Reduce number of recursively included headers

This should improve compilation speed.

Things changed:
* Prefer forward-declarations in headers.
* Move header-includes out of headers if possible.
* Move some functions definitions out of headers.
* Put some member variables into unique_ptrs (see Client).

src/client/camera.h

@@ -22,6 +22,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "irrlichttypes_extrabloated.h"
 #include "inventory.h"
 #include "client/tile.h"
+#include "client/localplayer.h"
 #include <ICameraSceneNode.h>
 #include <ISceneNode.h>
 #include <plane3d.h>

src/client/client.cpp

@@ -32,6 +32,9 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "client/renderingengine.h"
 #include "client/sound.h"
 #include "client/tile.h"
+#include "client/mesh_generator_thread.h"
+#include "client/particles.h"
+#include "client/localplayer.h"
 #include "util/auth.h"
 #include "util/directiontables.h"
 #include "util/pointedthing.h"
@@ -60,6 +63,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "chatmessage.h"
 #include "translation.h"
 #include "content/mod_configuration.h"
+#include "mapnode.h"
 
 extern gui::IGUIEnvironment* guienv;
 
@@ -112,12 +116,12 @@ Client::Client(
 	m_sound(sound),
 	m_event(event),
 	m_rendering_engine(rendering_engine),
-	m_mesh_update_manager(this),
+	m_mesh_update_manager(std::make_unique<MeshUpdateManager>(this)),
 	m_env(
 		new ClientMap(this, rendering_engine, control, 666),
 		tsrc, this
 	),
-	m_particle_manager(&m_env),
+	m_particle_manager(std::make_unique<ParticleManager>(&m_env)),
 	m_con(new con::Connection(PROTOCOL_ID, 512, CONNECTION_TIMEOUT, ipv6, this)),
 	m_address_name(address_name),
 	m_allow_login_or_register(allow_login_or_register),
@@ -314,7 +318,7 @@ void Client::Stop()
 	if (m_mods_loaded)
 		m_script->on_shutdown();
 	//request all client managed threads to stop
-	m_mesh_update_manager.stop();
+	m_mesh_update_manager->stop();
 	// Save local server map
 	if (m_localdb) {
 		infostream << "Local map saving ended." << std::endl;
@@ -327,7 +331,7 @@ void Client::Stop()
 
 bool Client::isShutdown()
 {
-	return m_shutdown || !m_mesh_update_manager.isRunning();
+	return m_shutdown || !m_mesh_update_manager->isRunning();
 }
 
 Client::~Client()
@@ -337,11 +341,11 @@ Client::~Client()
 
 	deleteAuthData();
 
-	m_mesh_update_manager.stop();
-	m_mesh_update_manager.wait();
+	m_mesh_update_manager->stop();
+	m_mesh_update_manager->wait();
 
 	MeshUpdateResult r;
-	while (m_mesh_update_manager.getNextResult(r)) {
+	while (m_mesh_update_manager->getNextResult(r)) {
 		for (auto block : r.map_blocks)
 			if (block)
 				block->refDrop();
@@ -553,7 +557,7 @@ void Client::step(float dtime)
 		std::vector<v3s16> blocks_to_ack;
 		bool force_update_shadows = false;
 		MeshUpdateResult r;
-		while (m_mesh_update_manager.getNextResult(r))
+		while (m_mesh_update_manager->getNextResult(r))
 		{
 			num_processed_meshes++;
 
@@ -1128,12 +1132,14 @@ void Client::startAuth(AuthMechanism chosen_auth_mechanism)
 {
 	m_chosen_auth_mech = chosen_auth_mechanism;
 
+	std::string playername = m_env.getLocalPlayer()->getName();
+
 	switch (chosen_auth_mechanism) {
 		case AUTH_MECHANISM_FIRST_SRP: {
 			// send srp verifier to server
 			std::string verifier;
 			std::string salt;
-			generate_srp_verifier_and_salt(getPlayerName(), m_password,
+			generate_srp_verifier_and_salt(playername, m_password,
 				&verifier, &salt);
 
 			NetworkPacket resp_pkt(TOSERVER_FIRST_SRP, 0);
@@ -1147,13 +1153,13 @@ void Client::startAuth(AuthMechanism chosen_auth_mechanism)
 			u8 based_on = 1;
 
 			if (chosen_auth_mechanism == AUTH_MECHANISM_LEGACY_PASSWORD) {
-				m_password = translate_password(getPlayerName(), m_password);
+				m_password = translate_password(playername, m_password);
 				based_on = 0;
 			}
 
-			std::string playername_u = lowercase(getPlayerName());
+			std::string playername_u = lowercase(playername);
 			m_auth_data = srp_user_new(SRP_SHA256, SRP_NG_2048,
-				getPlayerName().c_str(), playername_u.c_str(),
+				playername.c_str(), playername_u.c_str(),
 				(const unsigned char *) m_password.c_str(),
 				m_password.length(), NULL, NULL);
 			char *bytes_A = 0;
@@ -1695,12 +1701,12 @@ void Client::addUpdateMeshTask(v3s16 p, bool ack_to_server, bool urgent)
 	if (b == NULL)
 		return;
 
-	m_mesh_update_manager.updateBlock(&m_env.getMap(), p, ack_to_server, urgent);
+	m_mesh_update_manager->updateBlock(&m_env.getMap(), p, ack_to_server, urgent);
 }
 
 void Client::addUpdateMeshTaskWithEdge(v3s16 blockpos, bool ack_to_server, bool urgent)
 {
-	m_mesh_update_manager.updateBlock(&m_env.getMap(), blockpos, ack_to_server, urgent, true);
+	m_mesh_update_manager->updateBlock(&m_env.getMap(), blockpos, ack_to_server, urgent, true);
 }
 
 void Client::addUpdateMeshTaskForNode(v3s16 nodepos, bool ack_to_server, bool urgent)
@@ -1714,7 +1720,7 @@ void Client::addUpdateMeshTaskForNode(v3s16 nodepos, bool ack_to_server, bool ur
 
 	v3s16 blockpos = getNodeBlockPos(nodepos);
 	v3s16 blockpos_relative = blockpos * MAP_BLOCKSIZE;
-	m_mesh_update_manager.updateBlock(&m_env.getMap(), blockpos, ack_to_server, urgent, false);
+	m_mesh_update_manager->updateBlock(&m_env.getMap(), blockpos, ack_to_server, urgent, false);
 	// Leading edge
 	if (nodepos.X == blockpos_relative.X)
 		addUpdateMeshTask(blockpos + v3s16(-1, 0, 0), false, urgent);
@@ -1724,6 +1730,11 @@ void Client::addUpdateMeshTaskForNode(v3s16 nodepos, bool ack_to_server, bool ur
 		addUpdateMeshTask(blockpos + v3s16(0, 0, -1), false, urgent);
 }
 
+void Client::updateCameraOffset(v3s16 camera_offset)
+{
+	m_mesh_update_manager->m_camera_offset = camera_offset;
+}
+
 ClientEvent *Client::getClientEvent()
 {
 	FATAL_ERROR_IF(m_client_event_queue.empty(),
@@ -1828,7 +1839,7 @@ void Client::afterContentReceived()
 
 	// Start mesh update thread after setting up content definitions
 	infostream<<"- Starting mesh update thread"<<std::endl;
-	m_mesh_update_manager.start();
+	m_mesh_update_manager->start();
 
 	m_state = LC_Ready;
 	sendReady();
@@ -1979,7 +1990,7 @@ MtEventManager* Client::getEventManager()
 
 ParticleManager* Client::getParticleManager()
 {
-	return &m_particle_manager;
+	return m_particle_manager.get();
 }
 
 scene::IAnimatedMesh* Client::getMesh(const std::string &filename, bool cache)
@@ -2078,3 +2089,8 @@ ModChannel* Client::getModChannel(const std::string &channel)
 {
 	return m_modchannel_mgr->getModChannel(channel);
 }
+
+const std::string &Client::getFormspecPrepend() const
+{
+	return m_env.getLocalPlayer()->formspec_prepend;
+}

src/client/client.h

@@ -23,18 +23,15 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "irrlichttypes_extrabloated.h"
 #include <ostream>
 #include <map>
+#include <memory>
 #include <set>
 #include <vector>
 #include <unordered_set>
 #include "clientobject.h"
 #include "gamedef.h"
 #include "inventorymanager.h"
-#include "localplayer.h"
 #include "client/hud.h"
-#include "particles.h"
-#include "mapnode.h"
 #include "tileanimation.h"
-#include "mesh_generator_thread.h"
 #include "network/address.h"
 #include "network/peerhandler.h"
 #include "gameparams.h"
@@ -61,10 +58,14 @@ struct MapDrawControl;
 class ModChannelMgr;
 class MtEventManager;
 struct PointedThing;
+struct MapNode;
 class MapDatabase;
 class Minimap;
 struct MinimapMapblock;
+class MeshUpdateManager;
+class ParticleManager;
 class Camera;
+struct PlayerControl;
 class NetworkPacket;
 namespace con {
 class Connection;
@@ -315,8 +316,7 @@ public:
 	void addUpdateMeshTaskWithEdge(v3s16 blockpos, bool ack_to_server=false, bool urgent=false);
 	void addUpdateMeshTaskForNode(v3s16 nodepos, bool ack_to_server=false, bool urgent=false);
 
-	void updateCameraOffset(v3s16 camera_offset)
-	{ m_mesh_update_manager.m_camera_offset = camera_offset; }
+	void updateCameraOffset(v3s16 camera_offset);
 
 	bool hasClientEvents() const { return !m_client_event_queue.empty(); }
 	// Get event from queue. If queue is empty, it triggers an assertion failure.
@@ -436,10 +436,7 @@ public:
 			const std::string &message) override;
 	ModChannel *getModChannel(const std::string &channel) override;
 
-	const std::string &getFormspecPrepend() const
-	{
-		return m_env.getLocalPlayer()->formspec_prepend;
-	}
+	const std::string &getFormspecPrepend() const;
 	inline MeshGrid getMeshGrid()
 	{
 		return m_mesh_grid;
@@ -470,10 +467,6 @@ private:
 	void sendGotBlocks(const std::vector<v3s16> &blocks);
 	void sendRemovedSounds(std::vector<s32> &soundList);
 
-	// Helper function
-	inline std::string getPlayerName()
-	{ return m_env.getLocalPlayer()->getName(); }
-
 	bool canSendChatMessage() const;
 
 	float m_packetcounter_timer = 0.0f;
@@ -491,9 +484,9 @@ private:
 	RenderingEngine *m_rendering_engine;
 
 
-	MeshUpdateManager m_mesh_update_manager;
+	std::unique_ptr<MeshUpdateManager> m_mesh_update_manager;
 	ClientEnvironment m_env;
-	ParticleManager m_particle_manager;
+	std::unique_ptr<ParticleManager> m_particle_manager;
 	std::unique_ptr<con::Connection> m_con;
 	std::string m_address_name;
 	ELoginRegister m_allow_login_or_register = ELoginRegister::Any;

src/client/clientenvironment.cpp

@@ -23,6 +23,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "clientenvironment.h"
 #include "clientsimpleobject.h"
 #include "clientmap.h"
+#include "localplayer.h"
 #include "scripting_client.h"
 #include "mapblock_mesh.h"
 #include "mtevent.h"

src/client/clientmap.cpp

@@ -24,6 +24,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include <matrix4.h>
 #include "mapsector.h"
 #include "mapblock.h"
+#include "nodedef.h"
 #include "profiler.h"
 #include "settings.h"
 #include "camera.h"               // CameraModes

src/client/content_cao.cpp

@@ -26,6 +26,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "client/renderingengine.h"
 #include "client/sound.h"
 #include "client/tile.h"
+#include "client/mapblock_mesh.h"
 #include "util/basic_macros.h"
 #include "util/numeric.h"
 #include "util/serialize.h"

src/client/game.cpp

@@ -30,6 +30,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "client/tile.h"     // For TextureSource
 #include "client/keys.h"
 #include "client/joystick_controller.h"
+#include "client/mapblock_mesh.h"
 #include "clientmap.h"
 #include "clouds.h"
 #include "config.h"

src/client/mapblock_mesh.cpp

@@ -21,6 +21,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "client.h"
 #include "mapblock.h"
 #include "map.h"
+#include "noise.h"
 #include "profiler.h"
 #include "shader.h"
 #include "mesh.h"
@@ -31,6 +32,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "client/renderingengine.h"
 #include <array>
 #include <algorithm>
+#include <cmath>
 
 /*
 	MeshMakeData

src/client/render/pipeline.cpp

@@ -20,6 +20,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "pipeline.h"
 #include "client/client.h"
 #include "client/hud.h"
+#include "IRenderTarget.h"
 
 #include <vector>
 #include <memory>
@@ -63,7 +64,7 @@ void TextureBuffer::setTexture(u8 index, v2f scale_factor, const std::string &na
 
 	if (m_definitions.size() <= index)
 		m_definitions.resize(index + 1);
-	
+
 	auto &definition = m_definitions[index];
 	definition.valid = true;
 	definition.dirty = true;
@@ -99,7 +100,7 @@ void TextureBuffer::reset(PipelineContext &context)
 		ensureTexture(ptr, m_definitions[i], context);
 		m_definitions[i].dirty = false;
 	}
-	
+
 	RenderSource::reset(context);
 }
 
@@ -124,7 +125,7 @@ bool TextureBuffer::ensureTexture(video::ITexture **texture, const TextureDefini
 			size = core::dimension2du(
 					(u32)(context.target_size.X * definition.scale_factor.X),
 					(u32)(context.target_size.Y * definition.scale_factor.Y));
-		
+
 		modify = definition.dirty || (*texture == nullptr) || (*texture)->getSize() != size;
 	}
 	else {
@@ -283,7 +284,7 @@ void RenderPipeline::run(PipelineContext &context)
 
 	for (auto &step: m_pipeline)
 		step->run(context);
-	
+
 	context.target_size = original_size;
 }
 

src/client/render/secondstage.cpp

@@ -23,6 +23,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "client/client.h"
 #include "client/shader.h"
 #include "client/tile.h"
+#include "settings.h"
 
 PostProcessingStep::PostProcessingStep(u32 _shader_id, const std::vector<u8> &_texture_map) :
 	shader_id(_shader_id), texture_map(_texture_map)

src/client/shadows/dynamicshadowsrender.cpp

@@ -29,6 +29,9 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "client/client.h"
 #include "client/clientmap.h"
 #include "profiler.h"
+#include "EShaderTypes.h"
+#include "IGPUProgrammingServices.h"
+#include "IMaterialRenderer.h"
 
 ShadowRenderer::ShadowRenderer(IrrlichtDevice *device, Client *client) :
 		m_smgr(device->getSceneManager()), m_driver(device->getVideoDriver()),