EntityList

gistfile1.cpp

#if 1
#define CRASH_1
#else
#define CRASH_2
#endif

#include <vector>
#include <string>

using namespace std;

struct Entity {
	int m_index;
	string m_name;

	Entity(string name) { m_name = name; }

	virtual struct Monster* AsMonster() { return nullptr; }
	virtual struct Player* AsPlayer() { return nullptr; }
};

struct Player : public Entity {
	int m_attacker = -1;

	Player(string name) : Entity(name) { }

	virtual struct Player* AsPlayer() { return this; }
};

struct Monster : public Entity {
	int m_target = -1;

	Monster(string name) : Entity(name) { }

	virtual struct Monster* AsMonster() { return this; }
};

struct EntityList {
	vector<Entity*> m_entities;

	Entity* FindEntity(string name) {
		for (size_t k = 0; k < m_entities.size(); k++) {
			if (m_entities[k]->m_name == name)
				return m_entities[k];
		}

		return nullptr;
	}

	Entity* GetEntity(int index) {
		if (index < 0 || index >= m_entities.size())
			return nullptr;

		return m_entities[index];
	}
};

struct GameFramework {
	struct EntityReflection* m_entity_reflection;
	struct PlayerInfo* m_player_info;
	struct LevelData* m_level_data;
	EntityList* m_entity_list;
};

struct Game {
	struct NetworkLayer* m_network_layer;
	struct PhysicsSimulation* m_physics_simulation;
	GameFramework* m_game_framework;

	static Game* s_game;
};

Game* Game::s_game = new Game;

__declspec(noinline) void Setup()
{
	Game::s_game->m_game_framework = new GameFramework;
	Game::s_game->m_game_framework->m_entity_list = new EntityList;

	Player* player = new Player("player");
	Monster* monster1 = new Monster("monster1");
	Monster* monster2 = new Monster("monster2");

	EntityList* list = Game::s_game->m_game_framework->m_entity_list;

	auto PushEntity = [](EntityList* list, Entity* entity) {
		entity->m_index = (int)list->m_entities.size();
		list->m_entities.push_back(entity);
	};

	PushEntity(list, player);
	PushEntity(list, monster1);
	PushEntity(list, monster2);

	player->m_attacker = monster1->m_index;

#ifdef CRASH_1
	monster1->m_target = player->m_index;
#endif

#ifdef CRASH_2
	monster1->m_target = -1;
#endif

	monster2->m_target = monster1->m_index;
}

__declspec(noinline) string FindMonsterTarget(Entity* monster1, Entity* monster2, Entity* monster3, Entity* monster4, Entity* monster5) {
	printf("%X %X %X %X\n", monster1, monster2, monster3, monster4);

#ifdef CRASH_2
	return Game::s_game->m_game_framework->m_entity_list->GetEntity(monster4->AsMonster()->m_target)->AsPlayer()->m_name.c_str();
#endif

#ifdef CRASH_1
	return Game::s_game->m_game_framework->m_entity_list->GetEntity(monster5->AsPlayer()->m_attacker)->m_name.c_str();
#endif
}

int main(int argc, const char** args)
{
	Setup();

	EntityList* list = Game::s_game->m_game_framework->m_entity_list;

	Entity* player = list->FindEntity("player");
	Entity* door1 = list->FindEntity("door1");
	Entity* door2 = list->FindEntity("door2");
	Entity* monster1 = list->FindEntity("monster1");
	Entity* monster2 = list->FindEntity("monster2");
	return (int)FindMonsterTarget(player, door1, door2, monster1, monster2).length();
}