characterController: NullReference

Unity Engine
1

Keep getting 2 null exceptions one for animator another for charactercontroller. Isn’t consistant, latest one is animator. CharacterController isn’t working.

using UnityEngine;
using System.Collections;
using System;

[RequireComponent(typeof(Animator))]
[RequireComponent(typeof(CharacterController))]

public class PlayerMovement : MonoBehaviour
{
  
    Animator animator;
    CharacterController characterController;

    [System.Serializable]
    public class AnimationSettings
    {
        public string verticalVelocityFloat = "Speed";
        public string horizontalVelocityFloat = "Direction";
        public string JumpBool = "isJumping";
        public string GroundedBool = "isGrounded";
    }

    [SerializeField]
    public AnimationSettings animations;

    [System.Serializable]
    public class PhysicsSettings
    {
        public float gravityModifier = 9f;
        public float baseGravity = 50f;
        public float resetGravityValue = 5f;
    }

    [SerializeField]
    public PhysicsSettings physics;

    [System.Serializable]
    public class MovementSettings 
    {
        public float jumpSpeed = 5f;
        public float jumpTime = 0.25f;
    }

    [SerializeField]
    public MovementSettings movement;

    bool jumping;
    bool resetGravity;
    float gravity;

    void start()
    {
        animator = GetComponent<Animator> ();
        characterController = GetComponent<CharacterController> ();
        SetupAnimator ();
    }


    void Update()
    {
        ApplyGravity ();
        Animate (Input.GetAxis("Vertical"), Input.GetAxis("Horizontal"));
    }

    public void Animate(float Speed, float Direction)
    {
        animator.SetFloat (animations.verticalVelocityFloat, Speed);
        animator.SetFloat (animations.horizontalVelocityFloat, Direction);
        animator.SetBool (animations.GroundedBool, characterController.isGrounded);
        animator.SetBool (animations.JumpBool, jumping);
    }

    public void ApplyGravity()
    {
        if (!characterController.isGrounded)
        {
            if (!resetGravity)
            {
                gravity = physics.resetGravityValue;
                resetGravity = true;
            }
            gravity += Time.deltaTime * physics.gravityModifier;
        }
        else
        {
            gravity = physics.baseGravity;
            resetGravity = false;
        }

        Vector3 gravityVector = new Vector3 ();
  
        if (!jumping)
        {
            gravityVector.y -= gravity;
        }
  
        else
        {
            gravityVector.y = movement.jumpSpeed;
        }

        characterController.Move(gravityVector * Time.deltaTime);
    }

    public void Jump()
    {
        if (jumping)
            return;

        if (characterController.isGrounded)
        {
            jumping = true;
            StartCoroutine (StopJump ());
        }
    }

    IEnumerator StopJump()
    {
        yield return new WaitForSeconds (movement.jumpTime);
        jumping = false;
    }
      

    //Set animator with the child avatar
    public void SetupAnimator()
    {
        Animator[] animators = GetComponentsInChildren<Animator> ();

        if (animators.Length > 0)
        {
            for (int i = 0; i < animators.Length; i++)
            {
                Animator anim = animators [i];
                Avatar av = anim.avatar;

                if (anim != animator)
                {
                    animator.avatar = av;
                    Destroy (anim);
                }
            }
        }
    }
}

2859633--209199--Untitled.png
2859633--209199--Untitled.png1366×768 134 KB

2

You never create an animations instance (= new AnimationSettings()) – also, start needs to be Start with an uppercase S.

3

Glad you noticed that. Works now with capitalizing the S…