David Alves/DrawingBot

1. Extend DrawingBot.

2. Call the drawing functions you want in your code, for example YourRobotsName.drawText("Hello, World!, 100, 100, Color.WHITE);

3. Run Robocode and click the "Paint" button in your robot's console to turn on graphics for your bot and you'll see the graphics appear.

An example of how to use this is /LinearTargetingBot.

package davidalves.sample;

import robocode.*;
import java.util.*;
import java.awt.*;
import java.awt.geom.Point2D;
import java.io.*;

public class DrawingBot extends TeamRobot{
	public DrawingBot(){
		renderables = new Vector();
	}
	
	private static abstract class Renderable{
	public abstract void render(Graphics2D g);
	
	private static class Circle extends Renderable{
		Point2D.Double center;
		double radius;
		Color color;
		public Circle(Point2D.Double center, double radius, Color color){
			this.center = center;
			this.radius = radius;
			this.color = color;
		}
		public void render(Graphics2D g) {
			g.setColor(color);
			g.drawOval(	(int)Math.round(center.x - radius),
						(int)Math.round(center.y - radius),
						(int)Math.round(2 * radius),
						(int)Math.round(2 * radius));
		}
	}
	
	private static class Dot extends Renderable{
		Point2D.Double point;
		double radius;
		Color color;
		public Dot(Point2D.Double point, Color color){
			this.point = point;
			this.radius = 2;
			this.color = color;
		}
		public void render(Graphics2D g) {
			g.setColor(color);
			g.fillOval(	(int)Math.round(point.x - radius),
						(int)Math.round(point.y - radius),
						(int)Math.round(2 * radius),
						(int)Math.round(2 * radius));
		}
	}
	
	private static class Line extends Renderable{
		Point2D.Double p1, p2;
		Color color;
		
		double radius;
		public Line(Point2D.Double p1, Point2D.Double p2, Color color){
			this.p1 = p1;
			this.p2 = p2;
			this.color = color;
		}
		public void render(Graphics2D g) {
			g.setColor(color);
			g.drawLine(	(int)Math.round(p1.x),
						(int)Math.round(p1.y),
						(int)Math.round(p2.x),
						(int)Math.round(p2.y));
		}
	}
	
	private static class Text extends Renderable{
		String text;
		double x, y;
		Color color;
		
		double radius;
		public Text(String text, double x, double y, Color color){
			this.text = text;
			this.x = x;
			this.y = y;
			this.color = color;
		}
		public void render(Graphics2D g) {
			g.setColor(color);
			g.drawString(text, (float)x, (float)y);
		}
	}
	}
	
	
	
	public static Vector renderables;
	
	
	public void onPaint(Graphics2D g){
		Iterator i = renderables.iterator();
		while(i.hasNext()){
			Renderable r = (Renderable) i.next();
			r.render(g);
		}
		renderables.clear();
	}
	
	public static void drawLine(Point2D.Double p1, Point2D.Double p2, Color color){
		renderables.add(new Renderable.Line(p1, p2, color));
	}
	
	public static void drawCircle(Point2D.Double center, double radius, Color color){
		renderables.add(new Renderable.Circle(center, radius, color));
	}
	
	public static void drawPoint(Point2D.Double p1, Color color){
		renderables.add(new Renderable.Dot(p1, color));
	}
	
	public static void drawText(String text, double x, double y, Color color){
		renderables.add(new Renderable.Text(text, x, y, color));
	}
}