implement coin settling

stepmania/src/StepMania.cpp

@@ -1248,8 +1248,28 @@ CString SaveScreenshot( CString sDir, bool bSaveCompressed, bool bMakeSignature,
 	return sFileName;
 }
 
-void InsertCoin( int iNum )
+static Preference<float> g_iCoinSettleTime( "CoinSettleTime", 0.03f );
+
+void InsertCoin( int iNum, const RageTimer *pTime )
 {
+	if( pTime != NULL )
+	{
+		/* If a time is supplied for the button press, don't allow coin inserts
+		 * in very rapid succession, to be sure one insert signal isn't counted
+		 * as two coins.  Use pTime, and never the current time, or we'll drop
+		 * coins if multiple coins are inserted during a screen load. */
+		static RageTimer LastCoin( RageZeroTimer );
+
+		float fAgo = *pTime - LastCoin;
+		if( !LastCoin.IsZero() && fAgo < g_iCoinSettleTime.Get() )
+		{
+			LOG->Trace("Ignored coin input (%f since last accepted)", fAgo );
+			return;
+		}
+
+		LastCoin = *pTime;
+	}
+
 	GAMESTATE->m_iCoins += iNum;
 	LOG->Trace("%i coins inserted, %i needed to play", GAMESTATE->m_iCoins, PREFSMAN->m_iCoinsPerCredit.Get() );
 	BOOKKEEPER->CoinInserted();
@@ -1294,7 +1314,7 @@ bool HandleGlobalInputs( DeviceInput DeviceI, InputEventType type, GameInput Gam
 			LOG->Trace( "Ignored coin insertion (editing)" );
 			break;
 		}
-		InsertCoin();
+		InsertCoin( 1, &DeviceI.ts );
 		return false;	// Attract need to know because they go to TitleMenu on > 1 credit
 	}
 

stepmania/src/StepMania.h

@@ -2,6 +2,7 @@
 #define STEPMANIA_H
 
 class Game;
+class RageTimer;
 
 #ifdef _XBOX
 void __cdecl main();
@@ -19,7 +20,7 @@ void FocusChanged( bool bHasFocus );
 // If successful, return filename of screenshot in sDir, else return ""
 CString SaveScreenshot( CString sDir, bool bSaveCompressed, bool bMakeSignature, int iIndex = -1 );
 
-void InsertCoin( int iNum = 1 );
+void InsertCoin( int iNum = 1, const RageTimer *pTime = NULL );
 void InsertCredit();
 
 extern int g_argc;