maintain a local list of groups and remove groups upon leaving a room. Error checking for receiving messages for people that aren't in our room

Runtime/VelNetManager.cs

@@ -70,7 +70,17 @@ namespace VelNet
 		public List<NetworkObject> prefabs = new List<NetworkObject>();
 		public NetworkObject[] sceneObjects;
 		public List<string> deletedSceneObjects = new List<string>();
-		public readonly Dictionary<string, NetworkObject> objects = new Dictionary<string, NetworkObject>(); //maintains a list of all known objects on the server (ones that have ids)
+
+		/// <summary>
+		/// Maintains a list of all known objects on the server (ones that have ids)
+		/// </summary>
+		public readonly Dictionary<string, NetworkObject> objects = new Dictionary<string, NetworkObject>();
+
+		/// <summary>
+		/// Maintains a list of all known groups on the server
+		/// </summary>
+		public readonly Dictionary<string, List<int>> groups = new Dictionary<string, List<int>>();
+
 		private VelNetPlayer masterPlayer;
 		public static VelNetPlayer LocalPlayer => instance.players.Where(p => p.Value.isLocal).Select(p => p.Value).FirstOrDefault();
 		public static bool InRoom => LocalPlayer != null && LocalPlayer.room != "-1" && LocalPlayer.room != "";
@@ -192,6 +202,14 @@ namespace VelNet
 									.Select(o => o.Key)
 									.ToList().ForEach(DeleteNetworkObject);
 
+								// empty all the groups
+								foreach (string group in instance.groups.Keys)
+								{
+									SetupMessageGroup(group, new List<int>());
+								}
+
+								instance.groups.Clear();
+
 								Debug.Log("Left VelNet Room: " + oldRoom);
 								try
 								{
@@ -268,7 +286,15 @@ namespace VelNet
 						}
 						// generic message
 						case 3:
+							if (players.ContainsKey(m.sender))
+							{
 								players[m.sender]?.HandleMessage(m);
+							}
+							else
+							{
+								Debug.LogError("Received message from player that doesn't exist: " + m.text);
+							}
+
 							break;
 						// change master player (this should only happen when the first player joins or if the master player leaves)
 						case 4:
@@ -615,8 +641,13 @@ namespace VelNet
 		/// <summary>
 		/// changes the designated group that sendto(4) will go to
 		/// </summary>
-		public static void SetupMessageGroup(string groupName, IEnumerable<int> userIds)
+		public static void SetupMessageGroup(string groupName, List<int> userIds)
 		{
+			if (userIds.Count > 0)
+			{
+				instance.groups[groupName] = userIds.ToList();
+			}
+
 			SendNetworkMessage($"5:{groupName}:{string.Join(":", userIds)}");
 		}
 

Samples~/Example/NetworkGUI.cs

@@ -46,7 +46,7 @@ namespace VelNet
 		{
 			comms = FindObjectOfType<DissonanceComms>();
 			microphones.AddOptions(new List<string>(Microphone.devices));
-			velNetManager.MessageReceived += (m) =>
+			VelNetManager.MessageReceived += (m) =>
 			{
 				string s = m.type + ":" + m.sender + ":" + m.text;
 				messageBuffer.Add(s);

Samples~/Example/PlayerPrefab.prefab

@@ -143,7 +143,7 @@ MonoBehaviour:
   m_GameObject: {fileID: 6139051692386484099}
   m_Enabled: 1
   m_EditorHideFlags: 0
-  m_Script: {fileID: 11500000, guid: c773e094326d413bb1bca7f91cbf7f8c, type: 3}
+  m_Script: {fileID: 11500000, guid: 068080cf74f24b74caef652efb5bcfdc, type: 3}
   m_Name: 
   m_EditorClassIdentifier: 
   networkObject: {fileID: 9102273340480352682}

Samples~/Example/VelNetMan.cs

@@ -10,7 +10,7 @@ public class VelNetMan : MonoBehaviour
 	// Start is called before the first frame update
 	private void Start()
 	{
-		VelNetManager.instance.OnJoinedRoom += player =>
+		VelNetManager.OnJoinedRoom += player =>
 		{
 			VelNetManager.InstantiateNetworkObject(playerPrefab.name);
 		};

Samples~/Example/test.unity

@@ -301,7 +301,7 @@ RectTransform:
   - {fileID: 1557879931}
   - {fileID: 927188573}
   m_Father: {fileID: 244561620}
-  m_RootOrder: 7
+  m_RootOrder: 1
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 0}
@@ -596,14 +596,14 @@ RectTransform:
   m_LocalPosition: {x: 0, y: 0, z: 0}
   m_LocalScale: {x: 0, y: 0, z: 0}
   m_Children:
-  - {fileID: 1278634767}
-  - {fileID: 711524767}
   - {fileID: 1894247853}
-  - {fileID: 626742070}
+  - {fileID: 117638565}
   - {fileID: 1760805525}
+  - {fileID: 1278634767}
+  - {fileID: 626742070}
+  - {fileID: 711524767}
   - {fileID: 945446556}
   - {fileID: 1843597586}
-  - {fileID: 117638565}
   m_Father: {fileID: 0}
   m_RootOrder: 4
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
@@ -870,7 +870,7 @@ RectTransform:
   - {fileID: 2034439}
   - {fileID: 1560686264}
   m_Father: {fileID: 244561620}
-  m_RootOrder: 3
+  m_RootOrder: 4
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 0}
@@ -1041,7 +1041,7 @@ RectTransform:
   - {fileID: 162005664}
   - {fileID: 1484033256}
   m_Father: {fileID: 244561620}
-  m_RootOrder: 1
+  m_RootOrder: 5
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 0}
@@ -1609,7 +1609,7 @@ RectTransform:
   - {fileID: 1954037272}
   - {fileID: 1235343401}
   m_Father: {fileID: 244561620}
-  m_RootOrder: 5
+  m_RootOrder: 6
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 0}
@@ -1839,12 +1839,12 @@ MonoBehaviour:
   udpConnected: 0
   userid: -1
   room: 
+  connected: 0
   prefabs:
   - {fileID: 3951900052977689805, guid: 6e4a023f70e01405e8b249a4488fe319, type: 3}
   - {fileID: 9102273340480352682, guid: d4158ab9c4a204cdbba28d3273fc1fb3, type: 3}
   sceneObjects: []
   deletedSceneObjects: []
-  connected: 0
 --- !u!1 &1154194181
 GameObject:
   m_ObjectHideFlags: 0
@@ -2082,7 +2082,7 @@ RectTransform:
   m_Children:
   - {fileID: 1295274441}
   m_Father: {fileID: 244561620}
-  m_RootOrder: 0
+  m_RootOrder: 3
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 0}
@@ -2291,7 +2291,7 @@ MonoBehaviour:
   m_GameObject: {fileID: 1434745018}
   m_Enabled: 1
   m_EditorHideFlags: 0
-  m_Script: {fileID: 11500000, guid: 5d2009d8e264649749c0315d48765749, type: 3}
+  m_Script: {fileID: 11500000, guid: 0b249e3fdf4af5d4d9d36b9222998afa, type: 3}
   m_Name: 
   m_EditorClassIdentifier: 
   dissonanceId: 
@@ -2350,7 +2350,7 @@ MonoBehaviour:
   _metadataExpanded: 1
   _activationModeExpanded: 1
   _tokensExpanded: 1
-  _ampExpanded: 0
+  _ampExpanded: 1
   _activationFaderSettings:
     _volume: 1
     _fadeInTicks: 0
@@ -2685,7 +2685,7 @@ RectTransform:
   m_Children:
   - {fileID: 2118429759}
   m_Father: {fileID: 244561620}
-  m_RootOrder: 4
+  m_RootOrder: 2
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 0}
@@ -2818,7 +2818,7 @@ RectTransform:
   m_Children:
   - {fileID: 1852007163}
   m_Father: {fileID: 244561620}
-  m_RootOrder: 6
+  m_RootOrder: 7
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 0}
@@ -3028,7 +3028,7 @@ RectTransform:
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
   m_Father: {fileID: 244561620}
-  m_RootOrder: 2
+  m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 1}

package.json

@@ -1,7 +1,7 @@
 {
     "name": "edu.uga.engr.vel.velnet",
     "displayName": "VelNet",
-    "version": "1.0.4",
+    "version": "1.0.5",
     "unity": "2019.1",
     "description": "A custom networking library for Unity.",
     "keywords": [