some OpenGL boilerplate

CMakeLists.txt

@@ -3,11 +3,7 @@ project(MingeCraft)
 
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} CMakeModules/)
 
-<<<<<<< HEAD
-set(CMAKE_BUILD_TYPE Debug)
-=======
 # set(CMAKE_BUILD_TYPE Debug)
->>>>>>> dev
 set(CMAKE_CXX_FLAGS "-Ofast")
 
 set(executable output)
@@ -46,11 +42,7 @@ include_directories(${executable}
 
 file(GLOB SourceFiles 
 	${SrcDIR}/*
-	${SrcDIR}/util/*
+	${SrcDIR}/ThirdParty/*
-	${SrcDIR}/game/*
-	${SrcDIR}/world/*
-	${SrcDIR}/world/chunk/*
-	${SrcDIR}/renderer/*
 )
 
 add_executable(${executable} ${SourceFiles})

src/display.cpp

@@ -0,0 +1,120 @@
+#include "display.hpp"
+
+Display::Display( int w, int h, std::string title )
+	: mLogger() 
+{
+	
+	mLogger << LOGGER_INFO << "Initializing display" << LOGGER_ENDL;
+	SDL_Init( SDL_INIT_VIDEO|SDL_INIT_AUDIO );
+
+	SDL_GL_SetAttribute( SDL_GL_RED_SIZE, 8 );
+	SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 8 );
+	SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 8 );
+	SDL_GL_SetAttribute( SDL_GL_ALPHA_SIZE, 8 );
+	SDL_GL_SetAttribute( SDL_GL_BUFFER_SIZE, 32 );
+	SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
+
+	SDL_GL_SetAttribute( SDL_GL_MULTISAMPLEBUFFERS, 1 );
+	SDL_GL_SetAttribute( SDL_GL_MULTISAMPLESAMPLES, 4 );
+
+	SDL_GL_SetAttribute( SDL_GL_CONTEXT_MAJOR_VERSION, 4 );
+	SDL_GL_SetAttribute( SDL_GL_CONTEXT_MINOR_VERSION, 5 );
+
+	// Create GL window
+	mLogger << LOGGER_INFO << "Creating window" << LOGGER_ENDL;
+	mWindow = SDL_CreateWindow( title.c_str(),
+		SDL_WINDOWPOS_CENTERED,
+		SDL_WINDOWPOS_CENTERED, w, h,
+		SDL_WINDOW_OPENGL|SDL_WINDOW_RESIZABLE );
+
+	// Create GL context
+	mLogger << LOGGER_INFO << "Creating OpenGL context" << LOGGER_ENDL;
+	mGlContext = SDL_GL_CreateContext( mWindow );
+
+	SDL_SetRelativeMouseMode( SDL_TRUE );
+
+	// Set VSYNC swap interval
+	SDL_GL_SetSwapInterval( 1 );
+
+	mLogger << LOGGER_INFO << "Display set up" << LOGGER_ENDL;
+
+	// Load OpenGL
+	gladLoadGLLoader( SDL_GL_GetProcAddress );
+	glEnable( GL_MULTISAMPLE );
+	// glEnable(GL_CULL_FACE);
+	glCullFace( GL_BACK );
+	glEnable( GL_DEPTH_TEST );
+	// glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
+
+	mLogger << LOGGER_INFO << "Loaded OpenGL" << LOGGER_ENDL;
+	mLogger << LOGGER_ENDL;
+
+	IsWindowOpen = true;
+
+}
+
+void Display::Input( SDL_Event* e )
+{
+
+	Uint8* state = (Uint8*) SDL_GetKeyboardState( NULL );
+
+	while ( SDL_PollEvent( e ) )
+	{
+
+		switch ( e->type )
+		{
+
+		case SDL_KEYDOWN:
+		{
+			if ( e->key.keysym.sym == SDLK_ESCAPE )
+			{
+				IsMouseActive = !IsMouseActive;
+
+				if ( IsMouseActive )
+					SDL_SetRelativeMouseMode( SDL_TRUE );
+				else
+					SDL_SetRelativeMouseMode( SDL_FALSE );
+			}
+
+			break;
+		}
+
+		case SDL_WINDOWEVENT:
+		{
+			if ( e->window.event == SDL_WINDOWEVENT_RESIZED )
+			{
+				// CameraUpdateProjection( e->window.data1, e->window.data2 );
+				glViewport( 0, 0, e->window.data1, e->window.data2 );
+			}
+
+			break;
+		}
+
+		case SDL_QUIT:
+		{
+			IsWindowOpen = false;
+			break;
+		}
+
+		}
+
+		// if ( IsMouseActive ) m_player->HandleMouseSDL( *e );
+	}
+
+	// m_player->MoveSDL( state );
+
+}
+
+void Display::PrepareFrame()
+{
+	static const float clear[] = { 186.0f / 255.0f, 214.0f / 255.0f, 254.0f / 255.0f };
+
+	glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
+	glClearBufferfv( GL_COLOR, 0, clear );
+}
+
+void Display::NextFrame()
+{
+	SDL_GL_SwapWindow( mWindow );
+}
+

src/display.hpp

@@ -0,0 +1,42 @@
+#ifndef MINECRAFT_DISPLAY_H_
+#define MINECRAFT_DISPLAY_H_
+
+#include <string>
+
+#include <logger.h>
+
+#if _WIN32
+#include <SDL.h>
+#else
+#include <SDL2/SDL.h>
+#endif
+
+#include <glad/glad.h>
+#include <KHR/khrplatform.h>
+
+class Display
+{
+public:
+
+	Display( int w, int h, std::string title );
+
+	void Input( SDL_Event* e );
+
+	void PrepareFrame();
+	void NextFrame();
+
+	bool IsWindowOpen = false;
+	bool IsMouseActive = true;
+
+private:
+
+	Logger mLogger;
+
+	SDL_Window* mWindow = nullptr;
+	SDL_GLContext mGlContext = nullptr;
+
+	int mW, mH;
+
+};
+
+#endif

src/main.cpp

@@ -0,0 +1,78 @@
+#include <iostream>
+#include <sstream>
+
+#define LOGGER_DEFINITION
+#include <logger.h>
+
+#if _WIN32
+#include <SDL.h>
+#else
+#include <SDL2/SDL.h>
+#endif
+
+#include "display.hpp"
+#include "settings.hpp"
+
+
+#define __DEBUG
+
+static const int VERSION_MAJOR = 1;
+static const int VERSION_MINOR = 1;
+static const int VERSION_PATCH = 0;
+
+void version()
+{
+	std::stringstream version;
+
+	auto& container = []( std::string s ) { std::string r = ""; for ( auto& c : s ) { r += "-"; } return r; };
+
+	version << "Minecraft ";
+	version << VERSION_MAJOR << "." << VERSION_MINOR << "." << VERSION_PATCH;
+
+	std::cout << container( version.str() ) << std::endl;
+	std::cout << version.str() << std::endl;
+	std::cout << container( version.str() ) << std::endl;
+}
+
+void Loop( Display* display )
+{
+	SDL_Event e;
+
+	while ( display->IsWindowOpen )
+	{
+		display->PrepareFrame();
+
+		// make framerate agnostic
+		display->Input( &e );
+
+
+		// rendering here
+
+		display->NextFrame();
+	}
+
+	// cleanup
+
+}
+
+int main( int argc, char** argv )
+{
+	version();
+
+	Logger mLogger;
+	
+#ifdef __DEBUG
+	mLogger << LOGGER_DEBUG << "Debug mode enabled" << LOGGER_ENDL;
+#endif
+
+	// settup display
+
+	std::stringstream version;
+	version << "Minecraft ";
+	version << VERSION_MAJOR << "." << VERSION_MINOR << "." << VERSION_PATCH;
+
+	Display display { WindowWidth, WindowHeight, version.str() };
+
+	Loop( &display );
+
+}

src/settings.hpp

@@ -0,0 +1,10 @@
+#ifndef MINECRAFT_SETTINGS_H_
+#define MINECRAFT_SETTINGS_H_
+
+// TODO: import settings and stuff
+// for now this works
+
+static const int WindowWidth = 1000;
+static const int WindowHeight = 600;
+
+#endif