[Dprglist] -- better readability --QQRe: roborama rules questions

[paradug]

-- Better readability ---

Markus,
     Answers to your questions.

      Q1:  Big Table Top 2 and Can-Can Soccer rules for the setup of the 
fields have markings made with "blue painter's tape". I'm wondering what 
properties that has for IR. I have simple drop off sensors (sharp gp2s40) 
and am wondering if my robot thinks it reached the end of the world when it 
comes across a strip of tape?

     A1:  The blue tape was chosen because of its availability and its low 
impact on IR sensors. In Big Table Top 2, the seam between the two parts of 
the table is covered with blue tape to prevent tripping sensors. The 
uncovered seam will trip some sensors. The tape used is "3M ScotchBlue 
Original Multi-Use Painter's Tape" available at Home Depot and Similar 
locations. I would suggest obtaining some and determining how your sensors 
respond to going over it. The table top is white, a piece of poster board 
could be used as a simulated table top.

The starting box is marked with black electrical tape (3/4") and it will 
definitely trip an IR sensor. You must strategize how to leave and reenter 
the starting zone.

The blue tape used in the Can Can Soccer contest is only to help aid placing 
robots and similar activities. It isn't meant to be used as a navigational 
aid.

Q2:  Can it generally be assumed that cans are "free standing"? In other 
words, if an obstacle is wider than a single can, or smaller than a single 
can - it can't be a can?

A2:  The rules for Can Can Soccer say that the cans are randomly placed. The 
judge places the cans just before the competition. No practice runs are made 
on the final can positions. The judge will mark the course with small pieces 
of blue painter's tape, so that cans will be in the same location for all 
competitors.

Now we get to past experiences versus what is stated in the rules.
The judge generally will:
   1.  Place the cans so that they are divided equally on the two halves of 
the field.
   2.  The cans are at least 2 inches apart.
   3.  The cans are set no closer than 6 inches from a wall.

However, the judge is not required to do these things.

You would be safe in saying that an obstacle smaller than a single can isn't 
a can. I also think you would be safe to say an obstacle larger than 2 cans
and a couple of inches isn't a can. If an obstacle moves, it is definitely 
not a can.

Q3:  In Can-Can Soccer there are supposed to be 6 cans on the field, and the 
game ends when one robot has placed 7 cans into the opponent's goal ..... I 
highly doubt my robot will have to look for the 7th can, I'm just curious. 
Do you bring scored cans back onto the field? If yes, are they placed in the 
same spots as the original 6?

A3:   If you look at the rules closely, you will see at the top that a round 
is divided into two 5 minute halves. The cans are returned to the original 
locations at the start of the 2nd half, and robots exchange the ends of the 
field. You can reset your robot at this time. The idea is to equalize any 
unintentional advantage that one end of the field might have. Unintentional 
advantages could be can placement or lighting variations. A round actually 
consists of an opportunity to collect 12 cans. Collecting 7 cans wins the 
round. Can placement is the same for all rounds of a tournament level. The 
can positions can be changed between tournament levels by the judge. 
However, the judge isn't required to change them.

Q4:  I pre-registered for both events but didn't get any confirmation 
emails, just making sure             I didn't mess that up ;)

A4:  You are registered. I will check with the person running the 
competition about confirmation emails.



-----Original Message----- 
From: markus
Sent: Tuesday, March 28, 2017 10:30 AM
To: DPRG
Subject: [Dprglist] roborama rules questions

I have some questions about the rules/setup of Big Table Top 2 and Can-Can
Soccer.

Both fields include markings with "blue painter's tape" - and I'm wondering
what properties that has for IR. I have simple dropoff sensors (sharp
gp2s40) and am wondering if my robot thinks it reached the end of the world
when it comes across a strip of tape?

Can it generally be assumed that cans are "free standing"? In other words,
if an obstacle is wider than a single can, or smaller than a single can - it
can't be a can?

And lastly - in Can-Can Soccer there are supposed to be 6 cans on the field,
and the game ends when one robot has placed 7 cans into the opponent's goal
..... I highly doubt my robot will have to look for the 7th can, I'm just
curious. Do you bring scored cans back onto the field? If yes, are they
placed in the same spots as the original 6?

Thanks,
Markus

PS: I pre-registered for both events but didn't get any confirmation emails,
just making sure I didn't mess that up ;)
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