using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class PlayerController : MonoBehaviour
{
    public SCR_Fireball Fireball;

    //Access the Players Rigidbody
    public Rigidbody playerRigidbody;

    //Hitpoints and Manapoints
    public float p_MaxHitpoints = 100;
    public float p_CurrentHitpoints;
    public Text HealthText;
    public float p_MaxManapoints = 100;
    public float p_CurrentManapoints;
    public Text ManaText;
    public bool TakingDamage = false;


    //Set players Jump Heigh
    public float jumpForce = 100;

    //Set the players movement speed
    public float movementSpeed = 5;

    //Check if the player is touching the ground
    private bool grounded = true;


    //Is scepter equiped
    public bool SceptorEquip = true;
    public GameObject Scepter;

    //Is crossbow Equiped
    public bool CrossbowEquip = false;
    public GameObject Crossbow;

    //Damage Over Time Coroutine
    private IEnumerator DamageOverTime()
    {
        while (TakingDamage == true)
        {

            p_CurrentHitpoints -= 5;
            yield return new WaitForSeconds(2.0f);
            TakingDamage = false;
        }

    }

    // Use this for initialization
    void Start ()
    {
        //Set hitpoints and Manapoints
        p_CurrentHitpoints = p_MaxHitpoints;
        p_CurrentManapoints = p_MaxManapoints;

        //Disable Cursor in-game
        Cursor.lockState = CursorLockMode.Locked;
        Scepter.gameObject.SetActive(true);
        Crossbow.gameObject.SetActive(false);
    }

	// Update is called once per frame
	void Update ()
    {


        //Enable Cursor on button press
        if (Input.GetKeyDown("escape"))
            Cursor.lockState = CursorLockMode.None;

        //Hit points and Mana points

        HealthText.text = "" + p_CurrentHitpoints;
        ManaText.text = "" + p_CurrentManapoints;


        //Movement
        float horizontalAxis = Input.GetAxis("Horizontal");
        float verticalAxis = Input.GetAxis("Vertical");

        Vector3 playerRight = transform.right;
        // Players local forward axis
        Vector3 playerForward = transform.forward;

        // Setting velocity to the local axis
        Vector3 xVelocity = transform.right * horizontalAxis;

        // Change value for forward and back movement.
        Vector3 zVelocity = transform.forward * verticalAxis;
        Vector3 currentTotalVelocity = xVelocity + zVelocity;

        // Normalized vectors reduce lenght to 1 to prevent a faster speed moving diagonally
        currentTotalVelocity = currentTotalVelocity.normalized * movementSpeed;
        currentTotalVelocity.y = playerRigidbody.velocity.y;
        playerRigidbody.velocity = currentTotalVelocity;

        //Get input for Mouse X and Y
        float mouseX = Input.GetAxis("Mouse X");
        float mouseY = Input.GetAxis("Mouse Y");

        // Change Local Euler Angles on key press
        Vector3 currentRotation = transform.localEulerAngles;

        // Rotate from MouseX input
        if (Input.GetAxis("Mouse X") < 0)
        {
            currentRotation.y -= 3;
        }

        if (Input.GetAxis("Mouse X") > 0)
        {
            currentRotation.y += 3;
        }
        transform.localEulerAngles = currentRotation;

        //Mouse Y can rotate all the way around.
        /*
        if (Input.GetAxis("Mouse Y") < 0)
        {
            currentRotation.x += 3;
        }

        if (Input.GetAxis("Mouse Y") > 0)
        {
            currentRotation.x -= 3;
        }
        transform.localEulerAngles = currentRotation;

    */
        //Jump
        if (Input.GetKeyDown("space"))
        {
            if (grounded)
            {
                playerRigidbody.AddForce(0, jumpForce, jumpForce);
                grounded = false;
            }

        }


        //Weapon Swap for Scepter
        if(Input.GetKeyDown("1"))
        {
            Scepter.gameObject.SetActive(true);
            SceptorEquip = true;
            Crossbow.gameObject.SetActive(false);
            CrossbowEquip = false;
        }
        //Weapon Swap for Crossbow
        if (Input.GetKeyDown("2"))
        {
            Scepter.gameObject.SetActive(false);
            SceptorEquip = false;
            Crossbow.gameObject.SetActive(true);
            CrossbowEquip = true;
        }
        //Death
        if (p_CurrentHitpoints <= 0)
        {
            Destroy(gameObject);
        }
    }

    private void OnCollisionEnter(Collision collision)
    {
        if (collision.transform.tag == "Ground")
        {
            TakingDamage = false;
            grounded = true;
            StopCoroutine(DamageOverTime());

        }

        if (collision.transform.tag == "Enemy")
        {
            TakingDamage = true;
            StartCoroutine(DamageOverTime());
        }

        if (collision.transform.tag == "Acid")
        {
            TakingDamage = true;
            StartCoroutine(DamageOverTime());

        }
    }


}