So I saw push used in a map and thought it was pretty cool, so I'm currently working to implement a use for it into my map. However, it doesn't seem to be working on the cube I have the player spawn. I thought maybe the cube was too heavy, so I put in a gravity trigger and set it to 0, but that's not working either.

Are there prerequisites to using these triggers? Couldn't find any such information in the wiki.

Also, I have it the Flag marked to affect only physics objects.

The Trigger_push needs to have a flag checked towards an phys object, that could be the problem.

I don't think trigger_gravity works at 0

trigger_gravity wouldn't actually fix the problem either. Although gravity is a force in real-life, it is more of a simulated resistance in Source and wouldn't actually make the box "lighter" and easier to move like IRL zero gravity would be.

Mmkay, that does make sense.

So what about the push trigger? I am super stumped as to why it's not affecting the box.

MrTwoVideoCards wrote:
The Trigger_push needs to have a flag checked towards an phys object, that could be the problem.

Tick "Physics Objects" under the flags tab of the trigger_push and make sure there is enough push force.

Reverend Protocol wrote:
Also, I have it the Flag marked to affect only physics objects.

First post.

You might want to adjust the trigger_push, and make sure its On, and then have it going i a direction, around a 250 push should be good, I found that 205 makes it float nicely.

Does trigger_push negate the effect of gravity on an object? Say, if the box is flying to the left, is it also going to have some downward pull on it?

Yeah. As I said, gravity in source is a simulated force, not something that is actually applied to things, and as such there is no way to negate it. Think of trigger_push and trigger_vphysics_motion as a gust of wind or something similar to that - they are constant and can only apply, not alter, forces.

You could try changing it with the sv_gravity console command, although you would have to switch on cheats for it to work, but then they could be switched off afterwards.

msleeper wrote:
wouldn't actually make the box "lighter" and easier to move like IRL zero gravity would be.

Gonna have to stop you right there. Gravity doesn't make things hard to move. Mass (and therefore inertia) does. The direct correlation between mass and inertia and gravity is interesting (the more of one, the more of the other), but not pertinent.