Method accept

app/views/play/menu/InventoryModal.js:329–329

(el)

          $(itemSlot).droppable({
            drop: (e, ui) => this.equipSelectedItem(),
            accept (el) { return $(el).parent().hasClass(slot) },
            activeClass: 'droppable',
            hoverClass: 'droppable-hover',
            tolerance: 'touch'