CharacterController.SimpleMove

Description

Moves the character with speed.

Velocity along the y-axis is ignored. Speed is in units/s. Gravity is automatically applied. Returns true if the character is grounded. It is recommended that you make only one call to Move or SimpleMove per frame.

using UnityEngine;

[RequireComponent(typeof(CharacterController))]
public class CharacterMover : MonoBehaviour
{
    private float speed = 3.0f;
    private float rotationSpeed = 90.0f; // degrees per second

    private CharacterController characterController;

    void Start()
    {
        characterController = GetComponent<CharacterController>();
    }

    void Update()
    {
        float horizontalInput = Input.GetAxis("Horizontal");
        float verticalInput = Input.GetAxis("Vertical");

        // Rotate character
        transform.Rotate(Vector3.up, horizontalInput * rotationSpeed * Time.deltaTime);

        // Move character
        Vector3 moveDirection = transform.forward * verticalInput * speed;
        
        characterController.SimpleMove(moveDirection);
    }
}