# Hero's Inventory 3.0
# Demonstrates lists

# create a list with some items and display with a for loop
inventory = ["sword", "armor", "shield", "healing potion"]
print("Your items:")
for item in inventory:
    print(item)

input("\nPress the enter key to continue.")

# get the length of a list
print("You have", len(inventory), "items in your possession.")

input("\nPress the enter key to continue.")

# test for membership with in
if "healing potion" in inventory:
    print("You will live to fight another day.")

# display one item through an index
index = int(input("\nEnter the index number for an item in inventory: "))
print("At index", index, "is", inventory[index])

# display a slice
start = int(input("\nEnter the index number to begin a slice: "))
finish = int(input("Enter the index number to end the slice: "))
print("inventory[", start, ":", finish, "] is", end=" ")
print(inventory[start:finish])

input("\nPress the enter key to continue.")

# concatenate two lists
chest = ["gold", "gems"]
print("You find a chest which contains:")
print(chest)
print("You add the contents of the chest to your inventory.")
inventory += chest
print("Your inventory is now:")
print(inventory)

input("\nPress the enter key to continue.")

# assign by index
print("You trade your sword for a crossbow.")
inventory[0] = "crossbow"
print("Your inventory is now:")
print(inventory)

input("\nPress the enter key to continue.")

# assign by slice
print("You use your gold and gems to buy an orb of future telling.")
inventory[4:6] = ["orb of future telling"]
print("Your inventory is now:")
print(inventory)

input("\nPress the enter key to continue.")

# delete an element
print("In a great battle, your shield is destroyed.")
del inventory[2]
print("Your inventory is now:")
print(inventory)

input("\nPress the enter key to continue.")

# delete a slice
print("Your crossbow and armor are stolen by thieves.")
del inventory[:2]
print("Your inventory is now:")
print(inventory)

input("\n\nPress the enter key to exit.")