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Harvest Hints is a Wordle-inspired game where player selects a farm-related category and try to guess the correct word.

Game flow

Harvest Hints is handled by two main functions: startGame() and playGame()
startGame() - handle name input and game options leading to main gameplay or playGame()

1. Game initialization

• User inputs name
• User chooses options [0] & [1] to go further to category prompt(playGame()) or change name (restart startGame())

2. Main Gameplay

• User's max attempts is set/reset
• User chooses a category in a prompt
• User guesses a word based on the category chosen
• Each guess is evaluated. Left attempt decreases.
• Evaluate a game: win or lose
• On game ending modal, user can choose to restart or exit game.

Things I have learnt from this project

• continue; can be used only within loops. It is useful for staying on a remaining progress.
• CANCEL and OK in prompt("") is handled by prompt === null and promptCategory.trim() === "" respectively
• CANCEL and OK in confirm("") is easy to handle by using booleans in an if-else statement, and no need to trim string since it does not require an input
• To be able to restart a game, separate main gameplay out so it is easy to manage and call
• Writing a simple RegExp to evaluate if the input is letter-based.
• function checkGuess() for checking a right letter but wrong spot turned out to be more challenging than I thought. It did not work simply by using .includes("").
• The function works by labelling all letters in array as false and unused. Then, proceed to check right letter ✅ in the first loop. The last loop checks for the right letter but in wrong position 🐥. It does not check on wrong letter in wrong position since we filled them at the start of function.

Solution

const checkGuess = (guess) => {
    // fill every letter in array as ⬛️, as default
    let feedback = Array(MAX_WORD_LENGTH).fill("⬛️");
    // fill whole array unused letter
    let usedLetters = Array(MAX_WORD_LENGTH).fill(false);
    // then check if its correct and right position, then green
    for (let i = 0; i < MAX_WORD_LENGTH; i++) {
      if (guess[i] === randomWord[i]) {
        feedback[i] = "✅";
        usedLetters[i] = true;
      }
    }
    // loop to check ⬛️ if correct letter but wrong spot
    for (let i = 0; i < MAX_WORD_LENGTH; i++) {
      if (feedback[i] === "⬛️") {
        for (let j = 0; j < MAX_WORD_LENGTH; j++) {
          if (!usedLetters[j] && guess[i] === randomWord[j]) {
            feedback[i] = "🐥";
            usedLetters[j] = true;
            break;
          }
        }
      }
    }
    return feedback.join("");
  };