Lienzo: Flujo de partículas del corazón

2,838 0 zegarkidawida Seguir

Remix Abrir en el editor Pantalla completa Comentar Publica tu código

Recomendado

14 October 2025

Estructura HTML de la animación de carga CSS

20 October 2026

Lienzo para juegos web de Construct 2 con HTML y JavaScript

28 August 2025

Visor de demostración web: Plantillas adaptables y diseño digital

HTML

<div id="controls-container">
  <button id="toggle-controls">Controls</button>
  <button id="toggle-fullscreen">Full Screen</button>
  <div id="controls">
    <div class="control-group">
      <label for="colorScheme">Colors:</label>
      <select id="colorScheme">
        <option value="rainbow">Rainbow</option>
        <option value="red">Red</option>
        <option value="green">Green</option>
        <option value="blue">Blue</option>
        <option value="monochrome">Monochrome</option>
      </select>
    </div>
    <div class="control-group">
      <label for="particleSize">Size:</label>
      <input type="range" id="particleSize" min="1" max="20" value="10">
      <span id="particleSizeValue">10</span>
    </div>
    <div class="control-group">
      <label for="particleCount">Particles:</label>
      <input type="range" id="particleCount" min="10" max="100" value="32">
      <span id="particleCountValue">32</span>
    </div>
    <div class="control-group">
      <label for="speed">Speed:</label>
      <input type="range" id="speed" min="0.1" max="2" step="0.1" value="1">
      <span id="speedValue">1</span>
    </div>
    <div class="control-group">
      <label for="mouseInfluence">Mouse Follow:</label>
      <input type="range" id="mouseInfluence" min="0" max="100" value="50">
      <span id="mouseInfluenceValue">50</span>
    </div>
  </div>
</div>

CSS

body {
  margin: 0;
  padding: 0;
  overflow: hidden;
  background-color: #000;
  font-family: "Archivo Black", sans-serif;
  color: white;
}

#c {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

#controls-container {
  position: fixed;
  top: 20px;
  left: 20px;
  z-index: 100;
}

#toggle-controls {
  background: rgba(0, 0, 0, 0.7);
  color: white;
  border: none;
  padding: 10px;
  border-radius: 5px;
  cursor: pointer;
  margin-bottom: 5px;
  backdrop-filter: blur(5px);
}

#controls {
  background: rgba(100, 100, 100, 0.2);
  padding: 15px;
  border-radius: 10px;
  max-width: 300px;
  backdrop-filter: blur(5px);
  display: block;
}

.control-group {
  margin: 10px 0;
  display: flex;
  align-items: center;
}

.control-group label {
  width: 100px;
  font-size: 14px;
  margin-right: 10px;
}

.control-group input[type="range"] {
  flex-grow: 1;
  margin-right: 10px;
}

.control-group span {
  width: 30px;
  text-align: right;
  font-size: 14px;
}

.control-group select {
  flex-grow: 1;
  padding: 5px;
  border-radius: 4px;
  background: #333;
  color: white;
  border: none;
}

.heart-outline {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 360px;
  height: 320px;
  fill: none;
  stroke: rgba(255, 255, 255, 0.3);
  stroke-width: 2;
  pointer-events: none;
  z-index: 10;
}

#intro-controls {
  margin-top: 20px;
  padding: 20px;
  border-radius: 10px;
  background-color: rgba(0, 0, 0, 0.5);
}

#intro-controls h2 {
  font-size: 1.5em;
  margin-bottom: 10px;
}

#intro-controls ul {
  list-style-type: none;
  padding: 0;
}

#intro-controls li {
  margin-bottom: 5px;
  font-size: 1em;
}

#toggle-fullscreen {
  position: fixed;
  top: 20px;
  right: 20px;
  background: rgba(0, 0, 0, 0.7);
  color: white;
  border: none;
  padding: 10px;
  border-radius: 5px;
  cursor: pointer;
  z-index: 100;
  backdrop-filter: blur(5px);
}

@media (max-width: 600px) {
  #controls-container {
    top: 10px;
    left: 10px;
    right: 10px;
    max-width: none;
  }

.control-group label {
    width: 80px;
    font-size: 12px;
  }
}

// Configuration
const config = {
    particleCount: 32,
    speed: 1,
    colorScheme: 'rainbow',
    mouseInfluence: 50,
    showHeartOutline: true,
    particleSize: 10
};

// Canvas setup
const canvas = document.getElementById('c');
const ctx = canvas.getContext('2d');
let canvasWidth = canvas.width = window.innerWidth;
let canvasHeight = canvas.height = window.innerHeight;

// Animation state
let trails = [];
let heartPath = [];
let mouseX = canvasWidth / 2;
let mouseY = canvasHeight / 2;
let mouseActive = false;
let animationRunning = false;

// Initialize heart path points (fixed formula)
function initHeartPath() {
    heartPath = [];
    const PI2 = 6.28318; // 2*PI approximation
    const steps = Math.max(32, config.particleCount);
    
    for (let i = 0; i < steps; i++) {
        const t = (i / steps) * PI2;
        heartPath.push([
            canvasWidth/2 + 180 * Math.pow(Math.sin(t), 3),
            canvasHeight/2 + 10 * (-(15 * Math.cos(t) - 5 * Math.cos(2*t) - 2 * Math.cos(3*t) - Math.cos(4*t)))
        ]);
    }
}

// Initialize particles with proper bounds checking
function initParticles() {
    trails = [];
    if (heartPath.length === 0) initHeartPath();

for (let i = 0; i < config.particleCount; i++) {
        const particles = [];
        const x = Math.random() * canvasWidth;
        const y = Math.random() * canvasHeight;

for (let k = 0; k < config.particleCount; k++) {
            // Color generation
            let hue, saturation = Math.random() * 40 + 60;
            let brightness = Math.random() * 60 + 20;
            
            switch(config.colorScheme) {
                case 'red': hue = Math.random() * 20 + 350; break;
                case 'blue': hue = Math.random() * 20 + 200; break;
                case 'green': hue = Math.random() * 20 + 100; break;
                case 'monochrome': hue = 0; saturation = 0; break;
                default: hue = i/config.particleCount * 360; // rainbow
            }

particles.push({
                x, y,
                velX: 0, velY: 0,
                radius: ((1 - k/config.particleCount) + 1) * config.particleSize/2,
                speed: Math.random() + 1,
                targetIndex: Math.floor(Math.random() * heartPath.length),
                direction: i % 2 * 2 - 1,
                friction: Math.random() * 0.2 + 0.7,
                color: `hsla(${hue},${saturation}%,${brightness}%,0.1)`
            });
        }
        trails.push(particles);
    }
}

// Render a single particle
function renderParticle(particle) {
    ctx.fillStyle = particle.color;
    ctx.beginPath();
    ctx.arc(particle.x, particle.y, particle.radius, 0, Math.PI * 2);
    ctx.fill();
}

// Main animation loop with robust error handling
function animationLoop() {
    if (!animationRunning) return; // Stop the animation if not running

try {
        // Clear with trail effect
        ctx.fillStyle = "rgba(0, 0, 0, 0.2)";
        ctx.fillRect(0, 0, canvasWidth, canvasHeight);

trails.forEach(trail => {
            if (!trail || !trail.length) return;
            
            const leader = trail[0];
            const target = heartPath[leader.targetIndex % heartPath.length];
            if (!target) return;

// Mouse influence
            if (mouseActive && config.mouseInfluence > 0) {
                const dx = mouseX - leader.x;
                const dy = mouseY - leader.y;
                const dist = Math.sqrt(dx*dx + dy*dy);
                
                if (dist < 300) {
                    const force = (1 - dist/300) * (config.mouseInfluence/20);
                    leader.velX += dx/dist * force;
                    leader.velY += dy/dist * force;
                }
            }

// Move toward target
            const dx = leader.x - target[0];
            const dy = leader.y - target[1];
            const dist = Math.sqrt(dx*dx + dy*dy);

if (dist < 10) {
                if (Math.random() > 0.95) {
                    leader.targetIndex = Math.floor(Math.random() * heartPath.length);
                } else {
                    if (Math.random() > 0.99) leader.direction *= -1;
                    leader.targetIndex += leader.direction;
                    leader.targetIndex = (leader.targetIndex + heartPath.length) % heartPath.length;
                }
            }

// Update physics
            leader.velX += -dx/dist * leader.speed * config.speed;
            leader.velY += -dy/dist * leader.speed * config.speed;
            leader.x += leader.velX;
            leader.y += leader.velY;
            leader.velX *= leader.friction;
            leader.velY *= leader.friction;

// Render trail
            renderParticle(leader);
            for (let k = 1; k < trail.length; k++) {
                trail[k].x -= (trail[k].x - trail[k-1].x) * 0.7;
                trail[k].y -= (trail[k].y - trail[k-1].y) * 0.7;
                renderParticle(trail[k]);
            }
        });
    } catch (error) {
        console.error("Animation error:", error);
    }

requestAnimationFrame(animationLoop);
}

// Control handlers
function setupControls() {
    const controls = document.getElementById('controls');
    let controlsVisible = true;

document.getElementById('toggle-controls').addEventListener('click', () => {
        controlsVisible = !controlsVisible;
        controls.style.display = controlsVisible ? 'block' : 'none';
    });

const updateParticles = () => {
        config.particleCount = Math.min(100, Math.max(10, 
            parseInt(document.getElementById('particleCount').value)));
        document.getElementById('particleCountValue').textContent = config.particleCount;
        initHeartPath();
        initParticles();
    };

// Mouse tracking
    document.addEventListener('mousemove', (e) => {
        mouseX = e.clientX;
        mouseY = e.clientY;
        mouseActive = true;
    });
    document.addEventListener('mouseleave', () => mouseActive = false);

// Window resize
    window.addEventListener('resize', () => {
        canvasWidth = canvas.width = window.innerWidth;
        canvasHeight = canvas.height = window.innerHeight;
        initHeartPath();
    });
}

// Initialize everything
function init() {
    const controls = document.getElementById('controls');
    const canvas = document.getElementById('c');

controls.style.display = 'block';
    canvas.style.display = 'block';
    animationRunning = true;
    setupControls();
    animationLoop(); // Start the animation loop

// Initialize everything
    initHeartPath();
    initParticles();
}

// Start the animation
init();

Comments 0

…