[robocup-small] Rules clarification: Goalie contact

[Juan Pablo Mendoza]

Hi Chris,

I have a followup question to this. Does *any* contact with the goalie in
the defense area result in a free kick for the goalie's team? In
particular, consider these situations:
- The ball is in yellow's defense area. A blue robot and the yellow goalie
are in it too. Yellow goalie then drives quickly into the ball (blue robot
may be stopped), and in the process makes substantial contact with the blue
robot.
- The ball is in yellow's defense area. A blue robot and the yellow goalie
are in it too. Yellow goalie then intentionally drives into the blue robot,
not minding the location of the ball.
- The ball is NOT in yellow's defense area. A blue robot and the yellow
goalie are in yellow's defense area. Yellow goalie then intentionally (or
unintentionally) drives into the blue robot.

Would all of these result in an indirect free kick for yellow?

Thank you,
JP


On Sun, Apr 7, 2013 at 2:56 AM, Christopher Head <chead at chead.ca> wrote:

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>
> Hi Joydeep,
> There are two reasons why this is not handled quite the way you read it.
>
> First, section 12.1 uses the phase “substantial contact”; Law 12
> Decisions of the Small Size League Technical Committee points out that
> “substantial contact” is not just touching, it’s more serious contact
> where a moving robot hits a slow or stopped robot.
>
> Second, the above observation doesn’t even matter: section 12.3 states
> that “an indirect free kick is awarded to the opposing team if a robot
> contacts the goalkeeper where the point of contact is in the defense
> area”. This is the usual interference with the goalie rule, and it has
> not been changed at all this year; therefore, in the situation you
> describe, assuming the point of contact is in the defense area,
> *yellow* would get an indirect free kick. This naturally takes
> precedence over any other rules regarding substantial contact in
> general, and this applies to any contact at all, not just substantial
> contact.
>
> Chris
>
> On Sat, 6 Apr 2013 11:27:43 -0400
> Joydeep Biswas <joydeepb at ri.cmu.edu> wrote:
>
> > Hi,
> >
> > Section 12.1 says a direct free kick is awarded to the opposing team
> > if a robot makes substantial contact with an opponent. In addition,
> > 12.2 says that a penalty kick will be awarded to the opposing team if
> > such contact occurs in the own defense area.
> > This means that if the yellow goalie, in the yellow defense area,
> > touches a blue robot in the yellow defense area while trying to
> > defend against a goal, the blue team will be awarded a penalty kick.
> >
> > Did I read this correctly? If not, could the TC / OC please clarify?
> >
> > -Joydeep
>
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