menu.cpp
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menu.cpp
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	/***************************************************************************
	menu.cpp - description
	-------------------
	begin : Sun Aug 3 2003
	copyright : (C) 2003 by upi
	email : upi@apocalypse.rulez.org
	***************************************************************************/

	#include "SDL.h"
	#include "SDL_video.h"

	#include "menu.h"
	#include "gfx.h"
	#include "State.h"
	#include "common.h"
	#include "Audio.h"
	#include "Backend.h"
	#include "sge_tt_text.h"
	#include "sge_surface.h"
	#include "MortalNetwork.h"

	#include <stdarg.h>


	enum
	{
	/* Master menu structure:
	MAIN MENU
	*/
	MENU_UNKNOWN,
	MENU_SURRENDER,
	MENU_SINGLE_PLAYER,
	MENU_EASY,
	MENU_MEDIUM,
	MENU_HARD,
	MENU_MULTI_PLAYER,
	MENU_NETWORK_GAME,
	MENU_SERVER,
	MENU_HOSTNAME,
	MENU_NICK,
	MENU_CONNECT,
	MENU_CANCEL,
	MENU_OPTIONS,
	MENU_GAME_SPEED,
	MENU_GAME_TIME, // ( :30 - 5:00 )
	MENU_TOTAL_HIT_POINTS, // ( 25 - 1000 )
	MENU_SOUND,
	MENU_CHANNELS, // MONO / STEREO

	MENU_MIXING_RATE, // 11kHz / 22kHz / 44.1 kHz
	MENU_BITS, // 8 bit / 16 bit
	MENU_MUSIC_VOLUME, // (0% - 100%)
	MENU_SOUND_VOLUME, // (0% - 100%)
	MENU_SOUND_OK,
	MENU_FULLSCREEN,
	MENU_KEYS_RIGHT,
	MENU_KEYS_LEFT,
	MENU_OPTIONS_OK,
	MENU_LANGUAGE,
	MENU_INFO,
	MENU_QUIT, // (confirm)
	};


	const char* g_ppcGameTime[] = { "0:30", "0:45", "1:00", "1:15", "1:30", "1:45", "2:00", "3:00", "5:00", NULL };
	const int g_piGameTime[] = { 30, 45, 60, 75, 90, 105, 120, 180, 300 };

	const char* g_ppcHitPoints[] = { "BABY", "VERY LOW", "LOW", "NORMAL", "HIGH", "VERY HIGH", "NEAR IMMORTAL", NULL };
	const int g_piHitPoints[] = { 1, 10, 50, 100, 150, 200, 500 };
	const char* g_ppcGameSpeed[] = { "SNAIL RACE", "SLOW", "NORMAL", "TURBO", "KUNG-FU MOVIE", NULL };
	const int g_piGameSpeed[] = { 16, 14, 12, 10, 8 };
	const char* g_ppcChannels[] = { "MONO", "STEREO", NULL };
	const int g_piChannels[] = { 1, 2 };
	const char* g_ppcMixingRate[] = { "LOW", "MEDIUM", "HIGH", NULL };
	const int g_piMixingRate[] = { 1, 2, 3 };
	const char* g_ppcMixingBits[] = { "8 bit", "16 bit", NULL };
	const int g_piMixingBits[] = { 1, 2 };


	const char* g_ppcVolume[] = { "OFF", "10%", "20%", "30%", "40%", "50%", "60%", "70%", "80%", "90%", "100%", NULL };
	const int g_piVolume[] = { 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100 };

	const char* g_ppcLanguage[] = { "English", "Spanish", "Francais", "Magyar", NULL };
	const int g_piLanguage[] = { 0, 1, 2, 3 };
	const char* g_ppcLanguageCodes[] = { "en", "es", "fr", "hu" };

	const char* g_ppcServer[] = { "Connect to game", "Create game", NULL };
	int g_piServer[] = { 0, 1 };


	SDL_Surface* poBackground = NULL;



	void InputKeys( int a_iPlayerNumber )
	{
	SDL_BlitSurface( poBackground, NULL, gamescreen, NULL );
	DrawGradientText( "Input keys", titleFont, 10, gamescreen );
	SDL_Flip( gamescreen );

	static const char* apcKeyNames[9] = { "up", "down", "left", "right", "block",
	"low punch", "high punch", "low kick", "high kick" };
	char acBuffer[1024];
	char acSide[128];
	char acFormat[128];
	int iY = 75;
	int iYIncrement = 35;
	SDLKey enKey;

	DrawTextMSZ( "Press Escape to abort", inkFont, 320, iY, AlignHCenter\|UseShadow, C_LIGHTGRAY, gamescreen );
	iY += iYIncrement + 10;

	strcpy( acSide, Translate(a_iPlayerNumber ? "Left" : "Right") );
	strcpy( acFormat, Translate("%s player-'%s'?") );

	for ( int i=0; i<9; ++i )
	{
	// 1. PRINT THE FONT AND THE CURRENT KEYSYM
	sprintf( acBuffer, acFormat, acSide, Translate(apcKeyNames[i]) );
	int w = DrawTextMSZ( acBuffer, inkFont, 10, iY, UseShadow, C_WHITE, gamescreen );
	enKey = (SDLKey) g_oState.m_aiPlayerKeys[a_iPlayerNumber][i];
	g_oBackend.PerlEvalF( "GetKeysym(%d);", enKey );
	DrawTextMSZ( g_oBackend.GetPerlString("keysym"), inkFont, w+30, iY, UseShadow, C_LIGHTCYAN, gamescreen );

	// 2. INPUT THE NEW KEY

	enKey = GetKey();

	if ( SDLK_ESCAPE == enKey )
	{
	SDL_BlitSurface( poBackground, NULL, gamescreen, NULL );
	SDL_Flip( gamescreen );

	return;
	}

	// 3. PRINT THE NEW KEY

	g_oState.m_aiPlayerKeys[a_iPlayerNumber][i] = enKey;

	g_oBackend.PerlEvalF( "GetKeysym(%d);", enKey );
	sge_Blit( poBackground, gamescreen, w+10, iY, w+10, iY, 640, 50 );
	DrawTextMSZ( g_oBackend.GetPerlString("keysym"), inkFont, w+30, iY, UseShadow, C_WHITE, gamescreen );
	sge_UpdateRect( gamescreen, w+10, iY, 640, 50 );
	iY += iYIncrement;
	}

	DrawTextMSZ( "Thanks!", inkFont, 320, iY + 20, UseShadow \| AlignCenter, C_WHITE, gamescreen );
	GetKey();
	SDL_BlitSurface( poBackground, NULL, gamescreen, NULL );
	SDL_Flip( gamescreen );
	}




	/***************************************************************************
	NETWORK MENU DEFINITION
	***************************************************************************/

	static int g_iMessageY;
	static char g_acMessageBuffer[1024];


	void MortalNetworkResetMessages( bool a_bClear )
	{
	if ( a_bClear )
	{
	SDL_FillRect( gamescreen, NULL, C_BLACK );
	SDL_Flip( gamescreen );
	g_iMessageY = 185;
	}
	else
	{
	g_iMessageY = 185;
	}
	}

	void MortalNetworkMessage( const char* format, ... )
	{
	char acBuffer[1024];
	va_list ap;
	va_start( ap, format );
	vsnprintf( acBuffer, 1023, format, ap );
	va_end( ap );
	DrawTextMSZ( acBuffer, impactFont, 20, g_iMessageY, 0, C_LIGHTGRAY, gamescreen );
	g_iMessageY += 25;
	}


	bool MortalNetworkCheckKey()
	{
	SDL_Event event;
	while (SDL_PollEvent(&event))
	{
	switch (event.type)
	{
	case SDL_QUIT:
	g_oState.m_bQuitFlag = true;
	return true;

	case SDL_KEYDOWN:
	{
	return true;
	}
	break;
	} // switch statement
	} // Polling events

	return false;
	}



	const char* FindString( const char* a_ppcNames[], const int a_piValues[], int a_iValue )
	{
	for ( int i=0; NULL != a_ppcNames[i]; ++i )
	{
	if ( a_iValue == a_piValues[i] )
	{
	return a_ppcNames[i];
	}
	}
	return "(unknown)";
	}



	const char* GetGameTimeString( int a_iValue )
	{
	strcpy( g_acMessageBuffer, Translate("GAME TIME: ") );
	strcat( g_acMessageBuffer, Translate(FindString( g_ppcGameTime, g_piGameTime, a_iValue)) );
	return g_acMessageBuffer;
	}

	const char* GetGameSpeedString( int a_iValue )
	{
	strcpy( g_acMessageBuffer, Translate("GAME SPEED: ") );
	strcat( g_acMessageBuffer, Translate(FindString( g_ppcGameSpeed, g_piGameSpeed, a_iValue)) );
	return g_acMessageBuffer;
	}

	const char* GetHitPointsString( int a_iValue )
	{
	strcpy( g_acMessageBuffer, Translate("STAMINA: ") );
	strcat( g_acMessageBuffer, Translate(FindString( g_ppcHitPoints, g_piHitPoints, a_iValue) ) );
	return g_acMessageBuffer;
	}





	class CNetworkMenu: public Menu
	{
	public:
	CNetworkMenu(): Menu( "Network Play Setup" )
	{
	m_bOK = false;
	m_bServer = g_oState.m_bServer;
	m_sHostname = g_oState.m_acLatestServer;
	m_sNick = g_oState.m_acNick;

	AddMenuItem( "START NETWORK GAME!", SDLK_UNKNOWN, MENU_CONNECT );
	m_poNickMenuItem = AddTextMenuItem( "Nickname: ", m_sNick.c_str(), MENU_NICK );
	AddEnumMenuItem( "Network mode: ", m_bServer ? 1 : 0, g_ppcServer, g_piServer, MENU_SERVER );
	m_poServerMenuItem = AddTextMenuItem( "Connect to: ", m_sHostname.c_str(), MENU_HOSTNAME );
	m_poServerMenuItem->SetEnabled(!m_bServer);

	MenuItem* poItem = AddMenuItem( "Cancel", SDLK_UNKNOWN, MENU_CANCEL );
	SDL_Rect oRect;
	oRect.x = gamescreen->w - 150; oRect.w = 150;
	oRect.y = gamescreen->h - 50; oRect.h = 30;
	poItem->SetPosition( oRect );
	}

	~CNetworkMenu() {}

	void Connect()
	{
	Clear();
	SDL_Flip( gamescreen );

	MortalNetworkResetMessages( false );
	strcpy( g_oState.m_acNick, m_sNick.c_str() );
	m_bOK = g_poNetwork->Start( m_bServer ? NULL : m_sHostname.c_str() );

	if ( m_bOK )
	{
	g_oState.SetServer( m_bServer ? NULL : m_sHostname.c_str() );
	g_oState.m_enGameMode = SState::IN_NETWORK;
	m_bDone = true;
	m_iReturnCode = 100;
	}
	else
	{
	const char* acError = g_poNetwork->GetLastError();
	DrawTextMSZ( "Couldn't connect", inkFont, 320, g_iMessageY, AlignHCenter\|UseShadow, C_LIGHTRED, gamescreen );
	DrawTextMSZ( acError, impactFont, 320, g_iMessageY + 40, AlignHCenter\|UseShadow, C_LIGHTRED, gamescreen, false );
	}

	if ( !g_oState.m_bQuitFlag )
	{
	if ( m_bOK )
	{
	// Wait for 1 sec, or keystroke.
	for ( int i=0; i<10; ++i )
	{
	if ( MortalNetworkCheckKey() ) break;
	SDL_Delay( 100 );
	}
	}
	else
	{
	GetKey();
	}
	Clear();
	Draw();
	}

	if ( g_oState.m_bQuitFlag )
	{
	m_bDone = true;
	m_iReturnCode = 100;
	}
	}

	void EnterName( const char* a_pcTitle, std::string& a_rsTarget, TextMenuItem* a_poMenuItem, int a_iMaxlen )
	{
	Clear();
	Draw();

	if ( a_iMaxlen > 255 ) a_iMaxlen = 255;
	char acBuffer[256];
	strncpy( acBuffer, a_rsTarget.c_str(), 255 );
	acBuffer[255] = 0;

	int x = DrawTextMSZ( a_pcTitle, impactFont, 20, 305, 0, C_WHITE, gamescreen );

	int iRetval;
	{
	CReadline oReadline( gamescreen, impactFont, acBuffer, strlen(acBuffer), a_iMaxlen,
	20+x, 305 + sge_TTF_FontAscent(impactFont), 600, C_LIGHTCYAN, C_BLACK, 255 );
	iRetval = oReadline.Execute();
	}

	if ( iRetval == -1 )
	{
	m_bDone = true;
	m_iReturnCode = 100;
	g_oState.m_bQuitFlag = true;
	}
	if ( iRetval > 0 )
	{
	a_rsTarget = acBuffer;
	a_poMenuItem->SetValue( acBuffer );
	}
	Clear();
	Draw();
	}

	void ItemActivated( int a_iItemCode, MenuItem* a_poMenuItem )
	{
	switch ( a_iItemCode )
	{
	case MENU_SERVER:
	{
	EnumMenuItem* poItem = (EnumMenuItem*) a_poMenuItem;
	if ( m_bServer )
	{
	poItem->Decrement();
	}
	else
	{
	poItem->Increment();
	}
	break;
	}

	case MENU_CONNECT:
	Connect();
	break;

	case MENU_CANCEL:
	m_bOK = false;
	m_bDone = true;
	m_iReturnCode = -1;
	break;

	case MENU_HOSTNAME:
	EnterName( "Server name: ", m_sHostname, m_poServerMenuItem,128 );
	break;

	case MENU_NICK:
	EnterName( "Nickname: ", m_sNick, m_poNickMenuItem, 12 );
	break;
	}
	}

	void ItemChanged( int a_iItemCode, int a_iValue, MenuItem* a_poMenuItem )
	{
	switch ( a_iItemCode )
	{
	case MENU_SERVER:
	m_bServer = a_iValue;
	m_poServerMenuItem->SetEnabled(!m_bServer);
	break;
	}
	}


	protected:
	bool m_bOK;
	bool m_bServer;
	std::string m_sHostname;
	std::string m_sNick;

	TextMenuItem* m_poServerMenuItem;
	TextMenuItem* m_poNickMenuItem;
	};




	/***************************************************************************
	MENUITEM DEFINITION
	***************************************************************************/



	MenuItem::MenuItem( Menu* a_poMenu, const char* a_pcUtf8Text, int a_iCode )
	: m_sUtf8Text( a_pcUtf8Text )
	{
	m_poMenu = a_poMenu;
	m_iCode = a_iCode;

	m_oPosition.x = m_oPosition.y = 100;
	m_oPosition.w = m_oPosition.h = 100;
	m_bCenter = true;
	m_iHighColor = C_WHITE;
	m_iLowColor = C_LIGHTGRAY;
	m_iInactiveColor = C_DARKGRAY;
	m_iBackgroundColor = C_BLACK;
	m_bActive = false;
	m_bEnabled = true;

	}


	MenuItem::~MenuItem()
	{
	}

	void MenuItem::Draw()
	{
	if ( NULL != poBackground )
	{
	SDL_BlitSurface( poBackground, &m_oPosition, gamescreen, &m_oPosition );
	}
	else
	{
	SDL_FillRect( gamescreen, &m_oPosition, 0 );
	}


	int iX = m_oPosition.x;
	int iY = m_oPosition.y;

	if ( m_bCenter )
	{
	iX += m_oPosition.w / 2;
	}

	DrawTextMSZ( m_sUtf8Text.c_str(), inkFont, iX, iY,
	UseTilde \| UseShadow \| (m_bCenter ? AlignHCenter : 0),
	m_bEnabled ? (m_bActive ? m_iHighColor : m_iLowColor) : m_iInactiveColor,
	gamescreen );

	SDL_UpdateRect( gamescreen, m_oPosition.x, m_oPosition.y, m_oPosition.w, m_oPosition.h );
	}


	void MenuItem::Clear()
	{
	// debug( "Clear: %d:%d %dx%d\n", m_oPosition.x, m_oPosition.y, m_oPosition.w, m_oPosition.h );
	if (poBackground )
	{
	SDL_Rect oDest = m_oPosition;
	SDL_BlitSurface( poBackground, &m_oPosition, gamescreen, &oDest );
	}
	else
	{
	SDL_FillRect( gamescreen, &m_oPosition, C_WHITE );

	}

	SDL_UpdateRect( gamescreen, m_oPosition.x, m_oPosition.y, m_oPosition.w, m_oPosition.h );
	}


	void MenuItem::Activate()
	{
	if ( m_poMenu )
	{
	m_poMenu->ItemActivated( m_iCode, this );
	}
	}



	void MenuItem::SetText( const char* a_pcUtf8Text, bool a_bCenter )
	{
	m_sUtf8Text = a_pcUtf8Text;
	m_bCenter = a_bCenter;
	Draw();
	}

	void MenuItem::SetPosition( const SDL_Rect& a_roPosition )
	{
	m_oPosition = a_roPosition;
	}

	void MenuItem::SetActive( bool a_bActive )
	{
	if ( m_bActive == a_bActive )
	{
	return;
	}
	m_bActive = a_bActive;
	Draw();
	}

	void MenuItem::SetEnabled( bool a_bEnabled )
	{
	if ( m_bEnabled == a_bEnabled )
	{
	return;
	}
	m_bEnabled = a_bEnabled;
	Draw();
	}




	/***************************************************************************
	ENUMMENUITEM DEFINITION
	***************************************************************************/



	EnumMenuItem::EnumMenuItem( Menu* a_poMenu, int a_iInitialValue, const char* a_pcUtf8Text, int a_iCode )
	: MenuItem( a_poMenu, a_pcUtf8Text, a_iCode )
	{
	m_sUtf8Title = a_pcUtf8Text;
	m_iMax = -1;
	m_iValue = a_iInitialValue;
	}

	EnumMenuItem::~EnumMenuItem()
	{
	}


	void EnumMenuItem::Draw()
	{
	m_sUtf8Text = Translate( m_sUtf8Title.c_str() );
	if ( m_iValue <= m_iMax )
	{
	m_sUtf8Text += Translate(m_ppcNames[m_iValue]);
	}
	if ( m_iValue > 0 )
	{
	m_sUtf8Text = "< " + m_sUtf8Text;
	}
	if ( m_iValue < m_iMax )
	{
	m_sUtf8Text += " >";
	}

	MenuItem::Draw();
	}



	void EnumMenuItem::Increment()
	{
	if ( m_iValue < m_iMax )
	{
	++m_iValue;
	Draw();
	m_poMenu->ItemChanged( m_iCode, m_piValues[m_iValue], this );
	Audio->PlaySample( "ding.voc" );
	}
	}



	void EnumMenuItem::Decrement()
	{
	if ( m_iValue > 0 )
	{
	--m_iValue;
	Draw();
	m_poMenu->ItemChanged( m_iCode, m_piValues[m_iValue], this );
	Audio->PlaySample( "ding.voc" );
	}
	}




	void EnumMenuItem::SetEnumValues( const char ** a_ppcNames, const int * a_piValues )
	{
	m_ppcNames = a_ppcNames;
	m_piValues = a_piValues;

	int i;
	bool bFoundValue = false;


	for ( i=0; NULL != a_ppcNames[i]; ++i )
	{
	if ( !bFoundValue &&
	m_iValue == a_piValues[i] )
	{
	bFoundValue = true;
	m_iValue = i;
	}
	}

	if ( !bFoundValue )
	{
	m_iValue = 0;
	}

	m_iMax = i-1;
	}






	/***************************************************************************
	TextMenuItem DEFINITION
	***************************************************************************/



	TextMenuItem::TextMenuItem( Menu* a_poMenu, const char* a_pcInitialValue, const char* a_pcUtf8Title, int a_iCode )
	: MenuItem( a_poMenu, a_pcUtf8Title, a_iCode )

	{
	m_sTitle = a_pcUtf8Title;
	m_sValue = a_pcInitialValue;
	}


	TextMenuItem::~TextMenuItem()
	{
	}


	void TextMenuItem::Draw()
	{
	m_sUtf8Text = Translate( m_sTitle.c_str() );
	m_sUtf8Text += m_sValue;

	MenuItem::Draw();
	}


	void TextMenuItem::SetValue( const char* a_pcValue )
	{
	m_sValue = a_pcValue;
	Draw();
	}









	/***************************************************************************

	MENU DEFINITION
	***************************************************************************/



	Menu::Menu( const char* a_pcTitle )
	: m_sTitle( a_pcTitle )
	{
	m_iCurrentItem = 0;
	m_iReturnCode = -1;
	m_bDone = false;
	}


	Menu::~Menu()
	{
	ItemIterator it;

	for ( it = m_oItems.begin(); it != m_oItems.end(); ++it )
	{
	delete *it;
	}
	}


	MenuItem* Menu::AddMenuItem( const char* a_pcUtf8Text, SDLKey a_tShortcut, int a_iCode )
	{
	MenuItem* poItem = new MenuItem( this, a_pcUtf8Text, a_iCode );
	return AddMenuItem( poItem );
	}



	EnumMenuItem* Menu::AddEnumMenuItem( const char* a_pcUtf8Text, int a_iInitialValue,
	const char** a_ppcNames, const int* a_piValues, int a_iCode )
	{
	EnumMenuItem* poItem = new EnumMenuItem( this, a_iInitialValue, a_pcUtf8Text, a_iCode );
	poItem->SetEnumValues( a_ppcNames, a_piValues );

	AddMenuItem( poItem );
	return poItem;
	}


	TextMenuItem* Menu::AddTextMenuItem( const char* a_pcTitle, const char* a_pcValue, int a_iCode )
	{
	TextMenuItem* poItem = new TextMenuItem( this, a_pcValue, a_pcTitle, a_iCode );
	AddMenuItem( poItem );
	return poItem;
	}




	MenuItem* Menu::AddMenuItem( MenuItem* a_poItem )
	{
	m_oItems.push_back( a_poItem );

	SDL_Rect oRect;
	oRect.x = 0; oRect.w = gamescreen->w;
	oRect.y = m_oItems.size() * 40 + 100;
	oRect.h = 43;

	a_poItem->SetPosition( oRect );

	return a_poItem;
	}


	void Menu::AddOkCancel( int a_iOkCode )
	{
	SDL_Rect oRect;
	oRect.x = 0; oRect.w = 150;
	oRect.y = gamescreen->h - 50; oRect.h = 30;

	MenuItem* poItem = AddMenuItem( "~OK", SDLK_o, a_iOkCode );
	poItem->SetPosition( oRect );

	// poItem = AddMenuItem( "Cancel", SDLK_UNKNOWN, 0 );
	oRect.x = gamescreen->w - 150;
	poItem->SetPosition( oRect );
	}


	void Menu::InvokeSubmenu( Menu* a_poMenu )
	{
	Audio->PlaySample( "strange_button.voc" );
	Clear();

	m_iReturnCode = a_poMenu->Run();
	if ( g_oState.m_bQuitFlag )
	{
	m_iReturnCode = 100;
	m_bDone = true;
	}

	if ( m_iReturnCode < 0 )
	{
	Audio->PlaySample( "pop.voc" );
	Draw();
	}
	else
	{
	m_iReturnCode --;
	m_bDone = true;
	}
	}


	void Menu::ItemActivated( int a_iItemCode, MenuItem* a_poMenuItem )
	{
	debug( "Menu::ItemActivated( %d )\n", a_iItemCode );

	switch ( a_iItemCode )
	{
	case MENU_QUIT:
	m_bDone = true;

	m_iReturnCode = 100;
	g_oState.m_bQuitFlag = true;
	break;

	case MENU_SURRENDER:
	m_bDone = true;
	m_iReturnCode = 100;
	if ( SState::IN_NETWORK == g_oState.m_enGameMode )
	{
	g_poNetwork->Stop();
	}
	g_oState.m_enGameMode = SState::IN_DEMO;
	break;

	case MENU_NETWORK_GAME:
	{
	Menu* poMenu = new CNetworkMenu();
	InvokeSubmenu( poMenu );
	delete poMenu;
	break;
	}

	case MENU_MULTI_PLAYER:
	m_bDone = true;
	m_iReturnCode = 100;
	g_oState.m_enGameMode = SState::IN_MULTI;
	break;

	case MENU_FULLSCREEN:
	Audio->PlaySample( "strange_button.voc" );
	g_oState.ToggleFullscreen();
	if ( NULL != poBackground )
	{
	SDL_BlitSurface( poBackground, NULL, gamescreen, NULL );
	}
	else
	{
	SDL_FillRect( gamescreen, NULL, 0 );
	}
	a_poMenuItem->SetText( g_oState.m_bFullscreen ? "~FULLSCREEN ON" : "~FULLSCREEN OFF", true );
	Draw();
	break;

	case MENU_OPTIONS_OK:
	m_bDone = true;
	m_iReturnCode = -1;
	break;

	case MENU_OPTIONS:
	{
	Menu* poMenu = new Menu( "Options" );
	if ( g_oState.m_enGameMode != SState::IN_NETWORK \|\| g_poNetwork->IsMaster() )
	{
	poMenu->AddEnumMenuItem( "GAME SPEED: ", g_oState.m_iGameSpeed, g_ppcGameSpeed, g_piGameSpeed, MENU_GAME_SPEED );
	poMenu->AddEnumMenuItem( "GAME TIME: ", g_oState.m_iGameTime, g_ppcGameTime, g_piGameTime, MENU_GAME_TIME );
	poMenu->AddEnumMenuItem( "STAMINA: ", g_oState.m_iHitPoints, g_ppcHitPoints, g_piHitPoints, MENU_TOTAL_HIT_POINTS );
	}
	poMenu->AddMenuItem( "~SOUND", SDLK_s, MENU_SOUND );
	poMenu->AddMenuItem( g_oState.m_bFullscreen ? "~FULLSCREEN ON" : "~FULLSCREEN OFF", SDLK_f, MENU_FULLSCREEN );
	poMenu->AddMenuItem( "~RIGHT PLAYER KEYS", SDLK_r, MENU_KEYS_RIGHT );
	poMenu->AddMenuItem( "~LEFT PLAYER KEYS", SDLK_l, MENU_KEYS_LEFT );
	poMenu->AddOkCancel( MENU_OPTIONS_OK );

	InvokeSubmenu( poMenu );
	delete poMenu;
	break;
	}

	case MENU_SOUND:
	{
	Menu* poMenu = new Menu( "Sound" );
	poMenu->AddEnumMenuItem( "CHANNELS: ", 1, g_ppcChannels, g_piChannels, MENU_CHANNELS )->SetEnabled(false);
	poMenu->AddEnumMenuItem( "SOUND QUALITY: ", 2, g_ppcMixingRate, g_piMixingRate, MENU_MIXING_RATE )->SetEnabled(false);
	poMenu->AddEnumMenuItem( "SOUND FIDELITY: ", 2, g_ppcMixingBits, g_piMixingBits, MENU_BITS )->SetEnabled(false);
	poMenu->AddEnumMenuItem( "MUSIC VOLUME: ", g_oState.m_iMusicVolume, g_ppcVolume, g_piVolume, MENU_MUSIC_VOLUME );
	poMenu->AddEnumMenuItem( "EFFECTS VOLUME: ", g_oState.m_iSoundVolume, g_ppcVolume, g_piVolume, MENU_SOUND_VOLUME );
	poMenu->AddOkCancel( MENU_SOUND_OK );

	InvokeSubmenu( poMenu );
	delete poMenu;
	break;
	}

	case MENU_SOUND_OK:
	m_bDone = true;
	m_iReturnCode = -1;
	break;

	case MENU_KEYS_LEFT:
	InputKeys(1);
	Draw();
	break;

	case MENU_KEYS_RIGHT:
	InputKeys(0);
	Draw();
	break;

	default:
	break;

	}
	}



	void Menu::ItemChanged( int a_iItemCode, int a_iValue, MenuItem* a_poMenuItem )
	{
	debug( "Menu::ItemChanged( %d, %d )\n", a_iItemCode, a_iValue );

	switch ( a_iItemCode )
	{
	case MENU_MUSIC_VOLUME:
	g_oState.m_iMusicVolume = a_iValue;
	Audio->SetMusicVolume( a_iValue );
	break;

	case MENU_SOUND_VOLUME:
	g_oState.m_iSoundVolume = a_iValue;
	break;

	case MENU_GAME_TIME:
	g_oState.m_iGameTime = a_iValue;
	break;

	case MENU_GAME_SPEED:
	g_oState.m_iGameSpeed = a_iValue;
	break;

	case MENU_TOTAL_HIT_POINTS:
	g_oState.m_iHitPoints = a_iValue;
	break;

	case MENU_LANGUAGE:
	g_oState.SetLanguage( g_ppcLanguageCodes[ a_iValue ] );
	Clear();
	Draw();
	break;
	} // end of switch a_iItemCode
	}


	/** Run executes the menus, maybe invoking submenus as well. The
	menus modify the global game state.

	Returns 0, or the number of parent menus that should be cleared. */

	int Menu::Run()
	{
	if ( m_oItems[m_iCurrentItem]->GetEnabled() )
	{
	m_oItems[m_iCurrentItem]->SetActive(true);
	}
	else
	{
	FocusNext();
	}

	Draw();

	while ( !m_bDone )
	{
	SDLKey enKey = GetKey();

	if ( g_oState.m_bQuitFlag \|\|
	SDLK_ESCAPE == enKey )

	{
	m_bDone = true;
	m_iReturnCode = -1;
	break;
	}

	switch ( enKey )
	{
	case SDLK_UP:
	{
	FocusPrev();
	break;
	} // end of SDLK_UP


	case SDLK_DOWN:
	{
	FocusNext();
	break;
	} // end of SDLK_DOWN

	case SDLK_LEFT:
	{
	MenuItem* poItem = m_oItems[m_iCurrentItem];
	poItem->Decrement();
	break;
	}

	case SDLK_RIGHT:
	{
	MenuItem* poItem = m_oItems[m_iCurrentItem];
	poItem->Increment();
	break;
	}


	case SDLK_RETURN:
	{
	MenuItem* poItem = m_oItems[m_iCurrentItem];
	if ( poItem->GetEnabled() )
	{
	poItem->Activate();
	}
	}

	default:
	break;
	} // end of switch
	}

	Clear();

	return m_iReturnCode;
	}



	void Menu::Draw()
	{
	DrawGradientText( m_sTitle.c_str(), titleFont, 20, gamescreen );

	for ( ItemIterator it=m_oItems.begin(); it!=m_oItems.end(); ++it )
	{
	(*it)->Draw();
	}

	SDL_Flip( gamescreen );

	}



	void Menu::FocusNext()
	{

	MenuItem* poItem = NULL;
	int iNextItem;

	for ( iNextItem = m_iCurrentItem+1; iNextItem < (int) m_oItems.size(); ++iNextItem )
	{
	poItem = m_oItems[iNextItem];
	if ( poItem->GetEnabled() )
	{
	break;
	}
	poItem = NULL;
	}

	if ( NULL != poItem )
	{
	Audio->PlaySample("strange_quack.voc");
	m_oItems[m_iCurrentItem]->SetActive(false);
	m_oItems[iNextItem]->SetActive(true);
	m_iCurrentItem = iNextItem;
	}
	}



	void Menu::FocusPrev()
	{
	MenuItem* poItem = NULL;

	int iPrevItem;

	for ( iPrevItem = m_iCurrentItem-1; iPrevItem >= 0; --iPrevItem )
	{
	poItem = m_oItems[iPrevItem];
	if ( poItem->GetEnabled() )
	{
	break;
	}
	poItem = NULL;
	}

	if ( NULL != poItem )
	{
	Audio->PlaySample("strange_quack.voc");
	m_oItems[m_iCurrentItem]->SetActive(false);
	m_oItems[iPrevItem]->SetActive(true);
	m_iCurrentItem = iPrevItem;
	}
	}



	void Menu::Clear()
	{
	if (poBackground)
	{
	SDL_BlitSurface( poBackground, 0, gamescreen, 0 );
	}
	else
	{
	SDL_FillRect( gamescreen, NULL, 0 );
	}
	}









	void DoMenu( bool a_bDrawBackground )
	{
	Audio->PlaySample( "crashhh.voc" );

	poBackground = SDL_ConvertSurface( gamescreen, gamescreen->format, SDL_SWSURFACE );
	if ( NULL == poBackground )
	{
	debug( "DoMenu: Couldn't allocate background.\n" );
	}
	else
	{
	int i;
	SDL_Rect oRect;
	oRect.x = 0; oRect.w = poBackground->w; oRect.h = 1;

	for ( i=0; i<poBackground->h; i += 2 )
	{
	oRect.y = i;
	SDL_FillRect( poBackground, &oRect, C_BLACK );
	}

	oRect.w = 1; oRect.y = 0; oRect.h = poBackground->h;


	for ( i=0; i<poBackground->w; i+=2 )
	{
	oRect.x = i;
	SDL_FillRect(poBackground, &oRect, C_BLACK );
	}

	SDL_BlitSurface( poBackground, 0, gamescreen, 0 );
	SDL_Flip( gamescreen );
	}

	Menu oMenu( "Main Menu" );

	if ( SState::IN_DEMO == g_oState.m_enGameMode )
	{
	oMenu.AddMenuItem( "~SINGLE PLAYER GAME", SDLK_s, MENU_SINGLE_PLAYER )->SetEnabled(false);
	oMenu.AddMenuItem( "~NETWORK GAME", SDLK_n, MENU_NETWORK_GAME );
	oMenu.AddMenuItem( "~MULTI PLAYER GAME", SDLK_m, MENU_MULTI_PLAYER );
	}
	else
	{
	oMenu.AddMenuItem( "~SURRENDER GAME", SDLK_s, MENU_SURRENDER );
	}
	oMenu.AddEnumMenuItem( "~LANGUAGE: ", g_oState.m_iLanguageCode, g_ppcLanguage, g_piLanguage, MENU_LANGUAGE );

	oMenu.AddMenuItem( "~OPTIONS", SDLK_o, MENU_OPTIONS );
	oMenu.AddMenuItem( "~INFO", SDLK_i, MENU_INFO )->SetEnabled(false);
	oMenu.AddMenuItem( "QUIT", SDLK_UNKNOWN, MENU_QUIT );


	oMenu.Run();

	if ( !g_oState.m_bQuitFlag )
	{
	Audio->PlaySample("shades_rollup.voc");
	}

	//SDL_BlitSurface( poBackground, 0, gamescreen, 0 );
	//SDL_Flip( gamescreen );
	SDL_FreeSurface( poBackground );
	poBackground = NULL;
	}

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