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Tic-Tac-Toe/src/main/Board.java

@@ -86,4 +86,8 @@ public class Board {
 	public void clear() {
 		symbols = new char[3][3];
 	}
+
+	public char[][] getBoard() {
+		return symbols;
+	}
 }

Tic-Tac-Toe/src/main/MainMenu.java

@@ -1,33 +1,51 @@
 package main;
 
-import java.util.Scanner;
+public class MainMenu extends MenuScreen {
-
-public class MainMenu {
-
-	private boolean selecting;
 
 	public MainMenu() {
-
+		tabs = new String[4];
-		@SuppressWarnings("resource")
+		tabs[0] =  "Spielen";
-		Scanner s = new Scanner(System.in);
+		tabs[1] = "Gegen KI Spielen";
-		
+		tabs[2] = "Optionen";
-		selecting = true;
+		tabs[3] = "Beenden";
-		while (selecting) {
+		init();
-			printTitleScreen();
-			String in = s.next();
-			while (!in.equals("8") && !in.equals("2")) {
-				in = s.next();
-			}
-		}
 	}
 	
-	public void printTitleScreen() {
+	@Override
+	public void select(int tab) {
+		switch(tab) {
+		case 0:
+			new TicTacToe(TicTacToe.MODE_NORMAL);
+			break;
+		case 1:
+			new TicTacToe(TicTacToe.MODE_AI);
+			break;
+		case 2:
+			new Options();
+			break;
+		case 3:
+			stopLoop();
+			break;
+		}
+		cursorPos = 0;
+	}
+
+	@Override
+	public void printMenu() {
 		System.out.println(" _____ _        _____            _____         ");
 		System.out.println("|_   _|_|___   |_   _|___ ___   |_   _|___ ___ ");
 		System.out.println("  | | | |  _|    | | | .'|  _|    | | | . | -_|");
 		System.out.println("  |_| |_|___|    |_| |__,|___|    |_| |___|___|");
 		System.out.println();
-		System.out.println("(Use 8 & 2 to move)");
+		System.out.println("(8 = ^, 2 = v, 5 = enter)");
 		System.out.println();
+		for (int i = 0; i < tabs.length; i++) {
+			if (i == cursorPos) {
+				System.out.print(" > ");
+			} else {
+				System.out.print("   ");
+			}
+			System.out.println(tabs[i]);
+		}
 	}
 }

Tic-Tac-Toe/src/main/MenuScreen.java

@@ -0,0 +1,42 @@
+package main;
+
+import java.util.Scanner;
+
+public abstract class MenuScreen {
+	
+	Scanner scanner = new Scanner(System.in);
+
+	int cursorPos;
+	String[] tabs;
+	
+	private boolean runLoop;
+	
+	public void init() {
+		runLoop = true;
+		while (runLoop) {
+			printMenu();
+			String in = scanner.next();
+			while (!in.equals("8") && !in.equals("2") && !in.equals("5")) {
+				in = scanner.next();
+			}
+			if (in.equals("8")) {
+				if (cursorPos > 0) {
+					cursorPos--;
+				}
+			} else if (in.equals("2")) {
+				if (cursorPos < tabs.length - 1) {
+					cursorPos++;
+				}
+			} else {
+				select(cursorPos);
+			}
+		}
+	}
+	
+	public abstract void select(int tab);
+	public abstract void printMenu();
+	
+	public void stopLoop() {
+		runLoop = false;
+	}
+}

Tic-Tac-Toe/src/main/Options.java

@@ -0,0 +1,61 @@
+package main;
+
+public class Options extends MenuScreen {
+	
+	public static char player1Symbol;
+	public static char player2Symbol;
+	public static int boardSize;
+
+	public Options() {
+		cursorPos = 0;
+		tabs = new String[4];
+		tabs[0] = "Player 1 symbol";
+		tabs[1] = "Player 2 symbol";
+		tabs[2] = "Spielfeldgröße";
+		tabs[3] = "Zurück";
+		
+		player1Symbol = 'X';
+		player2Symbol = 'O';
+		boardSize = 4;
+		
+		init();
+	}
+
+	@Override
+	public void select(int tab) {
+		switch (tab) {
+		case 0:
+			player1Symbol = requestSymbol();
+			break;
+		case 1:
+			player2Symbol = requestSymbol();
+			break;
+		case 2:
+			break;
+		case 3:
+			break;
+		}
+	}
+	
+	private char requestSymbol() {
+		System.out.println("Bitte neues Symbol eingeben:");
+		return 0;
+		
+	}
+
+	@Override
+	public void printMenu() {
+		System.out.println();
+		System.out.println("Options");
+		System.out.println();
+		for (int i = 0; i < tabs.length; i++) {
+			if (cursorPos == i) {
+				System.out.print(" > ");
+			} else {
+				System.out.print("   ");
+			}
+			System.out.println(tabs[i]);
+		}
+	}
+
+}

Tic-Tac-Toe/src/main/PlayerAI.java

@@ -0,0 +1,20 @@
+package main;
+
+public class PlayerAI extends Player {
+	
+	private int nextMove;
+
+	public PlayerAI(char symbol) {
+		super(symbol);
+	}
+	
+	public void calculateNextMove(char[][] board) {
+		nextMove = 5;
+	}
+	
+	@Override
+	public int makeTurn() {
+		return nextMove;
+	}
+
+}

Tic-Tac-Toe/src/main/TicTacToe.java

@@ -8,12 +8,23 @@ public class TicTacToe {
 
 	private boolean running;
 	
-	public TicTacToe() {
+	public static final int MODE_NORMAL = 0;
+	public static final int MODE_AI = 1;
+
+	public TicTacToe(int mode) {
 
 		board = new Board();
 
+		switch(mode) {
+		case MODE_NORMAL:
 			player1 = new Player('X');
 			player2 = new Player('O');
+			break;
+		case MODE_AI:
+			player1 = new Player('X');
+			player2 = new PlayerAI('O');
+			break;
+		}
 		turn = player1;
 
 		running = true;
@@ -25,6 +36,9 @@ public class TicTacToe {
 	public void loop() {
 		board.draw();
 		turn.printTurnMessage();
+		if (turn instanceof PlayerAI) {
+			((PlayerAI)turn).calculateNextMove(board.getBoard());
+		}
 		int field = turn.makeTurn();
 		while (!board.isFieldFree(field)) {
 			board.draw();