【前端】弹球特效(重力模拟)
创始人
2025-01-08 18:05:53
0

在这里插入图片描述
在这里插入图片描述

弹球特效

文章目录

    • 弹球特效

请添加图片描述

import React, { useRef, useEffect } from 'react';  const BouncingBallSimulation = () => {   const canvasRef = useRef(null);    useEffect(() => {     const canvas = canvasRef.current;     const ctx = canvas.getContext('2d');     let animationFrameId;      // Set canvas size     canvas.width = 900;     canvas.height = 1600;      // Circle properties     const centerX = canvas.width / 2;     const centerY = canvas.height / 2;     const radius = Math.min(centerX, centerY) * 0.7;      // Ball properties     const ballRadius = 15;     let x = centerX;     let y = centerY - radius + ballRadius;     let dx = 2;     let dy = 0;      // Gravity and friction     const gravity = 0.2;     const friction = 0.99;      // Matrix rain properties     const fontSize = 14;     const columns = canvas.width / fontSize;     const drops = [];     for (let i = 0; i < columns; i++) {       drops[i] = 1;     }      const drawMatrixRain = () => {       ctx.fillStyle = 'rgba(0, 0, 0, 0.05)';       ctx.fillRect(0, 0, canvas.width, canvas.height);        ctx.fillStyle = '#0F0';       ctx.font = `${fontSize}px monospace`;        for (let i = 0; i < drops.length; i++) {         const text = String.fromCharCode(0x30A0 + Math.random() * 96);         ctx.fillText(text, i * fontSize, drops[i] * fontSize);          if (drops[i] * fontSize > canvas.height && Math.random() > 0.975) {           drops[i] = 0;         }         drops[i]++;       }     };      const draw = () => {       ctx.clearRect(0, 0, canvas.width, canvas.height);        // Draw matrix rain       drawMatrixRain();        // Draw circle       ctx.beginPath();       ctx.arc(centerX, centerY, radius, 0, Math.PI * 2);       ctx.strokeStyle = 'rgba(255, 255, 255, 0.5)';       ctx.stroke();        // Draw ball       ctx.beginPath();       ctx.arc(x, y, ballRadius, 0, Math.PI * 2);       ctx.fillStyle = 'white';       ctx.fill();        // Apply gravity       dy += gravity;        // Ball movement and collision detection       const nextX = x + dx;       const nextY = y + dy;       const distanceFromCenter = Math.sqrt((nextX - centerX) ** 2 + (nextY - centerY) ** 2);        if (distanceFromCenter + ballRadius > radius) {         // Calculate the normal vector         const nx = (nextX - centerX) / distanceFromCenter;         const ny = (nextY - centerY) / distanceFromCenter;          // Calculate the dot product         const dotProduct = dx * nx + dy * ny;          // Update velocity         dx = (dx - 2 * dotProduct * nx) * friction;         dy = (dy - 2 * dotProduct * ny) * friction;       } else {         x = nextX;         y = nextY;       }        animationFrameId = requestAnimationFrame(draw);     };      draw();      return () => {       cancelAnimationFrame(animationFrameId);     };   }, []);    return (     
canvasRef} className="border border-gray-300" />
); }; export default BouncingBallSimulation;

在这里插入图片描述

相关内容

热门资讯

透视游戏!德普之星私人局透视(... 透视游戏!德普之星私人局透视(透视)私人局透视(本来有挂)1)德普之星私人局透视辅助挂:进一步探索德...
透视模拟器!德普之星透视辅助插... 透视模拟器!德普之星透视辅助插件(透视)辅助软件(一直有挂)1、上手简单,内置详细流程视频教学,新手...
透视真的!德普辅助器辅助器怎么... 透视真的!德普辅助器辅助器怎么用(透视)辅助软件(都是存在有挂)小薇(透视辅助)致您一封信;亲爱德普...
透视ai代打!德普之星私人局辅... 透视ai代打!德普之星私人局辅助器(透视)辅助器app(确实存在有挂)1)德普之星私人局辅助器辅助挂...
透视安卓版!德普之星的辅助工具... 透视安卓版!德普之星的辅助工具介绍(透视)免费透视(总是是真的有挂)1、玩家可以在德普之星的辅助工具...
透视计算!德普之星透视辅助软件... 透视计算!德普之星透视辅助软件(透视)透视免费(真是真的有挂)1、很好的工具软件,可以解锁游戏的德普...
透视透视!德普之星辅助软件(透... 透视透视!德普之星辅助软件(透视)透视辅助(其实真的是有挂)1、任何德普之星辅助软件ai辅助神器的玩...
透视苹果版!德普之星的辅助工具... 透视苹果版!德普之星的辅助工具介绍(透视)透视免费(都是存在有挂)1、任何德普之星的辅助工具介绍ai...
透视辅助!德普之星怎么设置埋牌... 透视辅助!德普之星怎么设置埋牌(透视)透视辅助软件下载(果然是有挂)1、许多玩家不知道德普之星怎么设...
透视有挂!德扑圈透视(透视)a... 透视有挂!德扑圈透视(透视)app安卓版破解版(真是真的是有挂);1、超多福利:超高返利,海量正版游...