我有兩個scala項目 - 基本相同 - 一個工作，一個不工作。有人能告訴我爲什麼嗎？

Question

對於課堂，我們必須製作一個基於測試的遊戲，在這個遊戲中我們會穿過一系列像老派文本遊戲Colossal Cave Adventure一樣的房間。

我開始爲不同房間定義功能，以便在房間中輸入方向時可以輕鬆切換。

這下面的代碼工作在REPL的大部分時間，但我想它每次工作：

def roomOne():Unit = { 
println("You are currently in Room 1.") 
println("There are 2 doors: North and West") 
println("Which door would you like to go through?") 

var input = readLine(">> ").toUpperCase match { 
case "NORTH" => roomFour() 
case "WEST" => roomNine() 
case "EAST" => { 
    println("You cannot go there.") 
    roomOne() 
} 
case "SOUTH" => { 
    println("You cannot go there.") 
    roomOne() 
    } 
} 
} 
def roomFour():Unit = { 
println("You are currently in Room 4.") 
println("There are 2 doors: East and South") 
println("Which door would you like to go through?") 
} 
def roomNine():Unit = { 
println("You are currently in Room 9.") 
println("There are 3 doors: North, East, and South") 
println("Which door would you like to go through?") 
} 
def startGame():Unit = { 
var input = readLine(">> ").toUpperCase match { 
case "YES" => roomOne() 
case "NO" => { 
    println("When you are ready to begin please type \"yes\".") 
    startGame() 
} 
} 
} 

println("**************************************************") 
println("**************************************************") 

println("Hello Mr. Doofenshmirtz. Are you ready to find the parts to create the Super DOOM-inator?") 

startGame() 

和下面的代碼不會在REPL在所有的工作：

def roomOne():Unit = { 
println("You are currently in Room 1.") 
println("There are 2 doors: North and West") 
println("Which door would you like to go through?") 

var input = readLine(">> ").toUpperCase match { 
case "NORTH" => roomFour() 
case "WEST" => roomNine() 
case "EAST" => { 
    println("You cannot go there.") 
    roomOne() 
} 
case "SOUTH" => { 
    println("You cannot go there.") 
    roomOne() 
} 
} 
} 
def roomFour():Unit = { 
println("You are currently in Room 4.") 
println("There are 2 doors: East and South") 
println("Which door would you like to go through?") 

var input = readLine(">> ").toUpperCase match { 
case "NORTH" => { 
    println("You cannot go there.") 
    roomFour() 
} 
case "WEST" => { 
    println("You cannot go there.") 
    roomFour() 
} 
case "EAST" => roomFive() 
case "SOUTH" => roomOne() 
} 
} 
def roomFive():Unit = { 
println("You are currently in Room 5.") 
println("There are 3 doors: East, South, and West") 
println("Which door would you like to go through?") 
} 
def roomNine():Unit = { 
println("You are currently in Room 9.") 
println("There are 3 doors: North, East, and South") 
println("Which door would you like to go through?") 
} 
def startGame():Unit = { 
var input = readLine(">> ").toUpperCase match { 
case "YES" => roomOne() 
case "NO" => { 
    println("When you are ready to begin please type \"yes\".") 
    startGame() 
} 
} 
} 

println("**************************************************") 
println("**************************************************") 

println("Hello Mr. Doofenshmirtz. Are you ready to find the parts to create the Super DOOM-inator?") 

startGame() 

有人可以幫我嗎？我一整天都在嘗試不同的東西，而我似乎無法讓它工作。爲什麼第一個工作一些而不總是？爲什麼第二個不工作？我每次運行它時如何獲得第二個工作？

謝謝。

Answer 1

看着pastebin，問題可能出在您將代碼粘貼到REPL的方式。試試這個：

scala> :paste 
// Entering paste mode (ctrl-D to finish) 

... paste stuff ... 

... press Ctrl-d