Refactor code by Maes-tr0

.gitignore

@@ -0,0 +1,19 @@
+# Ігнорування зібраних файлів класів
+*.class
+
+# Лог файли
+*.log
+
+# Папки побудови проєкту
+.idea/
+target/
+build/
+
+# Налаштування IDE
+.idea
+*.iml
+.vscode/
+
+# Файли операційної системи
+.DS_Store
+Thumbs.db

pom.xml

@@ -1,11 +1,14 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.example</groupId>
     <artifactId>App</artifactId>
+
     <packaging>jar</packaging>
     <version>1.0-SNAPSHOT</version>
-    <name>App</name>
+    <name>ua.example.App</name>
+
     <properties>
         <maven.compiler.source>17</maven.compiler.source>
         <maven.compiler.target>17</maven.compiler.target>

src/main/java/ua/example/App.java

@@ -0,0 +1,9 @@
+package ua.example;
+
+import ua.example.game.TicTacToe;
+
+public class App {
+    public static void main(String[] args) {
+        new TicTacToe().startGame();
+    }
+}

src/main/java/ua/example/game/TicTacToe.java

@@ -0,0 +1,119 @@
+package ua.example.game;
+
+import java.util.Arrays;
+import java.util.Random;
+import java.util.Scanner;
+
+import static java.lang.System.in;
+import static java.lang.System.out;
+
+public class TicTacToe {
+    private final char[] box;
+    private final Scanner scanner;
+    private final Random random;
+    private final byte[][] winningCombinations = {
+            {0, 1, 2},
+            {3, 4, 5},
+            {6, 7, 8},
+            {0, 3, 6},
+            {1, 4, 7},
+            {2, 5, 8},
+            {0, 4, 8},
+            {2, 4, 6}
+    };
+
+    public TicTacToe(){
+        out.print("Enter box number to select. Enjoy!");
+        box = new char[]{'1', '2', '3', '4', '5', '6', '7', '8', '9'};
+        printBox();
+        Arrays.fill(box, ' ');
+        scanner = new Scanner(in);
+        random = new Random();
+    }
+
+    private void botMove() {
+        while (true) {
+            int rand = random.nextInt(0, 10);
+            if (box[rand] == ' ') {
+                box[rand] = 'O';
+                break;
+            }
+        }
+    }
+
+    private boolean canWeContinuePlaying() {
+        if (hasPlayerWon('O')) {
+            out.println("You lost the ua.example.game!\nCreated by Shreyas Saha. Thanks for playing!");
+            return false;
+        } else if (hasPlayerWon('X')) {
+            out.println("You won the ua.example.game!\nCreated by Shreyas Saha. Thanks for playing!");
+            return false;
+        } else if (isBoardFull()) {
+            out.println("It's a draw!\nCreated by Shreyas Saha. Thanks for playing!");
+            return false;
+        }
+
+        return true;
+    }
+
+    private boolean hasPlayerWon(char playerSymbol) {
+        for (byte[] combination : winningCombinations) {
+            if (box[combination[0]] == playerSymbol &&
+                    box[combination[1]] == playerSymbol &&
+                    box[combination[2]] == playerSymbol) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private boolean isBoardFull() {
+        for (byte i = 0; i < 9; i++) {
+            if (box[i] != 'X' && box[i] != 'O') {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    public void printBox() {
+        out.print("\n\n");
+        for (byte i = 0; i < box.length; i += 3) {
+            out.printf(" %s | %s | %s %n", box[i], box[i + 1], box[i + 2]);
+            if (i < 6) {
+                out.println("-----------");
+            }
+        }
+    }
+
+    public void inputScanner() {
+        while (true) {
+            out.print("\nPick the number(1 to 10): ");
+            byte input = scanner.nextByte();
+            int index = input - 1;
+
+            if (input >= 1 && input <= 9) {
+
+                if (box[index] == 'X' || box[index] == 'O')
+                    out.println("That one is already in use. Enter another.");
+                else {
+                    box[index] = 'X';
+                    break;
+                }
+            } else {
+                out.println("Invalid input. Enter again.");
+            }
+        }
+    }
+
+    public void startGame() {
+        while (true) {
+            inputScanner();
+            botMove();
+            printBox();
+            if (!canWeContinuePlaying()) {
+                break;
+            }
+        }
+    }
+}