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[Freeciv-Dev] (PR#8877) RFC: design for generalized specialists
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[Freeciv-Dev] (PR#8877) RFC: design for generalized specialists

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Subject: [Freeciv-Dev] (PR#8877) RFC: design for generalized specialists
From: "Jason Short" <jdorje@xxxxxxxxxxxxxxxxxxxxx>
Date: Tue, 15 Jun 2004 20:27:51 -0700
Reply-to: rt@xxxxxxxxxxx

<URL: http://rt.freeciv.org/Ticket/Display.html?id=8877 >

> [jdorje - Sun May 30 23:35:53 2004]:

> The attached patch is a proof-of-concept for this.  All needed changes 
> are made so that all specialist info is loaded from the ruleset. 
> Autogames seem to be unchanged, and (surprisingly) the runtime is not 
> impacted either (I could be wrong on this though, it's easy to make a 
> mistake when running autogames).

And an updated patch.

jason

Index: ai/advdomestic.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/ai/advdomestic.c,v
retrieving revision 1.109
diff -u -r1.109 advdomestic.c
--- ai/advdomestic.c    27 May 2004 22:14:17 -0000      1.109
+++ ai/advdomestic.c    16 Jun 2004 03:26:16 -0000
@@ -190,6 +190,27 @@
   return best;
 }
 
+static int get_num_entertainers(struct city *pcity)
+{
+  int elvis = 0, i;
+
+  /* Count all luxury-producing specialists.  We "estimate" that for every
+   * extra citizen made content one of these can be put to work elsewhere.
+   * This calculation should be improved. */
+  for (i = 0; i < SP_COUNT; i++) {
+    if (game.rgame.specialists[i].bonus_lux >= 2) {
+      elvis += pcity->specialists[i];
+    }
+  }
+
+  return elvis;
+}
+
+static int get_num_nonentertainers(struct city *pcity)
+{
+  return city_specialists(pcity) - get_num_entertainers(pcity);
+}
+
 /**************************************************************************
 Returns the value (desire to build it) of the improvement for keeping
 of order in the city.
@@ -211,8 +232,7 @@
 {
   /* How much one rebeling citizen counts - 16 is debatable value */
 #define SADVAL 16
-  /* Number of elvises in the city */
-  int elvis = pcity->specialists[SP_ELVIS];
+  int elvis = get_num_entertainers(pcity);
   /* Raw number of unhappy people */
   int sad = pcity->ppl_unhappy[0];
   /* Final number of content people */
@@ -246,9 +266,11 @@
    * re: Chapel -- Syela */
   while (happy > 0) { happy--; value += SADVAL; }
   
+#if 0
   freelog(LOG_DEBUG, "%s: %d elvis %d sad %d content %d size %d val",
          pcity->name, pcity->specialists[SP_ELVIS], pcity->ppl_unhappy[4],
          pcity->ppl_content[4], pcity->size, value);
+#endif
 
   return value;
 #undef SADVAL
@@ -407,7 +429,7 @@
   struct player *pplayer = city_owner(pcity);
   int bar, est_food, food, grana, hunger, needpower;
   int tprod, prod, sci, tax, t, val, wwtv;
-  int j, k;
+  int j, k, sp;
   int values[B_LAST];
   int nplayers = game.nplayers 
                  - team_count_members_alive(pplayer->team);
@@ -426,9 +448,7 @@
     sci = 0;
   }
 
-  est_food = (2 * pcity->specialists[SP_SCIENTIST]
-             + 2 * pcity->specialists[SP_TAXMAN]
-             + pcity->food_surplus);
+  est_food = (2 * get_num_nonentertainers(pcity) + pcity->food_surplus);
   prod = 
     (pcity->shield_prod * SHIELD_WEIGHTING * 100) / city_shield_bonus(pcity);
   needpower = (city_got_building(pcity, B_MFG) ? 2 :
@@ -445,9 +465,7 @@
   grana = food_weighting(grana + 1);
   hunger = 1;
   j = (pcity->size * 2) + settler_eats(pcity) - pcity->food_prod;
-  if (j >= 0
-      && pcity->specialists[SP_SCIENTIST] <= 0
-      && pcity->specialists[SP_TAXMAN] <= 0) {
+  if (j >= 0 && get_num_nonentertainers(pcity) == 0) {
     hunger += j + 1;
   }
 
@@ -533,8 +551,22 @@
     case B_MARKETPLACE:
     case B_BANK:
     case B_STOCK:
-      values[id] = (tax + 3 * pcity->specialists[SP_TAXMAN]
-                   + pcity->specialists[SP_ELVIS] * wwtv) / 2;
+      values[id] = tax; /* +50% to taxes */
+
+      for (sp = 0; sp < SP_COUNT; sp++) {
+       /* +50% to taxmen. */
+       values[id] += (pcity->specialists[sp]
+                      * game.rgame.specialists[sp].bonus_tax);
+
+       /* +50% to luxuries => converted to workers.  That's 1 more
+        * worker per 4 luxuries. */
+       values[id] += (pcity->specialists[sp]
+                      * game.rgame.specialists[sp].bonus_lux
+                      * wwtv) / 2;
+      }
+
+      /* Bonus is 50% */
+      values[id] /= 2;
       break;
     case B_SUPERHIGHWAYS:
       values[id] = road_trade(pcity) * t;
@@ -956,9 +988,7 @@
   Unit_Type_id unit_type;
   /* Food surplus assuming that workers and elvii are already accounted for
    * and properly balanced. */
-  int est_food = pcity->food_surplus
-                 + 2 * pcity->specialists[SP_SCIENTIST]
-                 + 2 * pcity->specialists[SP_TAXMAN];
+  int est_food = pcity->food_surplus + 2 * get_num_nonentertainers(pcity);
 
   init_choice(choice);
 
Index: ai/aicity.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/ai/aicity.c,v
retrieving revision 1.155
diff -u -r1.155 aicity.c
--- ai/aicity.c 27 May 2004 22:14:17 -0000      1.155
+++ ai/aicity.c 16 Jun 2004 03:26:16 -0000
@@ -700,7 +700,7 @@
       is_valid = map_to_city_map(&city_map_x, &city_map_y, acity, x, y);
       assert(is_valid);
       server_remove_worker_city(acity, city_map_x, city_map_y);
-      acity->specialists[SP_ELVIS]++;
+      acity->specialists[DEFAULT_SPECIALIST]++;
       if (!city_list_find_id(&minilist, acity->id)) {
        city_list_insert(&minilist, acity);
       }
Index: client/citydlg_common.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/client/citydlg_common.c,v
retrieving revision 1.36
diff -u -r1.36 citydlg_common.c
--- client/citydlg_common.c     13 Jun 2004 16:53:34 -0000      1.36
+++ client/citydlg_common.c     16 Jun 2004 03:26:16 -0000
@@ -363,32 +363,29 @@
   citizens (use MAX_CITY_SIZE to be on the safe side).
 **************************************************************************/
 void get_city_citizen_types(struct city *pcity, int index,
-                           enum citizen_type *citizens)
+                           struct citizen_type *citizens)
 {
-  int i = 0, n;
+  int i = 0, n, sp;
   assert(index >= 0 && index < 5);
 
   for (n = 0; n < pcity->ppl_happy[index]; n++, i++) {
-    citizens[i] = CITIZEN_HAPPY;
+    citizens[i].type = CITIZEN_HAPPY;
   }
   for (n = 0; n < pcity->ppl_content[index]; n++, i++) {
-    citizens[i] = CITIZEN_CONTENT;
+    citizens[i].type = CITIZEN_CONTENT;
   }
   for (n = 0; n < pcity->ppl_unhappy[index]; n++, i++) {
-    citizens[i] = CITIZEN_UNHAPPY;
+    citizens[i].type = CITIZEN_UNHAPPY;
   }
   for (n = 0; n < pcity->ppl_angry[index]; n++, i++) {
-    citizens[i] = CITIZEN_ANGRY;
+    citizens[i].type = CITIZEN_ANGRY;
   }
 
-  for (n = 0; n < pcity->specialists[SP_ELVIS]; n++, i++) {
-    citizens[i] = CITIZEN_ELVIS;
-  }
-  for (n = 0; n < pcity->specialists[SP_SCIENTIST]; n++, i++) {
-    citizens[i] = CITIZEN_SCIENTIST;
-  }
-  for (n = 0; n < pcity->specialists[SP_TAXMAN]; n++, i++) {
-    citizens[i] = CITIZEN_TAXMAN;
+  for (sp = 0; sp < SP_COUNT; sp++) {
+    for (n = 0; n < pcity->specialists[sp]; n++, i++) {
+      citizens[i].type = CITIZEN_SPECIALIST;
+      citizens[i].spec_type = sp;
+    }
   }
 
   assert(i == pcity->size);
@@ -399,8 +396,8 @@
 **************************************************************************/
 void city_rotate_specialist(struct city *pcity, int citizen_index)
 {
-  enum citizen_type citizens[MAX_CITY_SIZE];
-  enum specialist_type from, to;
+  struct citizen_type citizens[MAX_CITY_SIZE];
+  int from, to;
 
   if (citizen_index < 0 || citizen_index >= pcity->size) {
     return;
@@ -408,19 +405,10 @@
 
   get_city_citizen_types(pcity, 4, citizens);
 
-  switch (citizens[citizen_index]) {
-  case CITIZEN_ELVIS:
-    from = SP_ELVIS;
-    break;
-  case CITIZEN_SCIENTIST:
-    from = SP_SCIENTIST;
-    break;
-  case CITIZEN_TAXMAN:
-    from = SP_TAXMAN;
-    break;
-  default:
+  if (citizens[citizen_index].type != CITIZEN_SPECIALIST) {
     return;
   }
+  from = citizens[citizen_index].spec_type;
 
   /* Loop through all specialists in order until we find a usable one
    * (or run out of choices). */
@@ -550,8 +538,7 @@
 /**************************************************************************
   Change a specialist in the given city.  Return the request ID.
 **************************************************************************/
-int city_change_specialist(struct city *pcity, enum specialist_type from,
-                          enum specialist_type to)
+int city_change_specialist(struct city *pcity, int from, int to)
 {
   return dsend_packet_city_change_specialist(&aconnection, pcity->id, from,
                                             to);
Index: client/citydlg_common.h
===================================================================
RCS file: /home/freeciv/CVS/freeciv/client/citydlg_common.h,v
retrieving revision 1.20
diff -u -r1.20 citydlg_common.h
--- client/citydlg_common.h     4 Apr 2004 14:49:10 -0000       1.20
+++ client/citydlg_common.h     16 Jun 2004 03:26:16 -0000
@@ -23,15 +23,16 @@
 struct city;
 struct canvas;
 
-enum citizen_type {
-  CITIZEN_ELVIS,
-  CITIZEN_SCIENTIST,
-  CITIZEN_TAXMAN,
-  CITIZEN_CONTENT,
-  CITIZEN_HAPPY,
-  CITIZEN_UNHAPPY,
-  CITIZEN_ANGRY,
-  CITIZEN_LAST
+struct citizen_type {
+  enum {
+    CITIZEN_SPECIALIST,
+    CITIZEN_CONTENT,
+    CITIZEN_HAPPY,
+    CITIZEN_UNHAPPY,
+    CITIZEN_ANGRY,
+    CITIZEN_LAST
+  } type;
+  int spec_type;
 };
 
 int get_citydlg_canvas_width(void);
@@ -53,7 +54,7 @@
                                    bool is_unit, struct city *pcity);
 
 void get_city_citizen_types(struct city *pcity, int index,
-                           enum citizen_type *citizens);
+                           struct citizen_type *citizens);
 void city_rotate_specialist(struct city *pcity, int citizen_index);
 
 void activate_all_units(int map_x, int map_y);
@@ -64,8 +65,7 @@
 void city_set_queue(struct city *pcity, struct worklist *pqueue);
 int city_sell_improvement(struct city *pcity, Impr_Type_id sell_id);
 int city_buy_production(struct city *pcity);
-int city_change_specialist(struct city *pcity, enum specialist_type from,
-                          enum specialist_type to);
+int city_change_specialist(struct city *pcity, int from, int to);
 int city_toggle_worker(struct city *pcity, int city_x, int city_y);
 int city_rename(struct city *pcity, const char *name);
 
Index: client/cityrepdata.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/client/cityrepdata.c,v
retrieving revision 1.33
diff -u -r1.33 cityrepdata.c
--- client/cityrepdata.c        27 May 2004 22:14:18 -0000      1.33
+++ client/cityrepdata.c        16 Jun 2004 03:26:16 -0000
@@ -115,13 +115,20 @@
 static char *cr_entry_specialists(struct city *pcity)
 {
   static char buf[32];
-  my_snprintf(buf, sizeof(buf), "%d/%d/%d",
-             pcity->specialists[SP_ELVIS],
-             pcity->specialists[SP_SCIENTIST],
-             pcity->specialists[SP_TAXMAN]);
+  int i;
+
+  buf[0] = '\0';
+  for (i = 0; i < SP_COUNT; i++) {
+    if (i != 0) {
+      sz_strlcat(buf, "/");
+    }
+    my_snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
+               "%d", pcity->specialists[i]);
+  }
   return buf;
 }
 
+#if 0
 static char *cr_entry_entertainers(struct city *pcity)
 {
   static char buf[8];
@@ -142,6 +149,7 @@
   my_snprintf(buf, sizeof(buf), "%2d", pcity->specialists[SP_TAXMAN]);
   return buf;
 }
+#endif
 
 static char *cr_entry_attack(struct city *pcity)
 {
@@ -442,12 +450,14 @@
     N_("?entertainers/scientists/taxmen:E/S/T"),
     N_("Entertainers, Scientists, Taxmen"),
     FUNC_TAG(specialists) },
+#if 0
   { FALSE, 2, 1, NULL, N_("?Entertainers:E"), N_("Entertainers"),
     FUNC_TAG(entertainers) },
   { FALSE, 2, 1, NULL, N_("?Scientists:S"), N_("Scientists"),
     FUNC_TAG(scientists) },
   { FALSE, 2, 1, NULL, N_("?Taxmen:T"), N_("Taxmen"),
     FUNC_TAG(taxmen) },
+#endif
   { FALSE, 8, 1, N_("Best"), N_("attack"),
     N_("Best attacking units"), FUNC_TAG(attack)},
   { FALSE, 8, 1, N_("Best"), N_("defense"),
Index: client/cityrepdata.h
===================================================================
RCS file: /home/freeciv/CVS/freeciv/client/cityrepdata.h,v
retrieving revision 1.9
diff -u -r1.9 cityrepdata.h
--- client/cityrepdata.h        4 Feb 2003 22:13:27 -0000       1.9
+++ client/cityrepdata.h        16 Jun 2004 03:26:16 -0000
@@ -21,7 +21,7 @@
 #define REPORT_CITYNAME_ABBREV 15
 
 /* Number of city report columns: have to set this manually now... */
-#define NUM_CREPORT_COLS 33
+#define NUM_CREPORT_COLS 30
 
 struct city_report_spec {
   bool show;                   /* modify this to customize */
Index: client/packhand.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/client/packhand.c,v
retrieving revision 1.380
diff -u -r1.380 packhand.c
--- client/packhand.c   12 Jun 2004 17:42:27 -0000      1.380
+++ client/packhand.c   16 Jun 2004 03:26:17 -0000
@@ -2701,11 +2701,17 @@
 {
   int i;
 
+  game.rgame.num_specialist_types = packet->num_specialist_types;
+  game.rgame.default_specialist = packet->default_specialist;
   for (i = 0; i < SP_COUNT; i++) {
     sz_strlcpy(game.rgame.specialists[i].name, packet->specialist_name[i]);
     game.rgame.specialists[i].min_size = packet->specialist_min_size[i];
-    game.rgame.specialists[i].bonus = packet->specialist_bonus[i];
+    game.rgame.specialists[i].bonus_sci = packet->specialist_bonus_sci[i];
+    game.rgame.specialists[i].bonus_tax = packet->specialist_bonus_tax[i];
+    game.rgame.specialists[i].bonus_lux = packet->specialist_bonus_lux[i];
   }
+  tilespec_setup_citizen_types();
+
   game.rgame.changable_tax = packet->changable_tax;
   game.rgame.forced_science = packet->forced_science;
   game.rgame.forced_luxury = packet->forced_luxury;
Index: client/tilespec.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/client/tilespec.c,v
retrieving revision 1.174
diff -u -r1.174 tilespec.c
--- client/tilespec.c   6 Jun 2004 06:09:46 -0000       1.174
+++ client/tilespec.c   16 Jun 2004 03:26:17 -0000
@@ -897,17 +897,13 @@
 /**********************************************************************
   Returns a text name for the citizen, as used in the tileset.
 ***********************************************************************/
-static const char *get_citizen_name(enum citizen_type citizen)
+static const char *get_citizen_name(struct citizen_type citizen)
 {
   /* These strings are used in reading the tileset.  Do not
    * translate. */
-  switch (citizen) {
-  case CITIZEN_ELVIS:
-    return "entertainer";
-  case CITIZEN_SCIENTIST:
-    return "scientist";
-  case CITIZEN_TAXMAN:
-    return "tax_collector";
+  switch (citizen.type) {
+  case CITIZEN_SPECIALIST:
+    return game.rgame.specialists[citizen.spec_type].name;
   case CITIZEN_HAPPY:
     return "happy";
   case CITIZEN_CONTENT:
@@ -917,7 +913,7 @@
   case CITIZEN_ANGRY:
     return "angry";
   default:
-    die("unknown citizen type %d", (int) citizen);
+    die("unknown citizen type %d", (int) citizen.type);
   }
   return NULL;
 }
@@ -958,6 +954,50 @@
 #define SET_SPRITE_OPT(field, tag) \
   sprites.field = load_sprite(tag)
 
+void tilespec_setup_citizen_types(void)
+{
+  int i, j;
+  char buffer[512];
+
+  /* Load the citizen sprite graphics. */
+  for (i = 0; i < NUM_TILES_CITIZEN + SP_COUNT; i++) {
+    struct citizen_type c;
+
+    if (i >= NUM_TILES_CITIZEN) {
+      c.type = CITIZEN_SPECIALIST;
+      c.spec_type = i - NUM_TILES_CITIZEN;
+    } else {
+      c.type = i;
+      if (i == CITIZEN_SPECIALIST) {
+       continue;
+      }
+    }
+
+    my_snprintf(buffer, sizeof(buffer), "citizen.%s", get_citizen_name(c));
+    sprites.citizen[i].sprite[0] = load_sprite(buffer);
+    if (sprites.citizen[i].sprite[0]) {
+      /*
+       * If this form exists, use it as the only sprite.  This allows
+       * backwards compatability with tilesets that use e.g.,
+       * citizen.entertainer.
+       */
+      sprites.citizen[i].count = 1;
+      continue;
+    }
+
+    for (j = 0; j < NUM_TILES_CITIZEN; j++) {
+      my_snprintf(buffer, sizeof(buffer), "citizen.%s_%d",
+                 get_citizen_name(c), j);
+      sprites.citizen[i].sprite[j] = load_sprite(buffer);
+      if (!sprites.citizen[i].sprite[j]) {
+       break;
+      }
+    }
+    sprites.citizen[i].count = j;
+    assert(j > 0);
+  }
+}
+
 /**********************************************************************
   Initialize 'sprites' structure based on hardwired tags which
   freeciv always requires. 
@@ -966,7 +1006,7 @@
 {
   char buffer[512];
   const char dir_char[] = "nsew";
-  int i, j;
+  int i;
   
   assert(sprite_hash != NULL);
 
@@ -988,36 +1028,11 @@
     SET_SPRITE(dither_tile, "t.dither_tile");
   }
 
+  tilespec_setup_citizen_types();
   SET_SPRITE(tax_luxury, "s.tax_luxury");
   SET_SPRITE(tax_science, "s.tax_science");
   SET_SPRITE(tax_gold, "s.tax_gold");
 
-  /* Load the citizen sprite graphics. */
-  for (i = 0; i < NUM_TILES_CITIZEN; i++) {
-    my_snprintf(buffer, sizeof(buffer), "citizen.%s", get_citizen_name(i));
-    sprites.citizen[i].sprite[0] = load_sprite(buffer);
-    if (sprites.citizen[i].sprite[0]) {
-      /*
-       * If this form exists, use it as the only sprite.  This allows
-       * backwards compatability with tilesets that use e.g.,
-       * citizen.entertainer.
-       */
-      sprites.citizen[i].count = 1;
-      continue;
-    }
-
-    for (j = 0; j < NUM_TILES_CITIZEN; j++) {
-      my_snprintf(buffer, sizeof(buffer), "citizen.%s_%d",
-                 get_citizen_name(i), j);
-      sprites.citizen[i].sprite[j] = load_sprite(buffer);
-      if (!sprites.citizen[i].sprite[j]) {
-       break;
-      }
-    }
-    sprites.citizen[i].count = j;
-    assert(j > 0);
-  }
-
   SET_SPRITE(spaceship.solar_panels, "spaceship.solar_panels");
   SET_SPRITE(spaceship.life_support, "spaceship.life_support");
   SET_SPRITE(spaceship.habitation,   "spaceship.habitation");
@@ -2636,12 +2651,20 @@
   value indicates there is no city; i.e., the sprite is just being
   used as a picture).
 **************************************************************************/
-struct Sprite *get_citizen_sprite(enum citizen_type type, int citizen_index,
+struct Sprite *get_citizen_sprite(struct citizen_type type,
+                                 int citizen_index,
                                  struct city *pcity)
 {
-  assert(type >= 0 && type < NUM_TILES_CITIZEN);
-  citizen_index %= sprites.citizen[type].count;
-  return sprites.citizen[type].sprite[citizen_index];
+  int i;
+
+  if (type.type == CITIZEN_SPECIALIST) {
+    i = NUM_TILES_CITIZEN + type.spec_type;
+  } else {
+    i = type.type;
+  }
+  assert(i >= 0 && i < NUM_TILES_CITIZEN + SP_COUNT);
+  citizen_index %= sprites.citizen[i].count;
+  return sprites.citizen[i].sprite[citizen_index];
 }
 
 /**************************************************************************
Index: client/tilespec.h
===================================================================
RCS file: /home/freeciv/CVS/freeciv/client/tilespec.h,v
retrieving revision 1.70
diff -u -r1.70 tilespec.h
--- client/tilespec.h   6 Jun 2004 06:09:46 -0000       1.70
+++ client/tilespec.h   16 Jun 2004 03:26:17 -0000
@@ -54,6 +54,7 @@
 void tilespec_reread(const char *tileset_name);
 void tilespec_reread_callback(struct client_option *option);
 
+void tilespec_setup_citizen_types(void);
 void tilespec_setup_unit_type(int id);
 void tilespec_setup_impr_type(int id);
 void tilespec_setup_tech_type(int id);
@@ -159,7 +160,7 @@
      * sprites, as defined by the tileset. */
     int count;
     struct Sprite *sprite[MAX_NUM_CITIZEN_SPRITES];
-  } citizen[NUM_TILES_CITIZEN];
+  } citizen[NUM_TILES_CITIZEN + MAX_NUM_SPECIALISTS - 1];
   struct {
     struct Sprite
       *solar_panels,
@@ -253,7 +254,7 @@
 
 extern struct named_sprites sprites;
 
-struct Sprite *get_citizen_sprite(enum citizen_type type, int citizen_index,
+struct Sprite *get_citizen_sprite(struct citizen_type type, int citizen_index,
                                  struct city *pcity);
 
 /* full pathnames: */
Index: client/agents/cma_core.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/client/agents/cma_core.c,v
retrieving revision 1.53
diff -u -r1.53 cma_core.c
--- client/agents/cma_core.c    29 May 2004 20:34:31 -0000      1.53
+++ client/agents/cma_core.c    16 Jun 2004 03:26:17 -0000
@@ -103,6 +103,18 @@
   return worker;
 }
 
+static int count_specialist(struct city *pcity,
+                           const struct cm_result *const result)
+{
+  int count = 0, sp;
+
+  for (sp = 0; sp < SP_COUNT; sp++) {
+    count += result->specialists[sp];
+  }
+
+  return count;
+}
+
 #define T(x) if (result1->x != result2->x) { \
        freelog(RESULTS_ARE_EQUAL_LOG_LEVEL, #x); \
        return FALSE; }
@@ -115,11 +127,14 @@
                             const struct cm_result *const result1,
                             const struct cm_result *const result2)
 {
+  int sp;
+
   T(disorder);
   T(happy);
-  T(specialists[SP_ELVIS]);
-  T(specialists[SP_SCIENTIST]);
-  T(specialists[SP_TAXMAN]);
+
+  for (sp = 0; sp < SP_COUNT; sp++) {
+    T(specialists[sp]);
+  }
 
   T(production[FOOD]);
   T(production[SHIELD]);
@@ -156,11 +171,13 @@
 {
   freelog(LOG_NORMAL, "print_city(city='%s'(id=%d))",
          pcity->name, pcity->id);
+#if 0
   freelog(LOG_NORMAL,
          "  size=%d, entertainers=%d, scientists=%d, taxmen=%d",
          pcity->size, pcity->specialists[SP_ELVIS],
          pcity->specialists[SP_SCIENTIST],
          pcity->specialists[SP_TAXMAN]);
+#endif
   freelog(LOG_NORMAL, "  workers at:");
   my_city_map_iterate(pcity, x, y) {
     if (pcity->city_map[x][y] == C_TILE_WORKER) {
@@ -188,7 +205,7 @@
 static void print_result(struct city *pcity,
                         const struct cm_result *const result)
 {
-  int y, i, worker = count_worker(pcity, result);
+  int y, i;
 
   freelog(LOG_NORMAL, "print_result(result=%p)", result);
   freelog(LOG_NORMAL,
@@ -223,10 +240,12 @@
     freelog(LOG_NORMAL, "print_result: %s", line);
   }
 
+#if 0
   freelog(LOG_NORMAL,
          "print_result:  people: W/E/S/T %d/%d/%d/%d",
-         worker, result->specialists[SP_ELVIS],
+         count_worker(pcity, result), result->specialists[SP_ELVIS],
          result->specialists[SP_SCIENTIST], result->specialists[SP_TAXMAN]);
+#endif
 
   for (i = 0; i < NUM_STATS; i++) {
     freelog(LOG_NORMAL,
@@ -269,7 +288,7 @@
 static void get_current_as_result(struct city *pcity,
                                  struct cm_result *result)
 {
-  int worker = 0, i;
+  int worker = 0, i, specialists = 0;
 
   memset(result->worker_positions_used, 0,
         sizeof(result->worker_positions_used));
@@ -284,11 +303,10 @@
 
   for (i = 0; i < SP_COUNT; i++) {
     result->specialists[i] = pcity->specialists[i];
+    specialists += pcity->specialists[i];
   }
 
-  assert(worker + result->specialists[SP_ELVIS]
-        + result->specialists[SP_SCIENTIST]
-        + result->specialists[SP_TAXMAN] == pcity->size);
+  assert(worker + specialists == pcity->size);
 
   result->found_a_valid = TRUE;
 
@@ -352,10 +370,7 @@
 
   /* Do checks */
   worker = count_worker(pcity, result);
-  if (pcity->size !=
-      (worker + result->specialists[SP_ELVIS]
-       + result->specialists[SP_SCIENTIST]
-       + result->specialists[SP_TAXMAN])) {
+  if (pcity->size != (worker + count_specialist(pcity, result))) {
     print_city(pcity);
     print_result(pcity, result);
     assert(0);
@@ -372,11 +387,13 @@
     }
   } my_city_map_iterate_end;
 
-  /* Change the excess non-elvis specialists to elvises. */
-  assert(SP_ELVIS == 0);
-  for (sp = 1; sp < SP_COUNT; sp++) {
+  /* Change the excess non-(default) specialists to (default). */
+  for (sp = 0; sp < SP_COUNT; sp++) {
+    if (sp == DEFAULT_SPECIALIST) {
+      continue;
+    }
     for (i = 0; i < pcity->specialists[sp] - result->specialists[sp]; i++) {
-      last_request_id = city_change_specialist(pcity, sp, SP_ELVIS);
+      last_request_id = city_change_specialist(pcity, sp, DEFAULT_SPECIALIST);
       if (first_request_id == 0) {
        first_request_id = last_request_id;
       }
@@ -386,8 +403,8 @@
   /* now all surplus people are enterainers */
 
   /* Set workers */
-  /* FIXME: This code assumes that any toggled worker will turn into an
-   * elvis! */
+  /* FIXME: This code assumes that any toggled worker will turn into a
+   * DEFAULT_SPECIALIST! */
   my_city_map_iterate(pcity, x, y) {
     if (result->worker_positions_used[x][y] &&
        pcity->city_map[x][y] != C_TILE_WORKER) {
@@ -399,12 +416,14 @@
     }
   } my_city_map_iterate_end;
 
-  /* Set all specialists except SP_ELVIS (all the unchanged ones remain
-   * as elvises). */
-  assert(SP_ELVIS == 0);
-  for (sp = 1; sp < SP_COUNT; sp++) {
+  /* Set all specialists except DEFAULT_SPECIALIST (all the unchanged ones
+   * remain as DEFAULT_SPECIALIST). */
+  for (sp = 0; sp < SP_COUNT; sp++) {
+    if (sp == DEFAULT_SPECIALIST) {
+      continue;
+    }
     for (i = 0; i < result->specialists[sp] - pcity->specialists[sp]; i++) {
-      last_request_id = city_change_specialist(pcity, SP_ELVIS, sp);
+      last_request_id = city_change_specialist(pcity, DEFAULT_SPECIALIST, sp);
       if (first_request_id == 0) {
        first_request_id = last_request_id;
       }
Index: client/agents/cma_fec.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/client/agents/cma_fec.c,v
retrieving revision 1.20
diff -u -r1.20 cma_fec.c
--- client/agents/cma_fec.c     29 May 2004 20:34:31 -0000      1.20
+++ client/agents/cma_fec.c     16 Jun 2004 03:26:18 -0000
@@ -359,6 +359,7 @@
     my_snprintf(buf[5], BUFFER_SIZE, "%3d(%+3d)",
                result->production[SCIENCE], result->surplus[SCIENCE]);
 
+#if 0
     my_snprintf(buf[6], BUFFER_SIZE, "%d/%d/%d/%d%s",
                pcity->size -
                (result->specialists[SP_ELVIS]
@@ -368,6 +369,9 @@
                result->specialists[SP_SCIENTIST],
                result->specialists[SP_TAXMAN],
                result->happy ? _(" happy") : "");
+#else
+    my_snprintf(buf[6], BUFFER_SIZE, "FIXME");
+#endif
 
     my_snprintf(buf[7], BUFFER_SIZE, "%s",
                get_city_growth_string(pcity, result->surplus[FOOD]));
Index: client/gui-gtk-2.0/citydlg.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/client/gui-gtk-2.0/citydlg.c,v
retrieving revision 1.88
diff -u -r1.88 citydlg.c
--- client/gui-gtk-2.0/citydlg.c        24 May 2004 13:00:51 -0000      1.88
+++ client/gui-gtk-2.0/citydlg.c        16 Jun 2004 03:26:19 -0000
@@ -1262,7 +1262,7 @@
 {
   int i, width;
   struct city *pcity = pdialog->pcity;
-  enum citizen_type citizens[MAX_CITY_SIZE];
+  struct citizen_type citizens[MAX_CITY_SIZE];
 
   /* If there is not enough space we stack the icons. We draw from left to */
   /* right. width is how far we go to the right for each drawn pixmap. The */
Index: client/gui-gtk-2.0/gui_main.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/client/gui-gtk-2.0/gui_main.c,v
retrieving revision 1.73
diff -u -r1.73 gui_main.c
--- client/gui-gtk-2.0/gui_main.c       6 Jun 2004 06:00:08 -0000       1.73
+++ client/gui-gtk-2.0/gui_main.c       16 Jun 2004 03:26:19 -0000
@@ -671,7 +671,8 @@
   int i;
   struct Sprite *sprite;
   GtkCellRenderer *rend;
-
+  struct citizen_type c;
+  
   main_tips = gtk_tooltips_new();
 
   /* the window is divided into two panes. "top" and "message window" */ 
@@ -803,6 +804,9 @@
   gtk_container_add(GTK_CONTAINER(ebox), table2);
   
   for (i = 0; i < 10; i++) {
+    c.type = CITIZEN_SPECIALIST;
+    c.spec_type = 0;
+
     ebox = gtk_event_box_new();
     gtk_widget_add_events(ebox, GDK_BUTTON_PRESS_MASK);
 
@@ -811,8 +815,12 @@
     g_signal_connect(ebox, "button_press_event",
                      G_CALLBACK(taxrates_callback), GINT_TO_POINTER(i));
 
-    sprite = i < 5 ? sprites.tax_science : sprites.tax_gold;
+#if 0
+    sprite = get_citizen_sprite(c, i, NULL);
     econ_label[i] = gtk_image_new_from_pixmap(sprite->pixmap, sprite->mask);
+#endif
+    /* FIXME: use different tags (not the specialists) for these graphics. */
+    econ_label[i] = gtk_image_new();
     gtk_container_add(GTK_CONTAINER(ebox), econ_label[i]);
   }
 
@@ -820,7 +828,8 @@
   bulb_label = gtk_image_new_from_pixmap(sprites.bulb[0]->pixmap, NULL);
   sun_label = gtk_image_new_from_pixmap(sprites.warming[0]->pixmap, NULL);
   flake_label = gtk_image_new_from_pixmap(sprites.cooling[0]->pixmap, NULL);
-  sprite = get_citizen_sprite(CITIZEN_UNHAPPY, 0, NULL);
+  c.type = CITIZEN_UNHAPPY;
+  sprite = get_citizen_sprite(c, 0, NULL);
   government_label = gtk_image_new_from_pixmap(sprite->pixmap, sprite->mask);
 
   for (i = 0; i < 4; i++) {
Index: client/gui-gtk-2.0/happiness.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/client/gui-gtk-2.0/happiness.c,v
retrieving revision 1.12
diff -u -r1.12 happiness.c
--- client/gui-gtk-2.0/happiness.c      5 May 2004 20:39:15 -0000       1.12
+++ client/gui-gtk-2.0/happiness.c      16 Jun 2004 03:26:19 -0000
@@ -153,7 +153,7 @@
 static void refresh_pixcomm(GtkPixcomm *dst, struct city *pcity, int index)
 {
   int i;
-  enum citizen_type citizens[MAX_CITY_SIZE];
+  struct citizen_type citizens[MAX_CITY_SIZE];
   int num_citizens = pcity->size;
   int offset = MIN(SMALL_TILE_WIDTH, PIXCOMM_WIDTH / num_citizens);
 
Index: client/gui-gtk-2.0/mapview.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/client/gui-gtk-2.0/mapview.c,v
retrieving revision 1.129
diff -u -r1.129 mapview.c
--- client/gui-gtk-2.0/mapview.c        10 Jun 2004 01:04:53 -0000      1.129
+++ client/gui-gtk-2.0/mapview.c        16 Jun 2004 03:26:19 -0000
@@ -124,6 +124,31 @@
 {
   int  d;
   int  sol, flake;
+  int lux_specialist = DEFAULT_SPECIALIST,
+    sci_specialist = DEFAULT_SPECIALIST,
+    tax_specialist = DEFAULT_SPECIALIST;
+
+  {
+    /* The tileset should specify different tags for science, luxury,
+     * and tax percentage sprites.  Instead we just guess the best
+     * specialist to use the sprite from. */
+    int max_lux = -1, max_sci = -1, max_tax = -1, i;
+
+    for (i = 0; i < SP_COUNT; i++) {
+      if (game.rgame.specialists[i].bonus_lux > max_lux) {
+       max_lux = game.rgame.specialists[i].bonus_lux;
+       lux_specialist = i;
+      }
+      if (game.rgame.specialists[i].bonus_sci > max_sci) {
+       max_sci = game.rgame.specialists[i].bonus_sci;
+       sci_specialist = i;
+      }
+      if (game.rgame.specialists[i].bonus_tax > max_tax) {
+       max_tax = game.rgame.specialists[i].bonus_tax;
+       tax_specialist = i;
+      }
+    }
+  }
 
   gtk_frame_set_label(GTK_FRAME(main_frame_civ_name),
                      get_nation_name(game.player_ptr->nation));
@@ -250,7 +275,8 @@
 
   if (game.government_count==0) {
     /* not sure what to do here */
-    gov_sprite = get_citizen_sprite(CITIZEN_UNHAPPY, 0, NULL);
+    struct citizen_type c = {CITIZEN_UNHAPPY};
+    gov_sprite = get_citizen_sprite(c, 0, NULL);
   } else {
     gov_sprite = get_government(gov)->sprite;
   }
Index: common/capstr.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/common/capstr.c,v
retrieving revision 1.169
diff -u -r1.169 capstr.c
--- common/capstr.c     12 Jun 2004 17:42:27 -0000      1.169
+++ common/capstr.c     16 Jun 2004 03:26:19 -0000
@@ -77,7 +77,7 @@
 #define CAPABILITY "+1.14.delta +last_turns_shield_surplus veteran +orders " \
                    "+starter +union +iso_maps +big_map_size +orders2client " \
                    "+change_production +tilespec1 +no_earth +trans " \
-                   "+want_hack invasions bombard +killstack2 spec +spec2 " \
+                   "+want_hack invasions bombard +killstack2 spec +spec3 " \
                    "+city_map"
 
 /* "+1.14.delta" is the new delta protocol for 1.14.0-dev.
@@ -121,7 +121,7 @@
  * 
  * "spec" is configurable specialists
  *
- * "spec2" is semi-configurable specialists in an array
+ * "spec3" is configurable specialists in an array
  *
  * "city_map" means the city_map is sent as an array instead of a bitfield.
  */
Index: common/city.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/common/city.c,v
retrieving revision 1.220
diff -u -r1.220 city.c
--- common/city.c       16 Jun 2004 03:01:02 -0000      1.220
+++ common/city.c       16 Jun 2004 03:26:19 -0000
@@ -537,8 +537,7 @@
 /****************************************************************************
   Returns TRUE iff if the given city can use this kind of specialist.
 ****************************************************************************/
-bool city_can_use_specialist(const struct city *pcity,
-                            enum specialist_type type)
+bool city_can_use_specialist(const struct city *pcity, int type)
 {
   return pcity->size >= game.rgame.specialists[type].min_size;
 }
@@ -1814,6 +1813,7 @@
   int sci_rest, tax_rest, lux_rest;
   struct player *pplayer = city_owner(pcity);
   int sci_rate, lux_rate, tax_rate;
+  int i;
 
   if (game.rgame.changable_tax) {
     sci_rate = pplayer->economic.science;
@@ -1908,17 +1908,15 @@
 
   assert(sci + tax + lux == pcity->trade_prod);
 
+  for (i = 0; i < game.rgame.num_specialist_types; i++) {
+    lux += pcity->specialists[i] * game.rgame.specialists[i].bonus_lux;
+    sci += pcity->specialists[i] * game.rgame.specialists[i].bonus_sci;
+    tax += pcity->specialists[i] * game.rgame.specialists[i].bonus_tax;
+  }
+
   pcity->science_total = sci;
-  pcity->tax_total = tax;
+  pcity->tax_total = tax + get_city_tithes_bonus(pcity);
   pcity->luxury_total = lux;
-
-  pcity->luxury_total += (pcity->specialists[SP_ELVIS]
-                         * game.rgame.specialists[SP_ELVIS].bonus);
-  pcity->science_total += (pcity->specialists[SP_SCIENTIST]
-                          * game.rgame.specialists[SP_SCIENTIST].bonus);
-  pcity->tax_total += ((pcity->specialists[SP_TAXMAN]
-                       * game.rgame.specialists[SP_TAXMAN].bonus) 
-                      + get_city_tithes_bonus(pcity));
 }
 
 /**************************************************************************
@@ -2503,13 +2501,55 @@
 {
   int count = 0, i;
 
-  for (i = 0; i < SP_COUNT; i++) {
+  for (i = 0; i < game.rgame.num_specialist_types; i++) {
     count += pcity->specialists[i];
   }
 
   return count;
 }
 
+int best_science_specialist(void)
+{
+  int best = DEFAULT_SPECIALIST, val = -1, i;
+
+  for (i = 0; i < SP_COUNT; i++) {
+    if (game.rgame.specialists[i].bonus_sci > val) {
+      best = i;
+      val = game.rgame.specialists[i].bonus_sci;
+    }
+  }
+
+  return best;
+}
+
+int best_tax_specialist(void)
+{
+  int best = DEFAULT_SPECIALIST, val = -1, i;
+
+  for (i = 0; i < SP_COUNT; i++) {
+    if (game.rgame.specialists[i].bonus_tax > val) {
+      best = i;
+      val = game.rgame.specialists[i].bonus_tax;
+    }
+  }
+
+  return best;
+}
+
+int best_luxury_specialist(void)
+{
+  int best = DEFAULT_SPECIALIST, val = -1, i;
+
+  for (i = 0; i < SP_COUNT; i++) {
+    if (game.rgame.specialists[i].bonus_lux > val) {
+      best = i;
+      val = game.rgame.specialists[i].bonus_lux;
+    }
+  }
+
+  return best;
+}
+
 /**************************************************************************
   Return the power (pacifying effect) of temples in the city.
 **************************************************************************/
@@ -2657,10 +2697,10 @@
   pcity->y = y;
   sz_strlcpy(pcity->name, name);
   pcity->size = 1;
-  for (i = 0; i < SP_COUNT; i++) {
+  for (i = 0; i < game.rgame.num_specialist_types; i++) {
     pcity->specialists[i] = 0;
   }
-  pcity->specialists[SP_ELVIS] = 1;
+  pcity->specialists[DEFAULT_SPECIALIST] = 1;
   pcity->ppl_happy[4] = 0;
   pcity->ppl_content[4] = 1;
   pcity->ppl_unhappy[4] = 0;
Index: common/city.h
===================================================================
RCS file: /home/freeciv/CVS/freeciv/common/city.h,v
retrieving revision 1.149
diff -u -r1.149 city.h
--- common/city.h       14 Jun 2004 23:43:08 -0000      1.149
+++ common/city.h       16 Jun 2004 03:26:19 -0000
@@ -25,10 +25,6 @@
   TYPE_UNIT, TYPE_NORMAL_IMPROVEMENT, TYPE_WONDER
 };
 
-enum specialist_type {
-  SP_ELVIS, SP_SCIENTIST, SP_TAXMAN, SP_COUNT
-};
-
 enum city_tile_type {
   C_TILE_EMPTY, C_TILE_WORKER, C_TILE_UNAVAILABLE
 };
@@ -82,6 +78,9 @@
  */
 #define MAX_CITY_SIZE                                  100
 
+/* Maximum number of specialist types. */
+#define MAX_NUM_SPECIALISTS 20
+
 /*
  * Iterate a city map.  This iterates over all city positions in the
  * city map (i.e., positions that are workable by the city) in unspecified
@@ -228,7 +227,7 @@
   int ppl_happy[5], ppl_content[5], ppl_unhappy[5], ppl_angry[5];
 
   /* Specialists */
-  int specialists[SP_COUNT];
+  int specialists[MAX_NUM_SPECIALISTS];
 
   /* trade routes */
   int trade[NUM_TRADEROUTES], trade_value[NUM_TRADEROUTES];
@@ -363,7 +362,7 @@
 bool can_build_unit(const struct city *pcity, Unit_Type_id id);
 bool can_build_unit_direct(const struct city *pcity, Unit_Type_id id);
 bool can_eventually_build_unit(const struct city *pcity, Unit_Type_id id);
-bool city_can_use_specialist(const struct city *pcity, enum specialist_type 
type);
+bool city_can_use_specialist(const struct city *pcity, int type);
 bool city_got_building(const struct city *pcity,  Impr_Type_id id); 
 bool city_affected_by_wonder(const struct city *pcity, Impr_Type_id id);
 bool city_got_effect(const struct city *pcity, Impr_Type_id id);
@@ -479,6 +478,9 @@
 int city_corruption(const struct city *pcity, int trade);
 int city_waste(const struct city *pcity, int shields);
 int city_specialists(const struct city *pcity);                 /* 
elv+tax+scie */
+int best_science_specialist(void);
+int best_tax_specialist(void);
+int best_luxury_specialist(void);
 int get_temple_power(const struct city *pcity);
 int get_cathedral_power(const struct city *pcity);
 int get_colosseum_power(const struct city *pcity);
Index: common/game.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/common/game.c,v
retrieving revision 1.180
diff -u -r1.180 game.c
--- common/game.c       18 May 2004 16:29:30 -0000      1.180
+++ common/game.c       16 Jun 2004 03:26:20 -0000
@@ -73,13 +73,16 @@
 **************************************************************************/
 int total_player_citizens(struct player *pplayer)
 {
-  return (pplayer->score.happy
-         +pplayer->score.content
-         +pplayer->score.unhappy
-         +pplayer->score.angry
-         +pplayer->score.scientists
-         +pplayer->score.elvis
-         +pplayer->score.taxmen);
+  int count = (pplayer->score.happy
+              +pplayer->score.content
+              +pplayer->score.unhappy
+              +pplayer->score.angry), sp;
+
+  for (sp = 0; sp < SP_COUNT; sp++) {
+    count += pplayer->score.specialists[sp];
+  }
+
+  return count;
 }
 
 /**************************************************************************
Index: common/game.h
===================================================================
RCS file: /home/freeciv/CVS/freeciv/common/game.h,v
retrieving revision 1.142
diff -u -r1.142 game.h
--- common/game.h       9 Jun 2004 04:39:12 -0000       1.142
+++ common/game.h       16 Jun 2004 03:26:20 -0000
@@ -186,10 +186,15 @@
 
   /* values from game.ruleset */
   struct {
-    struct {
+    struct specialist_type {
       char name[MAX_LEN_NAME];
-      int min_size, bonus;
-    } specialists[SP_COUNT];
+      int min_size;
+      int bonus_sci, bonus_tax, bonus_lux;
+    } specialists[MAX_NUM_SPECIALISTS];
+#define DEFAULT_SPECIALIST game.rgame.default_specialist
+#define SP_COUNT game.rgame.num_specialist_types
+    int default_specialist, num_specialist_types;
+
     bool changable_tax;
     int forced_science; /* only relevant if !changable_tax */
     int forced_luxury;
Index: common/packets.def
===================================================================
RCS file: /home/freeciv/CVS/freeciv/common/packets.def,v
retrieving revision 1.29
diff -u -r1.29 packets.def
--- common/packets.def  12 Jun 2004 17:42:27 -0000      1.29
+++ common/packets.def  16 Jun 2004 03:26:20 -0000
@@ -161,7 +161,7 @@
 type EVENT             = sint16(enum event_type)
 type TERRAIN           = uint8(enum tile_terrain_type)
 type SPECIAL           = uint16(enum tile_special_type)
-type SPECIALIST                = uint8(enum specialist_type)
+type SPECIALIST                = uint8(int)
 type DIPLOMAT_ACTION   = uint8(enum diplomat_actions)
 type CMDLEVEL          = uint8(enum cmdlevel_id)
 type PLACE_TYPE                = uint8(enum spaceship_place_type)
@@ -386,7 +386,7 @@
 
   UINT8 ppl_happy[5], ppl_content[5], ppl_unhappy[5], ppl_angry[5];
 
-  UINT8 specialists[SP_COUNT];
+  UINT8 specialists[MAX_NUM_SPECIALISTS];
 
   UINT16 food_prod, shield_prod, trade_prod;
   SINT16 food_surplus, shield_surplus, tile_trade;
@@ -961,9 +961,12 @@
 end
 
 PACKET_RULESET_GAME=97;sc,lsend
-  STRING specialist_name[SP_COUNT][MAX_LEN_NAME];
-  UINT8 specialist_min_size[SP_COUNT];
-  UINT8 specialist_bonus[SP_COUNT];
+  UINT8 default_specialist, num_specialist_types;
+  STRING 
specialist_name[MAX_NUM_SPECIALISTS:num_specialist_types][MAX_LEN_NAME];
+  UINT8 specialist_min_size[MAX_NUM_SPECIALISTS:num_specialist_types];
+  UINT8 specialist_bonus_sci[MAX_NUM_SPECIALISTS:num_specialist_types];
+  UINT8 specialist_bonus_tax[MAX_NUM_SPECIALISTS:num_specialist_types];
+  UINT8 specialist_bonus_lux[MAX_NUM_SPECIALISTS:num_specialist_types];
   BOOL changable_tax; add-cap(spec)
   UINT8 forced_science; add-cap(spec)
   UINT8 forced_luxury; add-cap(spec)
Index: common/player.h
===================================================================
RCS file: /home/freeciv/CVS/freeciv/common/player.h,v
retrieving revision 1.115
diff -u -r1.115 player.h
--- common/player.h     23 Apr 2004 22:58:06 -0000      1.115
+++ common/player.h     16 Jun 2004 03:26:20 -0000
@@ -103,9 +103,7 @@
   int content;
   int unhappy;
   int angry;
-  int taxmen;
-  int scientists;
-  int elvis;
+  int specialists[MAX_NUM_SPECIALISTS];
   int wonders;
   int techs;
   int techout;
Index: common/aicore/cm.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/common/aicore/cm.c,v
retrieving revision 1.26
diff -u -r1.26 cm.c
--- common/aicore/cm.c  16 Jun 2004 03:01:02 -0000      1.26
+++ common/aicore/cm.c  16 Jun 2004 03:26:20 -0000
@@ -147,28 +147,9 @@
 #define SHOW_TIME_STATS                                 FALSE
 #define DISABLE_CACHE3                                  FALSE
 
-#define NUM_SPECIALISTS_ROLES                          3
 #define MAX_FIELDS_USED                                        (CITY_TILES - 1)
 #define MAX_COMBINATIONS                               150
 
-/*
- * Maps (trade, taxmen) -> (gold_production, gold_surplus)
- * Maps (trade, entertainers) -> (luxury_production, luxury_surplus)
- * Maps (trade, scientists) -> (science_production, science_surplus)
- * Maps (luxury, workers) -> (city_is_in_disorder, city_is_happy)
- */
-static struct {
-  int allocated_trade, allocated_size, allocated_luxury;
-
-  struct secondary_stat {
-    bool is_valid;
-    short int production, surplus;
-  } *secondary_stats;
-  struct city_status {
-    bool is_valid, disorder, happy;
-  } *city_status;
-} cache2;
-
 /* 
  * Contains all combinations. Caches all the data about a city across
  * multiple cm_query_result calls about the same city.
@@ -179,7 +160,9 @@
   struct {
     struct combination {
       bool is_valid;
-      int max_scientists, max_taxmen, worker;
+      int worker;
+      int max_specialists[MAX_NUM_SPECIALISTS];
+      int cache1_size;
       int production2[NUM_PRIMARY_STATS];
       enum city_tile_type worker_positions[CITY_MAP_SIZE][CITY_MAP_SIZE];
 
@@ -203,7 +186,7 @@
   int queries;
   struct cache_stats {
     int hits, misses;
-  } cache1, cache2, cache3;
+  } cache1, cache3;
 } stats;
 
 /*
@@ -226,6 +209,9 @@
   } city_map_checked_iterate_end;    \
 }
 
+/* The specialist with best luxury production. */
+static int best_entertainer;
+
 /****************************************************************************
  * implementation of utility functions (these are relatively independent
  * of the algorithms used)
@@ -301,6 +287,17 @@
   return TRUE;
 }
 
+static int get_num_specialists(const struct cm_result *const result)
+{
+  int i, count = 0;
+
+  for (i = 0; i < game.rgame.num_specialist_types; i++) {
+    count += result->specialists[i];
+  }
+
+  return count;
+}
+
 /****************************************************************************
  Returns TRUE iff is the result has the required surplus and the city
  isn't in disorder and the city is happy if this is required.
@@ -311,8 +308,7 @@
   int i;
 
   if (!parameter->allow_specialists
-      && (result->specialists[SP_ELVIS] + result->specialists[SP_SCIENTIST]
-         + result->specialists[SP_TAXMAN]) >
+      && (get_num_specialists(result)) >
       MAX(0,cache3.pcity->size - cache3.fields_available_total)) {
     return FALSE;
   }
@@ -340,11 +336,13 @@
 {
   freelog(LOG_NORMAL, "print_city(city='%s'(id=%d))",
          pcity->name, pcity->id);
+#if 0
   freelog(LOG_NORMAL,
          "  size=%d, entertainers=%d, scientists=%d, taxmen=%d",
          pcity->size, pcity->specialists[SP_ELVIS],
          pcity->specialists[SP_SCIENTIST],
          pcity->specialists[SP_TAXMAN]);
+#endif
   freelog(LOG_NORMAL, "  workers at:");
   my_city_map_iterate(pcity, x, y) {
     if (pcity->city_map[x][y] == C_TILE_WORKER) {
@@ -372,7 +370,7 @@
 static void print_result(struct city *pcity,
                         const struct cm_result *const result)
 {
-  int y, i, worker = count_worker(pcity, result);
+  int y, i;
 
   freelog(LOG_NORMAL, "print_result(result=%p)", result);
   freelog(LOG_NORMAL,
@@ -407,11 +405,13 @@
     freelog(LOG_NORMAL, "print_result: %s", line);
   }
 
+#if 0
   freelog(LOG_NORMAL,
          "print_result:  people: W/E/S/T %d/%d/%d/%d",
-         worker, result->specialists[SP_ELVIS],
+         count_worker(pcity, result), result->specialists[SP_ELVIS],
          result->specialists[SP_SCIENTIST],
          result->specialists[SP_TAXMAN]);
+#endif
 
   for (i = 0; i < NUM_STATS; i++) {
     freelog(LOG_NORMAL,
@@ -470,108 +470,6 @@
 }
 
 /****************************************************************************
- Wraps the array access to cache2.secondary_stats.
-*****************************************************************************/
-static struct secondary_stat *get_secondary_stat(int trade, int specialists,
-                                                enum specialist_type
-                                                specialist_type)
-{
-  freelog(LOG_DEBUG, "second: trade=%d spec=%d type=%d", trade, specialists,
-         specialist_type);
-
-  assert(trade >= 0 && trade < cache2.allocated_trade);
-  assert(specialists >= 0 && specialists < cache2.allocated_size);
-
-  return &cache2.secondary_stats[NUM_SPECIALISTS_ROLES *
-                                (cache2.allocated_size * trade +
-                                 specialists) + specialist_type];
-}
-
-/****************************************************************************
- Wraps the array access to cache2.city_status.
-*****************************************************************************/
-static struct city_status *get_city_status(int luxury, int workers)
-{
-  freelog(LOG_DEBUG, "status: lux=%d worker=%d", luxury, workers);
-
-  assert(luxury >=0 && luxury < cache2.allocated_luxury);
-  assert(workers >= 0 && workers < cache2.allocated_size);
-
-  return &cache2.city_status[cache2.allocated_size * luxury + workers];
-}
-
-/****************************************************************************
- Update the cache2 according to the filled out result. If the info is
- already in the cache check that the two match.
-*****************************************************************************/
-static void update_cache2(struct city *pcity,
-                         const struct cm_result *const result)
-{
-  struct secondary_stat *p;
-  struct city_status *q;
-
-  /*
-   * Science is set to 0 if the city is unhappy/in disorder. See
-   * unhappy_city_check.
-   */
-  if (!result->disorder) {
-    p = get_secondary_stat(result->production[TRADE],
-                          result->specialists[SP_SCIENTIST],
-                          SP_SCIENTIST);
-    if (!p->is_valid) {
-      p->production = result->production[SCIENCE];
-      p->surplus = result->surplus[SCIENCE];
-      p->is_valid = TRUE;
-    } else {
-      assert(p->production == result->production[SCIENCE] &&
-            p->surplus == result->surplus[SCIENCE]);
-    }
-  }
-
-  /*
-   * Gold is set to 0 if the city is unhappy/in disorder. See
-   * unhappy_city_check.
-   */
-  if (!result->disorder) {
-    p = get_secondary_stat(result->production[TRADE],
-                          result->specialists[SP_TAXMAN],
-                          SP_TAXMAN);
-    if (!p->is_valid && !result->disorder) {
-      p->production = result->production[GOLD];
-      p->surplus = result->surplus[GOLD];
-      p->is_valid = TRUE;
-    } else {
-      assert(p->production == result->production[GOLD] &&
-            p->surplus == result->surplus[GOLD]);
-    }
-  }
-
-  p = get_secondary_stat(result->production[TRADE],
-                        result->specialists[SP_ELVIS],
-                        SP_ELVIS);
-  if (!p->is_valid) {
-    p->production = result->production[LUXURY];
-    p->surplus = result->surplus[LUXURY];
-    p->is_valid = TRUE;
-  } else {
-    if (!result->disorder) {
-      assert(p->production == result->production[LUXURY] &&
-            p->surplus == result->surplus[LUXURY]);
-    }
-  }
-
-  q = get_city_status(result->production[LUXURY],
-                     count_worker(pcity, result));
-  if (!q->is_valid) {
-    q->disorder = result->disorder;
-    q->happy = result->happy;
-    q->is_valid = TRUE;
-  } else {
-    assert(q->disorder == result->disorder && q->happy == result->happy);
-  }
-}
-
-/****************************************************************************
 ...
 *****************************************************************************/
 static void clear_cache(void)
@@ -598,17 +496,14 @@
 static void real_fill_out_result(struct city *pcity,
                                 struct cm_result *result)
 {
-  int worker = count_worker(pcity, result);
+  int worker = count_worker(pcity, result), sp;
   struct city backup;
 
   freelog(LOG_DEBUG, "real_fill_out_result(city='%s'(%d))", pcity->name,
          pcity->id);
 
   /* Do checks */
-  if (pcity->size !=
-      (worker + result->specialists[SP_ELVIS]
-       + result->specialists[SP_SCIENTIST]
-       + result->specialists[SP_TAXMAN])) {
+  if (pcity->size != (worker + get_num_specialists(result))) {
     print_city(pcity);
     print_result(pcity, result);
     assert(0);
@@ -630,9 +525,9 @@
     }
   } my_city_map_iterate_end;
 
-  pcity->specialists[SP_ELVIS] = result->specialists[SP_ELVIS];
-  pcity->specialists[SP_SCIENTIST] = result->specialists[SP_SCIENTIST];
-  pcity->specialists[SP_TAXMAN] = result->specialists[SP_TAXMAN];
+  for (sp = 0; sp < SP_COUNT; sp++) {
+    pcity->specialists[sp] = result->specialists[sp];
+  }
 
   /* Do a local recalculation of the city */
   generic_city_refresh(pcity, FALSE, NULL);
@@ -642,6 +537,7 @@
   /* Restore */
   memcpy(pcity, &backup, sizeof(struct city));
 
+#if 0
   freelog(LOG_DEBUG, "xyz: w=%d e=%d s=%d t=%d trade=%d "
          "sci=%d lux=%d tax=%d dis=%s happy=%s",
          count_worker(pcity, result), result->specialists[SP_ELVIS],
@@ -651,7 +547,7 @@
          result->production[LUXURY],
          result->production[GOLD],
          result->disorder ? "yes" : "no", result->happy ? "yes" : "no");
-  update_cache2(pcity, result);
+#endif
 }
 
 /****************************************************************************
@@ -751,7 +647,6 @@
 
 #if SHOW_CACHE_STATS
   report_one_cache_stat(&stats.cache1, "CACHE1");
-  report_one_cache_stat(&stats.cache2, "CACHE2");
   report_one_cache_stat(&stats.cache3, "CACHE3");
 #endif
 }
@@ -760,16 +655,34 @@
                            algorithmic functions
 *****************************************************************************/
 
+static int combination_spec_index(struct combination *combination,
+                                 int *specialists)
+{
+  int sp, index = 0;
+
+  for (sp = 0; sp < SP_COUNT; sp++) {
+    if (sp == best_entertainer) {
+      continue;
+    }
+
+    index *= combination->max_specialists[sp] + 1;
+    index += specialists[sp];
+  }
+
+  return index;
+}
+
 /****************************************************************************
  Frontend cache for real_fill_out_result. This method tries to avoid
  calling real_fill_out_result by all means.
 *****************************************************************************/
 static void fill_out_result(struct city *pcity, struct cm_result *result,
                            struct combination *base_combination,
-                           int scientists, int taxmen)
+                           int *specialists)
 {
   struct cm_result *slot;
-  bool got_all;
+  int sp;
+  bool all_zero = TRUE;
 
   assert(base_combination->is_valid);
 
@@ -777,23 +690,42 @@
    * First try to get a filled out result from cache1 or from the
    * all_entertainer result.
    */
-  if (scientists == 0 && taxmen == 0) {
+  for (sp = 0; sp < SP_COUNT; sp++) {
+    if (sp != best_entertainer
+       && specialists[sp] != 0) {
+      /* I used to call combination_spec_index up above.  Then if all
+       * the specialists were zero the index would be zero.  Duh.  But
+       * in some cases (with all 0's) the max_specialists fields are not
+       * filled out.  This
+       * causes valgrind to give a spurious error.  Of course 0 times and
+       * unknown value is 0, but valgrind thinks it is unknown.
+       *
+       * So, to make debugging easier I just do the check manually. */
+      all_zero = FALSE;
+      break;
+    }
+  }
+  if (all_zero) {
     slot = &base_combination->all_entertainer;
   } else {
-    assert(scientists <= base_combination->max_scientists);
-    assert(taxmen <= base_combination->max_taxmen);
+    int index = combination_spec_index(base_combination, specialists);
+
+    for (sp = 0; sp < SP_COUNT; sp++) {
+      if (sp == best_entertainer) continue;
+      assert(specialists[sp] <= base_combination->max_specialists[sp]);
+    }
     assert(base_combination->cache1 != NULL);
     assert(base_combination->all_entertainer.found_a_valid);
 
-    slot = &base_combination->cache1[scientists *
-                                    (base_combination->max_taxmen + 1) +
-                                    taxmen];
+    slot = &base_combination->cache1[index];
   }
 
+#if 0
   freelog(LOG_DEBUG,
          "fill_out_result(base_comb=%p (w=%d), scientists=%d, taxmen=%d) %s",
          base_combination, base_combination->worker, scientists,
          taxmen, slot->found_a_valid ? "CACHED" : "unknown");
+#endif
 
   if (slot->found_a_valid) {
     /* Cache1 contains the result */
@@ -808,89 +740,21 @@
        (base_combination->worker_positions[x][y] == C_TILE_WORKER);
   } my_city_map_iterate_end;
 
-  result->specialists[SP_SCIENTIST] = scientists;
-  result->specialists[SP_TAXMAN] = taxmen;
-  result->specialists[SP_ELVIS] =
-      pcity->size - (base_combination->worker + scientists + taxmen);
+  result->specialists[best_entertainer]
+    = pcity->size - base_combination->worker;
+  for (sp = 0; sp < SP_COUNT; sp++) {
+    if (sp == best_entertainer) continue;
 
+    result->specialists[sp] = specialists[sp];
+    result->specialists[best_entertainer] -= specialists[sp];
+  }
+
+#if 0
   freelog(LOG_DEBUG,
          "fill_out_result(city='%s'(%d), entrt.s=%d, scien.s=%d, taxmen=%d)",
          pcity->name, pcity->id, result->specialists[SP_ELVIS],
          result->specialists[SP_SCIENTIST], result->specialists[SP_TAXMAN]);
-
-  /* try to fill result from cache2 */
-  if (!base_combination->all_entertainer.found_a_valid) {
-    got_all = FALSE;
-  } else {
-    struct secondary_stat *p;
-    struct city_status *q;
-    int i;
-
-    got_all = TRUE;
-
-    /*
-     * fill out the primary stats that are known from the
-     * all_entertainer result
-     */
-    for (i = 0; i < NUM_PRIMARY_STATS; i++) {
-      result->production[i] =
-         base_combination->all_entertainer.production[i];
-      result->surplus[i] = base_combination->all_entertainer.surplus[i];
-    }
-
-    p = get_secondary_stat(result->production[TRADE],
-                          result->specialists[SP_SCIENTIST],
-                          SP_SCIENTIST);
-    if (!p->is_valid) {
-      got_all = FALSE;
-    } else {
-      result->production[SCIENCE] = p->production;
-      result->surplus[SCIENCE] = p->surplus;
-    }
-
-    p = get_secondary_stat(result->production[TRADE],
-                          result->specialists[SP_TAXMAN],
-                          SP_TAXMAN);
-    if (!p->is_valid) {
-      got_all = FALSE;
-    } else {
-      result->production[GOLD] = p->production;
-      result->surplus[GOLD] = p->surplus;
-    }
-
-    p = get_secondary_stat(result->production[TRADE],
-                          result->specialists[SP_ELVIS],
-                          SP_ELVIS);
-    if (!p->is_valid) {
-      got_all = FALSE;
-    } else {
-      result->production[LUXURY] = p->production;
-      result->surplus[LUXURY] = p->surplus;
-    }
-
-    q = get_city_status(result->production[LUXURY],
-                       base_combination->worker);
-    if (!q->is_valid) {
-      got_all = FALSE;
-    } else {
-      result->disorder = q->disorder;
-      result->happy = q->happy;
-    }
-  }
-
-  if (got_all) {
-    /*
-     * All secondary stats and the city status have been filled from
-     * cache2.
-     */
-
-    stats.cache2.hits++;
-    memcpy(slot, result, sizeof(struct cm_result));
-    slot->found_a_valid = TRUE;
-    return;
-  }
-
-  stats.cache2.misses++;
+#endif
 
   /*
    * Result can't be constructed from caches. Do the slow
@@ -1061,86 +925,6 @@
 }
 
 /****************************************************************************
- Expand the secondary_stats and city_status fields of cache2 if this
- is necessary. For this the function tries to estimate the upper limit
- of trade and luxury. It will also invalidate cache2.
-*****************************************************************************/
-static void ensure_invalid_cache2(struct city *pcity, int total_tile_trade)
-{
-  bool change_size = FALSE;
-  int backup,i, luxury, total_trade = total_tile_trade;
-
-  /* Hack since trade_between_cities accesses pcity->tile_trade */
-  backup = pcity->tile_trade;
-  pcity->tile_trade = total_tile_trade;
-  for (i = 0; i < NUM_TRADEROUTES; i++) {
-    struct city *pc2 = find_city_by_id(pcity->trade[i]);
-
-    total_trade += trade_between_cities(pcity, pc2);
-  }
-  pcity->tile_trade = backup;
-
-  /*
-   * Estimate an upper limit for the luxury. We assume that the player
-   * has set the luxury rate to 100%. There are two extremal cases: all
-   * citizen are entertainers (yielding a luxury of "(pcity->size * 2
-   * * get_city_tax_bonus(pcity))/100" = A) or all citizen are
-   * working on tiles and the resulting trade is converted to luxury
-   * (yielding a luxury of "(total_trade * get_city_tax_bonus(pcity))
-   * / 100" = B) . We can't use MAX(A, B) since there may be cases in
-   * between them which are better than these two exremal cases. So we
-   * use A+B as upper limit.
-   */
-  luxury =
-      ((pcity->size * 2 + total_trade) * get_city_tax_bonus(pcity)) / 100;
-
-  /* +1 because we want to index from 0 to pcity->size inclusive */
-  if (pcity->size + 1 > cache2.allocated_size) {
-    cache2.allocated_size = pcity->size + 1;
-    change_size = TRUE;
-  }
-
-  if (total_trade + 1 > cache2.allocated_trade) {
-    cache2.allocated_trade = total_trade + 1;
-    change_size = TRUE;
-  }
-
-  if (luxury + 1 > cache2.allocated_luxury) {
-    cache2.allocated_luxury = luxury + 1;
-    change_size = TRUE;
-  }
-
-  if (change_size) {
-    freelog(LOG_DEBUG,
-           "CM: expanding cache2 to size=%d, trade=%d, luxury=%d",
-           cache2.allocated_size, cache2.allocated_trade,
-           cache2.allocated_luxury);
-    if (cache2.secondary_stats) {
-      free(cache2.secondary_stats);
-      cache2.secondary_stats = NULL;
-    }
-    cache2.secondary_stats =
-       fc_malloc(cache2.allocated_trade * cache2.allocated_size *
-                 NUM_SPECIALISTS_ROLES * sizeof(struct secondary_stat));
-
-    if (cache2.city_status) {
-      free(cache2.city_status);
-      cache2.city_status = NULL;
-    }
-    cache2.city_status =
-       fc_malloc(cache2.allocated_luxury * cache2.allocated_size *
-                 sizeof(struct city_status));
-  }
-
-  /* Make cache2 invalid */
-  memset(cache2.secondary_stats, 0,
-        cache2.allocated_trade * cache2.allocated_size *
-        NUM_SPECIALISTS_ROLES * sizeof(struct secondary_stat));
-  memset(cache2.city_status, 0,
-        cache2.allocated_luxury * cache2.allocated_size *
-        sizeof(struct city_status));
-}
-/****************************************************************************
  Setup. Adds the root combination (the combination which doesn't use
  any worker but the production of the city center). Incrementaly calls
  expand_cache3.
@@ -1219,8 +1003,6 @@
   for (i = 1; i <= MIN(cache3.fields_available_total, pcity->size); i++) {
     expand_cache3(pcity, i, &tile_stats);
   }
-
-  ensure_invalid_cache2(pcity, total_tile_trade);
 }
 
 /****************************************************************************
@@ -1234,28 +1016,35 @@
                                             int *best_minor_fitness)
 {
   int worker = base_combination->worker;
-  int specialists = pcity->size - worker;
-  int scientists, taxmen;
+  int num_specialists = pcity->size - worker;
+  int index;
 
   if (!base_combination->cache1) {
 
     /* setup cache1 */
 
-    int i, items;
+    int i, items = 1, sp;
 
-    if (city_can_use_specialist(pcity, SP_SCIENTIST)) {
-      base_combination->max_scientists = specialists;
-    } else {
-      base_combination->max_scientists = 0;
-    }
+    for (sp = 0; sp < SP_COUNT; sp++) {
+      int max;
 
-    if (city_can_use_specialist(pcity, SP_TAXMAN)) {
-      base_combination->max_taxmen = specialists;
-    } else {
-      base_combination->max_taxmen = 0;
+      if (sp == best_entertainer) {
+       base_combination->max_specialists[sp] = num_specialists;
+       assert(city_can_use_specialist(pcity, sp));
+       continue;
+      }
+
+      if (city_can_use_specialist(pcity, sp)) {
+       max = num_specialists;
+      } else {
+       max = 0;
+      }
+
+      base_combination->max_specialists[sp] = max;
+      items *= (max + 1);
     }
-    items = (base_combination->max_scientists + 1) *
-       (base_combination->max_taxmen + 1);
+
+    base_combination->cache1_size = items;
     base_combination->cache1 =
        fc_malloc(sizeof(struct cm_result) * items);
     for (i = 0; i < items; i++) {
@@ -1265,54 +1054,75 @@
 
   best_result->found_a_valid = FALSE;
 
-  for (scientists = 0;
-       scientists <= base_combination->max_scientists; scientists++) {
-    for (taxmen = 0;
-        taxmen <= base_combination->max_taxmen - scientists; taxmen++) {
-      int major_fitness, minor_fitness;
-      struct cm_result result;
+  for (index = 0; index < base_combination->cache1_size; index++) {
+    int specialists[SP_COUNT], sp, count = 0, myindex = index;
+    int major_fitness, minor_fitness;
+    struct cm_result result;
+
+    for (sp = SP_COUNT - 1; sp >= 0; sp--) {
+      /* This loop is the inverse of combination_spec_index(). */
+      int max = base_combination->max_specialists[sp] + 1;
 
-      freelog(FIND_BEST_SPECIALIST_ARRANGEMENT_LOG_LEVEL,
-             "  optimize_people: using (W/E/S/T) %d/%d/%d/%d",
-             worker, pcity->size - (worker + scientists + taxmen),
-             scientists, taxmen);
+      if (sp == best_entertainer) {
+       continue;
+      }
+      if (max == 0) {
+       specialists[sp] = 0;
+       continue;
+      }
 
-      fill_out_result(pcity, &result, base_combination, scientists,
-                     taxmen);
+      specialists[sp] = myindex % max;
+      myindex /= max;
 
-      freelog(FIND_BEST_SPECIALIST_ARRANGEMENT_LOG_LEVEL,
-             "  optimize_people: got extra=(tax=%d, luxury=%d, "
-             "science=%d)",
-             result.surplus[GOLD] - parameter->minimal_surplus[GOLD],
-             result.surplus[LUXURY] -
-             parameter->minimal_surplus[LUXURY],
-             result.surplus[SCIENCE] -
-             parameter->minimal_surplus[SCIENCE]);
+      count += specialists[sp];
+    }
+    if (count > num_specialists) {
+      /* FIXME: cache1 is much bigger than it needs to be! */
+      continue;
+    }
+    specialists[best_entertainer] = num_specialists - count;
 
-      if (!is_valid_result(parameter, &result)) {
-       freelog(FIND_BEST_SPECIALIST_ARRANGEMENT_LOG_LEVEL,
-               "  optimize_people: doesn't have enough surplus or disorder");
-       continue;
-      }
+#if 0
+    freelog(FIND_BEST_SPECIALIST_ARRANGEMENT_LOG_LEVEL,
+           "  optimize_people: using (W/E/S/T) %d/%d/%d/%d",
+           worker, pcity->size - (worker + scientists + taxmen),
+           scientists, taxmen);
+#endif
+
+    fill_out_result(pcity, &result, base_combination, specialists);
 
-      calc_fitness(pcity, parameter, &result, &major_fitness,
-                  &minor_fitness);
+    freelog(FIND_BEST_SPECIALIST_ARRANGEMENT_LOG_LEVEL,
+           "  optimize_people: got extra=(tax=%d, luxury=%d, "
+           "science=%d)",
+           result.surplus[GOLD] - parameter->minimal_surplus[GOLD],
+           result.surplus[LUXURY] -
+           parameter->minimal_surplus[LUXURY],
+           result.surplus[SCIENCE] -
+           parameter->minimal_surplus[SCIENCE]);
 
+    if (!is_valid_result(parameter, &result)) {
       freelog(FIND_BEST_SPECIALIST_ARRANGEMENT_LOG_LEVEL,
-             "  optimize_people: fitness=(%d,%d)", major_fitness,
-             minor_fitness);
+             "  optimize_people: doesn't have enough surplus or disorder");
+      continue;
+    }
 
-      result.found_a_valid = TRUE;
-      if (!best_result->found_a_valid
-         || ((major_fitness > *best_major_fitness)
-             || (major_fitness == *best_major_fitness
-                 && minor_fitness > *best_minor_fitness))) {
-       memcpy(best_result, &result, sizeof(struct cm_result));
-       *best_major_fitness = major_fitness;
-       *best_minor_fitness = minor_fitness;
-      }
-    }                          /* for taxmen */
-  }                            /* for scientists */
+    calc_fitness(pcity, parameter, &result, &major_fitness,
+                &minor_fitness);
+
+    freelog(FIND_BEST_SPECIALIST_ARRANGEMENT_LOG_LEVEL,
+           "  optimize_people: fitness=(%d,%d)", major_fitness,
+           minor_fitness);
+
+    result.found_a_valid = TRUE;
+    if (!best_result->found_a_valid
+       || ((major_fitness > *best_major_fitness)
+           || (major_fitness == *best_major_fitness
+               && minor_fitness > *best_minor_fitness))) {
+      memcpy(best_result, &result, sizeof(struct cm_result));
+      *best_major_fitness = major_fitness;
+      *best_minor_fitness = minor_fitness;
+    }
+  }
 }
 
 /****************************************************************************
@@ -1344,6 +1154,7 @@
          &cache3.results[fields_used].combinations[i];
       int stat, major_fitness, minor_fitness;
       struct cm_result result;
+      int specialists[SP_COUNT], sp;
 
       if (!current->is_valid) {
        continue;
@@ -1352,7 +1163,13 @@
       freelog(OPTIMIZE_FINAL_LOG_LEVEL2, "  trying combination %d", i);
 
       /* this will set the all_entertainer result */
-      fill_out_result(pcity, &result, current, 0, 0);
+      //      memset(specialists, 0, sizeof(specialists));
+      for (sp = 0; sp < SP_COUNT; sp++) {
+       specialists[sp] = 0;
+      }
+      /* FIXME: although specialists[i] == 0 max_specialists[i] has not
+       * been filled out.  Is this a bug?  At the least it's risky... */
+      fill_out_result(pcity, &result, current, specialists);
 
       /*
        * Check. The actual production can be bigger because of city
@@ -1451,15 +1268,6 @@
   free_timer(stats.wall_timer);
   stats.wall_timer = NULL;
 
-  free(cache2.secondary_stats);
-  cache2.secondary_stats = NULL;
-
-  free(cache2.city_status);
-  cache2.city_status = NULL;
-
-  cache2.allocated_size = 0;
-  cache2.allocated_trade = 0;
-  cache2.allocated_luxury = 0;
   clear_cache();
 }
 
Index: common/aicore/cm.h
===================================================================
RCS file: /home/freeciv/CVS/freeciv/common/aicore/cm.h,v
retrieving revision 1.6
diff -u -r1.6 cm.h
--- common/aicore/cm.h  16 Jun 2004 03:01:02 -0000      1.6
+++ common/aicore/cm.h  16 Jun 2004 03:26:20 -0000
@@ -57,7 +57,7 @@
   int surplus[NUM_STATS];
 
   bool worker_positions_used[CITY_MAP_SIZE][CITY_MAP_SIZE];
-  int specialists[SP_COUNT];
+  int specialists[MAX_NUM_SPECIALISTS];
 };
 
 void cm_init(void);
Index: data/default/cities.ruleset
===================================================================
RCS file: /home/freeciv/CVS/freeciv/data/default/cities.ruleset,v
retrieving revision 1.11
diff -u -r1.11 cities.ruleset
--- data/default/cities.ruleset 9 Jun 2004 04:39:13 -0000       1.11
+++ data/default/cities.ruleset 16 Jun 2004 03:26:20 -0000
@@ -21,14 +21,13 @@
 ; the city is of a certain size.
 [specialist]
 
-; Changing the order or names of specialists will break things
 types = "elvis", "scientist", "taxman"
 elvis_min_size = 0
-elvis_base_bonus = 2
+elvis_bonus_lux = 2
 scientist_min_size = 5
-scientist_base_bonus = 3
+scientist_bonus_sci = 3
 taxman_min_size = 5
-taxman_base_bonus = 3
+taxman_bonus_tax = 3
 
 changable_tax = 1
 ;forced_science = 0
Index: data/misc/small.spec
===================================================================
RCS file: /home/freeciv/CVS/freeciv/data/misc/small.spec,v
retrieving revision 1.6
diff -u -r1.6 small.spec
--- data/misc/small.spec        11 Jun 2004 16:59:18 -0000      1.6
+++ data/misc/small.spec        16 Jun 2004 03:26:21 -0000
@@ -76,9 +76,9 @@
 
 ; Citizen icons:
 
-  0, 23, "citizen.entertainer"
+  0, 23, "citizen.elvis"
   0, 24, "citizen.scientist"
-  0, 25, "citizen.tax_collector"
+  0, 25, "citizen.taxman"
   0, 26, "citizen.content_0"
   0, 27, "citizen.content_1"
   0, 28, "citizen.happy_0"
Index: server/cityhand.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/server/cityhand.c,v
retrieving revision 1.132
diff -u -r1.132 cityhand.c
--- server/cityhand.c   2 Jun 2004 22:54:15 -0000       1.132
+++ server/cityhand.c   16 Jun 2004 03:26:21 -0000
@@ -63,8 +63,7 @@
 ...
 **************************************************************************/
 void handle_city_change_specialist(struct player *pplayer, int city_id,
-                                  enum specialist_type from,
-                                  enum specialist_type to)
+                                  int from, int to)
 {
   struct city *pcity = player_find_city_by_id(pplayer, city_id);
 
@@ -106,7 +105,7 @@
   }
   if (is_worker_here(pcity, worker_x, worker_y)) {
     server_remove_worker_city(pcity, worker_x, worker_y);
-    pcity->specialists[SP_ELVIS]++;
+    pcity->specialists[DEFAULT_SPECIALIST]++;
     city_refresh(pcity);
     sync_cities();
   } else {
Index: server/citytools.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/server/citytools.c,v
retrieving revision 1.261
diff -u -r1.261 citytools.c
--- server/citytools.c  14 Jun 2004 23:43:08 -0000      1.261
+++ server/citytools.c  16 Jun 2004 03:26:21 -0000
@@ -1687,9 +1687,9 @@
     packet->ppl_unhappy[i]=pcity->ppl_unhappy[i];
     packet->ppl_angry[i]=pcity->ppl_angry[i];
   }
-  packet->specialists[SP_ELVIS] = pcity->specialists[SP_ELVIS];
-  packet->specialists[SP_SCIENTIST] = pcity->specialists[SP_SCIENTIST];
-  packet->specialists[SP_TAXMAN] = pcity->specialists[SP_TAXMAN];
+  for (i = 0; i < SP_COUNT; i++) {
+    packet->specialists[i] = pcity->specialists[i];
+  }
   for (i = 0; i < NUM_TRADEROUTES; i++) {
     packet->trade[i]=pcity->trade[i];
     packet->trade_value[i]=pcity->trade_value[i];
@@ -2148,7 +2148,7 @@
   case C_TILE_WORKER:
     if (!is_available) {
       server_set_tile_city(pcity, city_x, city_y, C_TILE_UNAVAILABLE);
-      pcity->specialists[SP_ELVIS]++; /* keep city sanity */
+      pcity->specialists[DEFAULT_SPECIALIST]++; /* keep city sanity */
       auto_arrange_workers(pcity); /* will place the displaced */
       city_refresh(pcity);
       send_city_info(NULL, pcity);
Index: server/cityturn.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/server/cityturn.c,v
retrieving revision 1.249
diff -u -r1.249 cityturn.c
--- server/cityturn.c   29 May 2004 20:34:31 -0000      1.249
+++ server/cityturn.c   16 Jun 2004 03:26:21 -0000
@@ -376,6 +376,8 @@
 **************************************************************************/
 bool city_reduce_size(struct city *pcity, int pop_loss)
 {
+  int i;
+
   if (pop_loss == 0) {
     return TRUE;
   }
@@ -394,16 +396,15 @@
 
   /* First try to kill off the specialists */
   while (pop_loss > 0 && city_specialists(pcity) > 0) {
-    if (pcity->specialists[SP_TAXMAN] > 0) {
-      pcity->specialists[SP_TAXMAN]--;
-    } else if (pcity->specialists[SP_SCIENTIST] > 0) {
-      pcity->specialists[SP_SCIENTIST]--;
-    } else {
-      assert(pcity->specialists[SP_ELVIS] > 0);
-      pcity->specialists[SP_ELVIS]--; 
+    for (i = SP_COUNT - 1; i >= 0; i--) {
+      if (pcity->specialists[i] > 0) {
+       pcity->specialists[i]--;
+       pop_loss--;
+       break;
+      }
     }
-    pop_loss--;
   }
+  assert(pop_loss == 0 || city_specialists(pcity) == 0);
 
   /* we consumed all the pop_loss in specialists */
   if (pop_loss == 0) {
@@ -437,6 +438,7 @@
   bool has_granary = city_got_effect(pcity, B_GRANARY);
   bool rapture_grow = city_rapture_grow(pcity); /* check before size increase! 
*/
   int new_food;
+  int best_sci = best_science_specialist(), best_tax = best_tax_specialist();
 
   if (!city_got_building(pcity, B_AQUEDUCT)
       && pcity->size>=game.aqueduct_size) {/* need aqueduct */
@@ -497,18 +499,17 @@
       have_square = TRUE;
     }
   } city_map_iterate_end;
-  if (((pcity->food_surplus >= 2) || !have_square)  &&  pcity->size >= 5  &&
-      (is_city_option_set(pcity, CITYO_NEW_EINSTEIN) || 
-       is_city_option_set(pcity, CITYO_NEW_TAXMAN))) {
-
-    if (is_city_option_set(pcity, CITYO_NEW_EINSTEIN)) {
-      pcity->specialists[SP_SCIENTIST]++;
-    } else { /* now pcity->city_options & (1<<CITYO_NEW_TAXMAN) is true */
-      pcity->specialists[SP_TAXMAN]++;
-    }
 
+  if ((pcity->food_surplus >= 2 || !have_square)
+      && is_city_option_set(pcity, CITYO_NEW_EINSTEIN)
+      && pcity->size >= game.rgame.specialists[best_sci].min_size) {
+    pcity->specialists[best_sci]++;
+  } else if ((pcity->food_surplus >= 2 || !have_square)
+            && is_city_option_set(pcity, CITYO_NEW_TAXMAN)
+            && pcity->size >= game.rgame.specialists[best_tax].min_size) {
+    pcity->specialists[best_tax]++;
   } else {
-    pcity->specialists[SP_TAXMAN]++; /* or else city is !sane */
+    pcity->specialists[DEFAULT_SPECIALIST]++; /* or else city is !sane */
     auto_arrange_workers(pcity);
   }
 
Index: server/report.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/server/report.c,v
retrieving revision 1.50
diff -u -r1.50 report.c
--- server/report.c     11 May 2004 17:59:34 -0000      1.50
+++ server/report.c     16 Jun 2004 03:26:22 -0000
@@ -496,19 +496,15 @@
   return pplayer->score.unhappy;
 }
 
-static int get_taxmen(struct player *pplayer)
+static int get_specialists(struct player *pplayer)
 {
-  return pplayer->score.taxmen;
-}
+  int i, count = 0;
 
-static int get_scientists(struct player *pplayer)
-{
-  return pplayer->score.scientists;
-}
+  for (i = 0; i < SP_COUNT; i++) {
+    count += pplayer->score.specialists[i];
+  }
 
-static int get_elvis(struct player *pplayer)
-{
-  return pplayer->score.elvis;
+  return count;
 }
 
 static int get_gov(struct player *pplayer)
@@ -902,9 +898,7 @@
     {"happypop",        get_happypop},
     {"contentpop",      get_contentpop},
     {"unhappypop",      get_unhappypop},
-    {"taxmen",          get_taxmen},
-    {"scientists",      get_scientists},
-    {"elvis",           get_elvis},
+    {"specialists",     get_specialists},
     {"gov",             get_gov},
     {"corruption",      get_corruption} /* new 1.11.5 tags end here */
   };
Index: server/ruleset.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/server/ruleset.c,v
retrieving revision 1.175
diff -u -r1.175 ruleset.c
--- server/ruleset.c    9 Jun 2004 04:39:13 -0000       1.175
+++ server/ruleset.c    16 Jun 2004 03:26:22 -0000
@@ -2496,11 +2496,6 @@
 
   /* Specialist options */
   specialist_names = secfile_lookup_str_vec(file, &nval, "specialist.types");
-  if (nval != SP_COUNT) {
-    freelog(LOG_FATAL, "There must be exactly %d types of specialist.",
-           SP_COUNT);
-    exit(EXIT_FAILURE);
-  }
 
   for (i = 0; i < nval; i++) {
     const char *name = specialist_names[i];
@@ -2508,10 +2503,20 @@
     sz_strlcpy(game.rgame.specialists[i].name, name);
     game.rgame.specialists[i].min_size
       = secfile_lookup_int(file, "specialist.%s_min_size", name);
-    game.rgame.specialists[i].bonus
-      = secfile_lookup_int(file, "specialist.%s_base_bonus", name);
-    
+    game.rgame.specialists[i].bonus_sci
+      = secfile_lookup_int_default(file, 0, "specialist.%s_bonus_sci", name);
+    game.rgame.specialists[i].bonus_tax
+      = secfile_lookup_int_default(file, 0, "specialist.%s_bonus_tax", name);
+    game.rgame.specialists[i].bonus_lux
+      = secfile_lookup_int_default(file, 0, "specialist.%s_bonus_lux", name);
+
+    if (game.rgame.specialists[i].min_size == 0
+       && game.rgame.default_specialist == -1) {
+      game.rgame.default_specialist = i;
+    }
   }
+  assert(game.rgame.default_specialist != -1);
+  game.rgame.num_specialist_types = nval;
 
   game.rgame.changable_tax = 
     secfile_lookup_bool_default(file, TRUE, "specialist.changable_tax");
@@ -2526,11 +2531,6 @@
     freelog(LOG_FATAL, "Forced taxes do not add up in ruleset!");
     exit(EXIT_FAILURE);
   }
-  if (game.rgame.specialists[SP_ELVIS].min_size > 0) {
-    freelog(LOG_FATAL, "Elvises must be available without a "
-           "city size restriction!");
-    exit(EXIT_FAILURE);
-  }
 
   /* City Parameters */
 
@@ -3100,9 +3100,14 @@
   int i;
   struct packet_ruleset_game misc_p;
 
+  misc_p.num_specialist_types = game.rgame.num_specialist_types;
+  misc_p.default_specialist = game.rgame.default_specialist;
   for (i = 0; i < SP_COUNT; i++) {
+    sz_strlcpy(misc_p.specialist_name[i], game.rgame.specialists[i].name);
     misc_p.specialist_min_size[i] = game.rgame.specialists[i].min_size;
-    misc_p.specialist_bonus[i] = game.rgame.specialists[i].bonus;
+    misc_p.specialist_bonus_sci[i] = game.rgame.specialists[i].bonus_sci;
+    misc_p.specialist_bonus_tax[i] = game.rgame.specialists[i].bonus_tax;
+    misc_p.specialist_bonus_lux[i] = game.rgame.specialists[i].bonus_lux;
   }
   misc_p.changable_tax = game.rgame.changable_tax;
   misc_p.forced_science = game.rgame.forced_science;
Index: server/sanitycheck.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/server/sanitycheck.c,v
retrieving revision 1.42
diff -u -r1.42 sanitycheck.c
--- server/sanitycheck.c        28 May 2004 06:47:10 -0000      1.42
+++ server/sanitycheck.c        16 Jun 2004 03:26:22 -0000
@@ -227,9 +227,12 @@
     }
   } city_map_iterate_end;
   if (workers + city_specialists(pcity) != pcity->size + 1) {
+    die("%s is illegal", pcity->name);
+#if 0
     die("%s is illegal (size%d w%d e%d t%d s%d) in %s line %d",
         pcity->name, pcity->size, workers, pcity->specialists[SP_ELVIS],
         pcity->specialists[SP_TAXMAN], pcity->specialists[SP_SCIENTIST], file, 
line);
+#endif
   }
 }
 
Index: server/savegame.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/server/savegame.c,v
retrieving revision 1.159
diff -u -r1.159 savegame.c
--- server/savegame.c   12 Jun 2004 17:42:28 -0000      1.159
+++ server/savegame.c   16 Jun 2004 03:26:23 -0000
@@ -1058,7 +1058,7 @@
            /* oops, inconsistent savegame; minimal fix: */
            freelog(LOG_VERBOSE, "Inconsistent worked for %s (%d,%d), "
                    "converting to elvis", pcity->name, x, y);
-           pcity->specialists[SP_ELVIS]++;
+           pcity->specialists[DEFAULT_SPECIALIST]++;
            set_worker_city(pcity, x, y, C_TILE_UNAVAILABLE);
          } else {
            set_worker_city(pcity, x, y, C_TILE_WORKER);
@@ -1964,7 +1964,7 @@
        int map_x, map_y;
        bool is_real;
 
-       pcity->specialists[SP_ELVIS]++;
+       pcity->specialists[DEFAULT_SPECIALIST]++;
        set_worker_city(pcity, x, y, C_TILE_UNAVAILABLE);
        freelog(LOG_DEBUG, "Worked tile was unavailable!");
 
Index: server/score.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/server/score.c,v
retrieving revision 1.5
diff -u -r1.5 score.c
--- server/score.c      27 May 2004 22:14:19 -0000      1.5
+++ server/score.c      16 Jun 2004 03:26:23 -0000
@@ -376,16 +376,16 @@
 int civ_score(struct player *pplayer)
 {
   struct city *pcity;
-  int landarea, settledarea;
+  int landarea, settledarea, sp;
   static struct claim_map cmap = { NULL, NULL, NULL,NULL };
 
   pplayer->score.happy = 0;
   pplayer->score.content = 0;
   pplayer->score.unhappy = 0;
   pplayer->score.angry = 0;
-  pplayer->score.taxmen = 0;
-  pplayer->score.scientists = 0;
-  pplayer->score.elvis = 0;
+  for (sp = 0; sp < SP_COUNT; sp++) {
+    pplayer->score.specialists[sp] = 0;
+  }
   pplayer->score.wonders = 0;
   pplayer->score.techs = 0;
   pplayer->score.techout = 0;
@@ -408,13 +408,15 @@
   }
 
   city_list_iterate(pplayer->cities, pcity) {
+    int sp;
+
     pplayer->score.happy += pcity->ppl_happy[4];
     pplayer->score.content += pcity->ppl_content[4];
     pplayer->score.unhappy += pcity->ppl_unhappy[4];
     pplayer->score.angry += pcity->ppl_angry[4];
-    pplayer->score.taxmen += pcity->specialists[SP_TAXMAN];
-    pplayer->score.scientists += pcity->specialists[SP_SCIENTIST];
-    pplayer->score.elvis += pcity->specialists[SP_ELVIS];
+    for (sp = 0; sp < SP_COUNT; sp++) {
+      pplayer->score.specialists[sp] += pcity->specialists[sp];
+    }
     pplayer->score.population += city_population(pcity);
     pplayer->score.cities++;
     pplayer->score.pollution += pcity->pollution;
Index: server/unithand.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/server/unithand.c,v
retrieving revision 1.299
diff -u -r1.299 unithand.c
--- server/unithand.c   27 May 2004 22:14:19 -0000      1.299
+++ server/unithand.c   16 Jun 2004 03:26:23 -0000
@@ -479,7 +479,7 @@
   assert(unit_pop_value(punit->type) > 0);
   pcity->size += unit_pop_value(punit->type);
   /* Make the new people something, otherwise city fails the checks */
-  pcity->specialists[SP_TAXMAN] += unit_pop_value(punit->type);
+  pcity->specialists[DEFAULT_SPECIALIST] += unit_pop_value(punit->type);
   auto_arrange_workers(pcity);
   wipe_unit(punit);
   send_city_info(NULL, pcity);

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