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-   -   Abilities of the top teams at a regional? (http://www.chiefdelphi.com/forums/showthread.php?t=125270)

JohnFogarty 04-02-2014 15:15

Re: Abilities of the top teams at a regional?
 
Quote:

Originally Posted by Abhishek R (Post 1337580)
I keep seeing similarities to soccer in this year's game.

Except you can't really play defense on the ball itself outside of the goalie zone.

Abhishek R 04-02-2014 15:16

Re: Abilities of the top teams at a regional?
 
Quote:

Originally Posted by JohnFogarty (Post 1337583)
Except you can't really play defense on the ball itself outside of the goalie zone.

Why not?

Until alliances become proficient enough to keep the ball off the ground, I don't see why any opposing bot can't just ram the ball in some random direction.

JohnFogarty 04-02-2014 15:20

Re: Abilities of the top teams at a regional?
 
Quote:

An ALLIANCE may not POSSESS their opponent’s BALLS. The following criteria define POSSESSION :

“carrying” (moving while supporting BALLS in or on the ROBOT),
“herding” (repeated pushing or bumping),
“launching” (impelling BALLS to a desired location or direction via a MECHANISM in motion relative to the ROBOT), or
“trapping” (overt isolation or holding one or more BALLS against a FIELD element or ROBOT in an attempt to shield them).

Violation: TECHNICAL FOUL per instance. If extended, another TECHNICAL FOUL. If strategic, RED CARD for the ALLIANCE.


Examples of BALL interaction that are not POSSESSION are

A. “bulldozing” (inadvertently coming in contact with BALLS that happen to be in the path of the ROBOT as it moves about the FIELD) and

B. “deflecting” (a single hit to or being hit by a BALL that bounces or rolls off the ROBOT).

A BALL that becomes unintentionally lodged on a ROBOT will be considered POSSESSED by the ROBOT. It is important to design your ROBOT so that it is impossible to inadvertently or intentionally POSSESS an opponent’s BALL.
That wouldn't be inadvertent bulldozing would it.

bduddy 04-02-2014 15:21

Re: Abilities of the top teams at a regional?
 
Quote:

Originally Posted by Racer26 (Post 1337570)
In FRC, especially in recent times, the best defense is a really good offence.

But this game is not like "recent times" - not at all. In most FRC games, even if you completely shut down one robot on an alliance, the other two can still collect tons of game pieces and outscore you. In 2014, there is only one game piece. Knock it away, or stop the robot holding it, and the other alliance is not scoring, at all. If you can play effective defense with 1 robot, or even with 2 robots, you have the advantage.

Abhishek R 04-02-2014 15:26

Re: Abilities of the top teams at a regional?
 
Quote:

Originally Posted by JohnFogarty (Post 1337587)
That wouldn't be inadvertent bulldozing would it.

It would be intentional bulldozing, but I don't think that counts as posession of the opposing alliance ball. Just ramming it as you drive along the field is not 'carrying' , not 'herding' becauses it's not repeated, not 'launching' because it's not via mechanism in relation to robot, and not 'trapping' because once you hit it you're gone, you're not shielding it.

wireties 04-02-2014 15:40

Re: Abilities of the top teams at a regional?
 
I think is better to play defense against the bot than the ball and not take chances on a penalty. If you think about it preventing a robot from passing or receiving in the intended direction accomplishes much the same purpose as deflecting the ball.

I think this year will emphasis the role of a "guard" more so than previous years. The 3rd robot can play a role "guarding" a pass between robots 1 & 2 and so on. And then robots 1 & 2 guarding robot 3 while is shoots/scores. It is possible to productively play total offense.

It will be interesting to watch how different strategies evolve in the early weeks.

bduddy 04-02-2014 15:53

Re: Abilities of the top teams at a regional?
 
Quote:

Originally Posted by JohnFogarty (Post 1337587)
That wouldn't be inadvertent bulldozing would it.

Quote:

“launching” (impelling BALLS to a desired location or direction via a MECHANISM in motion relative to the ROBOT),
Note the italicized part, which was added in a team update. You can launch opposing balls in any desire direction as long as you don't use a moving part to do it.

JohnFogarty 04-02-2014 15:58

Re: Abilities of the top teams at a regional?
 
The entire robot could be considered a moving "part" to some interpreters.

wireties 04-02-2014 16:03

Re: Abilities of the top teams at a regional?
 
Or make the mistake of hitting the ball a couple times in quick succession and having a referee interpret (incorrectly or not) the actions as herding. That is a big ball and there are possibly several robots in close proximity.

I'm not saying this is so - just that playing the robot, as a rule, might keep drivers from inadvertent penalties.

waialua359 04-02-2014 16:28

Re: Abilities of the top teams at a regional?
 
Quote:

Originally Posted by pandamonium (Post 1337551)
Remember stingers? I wonder if teams will drop a piece of metal with a hard to move surface when shooting.

If a team has to do this in order to ensure a clean shot.............well honestly, that's taking too long to make a shot.

Pault 04-02-2014 16:51

Re: Abilities of the top teams at a regional?
 
Quote:

Originally Posted by JohnFogarty (Post 1337611)
The entire robot could be considered a moving "part" to some interpreters.

Unless these interpreters managed to break the laws of physics, I think they might have a tough time arguing that the robot is in motion relative to the robot.

bduddy 04-02-2014 16:52

Re: Abilities of the top teams at a regional?
 
^ That would be taking relativity to a whole new level...

Abhishek R 04-02-2014 17:02

Re: Abilities of the top teams at a regional?
 
This probably falls under the category of deflecting, since it's a single hit to the ball.

gpetilli 05-02-2014 09:36

Re: Abilities of the top teams at a regional?
 
Quote:

Originally Posted by JohnFogarty (Post 1337611)
The entire robot could be considered a moving "part" to some interpreters.

While the robot is indeed a moving part, it is not moving with respect to itself. I personally think a single clean hit would be legal "deflecting" but I would be concerned about G11 - "intentionally ejecting" the ball from game-play.


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