How do I make a variable public? : I am making a game with c# (WINFORM Application) in Visual Studio. I have a int named "mode" and I want to make every function be able to access it. Here is my code.

    using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    using System.Windows.Forms;

    namespace WindowsFormsApplication1
    {
    public partial class Form5 : Form
    {
        public Form5()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            int wow = mode - 1;
        }

        private void Form5_Load(object sender, EventArgs e)
        {
            int mode = 4;
        }
    }
    }
