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