Rotate a physics body

[CreativeOcclusion]

[Shando]

Hey buddy,

To set a spinning body using Physics (I presume stationary?) you have to add an angular velocity and remove both gravity and angular damping. There is a great example of Turbine Blades towards the bottom of this page .

With regards to collisions, you just use the standard Physics Collision Flags and the physics.setCollision functions afaik.

Hope this helps

Regards

Shando

[SolarPortal]

if you want the physics to rotate, then i wouldn't use the entity.functions for rotations. Instead use angular momentum like Shando has suggested which will then rotate the entity along with it.

[CreativeOcclusion]

[SolarPortal]

[CreativeOcclusion]

This is great for a top spinning on a terrain...Not good indoors...does not stay put...Does not work at all kinematic...Only Dynamic...When player hit it, it goes off down the hall...Does not work with convex or mesh...It just takes off spinning down the hall...It was real fun watching it in the room with all the barrels...They were flying everywhere...Priceless! ...I may just go with something else...Would have been cool though...Thanks...CO

[Shando]

Hi CO,

There's a couple of things you could try:

1) Give the body infinite mass and inertia
2) Give the body infinite mass and limit the rotation to a particular axis

Hope this helps as it would be cool if you could get it working with the built-in Physics

Regards

Shando

[SolarPortal]

[CreativeOcclusion]

[SolarPortal]

ahh np I will add it now

There are the odd commands missing from the list and we will be updating API docs on the new renderer release to ensure all commands are listed

In the meantime, i think Shando wrote a handy lua snippet to spit out all the lua functions available. Perhaps he can post a link to it here

Also, i have just improved the accuracy of positions with the kinematic bodies to stop moving incorrectly so much. Back to the FPS now

Edit: Added

[CreativeOcclusion]

Thanks SP...Great Job!...Go SkyLine!!!

[CreativeOcclusion]

[SolarPortal]

rotate is for the kinematic bodies whereas the setRotation is for the rididbodies. I will need to take a look in source to check if this is correct though. Thanks for pointing this out

[CreativeOcclusion]

Thanks for clearing this up...

[Shando]

[CreativeOcclusion]

Thanks Shando....This is what I needed... ...CO