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(svn r19184) -Codechange: Return succeeded/failed command from CheckIfIndustryTilesAreFree().

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alberth 2010-02-21 15:27:11 +00:00
parent 676a8bda3e
commit c4f67de69c
1 changed files with 34 additions and 19 deletions
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53
src/industry_cmd.cpp
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@ -1310,9 +1310,17 @@ bool IsSlopeRefused(Slope current, Slope refused)
return false;
}
static bool CheckIfIndustryTilesAreFree(TileIndex tile, const IndustryTileTable *it, uint itspec_index, int type, bool *custom_shape_check = NULL)
/** Are the tiles of the industry free?
* @param tile Position to check.
* @param it Industry tiles table.
* @param itspec_index The index of the itsepc to build/fund
* @param type Type of the industry.
* @param [out] custom_shape_check Perform custom check for the site.
* @return Failed or succeeded command.
*/
static CommandCost CheckIfIndustryTilesAreFree(TileIndex tile, const IndustryTileTable *it, uint itspec_index, int type, bool *custom_shape_check = NULL)
{
_error_message = STR_ERROR_SITE_UNSUITABLE;
CommandCost ret = CommandCost(STR_ERROR_SITE_UNSUITABLE);
bool refused_slope = false;
bool custom_shape = false;
@ -1321,28 +1329,28 @@ static bool CheckIfIndustryTilesAreFree(TileIndex tile, const IndustryTileTable
TileIndex cur_tile = TileAddWrap(tile, it->ti.x, it->ti.y);
if (!IsValidTile(cur_tile)) {
return false;
return ret;
}
if (gfx == GFX_WATERTILE_SPECIALCHECK) {
if (!IsTileType(cur_tile, MP_WATER) ||
GetTileSlope(cur_tile, NULL) != SLOPE_FLAT) {
return false;
return ret;
}
} else {
if (!EnsureNoVehicleOnGround(cur_tile)) return false;
if (MayHaveBridgeAbove(cur_tile) && IsBridgeAbove(cur_tile)) return false;
if (!EnsureNoVehicleOnGround(cur_tile)) return ret;
if (MayHaveBridgeAbove(cur_tile) && IsBridgeAbove(cur_tile)) return ret;
const IndustryTileSpec *its = GetIndustryTileSpec(gfx);
IndustryBehaviour ind_behav = GetIndustrySpec(type)->behaviour;
/* Perform land/water check if not disabled */
if (!HasBit(its->slopes_refused, 5) && (IsWaterTile(cur_tile) == !(ind_behav & INDUSTRYBEH_BUILT_ONWATER))) return false;
if (!HasBit(its->slopes_refused, 5) && (IsWaterTile(cur_tile) == !(ind_behav & INDUSTRYBEH_BUILT_ONWATER))) return ret;
if (HasBit(its->callback_mask, CBM_INDT_SHAPE_CHECK)) {
custom_shape = true;
if (!PerformIndustryTileSlopeCheck(tile, cur_tile, its, type, gfx, itspec_index)) return false;
if (!PerformIndustryTileSlopeCheck(tile, cur_tile, its, type, gfx, itspec_index)) return ret;
} else {
Slope tileh = GetTileSlope(cur_tile, NULL);
refused_slope |= IsSlopeRefused(tileh, its->slopes_refused);
@ -1351,8 +1359,7 @@ static bool CheckIfIndustryTilesAreFree(TileIndex tile, const IndustryTileTable
if ((ind_behav & (INDUSTRYBEH_ONLY_INTOWN | INDUSTRYBEH_TOWN1200_MORE)) || // Tile must be a house
((ind_behav & INDUSTRYBEH_ONLY_NEARTOWN) && IsTileType(cur_tile, MP_HOUSE))) { // Tile is allowed to be a house (and it is a house)
if (!IsTileType(cur_tile, MP_HOUSE)) {
_error_message = STR_ERROR_CAN_ONLY_BE_BUILT_IN_TOWNS;
return false;
return_cmd_error(STR_ERROR_CAN_ONLY_BE_BUILT_IN_TOWNS);
}
/* Clear the tiles as OWNER_TOWN to not affect town rating, and to not clear protected buildings */
@ -1361,12 +1368,12 @@ static bool CheckIfIndustryTilesAreFree(TileIndex tile, const IndustryTileTable
bool not_clearable = DoCommand(cur_tile, 0, 0, DC_NONE, CMD_LANDSCAPE_CLEAR).Failed();
_current_company = old_company;
if (not_clearable) return false;
if (not_clearable) return ret;
} else {
/* Clear the tiles, but do not affect town ratings */
bool not_clearable = DoCommand(cur_tile, 0, 0, DC_AUTO | DC_NO_TEST_TOWN_RATING | DC_NO_MODIFY_TOWN_RATING, CMD_LANDSCAPE_CLEAR).Failed();
if (not_clearable) return false;
if (not_clearable) return ret;
}
}
} while ((++it)->ti.x != -0x80);
@ -1376,7 +1383,10 @@ static bool CheckIfIndustryTilesAreFree(TileIndex tile, const IndustryTileTable
/* It is almost impossible to have a fully flat land in TG, so what we
* do is that we check if we can make the land flat later on. See
* CheckIfCanLevelIndustryPlatform(). */
return !refused_slope || (_settings_game.game_creation.land_generator == LG_TERRAGENESIS && _generating_world && !custom_shape && !_ignore_restrictions);
if (!refused_slope || (_settings_game.game_creation.land_generator == LG_TERRAGENESIS && _generating_world && !custom_shape && !_ignore_restrictions)) {
return CommandCost();
}
return ret;
}
/** Is the industry allowed to be built at this place for the town?
@ -1693,18 +1703,20 @@ static Industry *CreateNewIndustryHelper(TileIndex tile, IndustryType type, DoCo
const IndustryTileTable *it = indspec->table[itspec_index];
bool custom_shape_check = false;
if (!CheckIfIndustryTilesAreFree(tile, it, itspec_index, type, &custom_shape_check)) return NULL;
CommandCost ret = CheckIfIndustryTilesAreFree(tile, it, itspec_index, type, &custom_shape_check);
ret.SetGlobalErrorMessage();
if (ret.Failed()) return NULL;
if (HasBit(GetIndustrySpec(type)->callback_mask, CBM_IND_LOCATION)) {
if (!CheckIfCallBackAllowsCreation(tile, type, itspec_index, seed)) return NULL;
} else {
CommandCost ret = _check_new_industry_procs[indspec->check_proc](tile);
ret = _check_new_industry_procs[indspec->check_proc](tile);
ret.SetGlobalErrorMessage();
if (ret.Failed()) return NULL;
}
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;
CommandCost ret = CheckIfFarEnoughFromIndustry(tile, type);
ret = CheckIfFarEnoughFromIndustry(tile, type);
ret.SetGlobalErrorMessage();
if (ret.Failed()) return NULL;
@ -1788,11 +1800,14 @@ CommandCost CmdBuildIndustry(TileIndex tile, DoCommandFlag flags, uint32 p1, uin
int num = GB(p1, 8, 8);
if (num >= count) return CMD_ERROR;
_error_message = STR_ERROR_SITE_UNSUITABLE;
CommandCost ret = CommandCost(STR_ERROR_SITE_UNSUITABLE);
ret.SetGlobalErrorMessage();
do {
if (--count < 0) return CMD_ERROR;
if (--count < 0) return ret;
if (--num < 0) num = indspec->num_table - 1;
} while (!CheckIfIndustryTilesAreFree(tile, itt[num], num, it));
ret = CheckIfIndustryTilesAreFree(tile, itt[num], num, it);
ret.SetGlobalErrorMessage();
} while (ret.Failed());
ind = CreateNewIndustryHelper(tile, it, flags, indspec, num, p2, _current_company);
if (ind == NULL) return CMD_ERROR;