C++11 cleanup on constructors (#6000)

* C++11 cleanup on constructors dir script

22 files changed, 61 insertions, 96 deletions

diff --git a/src/script/cpp_api/s_async.cpp b/src/script/cpp_api/s_async.cpp
index 722359066..5cca5fc03 100644
--- a/src/script/cpp_api/s_async.cpp
+++ b/src/script/cpp_api/s_async.cpp
@@ -34,13 +34,6 @@ extern "C" {
 #include "common/c_internal.h"
 
 /******************************************************************************/
-AsyncEngine::AsyncEngine() :
-	initDone(false),
-	jobIdCounter(0)
-{
-}
-
-/******************************************************************************/
 AsyncEngine::~AsyncEngine()
 {
 
diff --git a/src/script/cpp_api/s_async.h b/src/script/cpp_api/s_async.h
index 45f935d0a..94b55db6e 100644
--- a/src/script/cpp_api/s_async.h
+++ b/src/script/cpp_api/s_async.h
@@ -39,24 +39,18 @@ class AsyncEngine;
 // Data required to queue a job
 struct LuaJobInfo
 {
-	LuaJobInfo() :
-		serializedFunction(""),
-		serializedParams(""),
-		serializedResult(""),
-		id(0),
-		valid(false)
-	{}
+	LuaJobInfo() {};
 
 	// Function to be called in async environment
-	std::string serializedFunction;
+	std::string serializedFunction = "";
 	// Parameter to be passed to function
-	std::string serializedParams;
+	std::string serializedParams = "";
 	// Result of function call
-	std::string serializedResult;
+	std::string serializedResult = "";
 	// JobID used to identify a job and match it to callback
-	unsigned int id;
+	unsigned int id = 0;
 
-	bool valid;
+	bool valid = false;
 };
 
 // Asynchronous working environment
@@ -68,7 +62,7 @@ public:
 	void *run();
 
 private:
-	AsyncEngine *jobDispatcher;
+	AsyncEngine *jobDispatcher = nullptr;
 };
 
 // Asynchornous thread and job management
@@ -76,7 +70,7 @@ class AsyncEngine {
 	friend class AsyncWorkerThread;
 	typedef void (*StateInitializer)(lua_State *L, int top);
 public:
-	AsyncEngine();
+	AsyncEngine() {};
 	~AsyncEngine();
 
 	/**
@@ -137,13 +131,13 @@ protected:
 
 private:
 	// Variable locking the engine against further modification
-	bool initDone;
+	bool initDone = false;
 
 	// Internal store for registred state initializers
 	std::vector<StateInitializer> stateInitializers;
 
 	// Internal counter to create job IDs
-	unsigned int jobIdCounter;
+	unsigned int jobIdCounter = 0;
 
 	// Mutex to protect job queue
 	std::mutex jobQueueMutex;
diff --git a/src/script/cpp_api/s_base.cpp b/src/script/cpp_api/s_base.cpp
index 4d7461c5b..aaf26a9c3 100644
--- a/src/script/cpp_api/s_base.cpp
+++ b/src/script/cpp_api/s_base.cpp
@@ -71,9 +71,7 @@ public:
 	ScriptApiBase
 */
 
-ScriptApiBase::ScriptApiBase() :
-	m_luastackmutex(),
-	m_gamedef(NULL)
+ScriptApiBase::ScriptApiBase()
 {
 #ifdef SCRIPTAPI_LOCK_DEBUG
 	m_lock_recursion_count = 0;
@@ -111,14 +109,6 @@ ScriptApiBase::ScriptApiBase() :
 
 	lua_pushstring(m_luastack, porting::getPlatformName());
 	lua_setglobal(m_luastack, "PLATFORM");
-
-	// m_secure gets set to true inside
-	// ScriptApiSecurity::initializeSecurity(), if neccessary.
-	// Default to false otherwise
-	m_secure = false;
-
-	m_environment = NULL;
-	m_guiengine = NULL;
 }
 
 ScriptApiBase::~ScriptApiBase()
diff --git a/src/script/cpp_api/s_base.h b/src/script/cpp_api/s_base.h
index ed056db31..38ee9901b 100644
--- a/src/script/cpp_api/s_base.h
+++ b/src/script/cpp_api/s_base.h
@@ -119,7 +119,7 @@ protected:
 
 	std::recursive_mutex m_luastackmutex;
 	std::string     m_last_run_mod;
-	bool            m_secure;
+	bool            m_secure = false;
 #ifdef SCRIPTAPI_LOCK_DEBUG
 	int             m_lock_recursion_count;
 	std::thread::id m_owning_thread;
@@ -128,11 +128,11 @@ protected:
 private:
 	static int luaPanic(lua_State *L);
 
-	lua_State*      m_luastack;
+	lua_State      *m_luastack = nullptr;
 
-	IGameDef*       m_gamedef;
-	Environment*    m_environment;
-	GUIEngine*      m_guiengine;
+	IGameDef       *m_gamedef = nullptr;
+	Environment    *m_environment = nullptr;
+	GUIEngine      *m_guiengine = nullptr;
 };
 
 #endif /* S_BASE_H_ */
diff --git a/src/script/lua_api/l_areastore.cpp b/src/script/lua_api/l_areastore.cpp
index b81985a7f..1e30e704e 100644
--- a/src/script/lua_api/l_areastore.cpp
+++ b/src/script/lua_api/l_areastore.cpp
@@ -300,20 +300,19 @@ int LuaAreaStore::l_from_file(lua_State *L)
 	return deserialization_helper(L, o->as, is);
 }
 
-LuaAreaStore::LuaAreaStore()
+LuaAreaStore::LuaAreaStore() : as(AreaStore::getOptimalImplementation())
 {
-	this->as = AreaStore::getOptimalImplementation();
 }
 
 LuaAreaStore::LuaAreaStore(const std::string &type)
 {
 #if USE_SPATIAL
 	if (type == "LibSpatial") {
-		this->as = new SpatialAreaStore();
+		as = new SpatialAreaStore();
 	} else
 #endif
 	{
-		this->as = new VectorAreaStore();
+		as = new VectorAreaStore();
 	}
 }
 
diff --git a/src/script/lua_api/l_areastore.h b/src/script/lua_api/l_areastore.h
index 8292e7712..9cb6249d0 100644
--- a/src/script/lua_api/l_areastore.h
+++ b/src/script/lua_api/l_areastore.h
@@ -49,7 +49,7 @@ private:
 	static int l_from_file(lua_State *L);
 
 public:
-	AreaStore *as;
+	AreaStore *as = nullptr;
 
 	LuaAreaStore();
 	LuaAreaStore(const std::string &type);
diff --git a/src/script/lua_api/l_camera.cpp b/src/script/lua_api/l_camera.cpp
index 862384198..ef842a222 100644
--- a/src/script/lua_api/l_camera.cpp
+++ b/src/script/lua_api/l_camera.cpp
@@ -4,9 +4,8 @@
 #include "content_cao.h"
 #include "camera.h"
 
-LuaCamera::LuaCamera(Camera *m)
+LuaCamera::LuaCamera(Camera *m) : m_camera(m)
 {
-	m_camera = m;
 }
 
 void LuaCamera::create(lua_State *L, Camera *m)
diff --git a/src/script/lua_api/l_camera.h b/src/script/lua_api/l_camera.h
index 04921ad03..c4a0f877c 100644
--- a/src/script/lua_api/l_camera.h
+++ b/src/script/lua_api/l_camera.h
@@ -26,7 +26,7 @@ private:
 	static int l_get_look_horizontal(lua_State *L);
 	static int l_get_aspect_ratio(lua_State *L);
 
-	Camera *m_camera;
+	Camera *m_camera = nullptr;
 
 public:
 	LuaCamera(Camera *m);
diff --git a/src/script/lua_api/l_itemstackmeta.h b/src/script/lua_api/l_itemstackmeta.h
index 4ef64a91e..6e841d2dc 100644
--- a/src/script/lua_api/l_itemstackmeta.h
+++ b/src/script/lua_api/l_itemstackmeta.h
@@ -28,7 +28,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 class ItemStackMetaRef : public MetaDataRef
 {
 private:
-	ItemStack *istack;
+	ItemStack *istack = nullptr;
 
 	static const char className[];
 	static const luaL_Reg methods[];
diff --git a/src/script/lua_api/l_localplayer.cpp b/src/script/lua_api/l_localplayer.cpp
index 7ec4eaa62..7f932cbca 100644
--- a/src/script/lua_api/l_localplayer.cpp
+++ b/src/script/lua_api/l_localplayer.cpp
@@ -21,9 +21,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "l_internal.h"
 #include "script/common/c_converter.h"
 
-LuaLocalPlayer::LuaLocalPlayer(LocalPlayer *m)
+LuaLocalPlayer::LuaLocalPlayer(LocalPlayer *m) : m_localplayer(m)
 {
-	m_localplayer = m;
 }
 
 void LuaLocalPlayer::create(lua_State *L, LocalPlayer *m)
diff --git a/src/script/lua_api/l_localplayer.h b/src/script/lua_api/l_localplayer.h
index e56ec808f..e618e6be5 100644
--- a/src/script/lua_api/l_localplayer.h
+++ b/src/script/lua_api/l_localplayer.h
@@ -67,7 +67,7 @@ private:
 
 	static int l_get_movement(lua_State *L);
 
-	LocalPlayer *m_localplayer;
+	LocalPlayer *m_localplayer = nullptr;
 
 public:
 	LuaLocalPlayer(LocalPlayer *m);
diff --git a/src/script/lua_api/l_minimap.cpp b/src/script/lua_api/l_minimap.cpp
index afb3766fb..be981c884 100644
--- a/src/script/lua_api/l_minimap.cpp
+++ b/src/script/lua_api/l_minimap.cpp
@@ -24,9 +24,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "minimap.h"
 #include "settings.h"
 
-LuaMinimap::LuaMinimap(Minimap *m)
+LuaMinimap::LuaMinimap(Minimap *m) : m_minimap(m)
 {
-	m_minimap = m;
 }
 
 void LuaMinimap::create(lua_State *L, Minimap *m)
diff --git a/src/script/lua_api/l_minimap.h b/src/script/lua_api/l_minimap.h
index ba702b0b1..d4fbf6330 100644
--- a/src/script/lua_api/l_minimap.h
+++ b/src/script/lua_api/l_minimap.h
@@ -48,7 +48,7 @@ private:
 	static int l_set_shape(lua_State *L);
 	static int l_get_shape(lua_State *L);
 
-	Minimap *m_minimap;
+	Minimap *m_minimap = nullptr;
 
 public:
 	LuaMinimap(Minimap *m);
diff --git a/src/script/lua_api/l_nodemeta.cpp b/src/script/lua_api/l_nodemeta.cpp
index 5dfa6d52e..aa8d1c453 100644
--- a/src/script/lua_api/l_nodemeta.cpp
+++ b/src/script/lua_api/l_nodemeta.cpp
@@ -171,14 +171,12 @@ bool NodeMetaRef::handleFromTable(lua_State *L, int table, Metadata *_meta)
 
 NodeMetaRef::NodeMetaRef(v3s16 p, ServerEnvironment *env):
 	m_p(p),
-	m_env(env),
-	m_is_local(false)
+	m_env(env)
 {
 }
 
 NodeMetaRef::NodeMetaRef(Metadata *meta):
-	m_meta(meta),
-	m_is_local(true)
+	m_meta(meta)
 {
 }
 
diff --git a/src/script/lua_api/l_nodemeta.h b/src/script/lua_api/l_nodemeta.h
index dd4260ff9..72d26ef36 100644
--- a/src/script/lua_api/l_nodemeta.h
+++ b/src/script/lua_api/l_nodemeta.h
@@ -34,9 +34,9 @@ class NodeMetadata;
 class NodeMetaRef : public MetaDataRef {
 private:
 	v3s16 m_p;
-	ServerEnvironment *m_env;
-	Metadata *m_meta;
-	bool m_is_local;
+	ServerEnvironment *m_env = nullptr;
+	Metadata *m_meta = nullptr;
+	bool m_is_local = false;
 
 	static const char className[];
 	static const luaL_Reg methodsServer[];
diff --git a/src/script/lua_api/l_nodetimer.h b/src/script/lua_api/l_nodetimer.h
index ae362d8b3..df77ed98f 100644
--- a/src/script/lua_api/l_nodetimer.h
+++ b/src/script/lua_api/l_nodetimer.h
@@ -29,7 +29,7 @@ class NodeTimerRef : public ModApiBase
 {
 private:
 	v3s16 m_p;
-	ServerEnvironment *m_env;
+	ServerEnvironment *m_env = nullptr;
 
 	static const char className[];
 	static const luaL_Reg methods[];
diff --git a/src/script/lua_api/l_object.h b/src/script/lua_api/l_object.h
index 9801ce02b..77874f00c 100644
--- a/src/script/lua_api/l_object.h
+++ b/src/script/lua_api/l_object.h
@@ -33,16 +33,29 @@ class RemotePlayer;
 */
 
 class ObjectRef : public ModApiBase {
-private:
-	ServerActiveObject *m_object;
-
-	static const char className[];
-	static const luaL_Reg methods[];
 public:
+	ObjectRef(ServerActiveObject *object);
+
+	~ObjectRef();
+
+	// Creates an ObjectRef and leaves it on top of stack
+	// Not callable from Lua; all references are created on the C side.
+	static void create(lua_State *L, ServerActiveObject *object);
+
+	static void set_null(lua_State *L);
+
+	static void Register(lua_State *L);
+
 	static ObjectRef *checkobject(lua_State *L, int narg);
 
 	static ServerActiveObject* getobject(ObjectRef *ref);
 private:
+	ServerActiveObject *m_object = nullptr;
+
+	static const char className[];
+	static const luaL_Reg methods[];
+
+
 	static LuaEntitySAO* getluaobject(ObjectRef *ref);
 
 	static PlayerSAO* getplayersao(ObjectRef *ref);
@@ -319,18 +332,6 @@ private:
 	// get_nametag_attributes(self)
 	static int l_get_nametag_attributes(lua_State *L);
 
-public:
-	ObjectRef(ServerActiveObject *object);
-
-	~ObjectRef();
-
-	// Creates an ObjectRef and leaves it on top of stack
-	// Not callable from Lua; all references are created on the C side.
-	static void create(lua_State *L, ServerActiveObject *object);
-
-	static void set_null(lua_State *L);
-
-	static void Register(lua_State *L);
 };
 
 #endif /* L_OBJECT_H_ */
diff --git a/src/script/lua_api/l_settings.cpp b/src/script/lua_api/l_settings.cpp
index 70807f3d2..3dc5c9574 100644
--- a/src/script/lua_api/l_settings.cpp
+++ b/src/script/lua_api/l_settings.cpp
@@ -32,9 +32,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 LuaSettings::LuaSettings(Settings *settings, const std::string &filename) :
 	m_settings(settings),
-	m_filename(filename),
-	m_is_own_settings(false),
-	m_write_allowed(true)
+	m_filename(filename)
 {
 }
 
diff --git a/src/script/lua_api/l_settings.h b/src/script/lua_api/l_settings.h
index 54b003ab3..a664b4494 100644
--- a/src/script/lua_api/l_settings.h
+++ b/src/script/lua_api/l_settings.h
@@ -57,10 +57,10 @@ private:
 	// to_table(self) -> {[key1]=value1,...}
 	static int l_to_table(lua_State *L);
 
-	Settings *m_settings;
+	Settings *m_settings = nullptr;
 	std::string m_filename;
-	bool m_is_own_settings;
-	bool m_write_allowed;
+	bool m_is_own_settings = false;
+	bool m_write_allowed = true;
 
 public:
 	LuaSettings(Settings *settings, const std::string &filename);
diff --git a/src/script/lua_api/l_storage.h b/src/script/lua_api/l_storage.h
index ec6f8d941..eaf7ec9f6 100644
--- a/src/script/lua_api/l_storage.h
+++ b/src/script/lua_api/l_storage.h
@@ -38,7 +38,7 @@ public:
 class StorageRef : public MetaDataRef
 {
 private:
-	ModMetadata *m_object;
+	ModMetadata *m_object = nullptr;
 
 	static const char className[];
 	static const luaL_Reg methods[];
diff --git a/src/script/lua_api/l_vmanip.cpp b/src/script/lua_api/l_vmanip.cpp
index 254a7e5a6..ed5042bcf 100644
--- a/src/script/lua_api/l_vmanip.cpp
+++ b/src/script/lua_api/l_vmanip.cpp
@@ -365,22 +365,17 @@ int LuaVoxelManip::l_get_emerged_area(lua_State *L)
 	return 2;
 }
 
-LuaVoxelManip::LuaVoxelManip(MMVManip *mmvm, bool is_mg_vm)
+LuaVoxelManip::LuaVoxelManip(MMVManip *mmvm, bool is_mg_vm) : vm(mmvm), is_mapgen_vm(is_mg_vm)
 {
-	this->vm           = mmvm;
-	this->is_mapgen_vm = is_mg_vm;
 }
 
-LuaVoxelManip::LuaVoxelManip(Map *map)
+LuaVoxelManip::LuaVoxelManip(Map *map) : vm(new MMVManip(map))
 {
-	this->vm = new MMVManip(map);
-	this->is_mapgen_vm = false;
 }
 
 LuaVoxelManip::LuaVoxelManip(Map *map, v3s16 p1, v3s16 p2)
 {
-	this->vm = new MMVManip(map);
-	this->is_mapgen_vm = false;
+	vm = new MMVManip(map);
 
 	v3s16 bp1 = getNodeBlockPos(p1);
 	v3s16 bp2 = getNodeBlockPos(p2);
diff --git a/src/script/lua_api/l_vmanip.h b/src/script/lua_api/l_vmanip.h
index b6a69f36a..e706f3727 100644
--- a/src/script/lua_api/l_vmanip.h
+++ b/src/script/lua_api/l_vmanip.h
@@ -35,7 +35,7 @@ class LuaVoxelManip : public ModApiBase
 {
 private:
 	std::map<v3s16, MapBlock *> modified_blocks;
-	bool is_mapgen_vm;
+	bool is_mapgen_vm = false;
 
 	static const char className[];
 	static const luaL_Reg methods[];
@@ -65,7 +65,7 @@ private:
 	static int l_get_emerged_area(lua_State *L);
 
 public:
-	MMVManip *vm;
+	MMVManip *vm = nullptr;
 
 	LuaVoxelManip(MMVManip *mmvm, bool is_mapgen_vm);
 	LuaVoxelManip(Map *map, v3s16 p1, v3s16 p2);