import java.awt.*;

public class DrawingRollers implements IDrawingRollers {
    private RollersCount rollersCount;
    private Color color;

    public DrawingRollers(int rollersCount, Color bodyColor) {
        setRollersCount(rollersCount);
        color = bodyColor;
    }

    public void setRollersCount(int num) {
        if (num <= 4) {
            rollersCount = RollersCount.Four;
        } else if (num >= 6) {
            rollersCount = RollersCount.Six;
        } else {
            rollersCount = RollersCount.Five;
        }
    }

    public void draw(Graphics2D g, int x, int y, int artilleryWidth, int artilleryHeight) {
        g.setColor(color != null ? color : Color.BLACK);
        g.fillOval(x + artilleryWidth / 20, y + artilleryHeight * 7 / 15, artilleryWidth * 4 / 20, artilleryHeight * 10 / 32);
        g.fillOval(x + artilleryWidth * 15 / 20, y + artilleryHeight * 7 / 15, artilleryWidth * 4 / 20, artilleryHeight * 10 / 32);
        switch (rollersCount) {
            case Six: {
                g.fillOval(x + artilleryWidth * 8 / 20, y + artilleryHeight * 10 / 16, artilleryWidth * 2 / 20, artilleryHeight * 6 / 32);
            }
            case Five: {
                g.fillOval(x + artilleryWidth * 10 / 20, y + artilleryHeight * 10 / 16, artilleryWidth * 2 / 20, artilleryHeight * 6 / 32);
            }
            case Four: {
                g.fillOval(x + artilleryWidth * 5 / 20, y + artilleryHeight * 9 / 16, artilleryWidth * 3 / 20, artilleryHeight * 8 / 32);
                g.fillOval(x + artilleryWidth * 12 / 20, y + artilleryHeight * 9 / 16, artilleryWidth * 3 / 20, artilleryHeight * 8 / 32);
            }
        }
    }
}