public Boolean isCollisionWithWalls(int changeX, int changeY) {
for (BlockElement e : this.getBlockElements()) {
if (e.getX() + changeX >= 10 || e.getX() + changeX < 0) return true;
if (e.getY() + changeY >= 20) return true;
}
return false;
}
public void move(int x, int y) {
if (!isCollisionWithWalls(x, y)) {
for (BlockElement e : this.getBlockElements()) {
e.setX(e.getX() + x);
e.setY(e.getY() + y);
}
}
}