> For the complete documentation index, see [llms.txt](https://alex-plugins.gitbook.io/dungeonmmo/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://alex-plugins.gitbook.io/dungeonmmo/dungeon-creation/building-a-dungeon-part.md).
# Building a dungeon part
{% hint style="danger" %}
**Please read carefully this page before building dungeon parts. If some instructions are not complied with, your dungeon may not be connected at the end**
{% endhint %}
## Introduction
In DungeonMMO, dungeon is made of mutliple parts :
* **corridors** : they are 8x8 builds, there is only 4 kinds or corridos : bend, straight, triple and bridge. You have to create all of them.
* **entrance** : entrance is the arrival room for players. It must contain only **one** door.
* **boss** : boss room is the room where the boss spawn (see [Spawning System](/dungeonmmo/mob-spawning/spawning-system.md)). It must contain only **one** door.
* **unit** : unit is a room that has same characteristics as the entrance (must have only **one** door) but this won't be the player arrival. This room will appear one or zero times per dungeon generation.
* **mobs** : mobs rooms are rooms that can contain mobs, they must have more than one door.
* **special** : spcial rooms have same characteristics as mobs rooms, it's a way to define room rarity as you can choose how many special and mobs rooms there will be in dungeons in the instance file (see [Instances](/dungeonmmo/instances.md)).
Except corridors, all rooms must have a size of minimum (8\***k**)\*(8\***l**) where **k** and **l** must be **superior to 3**. It means that :
* 32\*24, 40\*24, 48\*32, 40\*40 are **valid** sizes
* 16\*24, 41\*45, 32\*12 are **non valid** sizes
## Doors
In every build, doors have to be 4 blocks long, it's the part that will be connected to other rooms or corridors. [Here](/dungeonmmo/dungeon-creation/using-the-selector.md#door-selection) you can find an example or room selection using selector.
## Build a corridor
In this part you'll see how to build corridors. Each cell represents one block (1x1).
**BLACK** cells represents walls.
**RED** cells represents door blocks you have to select using the selector (they have to be placed in the middle of the build).
**White** cells between doors must be empty, others can be whatever you want.
### bend corridor
bend corridor
After creation, this file must be named `bend.xml`
### straight corridor
straight corridor
After creation, this file must be named `straight.xml`
### triple corridor
triple corridor
After creation, this file must be named `triple.xml`
### bridge corridor
bridge corridor
After creation, this file must be named `bridge.xml`
## Build another room
Other rooms must follow the size rule defined in [Introduction](#introduction). In these rooms you can't build doors in corners. See the example below :
room build
Cells in **ORANGE** represent the corners where you cannot place doors.
Cells in **RED** represent an example of door placement for this room (the door must be placed in the middle of a 8x8 part).
Cells in **BLACK** represent walls.
After build, you can select your builds using the [selector](/dungeonmmo/dungeon-creation/using-the-selector.md).
### Permission
The permission for dungeon creation is `dmmo.dungeon_creation`.
