Snake game source code using Java.
public class Game {
public static final int DIRECTION_NONE = 0, DIRECTION_RIGHT = 1,
DIRECTION_LEFT = -1, DIRECTION_UP = 2, DIRECTION_DOWN = -2;
private Snake snake;
private Board board;
private int direction;
private boolean gameOver;
public Game(Snake snake, Board board)
{
this.snake = snake;
this.board = board;
}
public Snake getSnake()
{
return snake;
}
public void setSnake(Snake snake)
{
this.snake = snake;
}
public Board getBoard()
{
return board;
}
public void setBoard(Board board)
{
this.board = board;
}
public boolean isGameOver()
{
return gameOver;
}
public void setGameOver(boolean gameOver)
{
this.gameOver = gameOver;
}
public int getDirection()
{
return direction;
}
public void setDirection(int direction)
{
this.direction = direction;
}
// We need to update the game at regular intervals,
// and accept user input from the Keyboard.
public void update()
{
System.out.println("Going to update the game");
if (!gameOver) {
if (direction != DIRECTION_NONE) {
Cell nextCell = getNextCell(snake.getHead());
if (snake.checkCrash(nextCell)) {
setDirection(DIRECTION_NONE);
gameOver = true;
}
else {
snake.move(nextCell);
if (nextCell.getCellType() == CellType.FOOD) {
snake.grow();
board.generateFood();
}
}
}
}
}
private Cell getNextCell(Cell currentPosition)
{
System.out.println("Going to find next cell");
int row = currentPosition.getRow();
int col = currentPosition.getCol();
if (direction == DIRECTION_RIGHT) {
col++;
}
else if (direction == DIRECTION_LEFT) {
col--;
}
else if (direction == DIRECTION_UP) {
row--;
}
else if (direction == DIRECTION_DOWN) {
row++;
}
Cell nextCell = board.getCells()[row][col];
return nextCell;
}
public static void main(String[] args)
{
System.out.println("Going to start game");
Cell initPos = new Cell(0, 0);
Snake initSnake = new Snake(initPos);
Board board = new Board(10, 10);
Game newGame = new Game(initSnake, board);
newGame.gameOver = false;
newGame.direction = DIRECTION_RIGHT;
// We need to update the game at regular intervals,
// and accept user input from the Keyboard.
// here I have just called the different methods
// to show the functionality
for (int i = 0; i < 5; i++) {
if (i == 2)
newGame.board.generateFood();
newGame.update();
if (i == 3)
newGame.direction = DIRECTION_RIGHT;
if (newGame.gameOver == true)
break;
}
}
}
