Robowiki - User contributions [en]

Thread:User talk:Rigged/little help/reply (11)

2012-06-19T16:56:45Z

Rigged: Reply to little help

<syntaxhighlight>Compiling...
Arg.java:32: package Point2D does not exist
public Point2D.Double guessPosition(long when) {
^
Arg.java:36: cannot find symbol
symbol : variable time
location: class argeaer.Arg
double diff = when - time;
^
Arg.java:40: cannot find symbol
symbol : variable changehead
location: class argeaer.Arg
if (Math.abs(changehead) > 0.00001) {
^
Arg.java:41: cannot find symbol
symbol : variable speed
location: class argeaer.Arg
double radius = speed/changehead;
^
Arg.java:41: cannot find symbol
symbol : variable changehead
location: class argeaer.Arg
double radius = speed/changehead;
^
Arg.java:42: cannot find symbol
symbol : variable changehead
location: class argeaer.Arg
double tothead = diff * changehead;
^
Arg.java:43: cannot find symbol
symbol : variable y
location: class argeaer.Arg
newY = y + (Math.sin(heading + tothead) * radius) -
^
Arg.java:43: cannot find symbol
symbol : variable heading
location: class argeaer.Arg
newY = y + (Math.sin(heading + tothead) * radius) -
^
Arg.java:43: sin(double) in java.lang.Math cannot be applied to (<nulltype>)
newY = y + (Math.sin(heading + tothead) * radius) -
^
Arg.java:44: cannot find symbol
symbol : variable heading
location: class argeaer.Arg
(Math.sin(heading) * radius);
^
Arg.java:43: operator - cannot be applied to <nulltype>,double
newY = y + (Math.sin(heading + tothead) * radius) -
^
Arg.java:45: cannot find symbol
symbol : variable x
location: class argeaer.Arg
newX = x + (Math.cos(heading) * radius) -
^
Arg.java:45: cannot find symbol
symbol : variable heading
location: class argeaer.Arg
newX = x + (Math.cos(heading) * radius) -
^
Arg.java:46: cannot find symbol
symbol : variable heading
location: class argeaer.Arg
(Math.cos(heading + tothead) * radius);
^
Arg.java:46: cos(double) in java.lang.Math cannot be applied to (<nulltype>)
(Math.cos(heading + tothead) * radius);
^
Arg.java:45: operator - cannot be applied to <nulltype>,double
newX = x + (Math.cos(heading) * radius) -
^
Arg.java:51: cannot find symbol
symbol : variable y
location: class argeaer.Arg
newY = y + Math.cos(heading) * speed * diff;
^
Arg.java:51: cannot find symbol
symbol : variable heading
location: class argeaer.Arg
newY = y + Math.cos(heading) * speed * diff;
^
Arg.java:51: cannot find symbol
symbol : variable speed
location: class argeaer.Arg
newY = y + Math.cos(heading) * speed * diff;
^
Arg.java:51: incompatible types
found : <nulltype>
required: double
newY = y + Math.cos(heading) * speed * diff;
^
Arg.java:52: cannot find symbol
symbol : variable x
location: class argeaer.Arg
newX = x + Math.sin(heading) * speed * diff;
^
Arg.java:52: cannot find symbol
symbol : variable heading
location: class argeaer.Arg
newX = x + Math.sin(heading) * speed * diff;
^
Arg.java:52: cannot find symbol
symbol : variable speed
location: class argeaer.Arg
newX = x + Math.sin(heading) * speed * diff;
^
Arg.java:52: incompatible types
found : <nulltype>
required: double
newX = x + Math.sin(heading) * speed * diff;
^
Arg.java:54: package Point2D does not exist
return new Point2D.Double(newX, newY);
^
25 errors
Compile Failed (1)

Thread:User talk:Rigged/little help/reply (8)

2012-06-18T16:49:13Z

Rigged: Reply to little help

hi i've tried radial targeting but I kepp getting a error message. Could you guys just check my code.

package argeaer;
import robocode.*;
//import java.awt.Color;

/**
* Arg - a robot by (your name here)
*/
public class Arg extends Robot
{
/**
* run: Arg's default behavior
*/
public void run() {
// After trying out your robot, try uncommenting the import at the top,
// and the next line:
//setColors(Color.red,Color.blue,Color.green);
while(true) {
// Replace the next 4 lines with any behavior you would like
ahead(100);
turnGunRight(360);
back(100);
turnGunRight(360);
}
}

/**
* onScannedRobot: What to do when you see another robot
*/
/**This function predicts the time of the intersection between the
bullet and the target based on a simple iteration. It then moves
the gun to the correct angle to fire on the target.**/
void doGun() {
long time;
long nextTime;
Point2D.Double p;
p = new Point2D.Double(target.x, target.y);
for (int i = 0; i < 10; i++){
nextTime =
(intMath.round((getRange(getX(),getY(),p.x,p.y)/(20-(3*firePower))));
time = getTime() + nextTime;
p = target.guessPosition(time);
}
/**Turn the gun to the correct angle**/
double gunOffset = getGunHeadingRadians() -
(Math.PI/2 - Math.atan2(p.y - getY(), p.x - getX()));
setTurnGunLeftRadians(normaliseBearing(gunOffset));
}

double normaliseBearing(double ang) {
if (ang > Math.PI)
ang -= 2*PI;
if (ang < -Math.PI)
ang += 2*Math.PI;
return ang;
}

public double getrange(double x1,double y1, double x2,double y2) {
double x = x2-x1;
double y = y2-y1;
double h = Math.sqrt( x*x + y*y );
return h;
}

/**
* onHitByBullet: What to do when you're hit by a bullet
*/
public void onHitByBullet(HitByBulletEvent e) {
turnLeft(90 - e.getBearing());
}

}

Thread:User talk:Rigged/little help/reply (6)

2012-06-13T19:57:41Z

Rigged: Reply to little help

Is is possible to fire a bullet per turn?

Thread:User talk:Rigged/little help/reply (4)

2012-06-13T18:46:17Z

Rigged: Reply to little help

Thanks it's working now :). I want the tank to fire more than 1 bullet a turn. Is it possible?

Thread:User talk:Rigged/little help/reply (2)

2012-06-13T16:35:23Z

Rigged: Reply to little help

Whenever I try to change the colour it comes up with this error message

Compiling...
BOSSSSS.java:15: cannot find symbol
symbol : variable Colour
location: class b.BOSSSSS
setallcolours(Colour.RED);
^
1 error
Compile Failed (1)

Im a complete newby so I don't know what to do. Anyone Help?

Thread:Talk:Main Page/New to Robocode/reply (3)

2012-06-09T09:33:17Z

Rigged: Reply to New to Robocode

Thanks for the advise :). I've started by building a simple robot and i was wondering how do you change the colour of your robot.

Thread:Talk:Main Page/New to Robocode

2012-06-08T11:52:05Z

Rigged: New thread: New to Robocode

Hia I've only just started using robocode and I have never coded before doe anyone know any good tutorials out there ? Or could you give me any tips on how to get started. Any advise would be appreciated.