FORT-BO/Assets/CONTENT/Game/Scripts/Player/PlayerController.cs

using Unity.Netcode;
using UnityEngine;
using UnityEngine.InputSystem;

[RequireComponent(typeof(CharacterController))]
public sealed class PlayerController : NetworkBehaviour, IPlayerSystem
{
    [Header("Movement")]
    [SerializeField, Min(0.1f)] private float walkSpeed = 4.5f;
    [SerializeField, Min(0.1f)] private float sprintSpeed = 7f;

    [Header("Vertical movement")]
    [SerializeField, Min(0.1f)] private float jumpHeight = 1.4f;
    [SerializeField, Min(0.1f)] private float gravity = 20f;

    [Header("External impulses")]
    [SerializeField, Min(0.1f)] private float impulseDamping = 9f;

    private CharacterController characterController;
    private Vector3 verticalVelocity;
    private Vector3 externalImpulseVelocity;
    private bool isInitialized;

    public Vector3 ExternalImpulseVelocity => externalImpulseVelocity;

    public void Initialize(PlayerFacade facade)
    {
        characterController = GetComponent<CharacterController>();
        isInitialized = characterController != null;
    }

    public void SubmitMovement(Vector2 moveInput, bool wantsToSprint, bool wantsToJump)
    {
        if (!isInitialized || !IsOwner)
            return;

        SimulateMovement(moveInput, wantsToSprint, wantsToJump);
    }

    public void SubmitYaw(float yawDelta)
    {
        if (!isInitialized || !IsOwner)
            return;

        transform.Rotate(0f, yawDelta, 0f, Space.Self);
    }

    public void AddImpulse(Vector3 velocityChange)
    {
        if (!isInitialized || !IsOwner)
            return;

        externalImpulseVelocity += velocityChange;
    }

    private void SimulateMovement(Vector2 moveInput, bool wantsToSprint, bool wantsToJump)
    {
        if (moveInput.sqrMagnitude > 1f)
            moveInput.Normalize();

        if (characterController.isGrounded && verticalVelocity.y < 0f)
            verticalVelocity.y = -2f;

        if (wantsToJump && characterController.isGrounded)
            verticalVelocity.y = Mathf.Sqrt(jumpHeight * 2f * gravity);

        verticalVelocity.y -= gravity * Time.deltaTime;

        float speed = wantsToSprint ? sprintSpeed : walkSpeed;
        Vector3 horizontalDirection = transform.right * moveInput.x + transform.forward * moveInput.y;
        characterController.Move(
            (horizontalDirection * speed + verticalVelocity + externalImpulseVelocity) *
            Time.deltaTime);
        externalImpulseVelocity = Vector3.MoveTowards(
            externalImpulseVelocity,
            Vector3.zero,
            impulseDamping * Time.deltaTime);
    }
}