Added functions to check if a ploayer has won and one to check if the board is full.

gameControl/check.go

@@ -1 +1,35 @@
 package gamecontrol
+
+// checks if a player has won the game
+func PlayerHasWon(board [3][3]string, player string) bool {
+	for i := 0; i < 3; i++ {
+		// check rows for a win
+		if board[i][0] == player && board[i][1] == player && board[i][2] == player {
+			return true
+		}
+		// check columns for a win
+		if board[0][i] == player && board[1][i] == player && board[2][i] == player {
+			return true
+		}
+	}
+	// check diagonals for a win
+	if board[0][0] == player && board[1][1] == player && board[2][2] == player {
+		return true
+	}
+	if board[0][2] == player && board[1][1] == player && board[2][0] == player {
+		return true
+	}
+	return false
+}
+
+// iterating through each field, checking if it is empty
+func BoardisFull(board [3][3]string) bool {
+	for i := 0; i < 3; i++ {
+		for j := 0; j < 3; j++ {
+			if board[i][j] == " " {
+				return false
+			}
+		}
+	}
+	return true
+}