#include "Window.h"

#include "BengineErrors.h"

namespace Bengine {

Window::Window()

{

}

Window::~Window()

{

}

int Window::create(std::string windowName, int screenWidth, int screenHeight, unsigned int currentFlags) {

Uint32 flags = SDL_WINDOW_OPENGL;

_screenWidth = screenWidth;

_screenHeight = screenHeight;

if (currentFlags & INVISIBLE) {

flags |= SDL_WINDOW_HIDDEN;

}

if (currentFlags & FULLSCREEN) {

flags |= SDL_WINDOW_FULLSCREEN_DESKTOP;

}

if (currentFlags & BORDERLESS) {

flags |= SDL_WINDOW_BORDERLESS;

}

//Open an SDL window

_sdlWindow = SDL_CreateWindow(windowName.c_str(), SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, screenWidth, screenHeight, flags);

if (_sdlWindow == nullptr) {

fatalError("SDL Window could not be created!");

}

//Set up our OpenGL context

SDL_GLContext glContext = SDL_GL_CreateContext(_sdlWindow);

if (glContext == nullptr) {

fatalError("SDL_GL context could not be created!");

}

//Set up glew (optional but recommended)

GLenum error = glewInit();

if (error != GLEW_OK) {

fatalError("Could not initialize glew!");

}

//Check the OpenGL version

std::printf("*** OpenGL Version: %s ***\n", glGetString(GL_VERSION));

//Set the background color to blue

glClearColor(0.0f, 0.0f, 1.0f, 1.0f);

//Set VSYNC

SDL_GL_SetSwapInterval(0);

// Enable alpha blend

glEnable(GL_BLEND);

glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

return 0;

}

void Window::swapBuffer() {

SDL_GL_SwapWindow(_sdlWindow);

}

}