public string GetRandomBackgroundTrack()
{
if (backgroundTracks.Count == 0)
{
return(null);
}
if (lastTracks == null)
{
lastTracks = new string[musicNotReplyCount];
for (int i = 0; i < lastTracks.Length; i++)
{
lastTracks [i] = "";
}
}
int index = Random.Range(0, backgroundTracks.Count);
if (ContainsInLastTracks(backgroundTracks[index]))
{
if (ChanceSystem <bool> .IsChanceByPercent(50))
{
for (int i = 0; i < backgroundTracks.Count; i++)
{
if (!ContainsInLastTracks(backgroundTracks[i]))
{
return(backgroundTracks[i]);
}
}
}
else
{
for (int i = backgroundTracks.Count - 1; i >= 0; i--)
{
if (!ContainsInLastTracks(backgroundTracks[i]))
{
return(backgroundTracks [i]);
}
}
}
index = 0;
}
return(backgroundTracks [index]);
}
public AbstractFactory()
{
factoryGroup = new Dictionary <string, CurrentFactory <T> > ();
chanceSystem = new ChanceSystem <string> ();
}