[robocup-nao] Final Nao rules for 2008

[Stefan Czarnetzki]

Hi,

I would like to encourage clarification on two issues:

1. The rule concerning fallen robots.
As Dieter said, the rule is not in the file yet and there are still some 
questions. To those I would like to add, that a robot should not be able 
to get an advantage out of this penalty, i.e. it should never be placed 
nearer to the ball than it was when falling down. This might happen if 
robots are put in without any time penalty at the halfway line. If the 
ball is in front of the opponent goal, a robot falling down in the back 
corner of its own half could gain nearly 2 meters without losing much time.
Additionally it should be considered that stand-up motions are indeed 
possible. I know of at least three persons having developed such motions 
independently. Having these motions would make the game much nicer to 
look at and should be an advantage.

Either a moderate time penalty (10-15s) or alternative points for 
replacement might be a solution. Since we already have the throw-in 
line, we could also use it for placing fallen robots.


2. The player "pushing" rule.
Preventing the robots from entering a 50cm zone around each other might 
result in a nicer game without robots lying on the ground all the time 
and hopefully also in our Naos surviving a bit longer.
On the other hand this rule gives a robot all the time it wants for 
positioning around the ball. Others would not be allowed to come closer, 
not even the goalie in its own penaly area. Touching the ball once in a 
while prevents global game stuck and achieving a better shooting 
orientation might be considered a change substantially enough to prevent 
local game stuck, too.
The player pushing rule should be clarified with reference to the local 
game stuck rule to prevent such situations.


Best regards,
Stefan



Çetin Meriçli wrote:
> Hi,
>
> The finalized Nao rules are uploaded to the league website 
> (http://www.tzi.de/4legged/pub/Website/Downloads/NaoRules2008.pdf). The 
> changes can be listed as:
>
> - Number of players is reduced to 3 vs. 3.
> - Player pushing rule is changed in order to minimize physical contact 
> of the robots.
> - Human assistance (by the assistant referees) is allowed on fallen 
> robots. They will get a zero seconds penalty and moved to the halfway line.
> - Local game stuck rule is modified.
> - Ball holding rule is modified.
> - It is allowed to play without colored parts on the shoulders and on 
> the feet.
> - It is allowed to fix wrist joints with glue/transparent duct tape.
>
> Sorry for the delay, and hope to see you all in Suzhou!
>
> 2008 Technical and Organizing Committees
>
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