Player Movement Code

Current Version: V0.03

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PlayerMovement : MonoBehaviour
{
    [Header("Movement")]
    private float moveSpeed;
    public float walkSpeed;
    public float sprintSpeed;

    public float groundDrag;

    [Header("GroundCheck")]
    public float playerHeight;
    public LayerMask whatIsGround;
    bool grounded;

    [Header("Jumping")]
    public float jumpForce;
    public float jumpCooldown;
    public float airMultiplier;
    bool readyToJump;

    [Header("Keybindings")]
    public KeyCode jumpKey = KeyCode.Space;
    public KeyCode sprintKey = KeyCode.LeftShift;

    public Transform orientation;

    float horizontalInput;
    float verticalInput;

    Vector3 moveDirection;

    Rigidbody rb;

    public MovementState state;

    public enum MovementState
    {
        walking,
        sprinting,
        air,
    }

    private void Start()
    {
        //Assign rigidbody and freeze its rotaion
        rb = GetComponent<Rigidbody>();
        rb.freezeRotation = true;

        readyToJump = true;
    }
    private void Update()
    {
        //Call Functions
        MovementInputs();
        SpeedControl();
        StatesHandler();
        //DynamicFOV();

        //Check if player is on ground / Raycast down from half the players height (0.5 in this case) + little extra (0.2)
        grounded = Physics.Raycast(transform.position, Vector3.down, playerHeight * 0.5f + 0.2f, whatIsGround);

        //Handle drag
        if (grounded)
        {
            rb.drag = groundDrag;
        }
        else
        {
            rb.drag = 0;
        }
    }

    private void FixedUpdate()
    {
        //Call MovePlayer Function
        MovePlayer();
    }
    private void MovementInputs()
    {
        //Assign vertical and horizontal inputs
        horizontalInput = Input.GetAxisRaw("Horizontal");
        verticalInput = Input.GetAxisRaw("Vertical");
    }

    private void MovePlayer()
    {
        //Calculate the move direction / Walk in the direction your looking
        moveDirection = orientation.forward * verticalInput + orientation.right * horizontalInput;

        //On ground - Moves the player forward based on the moveSpeed number * 10
        if (grounded)
        {
            rb.AddForce(moveDirection.normalized * moveSpeed * 10f, ForceMode.Force);
        }
        else if (!grounded)
        {
            rb.AddForce(moveDirection.normalized * moveSpeed * 10f * airMultiplier, ForceMode.Force);
        }
    }

    private void SpeedControl()
    {
        Vector3 flatVel = new Vector3(rb.velocity.x, 0f, rb.velocity.z);

        //Limit velocity
        if (flatVel.magnitude > moveSpeed) //If you go faster than moveSpeed
        {
            Vector3 limitedVel = flatVel.normalized * moveSpeed; //Calculate max vel
            rb.velocity = new Vector3(limitedVel.x, rb.velocity.y, limitedVel.z); //Apply it
        }
    }

    private void StatesHandler()
    {
        //Sprinting - If sprint key is pressed State = Sprinitng
        if (grounded && Input.GetKey(sprintKey))
        {
            state = MovementState.sprinting;
            moveSpeed = sprintSpeed;
        }
        //Otherwise state = walking
        else if (grounded)
        {
            state = MovementState.walking;
            moveSpeed = walkSpeed;
        }
    }
}