Description
Puppy Simulator – State Pattern
Using the State Pattern, create a puppy simulator program that has two basic functions:
feed or play with the puppy. The puppy will react differently to these functions based on
which state it is in. The puppy has three possible states: asleep, eating, or playing.
The puppy simulator begins in the asleep state.
When the puppy is asleep, the only way to wake it up is to feed it. It will come running
when it hears its food bowl being filled.
When the puppy is eating, it can continue to eat until it’s so full that it will fall back
asleep (~2 or 3 times), or if you can distract it with a ball, then it will play with you.
When the puppy is playing, you can continue playing with it until it gets so tired that it
falls asleep again (~3 times).
Using the following class diagram, create the Puppy Simulator:
The Puppy class uses instance variables to keep track of the number of times it has been
fed and played with, the states can use the Puppy’s functions to increment, access, and
reset those values when needed.
Example Output:
Congratulations on your new
puppy!
What would you like to do?
1. Feed
2. Play
3. Quit
2
The puppy is asleep. It doesn’t
want to play right now.
What would you like to do?
1. Feed
2. Play
3. Quit
1
The puppy wakes up and comes
running to eat.
What would you like to do?
1. Feed
2. Play
3. Quit
1
The puppy continues to eat as
you add another scoop of kibble
to its bowl.
What would you like to do?
1. Feed
2. Play
3. Quit
1
The puppy continues to eat as
you add another scoop of kibble
to its bowl.
The puppy ate so much it fell
asleep!
What would you like to do?
1. Feed
2. Play
3. Quit
2
The puppy is asleep. It doesn’t
want to play right now.
What would you like to do?
1. Feed
2. Play
3. Quit
1
The puppy wakes up and comes
running to eat.
What would you like to do?
1. Feed
2. Play
3. Quit
2
The puppy looks up from its food
and chases the ball you threw.
What would you like to do?
1. Feed
2. Play
3. Quit
2
You throw the ball again and the
puppy excitedly chases it.
What would you like to do?
1. Feed
2. Play
3. Quit
2
You throw the ball again and the
puppy excitedly chases it.
The puppy played so much it fell
asleep.
What would you like to do?
1. Feed
2. Play
3. Quit
1
The puppy wakes up and comes
running to eat.
What would you like to do?
1. Feed
2. Play
3. Quit
1
The puppy continues to eat as
you add another scoop of kibble
to its bowl.
What would you like to do?
1. Feed
2. Play
3. Quit
1
The puppy continues to eat as
you add another scoop of kibble
to its bowl.
The puppy ate so much it fell
asleep!
What would you like to do?
1. Feed
2. Play
3. Quit
3
