Zero G flight?
So while I'm investigating this as a possible solution to another problem I'm having, I was unable to find anything on it through the forums and thought I'd ask.
Is there any way to give the player flying controls to let them move around a simulated zero-g environment? Or to get something like Observer controls, but as a player?
Thanks very much for any help!
The only way I could think of is either using a perfectly clear, fogless, and ripple-less water texture through the entire map, or you could turn on noclip and then put trigger_catapults inside the walls, launching you back into the map at a very low speed.
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You may be able to create a giant trigger_gravity around the chamber with the gravity set to the lowest you can, and then put a bunch of trigger_pushs around the player, each turning on and off with a game_ui. You'll also have to somehow move those triggers with the player, so maybe a logic_measuremovement to do that. Honestly, I have barely any clues on how to use those entities, so hopefully another user will know what I'm trying to say and say it in an understandable way. :/
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A trigger_gravity, to my knowledge, allows you to invert gravity if you're in the trigger, but making it have zero gravity is impossible with that trigger.
(double post mistake)
This is actually working pretty well so far! (Though rather than the trigger_gravity, I used a phys_thruster pointed up to directly offset gravity) I managed to create a func_physbox, then use a set of phys_thrusters controlled by a game_ui to get it to move around. Forward, back, strafe, all work perfectly... but I'm getting stuck on the looking.
I have thrusters that can turn it in all directions properly, but how to I fire them? How do I get it to turn with the player's mouse input? I tried using all of the different Axis commands from the game_ui as a SetValueCompare input into a logic_compare, but that didn't seem to work. Any thoughts?
EDIT: I've now seen multiple tutorials that do this via the XAxis and YAxis inputs from the game_ui into compares just like I have, but mine aren't working at all, and I can't seem to figure out why. It's quite frustrating. 
Use a point_viewcontrol, that'll let you lock the player in a position while allowing them to look around.
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I'm not sure I understand... the point_viewcontrol is for locking the player's view, correct? So they wouldn't be able to look around, because their view would be locked to the point_viewcontrol camera. Does it need to be set up in a certain way?
EDIT: After attempting it, I think that mapped the XAxis and YAxis inputs from the game_ui to my WASD keyboard controls, meaning I can't strafe... I thought the Axis inputs were from the mouse? : Is there a way I can get my game_ui movement controls on WASD, and the Axis inputs from the mouse at the same time?
Sorry, I meant a point_viewproxy. It's similar, but lets you look around. It's used in the tube ride scene and the hotel room in singleplayer.
[spoiler]- BEE2 Addons | (BEE2)
- Hammer Addons
Maps:
- Crushed Gel
- Gel is Not Always Helpful[/spoiler]
I actually tried a point_viewproxy too, in case you did. 
However, I got essentially the same result - WASD was now giving Axis input and controlling my look, and my mouse did nothing. Is there something in the setup that I'm just missing? It doesn't seem like the way that actor should work.
EDIT: Okay, I didn't have the info_target for the Proxy Entity set up properly. So now I can look around. Unfortunately, I still can't figure out how to make that looking control my thrusters. XAxis and YAxis are still only responding to my WASD controls. So how do I get mouse input to actually fire off these thrusters?