add pref "DelayedCreditsReconcile"

stepmania/src/ModeChoice.cpp

@@ -219,6 +219,21 @@ void ModeChoice::Load( int iIndex, CString sChoice )
 }
 
 int GetSidesRequiredToPlayStyle( Style style )
+{
+	switch( GAMEMAN->GetStyleDefForStyle(style)->m_StyleType )
+	{
+	case StyleDef::ONE_PLAYER_ONE_CREDIT:
+		return 1;
+	case StyleDef::TWO_PLAYERS_TWO_CREDITS:
+	case StyleDef::ONE_PLAYER_TWO_CREDITS:
+		return 2;
+	default:
+		ASSERT(0);
+		return 1;
+	}
+}
+
+int GetCreditsRequiredToPlayStyle( Style style )
 {
 	switch( GAMEMAN->GetStyleDefForStyle(style)->m_StyleType )
 	{
@@ -270,9 +285,20 @@ bool ModeChoice::IsPlayable( CString *why ) const
 	if ( m_style != STYLE_INVALID )
 	{
 		int iNumSidesJoined = GAMESTATE->GetNumSidesJoined();
+		int iCredits = GAMESTATE->m_iCoins / PREFSMAN->m_iCoinsPerCredit;
+		int iNumSidesPlusCredits = iNumSidesJoined + iCredits;
+		CLAMP( iNumSidesPlusCredits, 0, NUM_PLAYERS );
+		if( PREFSMAN->m_iCoinMode != COIN_PAY )
+			iNumSidesPlusCredits = NUM_PLAYERS;
+
 		int iNumSidesRequired = GetSidesRequiredToPlayStyle(m_style);
+		int iNumCreditsRequired = GetCreditsRequiredToPlayStyle(m_style);
 		
-		if( iNumSidesRequired != iNumSidesJoined )
+		bool bPlayable = iNumSidesJoined == iNumSidesRequired;
+		if( PREFSMAN->m_bDelayedCreditsReconcile )
+			bPlayable |= iNumSidesJoined < iNumSidesRequired && iNumSidesPlusCredits >= iNumCreditsRequired;
+
+		if( !bPlayable )
 		{
 			if( why )
 				*why = ssprintf( "need %i sides, have %i", iNumSidesRequired, iNumSidesJoined );
@@ -349,6 +375,16 @@ void ModeChoice::Apply( PlayerNumber pn ) const
 	{
 		GAMESTATE->m_CurStyle = m_style;
 
+		// It's possible to choose a style that didn't have enough 
+		// players joined.  If enough players aren't joined, then 
+		// we need to subtract credits for the sides that will be
+		// joined as a result of applying this option.
+		int iNumCreditsRequired = GetCreditsRequiredToPlayStyle(m_style);
+		int iNumCreditsPaid = GAMESTATE->GetNumSidesJoined();
+		int iNumCreditsOwed = iNumCreditsRequired - iNumCreditsPaid;
+		GAMESTATE->m_iCoins -= iNumCreditsOwed * PREFSMAN->m_iCoinsPerCredit;
+
+
 		// If only one side is joined and we picked a style
 		// that requires both sides, join the other side.
 		switch( GAMEMAN->GetStyleDefForStyle(m_style)->m_StyleType )
@@ -357,9 +393,10 @@ void ModeChoice::Apply( PlayerNumber pn ) const
 			break;
 		case StyleDef::TWO_PLAYERS_TWO_CREDITS:
 		case StyleDef::ONE_PLAYER_TWO_CREDITS:
-			int p;
-			for( p=0; p<NUM_PLAYERS; p++ )
-				GAMESTATE->m_bSideIsJoined[p] = true;
+			{
+				FOREACH_PlayerNumber( p )
+					GAMESTATE->m_bSideIsJoined[p] = true;
+			}
 			break;
 		default:
 			ASSERT(0);

stepmania/src/PrefsManager.cpp

@@ -157,6 +157,7 @@ PrefsManager::PrefsManager()
 	m_iCoinMode = COIN_HOME;
 	m_iCoinsPerCredit = 1;
 	m_Premium = NO_PREMIUM;
+	m_bDelayedCreditsReconcile = false;
 	m_iBoostAppPriority = -1;
 	m_bSmoothLines = false;
 	m_ShowSongOptions = YES;
@@ -432,6 +433,7 @@ void PrefsManager::ReadGlobalPrefsFromDisk()
 	ini.GetValue( "Options", "CoinMode",						m_iCoinMode );
 	ini.GetValue( "Options", "CoinsPerCredit",					m_iCoinsPerCredit );
 	ini.GetValue( "Options", "Premium",							(int&)m_Premium );
+	ini.GetValue( "Options", "DelayedCreditsReconcile",			m_bDelayedCreditsReconcile );
 	ini.GetValue( "Options", "BoostAppPriority",				m_iBoostAppPriority );
 	ini.GetValue( "Options", "PickExtraStage",					m_bPickExtraStage );
 	ini.GetValue( "Options", "ComboContinuesBetweenSongs",		m_bComboContinuesBetweenSongs );
@@ -655,6 +657,7 @@ void PrefsManager::SaveGlobalPrefsToDisk() const
 	ini.SetValue( "Options", "CoinMode",						m_iCoinMode );
 	ini.SetValue( "Options", "CoinsPerCredit",					m_iCoinsPerCredit );
 	ini.SetValue( "Options", "Premium",							m_Premium );
+	ini.SetValue( "Options", "DelayedCreditsReconcile",			m_bDelayedCreditsReconcile );
 	ini.SetValue( "Options", "BoostAppPriority",				m_iBoostAppPriority );
 	ini.SetValue( "Options", "PickExtraStage",					m_bPickExtraStage );
 	ini.SetValue( "Options", "ComboContinuesBetweenSongs",		m_bComboContinuesBetweenSongs );

stepmania/src/PrefsManager.h

@@ -147,6 +147,7 @@ public:
 	int				m_iCoinsPerCredit;
 	enum Premium { NO_PREMIUM, DOUBLES_PREMIUM, JOINT_PREMIUM };
 	Premium			m_Premium;
+	bool			m_bDelayedCreditsReconcile;
 	bool			m_bPickExtraStage;
 	bool			m_bComboContinuesBetweenSongs;
 	float			m_fLongVerSongSeconds;

stepmania/src/ScreenSelect.cpp

@@ -144,7 +144,8 @@ void ScreenSelect::Input( const DeviceInput& DeviceI, const InputEventType type,
 {
 //	LOG->Trace( "ScreenSelect::Input()" );
 
-	if( Screen::JoinInput(DeviceI, type, GameI, MenuI, StyleI) )
+	if( MenuI.button == MENU_BUTTON_COIN ||
+		Screen::JoinInput(DeviceI, type, GameI, MenuI, StyleI) )
 	{
 		this->UpdateSelectableChoices();
 		return;	// don't let the screen handle the MENU_START press