109 lines
3.4 KiB
JavaScript
109 lines
3.4 KiB
JavaScript
// Bratonien Glitter Hover Effekt – für .door, .openfield und .fluegel
|
||
document.querySelectorAll(".door, .openfield, .fluegel").forEach(elem => {
|
||
let canvas, ctx, particles = [], anim, hovering = false;
|
||
let cursorX = 0, cursorY = 0;
|
||
|
||
const day = elem.dataset.day;
|
||
const partnerElems = new Set();
|
||
|
||
// Partner zuweisen
|
||
if (elem.classList.contains("door")) {
|
||
document.querySelectorAll(`.openfield[data-day="${day}"]`).forEach(e => partnerElems.add(e));
|
||
}
|
||
if (elem.classList.contains("openfield")) {
|
||
document.querySelectorAll(`.door[data-day="${day}"], .fluegel[data-day="${day}"]`).forEach(e => partnerElems.add(e));
|
||
}
|
||
if (elem.classList.contains("fluegel")) {
|
||
document.querySelectorAll(`.fluegel[data-day="${day}"]:not(.${elem.classList.contains("left") ? "left" : "right"})`).forEach(e => partnerElems.add(e));
|
||
document.querySelectorAll(`.openfield[data-day="${day}"]`).forEach(e => partnerElems.add(e));
|
||
}
|
||
|
||
function setupCanvas() {
|
||
if (canvas) return;
|
||
canvas = document.createElement("canvas");
|
||
canvas.width = elem.offsetWidth * 1.4;
|
||
canvas.height = elem.offsetHeight * 1.4;
|
||
canvas.style.position = "absolute";
|
||
canvas.style.top = "-20%";
|
||
canvas.style.left = "-20%";
|
||
canvas.style.pointerEvents = "none";
|
||
canvas.style.zIndex = "10";
|
||
elem.appendChild(canvas);
|
||
ctx = canvas.getContext("2d");
|
||
}
|
||
|
||
elem.addEventListener("mousemove", e => {
|
||
const rect = elem.getBoundingClientRect();
|
||
cursorX = (e.clientX - rect.left) * 1.4 - (elem.offsetWidth * 0.2);
|
||
cursorY = (e.clientY - rect.top) * 1.4 - (elem.offsetHeight * 0.2);
|
||
});
|
||
|
||
function addParticles() {
|
||
const cx = cursorX || canvas.width / 2;
|
||
const cy = cursorY || canvas.height / 2;
|
||
for (let i = 0; i < 4; i++) {
|
||
const angle = Math.random() * Math.PI * 2;
|
||
const speed = Math.random() * 1.5 + 0.3;
|
||
particles.push({
|
||
x: cx,
|
||
y: cy,
|
||
r: Math.random() * 1.3 + 0.2,
|
||
alpha: Math.random() * 0.7 + 0.3,
|
||
vx: Math.cos(angle) * speed,
|
||
vy: Math.sin(angle) * speed,
|
||
life: Math.random() * 120 + 60,
|
||
decay: Math.random() * 0.015 + 0.008
|
||
});
|
||
}
|
||
}
|
||
|
||
function draw() {
|
||
ctx.clearRect(0, 0, canvas.width, canvas.height);
|
||
if (hovering) addParticles();
|
||
|
||
particles.forEach(p => {
|
||
ctx.beginPath();
|
||
const grad = ctx.createRadialGradient(p.x, p.y, 0, p.x, p.y, p.r * 3);
|
||
grad.addColorStop(0, `rgba(200, 170, 73, ${p.alpha})`);
|
||
grad.addColorStop(0.3, `rgba(255, 240, 200, ${p.alpha * 0.8})`);
|
||
grad.addColorStop(1, "transparent");
|
||
ctx.fillStyle = grad;
|
||
ctx.arc(p.x, p.y, p.r * 3, 0, Math.PI * 2);
|
||
ctx.fill();
|
||
|
||
p.x += p.vx;
|
||
p.y += p.vy + 0.05;
|
||
p.vx *= 0.98;
|
||
p.vy *= 0.98;
|
||
p.alpha -= p.decay;
|
||
p.life--;
|
||
});
|
||
|
||
particles = particles.filter(p => p.life > 0 && p.alpha > 0);
|
||
anim = requestAnimationFrame(draw);
|
||
}
|
||
|
||
// HOVER START
|
||
elem.addEventListener("mouseenter", () => {
|
||
setupCanvas();
|
||
hovering = true;
|
||
cancelAnimationFrame(anim);
|
||
draw();
|
||
|
||
partnerElems.forEach(p => p.classList.add("hover-proxy"));
|
||
});
|
||
|
||
// HOVER ENDE
|
||
elem.addEventListener("mouseleave", () => {
|
||
hovering = false;
|
||
setTimeout(() => {
|
||
if (!hovering) {
|
||
cancelAnimationFrame(anim);
|
||
particles = [];
|
||
ctx.clearRect(0, 0, canvas.width, canvas.height);
|
||
}
|
||
}, 300);
|
||
|
||
partnerElems.forEach(p => p.classList.remove("hover-proxy"));
|
||
});
|
||
}); |