firing.cs

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.InputSystem;

public class Firing : MonoBehaviour
{
    [Header("Weapons")]
    [Header("Main Weapon")]
    public GameObject mainWeapon;
    public int minWeaponDamage;
    public int maxWeaponDamage;
    public float weaponFireRate;
    [Header("Main Weapon")]
    public GameObject backupWeapon;
    [Header("Explosive Weapon")]
    public GameObject explosiveWeapon;
    public int maxGrenades = 1;
    public int grenades = 1;
    [Header("Special Weapon")]
    public GameObject specialWeapon;
    public bool canUseSpecial = false;
    public float specialTimer;

    private GameObject Player;

    private PlayerControls playerControls;

    private PlayerInput playerInput;

    private bool isFiring;

    public EnemyHealth enemyHealth { get; private set; }

    PlayerLevel playerLevel;

    void Awake()
    {
        Player = this.gameObject;
        playerControls = new PlayerControls();
        playerInput = Player.GetComponent<PlayerInput>();
        playerLevel = Player.GetComponent<PlayerLevel>();
    }

    private void OnEnable()
    {
        playerControls.Enable();
        playerControls.Player.FireMain.performed += FireMain;
        playerControls.Player.FireMain.canceled += FireMain;
        playerControls.Player.FireSecondary.performed += FireSecondary;
        playerControls.Player.FireExplosive.performed += FireExplosive;
        playerControls.Player.FireSpecial.performed += FireSpecial;
    }

    private void OnDisable()
    {
        playerControls.Disable();
        playerControls.Player.FireMain.performed -= FireMain;
        playerControls.Player.FireMain.canceled -= FireMain;
        playerControls.Player.FireSecondary.performed -= FireSecondary;
        playerControls.Player.FireExplosive.performed -= FireExplosive;
        playerControls.Player.FireSpecial.performed -= FireSpecial;
    }

    public void FireMain(InputAction.CallbackContext obj)
    { 
        // Button is held down
        if ( obj.performed )
        {
            isFiring = true;
        }
        // Button is released
        else
        {
            isFiring = false;
        }
        // Run the Coroutine
        StartCoroutine( loopFireMain() );
    }

    // The Coroutine to run
    IEnumerator loopFireMain()
    {
        // Check isFiring is true
        if ( isFiring )
        {
            // Fire Raycast forward from the player
            Ray mainRay = new Ray(Player.transform.position, Player.transform.forward);

            // Check the Raycast hits anything
            if ( Physics.Raycast(mainRay, out RaycastHit mainHit, 100f) )
            {
                // Check an object with the "Enemy" tag is hit
                if (mainHit.collider.tag == "Enemy")
                {
                    // Get the Player level, use this is a damage modifier
                    int levelModifier = playerLevel.playerLevel;
                    // Get the Damage range for the weapon
                    int weaponDamage = UnityEngine.Random.Range(minWeaponDamage, maxWeaponDamage);
                    // Modify damage based on Player level
                    weaponDamage = weaponDamage + 10 * levelModifier;
                    // Set up function to pass damage value to EnemyHealth script
                    void mainHitDamage(int weaponDamage)
                    {
                        enemyHealth = mainHit.collider.GetComponent<EnemyHealth>();
                        enemyHealth.enemyHealth -= weaponDamage;
                        enemyHealth.updateHealth();
                    }
                    // Perform the function
                    mainHitDamage(weaponDamage);
                    // Debug.Log($" Weapon Damage: {weaponDamage}");
                }
            }
            // Wait the duration of the weapon fire rate if button is held
            yield return new WaitForSeconds(weaponFireRate);
            // Start the Coroutine
            StartCoroutine( loopFireMain() );
        } 
    }

    private void FireSecondary(InputAction.CallbackContext obj)
    {
        Ray backupRay = new Ray(Player.transform.position, Player.transform.forward);

        if (Physics.Raycast(backupRay, out RaycastHit backupHit, 100f))
        {
            // hit code here
            if (backupHit.collider.tag == "Enemy")
            {
                Debug.Log("Fire Backup");
            }
        }
    }

    private void FireExplosive(InputAction.CallbackContext obj)
    {
        if ( grenades > 0 )
        {
            Debug.Log("Fire Explosive");
            grenades--;
        }
    }

    private void FireSpecial(InputAction.CallbackContext obj)
    {
        if ( canUseSpecial )
        {
            Debug.Log("Fire Special");
            canUseSpecial = false;
        }
    }
}