Ruleta de decisiones

1,406 sergioarmijo30

Abrir en el editor Publica tu código

Recomendado

26 February 2024

Formulario de inicio de sesión HTML CSS

27 May 2026

Juego de muñecos de trapo - Código de inserción de juego HTML5

18 December 2025

Juego de la Espada Más Profunda - Juega en línea (HTML5)

HTML

CSS

const canvas = document.getElementById('wheel');
const ctx = canvas.getContext('2d');
const spinBtn = document.getElementById('spin');
const generateBtn = document.getElementById('generate');
const numSegmentsInput = document.getElementById('numSegments');
const result = document.getElementById('result');

let segments = [];
let colors = [];
let startAngle = 0;
let arc = 0;
let spinAngle = 0;
let spinning = false;

function drawWheel() {
  const numSegments = segments.length;
  arc = (2 * Math.PI) / numSegments;

ctx.clearRect(0, 0, canvas.width, canvas.height);

for (let i = 0; i < numSegments; i++) {
    const angle = startAngle + i * arc;
    ctx.beginPath();
    ctx.moveTo(250, 250);
    ctx.arc(250, 250, 250, angle, angle + arc);
    ctx.fillStyle = colors[i];
    ctx.fill();
    ctx.save();

ctx.translate(250, 250);
    ctx.rotate(angle + arc / 2);
    ctx.textAlign = "right";
    ctx.fillStyle = "#000";
    ctx.font = "bold 20px Arial";
    ctx.fillText(segments[i], 230, 10);
    ctx.restore();
  }
}

function spinWheel() {
  if (spinning) return;
  spinning = true;
  result.textContent = '';

const spins = Math.floor(Math.random() * 5 + 5); // vueltas enteras
  const finalAngle = Math.random() * 2 * Math.PI;  // ángulo extra
  const totalRotation = spins * 2 * Math.PI + finalAngle;

const duration = 4000; // duración en ms
  const start = performance.now();

function animate(time) {
    const elapsed = time - start;
    const progress = Math.min(elapsed / duration, 1);
    // Ease-out con función cúbica
    const easedProgress = 1 - Math.pow(1 - progress, 3);
    startAngle = totalRotation * easedProgress;

drawWheel();

if (progress < 1) {
      requestAnimationFrame(animate);
    } else {
      spinning = false;
      const degrees = (startAngle * 180) / Math.PI + 90;
      const arcd = (arc * 180) / Math.PI;
      const index = Math.floor((360 - (degrees % 360)) / arcd) % segments.length;
      result.textContent = `¡Ganaste: ${segments[index]}!`;
    }
  }

requestAnimationFrame(animate);
}

generateBtn.addEventListener('click', generateWheel);
spinBtn.addEventListener('click', spinWheel);

generateWheel();