80 lines
1.7 KiB
Java
80 lines
1.7 KiB
Java
import java.awt.event.KeyEvent;
|
|
import java.util.LinkedList;
|
|
|
|
public class Snake {
|
|
|
|
private int headX;
|
|
private int headY;
|
|
|
|
private Cell[][] grid;
|
|
|
|
LinkedList<Cell> snakeCells;
|
|
|
|
private int length;
|
|
private SnakePanel parent;
|
|
private int direction = KeyEvent.VK_RIGHT;
|
|
|
|
public Snake(SnakePanel parent) {
|
|
this.parent = parent;
|
|
this.grid = parent.getGrid();
|
|
|
|
length = 3;
|
|
headX = parent.sizeX / 2;
|
|
headY = parent.sizeY / 2;
|
|
|
|
snakeCells = new LinkedList<Cell>();
|
|
|
|
grid[headY][headX].setType(CellType.SNAKE);
|
|
snakeCells.addFirst(grid[headX][headY]);
|
|
}
|
|
|
|
public int getDirection() {
|
|
return direction;
|
|
}
|
|
|
|
public void setDirection(int direction) {
|
|
this.direction = direction;
|
|
}
|
|
|
|
public void performMove() {
|
|
switch (direction) {
|
|
case (KeyEvent.VK_RIGHT):
|
|
headX++;
|
|
break;
|
|
|
|
case (KeyEvent.VK_LEFT):
|
|
headX--;
|
|
break;
|
|
|
|
case (KeyEvent.VK_UP):
|
|
headY--;
|
|
break;
|
|
|
|
case (KeyEvent.VK_DOWN):
|
|
headY++;
|
|
break;
|
|
}
|
|
|
|
if (headY >= parent.sizeY || headX >= parent.sizeX) {
|
|
parent.gameOver();
|
|
return;
|
|
}
|
|
Cell newCell = grid[headY][headX];
|
|
|
|
if (newCell == null || newCell.getType() == CellType.SNAKE) {
|
|
parent.gameOver();
|
|
return;
|
|
}
|
|
|
|
snakeCells.addFirst(newCell);
|
|
newCell.setType(CellType.SNAKE);
|
|
newCell.repaint();
|
|
|
|
if (snakeCells.size() > length) {
|
|
Cell c = snakeCells.removeLast();
|
|
c.setType(CellType.EMPTY);
|
|
c.repaint();
|
|
}
|
|
}
|
|
}
|