Entities redesign and a few ERM features

* Made most Handlers derived from CHandlerBase and moved service API there.
* Declared existing Entity APIs.
* Added basic script context caching
* Started Lua script module
* Started Lua spell effect API
* Started script state persistence
* Started battle info callback binding
* CommitPackage removed
* Extracted spells::Caster to own header; Expanded Spell API.
* implemented !!MC:S, !!FU:E, !!FU:P, !!MA, !!VR:H, !!VR:C
* !!BU:C, !!BU:E, !!BU:G, !!BU:M implemented
* Allow use of "MC:S@varName@" to declare normal variable (technically v-variable with string key)
* Re-enabled VERM macros.
* !?GM0 added
* !?TM implemented
* Added !!MF:N
* Started !?OB, !!BM, !!HE, !!OW, !!UN
* Added basic support of w-variables
* Added support for ERM indirect variables
* Made !?FU regular trigger
* !!re (ERA loop receiver) implemented
* Fixed ERM receivers with zero args.

lib/events/ApplyDamage.cpp

@@ -0,0 +1,62 @@
+/*
+ * ApplyDamage.cpp, part of VCMI engine
+ *
+ * Authors: listed in file AUTHORS in main folder
+ *
+ * License: GNU General Public License v2.0 or later
+ * Full text of license available in license.txt file, in main folder
+ *
+ */
+#include "StdInc.h"
+
+#include <vcmi/Environment.h>
+
+#include "ApplyDamage.h"
+
+#include "../../lib/NetPacks.h"
+
+namespace events
+{
+
+SubscriptionRegistry<ApplyDamage> * ApplyDamage::getRegistry()
+{
+	static std::unique_ptr<SubscriptionRegistry<ApplyDamage>> Instance = make_unique<SubscriptionRegistry<ApplyDamage>>();
+	return Instance.get();
+}
+
+CApplyDamage::CApplyDamage(const Environment * env_, BattleStackAttacked * pack_, std::shared_ptr<battle::Unit> target_)
+	: env(env_),
+	pack(pack_),
+	target(target_)
+
+{
+	initalDamage = pack->damageAmount;
+}
+
+bool CApplyDamage::isEnabled() const
+{
+	return true;
+}
+
+int64_t CApplyDamage::getInitalDamage() const
+{
+	return initalDamage;
+}
+
+int64_t CApplyDamage::getDamage() const
+{
+	return pack->damageAmount;
+}
+
+void CApplyDamage::setDamage(int64_t value)
+{
+	pack->damageAmount = value;
+}
+
+const battle::Unit * CApplyDamage::getTarget() const
+{
+	return target.get();
+}
+
+
+};

lib/events/ApplyDamage.h

@@ -0,0 +1,39 @@
+/*
+ * ApplyDamage.h, part of VCMI engine
+ *
+ * Authors: listed in file AUTHORS in main folder
+ *
+ * License: GNU General Public License v2.0 or later
+ * Full text of license available in license.txt file, in main folder
+ *
+ */
+
+#pragma once
+
+#include <vcmi/events/ApplyDamage.h>
+
+namespace events
+{
+
+class DLL_LINKAGE CApplyDamage : public ApplyDamage
+{
+public:
+	CApplyDamage(const Environment * env_, BattleStackAttacked * pack_, std::shared_ptr<battle::Unit> target_);
+
+	bool isEnabled() const override;
+	int64_t getInitalDamage() const override;
+	int64_t getDamage() const override;
+	void setDamage(int64_t value) override;
+	const battle::Unit * getTarget() const override;
+private:
+	int64_t initalDamage;
+
+	const Environment * env;
+	BattleStackAttacked * pack;
+	std::shared_ptr<battle::Unit> target;
+};
+
+}
+
+
+

lib/events/GameResumed.cpp

@@ -0,0 +1,39 @@
+/*
+ * GameResumed.cpp, part of VCMI engine
+ *
+ * Authors: listed in file AUTHORS in main folder
+ *
+ * License: GNU General Public License v2.0 or later
+ * Full text of license available in license.txt file, in main folder
+ *
+ */
+#include "StdInc.h"
+
+#include "GameResumed.h"
+
+#include <vcmi/events/EventBus.h>
+
+namespace events
+{
+
+SubscriptionRegistry<GameResumed> * GameResumed::getRegistry()
+{
+	static std::unique_ptr<SubscriptionRegistry<GameResumed>> Instance = make_unique<SubscriptionRegistry<GameResumed>>();
+	return Instance.get();
+}
+
+void GameResumed::defaultExecute(const EventBus * bus)
+{
+	CGameResumed event;
+	bus->executeEvent(event);
+}
+
+CGameResumed::CGameResumed() = default;
+
+bool CGameResumed::isEnabled() const
+{
+	return true;
+}
+
+
+}

lib/events/GameResumed.h

@@ -0,0 +1,26 @@
+/*
+ * GameResumed.h, part of VCMI engine
+ *
+ * Authors: listed in file AUTHORS in main folder
+ *
+ * License: GNU General Public License v2.0 or later
+ * Full text of license available in license.txt file, in main folder
+ *
+ */
+
+#pragma once
+
+#include <vcmi/events/GameResumed.h>
+
+namespace events
+{
+
+class DLL_LINKAGE CGameResumed : public GameResumed
+{
+public:
+	CGameResumed();
+
+	bool isEnabled() const override;
+};
+
+}

lib/events/ObjectVisitEnded.cpp

@@ -0,0 +1,55 @@
+/*
+ * ObjectVisitEnded.cpp, part of VCMI engine
+ *
+ * Authors: listed in file AUTHORS in main folder
+ *
+ * License: GNU General Public License v2.0 or later
+ * Full text of license available in license.txt file, in main folder
+ *
+ */
+#include "StdInc.h"
+
+#include "ObjectVisitEnded.h"
+
+#include <vcmi/events/EventBus.h>
+
+
+namespace events
+{
+
+SubscriptionRegistry<ObjectVisitEnded> * ObjectVisitEnded::getRegistry()
+{
+	static std::unique_ptr<Sub> Instance = make_unique<Sub>();
+	return Instance.get();
+}
+
+void ObjectVisitEnded::defaultExecute(const EventBus * bus, const ExecHandler & execHandler,
+	const PlayerColor & player, const ObjectInstanceID & heroId)
+{
+	CObjectVisitEnded event(player, heroId);
+	bus->executeEvent(event, execHandler);
+}
+
+CObjectVisitEnded::CObjectVisitEnded(const PlayerColor & player_, const ObjectInstanceID & heroId_)
+	: player(player_),
+	heroId(heroId_)
+{
+
+}
+
+bool CObjectVisitEnded::isEnabled() const
+{
+	return true;
+}
+
+PlayerColor CObjectVisitEnded::getPlayer() const
+{
+	return player;
+}
+
+ObjectInstanceID CObjectVisitEnded::getHero() const
+{
+	return heroId;
+}
+
+}

lib/events/ObjectVisitEnded.h

@@ -0,0 +1,34 @@
+/*
+ * ObjectVisitEnded.h, part of VCMI engine
+ *
+ * Authors: listed in file AUTHORS in main folder
+ *
+ * License: GNU General Public License v2.0 or later
+ * Full text of license available in license.txt file, in main folder
+ *
+ */
+
+#pragma once
+
+#include <vcmi/events/ObjectVisitEnded.h>
+
+#include "../GameConstants.h"
+
+namespace events
+{
+
+class DLL_LINKAGE CObjectVisitEnded : public ObjectVisitEnded
+{
+public:
+	CObjectVisitEnded(const PlayerColor & player_, const ObjectInstanceID & heroId_);
+
+	PlayerColor getPlayer() const override;
+	ObjectInstanceID getHero() const override;
+	bool isEnabled() const override;
+private:
+	PlayerColor player;
+	ObjectInstanceID heroId;
+	bool enabled;
+};
+
+}

lib/events/ObjectVisitStarted.cpp

@@ -0,0 +1,67 @@
+/*
+ * ObjectVisitStarted.cpp, part of VCMI engine
+ *
+ * Authors: listed in file AUTHORS in main folder
+ *
+ * License: GNU General Public License v2.0 or later
+ * Full text of license available in license.txt file, in main folder
+ *
+ */
+#include "StdInc.h"
+
+#include "ObjectVisitStarted.h"
+
+#include <vcmi/events/EventBus.h>
+
+
+namespace events
+{
+
+SubscriptionRegistry<ObjectVisitStarted> * ObjectVisitStarted::getRegistry()
+{
+	static std::unique_ptr<Sub> Instance = make_unique<Sub>();
+	return Instance.get();
+}
+
+void ObjectVisitStarted::defaultExecute(const EventBus * bus, const ExecHandler & execHandler,
+	const PlayerColor & player, const ObjectInstanceID & heroId, const ObjectInstanceID & objId)
+{
+	CObjectVisitStarted event(player, heroId, objId);
+	bus->executeEvent(event, execHandler);
+}
+
+CObjectVisitStarted::CObjectVisitStarted(const PlayerColor & player_, const ObjectInstanceID & heroId_, const ObjectInstanceID & objId_)
+	: player(player_),
+	heroId(heroId_),
+	objId(objId_),
+	enabled(true)
+{
+}
+
+PlayerColor CObjectVisitStarted::getPlayer() const
+{
+	return player;
+}
+
+ObjectInstanceID CObjectVisitStarted::getHero() const
+{
+	return heroId;
+}
+
+ObjectInstanceID CObjectVisitStarted::getObject() const
+{
+	return objId;
+}
+
+bool CObjectVisitStarted::isEnabled() const
+{
+	return enabled;
+}
+
+void CObjectVisitStarted::setEnabled(bool enable)
+{
+	enabled = enable;
+}
+
+
+}

lib/events/ObjectVisitStarted.h

@@ -0,0 +1,38 @@
+/*
+ * ObjectVisitStarted.h, part of VCMI engine
+ *
+ * Authors: listed in file AUTHORS in main folder
+ *
+ * License: GNU General Public License v2.0 or later
+ * Full text of license available in license.txt file, in main folder
+ *
+ */
+
+#pragma once
+
+#include <vcmi/events/ObjectVisitStarted.h>
+
+#include "../GameConstants.h"
+
+namespace events
+{
+
+class DLL_LINKAGE CObjectVisitStarted : public ObjectVisitStarted
+{
+public:
+	CObjectVisitStarted(const PlayerColor & player_, const ObjectInstanceID & heroId_, const ObjectInstanceID & objId_);
+
+	PlayerColor getPlayer() const override;
+	ObjectInstanceID getHero() const override;
+	ObjectInstanceID getObject() const override;
+
+	bool isEnabled() const override;
+	void setEnabled(bool enable) override;
+private:
+	PlayerColor player;
+	ObjectInstanceID heroId;
+	ObjectInstanceID objId;
+	bool enabled;
+};
+
+}

lib/events/PlayerGotTurn.cpp

@@ -0,0 +1,61 @@
+/*
+ * PlayerGotTurn.cpp, part of VCMI engine
+ *
+ * Authors: listed in file AUTHORS in main folder
+ *
+ * License: GNU General Public License v2.0 or later
+ * Full text of license available in license.txt file, in main folder
+ *
+ */
+#include "StdInc.h"
+
+#include "PlayerGotTurn.h"
+
+#include <vcmi/events/EventBus.h>
+
+namespace events
+{
+
+SubscriptionRegistry<PlayerGotTurn> * PlayerGotTurn::getRegistry()
+{
+	static std::unique_ptr<SubscriptionRegistry<PlayerGotTurn>> Instance = make_unique<SubscriptionRegistry<PlayerGotTurn>>();
+	return Instance.get();
+}
+
+void PlayerGotTurn::defaultExecute(const EventBus * bus, const ExecHandler & execHandler, PlayerColor & player)
+{
+	CPlayerGotTurn event;
+	event.setPlayer(player);
+	bus->executeEvent(event, execHandler);
+	player = event.getPlayer();
+}
+
+CPlayerGotTurn::CPlayerGotTurn() = default;
+
+bool CPlayerGotTurn::isEnabled() const
+{
+	return true;
+}
+
+PlayerColor CPlayerGotTurn::getPlayer() const
+{
+	return player;
+}
+
+void CPlayerGotTurn::setPlayer(const PlayerColor & value)
+{
+	player = value;
+}
+
+int32_t CPlayerGotTurn::getPlayerIndex() const
+{
+	return player.getNum();
+}
+
+void CPlayerGotTurn::setPlayerIndex(int32_t value)
+{
+	player = PlayerColor(value);
+}
+
+
+}

lib/events/PlayerGotTurn.h

@@ -0,0 +1,36 @@
+/*
+ * PlayerGotTurn.h, part of VCMI engine
+ *
+ * Authors: listed in file AUTHORS in main folder
+ *
+ * License: GNU General Public License v2.0 or later
+ * Full text of license available in license.txt file, in main folder
+ *
+ */
+
+#pragma once
+
+#include <vcmi/events/PlayerGotTurn.h>
+
+#include "../GameConstants.h"
+
+namespace events
+{
+
+class DLL_LINKAGE CPlayerGotTurn : public PlayerGotTurn
+{
+public:
+	CPlayerGotTurn();
+
+	bool isEnabled() const override;
+
+	PlayerColor getPlayer() const override;
+	void setPlayer(const PlayerColor & value) override;
+
+	int32_t getPlayerIndex() const override;
+	void setPlayerIndex(int32_t value) override;
+private:
+	PlayerColor player;
+};
+
+}

lib/events/TurnStarted.cpp

@@ -0,0 +1,39 @@
+/*
+ * TurnStarted.cpp, part of VCMI engine
+ *
+ * Authors: listed in file AUTHORS in main folder
+ *
+ * License: GNU General Public License v2.0 or later
+ * Full text of license available in license.txt file, in main folder
+ *
+ */
+#include "StdInc.h"
+
+#include "TurnStarted.h"
+
+#include <vcmi/events/EventBus.h>
+
+namespace events
+{
+
+SubscriptionRegistry<TurnStarted> * TurnStarted::getRegistry()
+{
+	static std::unique_ptr<SubscriptionRegistry<TurnStarted>> Instance = make_unique<SubscriptionRegistry<TurnStarted>>();
+	return Instance.get();
+}
+
+void TurnStarted::defaultExecute(const EventBus * bus)
+{
+	CTurnStarted event;
+	bus->executeEvent(event);
+}
+
+CTurnStarted::CTurnStarted() = default;
+
+bool CTurnStarted::isEnabled() const
+{
+	return true;
+}
+
+
+}

lib/events/TurnStarted.h

@@ -0,0 +1,26 @@
+/*
+ * TurnStarted.h, part of VCMI engine
+ *
+ * Authors: listed in file AUTHORS in main folder
+ *
+ * License: GNU General Public License v2.0 or later
+ * Full text of license available in license.txt file, in main folder
+ *
+ */
+
+#pragma once
+
+#include <vcmi/events/TurnStarted.h>
+
+namespace events
+{
+
+class DLL_LINKAGE CTurnStarted : public TurnStarted
+{
+public:
+	CTurnStarted();
+	bool isEnabled() const override;
+	static void defaultExecute(const EventBus * bus);
+};
+
+}