Streamlined code

Unreal Courses Show
,
#1 
#include "BullCowCartridge.h"
#include "Misc/FileHelper.h"
#include "Misc/Paths.h"

void UBullCowCartridge::BeginPlay() // When the game starts
{
    Super::BeginPlay();

    PopulateIsograms();

    SetupGame();
}

void UBullCowCartridge::OnInput(const FString& PlayerInput) // When the player hits enter
{
    ClearScreen();

    if (bGameOver)
    {
        ClearScreen();
        SetupGame();
    }
    else
    {
        CheckGuess(PlayerInput);     
    }
}

void UBullCowCartridge::PopulateIsograms()
{
    const FString WordListPath = FPaths::ProjectContentDir() / TEXT("WordLists/HiddenWordList.txt");
    FFileHelper::LoadFileToStringArrayWithPredicate(Isograms, *WordListPath, [](const FString& Word)
    {
        return Word.Len() >= 4 && Word.Len() <= 8 && IsIsogram(Word);
    });
}

void UBullCowCartridge::SetupGame()
{
    HiddenWord = Isograms[FMath::RandRange(0, Isograms.Num()-1)];
    Lives = HiddenWord.Len()*2;
    bGameOver = false;
    bMulligan = true;

    PrintLine(TEXT("Welcome to the Bull Cow Game!"));
    PrintLine(TEXT("You have %i guesses for the secret isogram"), HiddenWord.Len());
    PrintLine(TEXT("*An isogram has no repeating characters*"));
    PrintLine(TEXT("Guess the %i letter word and press enter:"), HiddenWord.Len());
   
    // Debug
    PrintLine(TEXT("The HiddenWord is: %s"), *HiddenWord);
    PrintLine(TEXT("%i"), Isograms.Num());
}

void UBullCowCartridge::EndGame()
{
    bGameOver = true;
    if (Lives <= 0)
    {
        PrintLine(TEXT("You have lost this round!"));
        PrintLine(TEXT("The hidden word was %s"), *HiddenWord);
    }
    PrintLine(TEXT("\nPress enter to play again"));

    Isograms.Remove(HiddenWord);
    if (Isograms.Num() <= 0)
    {
        PopulateIsograms();
    }
}

void UBullCowCartridge::CheckGuess(const FString& Guess)
{
    if (Guess == HiddenWord)
    {
        PrintLine(TEXT("You guessed correctly!!!"));
        EndGame();
        return;
    }

    if (Guess == TEXT(""))
    {
        PrintLine(TEXT("You did not type anything"));
        PrintLine(TEXT("Please type a guess and press enter"));
        PrintLine(TEXT("Your guess needs to be %i characters long"), HiddenWord.Len());
        return;
    }

    if (Guess.Len() != HiddenWord.Len() || !IsIsogram(Guess))
    {
        PrintLine(TEXT("ERROR!\nYour guess was not %i characters long"), HiddenWord.Len());
        PrintLine(TEXT("or has repeating characters"));
        if (bMulligan)
        {
            PrintLine(TEXT("This is your one mulligan")); 
            bMulligan = false;
            return;
        }
        if(--Lives <= 0)
        {
            EndGame();
            return;
        }
        PrintLine(TEXT("Guess again, %i guess(es) remaining"), Lives);
        return;
    }
    
    PrintLine(TEXT("You guessed incorrectly"));

    if (--Lives <= 0)
    {
        EndGame();
        return;
    }

    int32 Bulls, Cows;
    BullCowCount(Guess, Bulls, Cows);
    
    PrintLine(TEXT("Your guess has %i Bulls and %i Cows"), Bulls, Cows);
    PrintLine(TEXT("Try again, %i guess(es) remaining"), Lives);
}

bool UBullCowCartridge::IsIsogram(const FString& Word)
{
    for (int32 Index = 0; Index < Word.Len() - 1; Index++)
    {
        for (int32 Compare = Index + 1; Compare < Word.Len(); Compare++)
        {
            if (Word[Index] == Word[Compare])
            {
                return false;
            }
        }
    }
    return true;
}

void UBullCowCartridge::BullCowCount(const FString& Guess, int32& Bulls, int32& Cows) const
{
    Bulls = 0;
    Cows = 0;    
    for (int32 Index = 0; Index < Guess.Len(); Index++)
    {
        if (Guess[Index] == HiddenWord[Index])
        {
            Bulls++;
            continue;
        }
        for (int32 Compare = 0; Compare < HiddenWord.Len(); Compare++)
        {
            if (Guess[Index] == HiddenWord[Compare])
            {
                Cows++;
            }
        }
    }
}

There is still the Struct lecture, but I’ve taken everything I learned so far and ran back through my code and optimized it.

1 Like
#2

How do you know if it is optimized? What standards do you go off of?

#3

At this point, it was just running through the code and applying what I learned to cut down on the formulas and to remove extraneous variables that I had.

Privacy & Terms