using System.Globalization;
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using Core.Health;
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using TowerDefense.Level;
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using UnityEngine;
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using UnityEngine.UI;
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namespace TowerDefense.UI.HUD
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{
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/// <summary>
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/// A simple implementation of UI for player base health
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/// </summary>
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public class PlayerBaseHealth : MonoBehaviour
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{
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/// <summary>
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/// The text element to display information on
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/// </summary>
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public Text display;
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/// <summary>
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/// The highest health that the base can go to
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/// </summary>
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protected float m_MaxHealth;
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/// <summary>
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/// Get the max health of the player base
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/// </summary>
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protected virtual void Start()
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{
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LevelManager levelManager = LevelManager.instance;
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if (levelManager == null)
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{
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return;
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}
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if (levelManager.numberOfHomeBases > 0)
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{
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Damageable baseConfig = levelManager.playerHomeBases[0].configuration;
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baseConfig.damaged += OnBaseDamaged;
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float currentHealth = baseConfig.currentHealth;
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float noramlisedHealth = baseConfig.normalisedHealth;
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m_MaxHealth = currentHealth / noramlisedHealth;
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}
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UpdateDisplay();
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}
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/// <summary>
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/// Subscribes to the player base health died event
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/// </summary>
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/// <param name="info">
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/// The associated health change information
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/// </param>
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protected virtual void OnBaseDamaged(HealthChangeInfo info)
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{
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UpdateDisplay();
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}
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/// <summary>
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/// Get the current health of the home base and display it on m_Display
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/// </summary>
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protected void UpdateDisplay()
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{
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LevelManager levelManager = LevelManager.instance;
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if (levelManager == null)
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{
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return;
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}
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float currentHealth = levelManager.GetAllHomeBasesHealth();
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display.text = currentHealth.ToString(CultureInfo.InvariantCulture);
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}
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}
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}
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