gets the amount of free spaces in the inventory concode_field_sep Widget inventoryWidget concode_field_sep int[] getItemIds concode_elem_sep boolean contains concode_elem_sep int size concode_elem_sep int[] getItemQuantities concode_elem_sep boolean isFull concode_elem_sep int countItem concode_elem_sep int getCapacity
int function ( ) { return getCapacity ( ) - size ( ) ; }