using UnityEngine;
using Valve.VR;

public class PlayerController : MonoBehaviour
{
    public LayerMask Ground;
    public LayerMask NoGoArea;
    public float Speed = 1.0f;
    public Material BodyMat;

    public SteamVR_Action_Boolean MovePress = null;
    public SteamVR_Action_Vector2 MoveDirection = null;

    private RaycastHit hit;
    private Camera VRCam;
    private GameObject Body;


    void Start()
    {
        VRCam = GetComponentInChildren<Camera>();

        Body = GameObject.CreatePrimitive(PrimitiveType.Capsule);
        Body.transform.parent = transform;
        Body.name = "Body";
        Body.layer = 10;
        Body.tag = "PlayerBody";
        MeshRenderer mr = Body.GetComponent<MeshRenderer>();
        mr.material = BodyMat;
        //Nur für Maze:
        //Body.AddComponent<SmileyTrigger>();
        //Body.AddComponent<Fluorescein>();
        //Body.AddComponent<TurnAround>();

        gameObject.AddComponent<FallDownTrigger>();
    }


    void Update()
    {
        CheckGroundHeight();

        // If button pressed
        if (MovePress.state)
        {
            CalculateMovement();
        }
    }


    private void CheckGroundHeight()
    {
        if (Physics.Raycast(VRCam.transform.position, Vector3.down, out hit, Mathf.Infinity, Ground))
        {
            transform.position = new Vector3(transform.position.x, hit.transform.position.y, transform.position.z);
            Body.transform.localScale = new Vector3(0.5f, Vector3.Distance(VRCam.transform.position, hit.point) / 2, 0.5f);
            Body.transform.position = new Vector3(hit.point.x, hit.point.y + Vector3.Distance(VRCam.transform.position, hit.point) / 2, hit.point.z);
        }
        else
        {
            transform.Translate(9.81f * Time.deltaTime * Vector3.down);
        }

    }


    private void CalculateMovement()
    {
        // Figure out movement orientation
        Vector3 orientationEuler = new Vector3(0, VRCam.transform.eulerAngles.y, 0);
        Quaternion orientation = Quaternion.Euler(orientationEuler);
        Vector3 movement = Vector3.zero;


        if (MovePress.state)
        {
            movement += orientation * (MoveDirection.axis.x * Vector3.right);
            movement += orientation * (MoveDirection.axis.y * Vector3.forward);
        }


        // Prevent walking trhrough walls
        Ray eyeRay = new Ray(VRCam.transform.position, movement);
        Ray kneeRay = new Ray(VRCam.transform.position - Vector3.up, movement);

        if (!Physics.Raycast(eyeRay, out RaycastHit eyeHit, 0.5f, NoGoArea))
        {
            if (!Physics.Raycast(kneeRay, out RaycastHit kneeHit, 0.5f, NoGoArea))

                //Apply
                transform.Translate(movement * Speed * Time.deltaTime);
        }
    }
}