User:Robar/Code snippets - Revision history

Chase-san: use

2010-07-01T06:20:43Z

use <syntaxhighlight>

Robar at 17:31, 6 April 2009

2009-04-06T17:31:24Z

Robar: my interesting and silly codes - Angular Velocity gun and Maximum Escape Angle gun added

2009-04-06T17:30:21Z

my interesting and silly codes - Angular Velocity gun and Maximum Escape Angle gun added

New page

[[Category:Code snippets]]
= My code snippets =
:During my researches in Robocode I created many educating and interesting codes, which I'd like to share with you.
:Many places I use variables called 'hot' and 'absB'. They are exactly what their names mean: Head-on angle and Absolute Bearing, both in radians.
:The codes are not squeezed, they are supposed to be readable and obvious.

== Quick Linear Targeting with Angular Velocity ==
:This works quite well, but it's not smaller and a bit less accurate than the popular latvel-type. Otherwise, this shows very spectaculary what exactly [[Angular Velocity]] is.
<pre>
public double do_Angular_Velocity_Gun(ScannedRobotEvent e){
double av = (e.getVelocity()*Math.sin(e.getHeadingRadians()-absB))/e.getDistance();
return hot+av*(e.getDistance()/bulletVel);
}
</pre>

== Quick Linear Targeting with Maximum Escape Angle ==
:This one is even less accurate but an interesting use of [[Maximum Escape Angle]]. ;)
<pre>
public double do_MaximumEscapeAngle_gun(ScannedRobotEvent e){
double lateralDir = Math.signum(e.getVelocity()*Math.sin(e.getHeadingRadians()-absB));
double mea = Math.asin(8.0/bulletVel);
return hot + mea*lateralDir;
}
</pre>

@@ Line 7: / Line 7: @@
 == Quick Linear Targeting with Angular Velocity ==
 :This works quite well, but it's not smaller and a bit less accurate than the popular latvel-type. Otherwise, this shows very spectaculary what exactly [[Angular Velocity]] is.
-<pre>
+<syntaxhighlight>
 public double do_Angular_Velocity_Gun(ScannedRobotEvent e){
              double av = (e.getVelocity()*Math.sin(e.getHeadingRadians()-absB))/e.getDistance();
              return hot+av*(e.getDistance()/bulletVel);
+      }
-</pre>
+</syntaxhighlight>
 == Quick Linear Targeting with Maximum Escape Angle ==
 :This one is even less accurate but an interesting use of [[Maximum Escape Angle]]. ;)
-<pre>
+<syntaxhighlight>
   public double do_MaximumEscapeAngle_gun(ScannedRobotEvent e){
          	double lateralDir = Math.signum(e.getVelocity()*Math.sin(e.getHeadingRadians()-absB));
@@ Line 22: / Line 22: @@
          	return hot + mea*lateralDir;
+         }
-</pre>
+</syntaxhighlight>

@@ Line 1: / Line 1: @@
-[[Category:Code snippets]]
+[[Category:Code Snippets|Robar's educational code snippets]]
 = My code snippets =
 :During my researches in Robocode I created many educating and interesting codes, which I'd like to share with you.