simplify

stepmania/src/InputMapper.cpp

@@ -771,15 +771,8 @@ PlayerNumber InputMapper::ControllerToPlayerNumber( GameController controller )
 
 void InputMapper::GameToMenu( const GameInput &GameI, MenuInput &MenuI )
 {
-	MenuI = MenuInput();	// invalid GameInput
-
 	const Game* pGame = GAMESTATE->GetCurrentGame();
-
-	MenuButton mb = pGame->GameInputToMenuButton( GameI );
-	if( mb == MenuButton_INVALID )
-		return;
-
-	MenuI.button = mb;
+	MenuI.button = pGame->GameInputToMenuButton( GameI );
 }
 
 void InputMapper::MenuToGame( const MenuInput &MenuI, PlayerNumber pn, GameInput GameIout[4] )

stepmania/src/Screen.cpp

@@ -190,7 +190,7 @@ void Screen::Input( const InputEventPlus &input )
 	}
 
 	/* Don't make the user hold the back button if they're pressing escape and escape is the back button. */
-	if( input.MenuI.button == MENU_BUTTON_BACK && input.DeviceI.device == DEVICE_KEYBOARD  &&  input.DeviceI.button == KEY_ESC )
+	if( input.MenuI == MENU_BUTTON_BACK && input.DeviceI.device == DEVICE_KEYBOARD  &&  input.DeviceI.button == KEY_ESC )
 	{
 		this->MenuBack( input.pn );
 		return;
@@ -247,7 +247,7 @@ bool Screen::JoinInput( const InputEventPlus &input )
 	if( !GAMESTATE->PlayersCanJoin() )
 		return false;
 
-	if( input.MenuI.IsValid()  &&  input.MenuI.button==MENU_BUTTON_START )
+	if( input.MenuI.IsValid() && input.MenuI == MENU_BUTTON_START )
 	{
 		/* If this side is already in, don't re-join (and re-pay!). */
 		if(GAMESTATE->m_bSideIsJoined[input.pn])

stepmania/src/ScreenAttract.cpp

@@ -74,7 +74,7 @@ void ScreenAttract::AttractInput( const InputEventPlus &input, ScreenWithMenuEle
 				LOG->Trace("ScreenAttract::AttractInput: begin fading to START_SCREEN" );
 
 				/* HandleGlobalInputs() already played the coin sound.  Don't play it again. */
-				if( input.MenuI.button != MENU_BUTTON_COIN )
+				if( input.MenuI != MENU_BUTTON_COIN )
 					SCREENMAN->PlayCoinSound();
 				
 				SOUNDMAN->SetPlayOnlyCriticalSounds( false );	// unmute attract sounds

stepmania/src/ScreenNetRoom.cpp

@@ -77,7 +77,7 @@ void ScreenNetRoom::Init()
 
 void ScreenNetRoom::Input( const InputEventPlus &input )
 {
-	if (((input.MenuI.button == MENU_BUTTON_LEFT) || (input.MenuI.button == MENU_BUTTON_RIGHT)) && (input.type == IET_RELEASE))
+	if ((input.MenuI == MENU_BUTTON_LEFT || input.MenuI == MENU_BUTTON_RIGHT) && input.type == IET_RELEASE)
 		m_RoomWheel.Move(0);
 		
 	ScreenNetSelectBase::Input( input );

stepmania/src/ScreenPlayerOptions.cpp

@@ -84,7 +84,7 @@ void ScreenPlayerOptions::Input( const InputEventPlus &input )
 		input.type == IET_FIRST_PRESS  &&
 		!m_In.IsTransitioning()  &&
 		input.MenuI.IsValid()  &&
-		input.MenuI.button == MENU_BUTTON_START )
+		input.MenuI == MENU_BUTTON_START )
 	{
 		if( m_bAcceptedChoices  &&  !m_bGoToOptions )
 		{
@@ -119,7 +119,7 @@ void ScreenPlayerOptions::Input( const InputEventPlus &input )
 	ScreenOptionsMaster::Input( input );
 
 	// UGLY: Update m_Disqualified whenever Start is pressed
-	if( GAMESTATE->IsHumanPlayer(pn) && input.MenuI.IsValid() && input.MenuI.button == MENU_BUTTON_START )
+	if( GAMESTATE->IsHumanPlayer(pn) && input.MenuI.IsValid() && input.MenuI == MENU_BUTTON_START )
 	{
 		int row = m_iCurrentRow[pn];
 		UpdateDisqualified( row, pn );

stepmania/src/ScreenSelect.cpp

@@ -149,7 +149,7 @@ void ScreenSelect::Input( const InputEventPlus &input )
 	// user will still be on the title menu.
 	bool bAllowJoinInput = !ALLOW_DISABLED_PLAYER_INPUT;
 
-	if( input.MenuI.button == MENU_BUTTON_COIN ||
+	if( input.MenuI == MENU_BUTTON_COIN ||
 		(bAllowJoinInput && Screen::JoinInput(input)) )
 	{
 		if( input.type == IET_FIRST_PRESS )

stepmania/src/ScreenSelectMaster.cpp

@@ -714,7 +714,7 @@ void ScreenSelectMaster::MenuStart( PlayerNumber pn )
 	// Allow a player to join even if input is locked or someone has already already chosen.
 	InputEventPlus input;
 	input.pn = pn;
-	input.MenuI.button = MENU_BUTTON_START;
+	input.MenuI = MENU_BUTTON_START;
 	Screen::JoinInput( input );
 
 	if( m_fLockInputSecs > 0 )