solution for exercise 7.2 calling a function

[onebigear]

looks like it'a unfilled in both these two pages :) http://learningprocessing.com/exercises/chp07/exercise-07-02-function-definition https://github.com/shiffman/LearningProcessing/blob/master/chp07_functions/exercise_07_02_function_definition/exercise_07_02_function_definition.pde

thanks!