Question

所以我需要一个c＃if()语句，看起来应该是这样的，也许吧？代码：

...
if(CurrentGameState != gameState.gameLoading && gameState.mainMenu && keyboardState.IsKeyDown(Keys.Escape))
{
      CurrentGameState = gameState.mainmenu;

}
//I get error in: CurrentGameState != gameState.gameLoading && gameState.mainMenu part
...

这就是我使用上述变量的代码：

    //Game States
    enum gameState
    {
        gameLoading,
        mainMenu,
        gameOptions,
        levelSelect,
        gamePlaying,
        gameOver
    }
    gameState CurrentGameState = gameState.gameLoading;
    //Keyboard State
    KeyboardState keyboardState = Keyboard.GetState();

有什么建议吗？

Answer 1

gameState.mainMenu是枚举值，不是布尔值。你不能按照你想要的方式使用它。你的意思是这样做的吗？

if (CurrentGameState != gameState.gameLoading && 
    CurrentGameState != gameState.mainMenu &&
    keyboardState.IsKeyDown(Keys.Escape))

Answer 2

我为格式化而不是用手机写字，但我认为你在使用xna，你应该在switch语句中使用你的游戏状态，否则你的代码会变得非常快而且效率低下

 Switch(currentgamestate)
 {
      Case gamestate.loading:
          If(pressing escape)
              Currentgamestate = gamestate.mainmenu;
       Break;
       Case gamestate.mainmenu;
            //todo
        Break;
   }

你的错误是因为你试图将两个条件链接在一起..如果currentgamestate没有加载并且是主菜单，你需要为每个条件引用当前游戏状态..如果currentgamestate没有加载且currentgamestate是mainmenu

Answer 3

if(CurrentGameState != gameState.gameLoading 
   && gameState.mainMenu && keyboardState.IsKeyDown(Keys.Escape))

可能是

if(CurrentGameState != gameState.gameLoading && 
   CurrentGameState==gameState.mainMenu && keyboardState.IsKeyDown(Keys.Escape))

如何在c＃中的if（）语句中调用多个函数

3 个答案: