Answer questions by Python:

Q7 - WanderBot (1.25 points)

Create a class called WanderBot. WanderBot is a bot that will wander around randomly.

Instance Attibutes:

• character - string
• position - list of [int, int]
• moves - list of list of [int, int]
• grid_size - None or int

Of these instance attributes, only character should be taken in as an input to __init__, with a default value of 8982.

Inside the __init__:

• self.character should be set as the chr of input character
• self.position should be set to starting position [0, 0]
• self.moves should be set as the list of possible moves, which are [[-1, 0], [1, 0], [0, 1], [0, -1]]
• self.grid_size should be initialized as None

Add two methods to WanderBot:

Method: wander

This method will choose a random move from the possibilities, making sure that move is valid on the current grid.

Procedure:

• Initialize a boolean variable has_new_pos as False
• Use a while loop, with the condition not has_new_pos
  • Set a variable move as the output of calling random.choice on self.moves
  • Add move to self.position, using add_lists (a function we created earlier), and assign the output to a new variable new_pos
  • Call check_bounds on new_pos, also passing self.grid_size into check_bounds
    • Assign the output of check_bounds to has_new_pos
    • This will lead to exiting the loop when a valid new position has been assigned
• Return new_pos

Method: move

• No inputs (other than self) or outputs, just sets self.position to be the output of calling self.wander().

Q8 - Multiple Bots (0.75 points)

Let's create a larger board with multiple bots exploring at the same time!

a) List of bots

Create a list bots_list that contains three distinct WanderBot instances.

Each WanderBot in bots_list will have a different shape, specified with the value passed into the character attribute.

The first WanderBot in bots_list should take the character input value 1078. The second: 1127. The third: 1279.

b) Create grid and play_board

Step 1: Assign two variables

1. grid_n should be assigned the integer 15
2. iter_n should be assigned the integer 25

Step 2: Call play_board

Call play_board() with the following inputs for the parameters in play_board:

• bots | input should be bots_list
• grid_size | input should be grid_n
• n_iter | input sould be iter_n

Upon executing the cell, you should see a a 15x15 grid, with three bots (of different shapes), wandering around the grid for 25 iterations.