How to switch players in a list using python?

Question

The code I am currently using,

if p == players[1]:
    p = players[2]
elif p == players[2]:
    p = players[3]
elif p == players[3]:
    p = players[4]
elif p == players[4]:
    p = players[5]
else:
    # et cetera

p holds the current player. Everyone playing is in a list called players. I did this once with a modulo but now I can't remember how.

Instead of setting the variable to the player, set the variable to the player index. Then you can simply increment the variable modulo len(players) — Barmar
– Barmar, Commented Nov 3, 2020 at 2:14

Reblochon Masque · Accepted Answer · 2020-11-03 02:16:44Z

1

Your idea to use modulo is correct, here is one way to approcah it:

def swap_players(ndx):
    return players[(ndx+1) % len(players)]

players = ['a', 'b', 'c']

for n in range(10):
    p = swap_players(n)
    print(p)

output:

b
c
a
b
c
a
b
c
a
b

answered Nov 3, 2020 at 2:16

Reblochon Masque

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Comments

Gilseung Ahn · Accepted Answer · 2020-11-03 02:12:19Z

1

Use index if the next player is i+1 th player, as follows.

i = players.index(p)
p = players[i+1]

answered Nov 3, 2020 at 2:12

Gilseung Ahn

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1 Comment

Sahit Over a year ago

just add if statement for the last element

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