enumnick: command added to 'zone' plugin and other QoL improvements

zone: enumnick command create nick for creature from given prefix and number
      uinfo displays "Matched creatures" i.e number of creatures matched by filter
      maxage, and minage filters accept float now
      slaughter flag displayed on uinfo cretures list

plugins/zone.cpp

@@ -133,6 +133,7 @@ const string zone_help =
     "                 with filters named units are ignored unless specified.\n"
     "  unassign     - unassign selected creature(s) from zone or cage\n"
     "  nick         - give unit(s) nicknames (e.g. all units in a cage)\n"
+    "  enumnick     - give unit(s) enumerated nicknames (e.g Hen 1, Hen 2)\n"
     "  remnick      - remove nicknames\n"
     "  tocages      - assign to (multiple) built cages inside a pen/pasture\n"
     "                 spreads creatures evenly among cages for faster hauling.\n"
@@ -427,6 +428,7 @@ void unitInfo(color_ostream & out, df::unit* unit, bool verbose = false)
     out << ")";
     out << ", age: " << getAge(unit, true);
 
+
     if(isTame(unit))
         out << ", tame";
     if(isOwnCiv(unit))
@@ -445,6 +447,8 @@ void unitInfo(color_ostream & out, df::unit* unit, bool verbose = false)
         out << ", grazer";
     if(isMilkable(unit))
         out << ", milkable";
+    if(unit->flags2.bits.slaughter)
+        out << ", slaughter";
     
     if(verbose)
     {
@@ -1398,7 +1402,7 @@ pair<string, function<bool(df::unit*)>> createAgeFilter(vector<string> &filter_a
 
 pair<string, function<bool(df::unit*)>> createMinAgeFilter(vector<string> &filter_args)
 {
-    int min_age;
+    double min_age;
     stringstream ss(filter_args[0]);
 
     ss >> min_age;
@@ -1424,7 +1428,7 @@ pair<string, function<bool(df::unit*)>> createMinAgeFilter(vector<string> &filte
 
 pair<string, function<bool(df::unit*)>> createMaxAgeFilter(vector<string> &filter_args)
 {
-    int max_age;
+    double max_age;
     stringstream ss(filter_args[0]);
 
     ss >> max_age;
@@ -1489,6 +1493,8 @@ command_result df_zone (color_ostream &out, vector <string> & parameters)
     bool cagezone_assign = false;
     bool nick_set = false;
     string target_nick;
+    bool enum_nick = true;
+    string enum_prefix;
 
     bool verbose = false;
 
@@ -1694,6 +1700,18 @@ command_result df_zone (color_ostream &out, vector <string> & parameters)
             start_index = 2;
             out << "Set nickname to: " << target_nick << endl;
         }
+        else if(p0 == "enumnick")
+        {
+            if(parameters.size() <= 2)
+            {
+                out.printerr("No prefix specified! Use 'remnick' to remove nicknames!\n");
+                return CR_WRONG_USAGE;
+            }
+            enum_nick = true;
+            enum_prefix = parameters[1];
+            start_index = 2;
+            out << "Set nickname to: " << enum_prefix <<" <N>" << endl;
+        }
         else if(p0 == "remnick")
         {
             nick_set = true;
@@ -2070,6 +2088,7 @@ command_result df_zone (color_ostream &out, vector <string> & parameters)
     {
         vector <df::unit*> units_for_cagezone;
         int count = 0;
+        int matchedCount = 0;
         for(auto unit_it = world->units.all.begin(); unit_it != world->units.all.end(); ++unit_it)
         {
             df::unit *unit = *unit_it;
@@ -2109,6 +2128,8 @@ command_result df_zone (color_ostream &out, vector <string> & parameters)
                 continue;
             }
             
+            matchedCount++;
+
             if(unit_info)
             {
                 unitInfo(out, unit, verbose);
@@ -2118,6 +2139,12 @@ command_result df_zone (color_ostream &out, vector <string> & parameters)
             {
                 Units::setNickname(unit, target_nick);
             }
+            else if(enum_nick)
+            {
+                std::stringstream ss;
+                ss << enum_prefix << " " << matchedCount;
+                Units::setNickname(unit, ss.str());
+            }
             else if(cagezone_assign)
             {
                 units_for_cagezone.push_back(unit);
@@ -2181,6 +2208,7 @@ command_result df_zone (color_ostream &out, vector <string> & parameters)
         }
 
         out.color(COLOR_BLUE);
+        out << "Matched creatures: " << matchedCount << endl;
         out << "Processed creatures: " << count << endl;
         out.reset_color();
     }