using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;
using VRTK;

namespace ProcedureBYQ
{
    /// <summary>
    /// 移动控制器
    /// </summary>
    public class PlayMoveWayController : MonoBehaviour
    {
        private float _minSpeed = -1f;
        private float _maxSpeed = 3;
        public LayerMask notMoveLayer;

        public Transform _cameraEye;
        public Transform maxPoint;
        public Transform minPoint;

        private float xMax;
        private float xMin;
        private float yMax;
        private float yMin;
        private float zMax;
        private float zMin;

        private void Start()
        {
            SetLimit();
        }

        void Update()
        {
            GameObject rightHand = VRTK_DeviceFinder.GetControllerRightHand();
            VRTK_ControllerReference rightHandReference = VRTK_ControllerReference.GetControllerReference(rightHand);

            if (VRTK_SDK_Bridge.GetControllerButtonState(SDK_BaseController.ButtonTypes.Touchpad, SDK_BaseController.ButtonPressTypes.Press, rightHandReference))
            {
                Vector2 axis = VRTK_SDK_Bridge.GetControllerAxis(SDK_BaseController.ButtonTypes.Touchpad, rightHandReference);
                Vector3 moveDir = rightHand.transform.forward * axis.y * _maxSpeed;

                Ray ray;

                if (axis.y > 0) ray = new Ray(_cameraEye.transform.position, rightHand.transform.forward);
                else ray = new Ray(_cameraEye.transform.position, -rightHand.transform.forward);

                //射线检测，移动方向遇到遮罩区以外碰撞器，不移动
                if (Physics.Raycast(ray, 0.3f, notMoveLayer.value)) return;

                this.transform.Translate(moveDir * Time.deltaTime, Space.World);

                LimitMove();
            }
        }

        private void LimitMove()
        {
            transform.position = new Vector3(Mathf.Clamp(transform.position.x, xMin, xMax), Mathf.Clamp(transform.position.y, yMin, yMax), Mathf.Clamp(transform.position.z, zMin, zMax));
        }

        private void SetLimit()
        {
            SetCameraPosLimite(minPoint.position.x, maxPoint.position.x, minPoint.position.y, maxPoint.position.y, minPoint.position.z, maxPoint.position.z);
        }

        private void SetCameraPosLimite(float _xMin, float _xMax, float _yMin, float _yMax, float _zMin, float _zMax)
        {
            xMax = _xMax; xMin = _xMin;
            yMax = _yMax; yMin = _yMin;
            zMax = _zMax; zMin = _zMin;
        }
    }
}