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File size: 2,946 Bytes
75fefa7 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 | "use client";
import { animate } from "motion";
import { useEffect, useRef } from "react";
import initCanvas from "@/utils/init-canvas";
export default function EndpointsExtract({ size = 20 }: { size?: number }) {
const canvasRef = useRef<HTMLCanvasElement>(null);
useEffect(() => {
const canvas = canvasRef.current;
if (!canvas) return;
const ctx = initCanvas(canvas);
let isRunning = false;
let isActive = false;
let diff = 0;
const defaultRowAlphas = [
0.4, 0.04, 0.2, 0.4, 0.2, 0, 0, 0.04, 0.04, 0, 0, 0.2, 0.4, 0.2, 0.04,
0.4,
];
const differs = Array.from({ length: 16 }, () => 0.2 + Math.random() * 0.2);
const scaler = size / 20;
const render = () => {
ctx.fillStyle = "#FF4C00";
ctx.clearRect(0, 0, canvas.width, canvas.height);
for (let i = 0; i < 16; i++) {
if ([5, 6, 9, 10].includes(i)) continue;
ctx.globalAlpha = defaultRowAlphas[i] + diff * differs[i];
ctx.globalAlpha =
Math.min(ctx.globalAlpha, 0.4) - Math.max(ctx.globalAlpha - 0.4, 0);
ctx.fillRect(
(3 + (i % 4) * 4) * scaler,
(3 + Math.floor(i / 4) * 4) * scaler,
2 * scaler,
2 * scaler,
);
}
ctx.globalAlpha = 1;
ctx.fillRect(7, 7, 6, 2);
ctx.globalAlpha = 0.4;
ctx.fillRect(7, 11, 2 + diff * 4, 2);
if (isRunning) {
requestAnimationFrame(render);
}
};
const timeouts: number[] = [];
let runCount = 0;
const duration = 300;
const cycle = () => {
isRunning = true;
animate(diff, 1, {
duration: duration / 1000,
onUpdate: (value) => {
diff = value < 0.5 ? value * 2 : 1 - (value - 0.5) * 2;
},
});
timeouts.forEach((timeout) => {
window.clearTimeout(timeout);
});
timeouts.push(
window.setTimeout(
() => {
isRunning = false;
},
Math.max(duration, 300),
),
);
runCount += 1;
if (runCount === 3 || !isActive) return;
timeouts.push(
window.setTimeout(() => {
cycle();
}, duration),
);
};
const activate = () => {
if (isActive) return;
isActive = true;
runCount = 0;
cycle();
render();
};
const deactivate = () => {
if (!isActive) return;
isActive = false;
};
render();
canvas.addEventListener("resize", render);
const group = canvasRef.current!.closest(".group");
if (group) {
group.addEventListener("mouseenter", activate);
group.addEventListener("mouseleave", deactivate);
return () => {
group.removeEventListener("mouseenter", activate);
group.removeEventListener("mouseleave", deactivate);
};
}
}, [size]);
return <canvas ref={canvasRef} style={{ width: size, height: size }} />;
}
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