Mjolnir

Mjolnir,

Thor's hammer is said to have the following powers: "it would never break, it would never be lost because it would return to Thor's hand after being thrown and it could be made smaller so Thor could keep it in his shirt..." .

How does it move?

Close combat.

How does it fire?

It uses a simple GuessFactor gun.

How does it dodge bullets?

It doesn't.

How does the melee strategy differ from one-on-one strategy?

Not capable of a melee fight.

What does it save between rounds and matches?

All Guessfactor data on the opponent.

Where did you get the name?

Mjolnir, or Thor's hammer, seemed like an appropriate description of its behaviour..

Where can i get it?

https://www.robocoderepository.com/BotDetail.jsp?id=2220

Can I use your code?

Of course, the source is in the package. Not much new though...

What's next for your robot?

What is it based on?

It's based on mini.Wodan v0.282.

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Comments :

Given the outcome of my testset, the current ranking (202 after 105 battles) in the rumble is quite dissapointing... :(

Rank	Robot	Score	Survival	Last surv. b.	Bullet dmg.	Bullet dmg. b.	2*Ram dmg.	Ram dmg. b.	#1st	#2nd	#3rd
1	Mjolnir 0.1	206074	15500	3100	126325	6296	51519	3310	359	1250	0
2	Shadow 2.49.1	184116	67350	13470	85534	14875	1712	1158	1352	251	0
3	SilverSurfer 2.07	177046	65900	13180	82194	14715	636	410	1322	281	0
4	RaikoMicro 1.44	161527	53150	10630	83832	12175	1204	527	1082	529	0
5	Tityus 0.9.6	156069	47950	9590	84891	12855	654	114	985	631	0
6	Wodan 0.283	154625	38250	7650	91406	11015	5341	941	792	818	0
7	Wodan 0.282	154502	38650	7730	90296	11003	5859	943	801	811	0
8	Wodan 0.284	153813	36850	7370	91611	10482	6514	965	763	847	0
9	R2d2 0.863	151745	43500	8700	83609	10340	4450	1133	889	721	0
10	Artist 0.1	151286	49000	9800	79159	11796	974	539	995	618	0
11	Wodan 0.287	143191	36350	7270	85434	10185	3193	742	748	859	0
12	Wodan 0.286b	137914	33300	6660	84001	9640	3805	492	694	913	0
13	Titan 1.2	132725	31450	6290	82065	8739	2773	1392	650	965	0
14	Locke 0.1.9.4	131781	46100	9220	66271	8766	1173	238	947	674	0
15	Wodan 0.286	124847	29550	5910	79143	8164	1967	103	616	997	0
16	MicroScoob? 1.3	121007	23900	4780	82109	8236	1534	437	488	1119	0
17	Silverfish 0.0	81090	18650	3730	51658	4763	1690	586	380	1224	0

Results from the rumble: the top bots suffer most from rammers.. but there are better rammers than Mjolnir out there!

enemy	% score	battles	last battle	expected %	ProblemBot Index
jam.RaikoMX 0.29 - bvh.mini.Mjolnir_0.1	75.5	3	4-5-2004:12:20	86.5	-11.0
abc.Shadow 2.49.1 - bvh.mini.Mjolnir_0.1	70.1	1	4-5-2004:11:8	85.2	-15.1
rz.Aleph 0.33 - bvh.mini.Mjolnir_0.1	69.4	1	4-5-2004:12:31	83.8	-14.3
pe.SandboxDT 3.02 - bvh.mini.Mjolnir_0.1	74.2	2	4-5-2004:12:28	83.8	-9.5
axeBots.SilverSurfer 2.17.3 - bvh.mini.Mjolnir_0.1	73.7	3	4-5-2004:12:3	83.2	-9.5
pez.mini.Pugilist 1.7.6 - bvh.mini.Mjolnir_0.1	67.2	3	4-5-2004:9:31	81.6	-14.3

ok, so far this ends this episode of a failed version of Wodan called Mjolnir.

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That's the story of rammers I guess. A decent rammer is hard (or impossible) to get super high scores against. On the other hand it's very hard (or impossible) to write a rammer that can get more than 50% against enough bots to get any high ranking. I think this is because when you approach an enemy you narrow your escape envelope and thus get easier to hit. -- PEZ

• true. And you don't even need sophisticated targetting techniques to hit your opponent, direct targetting is sufficient. Maybe tonight i will give it one more try: stay away from the easy bots and use the GF-gun and ram the better bots. See if this 2-way strategy helps in its ranking. --Loki
• Hmmm. But don't you think you can get more than 25% against the better bots using a stay-away strategy? Don't let yourself be fooled by those problem bot indexes. -- PEZ

Well, in any way, it kicks the shit out of Locke. I'm not very pleased with that Loki! ;-) --Vic

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What criteria do you use to determine that it is ramming-time. Is it purely 'I did not survive the last few rounds, so now I'm pissed', or do you keep some some scoring statistics. -- GrubbmGait

• there is no logic (meaning both 'sense' and 'code') behind the ramming behaviour. to be honest, Mjolnir is just the result of accidentally messing up some movement parameters in MiniWodan, resulting in always homing in on the opponent. --Loki

I was testing against this bot and noticed (without having read that it was a ram bot) that it goes into ram mode seemingly at random, and usually stays in ram mode the rest of the fight. I watched at least one 35 round battle where it didn't ram at all though. After dealing with several problem ram bots I am considering taking a deliberate ramming approach when none of my guns are working. There are a few bots that no matter what I try I can't get them out of the red (for long). -- Martin