GraviNULL is a multiplayer first person Zero Gravity mod for Source.
This is a simple guide on how to mount the .fgd file for the needed entities, with some additional gamemode information.
Posted by DuckSauce on Jul 4th, 2010
This is a simple guide on how to mount the .fgd file for the needed entities. Let's begin with launching Source SDK which can be found under the Tools tab in the Steam interface.
Click on "Edit Game Configurations"
Press "Add". And under name put in GraviNULL and press browse and find the directory "steamapps/sourcemods/gravinull". Press OK
Now make sure you have selected "Current Game: GraviNULL" on the bottom of the Source SDK window. After checking, run "Hammer Editor".
Wait for hammer to load and go to "Tools > Options...". Make sure you have GraviNULL selected, and press "Add".
Now you have to find the gravinull.fgd file which is by default located in the "steamapps/SourceMods/GraviNULL" folder. When you found it select it and press OK.
Some usefull entity stuff to know for most gamemodes would be:
To turn your gamemode into Hazard mode you have to place a trigger_finish brush entity, then set the lap amount to 1, this will automatically turn it into Hazard.
It is also recommended to change the prefix of the map(gn_) to (hz_) if it's a hazard mode, this way it can be picked up if it's in the server's map rotation as a Hazard map(will switch to Hazard if there's only 1 active player in the server)
Race mode is also included in the beta version, if the amount of laps of the trigger_finish is more than 1 then race mode will be the active mode. It is recommended to have a map prefix of (rc_) instead of (gn_) like with Hazard(see above).
There are some other entities that you need to be aware of to make a succesfull race map: