using System.Collections;
using UnityEngine;

public class KitchenGun : MonoBehaviour
{
    // The shot projectiles
    public GameObject projectilePrefab;
    // Time between shots, game needs to be restarted to take effect
    public float shotInterval = 1f;
    // Speed of projectiles
    public Vector2 shotSpeed = new Vector2(1f, 0f);
    // Smallest step size for shot speed
    private short shotSpeedStepSize = 50;

    // Start is called before the first frame update
    void Start()
    {
        InvokeRepeating("RecurringBang",0f,shotInterval);
    }

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

    void RecurringBang()
    {
        StartCoroutine("Bang");
    }

    private IEnumerator Bang()
    {
        Transform t = transform;
        Vector3 position = t.position;
        
        // create projectile
        GameObject projectile = Instantiate(projectilePrefab, 
                                            position, 
                                            t.rotation);
        // determine correct force vector
        Vector2 force = shotSpeed;
        if (t.localScale.x < 0) {
            force *= -1;
        }
        
        force *= shotSpeedStepSize;
        
        // add force to projectile
        Rigidbody2D pBody = projectile.GetComponent<Rigidbody2D>();
        pBody.AddRelativeForce(force);

        yield return new WaitForSeconds(shotInterval);
        Debug.Log("Bang!");
        
        Destroy(projectile);
    }
}