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Documentation: add note about environment variables

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Alibek Omarov 2024-04-05 20:15:38 +03:00
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## Environment variables
#### Xash3D FWGS
The engine respects these environment variables:
| Variable | Type | Description |
| --------------------- | ---------- | ----------- |
| `XASH3D_GAME` | _string_ | Overrides default game directory. Ignored if `-game` command line argument is set |
| `XASH3D_BASEDIR` | _string_ | Sets path to base (root) directory, instead of current working directory |
| `XASH3D_RODIR` | _string_ | Sets path to read-only base (root) directory. Ignored if `-rodir` command line argument is set |
| `XASH3D_EXTRAS_PAK1` | _string_ | Archive file from specified path will be added to virtual filesystem search path in the lowest possible priority |
| `XASH3D_EXTRAS_PAK2` | _string_ | Similar to `XASH3D_EXTRAS_PAK1` but next to it in priority list |
Environment variables NOT listed in the table above are used internally, and aren't considered as stable interface.
#### mdldec
| Variable | Type | Description |
| --------------------- | ---------- | ----------- |
| `MDLDEC_ACT_PATH` | _string_ | If set, will read activities list from this path |