* Moved CConfigHandler from client to lib, CMake/Makefile need updating. I believe other projects besides client also need access to settings. (surprisingly there was a "server" category used only by client... and now VCAI.)

* It is possible to set the battle ai that'll be used by neutrals by typing in VCMI console:
setBattleAI <AIName>
VCAI also respects that setting and uses given AI as its battle back-end.

AI/VCAI/VCAI.cpp

@@ -2,6 +2,7 @@
 #include "VCAI.h"
 #include "../../lib/UnlockGuard.h"
 #include "../../lib/CObjectHandler.h"
+#include "../../lib/CConfigHandler.h"
 
 #define I_AM_ELEMENTAR return CGoal(*this).setisElementar(true)
 CLogger &aiLogger = tlog6;
@@ -436,7 +437,6 @@ VCAI::VCAI(void)
 {
 	LOG_ENTRY;
 	myCb = NULL;
-	battleAIName = "StupidAI";
 	makingTurn = NULL;
 }
 
@@ -2538,6 +2538,14 @@ void VCAI::requestSent(const CPackForServer *pack, int requestID)
 	}
 }
 
+std::string VCAI::getBattleAIName() const
+{
+	if(settings["server"]["neutralAI"].getType() == JsonNode::DATA_STRING)
+		return settings["server"]["neutralAI"].String();
+	else
+		return "StupidAI";
+}
+
 AIStatus::AIStatus()
 {
 	battle = NO_BATTLE;

AI/VCAI/VCAI.h

@@ -269,8 +269,10 @@ public:
 	int3 explorationNewPoint(int radius, HeroPtr h, std::vector<std::vector<int3> > &tiles);
 	void recruitHero();
 
-	virtual void init(CCallback * CB);
-	virtual void yourTurn();
+	virtual std::string getBattleAIName() const OVERRIDE;
+
+	virtual void init(CCallback * CB) OVERRIDE;
+	virtual void yourTurn() OVERRIDE;
 
 	virtual void heroGotLevel(const CGHeroInstance *hero, int pskill, std::vector<ui16> &skills, int queryID) OVERRIDE; //pskill is gained primary skill, interface has to choose one of given skills and call callback with selection id
 	virtual void commanderGotLevel (const CCommanderInstance * commander, std::vector<ui32> skills, int queryID) OVERRIDE; //TODO

client/BattleInterface/CBattleInterface.cpp

@@ -17,7 +17,7 @@
 #include "CCreatureAnimation.h"
 #include "../Graphics.h"
 #include "../CSpellWindow.h"
-#include "../CConfigHandler.h"
+#include "../../lib/CConfigHandler.h"
 #include "../../lib/CondSh.h"
 #include "../../lib/NetPacks.h"
 #include "../CPlayerInterface.h"

client/BattleInterface/CBattleInterfaceClasses.cpp

@@ -10,7 +10,7 @@
 #include "../../CCallback.h"
 #include "../CSpellWindow.h"
 #include "../Graphics.h"
-#include "../CConfigHandler.h"
+#include "../../lib/CConfigHandler.h"
 #include "../UIFramework/CGuiHandler.h"
 #include "../UIFramework/CIntObjectClasses.h"
 #include "../../lib/CGeneralTextHandler.h"

client/CAdvmapInterface.cpp

@@ -11,7 +11,7 @@
 #include "CPlayerInterface.h"
 #include "UIFramework/SDL_Extensions.h"
 #include "CBitmapHandler.h"
-#include "CConfigHandler.h"
+#include "../lib/CConfigHandler.h"
 #include "CSpellWindow.h"
 #include "Graphics.h"
 #include "CDefHandler.h"

client/CCreatureWindow.cpp

@@ -13,7 +13,7 @@
 #include "CDefHandler.h"
 #include "Graphics.h"
 #include "CPlayerInterface.h"
-#include "CConfigHandler.h"
+#include "../lib/CConfigHandler.h"
 #include "CAnimation.h"
 
 #include "../lib/CGameState.h"

client/CHeroWindow.cpp

@@ -13,7 +13,7 @@
 #include "CBitmapHandler.h"
 #include "Graphics.h"
 #include "CSpellWindow.h"
-#include "CConfigHandler.h"
+#include "../lib/CConfigHandler.h"
 #include "CPlayerInterface.h"
 
 #include "../lib/CArtHandler.h"

client/CKingdomInterface.cpp

@@ -11,7 +11,7 @@
 #include "CAnimation.h" //CAnimImage
 #include "CAdvmapInterface.h" //CResDataBar
 #include "CCastleInterface.h" //various town-specific classes
-#include "CConfigHandler.h"
+#include "../lib/CConfigHandler.h"
 #include "CGameInfo.h"
 #include "CPlayerInterface.h" //LOCPLINT
 #include "UIFramework/CGuiHandler.h"

client/CMT.cpp

@@ -27,7 +27,7 @@
 #include "../lib/CGeneralTextHandler.h"
 #include "Graphics.h"
 #include "Client.h"
-#include "CConfigHandler.h"
+#include "../lib/CConfigHandler.h"
 #include "../lib/Connection.h"
 #include "../lib/VCMI_Lib.h"
 #include "../lib/VCMIDirs.h"
@@ -595,6 +595,23 @@ void processCommand(const std::string &message)
 		if(mxname == "pim" && LOCPLINT)
 			LOCPLINT->pim->unlock();
 	}
+	else if(cn == "setBattleAI")
+	{
+		std::string fname;
+		readed >> fname;
+		tlog0 << "Will try loading that AI to see if it is correct name...\n";
+		if(auto ai = CDynLibHandler::getNewBattleAI(fname)) //test that given AI is indeed available... heavy but it is easy to make a typo and break the game
+		{
+			delete ai;
+			Settings neutralAI = settings.write["server"]["neutralAI"];
+			neutralAI->String() = fname;
+			tlog0 << "Setting changed, from now the battle ai will be " << fname << "!\n";
+		}
+		else
+		{
+			tlog3 << "Setting not changes, no such AI found!\n";
+		}
+	}
 	else if(client && client->serv && client->serv->connected && LOCPLINT) //send to server
 	{
 		boost::unique_lock<boost::recursive_mutex> un(*LOCPLINT->pim);

client/CMessage.cpp

@@ -9,7 +9,7 @@
 #include "../lib/CGeneralTextHandler.h"
 #include "Graphics.h"
 #include "GUIClasses.h"
-#include "CConfigHandler.h"
+#include "../lib/CConfigHandler.h"
 #include "CBitmapHandler.h"
 #include "UIFramework/CIntObjectClasses.h"
 

client/CMusicHandler.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#include "CConfigHandler.h"
+#include "../lib/CConfigHandler.h"
 #include "CSoundBase.h"
 #include "../lib/CCreatureHandler.h"
 

client/CPlayerInterface.cpp

@@ -15,7 +15,7 @@
 #include "CPlayerInterface.h"
 //#include "UIFramework/SDL_Extensions.h"
 #include "UIFramework/SDL_Extensions.h"
-#include "CConfigHandler.h"
+#include "../lib/CConfigHandler.h"
 #include "BattleInterface/CCreatureAnimation.h"
 #include "Graphics.h"
 #include "../lib/CArtHandler.h"

client/CPreGame.cpp

@@ -37,7 +37,7 @@
 #include "../lib/NetPacks.h"
 #include "../lib/RegisterTypes.h"
 #include "../lib/CThreadHelper.h"
-#include "CConfigHandler.h"
+#include "../lib/CConfigHandler.h"
 #include "../lib/GameConstants.h"
 #include "UIFramework/CGuiHandler.h"
 #include "UIFramework/CIntObjectClasses.h"

client/CQuestLog.cpp

@@ -11,7 +11,7 @@
 #include "CDefHandler.h"
 #include "Graphics.h"
 #include "CPlayerInterface.h"
-#include "CConfigHandler.h"
+#include "../lib/CConfigHandler.h"
 
 #include "../lib/CGameState.h"
 #include "../lib/CArtHandler.h"

client/Client.cpp

@@ -26,7 +26,7 @@
 #include "../lib/map.h"
 #include "../lib/JsonNode.h"
 #include "mapHandler.h"
-#include "CConfigHandler.h"
+#include "../lib/CConfigHandler.h"
 #include "Client.h"
 #include "CPreGame.h"
 #include "BattleInterface/CBattleInterface.h"

client/GUIClasses.cpp

@@ -12,8 +12,7 @@
 #include "CGameInfo.h"
 #include "CHeroWindow.h"
 #include "CMessage.h"
-#include "CConfigHandler.h"
-#include "CConfigHandler.h"
+#include "../lib/CConfigHandler.h"
 #include "BattleInterface/CCreatureAnimation.h"
 #include "CPlayerInterface.h"
 #include "Graphics.h"

client/NetPacksClient.cpp

@@ -19,7 +19,7 @@
 #include "CSoundBase.h"
 #include "mapHandler.h"
 #include "GUIClasses.h"
-#include "CConfigHandler.h"
+#include "../lib/CConfigHandler.h"
 #include "UIFramework/SDL_Extensions.h"
 #include "BattleInterface/CBattleInterface.h"
 #include "../lib/CCampaignHandler.h"

client/UIFramework/CGuiHandler.cpp

@@ -6,7 +6,7 @@
 #include "../CGameInfo.h"
 #include "CCursorHandler.h"
 #include "../../lib/CThreadHelper.h"
-#include "../CConfigHandler.h"
+#include "../../lib/CConfigHandler.h"
 
 extern SDL_Surface * screenBuf, * screen2, * screen;
 extern std::queue<SDL_Event> events;

client/UIFramework/CIntObjectClasses.cpp

@@ -9,7 +9,7 @@
 #include "CCursorHandler.h"
 #include "../CGameInfo.h"
 #include "../../CCallback.h"
-#include "../CConfigHandler.h"
+#include "../../lib/CConfigHandler.h"
 #include "../BattleInterface/CBattleInterface.h"
 #include "../BattleInterface/CBattleInterfaceClasses.h"
 #include "../CPlayerInterface.h"

client/VCMI_client.vcxproj

@@ -235,7 +235,6 @@
     <ClCompile Include="..\CCallback.cpp" />
     <ClCompile Include="CBitmapHandler.cpp" />
     <ClCompile Include="CCastleInterface.cpp" />
-    <ClCompile Include="CConfigHandler.cpp" />
     <ClCompile Include="CCreatureWindow.cpp" />
     <ClCompile Include="CDefHandler.cpp" />
     <ClCompile Include="CGameInfo.cpp" />
@@ -280,7 +279,6 @@
     <ClInclude Include="CBitmapHandler.h" />
     <ClInclude Include="..\CCallback.h" />
     <ClInclude Include="CCastleInterface.h" />
-    <ClInclude Include="CConfigHandler.h" />
     <ClInclude Include="CCreatureWindow.h" />
     <ClInclude Include="CDefHandler.h" />
     <ClInclude Include="CGameInfo.h" />

client/VCMI_client.vcxproj.filters

@@ -11,7 +11,6 @@
     <ClCompile Include="..\CCallback.cpp" />
     <ClCompile Include="CBitmapHandler.cpp" />
     <ClCompile Include="CCastleInterface.cpp" />
-    <ClCompile Include="CConfigHandler.cpp" />
     <ClCompile Include="CCreatureWindow.cpp" />
     <ClCompile Include="CDefHandler.cpp" />
     <ClCompile Include="CGameInfo.cpp" />
@@ -50,7 +49,6 @@
     <ClInclude Include="CBitmapHandler.h" />
     <ClInclude Include="..\CCallback.h" />
     <ClInclude Include="CCastleInterface.h" />
-    <ClInclude Include="CConfigHandler.h" />
     <ClInclude Include="CCreatureWindow.h" />
     <ClInclude Include="CDefHandler.h" />
     <ClInclude Include="CGameInfo.h" />

client/mapHandler.cpp

@@ -11,7 +11,7 @@
 #include "../lib/CObjectHandler.h"
 #include "../lib/map.h"
 #include "CDefHandler.h"
-#include "CConfigHandler.h"
+#include "../lib/CConfigHandler.h"
 #include "../lib/CGeneralTextHandler.h"
 #include "../lib/GameConstants.h"
 #include "../lib/CStopWatch.h"

lib/CConfigHandler.cpp

@@ -168,9 +168,9 @@ JsonNode& Settings::operator [](std::string value)
 {
 	return node[value];
 }
-
-template struct SettingsStorage::NodeAccessor<SettingsListener>;
-template struct SettingsStorage::NodeAccessor<Settings>;
+// 
+// template DLL_LINKAGE struct SettingsStorage::NodeAccessor<SettingsListener>;
+// template DLL_LINKAGE struct SettingsStorage::NodeAccessor<Settings>;
 
 static void setButton(ButtonInfo &button, const JsonNode &g)
 {

lib/CConfigHandler.h

@@ -15,11 +15,11 @@ class Settings;
 class SettingsListener;
 
 /// Main storage of game settings
-class SettingsStorage
+class DLL_LINKAGE SettingsStorage
 {
 	//Helper struct to access specific node either via chain of operator[] or with one operator() (vector)
 	template<typename Accessor>
-	struct NodeAccessor
+	struct DLL_LINKAGE NodeAccessor
 	{
 		SettingsStorage & parent;
 		std::vector<std::string> path;
@@ -57,7 +57,7 @@ public:
 };
 
 /// Class for listening changes in specific part of configuration (e.g. change of music volume)
-class SettingsListener
+class DLL_LINKAGE SettingsListener
 {
 	SettingsStorage &parent;
 	// Path to this node
@@ -81,7 +81,7 @@ public:
 };
 
 /// System options, provides write access to config tree with auto-saving on change
-class Settings
+class DLL_LINKAGE Settings
 {
 	SettingsStorage &parent;
 	//path to this node
@@ -109,7 +109,7 @@ public:
 
 namespace config
 {
-	struct ButtonInfo
+	struct DLL_LINKAGE ButtonInfo
 	{
 		std::string defName;
 		std::vector<std::string> additionalDefs;
@@ -117,7 +117,7 @@ namespace config
 		bool playerColoured; //if true button will be colored to main player's color (works properly only for appropriate 8bpp graphics)
 	};
 	/// Struct which holds data about position of several GUI elements at the adventure map screen
-	struct AdventureMapConfig
+	struct DLL_LINKAGE AdventureMapConfig
 	{
 		//minimap properties
 		int minimapX, minimapY, minimapW, minimapH;
@@ -153,12 +153,12 @@ namespace config
 		int overviewPics, overviewSize; //pic count in def and count of visible slots
 		std::string overviewBg; //background name
 	};
-	struct GUIOptions
+	struct DLL_LINKAGE GUIOptions
 	{
 		AdventureMapConfig ac;
 	};
 	/// Handles adventure map screen settings
-	class CConfigHandler
+	class DLL_LINKAGE CConfigHandler
 	{
 		GUIOptions *current; // pointer to current gui options
 
@@ -176,5 +176,10 @@ namespace config
 	};
 }
 
-extern SettingsStorage settings;
-extern config::CConfigHandler conf;
+extern DLL_LINKAGE SettingsStorage settings;
+extern DLL_LINKAGE config::CConfigHandler conf;
+
+// Force instantiation of the SettingsStorage::NodeAccessor class template.
+// That way method definitions can sit in the cpp file
+template struct SettingsStorage::NodeAccessor<SettingsListener>;
+template struct SettingsStorage::NodeAccessor<Settings>;

lib/CGameInterface.cpp

@@ -127,7 +127,7 @@ void CAdventureAI::battleStart(const CCreatureSet *army1, const CCreatureSet *ar
 {
 	assert(!battleAI);
 	assert(cbc);
-	battleAI = CDynLibHandler::getNewBattleAI(battleAIName);
+	battleAI = CDynLibHandler::getNewBattleAI(getBattleAIName());
 	battleAI->init(cbc);
 	battleAI->battleStart(army1, army2, tile, hero1, hero2, side);
 }

lib/CGameInterface.h

@@ -111,12 +111,12 @@ class DLL_LINKAGE CAdventureAI : public CGlobalAI
 {
 public:
 	CAdventureAI() : battleAI(NULL), cbc(NULL) {};
-	CAdventureAI(const std::string &BattleAIName) : battleAIName(BattleAIName), battleAI(NULL), cbc(NULL) {};
 
-	std::string battleAIName;
 	CBattleGameInterface *battleAI;
 	CBattleCallback *cbc;
 
+	virtual std::string getBattleAIName() const = 0; //has to return name of the battle AI to be used
+
 	//battle interface
 	virtual BattleAction activeStack(const CStack * stack);
 	virtual void yourTacticPhase(int distance);

lib/Connection.h

@@ -12,6 +12,7 @@
 #include <boost/type_traits/remove_pointer.hpp>
 #include <boost/type_traits/remove_const.hpp>
 
+
 #include <boost/variant.hpp>
 #include <boost/mpl/eval_if.hpp>
 #include <boost/mpl/equal_to.hpp>
@@ -24,7 +25,7 @@
 #include "CObjectHandler.h" //for CArmedInstance
 #include "CCampaignHandler.h" //for CCampaignState
 
-const ui32 version = 732;
+const ui32 version = 733;
 const TSlot COMMANDER_SLOT_PLACEHOLDER = -2;
 
 class CConnection;

lib/VCMI_lib.vcxproj

@@ -226,6 +226,7 @@
     <ClCompile Include="CArtHandler.cpp" />
     <ClCompile Include="CBuildingHandler.cpp" />
     <ClCompile Include="CCampaignHandler.cpp" />
+    <ClCompile Include="CConfigHandler.cpp" />
     <ClCompile Include="CConsoleHandler.cpp" />
     <ClCompile Include="CCreatureHandler.cpp" />
     <ClCompile Include="CCreatureSet.cpp" />
@@ -278,6 +279,7 @@
     <ClInclude Include="CArtHandler.h" />
     <ClInclude Include="CBuildingHandler.h" />
     <ClInclude Include="CCampaignHandler.h" />
+    <ClInclude Include="CConfigHandler.h" />
     <ClInclude Include="CConsoleHandler.h" />
     <ClInclude Include="CCreatureHandler.h" />
     <ClInclude Include="CCreatureSet.h" />