Merge branch 'develop' into interface-builder

2024-11-28 08:48:48 +02:00 · 2022-12-24 21:56:29 +04:00 · 2022-12-24 21:56:29 +04:00 · 785787e454
commit 785787e454
parent ad5bf2ac4f 5b57b69699
93 changed files with 888 additions and 279 deletions
--- a/.github/workflows/github.yml
+++ b/.github/workflows/github.yml
@ -4,6 +4,8 @@ on:
  push:
    branches:
      - features/*
+      - beta
+      - master
  pull_request:
  schedule:
    - cron: '0 2 * * *'
@ -158,6 +160,7 @@ jobs:
        fi
        echo VCMI_PACKAGE_FILE_NAME="$VCMI_PACKAGE_FILE_NAME" >> $GITHUB_ENV
        echo VCMI_PACKAGE_NAME_SUFFIX="$VCMI_PACKAGE_NAME_SUFFIX" >> $GITHUB_ENV
+        echo VCMI_PACKAGE_GITVERSION="$VCMI_PACKAGE_GITVERSION" >> $GITHUB_ENV
      env:
        PULL_REQUEST: ${{ github.event.pull_request.number }}

@ -171,7 +174,8 @@ jobs:
            ${{matrix.cmake_args}} -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} \
            -DENABLE_TEST=${{matrix.test}} \
            -DPACKAGE_NAME_SUFFIX:STRING="$VCMI_PACKAGE_NAME_SUFFIX" \
-            -DPACKAGE_FILE_NAME:STRING="$VCMI_PACKAGE_FILE_NAME"
+            -DPACKAGE_FILE_NAME:STRING="$VCMI_PACKAGE_FILE_NAME" \
+            -DENABLE_GITVERSION="$VCMI_PACKAGE_GITVERSION"
      env:
        CC: ${{ matrix.cc }}
        CXX: ${{ matrix.cxx }}
@ -222,7 +226,7 @@ jobs:
          ${{github.workspace}}/**/${{ env.VCMI_PACKAGE_FILE_NAME }}.${{ matrix.extension }}

    - name: Upload build
-      if: ${{ matrix.pack == 1 && (github.ref == 'refs/heads/develop' || github.ref == 'refs/heads/beta' || startsWith(github.ref, 'refs/heads/features/')) && matrix.platform != 'msvc' }}
+      if: ${{ matrix.pack == 1 && (github.ref == 'refs/heads/develop' || github.ref == 'refs/heads/beta' || github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/heads/features/')) && matrix.platform != 'msvc' }}
      run: |
        cd '${{github.workspace}}/out/build/${{matrix.preset}}'
        source '${{github.workspace}}/CI/upload_package.sh'
@ -240,7 +244,7 @@ jobs:

    - name: Trigger Android
      uses: peter-evans/repository-dispatch@v1
-      if: ${{ github.ref == 'refs/heads/develop' && matrix.platform == 'mxe' }}
+      if: ${{ (github.ref == 'refs/heads/develop' || github.ref == 'refs/heads/master') && matrix.platform == 'mxe' }}
      with:
        token: ${{ secrets.VCMI_ANDROID_ACCESS_TOKEN }}
        repository: vcmi/vcmi-android
--- a/AI/BattleAI/BattleExchangeVariant.cpp
+++ b/AI/BattleAI/BattleExchangeVariant.cpp
@ -204,10 +204,14 @@ MoveTarget BattleExchangeEvaluator::findMoveTowardsUnreachable(const battle::Uni
 	if(targets.unreachableEnemies.empty())
 		return result;

+	auto speed = activeStack->Speed();
+
+	if(speed == 0)
+		return result;
+
 	updateReachabilityMap(hb);

 	auto dists = cb->getReachability(activeStack);
-	auto speed = activeStack->Speed();

 	for(const battle::Unit * enemy : targets.unreachableEnemies)
 	{
--- a/AI/CMakeLists.txt
+++ b/AI/CMakeLists.txt
@ -40,4 +40,6 @@ add_subdirectory(BattleAI)
 add_subdirectory(StupidAI)
 add_subdirectory(EmptyAI)
 add_subdirectory(VCAI)
-add_subdirectory(Nullkiller)
+if(ENABLE_NULLKILLER_AI)
+	add_subdirectory(Nullkiller)
+endif()
--- a/AI/Nullkiller/AIGateway.cpp
+++ b/AI/Nullkiller/AIGateway.cpp
@ -30,6 +30,7 @@ namespace NKAI
 // our to enemy strength ratio constants
 const float SAFE_ATTACK_CONSTANT = 1.2;
 const float RETREAT_THRESHOLD = 0.3;
+const double RETREAT_ABSOLUTE_THRESHOLD = 10000.;

 //one thread may be turn of AI and another will be handling a side effect for AI2
 boost::thread_specific_ptr<CCallback> cb;
@ -500,10 +501,11 @@ boost::optional<BattleAction> AIGateway::makeSurrenderRetreatDecision(
 	LOG_TRACE(logAi);
 	NET_EVENT_HANDLER;

-	double fightRatio = battleState.getOurStrength() / (double)battleState.getEnemyStrength();
+	double ourStrength = battleState.getOurStrength();
+	double fightRatio = ourStrength / (double)battleState.getEnemyStrength();

 	// if we have no towns - things are already bad, so retreat is not an option.
-	if(cb->getTownsInfo().size() && fightRatio < RETREAT_THRESHOLD && battleState.canFlee)
+	if(cb->getTownsInfo().size() && ourStrength < RETREAT_ABSOLUTE_THRESHOLD && fightRatio < RETREAT_THRESHOLD && battleState.canFlee)
 	{
 		return BattleAction::makeRetreat(battleState.ourSide);
 	}
@ -533,6 +535,7 @@ void AIGateway::yourTurn()
 	LOG_TRACE(logAi);
 	NET_EVENT_HANDLER;
 	status.startedTurn();
+
 	makingTurn = make_unique<boost::thread>(&AIGateway::makeTurn, this);
 }

@ -1426,7 +1429,15 @@ void AIGateway::endTurn()
 	{
 		logAi->error("Not having turn at the end of turn???");
 	}
+
 	logAi->debug("Resources at the end of turn: %s", cb->getResourceAmount().toString());
+
+	if(cb->getPlayerStatus(playerID) != EPlayerStatus::INGAME)
+	{
+		logAi->info("Ending turn is not needed because we already lost");
+		return;
+	}
+
 	do
 	{
 		cb->endTurn();
@ -1599,7 +1610,7 @@ void AIStatus::waitTillFree()
 {
 	boost::unique_lock<boost::mutex> lock(mx);
 	while(battle != NO_BATTLE || !remainingQueries.empty() || !objectsBeingVisited.empty() || ongoingHeroMovement)
-		cv.timed_wait(lock, boost::posix_time::milliseconds(100));
+		cv.timed_wait(lock, boost::posix_time::milliseconds(10));
 }

 bool AIStatus::haveTurn()
--- a/AI/Nullkiller/Engine/Nullkiller.cpp
+++ b/AI/Nullkiller/Engine/Nullkiller.cpp
@ -74,6 +74,8 @@ Goals::TTask Nullkiller::choseBestTask(Goals::TTaskVec & tasks) const

 Goals::TTask Nullkiller::choseBestTask(Goals::TSubgoal behavior, int decompositionMaxDepth) const
 {
+	boost::this_thread::interruption_point();
+
 	logAi->debug("Checking behavior %s", behavior->toString());

 	auto start = std::chrono::high_resolution_clock::now();
@ -160,8 +162,12 @@ void Nullkiller::updateAiState(int pass, bool fast)
 			cfg.mainTurnDistanceLimit = MAIN_TURN_DISTANCE_LIMIT * ((int)scanDepth + 1);
 		}

+		boost::this_thread::interruption_point();
+
 		pathfinder->updatePaths(activeHeroes, cfg);

+		boost::this_thread::interruption_point();
+
 		objectClusterizer->clusterize();
 	}

@ -212,6 +218,8 @@ HeroLockedReason Nullkiller::getHeroLockedReason(const CGHeroInstance * hero) co

 void Nullkiller::makeTurn()
 {
+	boost::lock_guard<boost::mutex> sharedStorageLock(AISharedStorage::locker);
+
 	const int MAX_DEPTH = 10;

 	resetAiState();
--- a/AI/Nullkiller/Pathfinding/AINodeStorage.cpp
+++ b/AI/Nullkiller/Pathfinding/AINodeStorage.cpp
@ -23,6 +23,7 @@ namespace NKAI
 {

 std::shared_ptr<boost::multi_array<AIPathNode, 5>> AISharedStorage::shared;
+boost::mutex AISharedStorage::locker;
 std::set<int3> commitedTiles;
 std::set<int3> commitedTilesInitial;

@ -119,18 +120,6 @@ void AINodeStorage::clear()
 	turnDistanceLimit[HeroRole::SCOUT] = 255;
 }

-const AIPathNode * AINodeStorage::getAINode(const CGPathNode * node) const
-{
-	return static_cast<const AIPathNode *>(node);
-}
-
-void AINodeStorage::updateAINode(CGPathNode * node, std::function<void(AIPathNode *)> updater)
-{
-	auto aiNode = static_cast<AIPathNode *>(node);
-
-	updater(aiNode);
-}
-
 boost::optional<AIPathNode *> AINodeStorage::getOrCreateNode(
 	const int3 & pos, 
 	const EPathfindingLayer layer, 
@ -823,13 +812,6 @@ ExchangeCandidate HeroChainCalculationTask::calculateExchange(
 	return candidate;
 }

-const CGHeroInstance * AINodeStorage::getHero(const CGPathNode * node) const
-{
-	auto aiNode = getAINode(node);
-
-	return aiNode->actor->hero;
-}
-
 const std::set<const CGHeroInstance *> AINodeStorage::getAllHeroes() const
 {
 	std::set<const CGHeroInstance *> heroes;
--- a/AI/Nullkiller/Pathfinding/AINodeStorage.h
+++ b/AI/Nullkiller/Pathfinding/AINodeStorage.h
@ -135,6 +135,8 @@ class AISharedStorage
 	static std::shared_ptr<boost::multi_array<AIPathNode, 5>> shared;
 	std::shared_ptr<boost::multi_array<AIPathNode, 5>> nodes;
 public:
+	static boost::mutex locker;
+
 	AISharedStorage(int3 mapSize);
 	~AISharedStorage();

@ -196,8 +198,24 @@ public:
 		int movementLeft,
 		float cost) const;

-	const AIPathNode * getAINode(const CGPathNode * node) const;
-	void updateAINode(CGPathNode * node, std::function<void (AIPathNode *)> updater);
+	inline const AIPathNode * getAINode(const CGPathNode * node) const
+	{
+		return static_cast<const AIPathNode *>(node);
+	}
+
+	inline void updateAINode(CGPathNode * node, std::function<void (AIPathNode *)> updater)
+	{
+		auto aiNode = static_cast<AIPathNode *>(node);
+
+		updater(aiNode);
+	}
+
+	inline const CGHeroInstance * getHero(const CGPathNode * node) const
+	{
+		auto aiNode = getAINode(node);
+
+		return aiNode->actor->hero;
+	}

 	bool hasBetterChain(const PathNodeInfo & source, CDestinationNodeInfo & destination) const;

@ -223,18 +241,17 @@ public:
 	void setTownsAndDwellings(
 		const std::vector<const CGTownInstance *> & towns,
 		const std::set<const CGObjectInstance *> & visitableObjs);
-	const CGHeroInstance * getHero(const CGPathNode * node) const;
 	const std::set<const CGHeroInstance *> getAllHeroes() const;
 	void clear();
 	bool calculateHeroChain();
 	bool calculateHeroChainFinal();

-	uint64_t evaluateDanger(const int3 &  tile, const CGHeroInstance * hero, bool checkGuards) const
+	inline uint64_t evaluateDanger(const int3 &  tile, const CGHeroInstance * hero, bool checkGuards) const
 	{
 		return dangerEvaluator->evaluateDanger(tile, hero, checkGuards);
 	}

-	uint64_t evaluateArmyLoss(const CGHeroInstance * hero, uint64_t armyValue, uint64_t danger) const
+	inline uint64_t evaluateArmyLoss(const CGHeroInstance * hero, uint64_t armyValue, uint64_t danger) const
 	{
 		double ratio = (double)danger / (armyValue * hero->getFightingStrength());

@ -243,6 +260,7 @@ public:

 	STRONG_INLINE
 	void resetTile(const int3 & tile, EPathfindingLayer layer, CGPathNode::EAccessibility accessibility);
+
 	STRONG_INLINE int getBucket(const ChainActor * actor) const
 	{
 		return ((uintptr_t)actor * 395) % AIPathfinding::BUCKET_COUNT;
--- a/AI/Nullkiller/Pathfinding/AIPathfinder.cpp
+++ b/AI/Nullkiller/Pathfinding/AIPathfinder.cpp
@ -80,6 +80,8 @@ void AIPathfinder::updatePaths(std::map<const CGHeroInstance *, HeroRole> heroes

 		do
 		{
+			boost::this_thread::interruption_point();
+
 			while(storage->calculateHeroChain())
 			{
 				boost::this_thread::interruption_point();
@ -91,6 +93,8 @@ void AIPathfinder::updatePaths(std::map<const CGHeroInstance *, HeroRole> heroes
 			logAi->trace("Select next actor");
 		} while(storage->selectNextActor());

+		boost::this_thread::interruption_point();
+
 		if(storage->calculateHeroChainFinal())
 		{
 			boost::this_thread::interruption_point();
--- a/2
+++ b/2
@ -80,7 +80,7 @@ Dmitry Orlov, <shubus.corporation@gmail.com>
   * special buildings support in fan towns, new features and bug fixes

 Andrey Cherkas aka nordsoft, <nordsoft@yahoo.com>
-   * new terrain support, random map generator features and various bug fixes
+   * new terrain support, rmg features, map editor, multiplayer improvements, bug fixes

 Andrey Filipenkov aka kambala-decapitator, <decapitator@ukr.net>
   * iOS support, macOS improvements, various bug fixes
--- a/CI/get_package_name.sh
+++ b/CI/get_package_name.sh
@ -27,16 +27,27 @@ fi

 VCMI_PACKAGE_FILE_NAME="${TMP_JOBID}-vcmi"
 VCMI_PACKAGE_NAME_SUFFIX=""
+VCMI_PACKAGE_GITVERSION="ON"
 if [ -z "$TMP_PRID" ] || [ "$TMP_PRID" == "false" ];
 then
 	branch_name=$(echo "$TMP_BRANCH" | sed 's/[^[:alnum:]]\+/_/g')
 	VCMI_PACKAGE_FILE_NAME="${VCMI_PACKAGE_FILE_NAME}-branch-${branch_name}-${TMP_COMMIT}"
-	VCMI_PACKAGE_NAME_SUFFIX="branch ${branch_name}"
+	if [ "${branch_name}" != "master" ];
+	then
+		VCMI_PACKAGE_NAME_SUFFIX="branch ${branch_name}"
+	else
+		VCMI_PACKAGE_GITVERSION="OFF"
+	fi
 else
 	VCMI_PACKAGE_FILE_NAME="${VCMI_PACKAGE_FILE_NAME}-PR-${TMP_PRID}-${TMP_COMMIT}"
 	VCMI_PACKAGE_NAME_SUFFIX="PR ${TMP_PRID}"
 fi
-VCMI_PACKAGE_NAME_SUFFIX="(${VCMI_PACKAGE_NAME_SUFFIX})"
+
+if [ "${VCMI_PACKAGE_NAME_SUFFIX}" != "" ];
+then
+	VCMI_PACKAGE_NAME_SUFFIX="(${VCMI_PACKAGE_NAME_SUFFIX})"
+fi

 export VCMI_PACKAGE_FILE_NAME
 export VCMI_PACKAGE_NAME_SUFFIX
+export VCMI_PACKAGE_GITVERSION
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@ -48,6 +48,7 @@ option(ENABLE_ERM "Enable compilation of ERM scripting module" OFF)
 option(ENABLE_LUA "Enable compilation of LUA scripting module" OFF)
 option(ENABLE_LAUNCHER "Enable compilation of launcher" ON)
 option(ENABLE_EDITOR "Enable compilation of map editor" ON)
+option(ENABLE_NULLKILLER_AI "Enable compilation of Nullkiller AI library" ON)
 if(APPLE_IOS)
 	set(BUNDLE_IDENTIFIER_PREFIX "" CACHE STRING "Bundle identifier prefix")
 	set(APP_DISPLAY_NAME "VCMI" CACHE STRING "App name on the home screen")
@ -323,7 +324,6 @@ find_package(SDL2_ttf REQUIRED)
 if(TARGET SDL2_ttf::SDL2_ttf)
 	add_library(SDL2::TTF ALIAS SDL2_ttf::SDL2_ttf)
 endif()
-find_package(TBB REQUIRED)

 if(ENABLE_LAUNCHER OR ENABLE_EDITOR)
 	# Widgets finds its own dependencies (QtGui and QtCore).
@ -331,6 +331,10 @@ if(ENABLE_LAUNCHER OR ENABLE_EDITOR)
 	find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS Widgets Network)
 endif()

+if(ENABLE_NULLKILLER_AI)
+	find_package(TBB REQUIRED)
+endif()
+
 if(ENABLE_LUA)
 	find_package(luajit)
 	# MXE paths hardcoded for current dependencies pack - tried and could not make it work another way
@ -393,26 +397,34 @@ else()
 	include(GNUInstallDirs)

 	if(ENABLE_MONOLITHIC_INSTALL)
-		set(CMAKE_INSTALL_RPATH "$ORIGIN/")
 		set(BIN_DIR "." CACHE STRING "Where to install binaries")
 		set(LIB_DIR "." CACHE STRING "Where to install main library")
 		set(DATA_DIR "." CACHE STRING "Where to install data files")
+
+		# following constants only used for platforms using XDG (Linux, BSD, etc)
+		add_definitions(-DM_DATA_DIR="${DATA_DIR}")
+		add_definitions(-DM_BIN_DIR="${BIN_DIR}")
+		add_definitions(-DM_LIB_DIR="${LIB_DIR}")
+
+		set(CMAKE_INSTALL_RPATH "$ORIGIN/")
 	else()
 		if(NOT BIN_DIR)
-			set(BIN_DIR "bin" CACHE STRING "Where to install binaries")
+			set(BIN_DIR "${CMAKE_INSTALL_BINDIR}" CACHE STRING "Where to install binaries")
 		endif()
 		if(NOT LIB_DIR)
 			set(LIB_DIR "${CMAKE_INSTALL_LIBDIR}/vcmi" CACHE STRING "Where to install main library")
 		endif()
 		if(NOT DATA_DIR)
-			set(DATA_DIR "share/vcmi" CACHE STRING "Where to install data files")
+			set(DATA_DIR "${CMAKE_INSTALL_DATAROOTDIR}/vcmi" CACHE STRING "Where to install data files")
 		endif()
-	endif()

-	# following constants only used for platforms using XDG (Linux, BSD, etc)
-	add_definitions(-DM_DATA_DIR="${CMAKE_INSTALL_PREFIX}/${DATA_DIR}")
-	add_definitions(-DM_BIN_DIR="${CMAKE_INSTALL_PREFIX}/${BIN_DIR}")
-	add_definitions(-DM_LIB_DIR="${CMAKE_INSTALL_PREFIX}/${LIB_DIR}")
+		# following constants only used for platforms using XDG (Linux, BSD, etc)
+		add_definitions(-DM_DATA_DIR="${CMAKE_INSTALL_PREFIX}/${DATA_DIR}")
+		add_definitions(-DM_BIN_DIR="${CMAKE_INSTALL_PREFIX}/${BIN_DIR}")
+		add_definitions(-DM_LIB_DIR="${CMAKE_INSTALL_PREFIX}/${LIB_DIR}")
+
+		set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/${LIB_DIR}")
+	endif()
 endif()

 # iOS has flat libs directory structure
--- a/CMakePresets.json
+++ b/CMakePresets.json
@ -23,7 +23,8 @@
                "PACKAGE_FILE_NAME" : "$env{VCMI_PACKAGE_FILE_NAME}",
                "PACKAGE_NAME_SUFFIX" : "$env{VCMI_PACKAGE_NAME_SUFFIX}",
                "CMAKE_BUILD_TYPE": "RelWithDebInfo",
-                "ENABLE_TEST": "OFF"
+                "ENABLE_TEST": "OFF",
+                "ENABLE_GITVERSION": "$env{VCMI_PACKAGE_GITVERSION}"
            }
        },
        {
--- a/92
+++ b/92
@ -1,21 +1,69 @@
-1.0.0 -> 1.1.0
-
-GENERAL:
-* Mods and their versions and serialized into save files. Game checks mod compatibility before loading
-* Logs are stored in system default logs directory
-* LUA/ERM libs are not compiled by default
-* FFMpeg dependency is optional now
-
-MODS:
-* Supported rewardable objects customization
-* Battleground obstacles are extendable now with VLC mechanism
-* Introduced "compatibility" section into mods settings
-
-LAUNCHER:
-* Fixed problem with duplicated mods in the list
-* Launcher shows compatible mods only
-* Uninstall button was moved to the left of layout
-
+1.0.0 -> 1.1.0
+
+GENERAL:
+* iOS is supported
+* Mods and their versions and serialized into save files. Game checks mod compatibility before loading
+* Logs are stored in system default logs directory
+* LUA/ERM libs are not compiled by default
+* FFMpeg dependency is optional now
+* Conan package manager is supported for MacOS and iOS
+
+MULTIPLAYER:
+* Map is passed over network, so different platforms are compatible with each other
+* Server self-killing is more robust
+* Unlock in-game console while opponent's turn
+* Host can control game session by using console commands
+* Control over player is transferred to AI if client escaped the game
+* Reconnection mode for crashed client processes
+* Playing online is available using proxy server
+
+ADVENTURE MAP:
+* Fix for digging while opponent's turn
+* Supported right click for quick recruit window
+* Fixed problem with quests are requiring identical artefacts
+* Bulk move and swap artifacts
+* Pause & resume for towns and terrains music themes
+* Feature to assemble/disassemble artefacts in backpack
+* Clickable status bar to send messages
+* Heroes no longer have chance to receive forbidden skill on leveling up
+* Fixed visibility of newly recruited heroes near town 
+* Fixed missing artifact slot in Artifact Merchant window
+
+BATTLES:
+* Fix healing/regeneration behaviour and effect
+* Fix crashes related to auto battle
+* Implemented ray projectiles for shooters
+* Introduced default tower shooter icons
+* Towers destroyed during battle will no longer be listed as casualties
+
+AI:
+* BattleAI: Target prioritizing is now based on damage difference instead of health difference
+* Nullkiller AI can retreat and surrender
+* Nullkiller AI doesn't visit allied dwellings anymore
+* Fixed a few freezes in Nullkiller AI
+
+RANDOM MAP GENERATOR:
+* Speedup generation of random maps
+* Necromancy cannot be learned in Witch Hut on random maps
+
+MODS:
+* Supported rewardable objects customization
+* Battleground obstacles are extendable now with VLC mechanism
+* Introduced "compatibility" section into mods settings
+* Fixed bonus system for custom advmap spells
+* Supported customisable town entrance placement
+* Fixed validation of mods with new adventure map objects
+
+LAUNCHER:
+* Fixed problem with duplicated mods in the list
+* Launcher shows compatible mods only
+* Uninstall button was moved to the left of layout
+* Unsupported resolutions are not shown
+* Lobby for online gameplay is implemented
+
+MAP EDITOR:
+* Basic version of Qt-based map editor
+
 0.99 -> 1.0.0

 GENERAL:
@ -98,10 +146,10 @@ BATTLES:

 ADVENTURE MAP:
 * Added buttons and keyboard shortcuts to quickly exchange army and artifacts between heroes
-* Fix: Captured town should not be duplicated on the UI
-
-LAUNCHER:
-* Implemented notifications about updates
+* Fix: Captured town should not be duplicated on the UI
+
+LAUNCHER:
+* Implemented notifications about updates
 * Supported redirection links for downloading mods

 0.98 -> 0.99
--- a/Mods/vcmi/config/vcmi/towerCreature.json
+++ b/Mods/vcmi/config/vcmi/towerCreature.json
@ -0,0 +1,10 @@
+{
+	"core:arrowTower" :
+	{
+		"graphics" :
+		{
+			"iconSmall" : "vcmi/creatureIcons/towerSmall",
+			"iconLarge" : "vcmi/creatureIcons/towerLarge",
+		}
+	}
+}
--- a/Mods/vcmi/config/vcmi/towerFactions.json
+++ b/Mods/vcmi/config/vcmi/towerFactions.json
@ -0,0 +1,101 @@
+{
+	"core:castle" :
+	{
+		"town" :
+		{
+			"siege" :
+			{
+				"towerIconSmall" : "vcmi/creatureIcons/towerSmall",
+				"towerIconLarge" : "vcmi/creatureIcons/towerLarge",
+			}
+		}
+	},
+	"core:rampart" :
+	{
+		"town" :
+		{
+			"siege" :
+			{
+				"towerIconSmall" : "vcmi/creatureIcons/towerSmall",
+				"towerIconLarge" : "vcmi/creatureIcons/towerLarge",
+			}
+		}
+	},
+	"core:tower" :
+	{
+		"town" :
+		{
+			"siege" :
+			{
+				"towerIconSmall" : "vcmi/creatureIcons/towerSmall",
+				"towerIconLarge" : "vcmi/creatureIcons/towerLarge",
+			}
+		}
+	},
+	"core:inferno" :
+	{
+		"town" :
+		{
+			"siege" :
+			{
+				"towerIconSmall" : "vcmi/creatureIcons/towerSmall",
+				"towerIconLarge" : "vcmi/creatureIcons/towerLarge",
+			}
+		}
+	},
+	"core:necropolis" :
+	{
+		"town" :
+		{
+			"siege" :
+			{
+				"towerIconSmall" : "vcmi/creatureIcons/towerSmall",
+				"towerIconLarge" : "vcmi/creatureIcons/towerLarge",
+			}
+		}
+	},
+	"core:dungeon" :
+	{
+		"town" :
+		{
+			"siege" :
+			{
+				"towerIconSmall" : "vcmi/creatureIcons/towerSmall",
+				"towerIconLarge" : "vcmi/creatureIcons/towerLarge",
+			}
+		}
+	},
+	"core:stronghold" :
+	{
+		"town" :
+		{
+			"siege" :
+			{
+				"towerIconSmall" : "vcmi/creatureIcons/towerSmall",
+				"towerIconLarge" : "vcmi/creatureIcons/towerLarge",
+			}
+		}
+	},
+	"core:fortress" :
+	{
+		"town" :
+		{
+			"siege" :
+			{
+				"towerIconSmall" : "vcmi/creatureIcons/towerSmall",
+				"towerIconLarge" : "vcmi/creatureIcons/towerLarge",
+			}
+		}
+	},
+	"core:conflux" :
+	{
+		"town" :
+		{
+			"siege" :
+			{
+				"towerIconSmall" : "vcmi/creatureIcons/towerSmall",
+				"towerIconLarge" : "vcmi/creatureIcons/towerLarge",
+			}
+		}
+	}
+}
--- a/Mods/vcmi/mod.json
+++ b/Mods/vcmi/mod.json
@ -2,13 +2,20 @@
 	"name" : "VCMI essential files",
 	"description" : "Essential files required for VCMI to run correctly",

-	"version" : "1.0",
+	"version" : "1.1",
 	"author" : "VCMI Team",
 	"contact" : "http://forum.vcmi.eu/index.php",
 	"modType" : "Graphical",
+	
+	"factions" : [ "config/vcmi/towerFactions" ],
+	"creatures" : [ "config/vcmi/towerCreature" ],

 	"filesystem":
 	{
+		"CONFIG/" :
+		[
+			{"type" : "dir",  "path" : "/Config"}
+		],
 		"DATA/" :
 		[
 			{"type" : "dir",  "path" : "/Data"}
--- a/client/CMT.cpp
+++ b/client/CMT.cpp
@ -721,7 +721,7 @@ void processCommand(const std::string &message)
 				{
 					const JsonNode & object = nameAndObject.second;

-					std::string name = CModHandler::normalizeIdentifier(object.meta, "core", nameAndObject.first);
+					std::string name = CModHandler::normalizeIdentifier(object.meta, CModHandler::scopeBuiltin(), nameAndObject.first);

 					boost::algorithm::replace_all(name,":","_");

@ -1085,7 +1085,6 @@ static bool recreateWindow(int w, int h, int bpp, bool fullscreen, int displayIn
 	if(!checkVideoMode(displayIndex, w, h))
 	{
 		logGlobal->error("Error: SDL says that %dx%d resolution is not available!", w, h);
-		return false;
 	}
 #endif

--- a/client/CMakeLists.txt
+++ b/client/CMakeLists.txt
@ -199,7 +199,10 @@ else()
 	add_executable(vcmiclient WIN32 ${client_SRCS} ${client_HEADERS} ${client_ICON})
 endif(ENABLE_DEBUG_CONSOLE)

-add_dependencies(vcmiclient vcmiserver BattleAI StupidAI VCAI Nullkiller)
+add_dependencies(vcmiclient vcmiserver BattleAI StupidAI VCAI)
+if(ENABLE_NULLKILLER_AI)
+	add_dependencies(vcmiclient Nullkiller)
+endif()
 if(APPLE_IOS)
 	if(ENABLE_ERM)
 		add_dependencies(vcmiclient vcmiERM)
--- a/client/Graphics.cpp
+++ b/client/Graphics.cpp
@ -100,7 +100,7 @@ void Graphics::loadPaletteAndColors()
 void Graphics::initializeBattleGraphics()
 {
 	auto allConfigs = VLC->modh->getActiveMods();
-	allConfigs.insert(allConfigs.begin(), "core");
+	allConfigs.insert(allConfigs.begin(), CModHandler::scopeBuiltin());
 	for(auto & mod : allConfigs)
 	{
 		if(!CResourceHandler::get(mod)->existsResource(ResourceID("config/battles_graphics.json")))
--- a/client/battle/BattleInterfaceClasses.cpp
+++ b/client/battle/BattleInterfaceClasses.cpp
@ -490,7 +490,11 @@ BattleResultWindow::BattleResultWindow(const BattleResult & br, CPlayerInterface
 			int yPos = 344 + step * 97;
 			for(auto & elem : br.casualties[step])
 			{
-				icons.push_back(std::make_shared<CAnimImage>("CPRSMALL", CGI->creatures()->getByIndex(elem.first)->getIconIndex(), 0, xPos, yPos));
+				auto creature = CGI->creatures()->getByIndex(elem.first);
+				if (creature->getId() == CreatureID::ARROW_TOWERS )
+					continue; // do not show destroyed towers in battle results
+
+				icons.push_back(std::make_shared<CAnimImage>("CPRSMALL", creature->getIconIndex(), 0, xPos, yPos));
 				std::ostringstream amount;
 				amount<<elem.second;
 				labels.push_back(std::make_shared<CLabel>(xPos + 16, yPos + 42, FONT_SMALL, ETextAlignment::CENTER, Colors::WHITE, amount.str()));
--- a/client/gui/CCursorHandler.cpp
+++ b/client/gui/CCursorHandler.cpp
@ -67,6 +67,8 @@ void CCursorHandler::initCursor()

 void CCursorHandler::changeGraphic(ECursor::ECursorTypes type, int index)
 {
+	assert(dndObject == nullptr);
+
 	if(type != this->type)
 	{
 		this->type = type;
--- a/client/widgets/CArtifactHolder.cpp
+++ b/client/widgets/CArtifactHolder.cpp
@ -254,6 +254,22 @@ void CHeroArtPlace::clickRight(tribool down, bool previousState)
 	}
 }

+void CArtifactsOfHero::activate()
+{
+	if (commonInfo->src.AOH == this && commonInfo->src.art)
+		CCS->curh->dragAndDropCursor(make_unique<CAnimImage>("artifact", commonInfo->src.art->artType->getIconIndex()));
+
+	CIntObject::activate();
+}
+
+void CArtifactsOfHero::deactivate()
+{
+	if (commonInfo->src.AOH == this && commonInfo->src.art)
+		CCS->curh->dragAndDropCursor(nullptr);
+
+	CIntObject::deactivate();
+}
+
 /**
 * Selects artifact slot so that the containing artifact looks like it's picked up.
 */
@ -675,10 +691,8 @@ void CArtifactsOfHero::updateParentWindow()

 		if(!updateState)
 		{
-			cew->deactivate();
 			cew->updateWidgets();
 			cew->redraw();
-			cew->activate();
 		}
 	}
 }
--- a/client/widgets/CArtifactHolder.h
+++ b/client/widgets/CArtifactHolder.h
@ -148,6 +148,9 @@ public:
 	void dispose(); //free resources not needed after closing windows and reset state
 	void scrollBackpack(int dir); //dir==-1 => to left; dir==1 => to right

+	void activate() override;
+	void deactivate() override;
+
 	void safeRedraw();
 	void markPossibleSlots(const CArtifactInstance* art);
 	void unmarkSlots(bool withRedraw = true); //unmarks slots in all visible AOHs
--- a/client/windows/CTradeWindow.cpp
+++ b/client/windows/CTradeWindow.cpp
@ -676,6 +676,10 @@ CMarketplaceWindow::CMarketplaceWindow(const IMarket * Market, const CGHeroInsta
 			break;
 		case EMarketMode::ARTIFACT_RESOURCE:
 			title = (*CGI->townh)[market->o->subID]->town->buildings[BuildingID::ARTIFACT_MERCHANT]->Name();
+
+			// create image that copies part of background containing slot MISC_1 into position of slot MISC_5
+			// this is workaround for bug in H3 files where this slot for ragdoll on this screen is missing
+			images.push_back(std::make_shared<CPicture>(background->bg, Rect(20, 187, 47, 47), 18, 339 ));
 			sliderNeeded = false;
 			break;
 		default:
--- a/client/windows/CTradeWindow.h
+++ b/client/windows/CTradeWindow.h
@ -21,6 +21,7 @@ VCMI_LIB_NAMESPACE_END

 class CSlider;
 class CTextBox;
+class CPicture;
 class CGStatusBar;

 class CTradeWindow : public CWindowObject, public CWindowWithArtifacts //base for markets and altar of sacrifice
@ -108,6 +109,7 @@ public:
 protected:
 	std::shared_ptr<CGStatusBar> statusBar;
 	std::vector<std::shared_ptr<CLabel>> labels;
+	std::vector<std::shared_ptr<CPicture>> images;
 	std::vector<std::shared_ptr<CButton>> buttons;
 	std::vector<std::shared_ptr<CTextBox>> texts;
 };
--- a/config/creatures/special.json
+++ b/config/creatures/special.json
@ -123,8 +123,6 @@
 		},
 		"graphics" :
 		{
-			"iconSmall" : "vcmi/creatureIcons/towerSmall",
-			"iconLarge" : "vcmi/creatureIcons/towerLarge",
 			"animation": "CLCBOW.DEF" // needed to pass validation, never used
 		},
 		"sound": {}
--- a/config/factions/castle.json
+++ b/config/factions/castle.json
@ -203,8 +203,6 @@
 			"siege" :
 			{
 				"shooter" : "archer",
-				"towerIconSmall" : "vcmi/creatureIcons/towerSmall",
-				"towerIconLarge" : "vcmi/creatureIcons/towerLarge",
 				"imagePrefix" : "SGCS",
 				"gate" :
 				{
--- a/config/factions/conflux.json
+++ b/config/factions/conflux.json
@ -210,8 +210,6 @@
 			"siege" :
 			{
 				"shooter" : "stormElemental",
-				"towerIconSmall" : "vcmi/creatureIcons/towerSmall",
-				"towerIconLarge" : "vcmi/creatureIcons/towerLarge",
 				"imagePrefix" : "SGEL",
 				"gate" :
 				{
--- a/config/factions/dungeon.json
+++ b/config/factions/dungeon.json
@ -204,8 +204,6 @@
 			"siege" :
 			{
 				"shooter" : "medusa",
-				"towerIconSmall" : "vcmi/creatureIcons/towerSmall",
-				"towerIconLarge" : "vcmi/creatureIcons/towerLarge",
 				"imagePrefix" : "SGDN",
 				"gate" :
 				{
--- a/config/factions/fortress.json
+++ b/config/factions/fortress.json
@ -209,8 +209,6 @@
 			"siege" :
 			{
 				"shooter" : "lizardman",
-				"towerIconSmall" : "vcmi/creatureIcons/towerSmall",
-				"towerIconLarge" : "vcmi/creatureIcons/towerLarge",
 				"imagePrefix" : "SGFR",
 				"gate" :
 				{
--- a/config/factions/inferno.json
+++ b/config/factions/inferno.json
@ -204,8 +204,6 @@
 			"siege" :
 			{
 				"shooter" : "gog",
-				"towerIconSmall" : "vcmi/creatureIcons/towerSmall",
-				"towerIconLarge" : "vcmi/creatureIcons/towerLarge",
 				"imagePrefix" : "SGIN",
 				"gate" :
 				{
--- a/config/factions/necropolis.json
+++ b/config/factions/necropolis.json
@ -214,8 +214,6 @@
 			"siege" :
 			{
 				"shooter" : "lich",
-				"towerIconSmall" : "vcmi/creatureIcons/towerSmall",
-				"towerIconLarge" : "vcmi/creatureIcons/towerLarge",
 				"imagePrefix" : "SGNC",
 				"gate" :
 				{
--- a/config/factions/rampart.json
+++ b/config/factions/rampart.json
@ -211,8 +211,6 @@
 			"siege" :
 			{
 				"shooter" : "woodElf",
-				"towerIconSmall" : "vcmi/creatureIcons/towerSmall",
-				"towerIconLarge" : "vcmi/creatureIcons/towerLarge",
 				"imagePrefix" : "SGRM",
 				"gate" :
 				{
--- a/config/factions/stronghold.json
+++ b/config/factions/stronghold.json
@ -203,8 +203,6 @@
 			{
 				"shooter" : "orc",
 				"imagePrefix" : "SGST",
-				"towerIconSmall" : "vcmi/creatureIcons/towerSmall",
-				"towerIconLarge" : "vcmi/creatureIcons/towerLarge",
 				"gate" :
 				{
 					"arch" : { "x" : 478, "y" : 235 },
--- a/config/factions/tower.json
+++ b/config/factions/tower.json
@ -202,8 +202,6 @@
 			"siege" :
 			{
 				"shooter" : "mage",
-				"towerIconSmall" : "vcmi/creatureIcons/towerSmall",
-				"towerIconLarge" : "vcmi/creatureIcons/towerLarge",
 				"imagePrefix" : "SGTW",
 				"gate" :
 				{
--- a/config/schemas/mod.json
+++ b/config/schemas/mod.json
@ -56,6 +56,23 @@
 			"description": "List of mods that can't be enabled in the same time as this one",
 			"items": { "type":"string" }
 		},
+		"compatibility" : {
+			"type":"object",
+			"description": "Supported versions of vcmi engine",
+			"additionalProperties" : false,
+			"properties" : {
+				"min" : {
+					"type" : "string",
+					"description" : "minimal compatible vcmi engine version in a format major.minor.patch. When specified, earlier versions won't be supported"
+					//"pattern" : "^\\d+\\.\\d+\\.\\d+$" // Not implemented in schema support
+				},
+				"max" : {
+					"type" : "string",
+					"description" : "maximum compatible vcmi engine version in a format major.minor.patch. When specified, later versions won't be supported"
+					//"pattern" : "^\\d+\\.\\d+\\.\\d+$" // Not implemented in schema support
+				}
+			}
+		},

 		"keepDisabled" : {
 			"type":"boolean",
@ -118,6 +135,12 @@
 			"description": "List of configuration files for battlefields",
 			"items": { "type":"string", "format" : "textFile" }

+		},
+		"obstacles":{
+			"type":"array",
+			"description": "List of configuration files for obstacles",
+			"items": { "type":"string", "format" : "textFile" }
+
 		},

 		"changelog" : {
--- a/debian/changelog
+++ b/debian/changelog
@ -1,3 +1,15 @@
+vcmi (1.2.0) jammy; urgency=medium
+
+  * New upstream release
+
+ -- Ivan Savenko <saven.ivan@gmail.com>  Fri, 23 Dec 2022 16:00:00 +0200
+ 
+vcmi (1.1.0) jammy; urgency=medium
+
+  * New upstream release
+
+ -- Ivan Savenko <saven.ivan@gmail.com>  Fri, 23 Dec 2022 12:00:00 +0200
+ 
 vcmi (1.0.0) jammy; urgency=medium

  * New upstream release
--- a/launcher/eu.vcmi.VCMI.metainfo.xml
+++ b/launcher/eu.vcmi.VCMI.metainfo.xml
@ -38,6 +38,8 @@
 	<url type="bugtracker">https://github.com/vcmi/vcmi/issues</url>
 	<url type="faq">https://vcmi.eu/faq/</url>
 	<releases>
+		<release version="1.2.0" date="2022-12-24" type="development" />
+		<release version="1.1.0" date="2022-12-23" />
 		<release version="1.0.0" date="2022-09-11" />
 		<release version="0.99" date="2016-11-01" />
 	</releases>
--- a/launcher/modManager/cmodlist.cpp
+++ b/launcher/modManager/cmodlist.cpp
@ -31,7 +31,7 @@ bool isCompatible(const QString & verMin, const QString & verMax)
 		if(ver.segmentCount() < maxSections)
 		{
 			auto segments = ver.segments();
-			for(int i = segments.size() - 1; i < maxSections; ++i)
+			for(int i = segments.size(); i < maxSections; ++i)
 				segments.append(0);
 			ver = QVersionNumber(segments);
 		}
--- a/lib/CArtHandler.cpp
+++ b/lib/CArtHandler.cpp
@ -280,7 +280,7 @@ std::vector<JsonNode> CArtHandler::loadLegacyData(size_t dataSize)

 void CArtHandler::loadObject(std::string scope, std::string name, const JsonNode & data)
 {
-	auto object = loadFromJson(scope, data, normalizeIdentifier(scope, "core", name), objects.size());
+	auto object = loadFromJson(scope, data, normalizeIdentifier(scope, CModHandler::scopeBuiltin(), name), objects.size());

 	object->iconIndex = object->getIndex() + 5;

@ -291,7 +291,7 @@ void CArtHandler::loadObject(std::string scope, std::string name, const JsonNode

 void CArtHandler::loadObject(std::string scope, std::string name, const JsonNode & data, size_t index)
 {
-	auto object = loadFromJson(scope, data, normalizeIdentifier(scope, "core", name), index);
+	auto object = loadFromJson(scope, data, normalizeIdentifier(scope, CModHandler::scopeBuiltin(), name), index);

 	object->iconIndex = object->getIndex();

@ -861,8 +861,6 @@ void CArtifactInstance::removeFrom(ArtifactLocation al)
 	al.getHolderArtSet()->eraseArtSlot(al.slot);
 	if(!ArtifactUtils::isSlotBackpack(al.slot))
 		al.getHolderNode()->detachFrom(*this);
-
-	//TODO delete me?
 }

 bool CArtifactInstance::canBeDisassembled() const
@ -1062,7 +1060,9 @@ void CCombinedArtifactInstance::createConstituents()

 void CCombinedArtifactInstance::addAsConstituent(CArtifactInstance *art, ArtifactPosition slot)
 {
-	assert(vstd::contains(*artType->constituents, art->artType.get()));
+	assert(vstd::contains_if(*artType->constituents, [=](const CArtifact * constituent){
+		return constituent->id == art->artType->id;
+	}));
 	assert(art->getParentNodes().size() == 1  &&  art->getParentNodes().front() == art->artType);
 	constituentsInfo.push_back(ConstituentInfo(art, slot));
 	attachTo(*art);
@ -1354,11 +1354,16 @@ bool CArtifactSet::isPositionFree(ArtifactPosition pos, bool onlyLockCheck) cons
 ArtSlotInfo & CArtifactSet::retrieveNewArtSlot(ArtifactPosition slot)
 {
 	assert(!vstd::contains(artifactsWorn, slot));
-	ArtSlotInfo &ret = !ArtifactUtils::isSlotBackpack(slot)
-		? artifactsWorn[slot]
-		: *artifactsInBackpack.insert(artifactsInBackpack.begin() + (slot - GameConstants::BACKPACK_START), ArtSlotInfo());

-	return ret;
+	if (!ArtifactUtils::isSlotBackpack(slot))
+		return artifactsWorn[slot];
+
+	ArtSlotInfo newSlot;
+	size_t index  = slot - GameConstants::BACKPACK_START;
+	auto position = artifactsInBackpack.begin() + index;
+	auto inserted = artifactsInBackpack.insert(position, newSlot);
+
+	return *inserted;
 }

 void CArtifactSet::setNewArtSlot(ArtifactPosition slot, CArtifactInstance *art, bool locked)
@ -1372,9 +1377,10 @@ void CArtifactSet::eraseArtSlot(ArtifactPosition slot)
 {
 	if(ArtifactUtils::isSlotBackpack(slot))
 	{
-		assert(artifactsInBackpack.begin() + slot < artifactsInBackpack.end());
-		slot = ArtifactPosition(slot - GameConstants::BACKPACK_START);
-		artifactsInBackpack.erase(artifactsInBackpack.begin() + slot);
+		auto backpackSlot = ArtifactPosition(slot - GameConstants::BACKPACK_START);
+
+		assert(artifactsInBackpack.begin() + backpackSlot < artifactsInBackpack.end());
+		artifactsInBackpack.erase(artifactsInBackpack.begin() + backpackSlot);
 	}
 	else
 	{
@ -1547,16 +1553,18 @@ DLL_LINKAGE ArtifactPosition ArtifactUtils::getArtifactDstPosition(	const CArtif

 DLL_LINKAGE const std::vector<ArtifactPosition::EArtifactPosition> & ArtifactUtils::unmovableSlots()
 {
-	return
+	static const std::vector<ArtifactPosition::EArtifactPosition> positions =
 	{
 		ArtifactPosition::SPELLBOOK,
 		ArtifactPosition::MACH4
 	};
+
+	return positions;
 }

 DLL_LINKAGE const std::vector<ArtifactPosition::EArtifactPosition> & ArtifactUtils::constituentWornSlots()
 {
-	return
+	static const std::vector<ArtifactPosition::EArtifactPosition> positions =
 	{
 		ArtifactPosition::HEAD,
 		ArtifactPosition::SHOULDERS,
@ -1573,6 +1581,8 @@ DLL_LINKAGE const std::vector<ArtifactPosition::EArtifactPosition> & ArtifactUti
 		ArtifactPosition::MISC4,
 		ArtifactPosition::MISC5,
 	};
+
+	return positions;
 }

 DLL_LINKAGE bool ArtifactUtils::isArtRemovable(const std::pair<ArtifactPosition, ArtSlotInfo> & slot)
--- a/lib/CCreatureHandler.cpp
+++ b/lib/CCreatureHandler.cpp
@ -425,7 +425,7 @@ const CCreature * CCreatureHandler::getCreature(const std::string & scope, const
 void CCreatureHandler::loadCommanders()
 {
 	JsonNode data(ResourceID("config/commanders.json"));
-	data.setMeta("core"); // assume that commanders are in core mod (for proper bonuses resolution)
+	data.setMeta(CModHandler::scopeBuiltin()); // assume that commanders are in core mod (for proper bonuses resolution)

 	const JsonNode & config = data; // switch to const data accessors

--- a/lib/CCreatureSet.cpp
+++ b/lib/CCreatureSet.cpp
@ -1053,7 +1053,7 @@ void CStackBasicDescriptor::serializeJson(JsonSerializeFormat & handler)
 		std::string typeName("");
 		handler.serializeString("type", typeName);
 		if(!typeName.empty())
-			setType(VLC->creh->getCreature("core", typeName));
+			setType(VLC->creh->getCreature(CModHandler::scopeMap(), typeName));
 	}
 }

--- a/lib/CGameState.cpp
+++ b/lib/CGameState.cpp
@ -760,6 +760,7 @@ void CGameState::init(const IMapService * mapService, StartInfo * si, bool allow
 	initHeroes();
 	initStartingBonus();
 	initTowns();
+	placeHeroesInTowns();
 	initMapObjects();
 	buildBonusSystemTree();
 	initVisitingAndGarrisonedHeroes();
@ -1363,7 +1364,8 @@ void CGameState::placeStartingHeroes()
 			{
 				if(auto campaignBonus = scenarioOps->campState->getBonusForCurrentMap())
 				{
-					if(campaignBonus->type == CScenarioTravel::STravelBonus::HERO && playerColor == PlayerColor(campaignBonus->info1)) continue;
+					if(campaignBonus->type == CScenarioTravel::STravelBonus::HERO && playerColor == PlayerColor(campaignBonus->info1))
+						continue;
 				}
 			}

@ -1861,6 +1863,37 @@ void CGameState::initMapObjects()
 	map->calculateGuardingGreaturePositions(); //calculate once again when all the guards are placed and initialized
 }

+void CGameState::placeHeroesInTowns()
+{
+	for(auto k=players.begin(); k!=players.end(); ++k)
+	{
+		if(k->first==PlayerColor::NEUTRAL)
+			continue;
+
+		for(CGHeroInstance *h : k->second.heroes)
+		{
+			for(CGTownInstance *t : k->second.towns)
+			{
+				bool heroOnTownBlockableTile = t->blockingAt(h->visitablePos().x, h->visitablePos().y);
+
+				// current hero position is at one of blocking tiles of current town
+				// assume that this hero should be visiting the town (H3M format quirk) and move hero to correct position
+				if (heroOnTownBlockableTile)
+				{
+					int3 townVisitablePos = t->visitablePos();
+					int3 correctedPos = townVisitablePos + h->getVisitableOffset();
+
+					map->removeBlockVisTiles(h);
+					h->pos = correctedPos;
+					map->addBlockVisTiles(h);
+
+					assert(t->visitableAt(h->visitablePos().x, h->visitablePos().y));
+				}
+			}
+		}
+	}
+}
+
 void CGameState::initVisitingAndGarrisonedHeroes()
 {
 	for(auto k=players.begin(); k!=players.end(); ++k)
@ -1873,17 +1906,10 @@ void CGameState::initVisitingAndGarrisonedHeroes()
 		{
 			for(CGTownInstance *t : k->second.towns)
 			{
-				int3 vistile = t->visitablePos(); vistile.x++; //tile next to the entrance
-				if(vistile == h->pos || h->pos==t->visitablePos())
+				if (t->visitableAt(h->visitablePos().x, h->visitablePos().y))
 				{
+					assert(t->visitingHero == nullptr);
 					t->setVisitingHero(h);
-					if(h->pos == t->pos) //visiting hero placed in the editor has same pos as the town - we need to correct it
-					{
-						map->removeBlockVisTiles(h);
-						h->pos.x -= 1;
-						map->addBlockVisTiles(h);
-					}
-					break;
 				}
 			}
 		}
--- a/lib/CGameState.h
+++ b/lib/CGameState.h
@ -269,6 +269,7 @@ private:
 	void placeStartingHero(PlayerColor playerColor, HeroTypeID heroTypeId, int3 townPos);
 	void initStartingResources();
 	void initHeroes();
+	void placeHeroesInTowns();
 	void giveCampaignBonusToHero(CGHeroInstance * hero);
 	void initFogOfWar();
 	void initStartingBonus();
--- a/lib/CHeroHandler.cpp
+++ b/lib/CHeroHandler.cpp
@ -348,7 +348,7 @@ CHeroHandler::CHeroHandler()
 	loadTerrains();
 	for(const auto & terrain : VLC->terrainTypeHandler->terrains())
 	{
-		VLC->modh->identifiers.registerObject("core", "terrain", terrain.name, terrain.id);
+		VLC->modh->identifiers.registerObject(CModHandler::scopeBuiltin(), "terrain", terrain.name, terrain.id);
 	}
 	loadBallistics();
 	loadExperience();
@ -868,7 +868,7 @@ std::vector<JsonNode> CHeroHandler::loadLegacyData(size_t dataSize)
 void CHeroHandler::loadObject(std::string scope, std::string name, const JsonNode & data)
 {
 	size_t index = objects.size();
-	auto object = loadFromJson(scope, data, normalizeIdentifier(scope, "core", name), index);
+	auto object = loadFromJson(scope, data, normalizeIdentifier(scope, CModHandler::scopeBuiltin(), name), index);
 	object->imageIndex = (si32)index + GameConstants::HERO_PORTRAIT_SHIFT; // 2 special frames + some extra portraits

 	objects.push_back(object);
@ -878,7 +878,7 @@ void CHeroHandler::loadObject(std::string scope, std::string name, const JsonNod

 void CHeroHandler::loadObject(std::string scope, std::string name, const JsonNode & data, size_t index)
 {
-	auto object = loadFromJson(scope, data, normalizeIdentifier(scope, "core", name), index);
+	auto object = loadFromJson(scope, data, normalizeIdentifier(scope, CModHandler::scopeBuiltin(), name), index);
 	object->imageIndex = static_cast<si32>(index);

 	assert(objects[index] == nullptr); // ensure that this id was not loaded before
--- a/lib/CModHandler.cpp
+++ b/lib/CModHandler.cpp
@ -209,16 +209,15 @@ std::vector<CIdentifierStorage::ObjectData> CIdentifierStorage::getPossibleIdent
 	// called have not specified destination mod explicitly
 	if (request.remoteScope.empty())
 	{
-		// FIXME: temporary, for queries from map loader allow access to any identifer
-		// should be changed to list of mods that are marked as required by current map
-		if (request.localScope == "map")
+		// special scope that should have access to all in-game objects
+		if (request.localScope == CModHandler::scopeGame())
 		{
 			for (auto const & modName : VLC->modh->getActiveMods())
 				allowedScopes.insert(modName);
 		}

-		// normally ID's from all required mods, own mod and virtual "core" mod are allowed
-		else if(request.localScope != "core" && !request.localScope.empty())
+		// normally ID's from all required mods, own mod and virtual built-in mod are allowed
+		else if(request.localScope != CModHandler::scopeBuiltin() && !request.localScope.empty())
 		{
 			allowedScopes = VLC->modh->getModDependencies(request.localScope, isValidScope);

@ -229,15 +228,19 @@ std::vector<CIdentifierStorage::ObjectData> CIdentifierStorage::getPossibleIdent
 		}

 		// all mods can access built-in mod
-		allowedScopes.insert("core");
+		allowedScopes.insert(CModHandler::scopeBuiltin());
 	}
 	else
 	{
 		//if destination mod was specified explicitly, restrict lookup to this mod
-
-		if(request.remoteScope == "core" )
+		if(request.remoteScope == CModHandler::scopeBuiltin() )
 		{
-			//"core" mod is an implicit dependency for all mods, allow access into it
+			//built-in mod is an implicit dependency for all mods, allow access into it
+			allowedScopes.insert(request.remoteScope);
+		}
+		else if ( request.localScope == CModHandler::scopeGame() )
+		{
+			// allow access, this is special scope that should have access to all in-game objects
 			allowedScopes.insert(request.remoteScope);
 		}
 		else if(request.remoteScope == request.localScope )
@ -340,7 +343,7 @@ ContentTypeHandler::ContentTypeHandler(IHandlerBase * handler, std::string objec
 {
 	for(auto & node : originalData)
 	{
-		node.setMeta("core");
+		node.setMeta(CModHandler::scopeBuiltin());
 	}
 }

@ -401,6 +404,9 @@ bool ContentTypeHandler::loadMod(std::string modName, bool validate)

 		if (vstd::contains(data.Struct(), "index") && !data["index"].isNull())
 		{
+			if (modName != "core")
+				logMod->warn("Mod %s is attempting to load original data! This should be reserved for built-in mod.", modName);
+
 			// try to add H3 object data
 			size_t index = static_cast<size_t>(data["index"].Float());

@ -413,7 +419,7 @@ bool ContentTypeHandler::loadMod(std::string modName, bool validate)
 			}
 			else
 			{
-				logMod->warn("no original data in loadMod(%s) at index %d", name, index);
+				logMod->trace("no original data in loadMod(%s) at index %d", name, index);
 			}
 			performValidate(data, name);
 			handler->loadObject(modName, name, data, index);
@ -506,7 +512,7 @@ void CContentHandler::preloadData(CModInfo & mod)
 	// print message in format [<8-symbols checksum>] <modname>
 	logMod->info("\t\t[%08x]%s", mod.checksum, mod.name);

-	if (validate && mod.identifier != "core")
+	if (validate && mod.identifier != CModHandler::scopeBuiltin())
 	{
 		if (!JsonUtils::validate(mod.config, "vcmi:mod", mod.identifier))
 			mod.validation = CModInfo::FAILED;
@ -698,13 +704,13 @@ CModHandler::CModHandler() : content(std::make_shared<CContentHandler>())
    modules.MITHRIL = false;
 	for (int i = 0; i < GameConstants::RESOURCE_QUANTITY; ++i)
 	{
-		identifiers.registerObject("core", "resource", GameConstants::RESOURCE_NAMES[i], i);
+		identifiers.registerObject(CModHandler::scopeBuiltin(), "resource", GameConstants::RESOURCE_NAMES[i], i);
 	}

 	for(int i=0; i<GameConstants::PRIMARY_SKILLS; ++i)
 	{
-		identifiers.registerObject("core", "primSkill", PrimarySkill::names[i], i);
-		identifiers.registerObject("core", "primarySkill", PrimarySkill::names[i], i);
+		identifiers.registerObject(CModHandler::scopeBuiltin(), "primSkill", PrimarySkill::names[i], i);
+		identifiers.registerObject(CModHandler::scopeBuiltin(), "primarySkill", PrimarySkill::names[i], i);
 	}
 }

@ -905,6 +911,35 @@ std::vector<std::string> CModHandler::getModList(std::string path)
 	return foundMods;
 }

+bool CModHandler::isScopeReserved(const TModID & scope)
+{
+	static const std::array<TModID, 3> reservedScopes = {
+		"core", "map", "game"
+	};
+
+	return std::find(reservedScopes.begin(), reservedScopes.end(), scope) != reservedScopes.end();
+}
+
+const TModID & CModHandler::scopeBuiltin()
+{
+	static const TModID scope = "core";
+	return scope;
+}
+
+const TModID & CModHandler::scopeGame()
+{
+	static const TModID scope = "game";
+	return scope;
+}
+
+const TModID & CModHandler::scopeMap()
+{
+	//TODO: implement accessing map dependencies for both H3 and VCMI maps
+	// for now, allow access to any identifiers
+	static const TModID scope = "game";
+	return scope;
+}
+
 void CModHandler::loadMods(std::string path, std::string parent, const JsonNode & modSettings, bool enableMods)
 {
 	for(std::string modName : getModList(path))
@ -916,6 +951,12 @@ void CModHandler::loadOneMod(std::string modName, std::string parent, const Json
 	boost::to_lower(modName);
 	std::string modFullName = parent.empty() ? modName : parent + '.' + modName;

+	if ( isScopeReserved(modFullName))
+	{
+		logMod->error("Can not load mod %s - this name is reserved for internal use!", modFullName);
+		return;
+	}
+
 	if(CResourceHandler::get("initial")->existsResource(ResourceID(CModInfo::getModFile(modFullName))))
 	{
 		CModInfo mod(modFullName, modSettings[modName], JsonNode(ResourceID(CModInfo::getModFile(modFullName))));
@ -944,7 +985,7 @@ void CModHandler::loadMods(bool onlyEssential)
 		loadMods("", "", modConfig["activeMods"], true);
 	}

-	coreMod = CModInfo("core", modConfig["core"], JsonNode(ResourceID("config/gameConfig.json")));
+	coreMod = CModInfo(CModHandler::scopeBuiltin(), modConfig[CModHandler::scopeBuiltin()], JsonNode(ResourceID("config/gameConfig.json")));
 	coreMod.name = "Original game files";
 }

@ -991,7 +1032,7 @@ static ui32 calculateModChecksum(const std::string modName, ISimpleResourceLoade

 	// second - add mod.json into checksum because filesystem does not contains this file
 	// FIXME: remove workaround for core mod
-	if (modName != "core")
+	if (modName != CModHandler::scopeBuiltin())
 	{
 		ResourceID modConfFile(CModInfo::getModFile(modName), EResType::TEXT);
 		ui32 configChecksum = CResourceHandler::get("initial")->load(modConfFile)->calculateCRC32();
@ -1017,7 +1058,7 @@ void CModHandler::loadModFilesystems()
 {
 	activeMods = validateAndSortDependencies(activeMods);

-	coreMod.updateChecksum(calculateModChecksum("core", CResourceHandler::get("core")));
+	coreMod.updateChecksum(calculateModChecksum(CModHandler::scopeBuiltin(), CResourceHandler::get(CModHandler::scopeBuiltin())));

 	for(std::string & modName : activeMods)
 	{
@ -1057,7 +1098,7 @@ void CModHandler::load()
 		allMods[modName].updateChecksum(calculateModChecksum(modName, CResourceHandler::get(modName)));
 	}

-	// first - load virtual "core" mod that contains all data
+	// first - load virtual builtin mod that contains all data
 	// TODO? move all data into real mods? RoE, AB, SoD, WoG
 	content->preloadData(coreMod);
 	for(const TModID & modName : activeMods)
@ -1096,7 +1137,7 @@ void CModHandler::afterLoad(bool onlyEssential)

 		modSettings["activeMods"].resolvePointer(pointer) = modEntry.second.saveLocalData();
 	}
-	modSettings["core"] = coreMod.saveLocalData();
+	modSettings[CModHandler::scopeBuiltin()] = coreMod.saveLocalData();

 	if(!onlyEssential)
 	{
--- a/lib/CModHandler.h
+++ b/lib/CModHandler.h
@ -14,6 +14,12 @@
 #include "VCMI_Lib.h"
 #include "JsonNode.h"

+#ifdef __UCLIBC__
+#undef major
+#undef minor
+#undef patch
+#endif
+
 VCMI_LIB_NAMESPACE_BEGIN

 class CModHandler;
@ -277,7 +283,19 @@ class DLL_LINKAGE CModHandler
 	void loadMods(std::string path, std::string parent, const JsonNode & modSettings, bool enableMods);
 	void loadOneMod(std::string modName, std::string parent, const JsonNode & modSettings, bool enableMods);
 public:
-	
+
+	/// returns true if scope is reserved for internal use and can not be used by mods
+	static bool isScopeReserved(const TModID & scope);
+
+	/// reserved scope name for referencing built-in (e.g. H3) objects
+	static const TModID & scopeBuiltin();
+
+	/// reserved scope name for accessing objects from any loaded mod
+	static const TModID & scopeGame();
+
+	/// reserved scope name for accessing object for map loading
+	static const TModID & scopeMap();
+
 	class DLL_LINKAGE Incompatibility: public std::exception
 	{
 	public:
--- a/lib/CPathfinder.cpp
+++ b/lib/CPathfinder.cpp
@ -625,7 +625,7 @@ void LayerTransitionRule::process(
 		else if(destination.node->accessible != CGPathNode::ACCESSIBLE)
 		{
 			/// Hero that fly can only land on accessible tiles
-			if(!destination.isGuardianTile && destination.nodeObject)
+			if(destination.nodeObject)
 				destination.blocked = true;
 		}

--- a/lib/CSkillHandler.cpp
+++ b/lib/CSkillHandler.cpp
@ -267,7 +267,7 @@ std::vector<bool> CSkillHandler::getDefaultAllowed() const

 si32 CSkillHandler::decodeSkill(const std::string & identifier)
 {
-	auto rawId = VLC->modh->identifiers.getIdentifier("core", "skill", identifier);
+	auto rawId = VLC->modh->identifiers.getIdentifier(CModHandler::scopeMap(), "skill", identifier);
 	if(rawId)
 		return rawId.get();
 	else
--- a/lib/CTownHandler.cpp
+++ b/lib/CTownHandler.cpp
@ -1010,7 +1010,7 @@ CFaction * CTownHandler::loadFromJson(const std::string & scope, const JsonNode

 void CTownHandler::loadObject(std::string scope, std::string name, const JsonNode & data)
 {
-	auto object = loadFromJson(scope, data, normalizeIdentifier(scope, "core", name), objects.size());
+	auto object = loadFromJson(scope, data, normalizeIdentifier(scope, CModHandler::scopeBuiltin(), name), objects.size());

 	objects.push_back(object);

@ -1049,7 +1049,7 @@ void CTownHandler::loadObject(std::string scope, std::string name, const JsonNod

 void CTownHandler::loadObject(std::string scope, std::string name, const JsonNode & data, size_t index)
 {
-	auto object = loadFromJson(scope, data, normalizeIdentifier(scope, "core", name), index);
+	auto object = loadFromJson(scope, data, normalizeIdentifier(scope, CModHandler::scopeBuiltin(), name), index);

 	if (objects.size() > index)
 		assert(objects[index] == nullptr); // ensure that this id was not loaded before
@ -1083,7 +1083,7 @@ void CTownHandler::loadRandomFaction()
 	static const ResourceID randomFactionPath("config/factions/random.json");

 	JsonNode randomFactionJson(randomFactionPath);
-	randomFactionJson.setMeta("core", true);
+	randomFactionJson.setMeta(CModHandler::scopeBuiltin(), true);
 	loadBuildings(randomTown, randomFactionJson["random"]["town"]["buildings"]);
 }

--- a/lib/GameConstants.cpp
+++ b/lib/GameConstants.cpp
@ -62,7 +62,7 @@ namespace GameConstants

 si32 HeroTypeID::decode(const std::string & identifier)
 {
-	auto rawId = VLC->modh->identifiers.getIdentifier("core", "hero", identifier);
+	auto rawId = VLC->modh->identifiers.getIdentifier(CModHandler::scopeMap(), "hero", identifier);
 	if(rawId)
 		return rawId.get();
 	else
@ -86,7 +86,7 @@ const Artifact * ArtifactID::toArtifact(const ArtifactService * service) const

 si32 ArtifactID::decode(const std::string & identifier)
 {
-	auto rawId = VLC->modh->identifiers.getIdentifier("core", "artifact", identifier);
+	auto rawId = VLC->modh->identifiers.getIdentifier(CModHandler::scopeGame(), "artifact", identifier);
 	if(rawId)
 		return rawId.get();
 	else
@ -110,7 +110,7 @@ const Creature * CreatureID::toCreature(const CreatureService * creatures) const

 si32 CreatureID::decode(const std::string & identifier)
 {
-	auto rawId = VLC->modh->identifiers.getIdentifier("core", "creature", identifier);
+	auto rawId = VLC->modh->identifiers.getIdentifier(CModHandler::scopeGame(), "creature", identifier);
 	if(rawId)
 		return rawId.get();
 	else
@ -139,7 +139,7 @@ const spells::Spell * SpellID::toSpell(const spells::Service * service) const

 si32 SpellID::decode(const std::string & identifier)
 {
-	auto rawId = VLC->modh->identifiers.getIdentifier("core", "spell", identifier);
+	auto rawId = VLC->modh->identifiers.getIdentifier(CModHandler::scopeGame(), "spell", identifier);
 	if(rawId)
 		return rawId.get();
 	else
@ -201,7 +201,7 @@ const FactionID FactionID::NEUTRAL = FactionID(9);

 si32 FactionID::decode(const std::string & identifier)
 {
-	auto rawId = VLC->modh->identifiers.getIdentifier("core", "faction", identifier);
+	auto rawId = VLC->modh->identifiers.getIdentifier(CModHandler::scopeGame(), "faction", identifier);
 	if(rawId)
 		return rawId.get();
 	else
@ -289,7 +289,7 @@ const BattleFieldInfo * BattleField::getInfo() const

 BattleField BattleField::fromString(std::string identifier)
 {
-	auto rawId = VLC->modh->identifiers.getIdentifier("core", "battlefield", identifier);
+	auto rawId = VLC->modh->identifiers.getIdentifier(CModHandler::scopeBuiltin(), "battlefield", identifier);

 	if(rawId)
 		return BattleField(rawId.get());
@ -309,7 +309,7 @@ Obstacle::operator std::string() const

 Obstacle Obstacle::fromString(std::string identifier)
 {
-	auto rawId = VLC->modh->identifiers.getIdentifier("core", "obstacle", identifier);
+	auto rawId = VLC->modh->identifiers.getIdentifier(CModHandler::scopeBuiltin(), "obstacle", identifier);

 	if(rawId)
 		return Obstacle(rawId.get());
--- a/lib/IHandlerBase.cpp
+++ b/lib/IHandlerBase.cpp
@ -14,6 +14,10 @@

 VCMI_LIB_NAMESPACE_BEGIN

+std::string IHandlerBase::getScopeBuiltin() const
+{
+	return CModHandler::scopeBuiltin();
+}

 void IHandlerBase::registerObject(std::string scope, std::string type_name, std::string name, si32 index)
 {
--- a/lib/IHandlerBase.h
+++ b/lib/IHandlerBase.h
@ -21,6 +21,8 @@ class Entity;
 class DLL_LINKAGE IHandlerBase
 {
 protected:
+	std::string getScopeBuiltin() const;
+
 	/// Calls modhandler. Mostly needed to avoid large number of includes in headers
 	void registerObject(std::string scope, std::string type_name, std::string name, si32 index);
 	std::string normalizeIdentifier(const std::string & scope, const std::string & remoteScope, const std::string & identifier) const;
@ -92,7 +94,7 @@ public:

 	void loadObject(std::string scope, std::string name, const JsonNode & data) override
 	{
-		auto object = loadFromJson(scope, data, normalizeIdentifier(scope, "core", name), objects.size());
+		auto object = loadFromJson(scope, data, normalizeIdentifier(scope, getScopeBuiltin(), name), objects.size());

 		objects.push_back(object);

@ -102,7 +104,7 @@ public:

 	void loadObject(std::string scope, std::string name, const JsonNode & data, size_t index) override
 	{
-		auto object = loadFromJson(scope, data, normalizeIdentifier(scope, "core", name), index);
+		auto object = loadFromJson(scope, data, normalizeIdentifier(scope, getScopeBuiltin(), name), index);

 		assert(objects[index] == nullptr); // ensure that this id was not loaded before
 		objects[index] = object;
--- a/lib/JsonDetail.cpp
+++ b/lib/JsonDetail.cpp
@ -999,7 +999,7 @@ namespace
 		bool testFilePresence(std::string scope, ResourceID resource)
 		{
 			std::set<std::string> allowedScopes;
-			if(scope != "core" && !scope.empty()) // all real mods may have dependencies
+			if(scope != CModHandler::scopeBuiltin() && !scope.empty()) // all real mods may have dependencies
 			{
 				//NOTE: recursive dependencies are not allowed at the moment - update code if this changes
 				bool found = true;
@ -1008,7 +1008,7 @@ namespace
 				if(!found)
 					return false;

-				allowedScopes.insert("core"); // all mods can use H3 files
+				allowedScopes.insert(CModHandler::scopeBuiltin()); // all mods can use H3 files
 			}
 			allowedScopes.insert(scope); // mods can use their own files

--- a/lib/NetPacksLib.cpp
+++ b/lib/NetPacksLib.cpp
@ -703,13 +703,18 @@ DLL_LINKAGE void GiveHero::applyGs(CGameState *gs)
 	//bonus system
 	h->detachFrom(gs->globalEffects);
 	h->attachTo(*gs->getPlayerState(player));
-	h->appearance = VLC->objtypeh->getHandlerFor(Obj::HERO, h->type->heroClass->getIndex())->getTemplates().front();

+	auto oldOffset = h->getVisitableOffset();
 	gs->map->removeBlockVisTiles(h,true);
+	h->appearance = VLC->objtypeh->getHandlerFor(Obj::HERO, h->type->heroClass->getIndex())->getTemplates().front();
+	auto newOffset = h->getVisitableOffset();
+
 	h->setOwner(player);
 	h->movement =  h->maxMovePoints(true);
+	h->pos = h->pos - oldOffset + newOffset;
 	gs->map->heroesOnMap.push_back(h);
 	gs->getPlayerState(h->getOwner())->heroes.push_back(h);
+
 	gs->map->addBlockVisTiles(h);
 	h->inTownGarrison = false;
 }
--- a/lib/ScriptHandler.cpp
+++ b/lib/ScriptHandler.cpp
@ -242,7 +242,7 @@ ScriptPtr ScriptHandler::loadFromJson(vstd::CLoggerBase * logger, const std::str

 void ScriptHandler::loadObject(std::string scope, std::string name, const JsonNode & data)
 {
-	auto object = loadFromJson(logMod, scope, data, normalizeIdentifier(scope, "core", name));
+	auto object = loadFromJson(logMod, scope, data, normalizeIdentifier(scope, CModHandler::scopeBuiltin(), name));
 	objects[object->identifier] = object;
 }

--- a/lib/Terrain.cpp
+++ b/lib/Terrain.cpp
@ -22,7 +22,7 @@ VCMI_LIB_NAMESPACE_BEGIN
 TerrainTypeHandler::TerrainTypeHandler()
 {
 	auto allConfigs = VLC->modh->getActiveMods();
-	allConfigs.insert(allConfigs.begin(), "core");
+	allConfigs.insert(allConfigs.begin(), CModHandler::scopeBuiltin());

 	initRivers(allConfigs);
 	recreateRiverMaps();
--- a/lib/filesystem/Filesystem.cpp
+++ b/lib/filesystem/Filesystem.cpp
@ -20,6 +20,7 @@
 #include "../GameConstants.h"
 #include "../VCMIDirs.h"
 #include "../CStopWatch.h"
+#include "../CModHandler.h"

 VCMI_LIB_NAMESPACE_BEGIN

@ -207,7 +208,7 @@ void CResourceHandler::load(const std::string &fsConfigURI, bool extractArchives

 	const JsonNode fsConfig((char*)fsConfigData.first.get(), fsConfigData.second);

-	addFilesystem("data", "core", createFileSystem("", fsConfig["filesystem"], extractArchives));
+	addFilesystem("data", CModHandler::scopeBuiltin(), createFileSystem("", fsConfig["filesystem"], extractArchives));
 }

 void CResourceHandler::addFilesystem(const std::string & parent, const std::string & identifier, ISimpleResourceLoader * loader)
--- a/lib/mapObjects/CGHeroInstance.cpp
+++ b/lib/mapObjects/CGHeroInstance.cpp
@ -1413,7 +1413,7 @@ void CGHeroInstance::setHeroTypeName(const std::string & identifier)
 {
 	if(ID == Obj::HERO || ID == Obj::PRISON)
 	{
-		auto rawId = VLC->modh->identifiers.getIdentifier("core", "hero", identifier);
+		auto rawId = VLC->modh->identifiers.getIdentifier(CModHandler::scopeMap(), "hero", identifier);

 		if(rawId)
 			subID = rawId.get();
@ -1434,7 +1434,7 @@ void CGHeroInstance::serializeCommonOptions(JsonSerializeFormat & handler)
 	handler.serializeString("biography", biography);
 	handler.serializeInt("experience", exp, 0);

-	if (!handler.saving)
+	if(!handler.saving && exp != 0xffffffff) //do not gain levels if experience is not initialized
 	{
 		while (gainsLevel())
 		{
--- a/lib/mapObjects/CGTownInstance.cpp
+++ b/lib/mapObjects/CGTownInstance.cpp
@ -1466,7 +1466,7 @@ void CGTownInstance::serializeJsonOptions(JsonSerializeFormat & handler)
 	{
 		auto decodeBuilding = [this](const std::string & identifier) -> si32
 		{
-			auto rawId = VLC->modh->identifiers.getIdentifier("core", getTown()->getBuildingScope(), identifier);
+			auto rawId = VLC->modh->identifiers.getIdentifier(CModHandler::scopeMap(), getTown()->getBuildingScope(), identifier);

 			if(rawId)
 				return rawId.get();
--- a/lib/mapObjects/CObjectClassesHandler.cpp
+++ b/lib/mapObjects/CObjectClassesHandler.cpp
@ -170,7 +170,7 @@ void CObjectClassesHandler::loadObjectEntry(const std::string & identifier, cons
 		logGlobal->error("Handler with name %s was not found!", obj->handlerName);
 		return;
 	}
-	const auto convertedId = VLC->modh->normalizeIdentifier(entry.meta, "core", identifier);
+	const auto convertedId = VLC->modh->normalizeIdentifier(entry.meta, CModHandler::scopeBuiltin(), identifier);
 	const auto & entryIndex = entry["index"];
 	bool useSelectNextID = !isSubobject || entryIndex.isNull();

@ -259,14 +259,14 @@ CObjectClassesHandler::ObjectContainter * CObjectClassesHandler::loadFromJson(co

 void CObjectClassesHandler::loadObject(std::string scope, std::string name, const JsonNode & data)
 {
-	auto object = loadFromJson(scope, data, normalizeIdentifier(scope, "core", name));
+	auto object = loadFromJson(scope, data, normalizeIdentifier(scope, CModHandler::scopeBuiltin(), name));
 	objects[object->id] = object;
 	VLC->modh->identifiers.registerObject(scope, "object", name, object->id);
 }

 void CObjectClassesHandler::loadObject(std::string scope, std::string name, const JsonNode & data, size_t index)
 {
-	auto object = loadFromJson(scope, data, normalizeIdentifier(scope, "core", name));
+	auto object = loadFromJson(scope, data, normalizeIdentifier(scope, CModHandler::scopeBuiltin(), name));
 	assert(objects[(si32)index] == nullptr); // ensure that this id was not loaded before
 	objects[(si32)index] = object;
 	VLC->modh->identifiers.registerObject(scope, "object", name, object->id);
@ -308,8 +308,9 @@ TObjectTypeHandler CObjectClassesHandler::getHandlerFor(si32 type, si32 subtype)
 		if (objects.at(type)->subObjects.count(subtype))
 			return objects.at(type)->subObjects.at(subtype);
 	}
-	logGlobal->error("Failed to find object of type %d:%d", type, subtype);
-	throw std::runtime_error("Object type handler not found");
+	std::string errorString = "Failed to find object of type " + std::to_string(type) + "::" + std::to_string(subtype);
+	logGlobal->error(errorString);
+	throw std::runtime_error(errorString);
 }

 TObjectTypeHandler CObjectClassesHandler::getHandlerFor(std::string scope, std::string type, std::string subtype) const
@ -325,8 +326,9 @@ TObjectTypeHandler CObjectClassesHandler::getHandlerFor(std::string scope, std::
 			return object->subObjects.at(subId);
 		}
 	}
-	logGlobal->error("Failed to find object of type %s::%s", type, subtype);
-	throw std::runtime_error("Object type handler not found");
+	std::string errorString = "Failed to find object of type " + type + "::" + subtype;
+	logGlobal->error(errorString);
+	throw std::runtime_error(errorString);
 }

 TObjectTypeHandler CObjectClassesHandler::getHandlerFor(CompoundMapObjectID compoundIdentifier) const
--- a/lib/mapObjects/CObjectHandler.cpp
+++ b/lib/mapObjects/CObjectHandler.cpp
@ -195,7 +195,9 @@ std::set<int3> CGObjectInstance::getBlockedOffsets() const

 void CGObjectInstance::setType(si32 ID, si32 subID)
 {
-	const TerrainTile &tile = cb->gameState()->map->getTile(visitablePos());
+	auto position = visitablePos();
+	auto oldOffset = getVisitableOffset();
+	auto &tile = cb->gameState()->map->getTile(position);

 	//recalculate blockvis tiles - new appearance might have different blockmap than before
 	cb->gameState()->map->removeBlockVisTiles(this, true);
@ -206,14 +208,23 @@ void CGObjectInstance::setType(si32 ID, si32 subID)
 		return;
 	}
 	if(!handler->getTemplates(tile.terType->id).empty())
+	{
 		appearance = handler->getTemplates(tile.terType->id)[0];
+	}
 	else
+	{
+		logGlobal->warn("Object %d:%d at %s has no templates suitable for terrain %s", ID, subID, visitablePos().toString(), tile.terType->name);
 		appearance = handler->getTemplates()[0]; // get at least some appearance since alternative is crash
+	}

 	if(this->ID == Obj::PRISON && ID == Obj::HERO)
 	{
-		//adjust for the prison offset
-		pos = visitablePos();
+		auto newOffset = getVisitableOffset();
+		// FIXME: potentially unused code - setType is NOT called when releasing hero from prison
+		// instead, appearance update & pos adjustment occurs in GiveHero::applyGs
+
+		// adjust position since hero and prison may have different visitable offset
+		pos = pos - oldOffset + newOffset;
 	}

 	this->ID = Obj(ID);
--- a/lib/mapObjects/CQuest.cpp
+++ b/lib/mapObjects/CQuest.cpp
@ -1028,7 +1028,7 @@ void CGSeerHut::serializeJsonOptions(JsonSerializeFormat & handler)

 		if(doRequest)
 		{
-			auto rawId = VLC->modh->identifiers.getIdentifier("core", fullIdentifier, false);
+			auto rawId = VLC->modh->identifiers.getIdentifier(CModHandler::scopeMap(), fullIdentifier, false);

 			if(rawId)
 			{
--- a/lib/mapObjects/CRewardableObject.cpp
+++ b/lib/mapObjects/CRewardableObject.cpp
@ -970,22 +970,22 @@ void CGVisitableOPH::initObj(CRandomGenerator & rand)
 			break;
 		case Obj::LIBRARY_OF_ENLIGHTENMENT:
 		{
+			selectMode = SELECT_FIRST;
 			onVisited.addTxt(MetaString::ADVOB_TXT, 67);
 			onEmpty.addTxt(MetaString::ADVOB_TXT, 68);

-			// Don't like this one but don't see any easier approach
 			CVisitInfo visit;
 			visit.reward.primary[PrimarySkill::ATTACK] = 2;
 			visit.reward.primary[PrimarySkill::DEFENSE] = 2;
 			visit.reward.primary[PrimarySkill::KNOWLEDGE] = 2;
 			visit.reward.primary[PrimarySkill::SPELL_POWER] = 2;
+			visit.message.addTxt(MetaString::ADVOB_TXT, 66);

 			static_assert(SecSkillLevel::LEVELS_SIZE == 4, "Behavior of Library of Enlignment may not be correct");
 			for (int i=0; i<SecSkillLevel::LEVELS_SIZE; i++)
 			{
 				visit.limiter.minLevel = 10 - i * 2;
 				visit.limiter.secondary[SecondarySkill::DIPLOMACY] = i;
-				visit.message.addTxt(MetaString::ADVOB_TXT, 66);
 				info.push_back(visit);
 			}
 			break;
--- a/lib/mapObjects/MiscObjects.cpp
+++ b/lib/mapObjects/MiscObjects.cpp
@ -1804,7 +1804,7 @@ void CGScholar::serializeJsonOptions(JsonSerializeFormat & handler)
 		bonusType = RANDOM;
 		if(!json["rewardPrimSkill"].String().empty())
 		{
-			auto raw = VLC->modh->identifiers.getIdentifier("core", "primSkill", json["rewardPrimSkill"].String());
+			auto raw = VLC->modh->identifiers.getIdentifier(CModHandler::scopeBuiltin(), "primSkill", json["rewardPrimSkill"].String());
 			if(raw)
 			{
 				bonusType = PRIM_SKILL;
@ -1813,7 +1813,7 @@ void CGScholar::serializeJsonOptions(JsonSerializeFormat & handler)
 		}
 		else if(!json["rewardSkill"].String().empty())
 		{
-			auto raw = VLC->modh->identifiers.getIdentifier("core", "skill", json["rewardSkill"].String());
+			auto raw = VLC->modh->identifiers.getIdentifier(CModHandler::scopeBuiltin(), "skill", json["rewardSkill"].String());
 			if(raw)
 			{
 				bonusType = SECONDARY_SKILL;
@ -1822,7 +1822,7 @@ void CGScholar::serializeJsonOptions(JsonSerializeFormat & handler)
 		}
 		else if(!json["rewardSpell"].String().empty())
 		{
-			auto raw = VLC->modh->identifiers.getIdentifier("core", "spell", json["rewardSpell"].String());
+			auto raw = VLC->modh->identifiers.getIdentifier(CModHandler::scopeBuiltin(), "spell", json["rewardSpell"].String());
 			if(raw)
 			{
 				bonusType = SPELL;
--- a/lib/mapObjects/ObjectTemplate.cpp
+++ b/lib/mapObjects/ObjectTemplate.cpp
@ -287,7 +287,15 @@ void ObjectTemplate::readJson(const JsonNode &node, const bool withTerrain)
 	if(withTerrain && !node["allowedTerrains"].isNull())
 	{
 		for(auto& entry : node["allowedTerrains"].Vector())
-			allowedTerrains.insert(VLC->terrainTypeHandler->getInfoByName(entry.String())->id);
+		{
+			try {
+				allowedTerrains.insert(VLC->terrainTypeHandler->getInfoByName(entry.String())->id);
+			}
+			catch (const std::out_of_range & )
+			{
+				logGlobal->warn("Failed to find terrain '%s' for object '%s'", entry.String(), animationFile);
+			}
+		}
 	}
 	else
 	{
@ -300,7 +308,7 @@ void ObjectTemplate::readJson(const JsonNode &node, const bool withTerrain)
 	}

 	if(withTerrain && allowedTerrains.empty())
-		logGlobal->warn("Loaded template without allowed terrains!");
+		logGlobal->warn("Loaded template %s without allowed terrains!", animationFile);

 	auto charToTile = [&](const char & ch) -> ui8
 	{
--- a/lib/mapping/CMap.cpp
+++ b/lib/mapping/CMap.cpp
@ -256,6 +256,8 @@ CMap::CMap()

 CMap::~CMap()
 {
+	getEditManager()->getUndoManager().clearAll();
+	
 	if(terrain)
 	{
 		for(int z = 0; z < levels(); z++)
--- a/lib/mapping/MapFormatJson.cpp
+++ b/lib/mapping/MapFormatJson.cpp
@ -215,7 +215,7 @@ namespace TriggeredEventsDetail

 					event.metaType = decodeMetaclass(metaTypeName);

-					auto type = VLC->modh->identifiers.getIdentifier("core", fullIdentifier, false);
+					auto type = VLC->modh->identifiers.getIdentifier(CModHandler::scopeBuiltin(), fullIdentifier, false);

 					if(type)
 						event.objectType = type.get();
@ -1121,7 +1121,7 @@ void CMapLoaderJson::MapObjectLoader::construct()
 		return;
 	}

-	auto handler = VLC->objtypeh->getHandlerFor( "map", typeName, subtypeName);
+	auto handler = VLC->objtypeh->getHandlerFor( CModHandler::scopeMap(), typeName, subtypeName);

 	auto appearance = new ObjectTemplate;

@ -1158,7 +1158,7 @@ void CMapLoaderJson::MapObjectLoader::configure()
 		if(art->ID == Obj::SPELL_SCROLL)
 		{
 			auto spellIdentifier = configuration["options"]["spell"].String();
-			auto rawId = VLC->modh->identifiers.getIdentifier("core", "spell", spellIdentifier);
+			auto rawId = VLC->modh->identifiers.getIdentifier(CModHandler::scopeBuiltin(), "spell", spellIdentifier);
 			if(rawId)
 				spellID = rawId.get();
 			else
--- a/lib/rmg/CRmgTemplateStorage.cpp
+++ b/lib/rmg/CRmgTemplateStorage.cpp
@ -14,6 +14,7 @@
 #include "CRmgTemplate.h"

 #include "../serializer/JsonDeserializer.h"
+#include "../CModHandler.h"

 VCMI_LIB_NAMESPACE_BEGIN

@ -30,7 +31,7 @@ void CRmgTemplateStorage::loadObject(std::string scope, std::string name, const
 	try
 	{
 		JsonDeserializer handler(nullptr, data);
-		auto fullKey = normalizeIdentifier(scope, "core", name); //actually it's not used
+		auto fullKey = normalizeIdentifier(scope, CModHandler::scopeBuiltin(), name); //actually it's not used
 		templates[fullKey].setId(fullKey);
 		templates[fullKey].serializeJson(handler);
 		templates[fullKey].setName(name);
--- a/lib/rmg/CZonePlacer.cpp
+++ b/lib/rmg/CZonePlacer.cpp
@ -530,7 +530,12 @@ void CZonePlacer::assignZones(CRandomGenerator * rand)
 	}

 	for (auto zone : zones)
+	{
+		if(zone.second->area().empty())
+			throw rmgException("Empty zone is generated, probably RMG template is inappropriate for map size");
+		
 		moveZoneToCenterOfMass(zone.second);
+	}

 	//assign actual tiles to each zone using nonlinear norm for fine edges

--- a/lib/spells/CSpellHandler.cpp
+++ b/lib/spells/CSpellHandler.cpp
@ -763,7 +763,7 @@ CSpell * CSpellHandler::loadFromJson(const std::string & scope, const JsonNode &
 	{
 		if(counteredSpell.second.Bool())
 		{
-			VLC->modh->identifiers.requestIdentifier(json.meta, counteredSpell.first, [=](si32 id)
+			VLC->modh->identifiers.requestIdentifier(counteredSpell.second.meta, counteredSpell.first, [=](si32 id)
 			{
 				spell->counteredSpells.push_back(SpellID(id));
 			});
--- a/mapeditor/icons/edit-redo.png
+++ b/mapeditor/icons/edit-redo.png
--- a/mapeditor/icons/edit-undo.png
+++ b/mapeditor/icons/edit-undo.png
--- a/mapeditor/inspector/inspector.cpp
+++ b/mapeditor/inspector/inspector.cpp
@ -555,6 +555,9 @@ void Inspector::setProperty(CGHeroInstance * o, const QString & key, const QVari
 	if(key == "Name")
 		o->name = value.toString().toStdString();
 	
+	if(key == "Experience")
+		o->exp = value.toInt();
+	
 	if(key == "Hero type")
 	{
 		for(auto t : VLC->heroh->objects)
--- a/mapeditor/inspector/townbulidingswidget.cpp
+++ b/mapeditor/inspector/townbulidingswidget.cpp
@ -172,11 +172,22 @@ void TownBulidingsWidget::addBuildings(const CTown & ctown)
 std::set<BuildingID> TownBulidingsWidget::getBuildingsFromModel(int modelColumn, Qt::CheckState checkState)
 {
 	std::set<BuildingID> result;
-	for(int i = 0; i < model.rowCount(); ++i)
+	std::vector<QModelIndex> stack;
+	stack.push_back(QModelIndex());
+	while(!stack.empty())
 	{
-		if(auto * item = model.item(i, modelColumn))
-			if(item->checkState() == checkState)
-				result.emplace(item->data(Qt::UserRole).toInt());
+		auto pindex = stack.back();
+		stack.pop_back();
+		for(int i = 0; i < model.rowCount(pindex); ++i)
+		{
+			QModelIndex index = model.index(i, modelColumn, pindex);
+			if(auto * item = model.itemFromIndex(index))
+				if(item->checkState() == checkState)
+					result.emplace(item->data(Qt::UserRole).toInt());
+			index = model.index(i, 0, pindex); //children are linked to first column of the model
+			if(model.hasChildren(index))
+				stack.push_back(index);
+		}
 	}
 	
 	return result;
--- a/mapeditor/mainwindow.cpp
+++ b/mapeditor/mainwindow.cpp
@ -120,6 +120,10 @@ MainWindow::MainWindow(QWidget* parent) :
 	ui(new Ui::MainWindow),
 	controller(this)
 {
+	// Set current working dir to executable folder.
+	// This is important on Mac for relative paths to work inside DMG.
+	QDir::setCurrent(QApplication::applicationDirPath());
+	
 	for(auto & string : VCMIDirs::get().dataPaths())
 		QDir::addSearchPath("icons", pathToQString(string / "mapeditor" / "icons"));
 	QDir::addSearchPath("icons", pathToQString(VCMIDirs::get().userDataPath() / "mapeditor" / "icons"));
@ -128,10 +132,6 @@ MainWindow::MainWindow(QWidget* parent) :
 	loadUserSettings(); //For example window size
 	setTitle();

-	// Set current working dir to executable folder.
-	// This is important on Mac for relative paths to work inside DMG.
-	QDir::setCurrent(QApplication::applicationDirPath());
-
 	ExtractionOptions extractionOptions;
 	parseCommandLine(extractionOptions);

@ -550,7 +550,7 @@ void MainWindow::loadObjectsTree()

 	//model
 	objectsModel.setHorizontalHeaderLabels(QStringList() << tr("Type"));
-	objectBrowser = new ObjectBrowser(this);
+	objectBrowser = new ObjectBrowserProxyModel(this);
 	objectBrowser->setSourceModel(&objectsModel);
 	objectBrowser->setDynamicSortFilter(false);
 	objectBrowser->setRecursiveFilteringEnabled(true);
@ -853,12 +853,11 @@ void MainWindow::on_toolErase_clicked()
 	ui->tabWidget->setCurrentIndex(0);
 }

-void MainWindow::preparePreview(const QModelIndex &index, bool createNew)
+void MainWindow::preparePreview(const QModelIndex &index)
 {
 	scenePreview->clear();

 	auto data = objectsModel.itemFromIndex(objectBrowser->mapToSource(index))->data().toJsonObject();
-
 	if(!data.empty())
 	{
 		auto preview = data["preview"];
@ -866,29 +865,12 @@ void MainWindow::preparePreview(const QModelIndex &index, bool createNew)
 		{
 			QPixmap objPreview = pixmapFromJson(preview);
 			scenePreview->addPixmap(objPreview);
-
-			auto objId = data["id"].toInt();
-			auto objSubId = data["subid"].toInt();
-			auto templateId = data["template"].toInt();
-
-			if(controller.discardObject(mapLevel) || createNew)
-			{
-				auto factory = VLC->objtypeh->getHandlerFor(objId, objSubId);
-				auto templ = factory->getTemplates()[templateId];
-				controller.createObject(mapLevel, factory->create(templ));
-			}
 		}
 	}
 }


 void MainWindow::treeViewSelected(const QModelIndex & index, const QModelIndex & deselected)
-{
-	preparePreview(index, false);
-}
-
-
-void MainWindow::on_treeView_activated(const QModelIndex &index)
 {
 	ui->toolBrush->setChecked(false);
 	ui->toolBrush2->setChecked(false);
@ -896,11 +878,10 @@ void MainWindow::on_treeView_activated(const QModelIndex &index)
 	ui->toolArea->setChecked(false);
 	ui->toolLasso->setChecked(false);
 	ui->mapView->selectionTool = MapView::SelectionTool::None;
-
-	preparePreview(index, true);
+	
+	preparePreview(index);
 }

-
 void MainWindow::on_terrainFilterCombo_currentTextChanged(const QString &arg1)
 {
 	if(!objectBrowser)
--- a/mapeditor/mainwindow.h
+++ b/mapeditor/mainwindow.h
@ -8,6 +8,7 @@
 #include "resourceExtractor/ResourceConverter.h"

 class ObjectBrowser;
+class ObjectBrowserProxyModel;

 VCMI_LIB_NAMESPACE_BEGIN
 class CMap;
@ -77,8 +78,6 @@ private slots:

 	void on_toolErase_clicked();

-	void on_treeView_activated(const QModelIndex &index);
-
 	void on_terrainFilterCombo_currentTextChanged(const QString &arg1);

 	void on_filter_textChanged(const QString &arg1);
@ -116,7 +115,7 @@ public slots:
 	void displayStatus(const QString& message, int timeout = 2000);

 private:
-	void preparePreview(const QModelIndex &index, bool createNew);
+	void preparePreview(const QModelIndex & index);
 	void addGroupIntoCatalog(const std::string & groupName, bool staticOnly);
 	void addGroupIntoCatalog(const std::string & groupName, bool useCustomName, bool staticOnly, int ID);
 	
@ -136,7 +135,7 @@ private:

 private:
    Ui::MainWindow * ui;
-	ObjectBrowser * objectBrowser = nullptr;
+	ObjectBrowserProxyModel * objectBrowser = nullptr;
 	QGraphicsScene * scenePreview;
 	
 	QString filename;
--- a/mapeditor/mainwindow.ui
+++ b/mapeditor/mainwindow.ui
@ -123,6 +123,9 @@
   <addaction name="actionOpen"/>
   <addaction name="actionSave"/>
   <addaction name="separator"/>
+   <addaction name="actionUndo"/>
+   <addaction name="actionRedo"/>
+   <addaction name="separator"/>
   <addaction name="actionLevel"/>
   <addaction name="actionGrid"/>
   <addaction name="actionPass"/>
@ -300,7 +303,7 @@
          <widget class="QLineEdit" name="filter"/>
         </item>
         <item>
-          <widget class="QTreeView" name="treeView">
+          <widget class="ObjectBrowser" name="treeView">
           <property name="sizePolicy">
            <sizepolicy hsizetype="Minimum" vsizetype="Expanding">
             <horstretch>0</horstretch>
@ -316,8 +319,11 @@
           <property name="editTriggers">
            <set>QAbstractItemView::NoEditTriggers</set>
           </property>
+           <property name="showDropIndicator" stdset="0">
+            <bool>false</bool>
+           </property>
           <property name="dragDropMode">
-            <enum>QAbstractItemView::NoDragDrop</enum>
+            <enum>QAbstractItemView::DragOnly</enum>
           </property>
           <property name="selectionBehavior">
            <enum>QAbstractItemView::SelectItems</enum>
@ -1010,6 +1016,9 @@
   </property>
  </action>
  <action name="actionPlayers_settings">
+   <property name="enabled">
+    <bool>false</bool>
+   </property>
   <property name="text">
    <string>Players settings</string>
   </property>
@ -1018,6 +1027,10 @@
   <property name="enabled">
    <bool>false</bool>
   </property>
+   <property name="icon">
+    <iconset>
+     <normaloff>icons:edit-undo.png</normaloff>icons:edit-undo.png</iconset>
+   </property>
   <property name="text">
    <string>Undo</string>
   </property>
@ -1035,6 +1048,10 @@
   <property name="enabled">
    <bool>false</bool>
   </property>
+   <property name="icon">
+    <iconset>
+     <normaloff>icons:edit-redo.png</normaloff>icons:edit-redo.png</iconset>
+   </property>
   <property name="text">
    <string>Redo</string>
   </property>
@ -1192,6 +1209,11 @@
   <extends>QGraphicsView</extends>
   <header>mapview.h</header>
  </customwidget>
+  <customwidget>
+   <class>ObjectBrowser</class>
+   <extends>QTreeView</extends>
+   <header>objectbrowser.h</header>
+  </customwidget>
 </customwidgets>
 <resources/>
 <connections/>
--- a/mapeditor/mapcontroller.cpp
+++ b/mapeditor/mapcontroller.cpp
@ -128,10 +128,15 @@ void MapController::repairMap()
 			assert(type->heroClass);
 			//TODO: find a way to get proper type name
 			if(obj->ID == Obj::HERO)
+			{
 				nih->typeName = "hero";
+				nih->subTypeName = type->heroClass->identifier;
+			}
 			if(obj->ID == Obj::PRISON)
+			{
 				nih->typeName = "prison";
-			nih->subTypeName = type->heroClass->identifier;
+				nih->subTypeName = "prison";
+			}
 			
 			nih->type = type;
 			if(nih->name.empty())
@ -214,6 +219,7 @@ void MapController::setMap(std::unique_ptr<CMap> cmap)
 			main->enableRedo(allowRedo);
 		}
 	);
+	_map->getEditManager()->getUndoManager().clearAll();
 }

 void MapController::sceneForceUpdate()
--- a/mapeditor/mapview.cpp
+++ b/mapeditor/mapview.cpp
@ -13,6 +13,7 @@
 #include "mainwindow.h"
 #include <QGraphicsSceneMouseEvent>
 #include "mapcontroller.h"
+#include "../lib/mapObjects/CObjectClassesHandler.h"

 MinimapView::MinimapView(QWidget * parent):
 	QGraphicsView(parent)
@ -64,12 +65,10 @@ MapView::MapView(QWidget * parent):

 void MapView::cameraChanged(const QPointF & pos)
 {
-	//ui->mapView->translate(pos.x(), pos.y());
 	horizontalScrollBar()->setValue(pos.x());
 	verticalScrollBar()->setValue(pos.y());
 }

-
 void MapView::setController(MapController * ctrl)
 {
 	controller = ctrl;
@ -85,7 +84,12 @@ void MapView::mouseMoveEvent(QMouseEvent *mouseEvent)

 	auto pos = mapToScene(mouseEvent->pos()); //TODO: do we need to check size?
 	int3 tile(pos.x() / 32, pos.y() / 32, sc->level);
-
+	
+	//if scene will be scrolled without mouse movement, selection, object moving and rubber band will not be updated
+	//to change this behavior, all this logic should be placed in viewportEvent
+	if(rubberBand)
+		rubberBand->setGeometry(QRect(mapFromScene(mouseStart), mouseEvent->pos()).normalized());
+	
 	if(tile == tilePrev) //do not redraw
 		return;

@ -161,13 +165,7 @@ void MapView::mouseMoveEvent(QMouseEvent *mouseEvent)

 		if(sh.x || sh.y)
 		{
-			if(sc->selectionObjectsView.newObject)
-			{
-				sc->selectionObjectsView.shift = QPoint(tile.x, tile.y);
-				sc->selectionObjectsView.selectObject(sc->selectionObjectsView.newObject);
-				sc->selectionObjectsView.selectionMode = SelectionObjectsLayer::MOVEMENT;
-			}
-			else if(mouseEvent->buttons() & Qt::LeftButton)
+			if(!sc->selectionObjectsView.newObject && (mouseEvent->buttons() & Qt::LeftButton))
 			{
 				if(sc->selectionObjectsView.selectionMode == SelectionObjectsLayer::SELECTION)
 				{
@ -296,6 +294,11 @@ void MapView::mousePressEvent(QMouseEvent *event)
 				{
 					sc->selectionObjectsView.clear();
 					sc->selectionObjectsView.selectionMode = SelectionObjectsLayer::SELECTION;
+					
+					if(!rubberBand)
+						rubberBand = new QRubberBand(QRubberBand::Rectangle, this);
+					rubberBand->setGeometry(QRect(mapFromScene(mouseStart), QSize()));
+					rubberBand->show();
 				}
 			}
 			sc->selectionObjectsView.shift = QPoint(0, 0);
@ -314,6 +317,9 @@ void MapView::mouseReleaseEvent(QMouseEvent *event)
 	auto * sc = static_cast<MapScene*>(scene());
 	if(!sc || !controller->map())
 		return;
+	
+	if(rubberBand)
+		rubberBand->hide();

 	switch(selectionTool)
 	{
@ -324,19 +330,7 @@ void MapView::mouseReleaseEvent(QMouseEvent *event)
 		bool tab = false;
 		if(sc->selectionObjectsView.selectionMode == SelectionObjectsLayer::MOVEMENT)
 		{
-			if(sc->selectionObjectsView.newObject)
-			{
-				QString errorMsg;
-				if(controller->canPlaceObject(sc->level, sc->selectionObjectsView.newObject, errorMsg))
-					controller->commitObjectCreate(sc->level);
-				else
-				{
-					QMessageBox::information(this, "Can't place object", errorMsg);
-					break;
-				}
-			}
-			else
-				controller->commitObjectShift(sc->level);
+			controller->commitObjectShift(sc->level);
 		}
 		else
 		{
@ -355,11 +349,103 @@ void MapView::mouseReleaseEvent(QMouseEvent *event)
 	}
 }

+void MapView::dragEnterEvent(QDragEnterEvent * event)
+{
+	if(!controller || !controller->map())
+		return;
+	
+	auto * sc = static_cast<MapScene*>(scene());
+	if(!sc)
+		return;
+	
+	if(event->mimeData()->hasImage())
+	{
+		logGlobal->info("Drag'n'drop: dispatching object");
+		QVariant vdata = event->mimeData()->imageData();
+		auto data = vdata.toJsonObject();
+		if(!data.empty())
+		{
+			auto preview = data["preview"];
+			if(preview != QJsonValue::Undefined)
+			{
+				auto objId = data["id"].toInt();
+				auto objSubId = data["subid"].toInt();
+				auto templateId = data["template"].toInt();
+				auto factory = VLC->objtypeh->getHandlerFor(objId, objSubId);
+				auto templ = factory->getTemplates()[templateId];
+				controller->discardObject(sc->level);
+				controller->createObject(sc->level, factory->create(templ));
+			}
+		}
+		
+		event->acceptProposedAction();
+	}
+}
+
+void MapView::dropEvent(QDropEvent * event)
+{
+	if(!controller || !controller->map())
+		return;
+	
+	auto * sc = static_cast<MapScene*>(scene());
+	if(!sc)
+		return;
+	
+	if(sc->selectionObjectsView.newObject)
+	{
+		QString errorMsg;
+		if(controller->canPlaceObject(sc->level, sc->selectionObjectsView.newObject, errorMsg))
+		{
+			controller->commitObjectCreate(sc->level);
+		}
+		else
+		{
+			controller->discardObject(sc->level);
+			QMessageBox::information(this, "Can't place object", errorMsg);
+		}
+	}
+
+	event->acceptProposedAction();
+}
+
+void MapView::dragMoveEvent(QDragMoveEvent * event)
+{
+	auto * sc = static_cast<MapScene*>(scene());
+	if(!sc)
+		return;
+	
+	auto rect = event->answerRect();
+	auto pos = mapToScene(rect.bottomRight()); //TODO: do we need to check size?
+	int3 tile(pos.x() / 32 + 1, pos.y() / 32 + 1, sc->level);
+	
+	if(sc->selectionObjectsView.newObject)
+	{
+		sc->selectionObjectsView.shift = QPoint(tile.x, tile.y);
+		sc->selectionObjectsView.selectObject(sc->selectionObjectsView.newObject);
+		sc->selectionObjectsView.selectionMode = SelectionObjectsLayer::MOVEMENT;
+		sc->selectionObjectsView.draw();
+	}
+	
+	event->acceptProposedAction();
+}
+
+void MapView::dragLeaveEvent(QDragLeaveEvent * event)
+{
+	if(!controller || !controller->map())
+		return;
+	
+	auto * sc = static_cast<MapScene*>(scene());
+	if(!sc)
+		return;
+	
+	controller->discardObject(sc->level);
+}
+
+
 bool MapView::viewportEvent(QEvent *event)
 {
 	if(auto * sc = static_cast<MapScene*>(scene()))
 	{
-		//auto rect = sceneRect();
 		auto rect = mapToScene(viewport()->geometry()).boundingRect();
 		controller->miniScene(sc->level)->viewport.setViewport(rect.x() / 32, rect.y() / 32, rect.width() / 32, rect.height() / 32);
 	}
--- a/mapeditor/mapview.h
+++ b/mapeditor/mapview.h
@ -101,6 +101,10 @@ public slots:
 	void mouseMoveEvent(QMouseEvent * mouseEvent) override;
 	void mousePressEvent(QMouseEvent *event) override;
 	void mouseReleaseEvent(QMouseEvent *event) override;
+	void dragEnterEvent(QDragEnterEvent * event) override;
+	void dragMoveEvent(QDragMoveEvent *event) override;
+	void dragLeaveEvent(QDragLeaveEvent *event) override;
+	void dropEvent(QDropEvent * event) override;
 	
 	void cameraChanged(const QPointF & pos);
 	
@ -113,6 +117,7 @@ protected:
 	
 private:
 	MapController * controller = nullptr;
+	QRubberBand * rubberBand = nullptr;
 	QPointF mouseStart;
 	int3 tileStart;
 	int3 tilePrev;
@ -130,7 +135,7 @@ public:
 	
 public slots:
 	void mouseMoveEvent(QMouseEvent * mouseEvent) override;
-	void mousePressEvent(QMouseEvent* event) override;
+	void mousePressEvent(QMouseEvent * event) override;
 	
 signals:
 	void cameraPositionChanged(const QPointF & newPosition);
--- a/mapeditor/objectbrowser.cpp
+++ b/mapeditor/objectbrowser.cpp
@ -12,12 +12,12 @@
 #include "objectbrowser.h"
 #include "../lib/mapObjects/CObjectClassesHandler.h"

-ObjectBrowser::ObjectBrowser(QObject *parent)
+ObjectBrowserProxyModel::ObjectBrowserProxyModel(QObject *parent)
 	: QSortFilterProxyModel{parent}, terrain(Terrain::ANY_TERRAIN)
 {
 }

-bool ObjectBrowser::filterAcceptsRow(int source_row, const QModelIndex & source_parent) const
+bool ObjectBrowserProxyModel::filterAcceptsRow(int source_row, const QModelIndex & source_parent) const
 {
 	bool result = QSortFilterProxyModel::filterAcceptsRow(source_row, source_parent);

@ -57,7 +57,7 @@ bool ObjectBrowser::filterAcceptsRow(int source_row, const QModelIndex & source_
 	return result;
 }

-bool ObjectBrowser::filterAcceptsRowText(int source_row, const QModelIndex &source_parent) const
+bool ObjectBrowserProxyModel::filterAcceptsRowText(int source_row, const QModelIndex &source_parent) const
 {
 	if(source_parent.isValid())
 	{
@ -76,3 +76,52 @@ bool ObjectBrowser::filterAcceptsRowText(int source_row, const QModelIndex &sour
 	return (filter.isNull() || filter.isEmpty() || item->text().contains(filter, Qt::CaseInsensitive));
 }

+Qt::ItemFlags ObjectBrowserProxyModel::flags(const QModelIndex & index) const
+{
+	Qt::ItemFlags defaultFlags = QSortFilterProxyModel::flags(index);
+
+	if (index.isValid())
+		return Qt::ItemIsDragEnabled | defaultFlags;
+	
+	return defaultFlags;
+}
+
+QMimeData * ObjectBrowserProxyModel::mimeData(const QModelIndexList & indexes) const
+{
+	assert(indexes.size() == 1);
+	
+	auto * standardModel = qobject_cast<QStandardItemModel*>(sourceModel());
+	assert(standardModel);
+	
+	QModelIndex index = indexes.front();
+	
+	if(!index.isValid())
+		return nullptr;
+
+	QMimeData * mimeData = new QMimeData;
+	mimeData->setImageData(standardModel->itemFromIndex(mapToSource(index))->data());
+	return mimeData;
+}
+
+ObjectBrowser::ObjectBrowser(QWidget * parent):
+	QTreeView(parent)
+{
+	setDropIndicatorShown(false);
+}
+
+void ObjectBrowser::startDrag(Qt::DropActions supportedActions)
+{
+	logGlobal->info("Drag'n'drop: Start dragging object from ObjectBrowser");
+	QDrag *drag = new QDrag(this);
+	auto indexes = selectedIndexes();
+	if(indexes.isEmpty())
+		return;
+	
+	QMimeData * mimeData = model()->mimeData(indexes);
+	if(!mimeData)
+		return;
+		
+	drag->setMimeData(mimeData);
+
+	Qt::DropAction dropAction = drag->exec(supportedActions);
+}
--- a/mapeditor/objectbrowser.h
+++ b/mapeditor/objectbrowser.h
@ -13,10 +13,14 @@
 #include <QSortFilterProxyModel>
 #include "../lib/Terrain.h"

-class ObjectBrowser : public QSortFilterProxyModel
+class ObjectBrowserProxyModel : public QSortFilterProxyModel
 {
 public:
-	explicit ObjectBrowser(QObject *parent = nullptr);
+	explicit ObjectBrowserProxyModel(QObject *parent = nullptr);
+	
+	Qt::ItemFlags flags(const QModelIndex &index) const override;
+		
+	QMimeData * mimeData(const QModelIndexList & indexes) const override;

 	TerrainId terrain;
 	QString filter;
@ -25,3 +29,12 @@ protected:
 	bool filterAcceptsRow(int source_row, const QModelIndex & source_parent) const override;
 	bool filterAcceptsRowText(int source_row, const QModelIndex &source_parent) const;
 };
+
+class ObjectBrowser : public QTreeView
+{
+public:
+	ObjectBrowser(QWidget * parent);
+	
+protected:
+	void startDrag(Qt::DropActions supportedActions) override;
+};
--- a/mapeditor/scenelayer.cpp
+++ b/mapeditor/scenelayer.cpp
@ -401,7 +401,7 @@ void SelectionObjectsLayer::draw()
 		//show translation
 		if(selectionMode == SelectionMode::MOVEMENT && (shift.x() || shift.y()))
 		{
-			painter.setOpacity(0.5);
+			painter.setOpacity(0.7);
 			auto newPos = QPoint(obj->getPosition().x, obj->getPosition().y) + shift;
 			handler->drawObjectAt(painter, obj, newPos.x(), newPos.y());
 		}
@ -471,8 +471,11 @@ void SelectionObjectsLayer::selectObjects(int x1, int y1, int x2, int y2)
 	{
 		for(int i = x1; i < x2; ++i)
 		{
-			for(auto & o : handler->getObjects(i, j, scene->level))
-				selectObject(o.obj, false); //do not inform about each object added
+			if(map->isInTheMap(int3(i, j, scene->level)))
+			{
+				for(auto & o : handler->getObjects(i, j, scene->level))
+					selectObject(o.obj, false); //do not inform about each object added
+			}
 		}
 	}
 	onSelection();
--- a/mapeditor/scenelayer.h
+++ b/mapeditor/scenelayer.h
@ -148,7 +148,6 @@ public:
 	void deselectObject(CGObjectInstance *);
 	bool isSelected(const CGObjectInstance *) const;
 	std::set<CGObjectInstance*> getSelection() const;
-	void moveSelection(int x, int y);
 	void clear();
 		
 	QPoint shift;
--- a/mapeditor/windownewmap.cpp
+++ b/mapeditor/windownewmap.cpp
@ -37,8 +37,10 @@ WindowNewMap::WindowNewMap(QWidget *parent) :
 	show();

 	//setup initial parameters
-	mapGenOptions.setWidth(ui->widthTxt->text().toInt());
-	mapGenOptions.setHeight(ui->heightTxt->text().toInt());
+	int width = ui->widthTxt->text().toInt();
+	int height = ui->heightTxt->text().toInt();
+	mapGenOptions.setWidth(width ? width : 1);
+	mapGenOptions.setHeight(height ? height : 1);
 	bool twoLevel = ui->twoLevelCheck->isChecked();
 	mapGenOptions.setHasTwoLevels(twoLevel);
 	updateTemplateList();
--- a/scripting/lua/LuaScriptingContext.cpp
+++ b/scripting/lua/LuaScriptingContext.cpp
@ -511,14 +511,14 @@ int LuaContext::loadModule()

 		registar->pushMetatable(L);
 	}
-	else if(scope == "core")
+	else if(scope == CModHandler::scopeBuiltin())
 	{

 	//	boost::algorithm::replace_all(modulePath, boost::is_any_of("\\/ "), "");

 		boost::algorithm::replace_all(modulePath, ".", "/");

-		auto loader = CResourceHandler::get("core");
+		auto loader = CResourceHandler::get(CModHandler::scopeBuiltin());

 		modulePath = "scripts/lib/" + modulePath;

--- a/server/CGameHandler.cpp
+++ b/server/CGameHandler.cpp
@ -6642,6 +6642,8 @@ void CGameHandler::runBattle()
 			}
 		}
 	}
+	// it is possible that due to opening spells one side was eliminated -> check for end of battle
+	checkBattleStateChanges();

 	bool firstRound = true;//FIXME: why first round is -1?

--- a/server/CVCMIServer.cpp
+++ b/server/CVCMIServer.cpp
@ -55,7 +55,7 @@

 #include "../lib/CGameState.h"

-#if defined(__GNUC__) && !defined(__MINGW32__) && !defined(VCMI_ANDROID) && !defined(VCMI_IOS)
+#if defined(__GNUC__) && !defined(__UCLIBC__) && !defined(__MINGW32__) && !defined(VCMI_ANDROID) && !defined(VCMI_IOS)
 #include <execinfo.h>
 #endif

@ -958,7 +958,7 @@ ui8 CVCMIServer::getIdOfFirstUnallocatedPlayer() const
 	return 0;
 }

-#if defined(__GNUC__) && !defined(__MINGW32__) && !defined(VCMI_ANDROID) && !defined(VCMI_IOS)
+#if defined(__GNUC__) && !defined(__UCLIBC__) && !defined(__MINGW32__) && !defined(VCMI_ANDROID) && !defined(VCMI_IOS)
 void handleLinuxSignal(int sig)
 {
 	const int STACKTRACE_SIZE = 100;
@ -1013,6 +1013,10 @@ static void handleCommandOptions(int argc, char * argv[], boost::program_options
 			std::cerr << "Failure during parsing command-line options:\n" << e.what() << std::endl;
 		}
 	}
+	
+#ifdef SINGLE_PROCESS_APP
+	options.emplace("run-by-client", po::variable_value{true, true});
+#endif

 	po::notify(options);

@ -1049,7 +1053,7 @@ int main(int argc, char * argv[])
 #endif
 	// Installs a sig sev segmentation violation handler
 	// to log stacktrace
-#if defined(__GNUC__) && !defined(__MINGW32__) && !defined(VCMI_ANDROID) && !defined(VCMI_IOS)
+#if defined(__GNUC__) && !defined(__UCLIBC__) && !defined(__MINGW32__) && !defined(VCMI_ANDROID) && !defined(VCMI_IOS)
 	signal(SIGSEGV, handleLinuxSignal);
 #endif

--- a/server/NetPacksServer.cpp
+++ b/server/NetPacksServer.cpp
@ -89,7 +89,17 @@ bool SaveGame::applyGh(CGameHandler * gh)

 bool EndTurn::applyGh(CGameHandler * gh)
 {
-	PlayerColor player = GS(gh)->currentPlayer;
+	PlayerColor currentPlayer = GS(gh)->currentPlayer;
+	if(player != currentPlayer)
+	{
+		if(gh->getPlayerStatus(player) == EPlayerStatus::INGAME)
+			throwAndComplain(gh, "Player attempted to end turn for another player!");
+
+		logGlobal->debug("Player attempted to end turn after game over. Ignoring this request.");
+
+		return true;
+	}
+
 	throwOnWrongPlayer(gh, player);
 	if(gh->queries.topQuery(player))
 		throwAndComplain(gh, "Cannot end turn before resolving queries!");
--- a/test/scripting/ScriptFixture.cpp
+++ b/test/scripting/ScriptFixture.cpp
@ -29,7 +29,7 @@ void ScriptFixture::loadScriptFromFile(const std::string & path)

 void ScriptFixture::loadScript(const JsonNode & scriptConfig)
 {
-	subject = VLC->scriptHandler->loadFromJson(&loggerMock, "core", scriptConfig, "test");
+	subject = VLC->scriptHandler->loadFromJson(&loggerMock, CModHandler::scopeBuiltin(), scriptConfig, "test");

 	GTEST_ASSERT_NE(subject, nullptr);

--- a/test/spells/effects/TimedTest.cpp
+++ b/test/spells/effects/TimedTest.cpp
@ -79,7 +79,7 @@ TEST_P(TimedApplyTest, ChangesBonuses)
 	options["cumulative"].Bool() = cumulative;
 	options["bonus"]["test1"] = testBonus1.toJsonNode();
 	options["bonus"]["test2"] = testBonus2.toJsonNode();
-	options.setMeta("core");
+	options.setMeta(CModHandler::scopeBuiltin());
 	setupEffect(options);

 	const uint32_t unitId = 42;
--- a/16
+++ b/16
@ -168,13 +168,19 @@ mkdir -p "$temp_dir"

 if [[ -n "$gog_file" ]]
 then
-	data_dir="$temp_dir"/app
+	data_dir="$temp_dir"/gog
 	mkdir -p "$data_dir"

 	# innoextract always reports error (iconv 84 error). Just test file for presence
 	test -f "$gog_file" || fail "Error: gog.com executable was not found!"
 	gog_file="$(cd "$(dirname "$gog_file")"; pwd)/$(basename "$gog_file")"
 	cd "$data_dir" && innoextract "$gog_file"
+	
+	# some versions of gog.com installer (or innoextract tool?) place game files inside /app directory
+	if [[ -d "$data_dir"/app ]]
+	then
+		data_dir="$data_dir"/app
+	fi
 fi

 if [[ -n "$cd1_dir" ]]
@ -248,10 +254,10 @@ fi

 if [[ -n "$validate" ]]
 then
-	test -f "$dest_dir"/Data/H3bitmap.lod || fail "Error: Heroes 3 data files are missing!"
-	test -f "$dest_dir"/Data/H3sprite.lod || fail "Error: Heroes 3 data files are missing!"
-	test -f "$dest_dir"/Data/VIDEO.VID    || fail "Error: Heroes 3 data files (CD2) are missing!"
-	test -d "$dest_dir"/Mods/vcmi/Data    || fail "Error: VCMI data files are missing!"
+	test -f "$dest_dir"/[Dd][Aa][Tt][Aa]/H3bitmap.lod || fail "Error: Heroes 3 data files are missing!"
+	test -f "$dest_dir"/[Dd][Aa][Tt][Aa]/H3sprite.lod || fail "Error: Heroes 3 data files are missing!"
+	test -f "$dest_dir"/[Dd][Aa][Tt][Aa]/VIDEO.VID    || fail "Error: Heroes 3 data files (CD2) are missing!"
+	#test -d "$dest_dir"/Mods/vcmi/Data                || fail "Error: VCMI data files are missing!"
 fi

 rm -rf "$temp_dir"