unity-atoms/Examples/Assets/InfinityWaves/Player/PlayerShooting.cs

using UnityAtoms.BaseAtoms;
using UnityEngine;

public class PlayerShooting : MonoBehaviour
{
    [SerializeField]
    private GameObject _projectile;

    [SerializeField]
    private StringConstant _playerTag;


    void Update()
    {
        var shootDirection = Vector3.zero;
        var rot = Quaternion.identity;

        if (Input.GetKeyDown(KeyCode.UpArrow))
        {
            shootDirection = Vector3.up;
            rot = Quaternion.Euler(0f, 0f, 90f);
        }
        else if (Input.GetKeyDown(KeyCode.DownArrow))
        {
            shootDirection = Vector3.down;
            rot = Quaternion.Euler(0f, 0f, -90f);

        }
        else if (Input.GetKeyDown(KeyCode.RightArrow))
        {
            shootDirection = Vector3.right;
            rot = Quaternion.Euler(0f, 0f, 0f);
        }
        else if (Input.GetKeyDown(KeyCode.LeftArrow))
        {
            shootDirection = Vector3.left;
            rot = Quaternion.Euler(0f, 0f, 180f);
        }


        if (shootDirection != Vector3.zero)
        {
            var spawnPos = transform.position + shootDirection * 0.6f;
            var projectile = Instantiate(_projectile, spawnPos, rot);
            projectile.GetComponent<DecreaseHealth>().TagsAffected.Remove(_playerTag); // Turn off friendly fire
        }
    }
}