GresSuffurd

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Version History - GresVretter (gun) - WeefSuffurd (movement) - Archived Talk 20090426

GresSuffurd
Author(s)	GrubbmGait
Extends	AdvancedRobot
Targeting	GuessFactor Targeting
Movement	Wave Surfing
Released	2006-09-26
Best Rating	APS: 83.98 (9th)
Current Version	0.3.2
Code License	RWPCL
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Background Information

What's special about it?

It's the first bot I made featuring Wave Surfing and GuessFactor Targeting and was my ticket to The2000Club. It has nothing special to defend itself against the top-bots, while the movement is tuned against simple targeters. It uses Precise Intersection (gun only), and binsmoothing is not used in gun nor movement.

It is the best Dutch bot.

Where did you get the name?

It is my translation of the combination Guess and Surfer. All my bots start with 'Gr' and 'sufferd' is someone like Disney's Goofy.

Strategy

How does it move?

It uses Wave Surfing, currently segmented on absolute velocity and on wallproximity. No rolling depth (decaying old data) is present.

How does it fire?

It uses GuessFactor Targeting, segmented on 'time since velocity change', absolute lateral velocity, wallproximity and 'distance last 14 ticks'. The latest versions use Precise Intersection and simulated precise MEA. It has a second gun with exact the same configuration, only the stats are decaying over time.

Does it have any WhiteWhales?

mirror bots, especially PolishedRuby, the bots of darkcanuck, Tron and Tigger are always a hard nut to crack.

What's next for your robot?

The gun is as good as done. The movement will need much attention, it has not changed in the last 2 years and it is relatively weak. A Precise Intersection implementation is under construction, but has a bit disappointing performance at the moment. Maybe in the future I will investigate a rolling depth in the surfingstats. Even a flattener is a possibility. One thing I definately want to do, is to make use of the safe spot created by colliding bullets. Not because it is a safe spot, for that wave the complete range is safe, but to throw off the stats of the opponent.

Credits

GresSuffurd is for the largest part my own achievement. However, it would not have come this far without the ideas and sometimes pieces of code from others.

• It is based upon Kawigi's GuessFactorTargeting Tutorial and Voidious' Wave_Surfing_Tutorial, including all their credits like Paul Evans, ABC, PEZ, rozu and Jamougha.
• The Precise Intersection seems a collective effort of Krabb, Rednaxela and Skilgannon
• The proper onDeath handling is thought up by David Alves, although it is obsolete since Robocode 1.5.
• The ini-file handling comes from Loki.
• For the idea of pluggable movement and gun I must thank PEZ.
• The movement debuggraphics are inspired by Voidious' Diamond
• The Energy Drop detection and WallAvoidance is initially taken from my older bot GrubbmGrb.
• Last but not least I must thank Krabb for the drive to change instead of tweak, by racing for The2000Club.