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Keep the cat in the navbar !

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Signed-off-by: Hadi <112569860+anotherhadi@users.noreply.github.com>
This commit is contained in:
Hadi
2026-04-24 23:20:58 +02:00
parent e332a5732b
commit 97bdfd9a6e
2 changed files with 99 additions and 240 deletions
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public/scripts/oneko.js
+97 -240
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@@ -1,284 +1,141 @@
// oneko.js: https://github.com/adryd325/oneko.js
// oneko.js — navbar wanderer (based on https://github.com/adryd325/oneko.js)
(function oneko() {
const isReducedMotion =
window.matchMedia(`(prefers-reduced-motion: reduce)`) === true ||
window.matchMedia(`(prefers-reduced-motion: reduce)`).matches === true;
if (window.matchMedia("(prefers-reduced-motion: reduce)").matches) return;
if (isReducedMotion) return;
const SIZE = 32;
const SPEED = 10;
const nekoEl = document.createElement("div");
let persistPosition = true;
let nekoPosX = 32;
let nekoPosY = 32;
let mousePosX = 0;
let mousePosY = 0;
let frameCount = 0;
let idleTime = 0;
let idleAnimation = null;
let idleAnimationFrame = 0;
const nekoSpeed = 10;
const spriteSets = {
idle: [[-3, -3]],
alert: [[-7, -3]],
scratchSelf: [
[-5, 0],
[-6, 0],
[-7, 0],
],
scratchWallN: [
[0, 0],
[0, -1],
],
scratchWallS: [
[-7, -1],
[-6, -2],
],
scratchWallE: [
[-2, -2],
[-2, -3],
],
scratchWallW: [
[-4, 0],
[-4, -1],
],
tired: [[-3, -2]],
sleeping: [
[-2, 0],
[-2, -1],
],
N: [
[-1, -2],
[-1, -3],
],
NE: [
[0, -2],
[0, -3],
],
E: [
[-3, 0],
[-3, -1],
],
SE: [
[-5, -1],
[-5, -2],
],
S: [
[-6, -3],
[-7, -2],
],
SW: [
[-5, -3],
[-6, -1],
],
W: [
[-4, -2],
[-4, -3],
],
NW: [
[-1, 0],
[-1, -1],
],
idle: [[-3, -3]],
alert: [[-7, -3]],
scratchSelf: [[-5, 0], [-6, 0], [-7, 0]],
scratchWallE:[[-2, -2], [-2, -3]],
scratchWallW:[[-4, 0], [-4, -1]],
tired: [[-3, -2]],
sleeping: [[-2, 0], [-2, -1]],
E: [[-3, 0], [-3, -1]],
W: [[-4, -2], [-4, -3]],
};
function init() {
let nekoFile = "/oneko.gif";
const curScript = document.currentScript;
if (curScript && curScript.dataset.cat) {
nekoFile = curScript.dataset.cat;
}
if (curScript && curScript.dataset.persistPosition) {
if (curScript.dataset.persistPosition === "") {
persistPosition = true;
} else {
persistPosition = JSON.parse(
curScript.dataset.persistPosition.toLowerCase(),
);
}
}
const track = document.getElementById("oneko-track");
if (!track) return;
if (persistPosition) {
let storedNeko = JSON.parse(window.localStorage.getItem("oneko"));
if (storedNeko !== null) {
nekoPosX = storedNeko.nekoPosX;
nekoPosY = storedNeko.nekoPosY;
mousePosX = storedNeko.mousePosX;
mousePosY = storedNeko.mousePosY;
frameCount = storedNeko.frameCount;
idleTime = storedNeko.idleTime;
idleAnimation = storedNeko.idleAnimation;
idleAnimationFrame = storedNeko.idleAnimationFrame;
nekoEl.style.backgroundPosition = storedNeko.bgPos;
}
}
const el = document.createElement("div");
el.id = "oneko";
el.ariaHidden = "true";
el.style.width = `${SIZE}px`;
el.style.height = `${SIZE}px`;
el.style.position = "absolute";
el.style.bottom = "0";
el.style.pointerEvents = "none";
el.style.imageRendering = "pixelated";
el.style.zIndex = "2147483647";
el.style.backgroundImage= "url(/oneko.gif)";
track.appendChild(el);
nekoEl.id = "oneko";
nekoEl.ariaHidden = true;
nekoEl.style.width = "32px";
nekoEl.style.height = "32px";
nekoEl.style.position = "fixed";
nekoEl.style.pointerEvents = "none";
nekoEl.style.imageRendering = "pixelated";
nekoEl.style.left = `${nekoPosX - 16}px`;
nekoEl.style.top = `${nekoPosY - 16}px`;
nekoEl.style.zIndex = 2147483647;
nekoEl.style.backgroundImage = `url(${nekoFile})`;
document.body.appendChild(nekoEl);
document.addEventListener("mousemove", function (event) {
mousePosX = event.clientX;
mousePosY = event.clientY;
});
if (persistPosition) {
window.addEventListener("beforeunload", function (_event) {
window.localStorage.setItem(
"oneko",
JSON.stringify({
nekoPosX: nekoPosX,
nekoPosY: nekoPosY,
mousePosX: mousePosX,
mousePosY: mousePosY,
frameCount: frameCount,
idleTime: idleTime,
idleAnimation: idleAnimation,
idleAnimationFrame: idleAnimationFrame,
bgPos: nekoEl.style.backgroundPosition,
}),
);
});
}
window.requestAnimationFrame(onAnimationFrame);
}
let lastFrameTimestamp;
function onAnimationFrame(timestamp) {
// Stops execution if the neko element is removed from DOM
if (!nekoEl.isConnected) {
return;
}
if (!lastFrameTimestamp) {
lastFrameTimestamp = timestamp;
}
if (timestamp - lastFrameTimestamp > 100) {
lastFrameTimestamp = timestamp;
frame();
}
window.requestAnimationFrame(onAnimationFrame);
}
function maxX() { return track.offsetWidth - SIZE; }
function clamp(v,lo,hi) { return Math.max(lo, Math.min(hi, v)); }
function randomTarget() { return Math.random() * maxX(); }
function setSprite(name, frame) {
const sprite = spriteSets[name][frame % spriteSets[name].length];
nekoEl.style.backgroundPosition = `${sprite[0] * 32}px ${sprite[1] * 32}px`;
const s = spriteSets[name][frame % spriteSets[name].length];
el.style.backgroundPosition = `${s[0] * SIZE}px ${s[1] * SIZE}px`;
}
function resetIdleAnimation() {
idleAnimation = null;
idleAnimationFrame = 0;
}
let posX = randomTarget();
let targetX = posX;
el.style.left = `${posX}px`;
let frameCount = 0;
let idleTime = 0;
let idleAnim = null;
let idleAnimFrame = 0;
let lastTs = null;
function resetIdle() { idleAnim = null; idleAnimFrame = 0; }
function idle() {
idleTime += 1;
idleTime++;
// every ~ 20 seconds
if (
idleTime > 10 &&
Math.floor(Math.random() * 200) == 0 &&
idleAnimation == null
) {
let avalibleIdleAnimations = ["sleeping", "scratchSelf"];
if (nekoPosX < 32) {
avalibleIdleAnimations.push("scratchWallW");
}
if (nekoPosY < 32) {
avalibleIdleAnimations.push("scratchWallN");
}
if (nekoPosX > window.innerWidth - 32) {
avalibleIdleAnimations.push("scratchWallE");
}
if (nekoPosY > window.innerHeight - 32) {
avalibleIdleAnimations.push("scratchWallS");
}
idleAnimation =
avalibleIdleAnimations[
Math.floor(Math.random() * avalibleIdleAnimations.length)
];
if (idleTime > 40 && Math.floor(Math.random() * 120) === 0) {
targetX = randomTarget();
idleTime = 0;
resetIdle();
return;
}
switch (idleAnimation) {
if (idleTime > 15 && idleAnim == null && Math.floor(Math.random() * 180) === 0) {
const opts = ["sleeping", "scratchSelf"];
if (posX <= SIZE) opts.push("scratchWallW");
if (posX >= maxX() - SIZE) opts.push("scratchWallE");
idleAnim = opts[Math.floor(Math.random() * opts.length)];
}
switch (idleAnim) {
case "sleeping":
if (idleAnimationFrame < 8) {
setSprite("tired", 0);
break;
}
setSprite("sleeping", Math.floor(idleAnimationFrame / 4));
if (idleAnimationFrame > 192) {
resetIdleAnimation();
}
if (idleAnimFrame < 8) { setSprite("tired", 0); break; }
setSprite("sleeping", Math.floor(idleAnimFrame / 4));
if (idleAnimFrame > 192) resetIdle();
break;
case "scratchWallN":
case "scratchWallS":
case "scratchWallE":
case "scratchWallW":
case "scratchSelf":
setSprite(idleAnimation, idleAnimationFrame);
if (idleAnimationFrame > 9) {
resetIdleAnimation();
}
setSprite(idleAnim, idleAnimFrame);
if (idleAnimFrame > 9) resetIdle();
break;
default:
setSprite("idle", 0);
return;
}
idleAnimationFrame += 1;
idleAnimFrame++;
}
function frame() {
frameCount += 1;
const diffX = nekoPosX - mousePosX;
const diffY = nekoPosY - mousePosY;
const distance = Math.sqrt(diffX ** 2 + diffY ** 2);
frameCount++;
const diff = targetX - posX;
const dist = Math.abs(diff);
if (distance < nekoSpeed || distance < 48) {
if (dist < SPEED) {
posX = targetX;
idle();
return;
}
idleAnimation = null;
idleAnimationFrame = 0;
resetIdle();
if (idleTime > 1) {
if (idleTime > 5) {
setSprite("alert", 0);
// count down after being alerted before moving
idleTime = Math.min(idleTime, 7);
idleTime -= 1;
idleTime = Math.min(idleTime, 7) - 1;
return;
}
idleTime = 0;
let direction;
direction = diffY / distance > 0.5 ? "N" : "";
direction += diffY / distance < -0.5 ? "S" : "";
direction += diffX / distance > 0.5 ? "W" : "";
direction += diffX / distance < -0.5 ? "E" : "";
setSprite(direction, frameCount);
nekoPosX -= (diffX / distance) * nekoSpeed;
nekoPosY -= (diffY / distance) * nekoSpeed;
nekoPosX = Math.min(Math.max(16, nekoPosX), window.innerWidth - 16);
nekoPosY = Math.min(Math.max(16, nekoPosY), window.innerHeight - 16);
nekoEl.style.left = `${nekoPosX - 16}px`;
nekoEl.style.top = `${nekoPosY - 16}px`;
setSprite(diff > 0 ? "E" : "W", frameCount);
posX = clamp(posX + (diff > 0 ? SPEED : -SPEED), 0, maxX());
el.style.left = `${posX}px`;
}
init();
function loop(ts) {
if (!el.isConnected) return;
if (!lastTs) lastTs = ts;
if (ts - lastTs > 100) { lastTs = ts; frame(); }
window.requestAnimationFrame(loop);
}
let lastTrackWidth = track.offsetWidth;
window.addEventListener("resize", () => {
const newWidth = track.offsetWidth;
if (lastTrackWidth > 0) {
const ratio = newWidth / lastTrackWidth;
posX = clamp(posX * ratio, 0, maxX());
targetX = clamp(targetX * ratio, 0, maxX());
el.style.left = `${posX}px`;
}
lastTrackWidth = newWidth;
});
setTimeout(() => { targetX = randomTarget(); }, 800 + Math.random() * 1500);
window.requestAnimationFrame(loop);
})();