Playmaker Forum
PlayMaker Help & Tips => PlayMaker Help => Topic started by: daniellogin on August 21, 2018, 03:45:12 PM
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I'm making a rocket that has a force applied to it to fly forward. Because it has a front and back end (unlike a sphere or something) I want it to update the rotation so the tip is always facing the direction of travel.
How do I do this?
My question isn't so much on rotating, I know about that, what I'm really asking is how I get the variable that matches the direction of travel to tell it to look at.
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Hi,
get the velocity of your object, it contains the direction of the travel. you can use GetSpeed if it's a RigidBody, or you can use GetGameObjectSpeed from the Ecosystem, if it's a non rigidbody object.
use that as the vector to point your rocket to its own trajectory.
Bye,
Jean
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Hi,
get the velocity of your object, it contains the direction of the travel. you can use GetSpeed if it's a RigidBody, or you can use GetGameObjectSpeed from the Ecosystem, if it's a non rigidbody object.
use that as the vector to point your rocket to its own trajectory.
Bye,
Jean
I've had a look but the Get Speed action produces a Float variable. I'm not sure how I'm meant to use that as a vector 3 since it's a single number?
EDIT: Oh I think you meant Get Velocity. I'm trying that now
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Oh my god, I think I tried EVERY FRICKEN COMBINATION YOU CAN IMAGINE for the Get Velocity and Smooth Look At.... but I finally got it right. I also had to rotate my game object/child objects (well at least I think I had to...).
So for anyway, thanks to @jeanfabre for the help.
For anyone else who wants to know the full details, it goes like this:
* Get Velocity
> of rocket
> gives you vector variable
* Smooth Look At
> rocket is gameobject
> Up Vector set to the vector variable
> Keep Vertical enabled
> Finish Tolerance set to none
WRONG
See another post below for correct answer. I don't know how I thought it does, but the above DOES NOT work.
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Hi,
Thanks for the details :) indeed you need to fiddle with all these options to get things right. I am glad you got it in the end, never giving up is the key!
Bye,
Jean
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ARH
Just so I can pull all of my hair out, I just did another hour + of trying every single combination of more actions!
My original answer was wrong. Didn't work. I don't know how I thought it worked but it doesn't.
This time it does.....
*Get Velocity
> rocket gameobject
> save the vector as variable
> space Self (it almost worked but spun out of control on World like an unstable rocket)
> every frame of course
* Rotate
> rocket gameobject
> vector is the one saved by get velocity
> leave X Y and Z and 'None'
> Space is Self
> Every Frame
This works. It took way too long for me to figure this out but dammit it works.