Various tools for working with Doom WADs and levels in Unity. Also a Doom engine, called NaSTY (Not a Sourceport, Thank You)

Because it doesn't already exist. There are various cool applications for such a set of tools but personally I just like the idea of letting potential games of mine use doom levels.

Download a zip of the project from the code or release section and extract the DoomUnity folder contained within into your Unity project, or create a new folder in your Unity project called "DoomUnity" and clone the repository there.

You will also need to download the SharpZip DLL and import it into your Unity project for PK3 support. At some point I will try to include this in the source, or make it optional.

Here are some commands you can try once everything is imported:

WadFile wad = new WadFile(path_to_wad);
MapData map = new MapData(wad, "MAP01");
Texture2D impSprite = DoomGraphic.BuildPatch("TROOA1", wad);

Kinda? you can run around levels and look at monsters! You will of course first need a Doom IWAD to play with. The currently supported IWADs are:

• Doom
• Doom II
• Final Doom
• Freedoom
• Chex Quest

1. Download the latest nasty build (Linux, OSx or Win) from the Releases section and extract it.
2. Add one or more supported IWADS to the root of the nasty build folder.
3. Run nasty.exe. If there is more than one IWAD in the folder you will be prompted to select one.

To run the engine in Unity, you'll first need to generate the engine wad and put that in the root folder of your Unity project (just below Assets). See "Building the engine wad" below for more info. Alternatively, you can just download a build and extract the nasty.wad from there. It won't be updated to the latest source, but this might not be a problem.

To start the engine in Unity, just create an empty gameobject in a new scene and add the GameSetup component to it. Then add the VanillaPlayer prefab to the "Player Prefab" field.

You can also enter commandline arguments here in the Editor Args field. For example, to run extra PWADs, add -file path_to_wads to the commandline parameters.

For Midi, you must have a soundfont file in the root directory, and merge in a wad with MIDI files. The IWADS use MUS files and those are not supported yet.

To build the engine wad (nasty.wad): you'll need python 3, omgifol, and pillow.

pip install omgifol
pip install pillow

You will want to change the path to the root directory of the project or build. then just run python3 build_wad.py to generate the engine wad.

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