moon_weight.py

#
# An example program to calculate weight on moon after a certain number
# of years. We are assuming someone who currently weighs more than 150 will only
# gain .5 pounds a year, while lighter individuals will gain 2 pounds a year.


# This is the concept we just learned. Defining a function in python.
# We use a function to calculate moon weight, mWeight after a certain number
# of years, years.
def moon_weight(current_weight,years):

    pounds_per_year = 2

    if current_weight > 150:
        pounds_per_year = 0.5

    future_weight = current_weight + (pounds_per_year * years)

    mWeight = future_weight * 0.165

    return mWeight


# Now, let's test this method a few times. Note how we are now "calling"
# the method we defined.
print("For someone who weighs 80 pounds now, they will weigh this on the moon after 15 years:")
new_weight = moon_weight(80,15)
print(str(new_weight))
print("")

print("For someone who weighs 160 pounds now, they will weigh this on the moon after 17 years:")
new_weight = moon_weight(160,17)
print(str(new_weight))
print("")

print("For someone who weighs 40 pounds now, they will weigh this on the moon after 30 years:")
new_weight = moon_weight(40,30)
print(str(new_weight))
print("")