Trying to combine my inventory and weapon system

Unity Engine
,
1

So I watched some tutorials and made a inventory and weapon system but the problem is these system were both taken from different kind of videos. So I want to combine both of them.

this is my weapon switch system

using UnityEngine;

public class Weapon_switching : MonoBehaviour
{
    public int selectedWeapon = 0;

    // Start is called before the first frame update
    void Start()
    {
        SelectWeapon();
    }

    // Update is called once per frame
    void Update()
    {
        int previousSelectedWeapon = selectedWeapon;

        if (Input.GetAxis("Mouse ScrollWheel") > 0f)
        {
            if (selectedWeapon >= transform.childCount - 1)
                selectedWeapon = 0;
            else
            selectedWeapon++;
        }
        if (Input.GetAxis("Mouse ScrollWheel") < 0f)
        {
            if (selectedWeapon <= 0)
                selectedWeapon = transform.childCount - 1;
            else
                selectedWeapon--;
        }

        if(Input.GetKeyDown(KeyCode.Alpha1))
        {
            selectedWeapon = 0;
        }
      
        if (Input.GetKeyDown(KeyCode.Alpha2) && transform.childCount >= 2)
        {
            selectedWeapon = 1;
        }

        if (Input.GetKeyDown(KeyCode.Alpha3) && transform.childCount >= 3)
        {
            selectedWeapon = 2;
        }

        if (Input.GetKeyDown(KeyCode.Alpha2) && transform.childCount >= 4)
        {
            selectedWeapon = 3;
        }

        if (Input.GetKeyDown(KeyCode.Alpha2) && transform.childCount >= 5)
        {
            selectedWeapon = 4;
        }

        if (previousSelectedWeapon != selectedWeapon)
        {
            SelectWeapon();
        }
    }

    void SelectWeapon ()
    {
        int i = 0;
        foreach (Transform weapon in transform)
        {
            if (i == selectedWeapon)
                weapon.gameObject.SetActive(true);
            else
                weapon.gameObject.SetActive(false);
            i++;
        }
    }
}

this is the equipment code

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

[CreateAssetMenu(fileName = "New Equipment", menuName = "Inventory/Equipment")]
public class Equipment : Item
{
    public EquipmentSlot equipSlot;

    public int armorModifier;

    public override void Use()
    {
        base.Use();
        EquipmentManager.instance.Equip(this);
        RemoveFromInventory();
    }
}

public enum EquipmentSlot { Armor, Smg, Pistol, Rifle, Heavy}

this is the equipment manager

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

public class EquipmentManager : MonoBehaviour
{
    #region Singleton
    public static EquipmentManager instance;

    private void Awake()
    {
        instance = this;
    }

    #endregion

    Equipment[] currentEquipment;

    public delegate void OnEquipmentChanged(Equipment newItem, Equipment oldItem);
    public OnEquipmentChanged onEquipmentChanged;

    Inventory inventory;

    private void Start()
    {
        inventory = Inventory.instance;

        int numSlots = System.Enum.GetNames(typeof(EquipmentSlot)).Length;
        currentEquipment = new Equipment[numSlots];
    }
    public void Equip (Equipment newItem)
    {
        int slotIndex = (int)newItem.equipSlot;

        Equipment oldItem = null;

        if (currentEquipment[slotIndex] != null)
        {
            oldItem = currentEquipment[slotIndex];
            inventory.Add(oldItem);
        }

        if (onEquipmentChanged != null)
        {
            onEquipmentChanged.Invoke(newItem, oldItem);
        }

        currentEquipment[slotIndex] = newItem;
    }

}

I wanna make it so when I press 1 on the keyboard it will equip the smg and pistol when I press 2 and be switchable with the mouse scrollwheel too
I am new at the game making stuff and still trying to learn and I would be very happy if someone could help me.
edit: forgot to say, I want to abandon the old method and switch between my weapons using the equipment system

2

Hi @ziyo100

I find inventories fascinating. However, you should have posted this in Scripting forum IMO. Not many people here in 2D forum are expecting this kind of questions.

I didn’t read your code properly. But I think you should simply make some script that takes input. When user presses certain key, you call your EquipmentManager’s Equip, with thing you want to equip. Put the old thing that was possibly equipped somewhere, throw it away or put it into your inventory. Then equip the new item.

3

thank you for your advice
note: this is my first time posting a question in unity forums so I didnt know where to post