common/diptreaty.h

   1 /**********************************************************************
   2  Freeciv - Copyright (C) 1996 - A Kjeldberg, L Gregersen, P Unold
   3    This program is free software; you can redistribute it and/or modify
   4    it under the terms of the GNU General Public License as published by
   5    the Free Software Foundation; either version 2, or (at your option)
   6    any later version.
   7
   8    This program is distributed in the hope that it will be useful,
   9    but WITHOUT ANY WARRANTY; without even the implied warranty of
  10    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11    GNU General Public License for more details.
  12 ***********************************************************************/
  13 #ifndef FC__DIPTREATY_H
  14 #define FC__DIPTREATY_H
  15
  16 #ifdef __cplusplus
  17 extern "C" {
  18 #endif /* __cplusplus */
  19
  20 #include "support.h"            /* bool type */
  21
  22 /* Used in the network protocol */
  23 #define SPECENUM_NAME clause_type
  24 #define SPECENUM_VALUE0 CLAUSE_ADVANCE
  25 #define SPECENUM_VALUE0NAME "Advance"
  26 #define SPECENUM_VALUE1 CLAUSE_GOLD
  27 #define SPECENUM_VALUE1NAME "Gold"
  28 #define SPECENUM_VALUE2 CLAUSE_MAP
  29 #define SPECENUM_VALUE2NAME "Map"
  30 #define SPECENUM_VALUE3 CLAUSE_SEAMAP
  31 #define SPECENUM_VALUE3NAME "Seamap"
  32 #define SPECENUM_VALUE4 CLAUSE_CITY
  33 #define SPECENUM_VALUE4NAME "City"
  34 #define SPECENUM_VALUE5 CLAUSE_CEASEFIRE
  35 #define SPECENUM_VALUE5NAME "Ceasefire"
  36 #define SPECENUM_VALUE6 CLAUSE_PEACE
  37 #define SPECENUM_VALUE6NAME "Peace"
  38 #define SPECENUM_VALUE7 CLAUSE_ALLIANCE
  39 #define SPECENUM_VALUE7NAME "Alliance"
  40 #define SPECENUM_VALUE8 CLAUSE_VISION
  41 #define SPECENUM_VALUE8NAME "Vision"
  42 #define SPECENUM_VALUE9 CLAUSE_EMBASSY
  43 #define SPECENUM_VALUE9NAME "Embassy"
  44 #include "specenum_gen.h"
  45
  46 #define is_pact_clause(x)                                                   \
  47   ((x == CLAUSE_CEASEFIRE) || (x == CLAUSE_PEACE) || (x == CLAUSE_ALLIANCE))
  48
  49 /* For when we need to iterate over treaties */
  50 struct Clause;
  51 #define SPECLIST_TAG clause
  52 #define SPECLIST_TYPE struct Clause
  53 #include "speclist.h"
  54
  55 #define clause_list_iterate(clauselist, pclause) \
  56     TYPED_LIST_ITERATE(struct Clause, clauselist, pclause)
  57 #define clause_list_iterate_end  LIST_ITERATE_END
  58
  59 struct Clause {
  60   enum clause_type type;
  61   struct player *from;
  62   int value;
  63 };
  64
  65 struct Treaty {
  66   struct player *plr0, *plr1;
  67   bool accept0, accept1;
  68   struct clause_list *clauses;
  69 };
  70
  71 bool diplomacy_possible(const struct player *pplayer,
  72                         const struct player *aplayer);
  73 bool could_meet_with_player(const struct player *pplayer,
  74                             const struct player *aplayer);
  75 bool could_intel_with_player(const struct player *pplayer,
  76                              const struct player *aplayer);
  77
  78 void init_treaty(struct Treaty *ptreaty,
  79                  struct player *plr0, struct player *plr1);
  80 bool add_clause(struct Treaty *ptreaty, struct player *pfrom,
  81                enum clause_type type, int val);
  82 bool remove_clause(struct Treaty *ptreaty, struct player *pfrom,
  83                   enum clause_type type, int val);
  84 void clear_treaty(struct Treaty *ptreaty);
  85
  86 #ifdef __cplusplus
  87 }
  88 #endif /* __cplusplus */
  89
  90 #endif /* FC__DIPTREATY_H */