public void move() {
Vector2 nextDirection =
Vector2.add(new Vector2(getHead().getX(), getHead().getY()), _direction);
if (nextDirection.x < SNAKE_WIDTH * 2
|| nextDirection.x >= _mapWidth - SNAKE_WIDTH * 2
|| nextDirection.y < SNAKE_WIDTH * 2
|| nextDirection.y >= _mapHeight - SNAKE_WIDTH * 2) {
turned();
return;
}
if (_steps == 0) {
turned();
}
_steps++;
boolean isTurned = false;
if (_steps >= SNAKE_WIDTH) {
_steps = 0;
isTurned = true;
}
_body.move(isTurned);
}
