationId !== null) {
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cancelAnimationFrame(sceneRef.current.animationId);
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}
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sceneRef.current.renderer.dispose();
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sceneRef.current.labelRenderer.domElement.remove();
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sceneRef.current.scene.clear();
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containerRef.current.innerHTML = "";
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}
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// 创建一个引用，用于清理函数
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let mounted = true;
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let cleanupFunctions: Array<() => void> = [];
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// 动态加载Three.js控制器和渲染器
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const initThreeScene = async () => {
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try {
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// 加载OrbitControls和CSS2DRenderer
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const [{ OrbitControls }, { CSS2DRenderer }] = await loadControlsAndRenderers();
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// 如果组件已卸载，退出初始化
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if (!mounted || !containerRef.current) return;
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// 检查当前是否为暗色模式
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const isDarkMode =
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document.documentElement.classList.contains("dark") ||
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document.documentElement.getAttribute("data-theme") === "dark";
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// 根据当前模式设置颜色
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const getColors = () => {
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return {
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earthBase: isDarkMode ? "#111827" : "#2a4d69", // 深色模式保持深色，浅色模式改为更柔和的蓝色
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visited: isDarkMode ? "#065f46" : "#34d399", // 访问过的颜色更鲜明
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border: isDarkMode ? "#6b7280" : "#e0e0e0", // 边界颜色调整为更亮的浅灰色
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visitedBorder: isDarkMode ? "#10b981" : "#0d9488", // 访问过的边界颜色
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chinaBorder: isDarkMode ? "#f87171" : "#ef4444", // 中国边界使用红色
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text: isDarkMode ? "#f9fafb" : "#1f2937", // 文本颜色对比更强
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highlight: isDarkMode ? "#fcd34d" : "#60a5fa", // 高亮颜色改为浅蓝色，更配合背景
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};
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};
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const colors = getColors();
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// 创建场景
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const scene = new Scene();
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scene.background = null;
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// 创建材质的辅助函数
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const createMaterial = (
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color: string,
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side: Side = FrontSide,
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opacity: number = 1.0,
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) => {
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return new MeshBasicMaterial({
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color: color,
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side: side,
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transparent: true,
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opacity: opacity,
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});
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};
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// 创建地球几何体
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const earthGeometry = new SphereGeometry(2.0, 64, 64);
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const earthMaterial = createMaterial(
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colors.earthBase,
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FrontSide,
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isDarkMode ? 0.9 : 0.9, // 调整明亮模式下的不透明度
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);
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const earth = new Mesh(earthGeometry, earthMaterial);
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earth.renderOrder = 1;
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scene.add(earth);
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// 添加光源
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const ambientLight = new AmbientLight(
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0xffffff,
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isDarkMode ? 0.7 : 0.85, // 微调明亮模式下的光照强度
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);
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scene.add(ambientLight);
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const directionalLight = new DirectionalLight(
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isDarkMode ? 0xeeeeff : 0xffffff, // 恢复明亮模式下的纯白光源
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isDarkMode ? 0.6 : 0.65, // 微调明亮模式下的定向光强度
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);
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directionalLight.position.set(5, 3, 5);
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scene.add(directionalLight);
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// 创建相机
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const camera = new PerspectiveCamera(
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45,
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containerRef.current.clientWidth / containerRef.current.clientHeight,
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0.1,
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1000,
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);
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camera.position.z = 8;
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// 创建渲染器
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const renderer = new WebGLRenderer({
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antialias: true,
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alpha: true,
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logarithmicDepthBuffer: true,
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preserveDrawingBuffer: true,
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precision: "highp",
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});
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renderer.sortObjects = true;
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renderer.setClearColor(0x000000, 0);
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renderer.setPixelRatio(window.devicePixelRatio);
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renderer.setSize(
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containerRef.current.clientWidth,
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containerRef.current.clientHeight,
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);
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containerRef.current.appendChild(renderer.domElement);
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// 创建CSS2D渲染器用于标签
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const labelRenderer = new CSS2DRenderer();
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labelRenderer.setSize(
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containerRef.current.clientWidth,
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containerRef.current.clientHeight,
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);
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labelRenderer.domElement.style.position = "absolute";
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labelRenderer.domElement.style.top = "0";
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labelRenderer.domElement.style.pointerEvents = "none";
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containerRef.current.appendChild(labelRenderer.domElement);
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// 添加控制器
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const controls = new OrbitControls(camera, renderer.domElement);
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controls.enableDamping = true;
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controls.dampingFactor = 0.25; // 大幅增加阻尼因子，从0.1到0.25提高稳定性
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controls.rotateSpeed = 0.2; // 降低旋转速度，提高稳定性
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controls.autoRotate = true;
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controls.autoRotateSpeed = 0.3; // 降低自动旋转速度
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controls.minDistance = 5;
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controls.maxDistance = 15;
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controls.minPolarAngle = Math.PI * 0.1;
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controls.maxPolarAngle = Math.PI * 0.9;
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controls.addEventListener("change", () => {
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if (sceneRef.current) {
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renderer.render(scene, camera);
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labelRenderer.render(scene, camera);
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}
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});
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// 保存所有线条对象的引用，用于快速检测
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const allLineObjects: Line[] = [];
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const lineToCountryMap = new Map<Line, string>();
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// 创建国家边界组
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const countryGroup = new Group();
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earth.add(countryGroup);
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// 创建国家边界
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const countries = new Map<string, Group>();
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// 从WASM获取边界线数据
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const boundaryLines = geoProcessor.get_boundary_lines();
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// 处理边界线数据
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if (boundaryLines) {
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// 遍历所有边界线
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for (const boundaryLine of boundaryLines) {
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const { points, region_name, is_visited } = boundaryLine;
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// 创建区域组
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const regionObject = new Group();
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regionObject.userData = { name: region_name, isVisited: is_visited };
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// 转换点数组为Vector3数组
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const threePoints = points.map((p: { x: number; y: number; z: number }) => new Vector3(p.x, p.y, p.z));
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// 创建边界线
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if (threePoints.length > 1) {
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const lineGeometry = new BufferGeometry().setFromPoints(threePoints);
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// 确定线条颜色
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const isChina = region_name === "中国" || region_name.startsWith("中国-");
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let borderColor;
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if (is_visited) {
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// 已访问的地区，包括中国城市，都使用绿色边界
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borderColor = colors.visitedBorder;
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} else if (isChina) {
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// 未访问的中国和中国区域使用红色边界
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borderColor = colors.chinaBorder;
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} else {
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// 其他未访问区域使用默认边界颜色
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borderColor = colors.border;
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}
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const lineMaterial = new LineBasicMaterial({
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color: borderColor,
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linewidth: is_visited ? 1.8 : 1.2, // 微调线条宽度，保持已访问区域更明显
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transparent: true,
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opacity: is_visited ? 0.95 : 0.85, // 调整不透明度，使边界明显但不突兀
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});
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const line = new Line(lineGeometry, lineMaterial);
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line.userData = {
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name: region_name,
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isVisited: is_visited,
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originalColor: borderColor,
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highlightColor: colors.highlight,
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};
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// 设置渲染顺序
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line.renderOrder = is_visited ? 3 : 2;
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regionObject.add(line);
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// 保存线条对象引用和对应的区域名称
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allLineObjects.push(line);
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lineToCountryMap.set(line, region_name);
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}
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// 添加区域对象到国家组
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countryGroup.add(regionObject);
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countries.set(region_name, regionObject);
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}
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}
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// 将视图旋转到中国位置
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||
const positionCameraToFaceChina = () => {
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||
// 检查是否为小屏幕
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||
const isSmallScreen =
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||
containerRef.current && containerRef.current.clientWidth < 640;
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||
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||
// 根据屏幕大小设置不同的相机初始位置
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||
let fixedPosition;
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||
if (isSmallScreen) {
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// 小屏幕显示距离更远，以便看到更多地球
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||
fixedPosition = new Vector3(-2.1, 3.41, -8.0);
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} else {
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// 大屏幕使用原来的位置
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||
fixedPosition = new Vector3(-2.1, 3.41, -6.5);
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||
}
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||
// 应用位置
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||
camera.position.copy(fixedPosition);
|
||
camera.lookAt(0, 0, 0);
|
||
controls.update();
|
||
|
||
// 确保自动旋转始终开启
|
||
controls.autoRotate = true;
|
||
|
||
// 渲染
|
||
renderer.render(scene, camera);
|
||
labelRenderer.render(scene, camera);
|
||
};
|
||
|
||
// 应用初始相机位置
|
||
positionCameraToFaceChina();
|
||
|
||
// 创建射线投射器用于鼠标交互
|
||
const raycaster = new Raycaster();
|
||
const mouse = new Vector2();
|
||
|
||
// 添加节流函数，限制鼠标移动事件的触发频率
|
||
const throttle = (func: Function, limit: number) => {
|
||
let inThrottle: boolean = false;
|
||
let lastFunc: number | null = null;
|
||
let lastRan: number | null = null;
|
||
|
||
return function (this: any, ...args: any[]) {
|
||
if (!inThrottle) {
|
||
func.apply(this, args);
|
||
inThrottle = true;
|
||
lastRan = Date.now();
|
||
setTimeout(() => (inThrottle = false), limit);
|
||
} else {
|
||
// 取消之前的延迟调用
|
||
if (lastFunc) clearTimeout(lastFunc);
|
||
|
||
// 如果距离上次执行已经接近阈值，确保我们能及时处理下一个事件
|
||
const sinceLastRan = Date.now() - (lastRan || 0);
|
||
if (sinceLastRan >= limit * 0.8) {
|
||
lastFunc = window.setTimeout(() => {
|
||
if (lastRan && Date.now() - lastRan >= limit) {
|
||
func.apply(this, args);
|
||
lastRan = Date.now();
|
||
}
|
||
}, Math.max(limit - sinceLastRan, 0));
|
||
}
|
||
}
|
||
};
|
||
};
|
||
|
||
// 简化的鼠标移动事件处理函数
|
||
const onMouseMove = throttle((event: MouseEvent) => {
|
||
if (!containerRef.current || !sceneRef.current || !geoProcessor) {
|
||
return;
|
||
}
|
||
|
||
// 获取鼠标在球面上的点
|
||
const result = getPointOnSphere(
|
||
event.clientX,
|
||
event.clientY,
|
||
camera,
|
||
2.01,
|
||
);
|
||
|
||
// 重置所有线条颜色
|
||
allLineObjects.forEach((line) => {
|
||
if (line.material instanceof LineBasicMaterial) {
|
||
line.material.color.set(line.userData.originalColor);
|
||
}
|
||
});
|
||
|
||
// 如果找到点和对应的国家/地区
|
||
if (result && result.countryName) {
|
||
// 高亮显示该国家/地区的线条
|
||
allLineObjects.forEach((line) => {
|
||
if (
|
||
lineToCountryMap.get(line) === result.countryName &&
|
||
line.material instanceof LineBasicMaterial
|
||
) {
|
||
line.material.color.set(line.userData.highlightColor);
|
||
}
|
||
});
|
||
|
||
// 更新悬停国家
|
||
if (result.countryName !== hoveredCountry) {
|
||
setHoveredCountry(result.countryName);
|
||
}
|
||
|
||
// 不禁用自动旋转，保持地球旋转
|
||
} else {
|
||
// 如果没有找到国家/地区，清除悬停状态
|
||
if (hoveredCountry) {
|
||
setHoveredCountry(null);
|
||
}
|
||
}
|
||
|
||
// 保存鼠标事件和位置
|
||
sceneRef.current.lastMouseEvent = event;
|
||
sceneRef.current.lastMouseX = event.clientX;
|
||
sceneRef.current.lastMouseY = event.clientY;
|
||
sceneRef.current.lastHoverTime = Date.now();
|
||
}, 100);
|
||
|
||
// 清除选择的函数
|
||
const clearSelection = () => {
|
||
// 恢复所有线条的原始颜色
|
||
allLineObjects.forEach((line) => {
|
||
if (line.material instanceof LineBasicMaterial) {
|
||
line.material.color.set(line.userData.originalColor);
|
||
}
|
||
});
|
||
|
||
setHoveredCountry(null);
|
||
if (sceneRef.current) {
|
||
sceneRef.current.lastClickedCountry = null;
|
||
sceneRef.current.lastHoverTime = null;
|
||
}
|
||
// 确保自动旋转始终开启
|
||
controls.autoRotate = true;
|
||
};
|
||
|
||
// 简化的鼠标点击事件处理函数
|
||
const onClick = (event: MouseEvent) => {
|
||
if (!containerRef.current || !sceneRef.current || !geoProcessor) {
|
||
return;
|
||
}
|
||
|
||
// 获取鼠标在球面上的点
|
||
const result = getPointOnSphere(
|
||
event.clientX,
|
||
event.clientY,
|
||
camera,
|
||
2.01,
|
||
);
|
||
|
||
// 如果找到点和对应的国家/地区
|
||
if (result && result.countryName) {
|
||
// 重置所有线条颜色
|
||
allLineObjects.forEach((line) => {
|
||
if (line.material instanceof LineBasicMaterial) {
|
||
line.material.color.set(line.userData.originalColor);
|
||
}
|
||
});
|
||
|
||
// 高亮显示该国家/地区的线条
|
||
allLineObjects.forEach((line) => {
|
||
if (
|
||
lineToCountryMap.get(line) === result.countryName &&
|
||
line.material instanceof LineBasicMaterial
|
||
) {
|
||
line.material.color.set(line.userData.highlightColor);
|
||
}
|
||
});
|
||
|
||
// 更新选中国家
|
||
setHoveredCountry(result.countryName);
|
||
sceneRef.current.lastClickedCountry = result.countryName;
|
||
// 不禁用自动旋转，保持地球始终旋转
|
||
} else {
|
||
// 如果没有找到国家/地区，清除选择
|
||
clearSelection();
|
||
}
|
||
|
||
// 更新最后的鼠标位置和点击时间
|
||
sceneRef.current.lastMouseX = event.clientX;
|
||
sceneRef.current.lastMouseY = event.clientY;
|
||
sceneRef.current.lastHoverTime = Date.now();
|
||
};
|
||
|
||
// 鼠标双击事件处理
|
||
const onDoubleClick = (event: MouseEvent) => {
|
||
clearSelection();
|
||
event.preventDefault();
|
||
event.stopPropagation();
|
||
};
|
||
|
||
// 添加事件监听器
|
||
containerRef.current.addEventListener("mousemove", onMouseMove, { passive: true });
|
||
containerRef.current.addEventListener("click", onClick, { passive: false });
|
||
containerRef.current.addEventListener("dblclick", onDoubleClick, { passive: false });
|
||
|
||
// 保存清理函数
|
||
cleanupFunctions.push(() => {
|
||
if (containerRef.current) {
|
||
containerRef.current.removeEventListener("mousemove", onMouseMove);
|
||
containerRef.current.removeEventListener("click", onClick);
|
||
containerRef.current.removeEventListener("dblclick", onDoubleClick);
|
||
}
|
||
});
|
||
|
||
// 获取球面上的点对应的国家/地区
|
||
const getPointOnSphere = (
|
||
mouseX: number,
|
||
mouseY: number,
|
||
camera: PerspectiveCamera,
|
||
radius: number,
|
||
): { point: Vector3, countryName: string | null } | null => {
|
||
// 计算鼠标在画布中的归一化坐标
|
||
const rect = containerRef.current!.getBoundingClientRect();
|
||
const x = ((mouseX - rect.left) / rect.width) * 2 - 1;
|
||
const y = -((mouseY - rect.top) / rect.height) * 2 + 1;
|
||
|
||
// 创建射线
|
||
const ray = new Raycaster();
|
||
ray.setFromCamera(new Vector2(x, y), camera);
|
||
|
||
// 检测射线与实际地球模型的相交
|
||
const earthIntersects = ray.intersectObject(earth, false);
|
||
if (earthIntersects.length > 0) {
|
||
const point = earthIntersects[0].point;
|
||
|
||
// 使用WASM查找最近的国家/地区
|
||
const countryName = geoProcessor.find_nearest_country(
|
||
point.x, point.y, point.z, radius
|
||
);
|
||
|
||
return { point, countryName };
|
||
}
|
||
|
||
// 如果没有直接相交，使用球体辅助检测
|
||
const sphereGeom = new SphereGeometry(radius, 32, 32);
|
||
const sphereMesh = new Mesh(sphereGeom);
|
||
|
||
const intersects = ray.intersectObject(sphereMesh);
|
||
if (intersects.length > 0) {
|
||
const point = intersects[0].point;
|
||
|
||
// 使用WASM查找最近的国家/地区
|
||
const countryName = geoProcessor.find_nearest_country(
|
||
point.x, point.y, point.z, radius
|
||
);
|
||
|
||
return { point, countryName };
|
||
}
|
||
|
||
return null;
|
||
};
|
||
|
||
// 优化的动画循环函数
|
||
const animate = () => {
|
||
if (!sceneRef.current) return;
|
||
|
||
// 使用requestIdleCallback（如果可用）或setTimeout来限制更新频率
|
||
// 这样可以减少CPU使用率和提高性能
|
||
const scheduleNextFrame = () => {
|
||
if (typeof window.requestIdleCallback === 'function') {
|
||
window.requestIdleCallback(() => {
|
||
if (sceneRef.current) {
|
||
sceneRef.current.animationId = requestAnimationFrame(animate);
|
||
}
|
||
}, { timeout: 100 });
|
||
} else {
|
||
setTimeout(() => {
|
||
if (sceneRef.current) {
|
||
sceneRef.current.animationId = requestAnimationFrame(animate);
|
||
}
|
||
}, 16); // 约60fps的更新频率
|
||
}
|
||
};
|
||
|
||
// 如果相机没有变化，可以降低渲染频率
|
||
if (sceneRef.current.controls &&
|
||
!sceneRef.current.controls.autoRotate &&
|
||
sceneRef.current.lastCameraPosition &&
|
||
sceneRef.current.camera.position.distanceTo(sceneRef.current.lastCameraPosition) < 0.001) {
|
||
// 相机位置没有明显变化，降低渲染频率
|
||
scheduleNextFrame();
|
||
return;
|
||
}
|
||
|
||
// 保存当前相机位置
|
||
sceneRef.current.lastCameraPosition = sceneRef.current.camera.position.clone();
|
||
|
||
// 更新控制器
|
||
controls.update();
|
||
|
||
// 渲染
|
||
renderer.render(scene, camera);
|
||
labelRenderer.render(scene, camera);
|
||
|
||
// 安排下一帧，使用优化的调度方式
|
||
scheduleNextFrame();
|
||
};
|
||
|
||
// 处理窗口大小变化
|
||
const handleResize = () => {
|
||
if (!containerRef.current || !sceneRef.current) return;
|
||
|
||
const width = containerRef.current.clientWidth;
|
||
const height = containerRef.current.clientHeight;
|
||
|
||
camera.aspect = width / height;
|
||
camera.updateProjectionMatrix();
|
||
renderer.setSize(width, height);
|
||
labelRenderer.setSize(width, height);
|
||
|
||
// 立即渲染一次
|
||
renderer.render(scene, camera);
|
||
labelRenderer.render(scene, camera);
|
||
};
|
||
|
||
window.addEventListener("resize", handleResize, { passive: true });
|
||
cleanupFunctions.push(() => {
|
||
window.removeEventListener("resize", handleResize);
|
||
});
|
||
|
||
// 保存场景引用
|
||
sceneRef.current = {
|
||
scene,
|
||
camera,
|
||
renderer,
|
||
labelRenderer,
|
||
controls,
|
||
earth,
|
||
countries,
|
||
raycaster,
|
||
mouse,
|
||
animationId: null,
|
||
lastCameraPosition: null,
|
||
lastMouseEvent: null,
|
||
lastClickedCountry: null,
|
||
lastMouseX: null,
|
||
lastMouseY: null,
|
||
lastHoverTime: null,
|
||
lineToCountryMap,
|
||
allLineObjects,
|
||
};
|
||
|
||
// 开始动画
|
||
sceneRef.current.animationId = requestAnimationFrame(animate);
|
||
|
||
} catch (error: any) {
|
||
console.error("Three.js初始化失败:", error);
|
||
const errorMessage = error instanceof Error ? error.message : String(error);
|
||
setMapError(`3D地图初始化失败: ${errorMessage}`);
|
||
}
|
||
};
|
||
|
||
// 执行初始化
|
||
initThreeScene();
|
||
|
||
// 清理函数
|
||
return () => {
|
||
mounted = false;
|
||
|
||
// 执行所有保存的清理函数
|
||
cleanupFunctions.forEach(fn => fn());
|
||
|
||
// 清理资源和事件监听器
|
||
if (sceneRef.current) {
|
||
// 取消动画帧
|
||
if (sceneRef.current.animationId !== null) {
|
||
cancelAnimationFrame(sceneRef.current.animationId);
|
||
}
|
||
|
||
// 处理渲染器的处理
|
||
sceneRef.current.renderer.dispose();
|
||
sceneRef.current.renderer.forceContextLoss();
|
||
sceneRef.current.renderer.domElement.remove();
|
||
|
||
// 移除标签渲染器
|
||
if (sceneRef.current.labelRenderer) {
|
||
sceneRef.current.labelRenderer.domElement.remove();
|
||
}
|
||
|
||
// 释放控制器
|
||
if (sceneRef.current.controls) {
|
||
sceneRef.current.controls.dispose();
|
||
}
|
||
}
|
||
};
|
||
}, [visitedPlaces, theme, wasmReady, geoProcessor]); // 添加geoProcessor依赖
|
||
|
||
return (
|
||
<div className="relative">
|
||
<div
|
||
ref={containerRef}
|
||
className="w-full h-[400px] sm:h-[450px] md:h-[500px] lg:h-[600px] xl:h-[700px]"
|
||
/>
|
||
|
||
{(wasmError || mapError) && (
|
||
<div className="absolute inset-0 flex items-center justify-center bg-white/80 dark:bg-gray-800/80 z-20">
|
||
<div className="bg-red-50 dark:bg-red-900 p-4 rounded-lg shadow-lg max-w-md">
|
||
<h3 className="text-red-700 dark:text-red-300 font-bold text-lg mb-2">地图加载错误</h3>
|
||
<p className="text-red-600 dark:text-red-400 text-sm">{wasmError || mapError}</p>
|
||
<button
|
||
className="mt-3 px-4 py-2 bg-red-600 text-white rounded hover:bg-red-700 transition-colors"
|
||
onClick={() => window.location.reload()}
|
||
>
|
||
重新加载
|
||
</button>
|
||
</div>
|
||
</div>
|
||
)}
|
||
|
||
{mapLoading && !mapError && (
|
||
<div className="absolute inset-0 flex items-center justify-center bg-white/80 dark:bg-gray-800/80 z-20">
|
||
<div className="text-center">
|
||
<div className="inline-block w-12 h-12 border-4 border-gray-300 dark:border-gray-600 border-t-blue-500 dark:border-t-blue-400 rounded-full animate-spin"></div>
|
||
<p className="mt-3 text-gray-700 dark:text-gray-300">加载地图数据中...</p>
|
||
</div>
|
||
</div>
|
||
)}
|
||
|
||
{hoveredCountry && (
|
||
<div className="absolute bottom-5 left-0 right-0 text-center z-10">
|
||
<div className="inline-block bg-white/95 dark:bg-gray-800/95 px-6 py-3 rounded-xl shadow-lg backdrop-blur-sm border border-gray-200 dark:border-gray-700 hover:scale-105">
|
||
<p className="text-gray-800 dark:text-white font-medium text-lg flex items-center justify-center gap-2">
|
||
{hoveredCountry}
|
||
{hoveredCountry && visitedPlaces.includes(hoveredCountry) ? (
|
||
<span className="inline-flex items-center justify-center bg-emerald-100 dark:bg-emerald-900/60 text-emerald-600 dark:text-emerald-400 px-2.5 py-1 rounded-full text-sm ml-1.5 whitespace-nowrap">
|
||
<svg
|
||
className="w-4 h-4 mr-1"
|
||
viewBox="0 0 20 20"
|
||
fill="currentColor"
|
||
>
|
||
<path
|
||
fillRule="evenodd"
|
||
d="M10 18a8 8 0 100-16 8 8 0 000 16zm3.707-9.293a1 1 0 00-1.414-1.414L9 10.586 7.707 9.293a1 1 0 00-1.414 1.414l2 2a1 1 0 001.414 0l4-4z"
|
||
clipRule="evenodd"
|
||
/>
|
||
</svg>
|
||
已去过
|
||
</span>
|
||
) : (
|
||
<span className="inline-flex items-center justify-center bg-gray-100 dark:bg-gray-700/60 text-gray-600 dark:text-gray-400 px-2.5 py-1 rounded-full text-sm ml-1.5 whitespace-nowrap">
|
||
尚未去过
|
||
</span>
|
||
)}
|
||
</p>
|
||
</div>
|
||
</div>
|
||
)}
|
||
</div>
|
||
);
|
||
};
|
||
|
||
export default WorldHeatmap;
|