Fix creating portals without a name creating portals with duplicate names

Author: UnknownShadow200

fCraft/Commands/WorldCommands.cs

@@ -3712,12 +3712,13 @@ static void PortalCreate(Player player, CommandReader cmd) {
                 return;
             }
 
-            string portalName = cmd.Next();
-            if (string.IsNullOrEmpty(portalName)) {
-            } else if (!Portal.Exists(player.World, portalName)) {
-                player.PortalName = portalName;
+            player.PortalName = null;
+            string name = cmd.Next();
+            if (string.IsNullOrEmpty(name)) {
+            } else if (!Portal.Exists(player.World, name)) {
+                player.PortalName = name;
             } else {
-                player.Message("A portal with name {0} already exists in this world.", portalName);
+                player.Message("A portal named {0} already exists in this world.", name);
                 return;
             }
 
@@ -3904,12 +3905,11 @@ static void PortalCreateCallback(Player player, Vector3I[] marks, object tag) {
                         }
                     }
 
-                    if (player.PortalName == null) {
-                        player.PortalName = Portal.GenerateName(player.World);
-                    }
+                    string name = player.PortalName;
+                    if (name == null) name = Portal.GenerateName(player.World);
 
                     Portal portal = new Portal(player.PortalWorld, new PortalRange(Xmin, Xmax, Ymin, Ymax, Zmin, Zmax),
-                                               player.PortalName, player.Name, player.World.Name, player.PortalTPPos);
+                                               name, player.Name, player.World.Name, player.PortalTPPos);
                     PortalHandler.CreatePortal(portal, player.World);
                     op.AnnounceCompletion = false;
                     op.Context = BlockChangeContext.Portal;

fCraft/Portals/Portal.cs

@@ -78,33 +78,9 @@ public bool IsInRange(Vector3I vector) {
         }
 
         public static string GenerateName(World world) {
-            if (world.Portals != null) {
-                if (world.Portals.Count > 0) {
-                    bool found = false;
-
-
-                    while (!found) {
-                        bool taken = false;
-
-                        foreach (Portal portal in world.Portals) {
-                            if (portal.Name.Equals("portal" + world.portalID)) {
-                                taken = true;
-                                break;
-                            }
-                        }
-
-                        if (!taken) {
-                            found = true;
-                        } else {
-                            world.portalID++;
-                        }
-                    }
-
-                    return "portal" + world.portalID;
-                }
-            }
-
-            return "portal1";
+            int id = 1;
+            while (Exists(world, "portal" + id)) id++;
+            return "portal" + id;
         }
 
         public static bool Exists(World world, string name) {

fCraft/World/World.cs

@@ -86,7 +86,6 @@ public string MapChangedByClassy {
         public Array Signs { get; set; }
 
         public ArrayList Portals;
-        public int portalID = 1;
 
         public BlockDefinition[] BlockDefs;