common/effects.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__EFFECTS_H
  14 #define FC__EFFECTS_H
  15
  16 #ifdef __cplusplus
  17 extern "C" {
  18 #endif /* __cplusplus */
  19
  20 /* utility */
  21 #include "support.h"            /* bool type */
  22
  23 /* common */
  24 #include "connection.h"
  25 #include "fc_types.h"
  26 #include "multipliers.h"
  27
  28 #include "requirements.h"
  29
  30 /* Type of effects. Add new values via SPECENUM_VALUE%d and
  31  * SPECENUM_VALUE%dNAME at the end of the list.
  32  * Used in the network protocol.
  33  */
  34 #define SPECENUM_NAME effect_type
  35 #define SPECENUM_VALUE0 EFT_TECH_PARASITE
  36 #define SPECENUM_VALUE0NAME "Tech_Parasite"
  37 #define SPECENUM_VALUE1 EFT_AIRLIFT
  38 #define SPECENUM_VALUE1NAME "Airlift"
  39 #define SPECENUM_VALUE2 EFT_ANY_GOVERNMENT
  40 #define SPECENUM_VALUE2NAME "Any_Government"
  41 #define SPECENUM_VALUE3 EFT_CAPITAL_CITY
  42 #define SPECENUM_VALUE3NAME "Capital_City"
  43 #define SPECENUM_VALUE4 EFT_ENABLE_NUKE
  44 #define SPECENUM_VALUE4NAME "Enable_Nuke"
  45 #define SPECENUM_VALUE5 EFT_ENABLE_SPACE
  46 #define SPECENUM_VALUE5NAME "Enable_Space"
  47 #define SPECENUM_VALUE6 EFT_SPECIALIST_OUTPUT
  48 #define SPECENUM_VALUE6NAME "Specialist_Output"
  49 #define SPECENUM_VALUE7 EFT_OUTPUT_BONUS
  50 #define SPECENUM_VALUE7NAME "Output_Bonus"
  51 #define SPECENUM_VALUE8 EFT_OUTPUT_BONUS_2
  52 #define SPECENUM_VALUE8NAME "Output_Bonus_2"
  53 /* add to each worked tile */
  54 #define SPECENUM_VALUE9 EFT_OUTPUT_ADD_TILE
  55 #define SPECENUM_VALUE9NAME "Output_Add_Tile"
  56 /* add to each worked tile that already has output */
  57 #define SPECENUM_VALUE10 EFT_OUTPUT_INC_TILE
  58 #define SPECENUM_VALUE10NAME "Output_Inc_Tile"
  59 /* increase tile output by given % */
  60 #define SPECENUM_VALUE11 EFT_OUTPUT_PER_TILE
  61 #define SPECENUM_VALUE11NAME "Output_Per_Tile"
  62 #define SPECENUM_VALUE12 EFT_OUTPUT_WASTE_PCT
  63 #define SPECENUM_VALUE12NAME "Output_Waste_Pct"
  64 #define SPECENUM_VALUE13 EFT_FORCE_CONTENT
  65 #define SPECENUM_VALUE13NAME "Force_Content"
  66 /* TODO: EFT_FORCE_CONTENT_PCT */
  67 #define SPECENUM_VALUE14 EFT_GIVE_IMM_TECH
  68 #define SPECENUM_VALUE14NAME "Give_Imm_Tech"
  69 #define SPECENUM_VALUE15 EFT_GROWTH_FOOD
  70 #define SPECENUM_VALUE15NAME "Growth_Food"
  71 /* reduced illness due to buildings ... */
  72 #define SPECENUM_VALUE16 EFT_HEALTH_PCT
  73 #define SPECENUM_VALUE16NAME "Health_Pct"
  74 #define SPECENUM_VALUE17 EFT_HAVE_EMBASSIES
  75 #define SPECENUM_VALUE17NAME "Have_Embassies"
  76 #define SPECENUM_VALUE18 EFT_MAKE_CONTENT
  77 #define SPECENUM_VALUE18NAME "Make_Content"
  78 #define SPECENUM_VALUE19 EFT_MAKE_CONTENT_MIL
  79 #define SPECENUM_VALUE19NAME "Make_Content_Mil"
  80 #define SPECENUM_VALUE20 EFT_MAKE_CONTENT_MIL_PER
  81 #define SPECENUM_VALUE20NAME "Make_Content_Mil_Per"
  82 /* TODO: EFT_MAKE_CONTENT_PCT */
  83 #define SPECENUM_VALUE21 EFT_MAKE_HAPPY
  84 #define SPECENUM_VALUE21NAME "Make_Happy"
  85 #define SPECENUM_VALUE22 EFT_NO_ANARCHY
  86 #define SPECENUM_VALUE22NAME "No_Anarchy"
  87 #define SPECENUM_VALUE23 EFT_NUKE_PROOF
  88 #define SPECENUM_VALUE23NAME "Nuke_Proof"
  89 /* TODO: EFT_POLLU_ADJ */
  90 /* TODO: EFT_POLLU_PCT */
  91 /* TODO: EFT_POLLU_POP_ADJ */
  92 #define SPECENUM_VALUE24 EFT_POLLU_POP_PCT
  93 #define SPECENUM_VALUE24NAME "Pollu_Pop_Pct"
  94 #define SPECENUM_VALUE25 EFT_POLLU_POP_PCT_2
  95 #define SPECENUM_VALUE25NAME "Pollu_Pop_Pct_2"
  96 /* TODO: EFT_POLLU_PROD_ADJ */
  97 #define SPECENUM_VALUE26 EFT_POLLU_PROD_PCT
  98 #define SPECENUM_VALUE26NAME "Pollu_Prod_Pct"
  99 /* TODO: EFT_PROD_PCT */
 100 #define SPECENUM_VALUE27 EFT_REVEAL_CITIES
 101 #define SPECENUM_VALUE27NAME "Reveal_Cities"
 102 #define SPECENUM_VALUE28 EFT_REVEAL_MAP
 103 #define SPECENUM_VALUE28NAME "Reveal_Map"
 104 /* TODO: EFT_INCITE_DIST_ADJ */
 105 #define SPECENUM_VALUE29 EFT_INCITE_COST_PCT
 106 #define SPECENUM_VALUE29NAME "Incite_Cost_Pct"
 107 #define SPECENUM_VALUE30 EFT_SIZE_ADJ
 108 #define SPECENUM_VALUE30NAME "Size_Adj"
 109 #define SPECENUM_VALUE31 EFT_SIZE_UNLIMIT
 110 #define SPECENUM_VALUE31NAME "Size_Unlimit"
 111 #define SPECENUM_VALUE32 EFT_SS_STRUCTURAL
 112 #define SPECENUM_VALUE32NAME "SS_Structural"
 113 #define SPECENUM_VALUE33 EFT_SS_COMPONENT
 114 #define SPECENUM_VALUE33NAME "SS_Component"
 115 #define SPECENUM_VALUE34 EFT_SS_MODULE
 116 #define SPECENUM_VALUE34NAME "SS_Module"
 117 #define SPECENUM_VALUE35 EFT_SPY_RESISTANT
 118 #define SPECENUM_VALUE35NAME "Spy_Resistant"
 119 #define SPECENUM_VALUE36 EFT_MOVE_BONUS
 120 #define SPECENUM_VALUE36NAME "Move_Bonus"
 121 #define SPECENUM_VALUE37 EFT_UNIT_NO_LOSE_POP
 122 #define SPECENUM_VALUE37NAME "Unit_No_Lose_Pop"
 123 #define SPECENUM_VALUE38 EFT_UNIT_RECOVER
 124 #define SPECENUM_VALUE38NAME "Unit_Recover"
 125 #define SPECENUM_VALUE39 EFT_UPGRADE_UNIT
 126 #define SPECENUM_VALUE39NAME "Upgrade_Unit"
 127 #define SPECENUM_VALUE40 EFT_UPKEEP_FREE
 128 #define SPECENUM_VALUE40NAME "Upkeep_Free"
 129 #define SPECENUM_VALUE41 EFT_TECH_UPKEEP_FREE
 130 #define SPECENUM_VALUE41NAME "Tech_Upkeep_Free"
 131 #define SPECENUM_VALUE42 EFT_NO_UNHAPPY
 132 #define SPECENUM_VALUE42NAME "No_Unhappy"
 133 #define SPECENUM_VALUE43 EFT_VETERAN_BUILD
 134 #define SPECENUM_VALUE43NAME "Veteran_Build"
 135 #define SPECENUM_VALUE44 EFT_VETERAN_COMBAT
 136 #define SPECENUM_VALUE44NAME "Veteran_Combat"
 137 #define SPECENUM_VALUE45 EFT_HP_REGEN
 138 #define SPECENUM_VALUE45NAME "HP_Regen"
 139 #define SPECENUM_VALUE46 EFT_CITY_VISION_RADIUS_SQ
 140 #define SPECENUM_VALUE46NAME "City_Vision_Radius_Sq"
 141 #define SPECENUM_VALUE47 EFT_UNIT_VISION_RADIUS_SQ
 142 #define SPECENUM_VALUE47NAME "Unit_Vision_Radius_Sq"
 143 /* Interacts with F_BADWALLATTACKER, ignored by F_IGWALL */
 144 #define SPECENUM_VALUE48 EFT_DEFEND_BONUS
 145 #define SPECENUM_VALUE48NAME "Defend_Bonus"
 146 #define SPECENUM_VALUE49 EFT_TRADEROUTE_PCT
 147 #define SPECENUM_VALUE49NAME "Traderoute_Pct"
 148 #define SPECENUM_VALUE50 EFT_GAIN_AI_LOVE
 149 #define SPECENUM_VALUE50NAME "Gain_AI_Love"
 150 #define SPECENUM_VALUE51 EFT_TURN_YEARS
 151 #define SPECENUM_VALUE51NAME "Turn_Years"
 152 #define SPECENUM_VALUE52 EFT_SLOW_DOWN_TIMELINE
 153 #define SPECENUM_VALUE52NAME "Slow_Down_Timeline"
 154 #define SPECENUM_VALUE53 EFT_CIVIL_WAR_CHANCE
 155 #define SPECENUM_VALUE53NAME "Civil_War_Chance"
 156 /* change of the migration score */
 157 #define SPECENUM_VALUE54 EFT_MIGRATION_PCT
 158 #define SPECENUM_VALUE54NAME "Migration_Pct"
 159 /* +1 unhappy when more than this cities */
 160 #define SPECENUM_VALUE55 EFT_EMPIRE_SIZE_BASE
 161 #define SPECENUM_VALUE55NAME "Empire_Size_Base"
 162 /* adds additional +1 unhappy steps to above */
 163 #define SPECENUM_VALUE56 EFT_EMPIRE_SIZE_STEP
 164 #define SPECENUM_VALUE56NAME "Empire_Size_Step"
 165 #define SPECENUM_VALUE57 EFT_MAX_RATES
 166 #define SPECENUM_VALUE57NAME "Max_Rates"
 167 #define SPECENUM_VALUE58 EFT_MARTIAL_LAW_EACH
 168 #define SPECENUM_VALUE58NAME "Martial_Law_Each"
 169 #define SPECENUM_VALUE59 EFT_MARTIAL_LAW_MAX
 170 #define SPECENUM_VALUE59NAME "Martial_Law_Max"
 171 #define SPECENUM_VALUE60 EFT_RAPTURE_GROW
 172 #define SPECENUM_VALUE60NAME "Rapture_Grow"
 173 #define SPECENUM_VALUE61 EFT_REVOLUTION_UNHAPPINESS
 174 #define SPECENUM_VALUE61NAME "Revolution_Unhappiness"
 175 #define SPECENUM_VALUE62 EFT_HAS_SENATE
 176 #define SPECENUM_VALUE62NAME "Has_Senate"
 177 #define SPECENUM_VALUE63 EFT_INSPIRE_PARTISANS
 178 #define SPECENUM_VALUE63NAME "Inspire_Partisans"
 179 #define SPECENUM_VALUE64 EFT_HAPPINESS_TO_GOLD
 180 #define SPECENUM_VALUE64NAME "Happiness_To_Gold"
 181 /* stupid special case; we hate it */
 182 #define SPECENUM_VALUE65 EFT_FANATICS
 183 #define SPECENUM_VALUE65NAME "Fanatics"
 184 #define SPECENUM_VALUE66 EFT_NO_DIPLOMACY
 185 #define SPECENUM_VALUE66NAME "No_Diplomacy"
 186 #define SPECENUM_VALUE67 EFT_TRADE_REVENUE_BONUS
 187 #define SPECENUM_VALUE67NAME "Trade_Revenue_Bonus"
 188 /* multiply unhappy upkeep by this effect */
 189 #define SPECENUM_VALUE68 EFT_UNHAPPY_FACTOR
 190 #define SPECENUM_VALUE68NAME "Unhappy_Factor"
 191 /* multiply upkeep by this effect */
 192 #define SPECENUM_VALUE69 EFT_UPKEEP_FACTOR
 193 #define SPECENUM_VALUE69NAME "Upkeep_Factor"
 194 /* this many units are free from upkeep */
 195 #define SPECENUM_VALUE70 EFT_UNIT_UPKEEP_FREE_PER_CITY
 196 #define SPECENUM_VALUE70NAME "Unit_Upkeep_Free_Per_City"
 197 #define SPECENUM_VALUE71 EFT_OUTPUT_WASTE
 198 #define SPECENUM_VALUE71NAME "Output_Waste"
 199 #define SPECENUM_VALUE72 EFT_OUTPUT_WASTE_BY_DISTANCE
 200 #define SPECENUM_VALUE72NAME "Output_Waste_By_Distance"
 201 /* -1 penalty to tiles producing more than this */
 202 #define SPECENUM_VALUE73 EFT_OUTPUT_PENALTY_TILE
 203 #define SPECENUM_VALUE73NAME "Output_Penalty_Tile"
 204 #define SPECENUM_VALUE74 EFT_OUTPUT_INC_TILE_CELEBRATE
 205 #define SPECENUM_VALUE74NAME "Output_Inc_Tile_Celebrate"
 206 /* all citizens after this are unhappy */
 207 #define SPECENUM_VALUE75 EFT_CITY_UNHAPPY_SIZE
 208 #define SPECENUM_VALUE75NAME "City_Unhappy_Size"
 209 /* add to default squared city radius */
 210 #define SPECENUM_VALUE76 EFT_CITY_RADIUS_SQ
 211 #define SPECENUM_VALUE76NAME "City_Radius_Sq"
 212 /* number of build slots for units */
 213 #define SPECENUM_VALUE77 EFT_CITY_BUILD_SLOTS
 214 #define SPECENUM_VALUE77NAME "City_Build_Slots"
 215 #define SPECENUM_VALUE78 EFT_UPGRADE_PRICE_PCT
 216 #define SPECENUM_VALUE78NAME "Upgrade_Price_Pct"
 217 /* City should use walls gfx */
 218 #define SPECENUM_VALUE79 EFT_VISIBLE_WALLS
 219 #define SPECENUM_VALUE79NAME "Visible_Walls"
 220 #define SPECENUM_VALUE80 EFT_TECH_COST_FACTOR
 221 #define SPECENUM_VALUE80NAME "Tech_Cost_Factor"
 222 /* [x%] gold upkeep instead of [1] shield upkeep for units */
 223 #define SPECENUM_VALUE81 EFT_SHIELD2GOLD_FACTOR
 224 #define SPECENUM_VALUE81NAME "Shield2Gold_Factor"
 225 #define SPECENUM_VALUE82 EFT_TILE_WORKABLE
 226 #define SPECENUM_VALUE82NAME "Tile_Workable"
 227 /* The index for the city image of the given city style. */
 228 #define SPECENUM_VALUE83 EFT_CITY_IMAGE
 229 #define SPECENUM_VALUE83NAME "City_Image"
 230 #define SPECENUM_VALUE84 EFT_IRRIG_POSSIBLE
 231 #define SPECENUM_VALUE84NAME "Irrig_Possible"
 232 #define SPECENUM_VALUE85 EFT_MAX_TRADE_ROUTES
 233 #define SPECENUM_VALUE85NAME "Max_Trade_Routes"
 234 #define SPECENUM_VALUE86 EFT_GOV_CENTER
 235 #define SPECENUM_VALUE86NAME "Gov_Center"
 236 #define SPECENUM_VALUE87 EFT_TRANSFORM_POSSIBLE
 237 #define SPECENUM_VALUE87NAME "Transform_Possible"
 238 #define SPECENUM_VALUE88 EFT_MINING_POSSIBLE
 239 #define SPECENUM_VALUE88NAME "Mining_Possible"
 240 #define SPECENUM_VALUE89 EFT_IRRIG_TF_POSSIBLE
 241 #define SPECENUM_VALUE89NAME "Irrig_TF_Possible"
 242 #define SPECENUM_VALUE90 EFT_MINING_TF_POSSIBLE
 243 #define SPECENUM_VALUE90NAME "Mining_TF_Possible"
 244 #define SPECENUM_VALUE91 EFT_NOT_TECH_SOURCE
 245 #define SPECENUM_VALUE91NAME "Not_Tech_Source"
 246 #define SPECENUM_VALUE92 EFT_ENEMY_CITIZEN_UNHAPPY_PCT
 247 #define SPECENUM_VALUE92NAME "Enemy_Citizen_Unhappy_Pct"
 248 #define SPECENUM_VALUE93 EFT_IRRIGATION_PCT
 249 #define SPECENUM_VALUE93NAME "Irrigation_Pct"
 250 #define SPECENUM_VALUE94 EFT_MINING_PCT
 251 #define SPECENUM_VALUE94NAME "Mining_Pct"
 252 #define SPECENUM_VALUE95 EFT_OUTPUT_TILE_PUNISH_PCT
 253 #define SPECENUM_VALUE95NAME "Output_Tile_Punish_Pct"
 254 #define SPECENUM_VALUE96 EFT_UNIT_BRIBE_COST_PCT
 255 #define SPECENUM_VALUE96NAME "Unit_Bribe_Cost_Pct"
 256 #define SPECENUM_VALUE97 EFT_VICTORY
 257 #define SPECENUM_VALUE97NAME "Victory"
 258 #define SPECENUM_VALUE98 EFT_PERFORMANCE
 259 #define SPECENUM_VALUE98NAME "Performance"
 260 #define SPECENUM_VALUE99 EFT_HISTORY
 261 #define SPECENUM_VALUE99NAME "History"
 262 #define SPECENUM_VALUE100 EFT_NATION_PERFORMANCE
 263 #define SPECENUM_VALUE100NAME "National_Performance"
 264 #define SPECENUM_VALUE101 EFT_NATION_HISTORY
 265 #define SPECENUM_VALUE101NAME "National_History"
 266 #define SPECENUM_VALUE102 EFT_TURN_FRAGMENTS
 267 #define SPECENUM_VALUE102NAME "Turn_Fragments"
 268 #define SPECENUM_VALUE103 EFT_MAX_STOLEN_GOLD_PM
 269 #define SPECENUM_VALUE103NAME "Max_Stolen_Gold_Pm"
 270 #define SPECENUM_VALUE104 EFT_THIEFS_SHARE_PM
 271 #define SPECENUM_VALUE104NAME "Thiefs_Share_Pm"
 272 #define SPECENUM_VALUE105 EFT_RETIRE_PCT
 273 #define SPECENUM_VALUE105NAME "Retire_Pct"
 274 #define SPECENUM_VALUE106 EFT_ILLEGAL_ACTION_MOVE_COST
 275 #define SPECENUM_VALUE106NAME "Illegal_Action_Move_Cost"
 276 #define SPECENUM_VALUE107 EFT_HAVE_CONTACTS
 277 #define SPECENUM_VALUE107NAME "Have_Contacts"
 278 #define SPECENUM_VALUE108 EFT_CASUS_BELLI_CAUGHT
 279 #define SPECENUM_VALUE108NAME "Casus_Belli_Caught"
 280 #define SPECENUM_VALUE109 EFT_CASUS_BELLI_SUCCESS
 281 #define SPECENUM_VALUE109NAME "Casus_Belli_Success"
 282 #define SPECENUM_VALUE110 EFT_ACTION_ODDS_PCT
 283 #define SPECENUM_VALUE110NAME "Action_Odds_Pct"
 284 #define SPECENUM_VALUE111 EFT_BORDER_VISION
 285 #define SPECENUM_VALUE111NAME "Border_Vision"
 286 #define SPECENUM_VALUE112 EFT_STEALINGS_IGNORE
 287 #define SPECENUM_VALUE112NAME "Stealings_Ignore"
 288 #define SPECENUM_VALUE113 EFT_OUTPUT_WASTE_BY_REL_DISTANCE
 289 #define SPECENUM_VALUE113NAME "Output_Waste_By_Rel_Distance"
 290 #define SPECENUM_VALUE114 EFT_SABOTEUR_RESISTANT
 291 #define SPECENUM_VALUE114NAME "Building_Saboteur_Resistant"
 292 #define SPECENUM_VALUE115 EFT_UNIT_SLOTS
 293 #define SPECENUM_VALUE115NAME "Unit_Slots"
 294 #define SPECENUM_VALUE116 EFT_ATTACK_BONUS
 295 #define SPECENUM_VALUE116NAME "Attack_Bonus"
 296 /* keep this last */
 297 #define SPECENUM_COUNT EFT_COUNT
 298 #include "specenum_gen.h"
 299
 300 /* An effect is provided by a source.  If the source is present, and the
 301  * other conditions (described below) are met, the effect will be active.
 302  * Note the difference between effect and effect_type. */
 303 struct effect {
 304   enum effect_type type;
 305
 306   /* pointer to multipliers (NULL means that this effect has no multiplier  */
 307   struct  multiplier *multiplier;
 308
 309   /* The "value" of the effect.  The meaning of this varies between
 310    * effects.  When get_xxx_bonus() is called the value of all applicable
 311    * effects will be summed up. */
 312   int value;
 313
 314   /* An effect can have multiple requirements.  The effect will only be
 315    * active if all of these requirement are met. */
 316   struct requirement_vector reqs;
 317 };
 318
 319 /* An effect_list is a list of effects. */
 320 #define SPECLIST_TAG effect
 321 #define SPECLIST_TYPE struct effect
 322 #include "speclist.h"
 323 #define effect_list_iterate(effect_list, peffect) \
 324   TYPED_LIST_ITERATE(struct effect, effect_list, peffect)
 325 #define effect_list_iterate_end LIST_ITERATE_END
 326
 327 struct effect *effect_new(enum effect_type type, int value,
 328                           struct multiplier *pmul);
 329 struct effect *effect_copy(struct effect *old);
 330 void effect_req_append(struct effect *peffect, struct requirement req);
 331
 332 struct astring;
 333 void get_effect_req_text(const struct effect *peffect,
 334                          char *buf, size_t buf_len);
 335 void get_effect_list_req_text(const struct effect_list *plist,
 336                               struct astring *astr);
 337
 338 /* ruleset cache creation and communication functions */
 339 struct packet_ruleset_effect;
 340
 341 void ruleset_cache_init(void);
 342 void ruleset_cache_free(void);
 343 void recv_ruleset_effect(const struct packet_ruleset_effect *packet);
 344 void send_ruleset_cache(struct conn_list *dest);
 345
 346 int effect_cumulative_max(enum effect_type type, struct universal *for_uni);
 347 int effect_cumulative_min(enum effect_type type, struct universal *for_uni);
 348
 349 bool is_building_replaced(const struct city *pcity,
 350                           struct impr_type *pimprove,
 351                           const enum req_problem_type prob_type);
 352
 353 /* functions to know the bonuses a certain effect is granting */
 354 int get_world_bonus(enum effect_type effect_type);
 355 int get_player_bonus(const struct player *plr, enum effect_type effect_type);
 356 int get_city_bonus(const struct city *pcity, enum effect_type effect_type);
 357 int get_city_specialist_output_bonus(const struct city *pcity,
 358                                      const struct specialist *pspecialist,
 359                                      const struct output_type *poutput,
 360                                      enum effect_type effect_type);
 361 int get_city_tile_output_bonus(const struct city *pcity,
 362                                const struct tile *ptile,
 363                                const struct output_type *poutput,
 364                                enum effect_type effect_type);
 365 int get_player_output_bonus(const struct player *pplayer,
 366                             const struct output_type *poutput,
 367                             enum effect_type effect_type);
 368 int get_city_output_bonus(const struct city *pcity,
 369                           const struct output_type *poutput,
 370                           enum effect_type effect_type);
 371 int get_building_bonus(const struct city *pcity,
 372                        const struct impr_type *building,
 373                        enum effect_type effect_type);
 374 int get_unittype_bonus(const struct player *pplayer,
 375                        const struct tile *ptile, /* pcity is implied */
 376                        const struct unit_type *punittype,
 377                        enum effect_type effect_type);
 378 int get_unit_bonus(const struct unit *punit, enum effect_type effect_type);
 379 int get_tile_bonus(const struct tile *ptile, const struct unit *punit,
 380                    enum effect_type etype);
 381
 382 /* miscellaneous auxiliary effects functions */
 383 struct effect_list *get_req_source_effects(struct universal *psource);
 384
 385 int get_player_bonus_effects(struct effect_list *plist,
 386                              const struct player *pplayer,
 387                              enum effect_type effect_type);
 388 int get_city_bonus_effects(struct effect_list *plist,
 389                            const struct city *pcity,
 390                            const struct output_type *poutput,
 391                            enum effect_type effect_type);
 392
 393 int get_target_bonus_effects(struct effect_list *plist,
 394                              const struct player *target_player,
 395                              const struct player *other_player,
 396                              const struct city *target_city,
 397                              const struct impr_type *target_building,
 398                              const struct tile *target_tile,
 399                              const struct unit *target_unit,
 400                              const struct unit_type *target_unittype,
 401                              const struct output_type *target_output,
 402                              const struct specialist *target_specialist,
 403                              const struct action *target_action,
 404                              enum effect_type effect_type);
 405
 406 bool building_has_effect(const struct impr_type *pimprove,
 407                          enum effect_type effect_type);
 408 int get_current_construction_bonus(const struct city *pcity,
 409                                    enum effect_type effect_type,
 410                                    const enum req_problem_type prob_type);
 411 int get_potential_improvement_bonus(struct impr_type *pimprove,
 412                                     const struct city *pcity,
 413                                     enum effect_type effect_type,
 414                                     const enum req_problem_type prob_type);
 415
 416 struct effect_list *get_effects(enum effect_type effect_type);
 417
 418 typedef bool (*iec_cb)(struct effect*, void *data);
 419 bool iterate_effect_cache(iec_cb cb, void *data);
 420
 421 #ifdef __cplusplus
 422 }
 423 #endif /* __cplusplus */
 424
 425 #endif  /* FC__EFFECTS_H */