// CSE 142 Lecture 6
// More Parameters, Graphics

import java.awt.*; // for Graphics and Color

// We didn't actually talk about this in lecture.
// Somebody asked me at the end of class if it was possible to
// draw a circle where each quarter of the circle was a different
// color. The answer is yes, Graphics has a fillArc method.
public class QuarterCircle {
	public static final int TOP_LEFT = 25;
	public static final int WIDTH_HEIGHT = 150;
	public static final int QUARTER = 90;
	
	public static void main(String[] args) {
		DrawingPanel p = new DrawingPanel(200, 200);
		Graphics g = p.getGraphics();
		
		g.setColor(Color.GREEN);
		drawQuarter(g, 45);
		g.setColor(Color.RED);
		drawQuarter(g, 135);
		g.setColor(Color.BLUE);
		drawQuarter(g, 225);
		g.setColor(Color.ORANGE);
		drawQuarter(g, 315);
	}
	
	// Draws a quarter of a circle starting at startAngle and proceeding
	// counter-clockwise.
	public static void drawQuarter(Graphics g, int startAngle) {
		g.fillArc(TOP_LEFT, TOP_LEFT, WIDTH_HEIGHT, WIDTH_HEIGHT, startAngle, QUARTER);
	}
}