This question was closed May 22, 2016 at 12:22 PM by n_armelle for the following reason:

The question is answered, right answer was accepted

Question by n_armelle · May 15, 2016 at 09:05 AM · movement player max magnitude

Calculate max velocity.magnitude

Hello guys, first of all, sorry if i made mistakes, english is not my native language, so if you don't understand tell me, i will try to re-explain it :)

I try to calculate the maximum speed of my player, in the purpose to deal damage when he collides with another object, according to a percentage equal to : (his current speed/maximum speed).

To have the speed, i think to use velocity.magnitude, but i didn't find how to calculate the maximum magnitude of my player.

My player have a rigidbody, with a mass of 50 and a drag of 3. To make my player move, i use Input.GetAxis(X) and Input.GetAxis(Y) i put them in a Vector3 name movement, then i make myPlayerRigidbody.AddForce(movement x Speed, forceMode.Force)

Speed is a public int, currently set to 2500.

Thanks for your help, i already look at a lot of topic yesterday for many hours, and i didn't find a working manner to do what i want.

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n_armelle · May 20, 2016 at 04:25 PM 0

I still need help please ^^

FortisVenaliter · May 20, 2016 at 04:28 PM 1

So, what is the question? You want to determine the maximum speed?

If so, usually, you'll just pick an arbitrary number. But if you want to measure it, I would just print out the velocity.magnitude every frame, get up to speed in the game, and see what is printed.

n_armelle FortisVenaliter · May 20, 2016 at 04:39 PM 0

Yes i want to determine the maximum speed, but with calculation, because if i change drag of mass of my player it will change the max speed

FortisVenaliter n_armelle · May 20, 2016 at 05:29 PM 0

Then you're going to need to run the physics calculations yourself, after quite a bit of research.

Alternately, you can just use flat limits, rather than as a percentage of speed; in which case you don't need to know the absolute maximum.