yknishidate

#include <iostream>

class Heroine;

enum class Input
{
    PressDown,
    ReleaseDown
};

yknishidate

#include <iostream>

class Monster
{
public:
    virtual void attack() = 0;
};

class Ghost : public Monster
{

yknishidate

#include <iostream>
#include <vector>

enum class Event
{
    EntityFell,
};

class Observer
{

yknishidate

#include <iostream>

constexpr int WIDTH = 10;
constexpr int HEIGHT = 10;

class Terrain
{
public:
    Terrain(int moveCost, bool isWater)
    : m_moveCost(moveCost)

yknishidate

#include <iostream>
#include <string>

class Command
{
public:
    virtual ~Command() {}
    virtual void execute() = 0;
};