We have more music

OpenRA.Game/GameRules/MusicInfo.cs

@@ -8,43 +8,33 @@ namespace OpenRA.GameRules
 {
 	public class MusicInfo
 	{
-		public readonly Lazy<Dictionary<string, MusicPool>> Pools;
+		public readonly MusicPool Pool;
 		public readonly string[] Music = { };
 
 		public MusicInfo( MiniYaml y )
 		{
 			FieldLoader.Load(this, y);
-
-			Pools = Lazy.New(() =>
-				new Dictionary<string, MusicPool>
-				{
-					{ "Music", new MusicPool(Music) },
-				});
+			Pool = new MusicPool(Music);
 		}
 	}
 	
 	public class MusicPool
 	{
 		readonly string[] clips;
-		readonly List<string> liveclips = new List<string>();
+		int playing = 0;
 
 		public MusicPool(params string[] clips)
 		{
 			this.clips = clips;
 		}
 
-		public string GetNext()
-		{
-			if (liveclips.Count == 0)
-				liveclips.AddRange(clips);
-
-			if (liveclips.Count == 0)
-				return null;		/* avoid crashing if there's no clips at all */
-
-			var i = Game.CosmeticRandom.Next(liveclips.Count);
-			var s = liveclips[i];
-			liveclips.RemoveAt(i);
-			return s;
+		public string GetNext() { 
+			playing = (playing + 1) % clips.Length;
+			return clips[playing]; 
+		}
+		public string GetPrev() { 
+			playing = (playing + clips.Length - 1) % clips.Length;
+			return clips[playing]; 
 		}
 	}
 }