From b9cc942a3b82de120c548bb980f1cb4abd5f01fe Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Wed, 24 Jan 2024 12:36:32 +0000
Subject: [PATCH 01/40] Add new directory

---
 src/main/c/GameTic_Tac_Toe/.gitkeep | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 src/main/c/GameTic_Tac_Toe/.gitkeep

diff --git a/src/main/c/GameTic_Tac_Toe/.gitkeep b/src/main/c/GameTic_Tac_Toe/.gitkeep
new file mode 100644
index 0000000..e69de29

From ebfdb2133a457dcc45f56d980572263c0ca30a12 Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Wed, 24 Jan 2024 12:45:27 +0000
Subject: [PATCH 02/40] Add new file

---
 src/main/c/GameTic_Tac_Toe/temp | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 src/main/c/GameTic_Tac_Toe/temp

diff --git a/src/main/c/GameTic_Tac_Toe/temp b/src/main/c/GameTic_Tac_Toe/temp
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/src/main/c/GameTic_Tac_Toe/temp
@@ -0,0 +1 @@
+

From 376d864b3a65658c1f6c50b5e182cbb9d365cf7a Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Wed, 24 Jan 2024 13:04:28 +0000
Subject: [PATCH 03/40] Delete temp

---
 src/main/c/GameTic_Tac_Toe/temp | 1 -
 1 file changed, 1 deletion(-)
 delete mode 100644 src/main/c/GameTic_Tac_Toe/temp

diff --git a/src/main/c/GameTic_Tac_Toe/temp b/src/main/c/GameTic_Tac_Toe/temp
deleted file mode 100644
index 8b13789..0000000
--- a/src/main/c/GameTic_Tac_Toe/temp
+++ /dev/null
@@ -1 +0,0 @@
-

From b50761f3182096294c5a2ad328b0e5d25ac548fd Mon Sep 17 00:00:00 2001
From: Ariana Ginju <temp@web.de>
Date: Wed, 24 Jan 2024 14:21:33 +0100
Subject: [PATCH 04/40] added global board

---
 src/main/c/GameTic_Tac_Toe/game.c | 6 ++++++
 1 file changed, 6 insertions(+)
 create mode 100644 src/main/c/GameTic_Tac_Toe/game.c

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
new file mode 100644
index 0000000..7d5c061
--- /dev/null
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -0,0 +1,6 @@
+#include <stdio.h>
+
+char board[3][3] = {{'1', '2', '3'},
+                    {'4', '5', '6'},
+                    {'7', '8', '9'}};
+char currentPlayer = 'X';

From 8957916a23fb9ac4b6548b6942b421cc5c0dad24 Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 11:44:47 +0000
Subject: [PATCH 05/40] display the game board

---
 src/main/c/GameTic_Tac_Toe/game.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index 7d5c061..aeec7e0 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -4,3 +4,16 @@ char board[3][3] = {{'1', '2', '3'},
                     {'4', '5', '6'},
                     {'7', '8', '9'}};
 char currentPlayer = 'X';
+
+// Funktionen zur Anzeige des Spielbretts
+void displayBoard() {
+    printf("Tic-Tac-Toe\n");
+    for (int i = 0; i < 3; i++) {
+        for (int j = 0; j < 3; j++) {
+            printf("%c", board[i][j]);
+            if (j < 2) printf(" | ");
+        }
+        printf("\n");
+        if (i < 2) printf("---------\n");
+    }
+}

From a2b296651064ff9c44370ae4494e2bbb0b4a5e7e Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 11:45:48 +0000
Subject: [PATCH 06/40] Verification of the winner

---
 src/main/c/GameTic_Tac_Toe/game.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index aeec7e0..2937166 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -17,3 +17,6 @@ void displayBoard() {
         if (i < 2) printf("---------\n");
     }
 }
+
+// Funktion zur Überprüfung des Gewinners
+char checkWinner() {

From 2d7b1b0e8cda5029a6694ca40002147c4b37f86d Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 11:46:46 +0000
Subject: [PATCH 07/40] Check horizontal and vertical lines

---
 src/main/c/GameTic_Tac_Toe/game.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index 2937166..a08e501 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -20,3 +20,8 @@ void displayBoard() {
 
 // Funktion zur Überprüfung des Gewinners
 char checkWinner() {
+  // Überprüfe horizontale und vertikale Linien
+    for (int i = 0; i < 3; i++) {
+        if (board[i][0] == board[i][1] && board[i][1] == board[i][2]) return board[i][0];
+        if (board[0][i] == board[1][i] && board[1][i] == board[2][i]) return board[0][i];
+    }

From 00ee1fdb18c618c51a313b7a0faa1a1294286c34 Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 11:47:58 +0000
Subject: [PATCH 08/40] Check diagonal lines

---
 src/main/c/GameTic_Tac_Toe/game.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index a08e501..3f1dc5a 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -25,3 +25,7 @@ char checkWinner() {
         if (board[i][0] == board[i][1] && board[i][1] == board[i][2]) return board[i][0];
         if (board[0][i] == board[1][i] && board[1][i] == board[2][i]) return board[0][i];
     }
+     // Überprüfe diagonale Linien
+    if (board[0][0] == board[1][1] && board[1][1] == board[2][2]) return board[0][0];
+    if (board[0][2] == board[1][1] && board[1][1] == board[2][0]) return board[0][2];
+

From 22ce5b5fc45d3de430691a3439044bfb96a2d4f7 Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 11:52:41 +0000
Subject: [PATCH 09/40] No winner

---
 src/main/c/GameTic_Tac_Toe/game.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index 3f1dc5a..a91ba51 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -29,3 +29,6 @@ char checkWinner() {
     if (board[0][0] == board[1][1] && board[1][1] == board[2][2]) return board[0][0];
     if (board[0][2] == board[1][1] && board[1][1] == board[2][0]) return board[0][2];
 
+ // Kein Gewinner
+    return ' ';
+}

From f770bfd5d647d60b268f0a267b006343b50c2aaa Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 11:58:28 +0000
Subject: [PATCH 10/40] Verification function

---
 src/main/c/GameTic_Tac_Toe/game.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index a91ba51..6432f7f 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -32,3 +32,15 @@ char checkWinner() {
  // Kein Gewinner
     return ' ';
 }
+
+// Funktion zur Überprüfung, ob das Spiel unentschieden ist
+int isBoardFull() {
+    for (int i = 0; i < 3; i++) {
+        for (int j = 0; j < 3; j++) {
+            if (board[i][j] != 'X' && board[i][j] != 'O') {
+                return 0;
+            }
+        }
+    }
+    return 1;
+}

From d75ff5cdbf9d229e47f300ecee996e83ec902ae4 Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 11:59:42 +0000
Subject: [PATCH 11/40] Function: A player's turn

---
 src/main/c/GameTic_Tac_Toe/game.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index 6432f7f..089012b 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -44,3 +44,11 @@ int isBoardFull() {
     }
     return 1;
 }
+
+
+// Funktion zum Zug eines Spielers
+void makeMove() {
+    int choice;
+    printf("Spieler %c, wähle eine Zahl (1-9): ", currentPlayer);
+    scanf("%d", &choice);
+

From 95c97636763ff420483d77a59bf813e4fac5b54d Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 12:00:33 +0000
Subject: [PATCH 12/40] Convert the number

---
 src/main/c/GameTic_Tac_Toe/game.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index 089012b..48035ae 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -52,3 +52,7 @@ void makeMove() {
     printf("Spieler %c, wähle eine Zahl (1-9): ", currentPlayer);
     scanf("%d", &choice);
 
+// Konvertiere die Zahl in Zeilen- und Spaltenindex
+    int row = (choice - 1) / 3;
+    int col = (choice - 1) % 3;
+

From c0df50c14754154612ecd07674579ea5abdeb251 Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 12:01:52 +0000
Subject: [PATCH 13/40] Check whether the selected field is valid

---
 src/main/c/GameTic_Tac_Toe/game.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index 48035ae..f0ddb37 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -56,3 +56,7 @@ void makeMove() {
     int row = (choice - 1) / 3;
     int col = (choice - 1) % 3;
 
+     // Überprüfe, ob das gewählte Feld gültig ist
+    if (choice >= 1 && choice <= 9 && board[row][col] != 'X' && board[row][col] != 'O') {
+       
+

From 68f804befc16b175915ddd7c4aa066c3b5667d32 Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 12:02:18 +0000
Subject: [PATCH 14/40] Update game.c

---
 src/main/c/GameTic_Tac_Toe/game.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index f0ddb37..5129548 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -58,5 +58,6 @@ void makeMove() {
 
      // Überprüfe, ob das gewählte Feld gültig ist
     if (choice >= 1 && choice <= 9 && board[row][col] != 'X' && board[row][col] != 'O') {
-       
+       board[row][col] = currentPlayer;
+    } else {
 

From 57ff8f28ae42deb751d92346429a7eb54dee673d Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 12:03:21 +0000
Subject: [PATCH 15/40] Invalid move

---
 src/main/c/GameTic_Tac_Toe/game.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index 5129548..51f5c7c 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -60,4 +60,7 @@ void makeMove() {
     if (choice >= 1 && choice <= 9 && board[row][col] != 'X' && board[row][col] != 'O') {
        board[row][col] = currentPlayer;
     } else {
-
+        printf("Ungültiger Zug! Bitte wähle erneut.\n");
+        makeMove();  // Rekursiver Aufruf, bis ein gültiger Zug gemacht wird
+    }
+}

From e99a489aa351de1759d2f54cc771860fb8a7e88b Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 12:04:05 +0000
Subject: [PATCH 16/40] Update main

---
 src/main/c/GameTic_Tac_Toe/game.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index 51f5c7c..85a08a2 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -64,3 +64,8 @@ void makeMove() {
         makeMove();  // Rekursiver Aufruf, bis ein gültiger Zug gemacht wird
     }
 }
+
+int main() {
+    while (1) {
+        displayBoard();
+        makeMove();

From 097e26462eaec31300dc48366252ef1f57ebbd12 Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 12:05:23 +0000
Subject: [PATCH 17/40] check winner

---
 src/main/c/GameTic_Tac_Toe/game.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index 85a08a2..215af00 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -69,3 +69,10 @@ int main() {
     while (1) {
         displayBoard();
         makeMove();
+
+        char winner = checkWinner();
+        if (winner == 'X' || winner == 'O') {
+            displayBoard();
+            printf("Spieler %c gewinnt!\n", winner);
+            break;
+        }

From c4c5255c32e69b0b45164e5fe6098ead52f76bcb Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 12:20:45 +0000
Subject: [PATCH 18/40] possibility: draw

---
 src/main/c/GameTic_Tac_Toe/game.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index 215af00..0f0d6f8 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -76,3 +76,9 @@ int main() {
             printf("Spieler %c gewinnt!\n", winner);
             break;
         }
+
+        if (isBoardFull()) {
+            displayBoard();
+            printf("Unentschieden!\n");
+            break;
+        }

From 44325c521fed24d036f30b85d670ff9f5af962e8 Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 12:22:57 +0000
Subject: [PATCH 19/40] Change player

---
 src/main/c/GameTic_Tac_Toe/game.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index 0f0d6f8..b20f125 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -82,3 +82,10 @@ int main() {
             printf("Unentschieden!\n");
             break;
         }
+
+         // Wechsle den Spieler
+        currentPlayer = (currentPlayer == 'X') ? 'O' : 'X';
+    }
+
+    return 0;
+}

From eb9a2755fe911b7b7760353dc20384acbea304d5 Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 16:57:40 +0000
Subject: [PATCH 20/40] refactoring: lear condition for an invalid move

---
 src/main/c/GameTic_Tac_Toe/game.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index b20f125..11d2a79 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -57,11 +57,11 @@ void makeMove() {
     int col = (choice - 1) % 3;
 
      // Überprüfe, ob das gewählte Feld gültig ist
-    if (choice >= 1 && choice <= 9 && board[row][col] != 'X' && board[row][col] != 'O') {
-       board[row][col] = currentPlayer;
-    } else {
-        printf("Ungültiger Zug! Bitte wähle erneut.\n");
+    if (choice < 1 || choice > 9 || board[row][col] == 'X' || board[row][col] == 'O') {
+       printf("Ungültiger Zug! Bitte wähle erneut.\n");
         makeMove();  // Rekursiver Aufruf, bis ein gültiger Zug gemacht wird
+     } else {
+        board[row][col] = currentPlayer;
     }
 }
 

From 5567f10afcad179c0a7def3929b264a963b207a5 Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 17:05:35 +0000
Subject: [PATCH 21/40] refactoring: using else and if

---
 src/main/c/GameTic_Tac_Toe/game.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index 11d2a79..278b1e5 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -27,7 +27,7 @@ char checkWinner() {
     }
      // Überprüfe diagonale Linien
     if (board[0][0] == board[1][1] && board[1][1] == board[2][2]) return board[0][0];
-    if (board[0][2] == board[1][1] && board[1][1] == board[2][0]) return board[0][2];
+    else if (board[0][2] == board[1][1] && board[1][1] == board[2][0]) return board[0][2];
 
  // Kein Gewinner
     return ' ';

From 4af8ceda5d461297fa85ba5c0bf158a4874f1090 Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 17:15:30 +0000
Subject: [PATCH 22/40] refactoring: using an auxiliary feature for win
 conditions

---
 src/main/c/GameTic_Tac_Toe/game.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index 278b1e5..0765c17 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -17,13 +17,19 @@ void displayBoard() {
         if (i < 2) printf("---------\n");
     }
 }
-
+char checkLine(char a, char b, char c) {
+    if (a == b && b == c) return a;
+    return ' ';
+}
 // Funktion zur Überprüfung des Gewinners
 char checkWinner() {
   // Überprüfe horizontale und vertikale Linien
-    for (int i = 0; i < 3; i++) {
-        if (board[i][0] == board[i][1] && board[i][1] == board[i][2]) return board[i][0];
-        if (board[0][i] == board[1][i] && board[1][i] == board[2][i]) return board[0][i];
+     for (int i = 0; i < 3; i++) {
+        char horizontalWinner = checkLine(board[i][0], board[i][1], board[i][2]);
+        char verticalWinner = checkLine(board[0][i], board[1][i], board[2][i]);
+
+        if (horizontalWinner != ' ') return horizontalWinner;
+        if (verticalWinner != ' ') return verticalWinner;
     }
      // Überprüfe diagonale Linien
     if (board[0][0] == board[1][1] && board[1][1] == board[2][2]) return board[0][0];

From ad6d3bbdcfe3e7aad435dee8e30e4bcfb7ff818a Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 17:18:52 +0000
Subject: [PATCH 23/40] refactoring: using an auxiliary function for diagonal
 lines

---
 src/main/c/GameTic_Tac_Toe/game.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index 0765c17..215f890 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -32,8 +32,11 @@ char checkWinner() {
         if (verticalWinner != ' ') return verticalWinner;
     }
      // Überprüfe diagonale Linien
-    if (board[0][0] == board[1][1] && board[1][1] == board[2][2]) return board[0][0];
-    else if (board[0][2] == board[1][1] && board[1][1] == board[2][0]) return board[0][2];
+    char diagonal1Winner = checkLine(board[0][0], board[1][1], board[2][2]);
+    char diagonal2Winner = checkLine(board[0][2], board[1][1], board[2][0]);
+
+    if (diagonal1Winner != ' ') return diagonal1Winner;
+    if (diagonal2Winner != ' ') return diagonal2Winner;
 
  // Kein Gewinner
     return ' ';

From a6c12ae026290794ac6649cdae8e9da72d85f285 Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 17:43:49 +0000
Subject: [PATCH 24/40] refactoring: logic functions for player exchange

---
 src/main/c/GameTic_Tac_Toe/game.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index 215f890..a3f3ae2 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -56,6 +56,10 @@ int isBoardFull() {
 
 
 // Funktion zum Zug eines Spielers
+char switchPlayer(char currentPlayer) {
+    return (currentPlayer == 'X') ? 'O' : 'X';
+}
+
 void makeMove() {
     int choice;
     printf("Spieler %c, wähle eine Zahl (1-9): ", currentPlayer);
@@ -71,6 +75,7 @@ void makeMove() {
         makeMove();  // Rekursiver Aufruf, bis ein gültiger Zug gemacht wird
      } else {
         board[row][col] = currentPlayer;
+        currentPlayer = switchPlayer(currentPlayer);
     }
 }
 

From 6e55a92f3ee10ff8330579b75aec2beff2e2b58d Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 17:53:55 +0000
Subject: [PATCH 25/40] refactoring: separation of the game loop into functions

---
 src/main/c/GameTic_Tac_Toe/game.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index a3f3ae2..f193efa 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -79,7 +79,7 @@ void makeMove() {
     }
 }
 
-int main() {
+void playGame() {
     while (1) {
         displayBoard();
         makeMove();
@@ -95,11 +95,10 @@ int main() {
             displayBoard();
             printf("Unentschieden!\n");
             break;
-        }
-
-         // Wechsle den Spieler
-        currentPlayer = (currentPlayer == 'X') ? 'O' : 'X';
+        }        
     }
-
+}
+int main(){
+    playGame();
     return 0;
 }

From 36d75c111cbcc1a583de5762d5d8ef4b44f708c1 Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 17:56:28 +0000
Subject: [PATCH 26/40] refactoring: using const

---
 src/main/c/GameTic_Tac_Toe/game.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index f193efa..f20e298 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -43,9 +43,11 @@ char checkWinner() {
 }
 
 // Funktion zur Überprüfung, ob das Spiel unentschieden ist
+const int BOARD_SIZE = 3;
+
 int isBoardFull() {
-    for (int i = 0; i < 3; i++) {
-        for (int j = 0; j < 3; j++) {
+    for (int i = 0; i < BOARD_SIZE; i++) {
+        for (int j = 0; j < BOARD_SIZE; j++) {
             if (board[i][j] != 'X' && board[i][j] != 'O') {
                 return 0;
             }

From 6c7fc28dc481897bcb97ca729968930eb764239c Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 18:04:27 +0000
Subject: [PATCH 27/40] refactoring: Clear condition in makeMove

---
 src/main/c/GameTic_Tac_Toe/game.c | 28 +++++++++++++++++-----------
 1 file changed, 17 insertions(+), 11 deletions(-)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index f20e298..ece4bb7 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -62,22 +62,28 @@ char switchPlayer(char currentPlayer) {
     return (currentPlayer == 'X') ? 'O' : 'X';
 }
 
+int isValidMove(int choice) {
+    int row = (choice - 1) / BOARD_SIZE;
+    int col = (choice - 1) % BOARD_SIZE;
+    
+    return (choice >= 1 && choice <= BOARD_SIZE * BOARD_SIZE && board[row][col] != 'X' && board[row][col] != 'O');
+}
+
 void makeMove() {
     int choice;
-    printf("Spieler %c, wähle eine Zahl (1-9): ", currentPlayer);
+    printf("Spieler %c, waehle eine Zahl (1-9): ", currentPlayer);
     scanf("%d", &choice);
 
 // Konvertiere die Zahl in Zeilen- und Spaltenindex
-    int row = (choice - 1) / 3;
-    int col = (choice - 1) % 3;
-
-     // Überprüfe, ob das gewählte Feld gültig ist
-    if (choice < 1 || choice > 9 || board[row][col] == 'X' || board[row][col] == 'O') {
-       printf("Ungültiger Zug! Bitte wähle erneut.\n");
-        makeMove();  // Rekursiver Aufruf, bis ein gültiger Zug gemacht wird
-     } else {
-        board[row][col] = currentPlayer;
-        currentPlayer = switchPlayer(currentPlayer);
+if (isValidMove(choice)) {
+    int row = (choice - 1) / / BOARD_SIZE;
+    int col = (choice - 1) % % BOARD_SIZE;
+     board[row][col] = currentPlayer;
+     currentPlayer = switchPlayer(currentPlayer);
+
+} else {
+    printf("Ungueltiger Zug! Bitte waehle erneut.\n");
+    makeMove();  // Rekursiver Aufruf, bis ein gültiger Zug gemacht wird
     }
 }
 

From 18a2eeaa64286be27a672a14db8e5d93166e5d17 Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 18:07:39 +0000
Subject: [PATCH 28/40] Update: corrected errors

---
 src/main/c/GameTic_Tac_Toe/game.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index ece4bb7..e56e55f 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -76,8 +76,8 @@ void makeMove() {
 
 // Konvertiere die Zahl in Zeilen- und Spaltenindex
 if (isValidMove(choice)) {
-    int row = (choice - 1) / / BOARD_SIZE;
-    int col = (choice - 1) % % BOARD_SIZE;
+    int row = (choice - 1) / BOARD_SIZE;
+    int col = (choice - 1) % BOARD_SIZE;
      board[row][col] = currentPlayer;
      currentPlayer = switchPlayer(currentPlayer);
 

From 1abf73507ee06529b853a80e64fbae52006217dc Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 18:14:59 +0000
Subject: [PATCH 30/40] refactoring: Using const for game symbol constants

---
 src/main/c/GameTic_Tac_Toe/game.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index e56e55f..ec98aec 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -4,7 +4,8 @@ char board[3][3] = {{'1', '2', '3'},
                     {'4', '5', '6'},
                     {'7', '8', '9'}};
 char currentPlayer = 'X';
-
+const char PLAYER_X = 'X';
+const char PLAYER_O = 'O';
 // Funktionen zur Anzeige des Spielbretts
 void displayBoard() {
     printf("Tic-Tac-Toe\n");

From 98533bbc98c2651716fbe3ed42f4f902a0cfb337 Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 18:16:46 +0000
Subject: [PATCH 31/40] refactoring: Removing the currentPlayer global variable

---
 src/main/c/GameTic_Tac_Toe/game.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index ec98aec..8615cb8 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -60,7 +60,7 @@ int isBoardFull() {
 
 // Funktion zum Zug eines Spielers
 char switchPlayer(char currentPlayer) {
-    return (currentPlayer == 'X') ? 'O' : 'X';
+    return (currentPlayer == PLAYER_X) ? PLAYER_O : PLAYER_X;
 }
 
 int isValidMove(int choice) {

From 6a843132cff3f0493108d4e31870d35d49c0f615 Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 18:20:35 +0000
Subject: [PATCH 32/40] refactoring: Using a loop

---
 src/main/c/GameTic_Tac_Toe/game.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index 8615cb8..177acc8 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -6,16 +6,22 @@ char board[3][3] = {{'1', '2', '3'},
 char currentPlayer = 'X';
 const char PLAYER_X = 'X';
 const char PLAYER_O = 'O';
+
 // Funktionen zur Anzeige des Spielbretts
 void displayBoard() {
     printf("Tic-Tac-Toe\n");
-    for (int i = 0; i < 3; i++) {
-        for (int j = 0; j < 3; j++) {
+    for (int i = 0; i < BOARD_SIZE; i++) {
+        for (int j = 0; j < BOARD_SIZE; j++) {
             printf("%c", board[i][j]);
-            if (j < 2) printf(" | ");
-        }
+            if (j < BOARD_SIZE - 1) printf(" | ");
+       }
         printf("\n");
-        if (i < 2) printf("---------\n");
+        if (i < BOARD_SIZE - 1) {
+            for (int k = 0; k < BOARD_SIZE * 4 - 1; k++) {
+                printf("-");
+            }
+            printf("\n");
+        }
     }
 }
 char checkLine(char a, char b, char c) {

From 6956db884ccb4754d4f78c00e834035ca2244b8d Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 18:35:42 +0000
Subject: [PATCH 33/40] refactoring: char replaced with enum

---
 src/main/c/GameTic_Tac_Toe/game.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index 177acc8..ea95618 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -24,14 +24,16 @@ void displayBoard() {
         }
     }
 }
+
 char checkLine(char a, char b, char c) {
     if (a == b && b == c) return a;
     return ' ';
 }
+
 // Funktion zur Überprüfung des Gewinners
 char checkWinner() {
   // Überprüfe horizontale und vertikale Linien
-     for (int i = 0; i < 3; i++) {
+     for (int i = 0; i < BOARD_SIZE; i++) {
         char horizontalWinner = checkLine(board[i][0], board[i][1], board[i][2]);
         char verticalWinner = checkLine(board[0][i], board[1][i], board[2][i]);
 
@@ -65,7 +67,7 @@ int isBoardFull() {
 
 
 // Funktion zum Zug eines Spielers
-char switchPlayer(char currentPlayer) {
+enum switchPlayer(enum currentPlayer) {
     return (currentPlayer == PLAYER_X) ? PLAYER_O : PLAYER_X;
 }
 

From 2ce9e44041607a5540c09bd2e23d749023f89b9b Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 18:44:21 +0000
Subject: [PATCH 34/40] refactoring: replacing larger parts

---
 src/main/c/GameTic_Tac_Toe/game.c | 35 ++++++++++++++++---------------
 1 file changed, 18 insertions(+), 17 deletions(-)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index ea95618..3b7f017 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -80,14 +80,14 @@ int isValidMove(int choice) {
 
 void makeMove() {
     int choice;
-    printf("Spieler %c, waehle eine Zahl (1-9): ", currentPlayer);
+    printf("Spieler %c, waehle eine Zahl (1-9): ", currentPlayer == PLAYER_X) ? 'X' : 'O');
     scanf("%d", &choice);
 
 // Konvertiere die Zahl in Zeilen- und Spaltenindex
 if (isValidMove(choice)) {
     int row = (choice - 1) / BOARD_SIZE;
     int col = (choice - 1) % BOARD_SIZE;
-     board[row][col] = currentPlayer;
+     board[row][col] = currentPlayer == PLAYER_X) ? 'X' : 'O';
      currentPlayer = switchPlayer(currentPlayer);
 
 } else {
@@ -96,25 +96,26 @@ if (isValidMove(choice)) {
     }
 }
 
+int isGameOver() {
+    char winner = checkWinner();
+    return (winner == PLAYER_X || winner == PLAYER_O || isBoardFull());
+}
+
+void printGameResult(char winner) {
+    if (winner == PLAYER_X || winner == PLAYER_O) {
+        printf("Spieler %c gewinnt!\n", (winner == PLAYER_X) ? 'X' : 'O');
+    } else {
+        printf("Unentschieden!\n");
+    }
+}
+
 void playGame() {
-    while (1) {
+    while (!isGameOver()) {
         displayBoard();
         makeMove();
-
-        char winner = checkWinner();
-        if (winner == 'X' || winner == 'O') {
-            displayBoard();
-            printf("Spieler %c gewinnt!\n", winner);
-            break;
-        }
-
-        if (isBoardFull()) {
-            displayBoard();
-            printf("Unentschieden!\n");
-            break;
-        }        
     }
-}
+
+    //Fehlt etwas, änderung folgt;
 int main(){
     playGame();
     return 0;

From 673de7e2e293f3540618bd7bdec3b39ec5fd28c6 Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 18:45:51 +0000
Subject: [PATCH 35/40] refactoring: added missing part

---
 src/main/c/GameTic_Tac_Toe/game.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index 3b7f017..f72b814 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -115,7 +115,11 @@ void playGame() {
         makeMove();
     }
 
-    //Fehlt etwas, änderung folgt;
+    displayBoard();
+    char winner = checkWinner();
+    printGameResult(winner);
+}
+
 int main(){
     playGame();
     return 0;

From b12449338944ee154d3da893562a62fd897012e8 Mon Sep 17 00:00:00 2001
From: fdai7775 <ariana.ginju@informatik.hs-fulda.de>
Date: Tue, 30 Jan 2024 19:14:53 +0000
Subject: [PATCH 36/40] refactoring: correct the errors

---
 src/main/c/GameTic_Tac_Toe/game.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/src/main/c/GameTic_Tac_Toe/game.c b/src/main/c/GameTic_Tac_Toe/game.c
index f72b814..443fe8d 100644
--- a/src/main/c/GameTic_Tac_Toe/game.c
+++ b/src/main/c/GameTic_Tac_Toe/game.c
@@ -1,5 +1,6 @@
 #include <stdio.h>
 
+const int BOARD_SIZE = 3;
 char board[3][3] = {{'1', '2', '3'},
                     {'4', '5', '6'},
                     {'7', '8', '9'}};
@@ -52,8 +53,6 @@ char checkWinner() {
 }
 
 // Funktion zur Überprüfung, ob das Spiel unentschieden ist
-const int BOARD_SIZE = 3;
-
 int isBoardFull() {
     for (int i = 0; i < BOARD_SIZE; i++) {
         for (int j = 0; j < BOARD_SIZE; j++) {
@@ -67,7 +66,7 @@ int isBoardFull() {
 
 
 // Funktion zum Zug eines Spielers
-enum switchPlayer(enum currentPlayer) {
+char switchPlayer(char currentPlayer) {
     return (currentPlayer == PLAYER_X) ? PLAYER_O : PLAYER_X;
 }
 
@@ -80,14 +79,14 @@ int isValidMove(int choice) {
 
 void makeMove() {
     int choice;
-    printf("Spieler %c, waehle eine Zahl (1-9): ", currentPlayer == PLAYER_X) ? 'X' : 'O');
+    printf("Spieler %c, waehle eine Zahl (1-9): ", (currentPlayer == PLAYER_X) ? 'X' : 'O');
     scanf("%d", &choice);
 
 // Konvertiere die Zahl in Zeilen- und Spaltenindex
 if (isValidMove(choice)) {
     int row = (choice - 1) / BOARD_SIZE;
     int col = (choice - 1) % BOARD_SIZE;
-     board[row][col] = currentPlayer == PLAYER_X) ? 'X' : 'O';
+     board[row][col] = (currentPlayer == PLAYER_X) ? 'X' : 'O';
      currentPlayer = switchPlayer(currentPlayer);
 
 } else {

From 66b03b0a20621e2660b7f2c9077a7023d8ce5da4 Mon Sep 17 00:00:00 2001
From: Ariana Ginju <ariana.ginju@informatik.hs-fulda.de>
Date: Wed, 31 Jan 2024 12:23:59 +0000
Subject: [PATCH 37/40] Add new directory

---
 test/tests_tictactoe.game/.gitkeep | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 test/tests_tictactoe.game/.gitkeep

diff --git a/test/tests_tictactoe.game/.gitkeep b/test/tests_tictactoe.game/.gitkeep
new file mode 100644
index 0000000..e69de29

From 5e74794e40fd23875ccb0ff5b9056fd47fe2c236 Mon Sep 17 00:00:00 2001
From: Ariana Ginju <ariana.ginju@informatik.hs-fulda.de>
Date: Wed, 31 Jan 2024 12:27:00 +0000
Subject: [PATCH 38/40] Delete .gitkeep

---
 test/tests_tictactoe.game/.gitkeep | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 delete mode 100644 test/tests_tictactoe.game/.gitkeep

diff --git a/test/tests_tictactoe.game/.gitkeep b/test/tests_tictactoe.game/.gitkeep
deleted file mode 100644
index e69de29..0000000

From d6dd92dc1e6a83cac81770d4236ab31892ad02b1 Mon Sep 17 00:00:00 2001
From: Ariana Ginju <ariana.ginju@informatik.hs-fulda.de>
Date: Wed, 31 Jan 2024 12:28:08 +0000
Subject: [PATCH 39/40] Add new file

---
 test/test_tictactoe.c | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 test/test_tictactoe.c

diff --git a/test/test_tictactoe.c b/test/test_tictactoe.c
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/test/test_tictactoe.c
@@ -0,0 +1 @@
+