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/**
* @file quest.hpp
* Quest handling.
*/
#ifndef QUEST_HPP_
#define QUEST_HPP_
#include <entityx/entityx.h>
#include <forward_list>
#include <string>
#include <vector>
/**
* The Quest structure.
* Contains information necessary for a quest.
*/
struct Quest
{
Quest(std::string n = "", std::string d = "")
: name(n), desc(d) {}
std::string name; /**< the quest's title */
std::string desc; /**< the quest's description */
using Req = std::pair<std::string, int>;
std::forward_list<Req> reqs; /**< the quest's item requirements */
std::forward_list<Req> rewards; /**< the quest's rewards */
};
/**
* @class QuestSystem
* The quest system, handles active quests.
*/
class QuestSystem : public entityx::System<QuestSystem> {
private:
/**
* A list of all quests that are currently active.
*/
static std::vector<Quest> current;
public:
void update(entityx::EntityManager &en, entityx::EventManager &ev, entityx::TimeDelta dt) override;
/**
* Adds a quest to the current quest vector by its title.
* @param title the quest's title
* @param desc the quest's description
* @param req retrieved from XML, list of what the quest wants
* @return a possible error code
*/
static int assign(std::string title, std::string desc, std::string req);
/**
* Drops a quest through its title.
* @param title the quest's title
* @return a possible error code
*/
static int drop(std::string title);
/**
* Finishes a quest through it's title.
* @param title the quest's title
* @return a possible error code
*/
static int finish(std::string title);
/**
* Returns true if the system is currently taking the quest.
* @param title the quest's title
* @return if the quest is active.
*/
static bool hasQuest(std::string title);
static inline auto getQuestTitles(void) {
std::forward_list<std::string> titles;
for (const auto& q : current)
titles.emplace_front(q.name);
return titles;
}
static void save(void);
static void load(void);
};
#endif // QUEST_HPP_
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