I am having difficulties trying to add a decorator pattern to an already existing game to create a holiday them. I have most of the code, but I$\text{'}$m not sure how to get the output to reflect the holiday theme

#include "HolidayDecorator.h$"$

#include

#include

#include

class ChristmasDecorator : public HolidayDecorator $\{$

class HolidayDecorator $\{$

public:

ChristmasDecorator$($std::unique$\_$ptr decoratedObject$)$;

void addHolidayEffect$($SDL$\_$Renderer$*$ renderer$)$ override;

private:

std::unique$\_$ptr decoratedObject;

static const int screenWidth $=800$;

static const int screenHeight $=600$;

static const int maxSnowflakes $=100$;

std::vector snowflakes;

void drawSnow$($SDL$\_$Renderer$*$ renderer$)$;

void drawLights$($SDL$\_$Renderer$*$ renderer$)$;