[WIP] initial gamestate draft

libopenage/gamestate/gamestate.h

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+// Copyright 2017-2017 the openage authors. See copying.md for legal info.
+
+#pragma once
+
+#include "../curve/events/eventtarget.h"
+#include "../curve/map.h"
+#include "../util/vector.h"
+
+#include <unordered_map>
+
+namespace openage {
+namespace curvepong {
+
+using unit_id_t = uint64_t;
+using property_id_t = uint64_t;
+using player_id_t = uint64_t;
+
+class NyanObserver : curve::EventTarget {
+public:
+	NyanObserver(const EventManager &mgr, const nyan::Object &object) :
+		EventTarget(mgr) {
+		object.onchange([this](const curve::curve_time_t &at){
+				this->onchange(at);
+			});
+	}
+};
+
+struct NyanIdentifier {
+	nyan::fqon_t fqon;
+	nyan::memberid_t member;
+};
+
+
+class Player {
+public:
+	nyan::Object civilisation;
+
+	std::set<std::weak_ptr> units;
+};
+
+
+class Ability {
+public:
+	Ability(const nyan::Object &);
+	nyan::Object type;
+};
+
+class Property : curve::EventTarget {
+public:
+	Property(const EventManager *mgr) :
+		EventTarget(mgr) {};
+};
+
+/**
+ * Element in the game universe.
+ *
+ * Everything that is somehow relevant in the game is a Unit.
+ */
+class Unit : curve::EventTarget {
+public:
+	Unit (unit_id_t, const nyan::Object &);
+
+	// Has to be kept in sync with the player list
+	curve::Discrete<player_id_t> owning_player;
+
+	/** The least common denominator is the position of an object. */
+	std::shared_ptr<curve::Continuous<util::Vector<3>>> position;
+
+	/**
+	 * List of per-unit variables that are constructed from abilities and
+	 * properties from nyan
+	 */
+	curve::unordered_map<property_id_t, std::shared_ptr<Property>> properties;
+
+	/**
+	 * property tracking within the nyan tree
+	 *
+	 * properties watched by this unit in nyan. This is used to traverse the
+	 * on-change events from nyan into the event library.
+	 */
+	std::unordered_map<NyanIdentifier, std::shared_ptr<NyanObserver>> observed;
+
+	/**
+	 * The referenced unit type
+	 */
+	nyan::Object type;
+
+	/**
+	 * The unique identifier of this object.
+	 */
+	unit_id_t id;
+};
+
+class Universe {
+public:
+	Universe(const nyan::Object &);
+	nyan::Object data;
+
+	curve::unordered_map<unit_id_t, Unit> units;
+
+	unit_id_t next_unit_id;
+};
+
+class Game {
+public:
+	Universe universe;
+	EventManager evntmgr;
+	std::unordered_map<player_id_t, Player> players;
+};
+
+}}