Handy Board 1 | Handy Board 2 |
We will now reveal
the secrets to how the Pig Race is operated!
There are two handy
boards that controls the entire game:
Handy Board 1
- Plays the theme
song when game begins.
with the note generator function of the Handy Board. It is programmed
the concurrency command, forever, so that the song will
continuously play throughout the game.
- Moves the corresponding
pig along the track when a player makes a goal.
- A LED shines
on a light sensor inside the goal, and when a ball crosses the
light, the light sensor triggers the motor on the corresponding
pig's track to move forward a certain distance.
- When one of the
pigs reaches the finish line, everything halts. Then, a congratulatory
song plays, while the crowd cheers and a decorative banner unravels.
LED shines on a light sensor across the finish line, and when
a pig crosses the light, the light sensor triggers the whole application
to halt. Then, it turns on the motor for the cheering crowd. Next,
the motor that unravels the decorative banner is turned on. When
the banner is unraveled, the congratulatory song stops.
- After the congratulatory
celebration, everything resets automatically: the pigs one by one move
back to the starting line, and the banner rolls back up.
the banner unravels, the motors on the tracks of the pigs are programmed
move backwards until the pigs reach the starting line, where reflecting
sensors detect the color of the pigs, and triggers the motors to
the pigs are back at the starting position, the motor on the decorative
banner turns on the reverse direction, rolling the banner back up
to its original state.
* Click to view the code for Handy Board 1
goal keeper that is in front of each goal moves side to side, making
it more difficult for the player to roll the ball into the goal.
is a reflecting sensor on either side of the goal box, which triggers
the motor on the geared chain that is connected to the goal keeper
to turn the opposite direction.
goal keepers stop moving once a pig reaches the finish line.
to how handy board 1 stops the pigs, when a pig reaches the finish
line, it blocks a light sensor from a LED light that is on the
other side, which triggers the motors on the goal keepers to stop.
the congratulatory celebration, a treasure chest opens, revealing
the prizes for the players. The chest waits for the players to reach
in and grab the prizes, then it closes. (You better
be quick though! or else the chest will close on you before you claim
the goal keepers halt, the program waits for a set number of seconds
(waiting for the handy board 1 to finish congratulating and resetting)
before it triggers the motor on the treasure chest door to activate.
Then, the program waits again for the players to grab the prize,
when it finally closes by reversing the motor on the treasure
Click to view the code for Handy Board 2