code

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

public class GameController : MonoBehaviour
{

    public double money;
    public double dpc;
    public double health;
    public double healthCap
    {
        get
        {
            return 10 * System.Math.Pow(2, stage - 1) * isBoss;
        }
    }
    public double reward;
    public int kills;
    public int stage;
    public int stageMax;
    public int killsMax;
    public int isBoss;
    public int timer;
    public int timerCap;

    public Text moneyText;
    public Text dPCText;
    public Text stageText;
    public Text killsText;
    public Text healthText;

    public GameObject back;
    public GameObject forward;

    public Image healthBar;

    public void Start()
    {

        stage = 1;
        stageMax = 1;
        killsMax = 10;
        kills = 0;
        healthCap = 10;
        health = healthCap;
        isBoss = 1;



    }

    public void Update()
    {
        moneyText.text = "$" + money.ToString("F2");
        stageText.text = "Stage - " + stage;
        killsText.text = kills + "/" + killsMax + " Kills";
        healthText.text = health + "/" + healthCap + " HP";
        dPCText.text = dpc + " dpc";

        healthBar.fillAmount = (float)(health / healthCap);

        if (stage > 1) back.gameObject.SetActive(true);
        else
            back.gameObject.SetActive(false);

        if (stage != stageMax) forward.gameObject.SetActive(true);
        else
            forward.gameObject.SetActive(false);

        IsBossChecker();
    }
    public void IsBossChecker()
    {
        if (stage % 5 == 0)
        {
            isBoss = 10;
            stageText.text = "(Boss!) Stage - " + stage;
        }
        else
            {
                isBoss = 1;
            }
    }



    public void Hit()
    {
        health -= dpc;
        if (health <= 0)
        {
            money += System.Math.Ceiling(healthCap / 14);
            if (stage == stageMax)
            {
                kills += 1;
                if (kills >= killsMax)
                {
                    kills = 0;
                    stage += 1;
                    stageMax += 1;


                }
            }
            IsBossChecker();
            health = healthCap;


        }
    }


    public void Back()
    {
        if (stage > 1) stage -= 1;
    }

    public void Forward()
    {
        if (stage != stageMax) stage += 1;
    }
}