when there is max 1 mother zombie to be infected we sometimes have rounds with no mother zombies, this instead just picks one client randomly

src/zr/infect.inc

@@ -750,6 +750,20 @@ public Action:InfectMotherZombie(Handle:timer)
             }
             else // We have no candidates at all, abort!
             {
+                /*
+                    ghostie complained about how we often dont have a mother zombie when its a low playercount. we just need to infect one guy on
+                    these rounds, stuff like ZombieManager and PlayerRanking (topdefender) interfere with people who can be infected.
+                    Sometimes when only one mother zombie should spawn we end up with rounds that dont have any mother zombie at all
+                    despite having human clients who play. 2023 11th september.
+                */
+                for (new n = 0; n < eligibleclients; n++)
+                {
+                    //we just pick a random client here inside of the loop because it ensures that at least one client exists.
+                    new randindex = Math_GetRandomInt(0, eligibleclients - 1);
+                    new client = GetArrayCell(arrayEligibleClients, randindex);
+                    InfectHumanToZombie(client, _, true);
+                    break;
+                }
                 break;
             }
         }