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Question by EvilSquid · Aug 18, 2013 at 12:49 PM · c#localglobaladdrelativeforce

AddRelativeForce isn't staying 'relative'.

Whenever I use AddRelativeForce, it works if I'm facing the direction in which it's towards, but if I turn 180 degrees, eg. I travel back the way I came, it doesn't stay relative. It continues to push me in the direction it was.

 rigidbody.AddRelativeForce(-Vector3.forward * 150);//Force pushes forwards

Thanks

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avatar image sparkzbarca · Aug 18, 2013 at 07:42 PM 0
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lets see your object/project

I mean are you using that to go fowards because

vector3.forward should go forwards.

-vector3.forward should go backwards which tells me if its going forwards you messed up your object rotation in blender or whatever and you need to get that fixed for it to work.

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Answer by Adamcbrz · Aug 18, 2013 at 01:31 PM

You are use a world relative Value with Vector3.forward you might want to use transform.forward instead.

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avatar image EvilSquid · Aug 18, 2013 at 01:37 PM 0
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I've tried that but now it's just adding a force that flips it over

avatar image Owen-Reynolds · Aug 18, 2013 at 01:59 PM 0
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AddRelativeForce is like Transform.Translate. They both take Vector3 forward/right and convert to transform.forward/right for you (see the docs.)

Say an object is rotated 30 degrees. AddRelForce(trans.forward) would double-correct and push at 60 degrees.

avatar image EvilSquid · Aug 18, 2013 at 02:04 PM 0
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Yes, this is definitely what's happening. I've tried many different things and still the same thing happens. All I want is a force to push along the object's local z axis no matter where it's facing...

avatar image robertbu · Aug 18, 2013 at 03:19 PM 0
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@EvilSquid - you are mixing up the meaning of local and world. Try:

 rigidbody.AddForce(-Vector3.forward * 150);
avatar image EvilSquid · Aug 18, 2013 at 06:14 PM 0
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Nope, still the same thing is happening. Still continues pushing in the same direction.

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