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Bratonien-Adventskalender/adventskalender/shared/js/position.js

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/**
* Bratonien Adventskalender Türchen-Positionierung (2025)
* ---------------------------------------------------------
* Liest data-top / data-left / data-width aus jedem .door
* und positioniert die Elemente exakt auf dem sichtbaren Bild.
*/
function positionAllDoors() {
const container = document.querySelector('.kalenderbild');
const img = container?.querySelector('img');
if (!container || !img) return;
const imgRect = img.getBoundingClientRect();
const contRect = container.getBoundingClientRect();
// alle Türen neu berechnen
document.querySelectorAll('.door').forEach(door => {
const topPct = parseFloat(door.dataset.top) || 0;
const leftPct = parseFloat(door.dataset.left) || 0;
const widthPct = parseFloat(door.dataset.width) || 10;
const doorWidth = imgRect.width * (widthPct / 100);
door.style.position = 'absolute';
door.style.width = doorWidth + 'px';
door.style.height = doorWidth + 'px';
door.style.top = (imgRect.top - contRect.top + imgRect.height * (topPct / 100)) + 'px';
door.style.left = (imgRect.left - contRect.left + imgRect.width * (leftPct / 100)) + 'px';
});
}
// Positionierung bei Start und Fensteränderung
window.addEventListener('load', positionAllDoors);
window.addEventListener('resize', positionAllDoors);