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16 - Mouse Move Shadow #23

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16 - Mouse Move Shadow #23

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66 changes: 66 additions & 0 deletions 16 - Mouse Move Shadow/changi.html
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Original file line number Diff line number Diff line change
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>Mouse Shadow</title>
</head>
<body>
<div class="hero">
<h1 contenteditable>🔥WOAH!</h1>
</div>

<style>
html {
color: black;
font-family: sans-serif;
}

body {
margin: 0;
}

.hero {
min-height: 100vh;
display: flex;
justify-content: center;
align-items: center;
color: black;
}

h1 {
text-shadow: 10px 10px 0 rgba(0, 0, 0, 1);
font-size: 100px;
}
</style>

<script>
const hero = document.querySelector(".hero");
const text = document.querySelector("h1");
const walk = 100;

function shadow(evt) {
const { offsetWidth: width, offsetHeight: height } = hero;
let { offsetX: x, offsetY: y } = evt;

if (this !== evt.target) {
x += evt.target.offsetLeft;
y += evt.target.offsetTop;
}

const xWalk = Math.round((x / width) * walk - walk / 2);
const yWalk = Math.round((y / height) * walk - walk / 2);

// console.log(xWalk, yWalk);

text.style.textShadow = `
${xWalk}px ${yWalk}px 0 rgba(255,0,0,0.1),
${-xWalk}px ${yWalk}px 0 rgba(0,255,0,0.1),
${xWalk}px ${-yWalk}px 0 rgba(0,0,255,0.1),
${-xWalk}px ${-yWalk}px 0 rgba(128,128,0,0.1)
`;
}

hero.addEventListener("mousemove", shadow);
</script>
</body>
</html>