fix: factions have at least one city

RTWLibPlus/map/voronoi.cs

@@ -1,6 +1,7 @@
 namespace RTWLibPlus.map;
 using RTWLibPlus.helpers;
 using RTWLibPlus.randomiser;
+using System;
 using System.Collections.Generic;
 using System.Numerics;
 
@@ -30,8 +31,37 @@ public static List<string[]> GetVoronoiGroups(Dictionary<string, Vector2> coords
             groups[closest] = groups[closest].Add(c.Key);
         }
 
+        CheckGroupsNotEmpty(groups);
+
         return groups;
+    }
+
+    private static void CheckGroupsNotEmpty(List<string[]> groups)
+    {
+        for (int i = 0; i < groups.Count; i++)
+        {
+            string[] arr = groups[i];
+            if (groups[i].Length == 0)
+            {
+                StealSettlement(groups, i);
+            }
+        }
+    }
 
+    private static void StealSettlement(List<string[]> groups, int emptyGroupInd)
+    {
+        for (int i = 0; i < groups.Count; i++)
+        {
+            if (groups[i].Length > 2)
+            {
+                string temp = groups[i][^1];
+                Console.WriteLine("city to add " + temp);
+                groups[emptyGroupInd] = groups[emptyGroupInd].Add(temp);
+                Console.WriteLine(groups[emptyGroupInd][0]);
+                groups[i] = groups[i].Remove(groups[i].Length - 1);
+                break;
+            }
+        }
     }
 
     public static int GetClosestPoint(Vector2[] points, Vector2 coord)

RTWLibPlus/randomiser/randDS.cs

@@ -54,11 +54,13 @@ public static string RandCitiesVoronoi(SMF smf, RandWrap rnd, DS ds = null, DR d
         Vector2[] vp = Voronoi.GetVoronoiPoints(factions.Count, cm.Width, cm.Height, rnd);
         List<string[]> gh = Voronoi.GetVoronoiGroups(cm.CityCoordinates, vp);
 
-        // gh.Shuffle(TWRand.rnd);
-        // factions.Shuffle(TWRand.rnd);
-        // function to get missing settlements and add them to the pool
         for (int i = 0; i < factions.Count; i++)
         {
+            if (gh[i].Length == 0)
+            {
+                Console.WriteLine("no settlements in group");
+            }
+
             foreach (string region in gh[i])
             {
                 IBaseObj city = ds.GetItemByValue(settlements, region);