//using Boo.Lang;
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using TowerDefense.Level;
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using TowerDefense.Towers;
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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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/// Controls the UI objects that draw the tower data
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/// </summary>
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[RequireComponent(typeof(Canvas))]
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public class TowerUI : MonoBehaviour
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{
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/// <summary>
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/// The text object for the name
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/// </summary>
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public Text towerName;
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/// <summary>
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/// The text object for the description
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/// </summary>
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public Text description;
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public Text upgradeDescription;
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/// <summary>
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/// The attached sell button
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/// </summary>
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public Button sellButton;
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/// <summary>
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/// The attached upgrade button
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/// </summary>
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public Button upgradeButton;
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/// <summary>
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/// Component to display the relevant information of the tower
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/// </summary>
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public TowerInfoDisplay towerInfoDisplay;
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public RectTransform panelRectTransform;
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public GameObject[] confirmationButtons;
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/// <summary>
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/// The main game camera
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/// </summary>
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protected Camera m_GameCamera;
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/// <summary>
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/// The current tower to draw
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/// </summary>
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protected Tower m_Tower;
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/// <summary>
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/// The canvas attached to the gameObject
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/// </summary>
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protected Canvas m_Canvas;
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/// <summary>
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/// Draws the tower data on to the canvas，在界面上显示塔防信息，显示操作和信息界面。
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/// 继续修改，确保其它方面的内容处理。
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/// </summary>
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/// <param name="towerToShow">
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/// The tower to gain info from
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/// </param>
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public virtual void Show(Tower towerToShow)
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{
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if (towerToShow == null)
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{
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return;
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}
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m_Tower = towerToShow;
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AdjustPosition();
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int sellValue = m_Tower.GetSellLevel();
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///
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// TEST COED TO DELETE:
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if( sellButton != null)
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{
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// TEST CODE TO DELETE:
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if( m_Tower != null )
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GameUI.instance.startDragTower(m_Tower);
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/** 以下代码用于测试合成:
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if((!m_Tower.isAtMaxLevel) && GameUI.instance.deleteSameLvlTower( m_Tower))
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{
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GameUI.instance.UpgradeSelectedTower();
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}*/
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return;
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}
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else
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{
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if (GameUI.instance.towerInList(m_Tower) )
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return;
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}
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m_Canvas.enabled = true;
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///
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if (sellButton != null)
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{
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sellButton.gameObject.SetActive(sellValue > 0);
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}
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if (upgradeButton != null)
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{
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upgradeButton.interactable =
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LevelManager.instance.currency.CanAfford(m_Tower.GetCostForNextLevel());
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bool maxLevel = m_Tower.isAtMaxLevel;
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upgradeButton.gameObject.SetActive(!maxLevel);
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if (!maxLevel)
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{
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upgradeDescription.text =
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m_Tower.levels[m_Tower.currentLevel + 1].upgradeDescription.ToUpper();
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}
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}
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LevelManager.instance.currency.currencyChanged += OnCurrencyChanged;
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towerInfoDisplay.Show(towerToShow);
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foreach (var button in confirmationButtons)
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{
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button.SetActive(false);
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}
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}
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/// <summary>
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/// Hides the tower info UI and the radius visualizer
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/// </summary>
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public virtual void Hide()
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{
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m_Tower = null;
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if (GameUI.instanceExists)
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{
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GameUI.instance.HideRadiusVisualizer();
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}
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m_Canvas.enabled = false;
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LevelManager.instance.currency.currencyChanged -= OnCurrencyChanged;
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}
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/// <summary>
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/// Upgrades the tower through <see cref="GameUI"/>
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/// </summary>
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public void UpgradeButtonClick()
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{
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GameUI.instance.UpgradeSelectedTower();
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}
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/// <summary>
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/// Sells the tower through <see cref="GameUI"/>
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/// </summary>
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public void SellButtonClick()
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{
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GameUI.instance.SellSelectedTower();
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}
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/// <summary>
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/// Get the text attached to the buttons
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/// </summary>
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protected virtual void Awake()
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{
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m_Canvas = GetComponent<Canvas>();
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}
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/// <summary>
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/// Fires when tower is selected/deselected
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/// </summary>
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/// <param name="newTower"></param>
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protected virtual void OnUISelectionChanged(Tower newTower)
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{
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if (newTower != null)
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{
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Show(newTower);
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}
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else
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{
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Hide();
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}
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}
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/// <summary>
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/// Subscribe to mouse button action
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/// </summary>
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protected virtual void Start()
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{
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m_GameCamera = Camera.main;
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m_Canvas.enabled = false;
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if (GameUI.instanceExists)
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{
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GameUI.instance.selectionChanged += OnUISelectionChanged;
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GameUI.instance.stateChanged += OnGameUIStateChanged;
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}
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}
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/// <summary>
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/// Adjust position when the camera moves
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/// </summary>
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protected virtual void Update()
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{
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AdjustPosition();
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}
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/// <summary>
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/// Unsubscribe from currencyChanged
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/// </summary>
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protected virtual void OnDisable()
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{
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if (LevelManager.instanceExists)
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{
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LevelManager.instance.currency.currencyChanged -= OnCurrencyChanged;
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}
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}
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/// <summary>
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/// Adjust the position of the UI
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/// </summary>
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protected void AdjustPosition()
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{
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if (m_Tower == null)
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{
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return;
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}
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Vector3 point = m_GameCamera.WorldToScreenPoint(m_Tower.position);
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point.z = 0;
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panelRectTransform.transform.position = point;
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}
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/// <summary>
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/// Fired when the <see cref="GameUI"/> state changes
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/// If the new state is <see cref="GameUI.State.GameOver"/> we need to hide the <see cref="TowerUI"/>
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/// </summary>
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/// <param name="oldState">The previous state</param>
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/// <param name="newState">The state to transition to</param>
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protected void OnGameUIStateChanged(GameUI.State oldState, GameUI.State newState)
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{
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if (newState == GameUI.State.GameOver)
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{
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Hide();
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}
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}
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/// <summary>
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/// Check if player can afford upgrade on currency changed
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/// </summary>
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void OnCurrencyChanged()
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{
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if (m_Tower != null && upgradeButton != null)
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{
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upgradeButton.interactable =
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LevelManager.instance.currency.CanAfford(m_Tower.GetCostForNextLevel());
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}
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}
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/// <summary>
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/// Unsubscribe from GameUI selectionChanged and stateChanged
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/// </summary>
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void OnDestroy()
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{
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if (GameUI.instanceExists)
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{
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GameUI.instance.selectionChanged -= OnUISelectionChanged;
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GameUI.instance.stateChanged -= OnGameUIStateChanged;
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}
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}
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}
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}
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