Reto mouredev#44 - Java

Retos/Reto #44 - ADIVINANZAS MATEMÁTICAS [Media]/java/asjordi.java

@@ -0,0 +1,80 @@
+import java.util.Random;
+import java.util.Scanner;
+import java.util.Timer;
+import java.util.TimerTask;
+
+public class MathRiddle {
+
+    static boolean gameOn = true;
+    static int correctAnswers = 0;
+    static int num1Digits = 1;
+    static int num2Digits = 1;
+    static Random random = new Random();
+
+    public static void main(String[] args) {
+        while (gameOn) {
+            int num1 = randomInt(num1Digits);
+            int num2 = randomInt(num2Digits);
+            char operation = randomOperation();
+
+            int result;
+            if (operation == '+') result = num1 + num2;
+            else if (operation == '-') result = num1 - num2;
+            else if (operation == '*') result = num1 * num2;
+            else {
+                while (num2 == 0) num2 = randomInt(num2Digits);
+                result = num1 / num2;
+            }
+
+            String answer = inputWithTimeout(num1, num2, operation);
+
+            if (!gameOn) break;
+            else if (answer.equals(Integer.toString(result))) {
+                System.out.println("Respuesta correcta!");
+                correctAnswers++;
+
+                if (correctAnswers % 5 == 0) {
+                    if (correctAnswers % 2 == 0) num2Digits++;
+                    else num1Digits++;
+                }
+
+            } else {
+                System.out.println("Respuesta incorrecta!");
+                gameOn = false;
+            }
+        }
+
+        System.out.println("Juego finalizado. Has acertado " + correctAnswers + " cálculos.");
+    }
+
+    private static int randomInt(int digits) {
+        return random.nextInt((int) Math.pow(10, digits));
+    }
+
+    private static char randomOperation() {
+        char[] operations = {'+', '-', '*', '/'};
+        return operations[random.nextInt(operations.length)];
+    }
+
+    private static String inputWithTimeout(int num1, int num2, char operation) {
+        Timer timer = new Timer();
+        timer.schedule(new TimerTask() {
+            @Override
+            public void run() {
+                System.out.println("\n¡El tiempo ha finalizado! Pulsa enter.");
+                gameOn = false;
+            }
+        }, 3000);
+
+        String answer;
+        try {
+            System.out.print("¿Cuál es el resultado de " + num1 + " " + operation + " " + num2 + "? ");
+            answer = new Scanner(System.in).nextLine();
+        } finally {
+            timer.cancel();
+        }
+
+        return answer;
+    }
+
+}