CODEWITHSUNDEEP
pythonpython-3.x
malthuseater
malthuseater

Reputation: 11

How do I add to a variable, then loop back to 0 once a maximum value is achived?

I want to add x to value, however when the value is equal to max_value, it much wrap back to zero and continue adding the rest of x. For example,

x = 5
value = 6
max_value = 8

This should return value = 3

So far I have

value += x
    if value >= max_value:
        value = value - max_value

However this only works for when value + x is less than 2 * max_value.

Upvotes: 0

Views: 280

Answers (1)

L.Grozinger
L.Grozinger

Reputation: 2398

What you want is modular arithmetic.

You can use the modulo operator % in Python to achieve this. E.g.

x = 5
value = 6
max_value = 8

value = (value + x) % max_value

The modulo operator (%) returns the remainder of the integer division of the left side by the right side. See the docs for details.

Upvotes: 4

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