#include "game.hpp"
#include "gamestate.hpp"


game::game()
{ }

game::~game()
{ }



bool game::Init()
{
	if ( SDL_Init ( SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_AUDIO ) == -1 )
	{
		cerr << "[ERROR] Cannot init SDL" << endl;

		m_bRunning = false;

		return false;
	}

	SDL_EnableUNICODE ( SDL_ENABLE );


	SDL_WM_SetCaption ( "[SG]Tetris", NULL );

	m_pScreen = SDL_SetVideoMode ( WIDTH * SIZE + 130, HEIGHT * SIZE, 32, SDL_HWSURFACE | SDL_DOUBLEBUF );

	if ( m_pScreen == NULL )
	{
		cerr << "[ERROR] Cannot setup screen" << endl;

		m_bRunning = false;

		return false;
	}


	if ( TTF_Init() )
	{
		cerr << "[ERROR] Cannot init SDL_ttf" << endl;

		m_bRunning = false;

		return false;
	}


	m_bRunning = Load();
	m_bGameOver = false;
	tick = 0;

	return m_bRunning;
}

bool game::Load()
{
	fontMenu = TTF_OpenFont ( "data-latin.ttf", 38 );

	if ( fontMenu == NULL )
	{
		cerr << "[ERROR] Cannot load font 'data-latin.ttf'" << endl;

		return false;
	}


	fontGame = TTF_OpenFont ( "handelgotd.ttf", 30 );

	if ( fontGame == NULL )
	{
		cerr << "[ERROR] Cannot load font 'handelgotd.ttf'" << endl;

		return false;
	}


	return true;
}

void game::ChangeState ( GameState * state )
{
	// cleanup the current state
	if ( !states.empty() )
	{
		states.back()->Clean();
		states.pop_back();
	}

	// store and init the new state
	states.push_back ( state );
	states.back()->Init();
}

void game::PushState ( GameState * state )
{
	// pause current state
	if ( !states.empty() )
	{
		states.back()->Pause();
	}

	// store and init the new state
	states.push_back ( state );
	states.back()->Init();
}

void game::PopState()
{
	// cleanup the current state
	if ( !states.empty() )
	{
		states.back()->Clean();
		states.pop_back();
	}

	// resume previous state
	if ( !states.empty() )
	{
		states.back()->Resume();
	}
}

void game::DelStateF()
{
	// cleanup the first state
	if ( !states.empty() )
	{
		states.front()->Clean();
		states.erase(states.begin());
	}
}

# ifdef DEBUG
	int game::CountStates()
	{
		return states.size();
	}
# endif

void game::HandleEvents()
{
	states.back()->HandleEvents ( this );
}

void game::Update()
{
	states.back()->Update ( this );
}

void game::Draw()
{
	states.back()->Draw ( this );
}


SDL_Surface * game::GetScreen()
{
	return m_pScreen;
}

bool game::Running()
{
	return m_bRunning;
}

void game::Clean()
{
	# ifdef DEBUG
		cout << "Cleanning..." << endl;
	# endif

	TTF_CloseFont ( fontMenu );

	TTF_Quit();
	SDL_Quit();
}

void game::Quit()
{
	m_bRunning = false;

	# ifdef DEBUG
		cout << "Shutting down..." << endl;
	# endif
}

void game::ReduceFPS()
{
	if ( 1000 / FPS > ( SDL_GetTicks() - start ) )
	{
		SDL_Delay ( 1000 / FPS - ( SDL_GetTicks() - start ) );
	}
}

void game::UpdateFPS()
{
	if ( tick <= FPS )
	{
		tick += 1;
	}
	else
	{
		tick = 1;
	}
}

Uint32 game::GetStart()
{
	return start;
}

void game::SetStart ( Uint32 start )
{
	this->start = start;
}

TTF_Font * game::GetfontGame()
{
	return fontGame;
}

TTF_Font * game::GetfontMenu()
{
	return fontMenu;
}