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(svn r19182) -Codechange: Use CommandCost return value in CheckIfIndustryIsAllowed() and CheckIfFarEnoughFromIndustry().

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alberth 2010-02-21 13:32:14 +00:00
parent 1a4c211566
commit 50bdd29758
1 changed files with 26 additions and 15 deletions
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41
src/industry_cmd.cpp
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@ -1379,19 +1379,23 @@ static bool CheckIfIndustryTilesAreFree(TileIndex tile, const IndustryTileTable
return !refused_slope || (_settings_game.game_creation.land_generator == LG_TERRAGENESIS && _generating_world && !custom_shape && !_ignore_restrictions);
}
static bool CheckIfIndustryIsAllowed(TileIndex tile, int type, const Town *t)
/** Is the industry allowed to be built at this place for the town?
* @param tile Tile to construct the industry.
* @param type Type of the industry.
* @param t Town authority that the industry belongs to.
* @return Succeeded or failed command.
*/
static CommandCost CheckIfIndustryIsAllowed(TileIndex tile, int type, const Town *t)
{
if ((GetIndustrySpec(type)->behaviour & INDUSTRYBEH_TOWN1200_MORE) && t->population < 1200) {
_error_message = STR_ERROR_CAN_ONLY_BE_BUILT_IN_TOWNS_WITH_POPULATION_OF_1200;
return false;
return_cmd_error(STR_ERROR_CAN_ONLY_BE_BUILT_IN_TOWNS_WITH_POPULATION_OF_1200);
}
if ((GetIndustrySpec(type)->behaviour & INDUSTRYBEH_ONLY_NEARTOWN) && DistanceMax(t->xy, tile) > 9) {
_error_message = STR_ERROR_SITE_UNSUITABLE;
return false;
return_cmd_error(STR_ERROR_SITE_UNSUITABLE);
}
return true;
return CommandCost();
}
static bool CheckCanTerraformSurroundingTiles(TileIndex tile, uint height, int internal)
@ -1502,14 +1506,19 @@ static bool CheckIfCanLevelIndustryPlatform(TileIndex tile, DoCommandFlag flags,
}
static bool CheckIfFarEnoughFromIndustry(TileIndex tile, int type)
/** Check that the new industry is far enough from other industries.
* @param tile Tile to construct the industry.
* @param type Type of the new industry.
* @return Succeeded or failed command.
*/
static CommandCost CheckIfFarEnoughFromIndustry(TileIndex tile, int type)
{
const IndustrySpec *indspec = GetIndustrySpec(type);
const Industry *i;
if (_settings_game.economy.same_industry_close && indspec->IsRawIndustry())
/* Allow primary industries to be placed close to any other industry */
return true;
return CommandCost();
FOR_ALL_INDUSTRIES(i) {
/* Within 14 tiles from another industry is considered close */
@ -1523,8 +1532,7 @@ static bool CheckIfFarEnoughFromIndustry(TileIndex tile, int type)
_game_mode != GM_EDITOR || // editor must not be stopped
!_settings_game.economy.same_industry_close ||
!_settings_game.economy.multiple_industry_per_town)) {
_error_message = STR_ERROR_INDUSTRY_TOO_CLOSE;
return false;
return_cmd_error(STR_ERROR_INDUSTRY_TOO_CLOSE);
}
/* check if there are any conflicting industry types around */
@ -1532,11 +1540,10 @@ static bool CheckIfFarEnoughFromIndustry(TileIndex tile, int type)
i->type == indspec->conflicting[1] ||
i->type == indspec->conflicting[2]) &&
in_low_distance) {
_error_message = STR_ERROR_INDUSTRY_TOO_CLOSE;
return false;
return_cmd_error(STR_ERROR_INDUSTRY_TOO_CLOSE);
}
}
return true;
return CommandCost();
}
/** Production level maximum, minimum and default values.
@ -1697,12 +1704,16 @@ static Industry *CreateNewIndustryHelper(TileIndex tile, IndustryType type, DoCo
}
if (!custom_shape_check && _settings_game.game_creation.land_generator == LG_TERRAGENESIS && _generating_world && !_ignore_restrictions && !CheckIfCanLevelIndustryPlatform(tile, DC_NO_WATER, it, type)) return NULL;
if (!CheckIfFarEnoughFromIndustry(tile, type)) return NULL;
CommandCost ret = CheckIfFarEnoughFromIndustry(tile, type);
ret.SetGlobalErrorMessage();
if (ret.Failed()) return NULL;
const Town *t = FindTownForIndustry(tile, type);
if (t == NULL) return NULL;
if (!CheckIfIndustryIsAllowed(tile, type, t)) return NULL;
ret = CheckIfIndustryIsAllowed(tile, type, t);
ret.SetGlobalErrorMessage();
if (ret.Failed()) return NULL;
if (!Industry::CanAllocateItem()) return NULL;