Rack ’n' Roll is a game played on a field as illustrated in the figure above. Two ALLIANCES, one
red and one blue, composed of three teams each, compete in each match. The object of the game
is to attain a higher score than your opponent ALLIANCE by placing GAME PIECES on the
central goal structure (the RACK), and/or by having ROBOTS in their HOME ZONE and not in
contact with the playing field at the end of the match.
A match is 2 minutes and 15 seconds long. 15 seconds AUTONOMOUS PERIOD starts each match
in which the ROBOTS are controlled by pre-programmed instructions. The AUTONOMOUS
PERIOD is followed by the TELEOPERATED PERIOD, the remaining 2 minutes, during which the DRIVERS assume
control of the robot. There may be a short pause between AUTONOMOUS PERIOD and the
start of the TELEOPERATED PERIOD as the player's stations are activated. The final portion of
the TELEOPERATED PERIOD is known as the END GAME, last 15 seconds. The END GAME is played as a
continuation of the TELEOPERATED PERIOD, except ROBOTS are not permitted in their
opponent's HOME ZONE.
Game terms:
- Home Zone - is a 26 ft. by 8 ft. section directly in front of the Alliance zone
- Ringers - Are 32 inch diameter pool tubes that are to be placed on the spider legs of the rack. These are either blue or red depending on the alliance they belong to, and only that color alliance can move them. These cannot be moved after being
placed on the spider. There are 36 of these on the field. Seven of them start leaned against the opposite wall then the alliance
started on.
- Spoilers - Are black 32 inch diameter pool tubes and can be placed on the spider legs. But instead these tubes
cancel out ringers. This can be moved after being placed on the spider. There are a total of four of these on the field. There are two placed behind the Alliance zone and can be placed on the field be human players.
- Keepers - Are ringers that can only be placed in the autonomous period. However, they are unable to be changed by either
another ringer of even by a spoiler. There are a total of six of these, 1 per robot. However, are unable to be used after Autonomous mode.
Between autonomous and teleoperated periods the reff's can remove these if they feel it is necessary
- The Rack - Is an octagon in the center of the field. It contains three spiders at 48in. 60in. and 96in. high. On 4 of the 8 sides above the spiders are green light that can be traced by cameras on the robot.
- Spiders and Spider Legs - There are three spiders suspended in the rack at 48in. 60in. and 96in. high. . Each spider has eight legs, one per side. These legs are where ringers, spoilers, and keepers are to be placed.
Robot Classes
This year the are also different classes of robots, referring to their size and weight.
Class 1:
- 28 x 38 inches
- 48 inches in height
- 120 pounds
Class 2:
- 28 x 38 inches
- 60 inches in height
- 110 pounds
Class 3:
- 28 x 38 inches
- 72 inches in height
- 100 pounds
These sizes refer to the size the robot has to be in starting position. During the game, the robot can expand. It has no limit on
height but outside of the Home zone it can only expand to 72 x 72 inches. But while being in the home zone can expand with out
limit except staying in the home zone.
Game play
- Each ROBOT starts the match in POSSESSION of a KEEPER. The robot dose not have to be holding the keeper, it just has to be
touching it.
- Each ALLIANCE has two (2) SPOILERS. Prior to
the start of the match, the SPOILERS are placed in the center stack of GAME PIECES at
the back edge of the ALLIANCE ZONE.
- Each ALLIANCE has a total of 18 RINGERS. Prior to the
start of the match, 9 RINGERS are lined up along the width of the Alliance Station Wall of
the opposing ALLIANCE. These RINGERS are resting on the floor, and lean against the Alliance zone wall. The rest of the ringers are
behind the Alliance zone, “Human Players” put these into play. They must either throw them over the top or put them
through a hole in the wall.
During the game teams have to try to place ringers, spoilers and keepers in auton, on the rack. They object is to create rows of
your teams color while stopping the other team from getting rows. How this is scored is shown bellow.
SCORING
Total point values of SCORED ROWS are as follows:
- SINGLETON (a stand a lone ringer or spoiler) - 2 points
- ROW of 2 SCORED SPIDER LEGS - 4 points
- ROW of 3 SCORED SPIDER LEGS - 8 points
- ROW of 4 SCORED SPIDER LEGS - 16 points
- ROW of 5 SCORED SPIDER LEGS - 32 points
- ROW of 6 SCORED SPIDER LEGS - 64 points
- ROW of 7 SCORED SPIDER LEGS - 128 points
- ROW of 8 SCORED SPIDER LEGS - 256 points
ROBOTS can also score points by; at the end of the match if they are
entirely in their HOME ZONE, not in contact with any element of the field (carpet, alliance
station, goal etc.) in addition, the lowest point of the ROBOT is higher than 4 inches and/or 12
inches above the carpeted field surface. The number of bonus points an ALLIANCE
receives is based on the total number of ROBOTS satisfying these conditions. Each
ALLIANCE ROBOT entirely in their HOME ZONE at the end of the match is eligible to
receive the following bonus points:
- Each ROBOT between 0 and 3.9 inches above floor level - 0 bonus points
- Each ROBOT between 4.0 and 11.9 inches above floor level - 15 bonus points
- Each ROBOT 12.0 inches or more above floor level - 30 bonus points