Silent-Post-Extreme/index.html at main · DasWeltall/Silent-Post-Extreme · GitHub

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<!DOCTYPE html>
<html lang="de">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Zeichenfläche</title>
    <style>
        @import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css');

        body {
            margin: 0;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
            height: 100vh;
            background-color: #f0f0f0;
            touch-action: none;
        }
        .toolbar {
            position: fixed;
            top: 20px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 15px;
            background: rgba(255, 255, 255, 0.95);
            padding: 12px 20px;
            border-radius: 12px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
            backdrop-filter: blur(10px);
            z-index: 1000;
        }
        .toolbar button, .toolbar input {
            background: none;
            border: none;
            cursor: pointer;
            font-size: 24px;
            color: #333;
            transition: transform 0.2s ease;
        }
        .toolbar button:hover {
            transform: scale(1.1);
        }
        .toolbar input[type="color"] {
            width: 30px;
            height: 30px;
            border: none;
            padding: 0;
            cursor: pointer;
        }
        .toolbar input[type="range"] {
            width: 100px;
        }
        canvas {
            position: absolute;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            background: repeating-linear-gradient(
                0deg, #ccc, #ccc 1px, transparent 1px, transparent 20px),
                repeating-linear-gradient(
                90deg, #ccc, #ccc 1px, transparent 1px, transparent 20px);
            cursor: crosshair;
            z-index: 1;
        }
    </style>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css">
</head>
<body>
    <div class="toolbar">
        <input type="color" id="colorPicker" value="#000000" onchange="changeColor()">
        <button id="colorButton" title="Farbe wählen"><i class="fa-solid fa-palette"></i></button>
        <button id="clearButton" title="Leeren"><i class="fa-solid fa-trash"></i></button>
        <button id="eraserButton" title="Radierer"><i class="fa-solid fa-eraser"></i></button>
        <input type="range" id="brushSize" min="1" max="20" value="3" onchange="changeBrushSize()">
    </div>
    <canvas id="canvas"></canvas>
    <script>
        const canvas = document.getElementById('canvas');
        const ctx = canvas.getContext('2d');
        let painting = false;
        let erasing = false;
        let currentColor = "#000000";
        let lineWidth = 3;
        let eraserSize = 20;

        function resizeCanvas() {
            canvas.width = window.innerWidth;
            canvas.height = window.innerHeight;
        }
        resizeCanvas();
        window.addEventListener('resize', resizeCanvas);

        function startPosition(e) {
            if (e.target.closest('.toolbar')) return;
            painting = true;
            draw(e);
        }

        function stopPosition() {
            painting = false;
            ctx.beginPath();
        }

        function draw(e) {
            if (!painting) return;
            const x = e.clientX || e.touches[0].clientX;
            const y = e.clientY || e.touches[0].clientY;
            ctx.lineWidth = erasing ? eraserSize : lineWidth;
            ctx.lineCap = 'round';
            ctx.strokeStyle = erasing ? '#f0f0f0' : currentColor;
            ctx.lineTo(x, y);
            ctx.stroke();
            ctx.beginPath();
            ctx.moveTo(x, y);
        }

        function changeColor() {
            currentColor = document.getElementById('colorPicker').value;
            erasing = false;
        }

        function toggleEraser() {
            erasing = !erasing;
        }

        function clearCanvas() {
            ctx.clearRect(0, 0, canvas.width, canvas.height);
        }

        function changeBrushSize() {
            lineWidth = document.getElementById('brushSize').value;
        }

        document.getElementById('colorButton').addEventListener('click', changeColor);
        document.getElementById('eraserButton').addEventListener('click', toggleEraser);
        document.getElementById('clearButton').addEventListener('click', clearCanvas);

        canvas.addEventListener('mousedown', startPosition);
        canvas.addEventListener('mouseup', stopPosition);
        canvas.addEventListener('mousemove', draw);

        canvas.addEventListener('touchstart', (e) => { e.preventDefault(); startPosition(e); });
        canvas.addEventListener('touchend', stopPosition);
        canvas.addEventListener('touchmove', (e) => { e.preventDefault(); draw(e); });
    </script>
</body>
</html>