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183 lines
4.4 KiB
183 lines
4.4 KiB
package de.tims.tictactoe;
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import java.awt.GridLayout;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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import javax.swing.JButton;
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import javax.swing.JOptionPane;
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import javax.swing.JPanel;
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public class GameLogic implements ActionListener {
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private static final char EMPTY_FIELD = '-';
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private static final char PLAYER_1 = 'x';
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private static final char PLAYER_2 = 'o';
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private char[][] board;
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private final char[] occupiedFields = { PLAYER_1, PLAYER_2 };
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private char currentPlayer = PLAYER_1;
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private boolean gui = false;
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private JButton[][] fields;
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private JPanel contentPanel;
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public GameLogic(int size) {
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if (size < 3) {
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size = 3;
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}
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this.board = new char[size][size];
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this.resetBoard();
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}
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public GameLogic(char[][] board) {
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this.board = board;
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}
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public char[][] getBoard() {
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return this.board;
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}
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public int countFields() {
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return this.board[0].length * this.board.length;
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}
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public void setField(int column, int row, char player) {
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if (this.fieldIsEmpty(column, row)) {
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this.board[column][row] = player;
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if (gui) {
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this.fields[column][row].setText("" + this.getCurrentPlayer());
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this.updateGUI();
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}
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}
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}
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public boolean fieldIsEmpty(int column, int row) {
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for (char field : this.occupiedFields) {
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if (this.board[column][row] == field)
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return false;
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}
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return true;
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}
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public boolean checkForWin(char player) {
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boolean won = false;
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int countFields = 0;
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// check columns
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for (int i = 0; i < this.board.length; i++) {
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for (int j = 0; j < this.board[0].length; j++) {
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if (this.board[j][i] == player)
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countFields++;
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}
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if (countFields == this.board.length)
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return won = true;
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countFields = 0;
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}
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// check rows
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for (int i = 0; i < this.board[0].length; i++) {
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for (int j = 0; j < this.board.length; j++) {
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if (this.board[i][j] == player)
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countFields++;
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}
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if (countFields == this.board.length)
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return won = true;
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countFields = 0;
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}
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// check diagonal left
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for (int i = this.board.length - 1, j = this.board.length - 1; i >= 0; i--, j--) {
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if (this.board[i][j] == player)
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countFields++;
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}
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if (countFields == this.board.length)
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return won = true;
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countFields = 0;
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// check diagonal right
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for (int i = this.board.length - 1, j = 0; i >= 0; i--, j++) {
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if (this.board[i][j] == player)
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countFields++;
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}
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if (countFields == this.board.length)
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return won = true;
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return won;
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}
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public boolean checkEndOfGame() {
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return this.checkForWin(PLAYER_1) || this.checkForWin(PLAYER_2);
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}
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public char getCurrentPlayer() {
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return this.currentPlayer;
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}
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public void switchPlayer() {
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this.currentPlayer = this.currentPlayer == PLAYER_1 ? PLAYER_2 : PLAYER_1;
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}
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public void resetBoard() {
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for (int i = 0; i < this.board.length; i++) {
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for (int j = 0; j < this.board.length; j++) {
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this.board[i][j] = EMPTY_FIELD;
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}
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}
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}
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public JPanel generateGUI() {
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this.fields = new JButton[this.board.length][this.board.length];
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this.contentPanel = new JPanel();
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this.contentPanel.setLayout(new GridLayout(this.board.length, this.board.length));
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for (int i = 0; i < this.fields.length; i++) {
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for (int j = 0; j < this.fields.length; j++) {
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this.fields[i][j] = new JButton();
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this.fields[i][j].addActionListener(this);
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this.contentPanel.add(this.fields[i][j]);
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}
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}
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this.gui = true;
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return this.contentPanel;
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}
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public JButton getGUIField(int column, int row) {
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return this.fields[column][row];
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}
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private void updateGUI() {
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if (this.checkEndOfGame()) {
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for (int i = 0; i < this.fields.length; i++) {
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for (int j = 0; j < this.fields.length; j++) {
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this.fields[i][j].setEnabled(false);
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}
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}
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JOptionPane.showMessageDialog(contentPanel, "Spieler " + this.currentPlayer + " hat gewonnen.");
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this.resetGUI();
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}
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this.switchPlayer();
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}
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private void resetGUI() {
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for (int i = 0; i < this.fields.length; i++) {
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for (int j = 0; j < this.fields.length; j++) {
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this.resetBoard();
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this.fields[i][j].setText("");
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this.fields[i][j].setEnabled(true);
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}
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}
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this.switchPlayer();
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}
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@Override
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public void actionPerformed(ActionEvent e) {
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for (int i = 0; i < this.fields.length; i++) {
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for (int j = 0; j < this.fields[0].length; j++) {
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if (e.getSource() == this.fields[i][j]) {
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this.setField(i, j, currentPlayer);
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this.fields[i][j].getText();
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}
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}
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}
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}
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}
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