UI元素更新及界面跳转

继上篇日志《Unity开发之 GUIClickEventReceiver》，再谈一下我们如何管理游戏中的UI元素更新及界面跳转

UI绑定

图一：Inspector面板 Public GameObjectName与GameObject一一对应

UI结构及命名规范

图二：Hierarchy面板 UI父子结构及组件命名规范

UI枚举种类

图三：enum GUIState

UI绑定代码

图四：public UI控件定义 与Hierarchy命名规范

UI主要方法及逻辑

图五：主要方法及逻辑

主要方法

1、隐藏Transform及子Transform

#if !UNITY_3_5
    private void activeRecursively(Transform obj,bool active)
    {
        foreach (Transform child in obj) {
            activeRecursively(child,active);
        }
        obj.gameObject.SetActive(active);
    }
   #endif

private GameObject panelFromState(GUIState state)
    {
        switch (state) {
        case GUIState.MainMenu:
            return mainMenuPanel;
        case GUIState.InGame:
            return inGamePanel;
        case GUIState.EndGame:
            return endGamePanel;
        case GUIState.Store:
            return storePanel;
        case GUIState.Stats:
            return statsPanel;
        case GUIState.Pause:
            return pausePanel;
        case GUIState.Tutorial:
            return tutorialPanel;
        case GUIState.Missions:
            return missionsPanel;
        }
        return null; // how'd we get here?
    }

private void changeGUIState(bool activate,GUIState state)
    {
        GameObject activePanel = panelFromState(state);

        if (activePanel != null) {
           #if UNITY_3_5
                activePanel.SetActiveRecursively(activate);
           #else
                activeRecursively(activePanel.transform,activate);
           #endif
        }
    }

public void showGUI(GUIState state)
    {
        // activate the new gui state,deactivate the old.
        changeGUIState(true,state);
        changeGUIState(false,guiState);
        
        switch (state) {
         case GUIState.EndGame:
            endGamescore.text = dataManager.getscore().ToString();
            endGameCoins.text = dataManager.getLevelCoins().ToString();
            endGameMultiplier.text = string.Format("{0}x",missionManager.getscoreMultiplier());
            break;
            
         case GUIState.Store:
            refreshStoreGUI();
            
            // go back to the correct menu that we came from
            if (guiState == GUIState.MainMenu) {
                storeBackButtonReceiver.clickType = ClickType.MainMenu;
            } else { // coming from GUIState.EndGame
                storeBackButtonReceiver.clickType = ClickType.EndGame;
            }
            break;
          //......
        }
      }

public void refreshStoreGUI()
    {
        storeTotalCoins.text = dataManager.getTotalCoins().ToString();
        
        int cost = dataManager.getPowerUpCost(PowerUpTypes.DoubleCoin);
        if (cost != -1) {
            storeCoinDoublerCost.text = string.Format("{0} Coins",cost);    
        } else {
#if UNITY_3_5
            storeCoinDoublerGroup.gameObject.SetActiveRecursively(false);
#else
            storeCoinDoublerGroup.SetActive(false);
#endif
        }
            
        cost = dataManager.getPowerUpCost(PowerUpTypes.CoinMagnet);
        if (cost != -1) {
            storeCoinMagnetCost.text = string.Format("{0} Coins",cost);    
        } else {
#if UNITY_3_5
            storeCoinMagnetGroup.SetActiveRecursively(false);
#else
            storeCoinMagnetGroup.SetActive(false);
#endif
        }
            
        cost = dataManager.getPowerUpCost(PowerUpTypes.Invincibility);
        if (cost != -1) {
            storeInvincibilityCost.text = string.Format("{0} Coins",cost);    
        } else {
#if UNITY_3_5
            storeInvincibilityGroup.SetActiveRecursively(false);
#else
            storeInvincibilityGroup.SetActive(false);
#endif
        }
    }