package FF_14312_Sinitsyna_Span;

import java.awt.*;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;

public class Circle implements Shape {
    int r = 0;
    int cx, cy;

    public Circle(int nx, int ny){
        cx = nx;
        cy = ny;
    }

    public void setR(int nr){
        r = nr;
    }
    public int getCx(){
        return cx;
    }

    public int getCy() {
        return cy;
    }

    @Override
    public void draw(Graphics g) {

            int x = 0, y = r, gap = 0, delta = (2 - 2 * r);
            while (y >= 0)
            {
                g.drawLine(cx+x, cy+y, cx+x, cy+y);

                g.drawLine(cx + x, cy - y, cx + x, cy - y);
                g.drawLine(cx - x, cy - y, cx - x, cy - y);
                g.drawLine(cx - x, cy + y,cx - x, cy + y);
                gap = 2 * (delta + y) - 1;
                if (delta < 0 && gap <= 0)
                {
                    x++;
                    delta += 2 * x + 1;
                    continue;
                }
                if (delta > 0 && gap > 0)
                {
                    y--;
                    delta -= 2 * y + 1;
                    continue;
                }
                x++;
                delta += 2 * (x - y);
                y--;
            }
        }

        public void write(BufferedWriter writer){
            try {
                writer.write("CIRCLE");
                writer.newLine();
                writer.write(cx+ " " + cy + " " + r);
                writer.newLine();

            } catch (IOException e) {
                e.printStackTrace();
            }
        }

    }