Add metric for changing blink mod frequency.

Done as a partial request for WinDEU...
whether he realizes it or not. ;)

Docs/Changelog_sm-ssc.txt

@@ -13,6 +13,11 @@ _____________________________________________________________________________
 sm-ssc v1.2.1 | 2011011?
 --------------------------------------------------------------------------------
 
+20110115
+--------
+* [ArrowEffects] Allow modifying the blink mod frequency in the metrics.
+  [Wolfman2000]
+
 20110112
 --------
 * [PlayerStageStats] Change score to an unsigned long from a signed int. [FSX]

Themes/_fallback/metrics.ini

@@ -128,6 +128,7 @@ FrameWidthLockEffectsToOverlapping=false
 FrameWidthLockEffectsTweenPixels=25
 ArrowSpacing=128
 DrawHiddenNotesAfterReceptor=true
+BlinkModFrequency=0.3333
 
 [Background]
 # Background stuff. again, its usually a better idea to leave this alone

src/ArrowEffects.cpp

@@ -16,6 +16,7 @@
 
 static ThemeMetric<float>	ARROW_SPACING( "ArrowEffects", "ArrowSpacing" );
 static ThemeMetric<bool>	HIDDEN_SUDDEN_PAST_RECEPTOR( "ArrowEffects", "DrawHiddenNotesAfterReceptor");
+static ThemeMetric<float>	BLINK_MOD_FREQUENCY( "ArrowEffects", "BlinkModFrequency" );
 
 static float GetNoteFieldHeight( const PlayerState* pPlayerState )
 {
@@ -572,7 +573,7 @@ float ArrowGetPercentVisible( const PlayerState* pPlayerState, float fYPosWithou
 	if( fAppearances[PlayerOptions::APPEARANCE_BLINK] != 0 )
 	{
 		float f = RageFastSin(RageTimer::GetTimeSinceStartFast()*10);
-		f = Quantize( f, 0.3333f );
+		f = Quantize( f, BLINK_MOD_FREQUENCY );
 		fVisibleAdjust += SCALE( f, 0, 1, -1, 0 );
 	}
 	if( fAppearances[PlayerOptions::APPEARANCE_RANDOMVANISH] != 0 )