1175 lines
34 KiB
TypeScript
1175 lines
34 KiB
TypeScript
import { useEffect, useRef, useState, useCallback } from 'react';
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import * as THREE from 'three';
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import { gsap } from 'gsap';
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import throttle from 'lodash/throttle';
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interface Particle {
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x: number;
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y: number;
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z: number;
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originalX: number;
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originalY: number;
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originalColor: THREE.Color;
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delay: number;
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}
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const particleLoadQueue = new Set<string>();
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let lastAnimationTime = 0;
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const ANIMATION_THRESHOLD = 300; // 300ms的阈值
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const MIN_DELAY = 100; // 最小延迟时间
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const createErrorParticles = (width: number, height: number) => {
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const particles: Particle[] = [];
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const positionArray: number[] = [];
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const colorArray: number[] = [];
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const errorColor = new THREE.Color(0.8, 0, 0);
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const size = Math.min(width, height);
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const scaleFactor = size * 0.35;
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const particlesPerLine = 50;
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// X 形状的两条线
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const lines = [
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// 左上到右下的线
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{ start: [-1, 1], end: [1, -1] },
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// 右上到左下的线
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{ start: [1, 1], end: [-1, -1] }
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];
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lines.forEach(line => {
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for (let i = 0; i < particlesPerLine; i++) {
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const t = i / (particlesPerLine - 1);
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const x = line.start[0] + (line.end[0] - line.start[0]) * t;
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const y = line.start[1] + (line.end[1] - line.start[1]) * t;
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// 添加一些随机偏移
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const randomOffset = 0.1;
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const randomX = x + (Math.random() - 0.5) * randomOffset;
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const randomY = y + (Math.random() - 0.5) * randomOffset;
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const scaledX = randomX * scaleFactor;
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const scaledY = randomY * scaleFactor;
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particles.push({
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x: scaledX,
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y: scaledY,
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z: 0,
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originalX: scaledX,
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originalY: scaledY,
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originalColor: errorColor,
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delay: 0
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});
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// 修改初始位置生成方式
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const angle = Math.random() * Math.PI * 2;
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const distance = size * 2;
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positionArray.push(
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Math.cos(angle) * distance,
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Math.sin(angle) * distance,
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0
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);
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// 初始颜色设置为最终颜色的一半亮度
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colorArray.push(errorColor.r * 0.5, errorColor.g * 0.5, errorColor.b * 0.5);
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}
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});
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const particleSize = Math.max(1.2, (size / 200) * 1.2);
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return { particles, positionArray, colorArray, particleSize };
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};
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// 修改 createSmileParticles 函数
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const createSmileParticles = (width: number, height: number) => {
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const particles: Particle[] = [];
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const positionArray: number[] = [];
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const colorArray: number[] = [];
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const size = Math.min(width, height);
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const scale = size / 200;
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const radius = size * 0.4;
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const particleSize = Math.max(1.2, scale * 1.2);
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const particleColor = new THREE.Color(0.8, 0.6, 0);
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// 预先计算所有需要的粒子位置
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const allPoints: { x: number; y: number }[] = [];
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// 计算脸部轮廓的点
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const outlinePoints = Math.floor(60 * scale);
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const offsetX = radius * 0.05; // 添加水平偏移
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const offsetY = radius * 0.05; // 添加垂直偏移
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for (let i = 0; i < outlinePoints; i++) {
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const angle = (i / outlinePoints) * Math.PI * 2;
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allPoints.push({
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x: Math.cos(angle) * radius + offsetX,
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y: Math.sin(angle) * radius + offsetY
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});
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}
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// 改眼睛的生成方式
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const eyeOffset = radius * 0.3;
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const eyeY = radius * 0.15 + offsetY;
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const eyeSize = radius * 0.1; // 稍微减小眼睛尺寸
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const eyePoints = Math.floor(20 * scale);
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[-1, 1].forEach(side => {
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// 使用同心圆的方式生成眼睛
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const eyeCenterX = side * eyeOffset + offsetX;
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const rings = 3; // 同心圆的数量
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for (let ring = 0; ring < rings; ring++) {
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const ringRadius = eyeSize * (1 - ring / rings); // 从外到内递减半径
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const pointsInRing = Math.floor(eyePoints / rings);
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for (let i = 0; i < pointsInRing; i++) {
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const angle = (i / pointsInRing) * Math.PI * 2;
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allPoints.push({
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x: eyeCenterX + Math.cos(angle) * ringRadius,
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y: eyeY + Math.sin(angle) * ringRadius
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});
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}
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}
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// 添加中心点
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allPoints.push({
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x: eyeCenterX,
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y: eyeY
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});
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});
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// 计算嘴巴的点
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const smileWidth = radius * 0.6;
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const smileY = -radius * 0.35 + offsetY;
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const smilePoints = Math.floor(25 * scale);
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for (let i = 0; i < smilePoints; i++) {
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const t = i / (smilePoints - 1);
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const x = (t * 2 - 1) * smileWidth + offsetX;
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const y = smileY + Math.pow(x / smileWidth, 2) * radius * 0.2 + offsetY;
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allPoints.push({ x, y });
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}
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// 为所有点创建粒子
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allPoints.forEach(point => {
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particles.push({
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x: point.x,
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y: point.y,
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z: 0,
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originalX: point.x,
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originalY: point.y,
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originalColor: particleColor,
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delay: 0
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});
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// 生成初始位置（从外围圆形区域开始）
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const initAngle = Math.random() * Math.PI * 2;
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const distance = size * 2;
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positionArray.push(
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Math.cos(initAngle) * distance,
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Math.sin(initAngle) * distance,
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0
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);
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// 初始颜色设置为最终颜色的一半亮度
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colorArray.push(
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particleColor.r * 0.5,
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particleColor.g * 0.5,
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particleColor.b * 0.5
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);
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});
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return { particles, positionArray, colorArray, particleSize };
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};
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// 在文件开头添加新的 helper 函数
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const easeOutCubic = (t: number) => {
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return 1 - Math.pow(1 - t, 3);
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};
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const customEase = (t: number) => {
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return t < 0.5
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? 4 * t * t * t
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: 1 - Math.pow(-2 * t + 2, 3) / 2;
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};
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// 在文件开头添加新的 LoaderStatus 接口
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interface LoaderStatus {
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isLoading: boolean;
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hasError: boolean;
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timeoutError: boolean;
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}
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// 修改 ParticleImage 组件的 props 接口
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interface ParticleImageProps {
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src?: string;
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status?: LoaderStatus;
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onLoad?: () => void;
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onAnimationComplete?: () => void;
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}
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// 修改 BG_CONFIG，添加尺寸配置
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const BG_CONFIG = {
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colors: {
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from: 'rgb(10,37,77)',
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via: 'rgb(8,27,57)',
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to: 'rgb(2,8,23)'
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},
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className: 'bg-gradient-to-br from-[rgb(248,250,252)] via-[rgb(241,245,249)] to-[rgb(236,241,247)] dark:from-[rgb(10,37,77)] dark:via-[rgb(8,27,57)] dark:to-[rgb(2,8,23)]'
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};
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// 修改采样率和粒子大小计算函数
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const getOptimalImageParams = (width: number, height: number) => {
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const totalPixels = width * height;
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const pixelRatio = window.devicePixelRatio || 1;
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const isMobile = window.innerWidth <= 768;
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// 移动端使用更大的采样间隔来减少数量
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let samplingGap = isMobile
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? Math.ceil(Math.max(width, height) / 60) // 移动端降低采样密度
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: Math.ceil(Math.max(width, height) / 120); // 桌面端保持较高采密度
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// 限制最小采样间隔，避免粒子过多
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samplingGap = Math.max(samplingGap, isMobile ? 4 : 2);
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// 计算粒子大小
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const size = Math.min(width, height);
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const scale = size / 200;
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// 移动端适当增大粒子以保持视觉效果
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const particleSize = isMobile
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? Math.max(2, scale * 2.2)
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: Math.max(1.5, scale * (1.8 / pixelRatio));
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return {
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samplingGap,
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particleSize,
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// 移动端使用较短的动画时间减少性能开销
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animationDuration: isMobile ? 0.6 : 0.8,
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// 移动端减少延迟时间，使动画更快完成
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delayMultiplier: isMobile ? 0.3 : 0.6
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};
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};
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// 添加资源清理函数
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const cleanupResources = (scene: THREE.Scene) => {
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scene.traverse((object) => {
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if (object instanceof THREE.Points) {
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const geometry = object.geometry;
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const material = object.material as THREE.PointsMaterial;
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// 清空几何体缓冲区
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if (geometry.attributes.position) {
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geometry.attributes.position.array = new Float32Array(0);
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}
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if (geometry.attributes.color) {
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geometry.attributes.color.array = new Float32Array(0);
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}
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geometry.dispose();
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material.dispose();
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// 移除所有属性
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geometry.deleteAttribute('position');
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geometry.deleteAttribute('color');
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}
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});
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scene.clear();
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};
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export const ParticleImage = ({
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src,
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status,
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onLoad,
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onAnimationComplete
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}: ParticleImageProps) => {
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const containerRef = useRef<HTMLDivElement>(null);
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const sceneRef = useRef<THREE.Scene>();
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const cameraRef = useRef<THREE.OrthographicCamera>();
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const rendererRef = useRef<THREE.WebGLRenderer>();
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const animationFrameRef = useRef<number>();
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const animationTimeoutRef = useRef<NodeJS.Timeout>();
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const isAnimatingRef = useRef(false); // 添加动画状态控制
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// 添加一个 ref 来追踪组件的挂载状态
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const isMountedRef = useRef(true);
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// 修改动画控制函数
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const startAnimation = useCallback((
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positionAttribute: THREE.BufferAttribute,
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particles: Particle[],
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width: number,
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height: number
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) => {
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if (isAnimatingRef.current) return;
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isAnimatingRef.current = true;
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const { animationDuration, delayMultiplier } = getOptimalImageParams(width, height);
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const animations: gsap.core.Tween[] = [];
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// 获取当前场景中的 Points 对象
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const points = sceneRef.current?.children[0] as THREE.Points;
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if (!points) return;
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const material = points.material as THREE.PointsMaterial;
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// 添加材质透明度动画
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const materialTween = gsap.to(material, {
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opacity: 1,
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duration: 0.3,
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ease: "power2.out"
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});
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animations.push(materialTween);
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particles.forEach((particle, i) => {
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const i3 = i * 3;
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const distanceToCenter = Math.sqrt(
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Math.pow(particle.originalX, 2) +
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Math.pow(particle.originalY, 2)
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);
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const maxDistance = Math.sqrt(Math.pow(width/2, 2) + Math.pow(height/2, 2));
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const normalizedDistance = distanceToCenter / maxDistance;
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const tween = gsap.to(positionAttribute.array, {
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duration: animationDuration,
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delay: normalizedDistance * delayMultiplier,
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[i3]: particle.originalX,
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[i3 + 1]: particle.originalY,
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[i3 + 2]: 0,
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ease: "power2.inOut",
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onUpdate: () => {
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positionAttribute.needsUpdate = true;
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}
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});
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animations.push(tween);
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});
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if (animationTimeoutRef.current) {
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clearTimeout(animationTimeoutRef.current);
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}
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const maxDelay = Math.max(...animations.map(tween => tween.delay() || 0));
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// 在动画即将结束时开始淡出粒子
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const fadeOutDelay = (maxDelay + animationDuration) * 1000 - 200;
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setTimeout(() => {
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gsap.to(material, {
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opacity: 0,
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duration: 0.3,
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ease: "power2.in"
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});
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}, fadeOutDelay);
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// 确保在粒子完全消失后才触发完成回调
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animationTimeoutRef.current = setTimeout(() => {
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requestAnimationFrame(() => {
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isAnimatingRef.current = false;
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if (onAnimationComplete) {
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onAnimationComplete();
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}
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});
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}, fadeOutDelay + 300);
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}, [onAnimationComplete]);
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// 修改清理函数
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const cleanup = useCallback(() => {
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if (!isMountedRef.current) return;
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// 清理动画状态
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isAnimatingRef.current = false;
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// 清理超时
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if (animationTimeoutRef.current) {
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clearTimeout(animationTimeoutRef.current);
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}
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// 取消动画帧
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if (animationFrameRef.current) {
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cancelAnimationFrame(animationFrameRef.current);
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animationFrameRef.current = undefined;
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}
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// 清理 GSAP 动画
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gsap.killTweensOf('*');
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// 清理场景资源
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if (sceneRef.current) {
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// 遍历场景中的所有对象
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sceneRef.current.traverse((object) => {
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if (object instanceof THREE.Points) {
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const geometry = object.geometry;
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const material = object.material as THREE.PointsMaterial;
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// 清理几何体
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if (geometry) {
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// 清空缓冲区数据
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if (geometry.attributes.position) {
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geometry.attributes.position.array = new Float32Array(0);
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}
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if (geometry.attributes.color) {
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geometry.attributes.color.array = new Float32Array(0);
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}
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// 移除所有属性
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geometry.deleteAttribute('position');
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geometry.deleteAttribute('color');
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geometry.dispose();
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}
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// 清理材质
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if (material) {
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material.dispose();
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}
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}
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});
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// 清空场景
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while(sceneRef.current.children.length > 0) {
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sceneRef.current.remove(sceneRef.current.children[0]);
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}
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}
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// 修改渲染器清理逻辑
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if (rendererRef.current) {
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const renderer = rendererRef.current;
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// 确保在移除 DOM 元素前停止渲染
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renderer.setAnimationLoop(null);
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// 清理渲染器上下文
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renderer.dispose();
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renderer.forceContextLoss();
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// 安全地移除 DOM 元素
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const domElement = renderer.domElement;
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if (containerRef.current?.contains(domElement)) {
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requestAnimationFrame(() => {
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if (isMountedRef.current && containerRef.current?.contains(domElement)) {
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try {
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containerRef.current.removeChild(domElement);
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} catch (e) {
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console.warn('清理渲染器DOM元素失败:', e);
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}
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}
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});
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}
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// 清空引用
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rendererRef.current = undefined;
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}
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// 清理相机引用
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if (cameraRef.current) {
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cameraRef.current = undefined;
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}
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}, []);
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// 修改 useEffect 的清理
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useEffect(() => {
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return () => {
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cleanup();
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};
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}, [cleanup]);
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// 修改 updateParticles 函数
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const updateParticles = useCallback((width: number, height: number) => {
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if (!sceneRef.current || isAnimatingRef.current || !isMountedRef.current) return;
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cleanup();
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if (!isMountedRef.current) return;
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const { particles, positionArray, colorArray, particleSize } = createSmileParticles(width, height);
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const geometry = new THREE.BufferGeometry();
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const material = new THREE.PointsMaterial({
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size: particleSize,
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vertexColors: true,
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transparent: true,
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opacity: 1,
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sizeAttenuation: true,
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blending: THREE.AdditiveBlending,
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depthWrite: false,
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depthTest: false
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});
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geometry.setAttribute('position', new THREE.Float32BufferAttribute(positionArray, 3));
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geometry.setAttribute('color', new THREE.Float32BufferAttribute(colorArray, 3));
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const points = new THREE.Points(geometry, material);
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sceneRef.current.add(points);
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const positionAttribute = geometry.attributes.position as THREE.BufferAttribute;
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startAnimation(positionAttribute, particles, width, height);
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}, [cleanup, startAnimation]);
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// 将 resize 处理逻辑移到组件顶层
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||
const handleResize = useCallback(() => {
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if (!containerRef.current || !cameraRef.current || !rendererRef.current ||
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!sceneRef.current || !isMountedRef.current) return;
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const width = containerRef.current.offsetWidth;
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const height = containerRef.current.offsetHeight;
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// 更新相机视图
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||
const camera = cameraRef.current;
|
||
camera.left = width / -2;
|
||
camera.right = width / 2;
|
||
camera.top = height / 2;
|
||
camera.bottom = height / -2;
|
||
camera.updateProjectionMatrix();
|
||
|
||
// 更新渲染器大小
|
||
rendererRef.current.setSize(width, height);
|
||
|
||
// 只在尺寸显著变化时重新生成粒子
|
||
const currentSize = Math.min(width, height);
|
||
const previousSize = sceneRef.current.userData.previousSize || currentSize;
|
||
const sizeChange = Math.abs(currentSize - previousSize) / previousSize;
|
||
|
||
if (sizeChange > 0.2 && src === '') {
|
||
if (sceneRef.current) {
|
||
cleanupResources(sceneRef.current);
|
||
}
|
||
sceneRef.current.userData.previousSize = currentSize;
|
||
updateParticles(width, height);
|
||
}
|
||
}, [src, updateParticles]);
|
||
|
||
// 主要的 useEffect
|
||
useEffect(() => {
|
||
isMountedRef.current = true;
|
||
|
||
if (!containerRef.current) return;
|
||
|
||
const width = containerRef.current.offsetWidth;
|
||
const height = containerRef.current.offsetHeight;
|
||
|
||
const scene = new THREE.Scene();
|
||
sceneRef.current = scene;
|
||
|
||
const camera = new THREE.OrthographicCamera(
|
||
width / -2,
|
||
width / 2,
|
||
height / 2,
|
||
height / -2,
|
||
1,
|
||
1000
|
||
);
|
||
camera.position.z = 500;
|
||
camera.lookAt(new THREE.Vector3(0, 0, 0));
|
||
cameraRef.current = camera;
|
||
|
||
const renderer = new THREE.WebGLRenderer({
|
||
alpha: true,
|
||
antialias: window.innerWidth > 768,
|
||
powerPreference: 'low-power'
|
||
});
|
||
renderer.setPixelRatio(Math.min(
|
||
window.devicePixelRatio,
|
||
window.innerWidth <= 768 ? 2 : 3
|
||
));
|
||
renderer.setSize(width, height);
|
||
rendererRef.current = renderer;
|
||
|
||
// 确保容器仍然存在再添加渲染器
|
||
if (containerRef.current && isMountedRef.current) {
|
||
containerRef.current.appendChild(renderer.domElement);
|
||
}
|
||
|
||
// 检查是否应该显示笑
|
||
if (src === '') {
|
||
const { particles, positionArray, colorArray, particleSize } = createSmileParticles(width, height);
|
||
|
||
const material = new THREE.PointsMaterial({
|
||
size: particleSize,
|
||
vertexColors: true,
|
||
transparent: true,
|
||
opacity: 1,
|
||
sizeAttenuation: true,
|
||
blending: THREE.AdditiveBlending,
|
||
depthWrite: false,
|
||
depthTest: false
|
||
});
|
||
|
||
const geometry = new THREE.BufferGeometry();
|
||
geometry.setAttribute('position', new THREE.Float32BufferAttribute(positionArray, 3));
|
||
geometry.setAttribute('color', new THREE.Float32BufferAttribute(colorArray, 3));
|
||
|
||
const points = new THREE.Points(geometry, material);
|
||
scene.add(points);
|
||
|
||
// 修改动画效果
|
||
const positionAttribute = geometry.attributes.position;
|
||
|
||
// 算到中心的距离用于延迟
|
||
particles.forEach((particle, i) => {
|
||
const i3 = i * 3;
|
||
const distanceToCenter = Math.sqrt(
|
||
Math.pow(particle.originalX, 2) +
|
||
Math.pow(particle.originalY, 2)
|
||
);
|
||
const maxDistance = Math.sqrt(Math.pow(width/2, 2) + Math.pow(height/2, 2));
|
||
const normalizedDistance = distanceToCenter / maxDistance;
|
||
|
||
gsap.to(positionAttribute.array, {
|
||
duration: 0.8,
|
||
delay: normalizedDistance * 0.6,
|
||
[i3]: particle.originalX,
|
||
[i3 + 1]: particle.originalY,
|
||
[i3 + 2]: 0,
|
||
ease: "sine.inOut",
|
||
onUpdate: () => {
|
||
positionAttribute.needsUpdate = true;
|
||
}
|
||
});
|
||
});
|
||
|
||
// 启动动画循环
|
||
const animate = () => {
|
||
if (renderer && scene && camera) {
|
||
renderer.render(scene, camera);
|
||
}
|
||
animationFrameRef.current = requestAnimationFrame(animate);
|
||
};
|
||
animate();
|
||
|
||
// 设置 resize 监听
|
||
const throttledResize = throttle(handleResize, 200, {
|
||
leading: true,
|
||
trailing: true
|
||
});
|
||
|
||
const resizeObserver = new ResizeObserver(throttledResize);
|
||
resizeObserver.observe(containerRef.current);
|
||
window.addEventListener('resize', throttledResize);
|
||
|
||
return () => {
|
||
throttledResize.cancel();
|
||
if (containerRef.current) {
|
||
resizeObserver.unobserve(containerRef.current);
|
||
}
|
||
window.removeEventListener('resize', throttledResize);
|
||
if (animationFrameRef.current) {
|
||
cancelAnimationFrame(animationFrameRef.current);
|
||
}
|
||
if (rendererRef.current && containerRef.current) {
|
||
containerRef.current.removeChild(rendererRef.current.domElement);
|
||
rendererRef.current.dispose();
|
||
}
|
||
gsap.killTweensOf('*');
|
||
};
|
||
}
|
||
|
||
// 建错误函数
|
||
const showErrorAnimation = () => {
|
||
if (!scene) return;
|
||
|
||
const { particles, positionArray, colorArray, particleSize } = createErrorParticles(width, height);
|
||
|
||
const material = new THREE.PointsMaterial({
|
||
size: particleSize,
|
||
vertexColors: true,
|
||
transparent: true,
|
||
opacity: 1,
|
||
sizeAttenuation: true,
|
||
blending: THREE.AdditiveBlending,
|
||
depthWrite: false,
|
||
depthTest: false
|
||
});
|
||
|
||
const geometry = new THREE.BufferGeometry();
|
||
geometry.setAttribute('position', new THREE.Float32BufferAttribute(positionArray, 3));
|
||
geometry.setAttribute('color', new THREE.Float32BufferAttribute(colorArray, 3));
|
||
|
||
const points = new THREE.Points(geometry, material);
|
||
scene.clear();
|
||
scene.add(points);
|
||
|
||
const positionAttribute = geometry.attributes.position;
|
||
|
||
particles.forEach((particle, i) => {
|
||
const i3 = i * 3;
|
||
gsap.to(positionAttribute.array, {
|
||
duration: 0.6,
|
||
delay: Math.random() * 0.2,
|
||
[i3]: particle.originalX,
|
||
[i3 + 1]: particle.originalY,
|
||
[i3 + 2]: 0,
|
||
ease: "back.out(1.7)",
|
||
onUpdate: () => {
|
||
positionAttribute.needsUpdate = true;
|
||
}
|
||
});
|
||
});
|
||
};
|
||
|
||
// 加载图
|
||
const img = new Image();
|
||
img.crossOrigin = 'anonymous';
|
||
|
||
const timeoutId = setTimeout(() => {
|
||
showErrorAnimation();
|
||
}, 5000); // 5秒超时
|
||
|
||
img.onload = () => {
|
||
clearTimeout(timeoutId);
|
||
|
||
const canvas = document.createElement('canvas');
|
||
const ctx = canvas.getContext('2d');
|
||
|
||
if (ctx) {
|
||
// 增加一个小的边距以确保完全覆盖
|
||
const padding = 2; // 添加2像素的内边距
|
||
canvas.width = width + padding * 2;
|
||
canvas.height = height + padding * 2;
|
||
|
||
const targetAspect = width / height;
|
||
const imgAspect = img.width / img.height;
|
||
|
||
let sourceWidth = img.width;
|
||
let sourceHeight = img.height;
|
||
let sourceX = 0;
|
||
let sourceY = 0;
|
||
|
||
if (imgAspect > targetAspect) {
|
||
sourceWidth = img.height * targetAspect;
|
||
sourceX = (img.width - sourceWidth) / 2;
|
||
} else {
|
||
sourceHeight = img.width / targetAspect;
|
||
sourceY = (img.height - sourceHeight) / 2;
|
||
}
|
||
|
||
// 绘制时考虑padding
|
||
ctx.drawImage(
|
||
img,
|
||
sourceX, sourceY, sourceWidth, sourceHeight,
|
||
padding, padding, width, height
|
||
);
|
||
|
||
// 采样时也要考虑padding
|
||
const imageData = ctx.getImageData(padding, padding, width, height);
|
||
|
||
const particles: Particle[] = [];
|
||
const positionArray = [];
|
||
const colorArray = [];
|
||
const samplingGap = Math.ceil(Math.max(width, height) / 80);
|
||
|
||
// 采样裁剪的图片像素
|
||
for (let y = 0; y < height; y += samplingGap) {
|
||
for (let x = 0; x < width; x += samplingGap) {
|
||
const i = (y * width + x) * 4;
|
||
const r = imageData.data[i] / 255;
|
||
const g = imageData.data[i + 1] / 255;
|
||
const b = imageData.data[i + 2] / 255;
|
||
const a = imageData.data[i + 3] / 255;
|
||
|
||
if (a > 0.3) {
|
||
const distanceToCenter = Math.sqrt(
|
||
Math.pow(x - width/2, 2) +
|
||
Math.pow(y - height/2, 2)
|
||
);
|
||
const maxDistance = Math.sqrt(Math.pow(width/2, 2) + Math.pow(height/2, 2));
|
||
const normalizedDistance = distanceToCenter / maxDistance;
|
||
|
||
const px = x - width / 2;
|
||
const py = height / 2 - y;
|
||
|
||
particles.push({
|
||
x: px,
|
||
y: py,
|
||
z: 0,
|
||
originalX: px,
|
||
originalY: py,
|
||
originalColor: new THREE.Color(r, g, b),
|
||
delay: normalizedDistance * 0.3
|
||
});
|
||
|
||
// 随机初始位置（根据距离调整范围）
|
||
const spread = 1 - normalizedDistance * 0.5; // 距离越远，始扩散越小
|
||
positionArray.push(
|
||
(Math.random() - 0.5) * width * spread,
|
||
(Math.random() - 0.5) * height * spread,
|
||
(Math.random() - 0.5) * 50 * spread
|
||
);
|
||
|
||
colorArray.push(r, g, b);
|
||
}
|
||
}
|
||
}
|
||
const size = Math.min(width, height);
|
||
const scale = size / 200;
|
||
const particleSize = Math.max(1.2, scale * 1.2);
|
||
|
||
const geometry = new THREE.BufferGeometry();
|
||
const material = new THREE.PointsMaterial({
|
||
size: particleSize,
|
||
vertexColors: true,
|
||
transparent: true,
|
||
opacity: 1,
|
||
sizeAttenuation: true,
|
||
blending: THREE.AdditiveBlending,
|
||
depthWrite: false,
|
||
depthTest: false
|
||
});
|
||
|
||
|
||
scene.clear();
|
||
geometry.setAttribute('position', new THREE.Float32BufferAttribute(positionArray, 3));
|
||
geometry.setAttribute('color', new THREE.Float32BufferAttribute(colorArray, 3));
|
||
|
||
const points = new THREE.Points(geometry, material);
|
||
scene.add(points);
|
||
|
||
// 画
|
||
const positionAttribute = geometry.attributes.position;
|
||
const colorAttribute = geometry.attributes.color;
|
||
|
||
let completedAnimations = 0;
|
||
const totalAnimations = particles.length * 2; // 置和颜色动画
|
||
|
||
const checkComplete = () => {
|
||
completedAnimations++;
|
||
if (completedAnimations === totalAnimations) {
|
||
onLoad?.();
|
||
onAnimationComplete?.();
|
||
}
|
||
};
|
||
|
||
particles.forEach((particle, i) => {
|
||
const i3 = i * 3;
|
||
|
||
// 位置动画
|
||
gsap.to(positionAttribute.array, {
|
||
duration: 1.2 + Math.random() * 0.3,
|
||
delay: particle.delay,
|
||
[i3]: particle.originalX,
|
||
[i3 + 1]: particle.originalY,
|
||
[i3 + 2]: 0,
|
||
ease: customEase,
|
||
onUpdate: () => {
|
||
positionAttribute.needsUpdate = true;
|
||
},
|
||
onComplete: checkComplete
|
||
});
|
||
|
||
// 色动画
|
||
gsap.to(colorAttribute.array, {
|
||
duration: 1,
|
||
delay: particle.delay + 0.2,
|
||
[i3]: particle.originalColor.r,
|
||
[i3 + 1]: particle.originalColor.g,
|
||
[i3 + 2]: particle.originalColor.b,
|
||
ease: "power2.inOut",
|
||
onUpdate: () => {
|
||
colorAttribute.needsUpdate = true;
|
||
},
|
||
onComplete: checkComplete
|
||
});
|
||
});
|
||
|
||
// 修改动画序列部分
|
||
const timeline = gsap.timeline({
|
||
defaults: { ease: "power2.inOut" }
|
||
});
|
||
|
||
const imgElement = document.querySelector(`img[src="${src}"]`) as HTMLImageElement;
|
||
if (imgElement) {
|
||
// 设置初始状态
|
||
gsap.set(imgElement, { opacity: 0 });
|
||
|
||
timeline
|
||
.to(imgElement, {
|
||
opacity: 1,
|
||
duration: 0.8,
|
||
delay: 1.6
|
||
})
|
||
.to(material, {
|
||
opacity: 0,
|
||
duration: 0.8
|
||
}, "-=0.6"); // 提前开始消失
|
||
}
|
||
|
||
return { particles, positionArray, colorArray, particleSize };
|
||
}
|
||
};
|
||
|
||
img.onerror = () => {
|
||
clearTimeout(timeoutId);
|
||
showErrorAnimation();
|
||
};
|
||
|
||
img.src = src || '';
|
||
|
||
// 画循环
|
||
const animate = () => {
|
||
if (renderer && scene && camera) {
|
||
renderer.render(scene, camera);
|
||
}
|
||
animationFrameRef.current = requestAnimationFrame(animate);
|
||
};
|
||
animate();
|
||
|
||
// 添加 resize 监听
|
||
const resizeObserver = new ResizeObserver(handleResize);
|
||
resizeObserver.observe(containerRef.current);
|
||
|
||
// 添加窗口 resize 监听
|
||
window.addEventListener('resize', handleResize);
|
||
|
||
return () => {
|
||
clearTimeout(timeoutId);
|
||
if (animationFrameRef.current) {
|
||
cancelAnimationFrame(animationFrameRef.current);
|
||
}
|
||
if (renderer && containerRef.current) {
|
||
containerRef.current.removeChild(renderer.domElement);
|
||
renderer.dispose();
|
||
}
|
||
// 清所有 GSAP 动画
|
||
gsap.killTweensOf('*');
|
||
|
||
// 移除 resize 监听
|
||
if (containerRef.current) {
|
||
resizeObserver.unobserve(containerRef.current);
|
||
}
|
||
window.removeEventListener('resize', handleResize);
|
||
};
|
||
}, [cleanup, src, handleResize, onLoad, onAnimationComplete]);
|
||
|
||
return <div ref={containerRef} className="w-full h-full" />;
|
||
};
|
||
|
||
// 图片加载组件
|
||
export const ImageLoader = ({
|
||
src,
|
||
alt,
|
||
className
|
||
}: {
|
||
src?: string;
|
||
alt: string;
|
||
className: string;
|
||
}) => {
|
||
const [status, setStatus] = useState<LoaderStatus>({
|
||
isLoading: true,
|
||
hasError: false,
|
||
timeoutError: false
|
||
});
|
||
const [showImage, setShowImage] = useState(false);
|
||
const timeoutRef = useRef<NodeJS.Timeout>();
|
||
const loadingRef = useRef(false);
|
||
const imageRef = useRef<HTMLImageElement | null>(null);
|
||
const containerRef = useRef<HTMLDivElement>(null);
|
||
const [animationComplete, setAnimationComplete] = useState(false);
|
||
|
||
// 处理图片预加载
|
||
const preloadImage = useCallback(() => {
|
||
if (!src || loadingRef.current) return;
|
||
|
||
loadingRef.current = true;
|
||
|
||
// 清理之前的资源
|
||
if (imageRef.current) {
|
||
imageRef.current.src = '';
|
||
imageRef.current = null;
|
||
}
|
||
|
||
if (timeoutRef.current) {
|
||
clearTimeout(timeoutRef.current);
|
||
}
|
||
|
||
setStatus({
|
||
isLoading: true,
|
||
hasError: false,
|
||
timeoutError: false
|
||
});
|
||
setShowImage(false);
|
||
|
||
const img = new Image();
|
||
img.crossOrigin = 'anonymous';
|
||
|
||
img.onload = () => {
|
||
if (timeoutRef.current) {
|
||
clearTimeout(timeoutRef.current);
|
||
}
|
||
|
||
// 在图片加载成功后，立即创建和缓存一个适应容器大小的图片
|
||
if (containerRef.current) {
|
||
const canvas = document.createElement('canvas');
|
||
const ctx = canvas.getContext('2d');
|
||
|
||
if (ctx) {
|
||
const containerWidth = containerRef.current.offsetWidth;
|
||
const containerHeight = containerRef.current.offsetHeight;
|
||
|
||
canvas.width = containerWidth;
|
||
canvas.height = containerHeight;
|
||
|
||
// 保持比例绘制图片
|
||
const targetAspect = containerWidth / containerHeight;
|
||
const imgAspect = img.width / img.height;
|
||
|
||
let sourceWidth = img.width;
|
||
let sourceHeight = img.height;
|
||
let sourceX = 0;
|
||
let sourceY = 0;
|
||
|
||
if (imgAspect > targetAspect) {
|
||
sourceWidth = img.height * targetAspect;
|
||
sourceX = (img.width - sourceWidth) / 2;
|
||
} else {
|
||
sourceHeight = img.width / targetAspect;
|
||
sourceY = (img.height - sourceHeight) / 2;
|
||
}
|
||
|
||
ctx.drawImage(
|
||
img,
|
||
sourceX, sourceY, sourceWidth, sourceHeight,
|
||
0, 0, containerWidth, containerHeight
|
||
);
|
||
|
||
// 创建新的图片对象，使用调整后的canvas数据
|
||
const adjustedImage = new Image();
|
||
adjustedImage.src = canvas.toDataURL();
|
||
imageRef.current = adjustedImage;
|
||
}
|
||
} else {
|
||
imageRef.current = img;
|
||
}
|
||
|
||
loadingRef.current = false;
|
||
setStatus({
|
||
isLoading: false,
|
||
hasError: false,
|
||
timeoutError: false
|
||
});
|
||
};
|
||
|
||
img.onerror = () => {
|
||
if (timeoutRef.current) {
|
||
clearTimeout(timeoutRef.current);
|
||
}
|
||
loadingRef.current = false;
|
||
setStatus({
|
||
isLoading: false,
|
||
hasError: true,
|
||
timeoutError: false
|
||
});
|
||
};
|
||
|
||
// 确保src存在再设置
|
||
if (src) {
|
||
img.src = src;
|
||
}
|
||
}, [src]);
|
||
|
||
useEffect(() => {
|
||
preloadImage();
|
||
|
||
return () => {
|
||
loadingRef.current = false;
|
||
if (timeoutRef.current) {
|
||
clearTimeout(timeoutRef.current);
|
||
}
|
||
};
|
||
}, [src, preloadImage]);
|
||
|
||
// 添加一个新的状来控制粒子动画
|
||
const [canShowParticles, setCanShowParticles] = useState(false);
|
||
|
||
useEffect(() => {
|
||
if (!src) return;
|
||
|
||
// 重置状
|
||
setShowImage(false);
|
||
setAnimationComplete(false);
|
||
setCanShowParticles(false);
|
||
|
||
const now = Date.now();
|
||
const timeSinceLastAnimation = now - lastAnimationTime;
|
||
|
||
if (particleLoadQueue.size === 0) {
|
||
particleLoadQueue.add(src);
|
||
setCanShowParticles(true);
|
||
lastAnimationTime = now;
|
||
return;
|
||
}
|
||
|
||
const delay = Math.max(
|
||
MIN_DELAY,
|
||
Math.min(ANIMATION_THRESHOLD, timeSinceLastAnimation)
|
||
);
|
||
|
||
const timer = setTimeout(() => {
|
||
particleLoadQueue.add(src);
|
||
setCanShowParticles(true);
|
||
lastAnimationTime = Date.now();
|
||
}, delay);
|
||
|
||
return () => {
|
||
clearTimeout(timer);
|
||
particleLoadQueue.delete(src);
|
||
};
|
||
}, [src]);
|
||
|
||
return (
|
||
<div className="relative w-full h-full overflow-hidden">
|
||
<div className={`absolute inset-0 ${BG_CONFIG.className} rounded-lg overflow-hidden`}>
|
||
{(!src || (!animationComplete && canShowParticles)) && (
|
||
<ParticleImage
|
||
src={src}
|
||
status={status}
|
||
onLoad={() => {
|
||
if (imageRef.current) {
|
||
// 保持为空
|
||
}
|
||
}}
|
||
onAnimationComplete={() => {
|
||
if (imageRef.current && src) {
|
||
// 先显示图片，保持透明
|
||
setShowImage(true);
|
||
|
||
// 等待一帧确保图片已经渲染
|
||
requestAnimationFrame(() => {
|
||
// 标记动画完成，触发粒子消失
|
||
setAnimationComplete(true);
|
||
particleLoadQueue.delete(src);
|
||
|
||
// 给图一个短暂延迟再开始淡入
|
||
setTimeout(() => {
|
||
const img = document.querySelector(`img[src="${imageRef.current?.src}"]`) as HTMLImageElement;
|
||
if (img) {
|
||
img.style.opacity = '1';
|
||
}
|
||
}, 50);
|
||
});
|
||
}
|
||
}}
|
||
/>
|
||
)}
|
||
</div>
|
||
{!status.hasError && !status.timeoutError && imageRef.current && (
|
||
<div className="absolute inset-0 rounded-lg overflow-hidden">
|
||
<img
|
||
src={imageRef.current.src}
|
||
alt={alt}
|
||
className={`
|
||
w-full h-full object-cover
|
||
${className}
|
||
`}
|
||
style={{
|
||
opacity: 0,
|
||
visibility: showImage ? 'visible' : 'hidden',
|
||
objectFit: 'cover',
|
||
objectPosition: 'center',
|
||
willChange: 'opacity, transform',
|
||
transition: 'opacity 0.5s ease-in-out',
|
||
transform: 'scale(1.015)', // 增加缩放比例到 1.015
|
||
transformOrigin: 'center bottom', // 从底部中心开始缩放
|
||
}}
|
||
/>
|
||
</div>
|
||
)}
|
||
</div>
|
||
);
|
||
}; |