using UnityEngine;

public class FuelTank : MonoBehaviour
{
    public float fuelAmount = 1000f; // kg of fuel available in the tank
    public float rcsFuelAmount = 200f; // kg of monopropellant available for RCS
    public bool isEmpty => fuelAmount <= 0f;
    public bool isRcsEmpty => rcsFuelAmount <= 0f;
    public float RequestFuel(float amount)
    {
        float fuelGiven = Mathf.Min(amount, fuelAmount);
        fuelAmount -= fuelGiven;
        return fuelGiven;
    }
    public float RequestRcsFuel(float amount)
    {
        float fuelGiven = Mathf.Min(amount, rcsFuelAmount);
        rcsFuelAmount -= fuelGiven;
        return fuelGiven;
    }
    public float GetFuelAmount() => fuelAmount;
    public float GetRcsFuelAmount() => rcsFuelAmount;
    void Update()
    {
        if (fuelAmount <= 0f)
        {
            fuelAmount = 0f;
        }
        if (rcsFuelAmount <= 0f)
        {
            rcsFuelAmount = 0f;
        }
    }
}