clooneljump/src/main.cpp

#include <SDL2/SDL.h>
#include <iostream>
#include "CloonelJumpConfig.h"
#include <stdexcept>

namespace {
	struct InitSDLStuff {
		SDL_Window* window;
		SDL_Renderer* renderer;
		bool initialized;
	};

	///------------------------------------------------------------------------
	///------------------------------------------------------------------------
	void InitSDL (InitSDLStuff& parInitSDL) {
		parInitSDL.window = nullptr;
		parInitSDL.renderer = nullptr;
		parInitSDL.initialized = false;

		if (SDL_Init(SDL_INIT_EVERYTHING) == -1)
			throw std::runtime_error(SDL_GetError());
		parInitSDL.initialized = true;

		SDL_Window* const win = SDL_CreateWindow(GameName, 100, 100, DEF_WIN_WIDTH, DEF_WIN_HEIGHT, SDL_WINDOW_SHOWN);
		if (!win)
			throw std::runtime_error(SDL_GetError());
		parInitSDL.window = win;

		SDL_Renderer* const renderer = SDL_CreateRenderer(win, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
		if (!renderer)
			throw std::runtime_error(SDL_GetError());
		parInitSDL.renderer = renderer;
	}

	///------------------------------------------------------------------------
	///------------------------------------------------------------------------
	void ClearIFN (InitSDLStuff& parInitSDL) {
		if (parInitSDL.renderer)
			SDL_DestroyRenderer(parInitSDL.renderer);
		if (parInitSDL.window)
			SDL_DestroyWindow(parInitSDL.window);
		if (parInitSDL.initialized)
			SDL_Quit();
	}
} //unnamed namespace

///----------------------------------------------------------------------------
///following http://twinklebeardev.blogspot.co.uk/2012/07/lesson-1-hello-world.html
///----------------------------------------------------------------------------
int main() {
	std::cout << GameName << " v" << GameVersionMajor << "." << GameVersionMinor << std::endl;

	InitSDLStuff sdlstuff;
	try {
		InitSDL(sdlstuff);
	}
	catch (const std::runtime_error& e) {
		std::cerr << "Error during SDL2 initialization:\n";
		std::cerr << e.what() << std::endl;
	}

	ClearIFN(sdlstuff);
	std::cout << "Quitting now" << std::endl;
	return 0;
}