public static void drawCircle(Graphics g, int centerX, int centerY, int radius, Color color) {
		g.setColor(color);
		
		int x, y, d, dE, dSE;
		x = 0;
		y = radius;
		d = 1 - radius;
		dE = 3;
		dSE = -2*radius+5;
		simetry(g, x, y, centerX, centerY);
		while (y > x) {
			if (d < 0) {
				d += dE;
				dE += 2;
				dSE += 2;
				x += 1;
			} else {
				d += dSE;
				dE += 2;
				dSE += 4;
				x += 1;
				y += -1;
			}
			simetry(g, x, y, centerX, centerY);
		}
	}