Isolate irrlicht references and use a singleton (#6041)

* Add Device3D class which will contain IrrlichtDevice interface

move getSupportedVideoDrivers to Device3D

Add Device3D singleton & use it in various places

Rename Device3D to Rendering engine & add helper functions to various device pointers

More singleton work

RenderingEngine owns draw_load_screen

move draw functions to RenderingEngine

Reduce IrrlichtDevice exposure and guienvironment

RenderingEngine: Expose get_timer_time() to remove device from guiEngine

Make irrlichtdevice & scene manager less exposed

* Code style fixes

* Move porting::getVideoDriverName, getVideoDriverFriendlyName, getDisplayDensity, getDisplaySize to RenderingEngine

Fix XORG_USED macro -> RenderingEngine + create_engine_device from RenderingEngine constructor directly

* enum paralax => enum parallax

1 files changed, 1 insertions, 4 deletions

diff --git a/src/client/clientlauncher.h b/src/client/clientlauncher.h
index 9e0560b14..8f8a01e2f 100644
--- a/src/client/clientlauncher.h
+++ b/src/client/clientlauncher.h
@@ -24,6 +24,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "client/inputhandler.h"
 #include "gameparams.h"
 
+class RenderingEngine;
 
 class ClientLauncher
 {
@@ -43,10 +44,8 @@ protected:
 		GameParams &game_params, const Settings &cmd_args);
 
 	void main_menu(MainMenuData *menudata);
-	bool create_engine_device();
 
 	void speed_tests();
-	bool print_video_modes();
 
 	bool list_video_modes = false;
 	bool skip_main_menu = false;
@@ -55,12 +54,10 @@ protected:
 	std::string address = "";
 	std::string playername = "";
 	std::string password = "";
-	IrrlichtDevice *device = nullptr;
 	InputHandler *input = nullptr;
 	MyEventReceiver *receiver = nullptr;
 	gui::IGUISkin *skin = nullptr;
 	gui::IGUIFont *font = nullptr;
-	scene::ISceneManager *smgr = nullptr;
 	SubgameSpec gamespec;
 	WorldSpec worldspec;
 	bool simple_singleplayer_mode;