GuessFactorBot.java

package Gamma;
import robocode.*;
//import java.awt.Color;
import java.awt.geom.*;
import robocode.util.Utils;
 
public class GuessFactorBot
{
	
	//setColors(Color.black,Color.blue,Color.red);
	
	private double startX, startY, startBearing, power;
	private long   fireTime;
	private int    direction;
	private int[]  returnSegment;
 
	public GuessFactorBot(double x, double y, double bearing, double power,
			int direction, long time, int[] segment)
	{
		startX         = x;
		startY         = y;
		startBearing   = bearing;
		this.power     = power;
		this.direction = direction;
		fireTime       = time;
		returnSegment  = segment;
	}
	
	public double getBulletSpeed()
		{
		return 20 - power * 3;
	}
 
	public double maxEscapeAngle()
	{
		return Math.asin(8 / getBulletSpeed());
	}

	public boolean checkHit(double enemyX, double enemyY, long currentTime)
	{
		// if the distance from the wave origin to our enemy has passed
		// the distance the bullet would have traveled...
		if (Point2D.distance(startX, startY, enemyX, enemyY) <= 
				(currentTime - fireTime) * getBulletSpeed())
		{
			double desiredDirection = Math.atan2(enemyX - startX, enemyY - startY);
			double angleOffset = Utils.normalRelativeAngle(desiredDirection - startBearing);
			double guessFactor =
				Math.max(-1, Math.min(1, angleOffset / maxEscapeAngle())) * direction;
			int index = (int) Math.round((returnSegment.length - 1) /2 * (guessFactor + 1));
			returnSegment[index]++;
			return true;
		}
		return false;
	}
} // end GuessFactorBot class