public class ObjectParameters {
    private final int x;
    private final int y;
    private final int width;
    private final int height;
    public int leftBorder() {
        return x;
    }
    public int topBorder() {
        return y;
    }
    public int rightBorder() {
        return x + width;
    }
    public int downBorder() {
        return y + height;
    }
    public int objectMiddleHorizontal() {
        return x + width / 2;
    }
    public int objectMiddleVertical() {
        return y + height / 2;
    }
    public ObjectParameters(int x, int y, int width, int height) {
        this.x = x;
        this.y = y;
        this.width = width;
        this.height = height;
    }
}