http://robowiki.net/w/index.php?action=history&feed=atom&title=ZapperZapper - Revision history2026-05-01T06:48:48ZRevision history for this page on the wikiMediaWiki 1.34.1http://robowiki.net/w/index.php?title=Zapper&diff=57309&oldid=prevBeaming: zapper bot page2023-01-23T00:39:39Z<p>zapper bot page</p>
<p><b>New page</b></p><div>{{Infobox Robot<br />
| bgcolour = <br />
| name = zapper<br />
| altimage = <br />
| image = <br />
| imagesize = <br />
| caption = <br />
| author = [[User:Beaming|Beaming]]<br />
| extends = [[AdvancedRobot]]<br />
| targeting = kdTree, Random, kdTree assisted random<br />
| movement = Wave surfing with exact path predictor<br />
| released = 2019<br />
| best_rating = <br />
<!-- for rating copy paste with current version --><br />
<!--<br />
| rating = <br />
1on1 {{subst:rumblestats:roborumble|eem.zapper v4.35|NavboxStats}}<br />
melee {{subst:rumblestats:meleerumble|eem.zapper v4.35|NavboxStats}}<br />
--><br />
| rating = <br />
1on1 {{NavboxStats|link=http://literumble.appspot.com/BotDetails?game=roborumble&name=eem.zapper%20v4.35 |rumble=RoboRumble|scorelabel=APS|score=80.13|rank=64th|win=1130|loss=61|plrank=56th|glicko2=N/A|pwin=94.88|vote=0.42|anpp=83.85|score2label=Survival|score2=86.97}}<br />
| current_version = v4.35<br />
| codesize = [[MegaBot]]<br />
| license = open source and comes with no string attached<br />
| download_link = http://robocode-archive.strangeautomata.com/robots/eem.zapper_v4.35.jar<br />
| source_link = <br />
| isOneOnOne = true<br />
| isMelee = false<br />
| isOpenSource = true<br />
}}<br />
<br />
== Background Information ==<br />
<br />
=== What's special about it? ===<br />
It is my attempt to write a better monolithic (single file) bot.<br />
<br />
=== How competitive is it? ===<br />
In 1 on 1 it is still quite weak and hovers just above top 100.<br />
<br />
=== What is under the hood? ===<br />
It is a wave surfer with kd-tree danger zones and kd-tree powered guns which decide between each other <br />
who has a best hit rate. Among common tree coordinates, it uses virtual/real wave, and was hit actually happening. Also, it takes in account time if gun needs it. The whole calculation is done<br />
on one nearest neighbor cluster. But weighted differently. Kd-tree coordinate weights for distance calculation are renormilized at the beginning of each battle (this seems to be a novel approach).<br />
<br />
=== How does it move? ===<br />
It creates a danger profile for an enemy wave based on kd-tree and surfs it. Depending on enemy hit rate it weights real and virtual hits/waves differently. For low hit rates enemies, it avoids real hit locations, but fore a better aiming opponents it avoids virtual hits too.<br />
<br />
=== How does it fire ===<br />
It used kd-tree with different weights for several guns, and select the best hitting one. There are also HoT and random guns (simple and kd-tree range limiting) in the mix.<br />
<br />
<br />
=== Great, I want to try it. Where can I download it? ===<br />
It is in the official rumble so just use the link from [[RoboRumble/Participants]]<br />
<br />
== Thanks ==<br />
I still suffer from "not coded here syndrome" so my code is quite original. But this bot would not work<br />
without [[User:Skilgannon|Skilgannon]] and [[User:Rednaxela|Rednaxela]] kd-trees.<br />
<br />
Nevertheless, I owe to many people who made this wiki and its content available. Special thanks to [[User:Voidious|Voidious]] and his wonderful [[RoboRunner]] tool which I used.<br />
<br />
I extend my appreciation to [[User:Xor|Xor]] who is active in this Wiki, who keep me motivated to continue to improve. Additional, thanks for bug fixes in the robocode engine and [[RoboRunner]].</div>Beaming