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Use faster canvas reset method #2

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Use faster canvas reset method #2

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4f205a1
Use faster canvas reset method
darenliang Dec 5, 2020
a179d10
Wrap clearRect into a lambda
darenliang Dec 5, 2020
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7 changes: 6 additions & 1 deletion code.js
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Original file line number Diff line number Diff line change
Expand Up @@ -53,6 +53,7 @@ const circle = (ctx, type, color, radius, p) => {
});
};

// Not used currently
const rect = (ctx, stroke, color, x, y, w, h) => {
if (!stroke) {
ctx.fillStyle = color;
Expand All @@ -63,6 +64,10 @@ const rect = (ctx, stroke, color, x, y, w, h) => {
}
};

const clearRect = (ctx, x, y, w, h) => {
ctx.clearRect(x, y, w, h);
};

const text = (ctx, stroke, color, font, text, x, y) => {
ctx.font = font;
if (!stroke) {
Expand Down Expand Up @@ -128,7 +133,7 @@ const main = () => {
setTriangle();
}

rect(ctx, false, "white", 0, 0, canvas.width, canvas.height);
clearRect(ctx, 0, 0, canvas.width, canvas.height);

// Create point pairs beforehand
const pointPairs = permute(points);
Expand Down
2 changes: 1 addition & 1 deletion page.html
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Expand Up @@ -2,6 +2,6 @@
<body>
<canvas id="canvas"></canvas>
<script src="code.js"></script>
<link rel="stylesheet" href="style.css"></link>
<link rel="stylesheet" href="style.css"/>
</body>
</html>