How reliable are isGrounded checks?

Questions & Answers
1

Do they sometimes randomly trigger off when the player moves?

How does the standard asset “CharacterMotor” apply gravity to the player?

2

I found it not to be reliable as I am using a mechicam animation system for a third person shooter and opted towards a character controller for my player rather than a rigidbody after much trial and error with that. I found that my CharacterController.isGrounded did not update after it was marked true as i always start my characters in the air, so I made my own isgrounded application and here is the code for it.

private Vector3 grav;
private  CollisionFlags collisionFlags;
private float gravity = 9.8f;
	
void Update () {
    if (IsGrounded()) {
	grav.y += -gravity * Time.deltaTime;
	cc.Move (grav * Time.deltaTime);
    } else {
	grav = new Vector3(0,0,0);
    }
}

public bool IsGrounded () {
    return (CollisionFlags.CollidedBelow) != 0;
}

It is a bit jittery with my character going up and down hills but that requires some smoothing out which I haven’t gotten to yet as I made this script today. Bonus points for not using a RayCast system? Hope it helps :slight_smile: