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<!DOCTYPE html>
<html>
<head>
    <title>Rotating Arrows System</title>
    <style>
        body {
            margin: 0;
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            background: #1a1a1a;
            font-family: Arial, sans-serif;
            color: white;
        }

        #container {
            position: relative;
            text-align: center;
        }

        .screen {
            display: none;
            margin-bottom: 20px;
        }

        .active {
            display: block;
        }

        .arrow-config {
            background: rgba(255, 255, 255, 0.1);
            padding: 15px;
            margin: 10px;
            border-radius: 8px;
        }

        button {
            padding: 10px 20px;
            margin: 5px;
            font-size: 16px;
            background: #4a90e2;
            border: none;
            border-radius: 5px;
            color: white;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        button:hover {
            background: #357abd;
            transform: translateY(-2px);
        }

        input {
            width: 60px;
            padding: 5px;
            margin: 5px;
            border: none;
            border-radius: 3px;
            background: rgba(255, 255, 255, 0.2);
            color: white;
        }

        input:focus {
            outline: none;
            background: rgba(255, 255, 255, 0.3);
        }

        canvas {
            background: #333;
            border-radius: 8px;
            margin-top: 20px;
        }

        #resetBtn {
            position: fixed;
            top: 20px;
            right: 20px;
            background: #e74c3c;
        }

        #resetBtn:hover {
            background: #c0392b;
        }

        .controls {
            margin-top: 20px;
        }

        h2 {
            color: #4a90e2;
            margin-bottom: 20px;
        }

        .arrow-config label {
            display: inline-block;
            width: 60px;
            text-align: right;
            margin-right: 10px;
        }
    </style>
</head>
<body>
    <button id="resetBtn" onclick="reset()" style="display: none;">Reset</button>

    <div id="container">
        <div id="startScreen" class="screen active">
            <h2>Select Number of Arrows</h2>
            <div>
                <button onclick="selectArrows(2)">2 Arrows</button>
                <button onclick="selectArrows(3)">3 Arrows</button>
                <button onclick="selectArrows(4)">4 Arrows</button>
                <button onclick="selectArrows(5)">5 Arrows</button>
            </div>
        </div>

        <div id="configScreen" class="screen">
            <h2>Configure Arrows</h2>
            <div id="arrowConfigs"></div>
            <button onclick="startAnimation()">Start Animation</button>
        </div>

        <canvas id="canvas" width="800" height="600" style="display: none;"></canvas>
    </div>

    <script>
        let arrows = [];
        let animationId = null;
        let canvas, ctx;
        let pathPoints = [];
        
        class Arrow {
            constructor(length, speed) {
                this.length = length * 50;
                this.speed = speed;
                this.angle = 0;
            }
        }

        function selectArrows(num) {
            document.getElementById('startScreen').classList.remove('active');
            document.getElementById('configScreen').classList.add('active');
            document.getElementById('resetBtn').style.display = 'block';
            
            const configsDiv = document.getElementById('arrowConfigs');
            configsDiv.innerHTML = '';
            
            for(let i = 0; i < num; i++) {
                const speed = (Math.random() * 4 + 1).toFixed(1);
                const length = (Math.random() * 4 + 1).toFixed(1);
                
                const config = document.createElement('div');
                config.className = 'arrow-config';
                config.innerHTML = `
                    <h3>Arrow ${i + 1}</h3>
                    <div>
                        <label>Speed:</label>
                        <input type="number" min="0.1" max="5" step="0.1" value="${speed}" id="speed${i}">
                    </div>
                    <div>
                        <label>Length:</label>
                        <input type="number" min="0.1" max="5" step="0.1" value="${length}" id="length${i}">
                    </div>
                `;
                configsDiv.appendChild(config);
            }
        }

        function startAnimation() {
            arrows = [];
            const inputs = document.querySelectorAll('.arrow-config input');
            for(let i = 0; i < inputs.length/2; i++) {
                const speed = parseFloat(document.getElementById(`speed${i}`).value);
                const length = parseFloat(document.getElementById(`length${i}`).value);
                arrows.push(new Arrow(length, speed));
            }
            
            document.getElementById('configScreen').classList.remove('active');
            
            canvas = document.getElementById('canvas');
            canvas.style.display = 'block';
            ctx = canvas.getContext('2d');
            
            pathPoints = [];
            if(animationId) cancelAnimationFrame(animationId);
            animate();
        }

        function animate() {
            // Clear canvas
            ctx.fillStyle = '#333';
            ctx.fillRect(0, 0, canvas.width, canvas.height);
            
            // Start from center
            let x = canvas.width / 2;
            let y = canvas.height / 2;
            let totalAngle = 0;
            
            // Draw arrows
            for(let i = 0; i < arrows.length; i++) {
                const arrow = arrows[i];
                arrow.angle += arrow.speed * 0.02;
                totalAngle += arrow.angle;
                
                // Draw arrow line
                ctx.beginPath();
                ctx.moveTo(x, y);
                const endX = x + Math.cos(totalAngle) * arrow.length;
                const endY = y + Math.sin(totalAngle) * arrow.length;
                ctx.lineTo(endX, endY);
                ctx.strokeStyle = '#4a90e2';
                ctx.lineWidth = 3;
                ctx.stroke();
                
                // Draw joint
                ctx.beginPath();
                ctx.arc(x, y, 5, 0, Math.PI * 2);
                ctx.fillStyle = '#2ecc71';
                ctx.fill();
                
                // Update start point for next arrow
                x = endX;
                y = endY;
                
                // Store path point for last arrow
                if(i === arrows.length - 1) {
                    pathPoints.push({x, y});
                    if(pathPoints.length > 200) pathPoints.shift();
                }
            }
            
            // Draw path
            if(pathPoints.length > 1) {
                ctx.beginPath();
                ctx.moveTo(pathPoints[0].x, pathPoints[0].y);
                for(let i = 1; i < pathPoints.length; i++) {
                    const point = pathPoints[i];
                    ctx.lineTo(point.x, point.y);
                }
                ctx.strokeStyle = '#e74c3c';
                ctx.lineWidth = 2;
                ctx.stroke();
            }
            
            animationId = requestAnimationFrame(animate);
        }

        function reset() {
            if(animationId) {
                cancelAnimationFrame(animationId);
                animationId = null;
            }
            
            arrows = [];
            pathPoints = [];
            
            document.getElementById('startScreen').classList.add('active');
            document.getElementById('configScreen').classList.remove('active');
            document.getElementById('canvas').style.display = 'none';
            document.getElementById('resetBtn').style.display = 'none';
            
            const configsDiv = document.getElementById('arrowConfigs');
            configsDiv.innerHTML = '';
        }

        // Initialize
        window.onload = () => {
            canvas = document.getElementById('canvas');
            ctx = canvas.getContext('2d');
        };
    </script>
</body>
</html><script async data-explicit-opt-in="true" data-cookie-opt-in="true" src="https://vercel.live/_next-live/feedback/feedback.js"></script>