58 lines
1.2 KiB
HTML
58 lines
1.2 KiB
HTML
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>HTML5 Canvas</title>
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<link rel="icon" href="https://fav.farm/🔥" />
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</head>
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<body>
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<canvas id="draw" width="800" height="800"></canvas>
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<script>
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const canvas = document.querySelector('#draw');
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const ctx = canvas.getContext('2d');
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canvas.width = window.innerWidth;
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canvas.heigh = window.innerHeight;
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ctx.strokeStyle = '#BADA55';
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ctx.lineJoin = 'round';
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ctx.lineCap = 'round';
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ctx.lineWidth = 6;
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let isDrawing = false;
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let lastX = 0;
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let lastY = 0;
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let hue = 0;
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function draw(e) {
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if(!isDrawing) return;
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// console.log(e);
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ctx.strokeStyle = `hsl(${hue}, 100%, 50%)`;
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ctx.beginPath();
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ctx.moveTo(lastX, lastY);
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ctx.lineTo(e.offsetX, e.offsetY);
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ctx.stroke();
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[lastX, lastY] = [e.offsetX, e.offsetY];
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hue++;
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if(hue > 360) hue = 0;
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}
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canvas.addEventListener('mousedown', (e)=> {
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isDrawing = true;
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[lastX, lastY] = [e.offsetX, e.offsetY];
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});
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canvas.addEventListener('mousemove', draw);
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canvas.addEventListener('mouseup', ()=> isDrawing = false);
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canvas.addEventListener('mouseout', ()=> isDrawing = false);
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</script>
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<style>
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html, body {
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margin: 0;
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}
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</style>
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</body>
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</html>
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