using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityStandardAssets.Characters.FirstPerson;

namespace UnityCommon
{
    /// <summary>
    /// µÚÒ»È˳Æ
    /// </summary>
    public class FPState : CameraState
    {
        MyFirstPersonController fpsController;
        CharacterController characterController;
        private Vector3 initPosition;
        private Vector3 initRotation;
        Transform tfCameraPosition;
        private float rotation_y;
        public FPState(Camera camera, Vector3 position, Quaternion rotation, MyFirstPersonController controller) : base(camera)
        {
            fpsController = controller;
            characterController = fpsController.GetComponent<CharacterController>();

            initPosition = position;
            initRotation = rotation.eulerAngles;

            tfCameraPosition = fpsController.transform.Find("CameraPosition");
            rotation_y = rotation.eulerAngles.y;
            //fpsController.transform.rotation = rotation;
            //fpsController.MouseLookInit();
            //initRotation = new Vector3(m_camera.transform.rotation.eulerAngles.x, m_camera.transform.rotation.eulerAngles.y, 0);
            //fpsController?.MouseLookInit();
        }

        private float oldfarClipPlane = 5000;
        public override void Enter()
        {
            base.Enter();
            EnableFPS = false;

            //Vector3 oldPosition = m_camera.transform.position;
            //Quaternion oldRotation = m_camera.transform.rotation;
            //Transform oldParent = m_camera.transform.parent;
            m_camera.transform.SetParent(null);
            fpsController.transform.position = initPosition;
            fpsController.transform.rotation = Quaternion.Euler(0, rotation_y, 0);
            //m_camera.transform.SetParent(oldParent);
            m_camera.transform.SetParent(tfCameraPosition.parent);
            //m_camera.transform.position = oldPosition;
            //m_camera.transform.rotation = oldRotation;
            oldfarClipPlane = m_camera.farClipPlane;
            m_camera.farClipPlane = 500;
            //cameraCtrl.cameraMain.farClipPlane = 500;
            //initRotation = new Vector3(cameraCtrl.tfCameraMain.rotation.eulerAngles.x, cameraCtrl.tfFPSController.rotation.eulerAngles.y, 0);
            //SetCameraPosition(tfCameraPosition.position, Quaternion.Euler(initRotation), () =>
            //{
            //    EnableFPS = true;
            //    fpsController.MouseLookInit();
            //});
            SetCameraPosition(tfCameraPosition.position, tfCameraPosition.rotation, () =>
            {
                EnableFPS = true;
                fpsController.MouseLookInit();
            });
        }
        private bool EnableFPS
        {
            set
            {
                fpsController.enabled = value;
                characterController.enabled = value;
            }
            get { return fpsController.enabled; }
        }
        public override void Exit()
        {
            base.Exit();
            EnableFPS = false;
            m_camera.farClipPlane = oldfarClipPlane;
        }

        public override void Update()
        {
            base.Update();
            initPosition = fpsController.transform.position;
            initRotation = new Vector3(m_camera.transform.rotation.eulerAngles.x, fpsController.transform.rotation.eulerAngles.y, 0);
        }
    }
}