# fix/item-occupancy

Tags: fort | bugfix | map

Command: `fix/item-occupancy`

Fixes errors with phantom items occupying site.

This tool diagnoses and fixes issues with nonexistent ‘items occupying site’, usually caused by hacking mishaps with items being improperly moved about.

## Usage

    fix/item-occupancy

## Technical details

This tool checks that:

1. Item has `flags.on_ground` <=> it is in the correct block item list

2. A tile has items in block item list <=> it has `occupancy.item`

3. The block item lists are sorted