RichAI velocity.magnitude returns 0 even when moving

#1

Here are some print from an agent moving at a constant speed in a straight line:

image

Im printing this:

 public float GetSpeedPercent()
    {
        return ai.velocity.magnitude / ai.maxSpeed;
    }

Why does velocity.magnitude sometimes return 0 even when moving? It makes it impossible to use the speed to control locomotion animations.

#2

Are you sure you are not rounding that somehow? It looks very much like an integer.

#3

Here is the log when printing just velocity.magnitude:

image

#4

Note that the velocity includes the y component of the velocity (i.e. gravity). For locomotion, you probably want to only use the x and z components of the velocity.

#5

Thanks, I did try that too but doesnt fix the issue Debug.Log(new Vector3(ai.velocity.x, 0, ai.velocity.z));:

image

Its ok to make this check in Update()?

#6

Are you sure you are not disabling/enabling the component or something?
The RichAI component typically has an acceleration and slowdown period, which I cannot see in your data.

#7

Im just grabbing this log from when speed appears constant, acceleration seems to work fine and print what Id expect, never 0.

#8

Might have found the issue, im setting transform.LookAt(lookAtTarget); which worked fine with Unity Navmesh agent, but seems it does something weird to RichAI, might have to set LookAt for Geometry only isntead.

1 Like
#9

I did some investigating, and I did actually replicate this.
When a rigidbody is attached, the velocity property can get messed up.

I will include a fix for this in the next update.