private void connection() {
    for (int i = 0; i < b.toArray().length; i++) {
        if(b.get(i).r.intersects(play.b.get(i).x - 5 ,play.b.get(i).y,20,20) && b.get(i).connected){
            b.get(i).connected = true;
        }
    }
}

public abstract class block {

public int x,id;
public int y;
protected Image img;
public boolean remove;
public int rotate;
public Rectangle r;

protected int bx, by;

public static boolean connected = false;

public block() {
}

public abstract void tick();

public abstract void render(Graphics g);

public void createCollisionRect() {
    r.setBounds(x - (int) play.camx, y - (int) play.camy, 20, 20);
}

public class wall extends block {

public wall(int x, int y, int rot) {
    this.x = x;
    this.y = y;
    this.rotate = rot;
    r = new Rectangle(x - (int) play.camx, y - (int) play.camy, 20, 20);
    id = 0;
}

public void tick() {
    createCollisionRect();

    if (Comp.mr && r.contains(new Point((Comp.mx), (Comp.my)))) {
        remove = true;
    }



}

public void render(Graphics g) {
    ImageIcon i62 = new ImageIcon("res/tiles/wall.png");
    img = i62.getImage();
    g.drawImage(img, x - (int) play.camx, y - (int) play.camy, null);

    if(connected){
    g.setColor(Color.red);
     g.drawRect(x -(int)play.camx, y - play.camy, 20,20);
    }
}