Add Special Item - codepath/compsci_guides GitHub Wiki

Unit 5 Session 1 (Click for link to problem statements)

U-nderstand

Understand what the interviewer is asking for by using test cases and questions about the problem.

• What happens if an invalid item name is provided?
  • The method should not add the invalid item name to the items list, effectively ignoring it.

P-lan

Plan the solution with appropriate visualizations and pseudocode.

General Idea: Extend the Player class with a method add_item() that checks if an item is valid before adding it to the player's items attribute.

1) Define a method `add_item` that accepts an `item_name` parameter.
2) Inside the method, check if `item_name` is in the list of valid items.
3) If valid, append `item_name` to the `items` list of the player.
4) If the item is not valid, no action is taken (the method can simply exit).

⚠️ Common Mistakes

• Forgetting to check item validity before adding it to the list.

I-mplement

class Player():
    def  __init__(self, character, kart):
        self.character = character
        self.kart = kart
        self.items = []
        
    def add_item(self, item_name):
        valid_items = ["banana", "green shell", "red shell", "bob-omb", "super star", "lightning", "bullet bill"]
        if item_name in valid_items:
            self.items.append(item_name)