Remove unused functions reported by cppcheck (#10463)

Run unused functions reported by cppcheck

This change removes a few (but not all) unused functions.
Some unused helper functions were not removed due to their complexity and potential of future use.

29 files changed, 13 insertions, 439 deletions

diff --git a/src/chat.cpp b/src/chat.cpp
index c3ed59804..2f65e68b3 100644
--- a/src/chat.cpp
+++ b/src/chat.cpp
@@ -123,14 +123,14 @@ void ChatBuffer::deleteByAge(f32 maxAge)
 	deleteOldest(count);
 }
 
-u32 ChatBuffer::getColumns() const
+u32 ChatBuffer::getRows() const
 {
-	return m_cols;
+	return m_rows;
 }
 
-u32 ChatBuffer::getRows() const
+void ChatBuffer::scrollTop()
 {
-	return m_rows;
+	m_scroll = getTopScrollPos();
 }
 
 void ChatBuffer::reformat(u32 cols, u32 rows)
@@ -220,11 +220,6 @@ void ChatBuffer::scrollBottom()
 	m_scroll = getBottomScrollPos();
 }
 
-void ChatBuffer::scrollTop()
-{
-	m_scroll = getTopScrollPos();
-}
-
 u32 ChatBuffer::formatChatLine(const ChatLine& line, u32 cols,
 		std::vector<ChatFormattedLine>& destination) const
 {
diff --git a/src/chat.h b/src/chat.h
index f84ece206..0b98e4d3c 100644
--- a/src/chat.h
+++ b/src/chat.h
@@ -94,8 +94,6 @@ public:
 	// Delete lines older than maxAge.
 	void deleteByAge(f32 maxAge);
 
-	// Get number of columns, 0 if reformat has not been called yet.
-	u32 getColumns() const;
 	// Get number of rows, 0 if reformat has not been called yet.
 	u32 getRows() const;
 	// Update console size and reformat all formatted lines.
diff --git a/src/client/client.cpp b/src/client/client.cpp
index 7fafe0da9..0bd98b256 100644
--- a/src/client/client.cpp
+++ b/src/client/client.cpp
@@ -1665,11 +1665,6 @@ ClientEvent *Client::getClientEvent()
 	return event;
 }
 
-bool Client::connectedToServer()
-{
-	return m_con->Connected();
-}
-
 const Address Client::getServerAddress()
 {
 	return m_con->GetPeerAddress(PEER_ID_SERVER);
diff --git a/src/client/client.h b/src/client/client.h
index 8f4aac6e3..bffdc7ec6 100644
--- a/src/client/client.h
+++ b/src/client/client.h
@@ -338,7 +338,6 @@ public:
 	u16 getProtoVersion()
 	{ return m_proto_ver; }
 
-	bool connectedToServer();
 	void confirmRegistration();
 	bool m_is_registration_confirmation_state = false;
 	bool m_simple_singleplayer_mode;
diff --git a/src/client/clientenvironment.cpp b/src/client/clientenvironment.cpp
index 0b7e92325..f831978a8 100644
--- a/src/client/clientenvironment.cpp
+++ b/src/client/clientenvironment.cpp
@@ -368,21 +368,6 @@ bool isFreeClientActiveObjectId(const u16 id,
 
 }
 
-u16 getFreeClientActiveObjectId(ClientActiveObjectMap &objects)
-{
-	// try to reuse id's as late as possible
-	static u16 last_used_id = 0;
-	u16 startid = last_used_id;
-	for(;;) {
-		last_used_id ++;
-		if (isFreeClientActiveObjectId(last_used_id, objects))
-			return last_used_id;
-
-		if (last_used_id == startid)
-			return 0;
-	}
-}
-
 u16 ClientEnvironment::addActiveObject(ClientActiveObject *object)
 {
 	// Register object. If failed return zero id
diff --git a/src/client/clientmap.cpp b/src/client/clientmap.cpp
index 3e4ab2e94..3124313e7 100644
--- a/src/client/clientmap.cpp
+++ b/src/client/clientmap.cpp
@@ -36,7 +36,7 @@ ClientMap::ClientMap(
 		MapDrawControl &control,
 		s32 id
 ):
-	Map(dout_client, client),
+	Map(client),
 	scene::ISceneNode(RenderingEngine::get_scene_manager()->getRootSceneNode(),
 		RenderingEngine::get_scene_manager(), id),
 	m_client(client),
diff --git a/src/client/mapblock_mesh.cpp b/src/client/mapblock_mesh.cpp
index b59679523..f9332e399 100644
--- a/src/client/mapblock_mesh.cpp
+++ b/src/client/mapblock_mesh.cpp
@@ -81,33 +81,6 @@ void MeshMakeData::fill(MapBlock *block)
 	}
 }
 
-void MeshMakeData::fillSingleNode(MapNode *node)
-{
-	m_blockpos = v3s16(0,0,0);
-
-	v3s16 blockpos_nodes = v3s16(0,0,0);
-	VoxelArea area(blockpos_nodes-v3s16(1,1,1)*MAP_BLOCKSIZE,
-			blockpos_nodes+v3s16(1,1,1)*MAP_BLOCKSIZE*2-v3s16(1,1,1));
-	s32 volume = area.getVolume();
-	s32 our_node_index = area.index(1,1,1);
-
-	// Allocate this block + neighbors
-	m_vmanip.clear();
-	m_vmanip.addArea(area);
-
-	// Fill in data
-	MapNode *data = new MapNode[volume];
-	for(s32 i = 0; i < volume; i++)
-	{
-		if (i == our_node_index)
-			data[i] = *node;
-		else
-			data[i] = MapNode(CONTENT_AIR, LIGHT_MAX, 0);
-	}
-	m_vmanip.copyFrom(data, area, area.MinEdge, area.MinEdge, area.getExtent());
-	delete[] data;
-}
-
 void MeshMakeData::setCrack(int crack_level, v3s16 crack_pos)
 {
 	if (crack_level >= 0)
diff --git a/src/client/mapblock_mesh.h b/src/client/mapblock_mesh.h
index 6af23a656..f8aed40dc 100644
--- a/src/client/mapblock_mesh.h
+++ b/src/client/mapblock_mesh.h
@@ -63,11 +63,6 @@ struct MeshMakeData
 	void fill(MapBlock *block);
 
 	/*
-		Set up with only a single node at (1,1,1)
-	*/
-	void fillSingleNode(MapNode *node);
-
-	/*
 		Set the (node) position of a crack
 	*/
 	void setCrack(int crack_level, v3s16 crack_pos);
diff --git a/src/content/CMakeLists.txt b/src/content/CMakeLists.txt
index 5adcf6b1e..6dd049418 100644
--- a/src/content/CMakeLists.txt
+++ b/src/content/CMakeLists.txt
@@ -1,6 +1,5 @@
 set(content_SRCS
 	${CMAKE_CURRENT_SOURCE_DIR}/content.cpp
-	${CMAKE_CURRENT_SOURCE_DIR}/packages.cpp
 	${CMAKE_CURRENT_SOURCE_DIR}/mods.cpp
 	${CMAKE_CURRENT_SOURCE_DIR}/subgames.cpp
 	PARENT_SCOPE
diff --git a/src/content/packages.cpp b/src/content/packages.cpp
deleted file mode 100644
index 2d488eb76..000000000
--- a/src/content/packages.cpp
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
-Minetest
-Copyright (C) 2018 rubenwardy <rw@rubenwardy.com>
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU Lesser General Public License as published by
-the Free Software Foundation; either version 2.1 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU Lesser General Public License for more details.
-
-You should have received a copy of the GNU Lesser General Public License along
-with this program; if not, write to the Free Software Foundation, Inc.,
-51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#include "content/packages.h"
-#include "log.h"
-#include "filesys.h"
-#include "porting.h"
-#include "settings.h"
-#include "content/mods.h"
-#include "content/subgames.h"
-
-std::string Package::getDownloadURL(const std::string &baseURL) const
-{
-	return baseURL + "/packages/" + author + "/" + name + "/releases/" +
-	       std::to_string(release) + "/download/";
-}
-
-#if USE_CURL
-std::vector<Package> getPackagesFromURL(const std::string &url)
-{
-	std::vector<std::string> extra_headers;
-	extra_headers.emplace_back("Accept: application/json");
-
-	Json::Value json = fetchJsonValue(url, &extra_headers);
-	if (!json.isArray()) {
-		errorstream << "Invalid JSON download " << std::endl;
-		return std::vector<Package>();
-	}
-
-	std::vector<Package> packages;
-
-	// Note: `unsigned int` is required to index JSON
-	for (unsigned int i = 0; i < json.size(); ++i) {
-		Package package;
-
-		package.author = json[i]["author"].asString();
-		package.name = json[i]["name"].asString();
-		package.title = json[i]["title"].asString();
-		package.type = json[i]["type"].asString();
-		package.shortDesc = json[i]["shortDesc"].asString();
-		package.release = json[i]["release"].asInt();
-		if (json[i].isMember("thumbnail"))
-			package.thumbnail = json[i]["thumbnail"].asString();
-
-		if (package.valid())
-			packages.push_back(package);
-		else
-			errorstream << "Invalid package at " << i << std::endl;
-	}
-
-	return packages;
-}
-#endif
diff --git a/src/content/packages.h b/src/content/packages.h
deleted file mode 100644
index 9029475ef..000000000
--- a/src/content/packages.h
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
-Minetest
-Copyright (C) 2018 rubenwardy <rw@rubenwardy.com>
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU Lesser General Public License as published by
-the Free Software Foundation; either version 2.1 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU Lesser General Public License for more details.
-
-You should have received a copy of the GNU Lesser General Public License along
-with this program; if not, write to the Free Software Foundation, Inc.,
-51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#pragma once
-#include "config.h"
-#include "convert_json.h"
-#include "irrlichttypes.h"
-
-struct Package
-{
-	std::string author;
-	std::string name; // Technical name
-	std::string title;
-	std::string type; // One of "mod", "game", or "txp"
-
-	std::string shortDesc;
-	u32 release;
-	std::string thumbnail;
-
-	bool valid() const
-	{
-		return !(author.empty() || name.empty() || title.empty() ||
-				type.empty() || release <= 0);
-	}
-
-	std::string getDownloadURL(const std::string &baseURL) const;
-};
-
-#if USE_CURL
-std::vector<Package> getPackagesFromURL(const std::string &url);
-#else
-inline std::vector<Package> getPackagesFromURL(const std::string &url)
-{
-	return std::vector<Package>();
-}
-#endif
diff --git a/src/gui/guiChatConsole.cpp b/src/gui/guiChatConsole.cpp
index 575c6ab25..ef471106d 100644
--- a/src/gui/guiChatConsole.cpp
+++ b/src/gui/guiChatConsole.cpp
@@ -136,11 +136,6 @@ void GUIChatConsole::closeConsoleAtOnce()
 	recalculateConsolePosition();
 }
 
-f32 GUIChatConsole::getDesiredHeight() const
-{
-	return m_desired_height_fraction;
-}
-
 void GUIChatConsole::replaceAndAddToHistory(const std::wstring &line)
 {
 	ChatPrompt& prompt = m_chat_backend->getPrompt();
diff --git a/src/gui/guiChatConsole.h b/src/gui/guiChatConsole.h
index 7be40e27c..204f9f9cc 100644
--- a/src/gui/guiChatConsole.h
+++ b/src/gui/guiChatConsole.h
@@ -55,10 +55,6 @@ public:
 	// Set whether to close the console after the user presses enter.
 	void setCloseOnEnter(bool close) { m_close_on_enter = close; }
 
-	// Return the desired height (fraction of screen size)
-	// Zero if the console is closed or getting closed
-	f32 getDesiredHeight() const;
-
 	// Replace actual line when adding the actual to the history (if there is any)
 	void replaceAndAddToHistory(const std::wstring &line);
 
diff --git a/src/log.cpp b/src/log.cpp
index 54442c39b..3c61414e9 100644
--- a/src/log.cpp
+++ b/src/log.cpp
@@ -97,16 +97,7 @@ LogBuffer verbose_buf(g_logger, LL_VERBOSE);
 std::ostream *dout_con_ptr = &null_stream;
 std::ostream *derr_con_ptr = &verbosestream;
 
-// Server
-std::ostream *dout_server_ptr = &infostream;
-std::ostream *derr_server_ptr = &errorstream;
-
-#ifndef SERVER
-// Client
-std::ostream *dout_client_ptr = &infostream;
-std::ostream *derr_client_ptr = &errorstream;
-#endif
-
+// Common streams
 std::ostream rawstream(&raw_buf);
 std::ostream dstream(&none_buf);
 std::ostream errorstream(&error_buf);
diff --git a/src/log.h b/src/log.h
index 856d3479b..6ed6b1fb7 100644
--- a/src/log.h
+++ b/src/log.h
@@ -192,14 +192,8 @@ extern std::ostream null_stream;
 
 extern std::ostream *dout_con_ptr;
 extern std::ostream *derr_con_ptr;
-extern std::ostream *dout_server_ptr;
 extern std::ostream *derr_server_ptr;
 
-#ifndef SERVER
-extern std::ostream *dout_client_ptr;
-extern std::ostream *derr_client_ptr;
-#endif
-
 extern Logger g_logger;
 
 // Writes directly to all LL_NONE log outputs for g_logger with no prefix.
@@ -222,8 +216,4 @@ extern std::ostream dstream;
 
 #define dout_con (*dout_con_ptr)
 #define derr_con (*derr_con_ptr)
-#define dout_server (*dout_server_ptr)
 
-#ifndef SERVER
-	#define dout_client (*dout_client_ptr)
-#endif
diff --git a/src/map.cpp b/src/map.cpp
index b9ab7c066..ef7eddb39 100644
--- a/src/map.cpp
+++ b/src/map.cpp
@@ -62,8 +62,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 	Map
 */
 
-Map::Map(std::ostream &dout, IGameDef *gamedef):
-	m_dout(dout),
+Map::Map(IGameDef *gamedef):
 	m_gamedef(gamedef),
 	m_nodedef(gamedef->ndef())
 {
@@ -1201,7 +1200,7 @@ bool Map::isBlockOccluded(MapBlock *block, v3s16 cam_pos_nodes)
 */
 ServerMap::ServerMap(const std::string &savedir, IGameDef *gamedef,
 		EmergeManager *emerge, MetricsBackend *mb):
-	Map(dout_server, gamedef),
+	Map(gamedef),
 	settings_mgr(g_settings, savedir + DIR_DELIM + "map_meta.txt"),
 	m_emerge(emerge)
 {
@@ -1327,11 +1326,6 @@ u64 ServerMap::getSeed()
 	return getMapgenParams()->seed;
 }
 
-s16 ServerMap::getWaterLevel()
-{
-	return getMapgenParams()->water_level;
-}
-
 bool ServerMap::blockpos_over_mapgen_limit(v3s16 p)
 {
 	const s16 mapgen_limit_bp = rangelim(
@@ -1732,59 +1726,6 @@ void ServerMap::updateVManip(v3s16 pos)
 	vm->m_is_dirty = true;
 }
 
-s16 ServerMap::findGroundLevel(v2s16 p2d)
-{
-#if 0
-	/*
-		Uh, just do something random...
-	*/
-	// Find existing map from top to down
-	s16 max=63;
-	s16 min=-64;
-	v3s16 p(p2d.X, max, p2d.Y);
-	for(; p.Y>min; p.Y--)
-	{
-		MapNode n = getNodeNoEx(p);
-		if(n.getContent() != CONTENT_IGNORE)
-			break;
-	}
-	if(p.Y == min)
-		goto plan_b;
-	// If this node is not air, go to plan b
-	if(getNodeNoEx(p).getContent() != CONTENT_AIR)
-		goto plan_b;
-	// Search existing walkable and return it
-	for(; p.Y>min; p.Y--)
-	{
-		MapNode n = getNodeNoEx(p);
-		if(content_walkable(n.d) && n.getContent() != CONTENT_IGNORE)
-			return p.Y;
-	}
-
-	// Move to plan b
-plan_b:
-#endif
-
-	/*
-		Determine from map generator noise functions
-	*/
-
-	s16 level = m_emerge->getGroundLevelAtPoint(p2d);
-	return level;
-
-	//double level = base_rock_level_2d(m_seed, p2d) + AVERAGE_MUD_AMOUNT;
-	//return (s16)level;
-}
-
-void ServerMap::createDirs(const std::string &path)
-{
-	if (!fs::CreateAllDirs(path)) {
-		m_dout<<"ServerMap: Failed to create directory "
-				<<"\""<<path<<"\""<<std::endl;
-		throw BaseException("ServerMap failed to create directory");
-	}
-}
-
 void ServerMap::save(ModifiedState save_level)
 {
 	if (!m_map_saving_enabled) {
diff --git a/src/map.h b/src/map.h
index 4d9847063..b28f34db3 100644
--- a/src/map.h
+++ b/src/map.h
@@ -123,7 +123,7 @@ class Map /*: public NodeContainer*/
 {
 public:
 
-	Map(std::ostream &dout, IGameDef *gamedef);
+	Map(IGameDef *gamedef);
 	virtual ~Map();
 	DISABLE_CLASS_COPY(Map);
 
@@ -149,8 +149,6 @@ public:
 	MapSector * getSectorNoGenerateNoLock(v2s16 p2d);
 	// Same as the above (there exists no lock anymore)
 	MapSector * getSectorNoGenerate(v2s16 p2d);
-	// Gets an existing sector or creates an empty one
-	//MapSector * getSectorCreate(v2s16 p2d);
 
 	/*
 		This is overloaded by ClientMap and ServerMap to allow
@@ -269,11 +267,6 @@ public:
 	void removeNodeTimer(v3s16 p);
 
 	/*
-		Misc.
-	*/
-	std::map<v2s16, MapSector*> *getSectorsPtr(){return &m_sectors;}
-
-	/*
 		Variables
 	*/
 
@@ -283,8 +276,6 @@ public:
 protected:
 	friend class LuaVoxelManip;
 
-	std::ostream &m_dout; // A bit deprecated, could be removed
-
 	IGameDef *m_gamedef;
 
 	std::set<MapEventReceiver*> m_event_receivers;
@@ -374,15 +365,6 @@ public:
 	*/
 	MapBlock *getBlockOrEmerge(v3s16 p3d);
 
-	// Helper for placing objects on ground level
-	s16 findGroundLevel(v2s16 p2d);
-
-	/*
-		Misc. helper functions for fiddling with directory and file
-		names when saving
-	*/
-	void createDirs(const std::string &path);
-
 	/*
 		Database functions
 	*/
@@ -414,7 +396,6 @@ public:
 	bool isSavingEnabled(){ return m_map_saving_enabled; }
 
 	u64 getSeed();
-	s16 getWaterLevel();
 
 	/*!
 	 * Fixes lighting in one map block.
diff --git a/src/mapgen/mapgen.cpp b/src/mapgen/mapgen.cpp
index 52ef64e7e..e0dfd2d71 100644
--- a/src/mapgen/mapgen.cpp
+++ b/src/mapgen/mapgen.cpp
@@ -244,26 +244,6 @@ u32 Mapgen::getBlockSeed2(v3s16 p, s32 seed)
 }
 
 
-// Returns Y one under area minimum if not found
-s16 Mapgen::findGroundLevelFull(v2s16 p2d)
-{
-	const v3s16 &em = vm->m_area.getExtent();
-	s16 y_nodes_max = vm->m_area.MaxEdge.Y;
-	s16 y_nodes_min = vm->m_area.MinEdge.Y;
-	u32 i = vm->m_area.index(p2d.X, y_nodes_max, p2d.Y);
-	s16 y;
-
-	for (y = y_nodes_max; y >= y_nodes_min; y--) {
-		MapNode &n = vm->m_data[i];
-		if (ndef->get(n).walkable)
-			break;
-
-		VoxelArea::add_y(em, i, -1);
-	}
-	return (y >= y_nodes_min) ? y : y_nodes_min - 1;
-}
-
-
 // Returns -MAX_MAP_GENERATION_LIMIT if not found
 s16 Mapgen::findGroundLevel(v2s16 p2d, s16 ymin, s16 ymax)
 {
@@ -984,19 +964,6 @@ GenerateNotifier::GenerateNotifier(u32 notify_on,
 }
 
 
-void GenerateNotifier::setNotifyOn(u32 notify_on)
-{
-	m_notify_on = notify_on;
-}
-
-
-void GenerateNotifier::setNotifyOnDecoIds(
-	const std::set<u32> *notify_on_deco_ids)
-{
-	m_notify_on_deco_ids = notify_on_deco_ids;
-}
-
-
 bool GenerateNotifier::addEvent(GenNotifyType type, v3s16 pos, u32 id)
 {
 	if (!(m_notify_on & (1 << type)))
diff --git a/src/mapgen/mapgen.h b/src/mapgen/mapgen.h
index 0f2977c4c..1487731e2 100644
--- a/src/mapgen/mapgen.h
+++ b/src/mapgen/mapgen.h
@@ -88,19 +88,17 @@ struct GenNotifyEvent {
 
 class GenerateNotifier {
 public:
+	// Use only for temporary Mapgen objects with no map generation!
 	GenerateNotifier() = default;
 	GenerateNotifier(u32 notify_on, const std::set<u32> *notify_on_deco_ids);
 
-	void setNotifyOn(u32 notify_on);
-	void setNotifyOnDecoIds(const std::set<u32> *notify_on_deco_ids);
-
 	bool addEvent(GenNotifyType type, v3s16 pos, u32 id=0);
 	void getEvents(std::map<std::string, std::vector<v3s16> > &event_map);
 	void clearEvents();
 
 private:
 	u32 m_notify_on = 0;
-	const std::set<u32> *m_notify_on_deco_ids;
+	const std::set<u32> *m_notify_on_deco_ids = nullptr;
 	std::list<GenNotifyEvent> m_notify_events;
 };
 
@@ -186,7 +184,6 @@ public:
 
 	static u32 getBlockSeed(v3s16 p, s32 seed);
 	static u32 getBlockSeed2(v3s16 p, s32 seed);
-	s16 findGroundLevelFull(v2s16 p2d);
 	s16 findGroundLevel(v2s16 p2d, s16 ymin, s16 ymax);
 	s16 findLiquidSurface(v2s16 p2d, s16 ymin, s16 ymax);
 	void updateHeightmap(v3s16 nmin, v3s16 nmax);
diff --git a/src/mapgen/mapgen_v6.cpp b/src/mapgen/mapgen_v6.cpp
index 8bea5eb69..90a52e031 100644
--- a/src/mapgen/mapgen_v6.cpp
+++ b/src/mapgen/mapgen_v6.cpp
@@ -341,12 +341,6 @@ float MapgenV6::baseTerrainLevelFromMap(int index)
 }
 
 
-s16 MapgenV6::find_ground_level_from_noise(u64 seed, v2s16 p2d, s16 precision)
-{
-	return baseTerrainLevelFromNoise(p2d) + MGV6_AVERAGE_MUD_AMOUNT;
-}
-
-
 int MapgenV6::getGroundLevelAtPoint(v2s16 p)
 {
 	return baseTerrainLevelFromNoise(p) + MGV6_AVERAGE_MUD_AMOUNT;
diff --git a/src/mapgen/mapgen_v6.h b/src/mapgen/mapgen_v6.h
index ff565edec..a6e6da8c6 100644
--- a/src/mapgen/mapgen_v6.h
+++ b/src/mapgen/mapgen_v6.h
@@ -150,7 +150,6 @@ public:
 
 	s16 find_stone_level(v2s16 p2d);
 	bool block_is_underground(u64 seed, v3s16 blockpos);
-	s16 find_ground_level_from_noise(u64 seed, v2s16 p2d, s16 precision);
 
 	float getHumidity(v2s16 p);
 	float getTreeAmount(v2s16 p);
diff --git a/src/mapgen/treegen.cpp b/src/mapgen/treegen.cpp
index e7e30c880..e633d800a 100644
--- a/src/mapgen/treegen.cpp
+++ b/src/mapgen/treegen.cpp
@@ -527,19 +527,6 @@ treegen::error make_ltree(MMVManip &vmanip, v3s16 p0,
 }
 
 
-void tree_node_placement(MMVManip &vmanip, v3f p0, MapNode node)
-{
-	v3s16 p1 = v3s16(myround(p0.X), myround(p0.Y), myround(p0.Z));
-	if (!vmanip.m_area.contains(p1))
-		return;
-	u32 vi = vmanip.m_area.index(p1);
-	if (vmanip.m_data[vi].getContent() != CONTENT_AIR
-			&& vmanip.m_data[vi].getContent() != CONTENT_IGNORE)
-		return;
-	vmanip.m_data[vmanip.m_area.index(p1)] = node;
-}
-
-
 void tree_trunk_placement(MMVManip &vmanip, v3f p0, TreeDef &tree_definition)
 {
 	v3s16 p1 = v3s16(myround(p0.X), myround(p0.Y), myround(p0.Z));
diff --git a/src/mapgen/treegen.h b/src/mapgen/treegen.h
index 447baabb3..59a418824 100644
--- a/src/mapgen/treegen.h
+++ b/src/mapgen/treegen.h
@@ -76,8 +76,6 @@ namespace treegen {
 		const NodeDefManager *ndef, const TreeDef &tree_definition);
 
 	// L-System tree gen helper functions
-	void tree_node_placement(MMVManip &vmanip, v3f p0,
-		MapNode node);
 	void tree_trunk_placement(MMVManip &vmanip, v3f p0,
 		TreeDef &tree_definition);
 	void tree_leaves_placement(MMVManip &vmanip, v3f p0,
diff --git a/src/network/networkpacket.cpp b/src/network/networkpacket.cpp
index 4d531b611..6d0abb12c 100644
--- a/src/network/networkpacket.cpp
+++ b/src/network/networkpacket.cpp
@@ -223,13 +223,6 @@ NetworkPacket& NetworkPacket::operator>>(char& dst)
 	return *this;
 }
 
-char NetworkPacket::getChar(u32 offset)
-{
-	checkReadOffset(offset, 1);
-
-	return readU8(&m_data[offset]);
-}
-
 NetworkPacket& NetworkPacket::operator<<(char src)
 {
 	checkDataSize(1);
diff --git a/src/network/networkpacket.h b/src/network/networkpacket.h
index fc8617651..e77bfb744 100644
--- a/src/network/networkpacket.h
+++ b/src/network/networkpacket.h
@@ -64,7 +64,6 @@ public:
 
 	std::string readLongString();
 
-	char getChar(u32 offset);
 	NetworkPacket &operator>>(char &dst);
 	NetworkPacket &operator<<(char src);
 
diff --git a/src/script/common/c_converter.cpp b/src/script/common/c_converter.cpp
index eb6ab5331..c00401b58 100644
--- a/src/script/common/c_converter.cpp
+++ b/src/script/common/c_converter.cpp
@@ -679,48 +679,3 @@ size_t write_array_slice_float(
 
 	return elem_index - 1;
 }
-
-
-size_t write_array_slice_u16(
-	lua_State *L,
-	int table_index,
-	u16 *data,
-	v3u16 data_size,
-	v3u16 slice_offset,
-	v3u16 slice_size)
-{
-	v3u16 pmin, pmax(data_size);
-
-	if (slice_offset.X > 0) {
-		slice_offset.X--;
-		pmin.X = slice_offset.X;
-		pmax.X = MYMIN(slice_offset.X + slice_size.X, data_size.X);
-	}
-
-	if (slice_offset.Y > 0) {
-		slice_offset.Y--;
-		pmin.Y = slice_offset.Y;
-		pmax.Y = MYMIN(slice_offset.Y + slice_size.Y, data_size.Y);
-	}
-
-	if (slice_offset.Z > 0) {
-		slice_offset.Z--;
-		pmin.Z = slice_offset.Z;
-		pmax.Z = MYMIN(slice_offset.Z + slice_size.Z, data_size.Z);
-	}
-
-	const u32 ystride = data_size.X;
-	const u32 zstride = data_size.X * data_size.Y;
-
-	u32 elem_index = 1;
-	for (u32 z = pmin.Z; z != pmax.Z; z++)
-	for (u32 y = pmin.Y; y != pmax.Y; y++)
-	for (u32 x = pmin.X; x != pmax.X; x++) {
-		u32 i = z * zstride + y * ystride + x;
-		lua_pushinteger(L, data[i]);
-		lua_rawseti(L, table_index, elem_index);
-		elem_index++;
-	}
-
-	return elem_index - 1;
-}
diff --git a/src/script/common/c_converter.h b/src/script/common/c_converter.h
index a4a7079fd..6ad6f3212 100644
--- a/src/script/common/c_converter.h
+++ b/src/script/common/c_converter.h
@@ -136,5 +136,3 @@ void                warn_if_field_exists(lua_State *L, int table,
 
 size_t write_array_slice_float(lua_State *L, int table_index, float *data,
 	v3u16 data_size, v3u16 slice_offset, v3u16 slice_size);
-size_t write_array_slice_u16(lua_State *L, int table_index, u16 *data,
-	v3u16 data_size, v3u16 slice_offset, v3u16 slice_size);
diff --git a/src/script/lua_api/l_mainmenu.cpp b/src/script/lua_api/l_mainmenu.cpp
index e49ec4052..0aa2760e9 100644
--- a/src/script/lua_api/l_mainmenu.cpp
+++ b/src/script/lua_api/l_mainmenu.cpp
@@ -29,7 +29,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "porting.h"
 #include "filesys.h"
 #include "convert_json.h"
-#include "content/packages.h"
 #include "content/content.h"
 #include "content/subgames.h"
 #include "serverlist.h"
diff --git a/src/unittest/test_map_settings_manager.cpp b/src/unittest/test_map_settings_manager.cpp
index 0a5c971b9..3d642a9b4 100644
--- a/src/unittest/test_map_settings_manager.cpp
+++ b/src/unittest/test_map_settings_manager.cpp
@@ -65,31 +65,6 @@ void check_noise_params(const NoiseParams *np1, const NoiseParams *np2)
 }
 
 
-std::string read_file_to_string(const std::string &filepath)
-{
-	std::string buf;
-	FILE *f = fopen(filepath.c_str(), "rb");
-	if (!f)
-		return "";
-
-	fseek(f, 0, SEEK_END);
-
-	long filesize = ftell(f);
-	if (filesize == -1) {
-		fclose(f);
-		return "";
-	}
-	rewind(f);
-
-	buf.resize(filesize);
-
-	UASSERTEQ(size_t, fread(&buf[0], 1, filesize, f), 1);
-
-	fclose(f);
-	return buf;
-}
-
-
 void TestMapSettingsManager::makeUserConfig(Settings *conf)
 {
 	conf->set("mg_name", "v7");
@@ -199,7 +174,8 @@ void TestMapSettingsManager::testMapSettingsManager()
 	};
 
 	SHA1 ctx;
-	std::string metafile_contents = read_file_to_string(test_mapmeta_path);
+	std::string metafile_contents;
+	UASSERT(fs::ReadFile(test_mapmeta_path, metafile_contents));
 	ctx.addBytes(&metafile_contents[0], metafile_contents.size());
 	unsigned char *sha1_result = ctx.getDigest();
 	int resultdiff = memcmp(sha1_result, expected_contents_hash, 20);