Exercises

To test Steve’s understanding, Julia presented him with three coding challenges related to pure functions and side effects. “These exercises will help solidify the concepts,” she explained. “Give them a try and let me know if you have any questions.”

Exercise 1

Steve’s tower defense game calculates damage based on a global difficulty modifier. Refactor this function to make it pure:

public static double difficultyModifier = 1.0;
public double CalculateDamage(Tower tower, Enemy enemy)
{
     return tower.BaseDamage * enemy.DamageMultiplier * difficultyModifier;
}

Exercise 2

Steve’s game loads enemy data from a file, processes it, and updates the game state. Refactor this function to isolate its side effects:

public void LoadAndProcessEnemyData(string filePath)
{
     string jsonData = File.ReadAllText(filePath);
     List<Enemy&gt...