Gravity !

phoenixbbs

Would it be possible to make gravity a variable in FP, it would allow designers to give mods / games a different feel.

I suppose the ideal would be to allow variable gravity - possibly even from several sources, i.e. 3 "gravitators" in the same room affecting how you can fly around it.

Soul_Rider

I haven't dug too far in, but with a component system, this should be fairly easy to make.

I will be digging into the code more, and probably producing some custom bits over the coming weeks and months as I get more familiar with the code.

Or you could always learn to do it yourself No time like the present when it comes to learning new skills hahaha

BeigeAlert

It seems to me that you will have full control over such things.

MurphyIdiot

Already possible!

Warning: Old video!

Collision components have a gravity setting when physics is enabled and there are ways to adjust gravity in movement code as well.

coolitic

Now, can we make planets that rotate around a sun or black hole? (obviously quite a bit later)

Remember, in a game like this, you want to make everything possible, ie: needs a large scope and such

Soul_Rider

But with it being so openly moddable, the community, particularly the early community, will hopefully produce a lot of content.

If you are thinking about playing with making games, I'd certainly suggest buying this now, it's a great entry point.

If you are looking for ready made games to play, give it a couple of months to let the modders get a feel for the game and engine.

Although I expect to see new maps being created quite quickly, 'games' will take a bit longer.

HeadClot

Can We toggle gravity (to a Zero G State) in the game world if certain objects are destroyed or not present?

Just curious,

- HeadClot

Max

HeadClot wrote: »

Can We toggle gravity (to a Zero G State) in the game world if certain objects are destroyed or not present?

Yes it would only take a couple of lines of Lua to do this. There's a function World_SetGravity to change the global gravity.

Kalopsia

How about an entity that would change the direction of gravity? E.g when switched, the wall or ceiling become the floor.

BeigeAlert

Kalopsia wrote: »

How about an entity that would change the direction of gravity? E.g when switched, the wall or ceiling become the floor.

If the functionality doesn't already exist, you'd be able to mod this in, for sure.

What'd be REALLY cool is the ability to set localized gravity directions, like find the nearest surface point on a special mesh, and set the gravity vector to the normal vector of that point. You could have sphere-shaped levels, or re-create THAT scene from Inception. Not sure how well that would tie in with the physics system in the game... but at least for player movement you'd be able to do this.

dushan

For non-uniform gravity you'd want to set the global gravity to 0 and manually apply force to each dynamic body every frame based on their position. This could definitely be prototyped in Lua with what we have already - it wouldn't be very efficient but if it's popular we could drop a more general gravity system into the engine.

As far as physics is concerned, gravity is just another force pulling on a body. Things get a bit more hairy when it comes to player characters. For convenience there are probably few places assuming that Y is up in the controller code and the animation won't be looking too good with changing gravity.

BeigeAlert

dushan wrote: »

For non-uniform gravity you'd want to set the global gravity to 0 and manually apply force to each dynamic body every frame based on their position. This could definitely be prototyped in Lua with what we have already - it wouldn't be very efficient but if it's popular we could drop a more general gravity system into the engine.

As far as physics is concerned, gravity is just another force pulling on a body. Things get a bit more hairy when it comes to player characters. For convenience there are probably few places assuming that Y is up in the controller code and the animation won't be looking too good with changing gravity.

Ah, thanks. That's what I was wondering. I figured it would be easy enough to make players react to different "gravity", but as for actual physics stuff, I wasn't sure how flexible it would be in game.

clankill3r

@‌dushan

Things get a bit more hairy when it comes to player characters. For convenience there are probably few places assuming that Y is up in the controller code and the animation won't be looking too good with changing gravity.

Can those places be accessed by us? I'm working from time to time on a design document about a game with arbitrary gravity for over 7 years now.
I have a lot of different mechanics to test and FP seems to be heading in a way for 'rapid' prototyping.
Without it FP is still awesome! But with the possibility for arbitrary gravity I will so jump into FP