commit 8cdd4322099abad573a66151a391c72e50676ec3
Author: Emma Nora Theuer <git@entheuer.de>
Date:   Wed Sep 4 12:54:25 2024 +0200

    Initial Commit

diff --git a/TicTacToe.java b/TicTacToe.java
new file mode 100644
index 0000000..e4bb787
--- /dev/null
+++ b/TicTacToe.java
@@ -0,0 +1,195 @@
+import java.util.ArrayList;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.Scanner;
+import java.util.Random;
+
+public class TicTacToe {
+    private static ArrayList<String> freeSpaces;
+    private static Map<String, String> fullBoard;
+    private static Scanner input;
+
+   private static String player() {
+        while(true){
+            System.out.println(String.format("Make your move. Valid moves: {0}", freeSpaces));
+            String move = input.nextLine();
+            if (freeSpaces.contains(move)) {
+                return move;
+            } else {
+                System.out.println("The move you entered is not valid. Please enter a valid move.");
+            }
+        }
+    }
+
+    private static String ai() {
+        int rnd = new Random().nextInt(freeSpaces.size());
+        String[] tmpFreeSpaces = freeSpaces.toArray(new String[0]);
+        String move = tmpFreeSpaces[rnd];
+        System.out.println(move);
+        return move;
+    }
+
+    private static void handle(String playing, String move) {
+        switch (playing) {
+            case "player":
+                fullBoard.put(move, "X");
+                freeSpaces.remove(move);
+                break;
+            case "ai":
+                fullBoard.put(move, "O");
+                freeSpaces.remove(move);
+                break;
+        }
+    }
+
+
+    private static boolean checkForDraw() {
+        if (freeSpaces.size() == 0) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    private static String checkForWin() {
+        String a1Value = fullBoard.get("a1");
+        String a2Value = fullBoard.get("a2");
+        String a3Value = fullBoard.get("a3");
+        String b1Value = fullBoard.get("b1");
+        String b2Value = fullBoard.get("b2");
+        String b3Value = fullBoard.get("b3");
+        String c1Value = fullBoard.get("c1");
+        String c2Value = fullBoard.get("c2");
+        String c3Value = fullBoard.get("c3");
+
+        if (a1Value.equals("X") && a2Value.equals("X") && a3Value.equals("X")) {
+            return "player";
+        } else if (b1Value.equals("X") && b2Value.equals("X") && b3Value.equals("X")) {
+            return "player";
+        } else if (c1Value.equals("X") && c2Value.equals("X") && c3Value.equals("X")) {
+            return "player";
+        } else if (a1Value.equals("X") && b1Value.equals("X") && c1Value.equals("X")) {
+            return "player";
+        } else if (a2Value.equals("X") && b2Value.equals("X") && c2Value.equals("X")) {
+            return "player";
+        } else if (a3Value.equals("X") && b3Value.equals("X") && c3Value.equals("X")) {
+            return "player";
+        } else if (a1Value.equals("X") && b2Value.equals("X") && c3Value.equals("X")) {
+            return "player";
+        } else if (a3Value.equals("X") && b2Value.equals("X") && c1Value.equals("X")) {
+            return "player";
+        }
+
+        if (a1Value.equals("O") && a2Value.equals("O") && a3Value.equals("O")) {
+            return "ai";
+        } else if (b1Value.equals("O") && b2Value.equals("O") && b3Value.equals("O")) {
+            return "ai";
+        } else if (c1Value.equals("O") && c2Value.equals("O") && c3Value.equals("O")) {
+            return "ai";
+        } else if (a1Value.equals("O") && b1Value.equals("O") && c1Value.equals("O")) {
+            return "ai";
+        } else if (a2Value.equals("O") && b2Value.equals("O") && c2Value.equals("O")) {
+            return "ai";
+        } else if (a3Value.equals("O") && b3Value.equals("O") && c3Value.equals("O")) {
+            return "ai";
+        } else if (a1Value.equals("O") && b2Value.equals("O") && c3Value.equals("O")) {
+            return "ai";
+        } else if (a3Value.equals("O") && b2Value.equals("O") && c1Value.equals("O")) {
+            return "ai";
+        }
+
+        if (checkForDraw()){
+            return "draw";
+        }
+
+        return "none";
+    }
+
+    private static void showBoard() {
+        String a1Value = fullBoard.get("a1");
+        String a2Value = fullBoard.get("a2");
+        String a3Value = fullBoard.get("a3");
+        String b1Value = fullBoard.get("b1");
+        String b2Value = fullBoard.get("b2");
+        String b3Value = fullBoard.get("b3");
+        String c1Value = fullBoard.get("c1");
+        String c2Value = fullBoard.get("c2");
+        String c3Value = fullBoard.get("c3");
+        System.out.println("___1___2___3__");
+        System.out.printf("a| %s | %s | %s |\n", a1Value, a2Value, a3Value);
+        System.out.printf("b| %s | %s | %s |\n", b1Value, b2Value, b3Value);
+        System.out.printf("c| %s | %s | %s |\n", c1Value, c2Value, c3Value);
+        System.out.println("______________");
+    }
+
+    private static boolean processWin(String status) {
+        switch (status) {
+            case "player":
+                System.out.println("You have won! GG!");
+                showBoard();
+                return true;
+            case "ai":
+                System.out.println("You have lost against an AI that makes random moves. Shameful.");
+                showBoard();
+                return true;
+            case "draw":
+                System.out.println("It's a draw!");
+                showBoard();
+                return true;
+            default:
+                return false;
+        }
+    }
+
+// __a___b___c__
+//1| X | O | O |
+// _____________
+//2| O | X | X |
+// _____________
+//3| O | X | X |
+// _____________
+
+    public static void trueMain() {
+        while(true) {
+            showBoard();
+            handle("player", player());
+            if (processWin(checkForWin())) {
+                    break;
+            }
+
+            showBoard();
+            handle("ai", ai());
+            if (processWin(checkForWin())) {
+                    break;
+            }
+        }
+    }
+
+    public static void main(String args[]) {
+        fullBoard = new HashMap<>();
+        freeSpaces = new ArrayList<>();
+        input = new Scanner(System.in);
+        fullBoard.put("a1", " ");
+        fullBoard.put("a2", " ");
+        fullBoard.put("a3", " ");
+        fullBoard.put("b1", " ");
+        fullBoard.put("b2", " ");
+        fullBoard.put("b3", " ");
+        fullBoard.put("c1", " ");
+        fullBoard.put("c2", " ");
+        fullBoard.put("c3", " ");
+        fullBoard.put("a1", " ");
+        freeSpaces.add("a1");
+        freeSpaces.add("a2");
+        freeSpaces.add("a3");
+        freeSpaces.add("b1");
+        freeSpaces.add("b2");
+        freeSpaces.add("b3");
+        freeSpaces.add("c1");
+        freeSpaces.add("c2");
+        freeSpaces.add("c3");
+        trueMain();
+    }
+}
+
+