Reduce dependencies, const fix.

stepmania/src/Sprite.cpp

@@ -20,6 +20,7 @@
 #include "RageException.h"
 #include "PrefsManager.h"
 #include "RageDisplay.h"
+#include "RageTexture.h"
 #include "GameConstantsAndTypes.h"
 #include "SDL_utils.h"
 #include "ActorUtil.h"
@@ -412,6 +413,14 @@ void Sprite::SetState( int iNewState )
 	m_fSecsIntoState = 0.0; 
 }
 
+CString	Sprite::GetTexturePath() const
+{
+	if( m_pTexture==NULL )
+		return "";
+
+	return m_pTexture->GetID().filename;
+}
+
 void Sprite::SetCustomTextureRect( const RectF &new_texcoord_frect ) 
 { 
 	m_bUsingCustomTexCoords = true;

stepmania/src/Sprite.h

@@ -14,8 +14,9 @@
 
 #include "Actor.h"
 #include "RageUtil.h"
-#include "RageTexture.h"
+#include "RageTextureID.h"
 
+class RageTexture;
 
 class Sprite: public Actor
 {
@@ -38,7 +39,7 @@ public:
 	virtual void SetState( int iNewState );
 	
 	virtual int GetNumStates()		{ return m_States.size(); };
-	CString	GetTexturePath()	{ return m_pTexture==NULL ? "" : m_pTexture->GetID().filename; };
+	CString	GetTexturePath() const;
 
 	void SetCustomTextureRect( const RectF &new_texcoord_frect );
 	void SetCustomTextureCoords( float fTexCoords[8] );