cleanup: Remove Style and use StyleDef everywhere. This gets rid of a lot of Style->StyleDef lookups and discourages code that's specific to a Style. All game logic should be data-driven.

stepmania/src/ArrowEffects.cpp

@@ -419,11 +419,9 @@ bool ArrowsNeedZBuffer( PlayerNumber pn )
 
 float ArrowGetZoom( PlayerNumber pn )
 {
-	/* Hack: make STYLE_TECHNO_VERSUS8 fit. */
-	if( GAMESTATE->m_CurGame == GAME_TECHNO &&
-		( GAMESTATE->m_CurStyle == STYLE_TECHNO_VERSUS8 
-		|| GAMESTATE->m_PlayMode == PLAY_MODE_BATTLE 
-		|| GAMESTATE->m_PlayMode == PLAY_MODE_RAVE ) )
+	// FIXME: Move the zoom values into StyleDef
+	if( GAMESTATE->m_pCurStyleDef->m_bNeedsZoomOutWith2Players &&
+		(GAMESTATE->GetNumSidesJoined()==2 || GAMESTATE->AnyPlayersAreCpu()) )
 		return 0.6f;
 	return 1.0f;
 }