don't let tab affect mod approach speed

stepmania/src/PlayerState.cpp

@@ -41,7 +41,10 @@ void PlayerState::Reset()
 
 void PlayerState::Update( float fDelta )
 {
-	m_CurrentPlayerOptions.Approach( m_PlayerOptions, fDelta );
+	// Don't let the mod approach speed be affected by Tab.
+	// TODO: Find a more elegant way of handling this.
+	float fRealDelta = m_timerPlayerOptions.GetDeltaTime();
+	m_CurrentPlayerOptions.Approach( m_PlayerOptions, fRealDelta );
 
 	// TRICKY: GAMESTATE->Update is run before any of the Screen update's,
 	// so we'll clear these flags here and let them get turned on later

stepmania/src/PlayerState.h

@@ -6,6 +6,7 @@
 #include "PlayerNumber.h"
 #include "PlayerOptions.h"
 #include "Attack.h"
+#include "RageTimer.h"
 struct lua_State;
 
 class PlayerState
@@ -22,6 +23,7 @@ public:
 	MultiPlayer m_mp;
 	
 
+	RageTimer m_timerPlayerOptions;
 	PlayerOptions	m_CurrentPlayerOptions;    // current approaches destination
 	PlayerOptions	m_PlayerOptions;			// change this, and current will move gradually toward it
 	PlayerOptions	m_StagePlayerOptions;	// options that are in effect for this stage.  May be different from m_StoredPlayerOptions if using forced beginner or forced Survial mods