const canvas = document.getElementById('canvas'); const ctx = canvas.getContext('2d'); canvas.width = window.innerWidth; canvas.height = window.innerHeight; const numParticles = 1500; // Increased to 3x const particles = []; const bubbles = []; const plankton = []; const jellyfish = []; const lightShafts = []; const mouse = { x: null, y: null }; const escapeRadius = 100; // Particle setup for (let i = 0; i < numParticles; i++) { particles.push({ x: Math.random() * canvas.width, y: Math.random() * canvas.height, vx: (Math.random() - 0.5) * 0.5, vy: (Math.random() - 0.5) * 0.5, originalVx: (Math.random() - 0.5) * 0.5, originalVy: (Math.random() - 0.5) * 0.5, radius: Math.random() * 3 + 1, color: `rgba(${Math.random() * 50}, ${Math.random() * 50 + 50}, ${Math.random() * 150 + 100}, ${Math.random() * 0.5 + 0.5})` }); } // Bubble setup for (let i = 0; i < 50; i++) { bubbles.push({ x: Math.random() * canvas.width, y: canvas.height + Math.random() * canvas.height, vx: (Math.random() - 0.5) * 0.2, // Add horizontal movement vy: Math.random() * 0.5 + 0.5, radius: Math.random() * 5 + 2, color: `rgba(255, 255, 255, 0.2)` }); } // Plankton setup for (let i = 0; i < 100; i++) { plankton.push({ x: Math.random() * canvas.width, y: Math.random() * canvas.height, vx: (Math.random() - 0.5) * 0.2, vy: (Math.random() - 0.5) * 0.2, radius: Math.random() * 1 + 0.5, color: `rgba(0, 255, 0, 0.8)` }); } // Jellyfish setup for (let i = 0; i < 20; i++) { jellyfish.push({ x: Math.random() * canvas.width, y: canvas.height + Math.random() * canvas.height, vx: (Math.random() - 0.5) * 0.5, vy: (Math.random() * -0.5) - 0.2, radius: Math.random() * 20 + 10, color: `rgba(255, 0, 255, 0.2)` }); } // Light Shaft setup for (let i = 0; i < 10; i++) { lightShafts.push({ x: Math.random() * canvas.width, width: Math.random() * 50 + 10, speed: Math.random() * 0.2 + 0.1 }); } function drawParticle(particle) { ctx.beginPath(); ctx.arc(particle.x, particle.y, particle.radius, 0, Math.PI * 2); ctx.fillStyle = particle.color; ctx.fill(); } function updateParticle(particle) { const dx = particle.x - mouse.x; const dy = particle.y - mouse.y; const distance = Math.sqrt(dx * dx + dy * dy); if (distance < escapeRadius) { const angle = Math.random() * Math.PI * 2; const speed = Math.random() * 2 + 1; // Random speed particle.vx = Math.cos(angle) * speed; particle.vy = Math.sin(angle) * speed; } else { // Slowly return to original speed particle.vx += (particle.originalVx - particle.vx) * 0.05; particle.vy += (particle.originalVy - particle.vy) * 0.05; } particle.x += particle.vx; particle.y += particle.vy; if (particle.x < 0) particle.x = canvas.width; if (particle.x > canvas.width) particle.x = 0; if (particle.y < 0) particle.y = canvas.height; if (particle.y > canvas.height) particle.y = 0; } function drawBubble(bubble) { ctx.beginPath(); ctx.arc(bubble.x, bubble.y, bubble.radius, 0, Math.PI * 2); ctx.fillStyle = bubble.color; ctx.fill(); } function updateBubble(bubble) { bubble.x += bubble.vx; bubble.y -= bubble.vy; if (bubble.y < -bubble.radius) { bubble.y = canvas.height + bubble.radius; bubble.x = Math.random() * canvas.width; } if (bubble.x < 0) bubble.x = canvas.width; if (bubble.x > canvas.width) bubble.x = 0; } function drawPlankton(plankton) { ctx.beginPath(); ctx.arc(plankton.x, plankton.y, plankton.radius, 0, Math.PI * 2); ctx.fillStyle = plankton.color; ctx.fill(); } function updatePlankton(plankton) { plankton.x += plankton.vx; plankton.y += plankton.vy; if (plankton.x < 0) plankton.x = canvas.width; if (plankton.x > canvas.width) plankton.x = 0; if (plankton.y < 0) plankton.y = canvas.height; if (plankton.y > canvas.height) plankton.y = 0; } function drawJellyfish(jellyfish) { ctx.beginPath(); ctx.arc(jellyfish.x, jellyfish.y, jellyfish.radius, 0, Math.PI * 2); ctx.fillStyle = jellyfish.color; ctx.fill(); } function updateJellyfish(jellyfish) { jellyfish.x += jellyfish.vx; jellyfish.y += jellyfish.vy; if (jellyfish.x < 0) jellyfish.x = canvas.width; if (jellyfish.x > canvas.width) jellyfish.x = 0; if (jellyfish.y < -jellyfish.radius) { jellyfish.y = canvas.height + jellyfish.radius; jellyfish.x = Math.random() * canvas.width; } } function drawLightShafts() { ctx.save(); ctx.globalAlpha = 0.1; ctx.filter = 'blur(5px)'; // Apply blur effect to light shafts lightShafts.forEach(shaft => { const gradient = ctx.createLinearGradient(shaft.x, 0, shaft.x + shaft.width, canvas.height); gradient.addColorStop(0, 'rgba(255, 255, 255, 0.1)'); gradient.addColorStop(1, 'rgba(255, 255, 255, 0)'); ctx.fillStyle = gradient; ctx.fillRect(shaft.x, 0, shaft.width, canvas.height); shaft.x += shaft.speed; if (shaft.x > canvas.width) { shaft.x = -shaft.width; } }); ctx.restore(); } function draw() { ctx.clearRect(0, 0, canvas.width, canvas.height); drawLightShafts(); particles.forEach(particle => { updateParticle(particle); drawParticle(particle); }); bubbles.forEach(bubble => { updateBubble(bubble); drawBubble(bubble); }); plankton.forEach(p => { updatePlankton(p); drawPlankton(p); }); jellyfish.forEach(j => { updateJellyfish(j); drawJellyfish(j); }); requestAnimationFrame(draw); } draw(); canvas.addEventListener('mousemove', (event) => { mouse.x = event.clientX; mouse.y = event.clientY; }); window.addEventListener('resize', () => { canvas.width = window.innerWidth; canvas.height = window.innerHeight; });

作品预览「AI 生成艺术5」