Function currentFrame

include/Song.h:342–346

	}
	
	inline f_cnt_t currentFrame() const
	{
		return m_playPos[m_playMode].getTicks() * Engine::framesPerTick() + 
			m_playPos[m_playMode].currentFrame();
	}
	
	void setPlayPos( tick_t ticks, PlayModes playMode );