using System;
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using Core.Economy;
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using Core.Utilities;
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using UnityEngine;
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namespace TowerDefense.Economy
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{
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/// <summary>
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/// A class for currency gain
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/// </summary>
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[Serializable]
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public class CurrencyGainer
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{
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/// <summary>
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/// The amount gained with the gain rate
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/// </summary>
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public int constantCurrencyAddition;
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/// <summary>
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/// The speed of currency gain in units-per-second
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/// </summary>
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[Header("The Gain Rate in additions-per-second")]
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public float constantCurrencyGainRate;
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/// <summary>
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/// Event for when the currency is changed
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/// </summary>
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public event Action<CurrencyChangeInfo> currencyChanged;
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/// <summary>
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/// The timer for constant currency gain
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/// </summary>
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protected RepeatingTimer m_GainTimer;
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/// <summary>
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/// Gets the currency that this CurrencyGainer modifes
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/// </summary>
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public Currency currency { get; private set; }
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/// <summary>
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/// Initializes the currency gainer with new data
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/// </summary>
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/// <param name="currencyController">
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/// The currency controller to modify with this currency gainer
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/// </param>
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/// <param name="gainAddition">
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/// The currency gained with each addition
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/// </param>
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/// <param name="gainRate">
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/// The rate of gain
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/// </param>
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public void Initialize(Currency currencyController, int gainAddition, float gainRate)
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{
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constantCurrencyAddition = gainAddition;
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constantCurrencyGainRate = gainRate;
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Initialize(currencyController);
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}
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/// <summary>
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/// Initializes the currency gainer
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/// </summary>
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public void Initialize(Currency currencyController)
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{
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currency = currencyController;
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UpdateGainRate(constantCurrencyGainRate);
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}
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/// <summary>
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/// For updating the gain timer
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/// </summary>
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/// <param name="deltaTime">
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/// The change in time to update the timer
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/// </param>
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public void Tick(float deltaTime)
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{
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if (m_GainTimer == null)
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{
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return;
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}
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m_GainTimer.Tick(Time.deltaTime);
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}
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/// <summary>
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/// Sets the currency gain rate and activates the timer
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/// </summary>
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/// <param name="currencyGainRate">
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/// The amount to set the constant gain rate to
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/// </param>
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public void UpdateGainRate(float currencyGainRate)
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{
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constantCurrencyGainRate = currencyGainRate;
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if (currencyGainRate < 0)
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{
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throw new ArgumentOutOfRangeException("currencyGainRate");
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}
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if (m_GainTimer == null)
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{
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m_GainTimer = new RepeatingTimer(1 / constantCurrencyGainRate, ConstantGain);
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}
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else
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{
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m_GainTimer.SetTime(1 / constantCurrencyGainRate);
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}
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}
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/// <summary>
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/// Increase the currency by m_ConstantCurrencyAddition
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/// </summary>
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protected void ConstantGain()
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{
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int previousCurrency = currency.currentCurrency;
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currency.AddCurrency(constantCurrencyAddition);
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int currentCurrency = currency.currentCurrency;
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var info = new CurrencyChangeInfo(previousCurrency, currentCurrency);
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if (currencyChanged != null)
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{
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currencyChanged(info);
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}
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}
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}
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}
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