n this project, you’ll create data types in a class structure for cell-based board games similar to Tic-Tac-Toe. Games like Connect Four and Mastermind also use boards divided by rows and columns. The Board and Cell classes represent the board, while the Player, Mark, and Outcome enumerations track the game. You’ll use the classes and enumerations created in this project in future graded projects. You use the NetBeans project in the next lesson. INSTRUCTIONS 1. In NetBeans, create a new Java Application project named BoardGameTester. 2. Create a new package named games and a sub-package of games named board. The easiest way is simply to create a package named games.board. 3. Add an enumeration named Player to the games.board package. You could add Empty Java File or choose Java Enum as the file type. This enumeration represents the current player in a turn-based game. Use the follow- ing code: public enum Player {FIRST,SECOND} Note: Although Tic-Tac-Toe and Mastermind allow only two players, Connect Four can be played with up to four players. For simplicity, our code will handle only two players. 4. Add an enumeration named Outcome to the games.board package. This enumeration represents the result when the turn is completed. Use the following code: public enum Outcome {PLAYER1_WIN, PLAYER2_WIN, CONTINUE, TIE} 5. Add an enumeration named Mark to the games.board package. This enumeration represents the result when the game is completed. Use the following code: public enum Mark {EMPTY, NOUGHT, CROSS, YELLOW, RED, BLUE, GREEN, MAGENTA, ORANGE} Note: Yellow and red are used in Connect Four, while Mastermind uses all six colors. 6. Add the Cell class to the games.board package. It should have the private variables content, row, and column, and the public methods getContent, setContent, getRow, and getColumn. Use the following code as a guide: public class Cell { private Mark content; private int row, column; public Cell(int row, int column) { this.row = row; this.column = column; content = Mark.EMPTY; } public Mark getContent() { return content; } public void setContent(Mark content) { this.content = content; } public int getRow() { return row; } public int getColumn() { return column; } } Note: All classes that support direct instantiation should have a constructor. In this case, the constructor will be used by the Board class to create each of its cells. 7. Add the Board class to the games.board package. It should have a two-dimensional array of Cell objects. The Board class should initialize a board with a specified number of columns and rows, provide access to Cell objects, and display all of its cells correctly. Use the following code as a guide: public class Board { private Cell[][] cells; public Board(int rows, int columns) { cells = new Cell[rows][columns]; for( int r = 0; r < cells[0].length; r++ ) { for (int c = 0; c < cells[1].length; c++) { cells[r][c] = new Cell(r,c); } } } public void setCell(Mark mark, int row, int column) throws IllegalArgumentException { if (cells[row][column].getContent() == Mark.EMPTY) cells[row][column].setContent(mark); else throw new IllegalArgumentException(“Player already there!”); } public Cell getCell(int row, int column) { return cells[row][column]; } public String toString() { StringBuilder str = new StringBuilder(); for( int r = 0; r < cells.length; r++ ) { str.append(“|”); for (int c = 0; c < cells[r].length; c++) { switch(cells[r][c].getContent()) { case NOUGHT: str.append(“O”); break; case CROSS: str.append(“X”); break; case YELLOW: str.append(“Y”); break; case RED: str.append(“R”); break; case BLUE: str.append(“B”); break; case GREEN: str.append(“G”); break; case MAGENTA: str.append(“M”); break; case ORANGE: str.append(“M”); break; default: //Empty str.append(“ “); } str.append(“|”); } str.append(“n”); } return str.toString(); } } Note: This code should seem familiar to you. The meth- ods in the TicTacToeGame class are similar to those in the Board class. The StringBuilder class was used instead of the String class for better performance. You can learn more about the StringBuilder class by visiting the Oracle Website at http://docs.oracle.com/javase/ tutorial/java/data/buffers.html. 8. Add the following import statement to the BoardGameTester class: import games.boards.*; 9. In the main() method of BoardGameTester, perform the following actions: a. Create a 3 × 3 board for a Tic-Tac-Toe game. b. Create a 6 × 7 board for a Connect Four game. c. Create a 5 × 8 board for a game of Mastermind. d. Set a cell to a nought or cross on the Tic-Tac-Toe board. e. Set a cell to yellow or red on the Connect Four board. f. Set a cell to yellow, red, green, blue, magenta, or orange on the Mastermind board. g. Display the boards for Tic-Tac-Toe, Connect Four, and Mastermind. 10. Compile and run the project to ensure it works as expected. SUBMISSION GUIDELINES To submit your project, you must provide the following source code files in a ZIP file: ■ BoardGameTester.java ■ Board.java ■ Cell.java ■ Mark.java ■ Outcome.java ■ Player.java
