using UnityEngine;

namespace ShiningGames.Prototyping
{
	[RequireComponent(typeof(CharacterController))]
	public class FPSController : MonoBehaviour
	{
		public float movementSpeed = 5f;

		public float mouseSensitivity = 2f;

		public float jumpForce = 7f;

		public float crouchHeight = 0.5f;

		public float standHeight = 2f;

		public float crouchSpeed = 2f;

		private CharacterController characterController;

		private Vector3 moveDirection;

		private bool isCrouching;

		private Camera playerCamera;

		private float originalCameraHeight;

		private void Start()
		{
			characterController = GetComponent<CharacterController>();
			playerCamera = Camera.main;
			originalCameraHeight = playerCamera.transform.localPosition.y;
			Cursor.lockState = CursorLockMode.Locked;
			Cursor.visible = false;
		}

		private void Update()
		{
			MovePlayer();
			LookAround();
			Jump();
		}

		private void MovePlayer()
		{
			float axis = Input.GetAxis("Horizontal");
			float axis2 = Input.GetAxis("Vertical");
			Vector3 vector = base.transform.forward * axis2;
			Vector3 vector2 = base.transform.right * axis;
			moveDirection = (vector + vector2).normalized * movementSpeed;
			if (!characterController.isGrounded)
			{
				moveDirection.y += Physics.gravity.y * Time.deltaTime;
			}
			characterController.Move(moveDirection * Time.deltaTime);
		}

		private void LookAround()
		{
			float num = Input.GetAxis("Mouse X") * mouseSensitivity;
			float num2 = Input.GetAxis("Mouse Y") * mouseSensitivity;
			base.transform.Rotate(Vector3.up * num);
			playerCamera.transform.Rotate(Vector3.left * num2);
		}

		private void Jump()
		{
			if (characterController.isGrounded && Input.GetButtonDown("Jump"))
			{
				moveDirection.y = jumpForce;
			}
		}

		private void Crouch()
		{
			if (Input.GetButtonDown("Crouch"))
			{
				isCrouching = !isCrouching;
				if (isCrouching)
				{
					characterController.height = crouchHeight;
					playerCamera.transform.localPosition = new Vector3(playerCamera.transform.localPosition.x, originalCameraHeight - crouchSpeed, playerCamera.transform.localPosition.z);
				}
				else
				{
					characterController.height = standHeight;
					playerCamera.transform.localPosition = new Vector3(playerCamera.transform.localPosition.x, originalCameraHeight, playerCamera.transform.localPosition.z);
				}
			}
		}
	}
}