using UnityEngine;
using UnityEngine.UI;

public class PlayerRotate45Shoot2D : MonoBehaviour
{
    public GameObject playerImg;
    public GameObject bullet;
    public GameObject bulletPos;
    public float playerSpeed = 6.0f;
    public float bulletSpeed = 400.0f;
    Rigidbody2D rb;
    Vector2 movement;

    void Start()
    {
        rb = GetComponent<Rigidbody2D>();
    }

    void Update()
    {
        movement.x = Input.GetAxisRaw("Horizontal");
        movement.y = Input.GetAxisRaw("Vertical");

        if (movement.x == 0 && movement.y > 0)
        {
            playerImg.transform.rotation = Quaternion.Euler(0, 0, 90);
        }
        else if (movement.x == 0 && movement.y < 0)
        {
            playerImg.transform.rotation = Quaternion.Euler(0, 0, -90);
        }
        else if (movement.x > 0 && movement.y == 0)
        {
            playerImg.transform.rotation = Quaternion.Euler(0, 0, 0);
        }
        else if (movement.x < 0 && movement.y == 0)
        {
            playerImg.transform.rotation = Quaternion.Euler(0, 0, 180);
        }
        else if (movement.x > 0 && movement.y > 0)
        {
            playerImg.transform.rotation = Quaternion.Euler(0, 0, 45);
        }
        else if (movement.x > 0 && movement.y < 0)
        {
            playerImg.transform.rotation = Quaternion.Euler(0, 0, -45);
        }
        else if (movement.x < 0 && movement.y > 0)
        {
            playerImg.transform.rotation = Quaternion.Euler(0, 0, 135);
        }
        else if (movement.x < 0 && movement.y < 0)
        {
            playerImg.transform.rotation = Quaternion.Euler(0, 0, -135);
        }

        if (Input.GetButtonDown("Fire1"))
        {
            GameObject tmp = Instantiate(bullet, bulletPos.transform.position, Quaternion.Euler(0, 0, 0));
            tmp.transform.rotation = Quaternion.Euler(0, 0, playerImg.transform.rotation.eulerAngles.z);
            Rigidbody2D tmpRB = tmp.GetComponent<Rigidbody2D>();
            Destroy(tmp, 5f);

            if (playerImg.transform.rotation.eulerAngles.z == 0)
            {
                tmpRB.AddForce(new Vector2(5, 0) * bulletSpeed);
            }
            else if (playerImg.transform.rotation.eulerAngles.z == 180)
            {
                tmpRB.AddForce(new Vector2(-5, 0) * bulletSpeed);
            }
            else if (playerImg.transform.rotation.eulerAngles.z == 90)
            {
                tmpRB.AddForce(new Vector2(0, 5) * bulletSpeed);
            }
            else if (playerImg.transform.rotation.eulerAngles.z == 270)
            {
                tmpRB.AddForce(new Vector2(0, -5) * bulletSpeed);
            }
            else if (playerImg.transform.rotation.eulerAngles.z == 45)
            {
                tmpRB.AddForce(new Vector2(2.5f, 2.5f) * bulletSpeed);
            }
            else if (playerImg.transform.rotation.eulerAngles.z == -45)
            {
                tmpRB.AddForce(new Vector2(2.5f, -2.5f) * bulletSpeed);
            }
            else if (playerImg.transform.rotation.eulerAngles.z == 135)
            {
                tmpRB.AddForce(new Vector2(-2.5f, 2.5f) * bulletSpeed);
            }
            else if (playerImg.transform.rotation.eulerAngles.z == -135)
            {
                tmpRB.AddForce(new Vector2(-2.5f, -2.5f) * bulletSpeed);
            }
        }
    }

    void FixedUpdate()
    {
        rb.MovePosition(rb.position + movement * playerSpeed * 0.02f);
    }
}