public MainFrame() {
JTextField widthField = new JTextField();
widthField.setColumns(2);
JTextField heightField = new JTextField();
heightField.setColumns(2);
JCheckBox boundaryCheck = new JCheckBox();
Object[] dataIn = {"Width", widthField, "Height", heightField, "Boundaries?", boundaryCheck};
JOptionPane op =
new JOptionPane(
dataIn, JOptionPane.QUESTION_MESSAGE, JOptionPane.DEFAULT_OPTION, null, null);
JDialog dialog = op.createDialog(op, "Settings");
dialog.setVisible(true);
endAtWall = boundaryCheck.isSelected();
int width = Integer.parseInt(widthField.getText());
int height = Integer.parseInt(heightField.getText());
board = new boolean[width][height];
super.setSize(width * 15 + 80, height * 15 + 40);
super.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
start();
placeExtra();
gp = new GamePanel(board, images, snake);
mainPanel = new JPanel(new GridBagLayout());
GridBagConstraints mc = new GridBagConstraints();
mc.anchor = GridBagConstraints.NORTHWEST;
mc.gridx = 0;
mc.gridy = 0;
mainPanel.add(gp, mc);
mc.gridx = 1;
sp = new ScorePanel(score);
mainPanel.add(sp, mc);
super.add(mainPanel);
super.setVisible(true);
this.addKeyListener(
new KeyListener() {
public void keyPressed(KeyEvent e) {
if (e.getKeyCode() == KeyEvent.VK_RIGHT) {
snake[0].setDirection(4);
} else if (e.getKeyCode() == KeyEvent.VK_LEFT) {
snake[0].setDirection(3);
} else if (e.getKeyCode() == KeyEvent.VK_DOWN) {
snake[0].setDirection(1);
} else if (e.getKeyCode() == KeyEvent.VK_UP) {
snake[0].setDirection(2);
}
}
public void keyReleased(KeyEvent e) {}
public void keyTyped(KeyEvent e) {}
});
t.schedule(
new TimerTask() {
public void run() {
int[] loc = {
snake[snake.length - 1].getLocationx(), snake[snake.length - 1].getLocationy()
}; // old coordinates of last snake cell
for (int i = snake.length - 1; i > 0; i--) {
snake[i] =
new Snake(
snake[i - 1].getDirection(),
snake[i - 1].getLocationx(),
snake[i - 1].getLocationy());
} // makes each cell of the snake equal to the one ahead so that the very first cell is
// empty
if (endAtWall) {
switch (snake[1].getDirection()) { // assigns the first cell of the snake
case 1:
snake[0] =
new Snake(
snake[1].getDirection(),
snake[1].getLocationx(),
snake[1].getLocationy() + 1);
break;
case 2:
snake[0] =
new Snake(
snake[1].getDirection(),
snake[1].getLocationx(),
snake[1].getLocationy() - 1);
break;
case 3:
snake[0] =
new Snake(
snake[1].getDirection(),
snake[1].getLocationx() - 1,
snake[1].getLocationy());
break;
case 4:
snake[0] =
new Snake(
snake[1].getDirection(),
snake[1].getLocationx() + 1,
snake[1].getLocationy());
break;
}
} else {
switch (snake[1].getDirection()) { // assigns the first cell of the snake
case 1:
if (snake[1].getLocationy() + 1 == board[0].length) {
snake[0] = new Snake(snake[1].getDirection(), snake[1].getLocationx(), 0);
} else {
snake[0] =
new Snake(
snake[1].getDirection(),
snake[1].getLocationx(),
snake[1].getLocationy() + 1);
}
break;
case 2:
if (snake[1].getLocationy() - 1 == -1) {
snake[0] =
new Snake(
snake[1].getDirection(), snake[1].getLocationx(), board[0].length - 1);
} else {
snake[0] =
new Snake(
snake[1].getDirection(),
snake[1].getLocationx(),
snake[1].getLocationy() - 1);
}
break;
case 3:
if (snake[1].getLocationx() - 1 == -1) {
snake[0] =
new Snake(
snake[1].getDirection(), board.length - 1, snake[1].getLocationy());
} else {
snake[0] =
new Snake(
snake[1].getDirection(),
snake[1].getLocationx() - 1,
snake[1].getLocationy());
}
break;
case 4:
if (snake[1].getLocationx() + 1 == board.length) {
snake[0] = new Snake(snake[1].getDirection(), 0, snake[1].getLocationy());
} else {
snake[0] =
new Snake(
snake[1].getDirection(),
snake[1].getLocationx() + 1,
snake[1].getLocationy());
}
break;
}
}
if (snake[0].getLocationx() == extraSnake.getLocationx()
&& snake[0].getLocationy()
== extraSnake.getLocationy()) { // if the head hits the extra
Snake[] temp = new Snake[snake.length];
for (int i = 0; i < snake.length; i++) {
temp[i] =
new Snake(
snake[i].getDirection(), snake[i].getLocationx(), snake[i].getLocationy());
}
snake = new Snake[snake.length + 1];
for (int i = 0; i < temp.length; i++) {
snake[i] =
new Snake(
temp[i].getDirection(), temp[i].getLocationx(), temp[i].getLocationy());
} // copied snake array back to snake with 1 more space for the extra on the tail
switch (snake[snake.length - 2].getDirection()) {
case 1:
snake[snake.length - 1] =
new Snake(
snake[snake.length - 2].getDirection(),
snake[snake.length - 2].getLocationx(),
snake[snake.length - 2].getLocationy() - 1);
break;
case 2:
snake[snake.length - 1] =
new Snake(
snake[snake.length - 2].getDirection(),
snake[snake.length - 2].getLocationx(),
snake[snake.length - 2].getLocationy() + 1);
break;
case 3:
snake[snake.length - 1] =
new Snake(
snake[snake.length - 2].getDirection(),
snake[snake.length - 2].getLocationx() + 1,
snake[snake.length - 2].getLocationy());
break;
case 4:
snake[snake.length - 1] =
new Snake(
snake[snake.length - 2].getDirection(),
snake[snake.length - 2].getLocationx() - 1,
snake[snake.length - 2].getLocationy());
break;
}
extra = false;
if (snake[snake.length - 1].getLocationx() == -1) {
snake[snake.length - 1].setLocation(
board.length - 1, snake[snake.length - 1].getLocationy());
}
if (snake[snake.length - 1].getLocationy() == -1) {
snake[snake.length - 1].setLocation(
snake[snake.length - 1].getLocationx(), board[0].length - 1);
}
board[snake[snake.length - 1].getLocationx()][
snake[snake.length - 1].getLocationy()] =
false;
score++;
sp.refresh(score);
placeExtra();
}
boolean gameOver = false;
for (int i = 1; i < snake.length; i++) {
if (snake[0].getLocationx() == snake[i].getLocationx()
&& snake[0].getLocationy() == snake[i].getLocationy()) {
endGame();
gameOver = true;
}
}
if (endAtWall) {
if (snake[0].getLocationx() == board.length
|| snake[0].getLocationx() == -1
|| snake[0].getLocationy() == -1
|| snake[0].getLocationy() == board[0].length) {
endGame();
gameOver = true;
}
}
if (!gameOver) { // if the game isnt over, refresh
gp.Refresh(board, images, snake, loc, extraSnake, MainFrame.this);
}
}
},
1000,
100);
}
