Game Development: Math Quiz Creation in Scratch
📌 The tutorial focuses on creating a simple addition math game using the Nano sprite and a purple 'Kert' backdrop.
⚙️ Key variables established include angka pertama (first number), angka kedua (second number), jawaban benar (correct answer), skor (score), and jumlah main (number of times played).
❓ The game prompts users with questions like "Angka pertama + Angka kedua = ?" using the `join` operator to construct the sentence.
✅ Correct answers trigger a costume change to Nano C and increment the score by 1; incorrect answers change the costume to Nano D (angry face).

Timer and Game Flow Control
⏱️ A timer mechanism is implemented on the backdrop to control the game duration, set initially to 5 seconds via the `waktu main` variable.
🛑 When the elapsed time exceeds `waktu main`, the backdrop sends a "selesai" (finished) broadcast and executes `stop all`.
📊 Upon receiving the "selesai" broadcast, the Nano sprite displays the final results using the format: "Nilai kamu [score] dari [jumlah main] kali main".

Replayability Feature
🧡 A "Main Lagi" (Play Again) button sprite is added, initially hidden (`hide`) at the start of the game.
🔄 This button is shown upon receiving the "selesai" broadcast and, when clicked, it hides itself and sends a "main lagi" (play again) broadcast.
🔄 Both the Nano sprite and the backdrop duplicate their initial setup blocks to handle the "main lagi" broadcast, effectively resetting the game state and starting a new round.

Key Points & Insights
➡️ Structured Variable Management is crucial for storing random numbers, correct answers, and game statistics like score and play count.
➡️ Event Handling via Broadcasts is effectively used to manage transitions between game states (start, finish, replay) across different sprites (Nano and Backdrop).
➡️ Visual Feedback through costume changes (Nano C for correct, Nano D for incorrect) enhances the user experience during the quiz.
➡️ The replay button logic utilizes broadcasting to ensure all necessary components (Nano, Backdrop) seamlessly reset their states for the next round.

📸 Video summarized with SummaryTube.com on Dec 01, 2025, 10:19 UTC