style.c

Go to the documentation of this file.

/***********************************************************************
 Freeciv - Copyright (C) 2005 - The Freeciv Project
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.
 
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
***********************************************************************/
 
#ifdef HAVE_CONFIG_H
#include <fc_config.h>
#endif
 
/* utility */
#include "mem.h"
 
/* common */
#include "fc_types.h"
#include "game.h"
#include "name_translation.h"
 
 
#include "style.h"
 
static struct nation_style *styles = nullptr;
 
static struct music_style *music_styles = nullptr;
 
/**********************************************************************/
void styles_alloc(int count)
{
  int i;
 
  styles = fc_malloc(count * sizeof(struct nation_style));
 
  for (i = 0; i < count; i++) {
    styles[i].id = i;
    styles[i].ruledit_disabled = FALSE;
  }
}
 
/**********************************************************************/
void styles_free(void)
{
  free(styles);
  styles = nullptr;
}
 
/**********************************************************************/
int style_count(void)
{
  return game.control.num_styles;
}
 
/**********************************************************************/
int style_number(const struct nation_style *pstyle)
{
  return pstyle->id;
}
 
/**********************************************************************/
int style_index(const struct nation_style *pstyle)
{
  return pstyle - styles;
}
 
/**********************************************************************/
struct nation_style *style_by_number(int id)
{
  fc_assert_ret_val(id >= 0 && id < game.control.num_styles, nullptr);
 
  return &styles[id];
}
 
/**********************************************************************/
const char *style_name_translation(const struct nation_style *pstyle)
{
  return name_translation_get(&pstyle->name);
}
 
/**********************************************************************/
const char *style_rule_name(const struct nation_style *pstyle)
{
  return rule_name_get(&pstyle->name);
}
 
/**********************************************************************/
struct nation_style *style_by_rule_name(const char *name)
{
  const char *qs = Qn_(name);
 
  styles_iterate(pstyle) {
    if (!fc_strcasecmp(style_rule_name(pstyle), qs)) {
      return pstyle;
    }
  } styles_iterate_end;
 
  return nullptr;
}
 
/**********************************************************************/
void music_styles_alloc(int count)
{
  int i;
 
  music_styles = fc_malloc(count * sizeof(struct music_style));
 
  for (i = 0; i < count; i++) {
    music_styles[i].id = i;
    requirement_vector_init(&(music_styles[i].reqs));
  }
}
 
/**********************************************************************/
void music_styles_free(void)
{
  music_styles_iterate(pmus) {
    requirement_vector_free(&(pmus->reqs));
  } music_styles_iterate_end;
 
  free(music_styles);
  music_styles = nullptr;
}
 
/**********************************************************************/
int music_style_number(const struct music_style *pms)
{
  return pms->id;
}
 
/**********************************************************************/
struct music_style *music_style_by_number(int id)
{
  fc_assert_ret_val(id >= 0 && id < game.control.num_music_styles, nullptr);
 
  if (music_styles == nullptr) {
    return nullptr;
  }
 
  return &music_styles[id];
}
 
/**********************************************************************/
struct music_style *player_music_style(struct player *plr)
{
  struct music_style *best = nullptr;
  const struct req_context plr_context = { .player = plr };
 
  music_styles_iterate(pms) {
    if (are_reqs_active(&plr_context, nullptr, &pms->reqs, RPT_CERTAIN)) {
      best = pms;
    }
  } music_styles_iterate_end;
 
  return best;
}
 
/**********************************************************************/
int style_of_city(const struct city *pcity)
{
  return pcity->style;
}
 
/**********************************************************************/
int basic_city_style_for_style(struct nation_style *pstyle)
{
  int i;
 
  for (i = game.control.num_city_styles - 1; i >= 0; i--) {
    enum fc_tristate style_style = TRI_MAYBE;
 
    requirement_vector_iterate(&city_styles[i].reqs, preq) {
      if (preq->source.kind == VUT_STYLE
          && preq->source.value.style == pstyle
          && style_style != TRI_NO) {
        style_style = TRI_YES;
      } else {
        /* No any other requirements allowed at the moment.
         * TODO: Allow some other reqs */
        style_style = TRI_NO;
        break;
      }
    } requirement_vector_iterate_end;
 
    if (style_style == TRI_YES) {
      return i;
    }
  }
 
  return -1;
}
 
/**********************************************************************/
int city_style(struct city *pcity)
{
  int i;
  const struct req_context context = {
    .player = city_owner(pcity),
    .city = pcity,
    .tile = city_tile(pcity),
  };
 
  for (i = game.control.num_city_styles - 1; i >= 0; i--) {
    if (are_reqs_active(&context, nullptr,
                        &city_styles[i].reqs, RPT_CERTAIN)) {
      return i;
    }
  }
 
  return 0;
}