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(svn r19400) -Codechange: CheckforTownRating returns a CommandCost.

This commit is contained in:
alberth 2010-03-13 15:33:07 +00:00
parent 7134201524
commit 6b6ff9c52b
4 changed files with 21 additions and 15 deletions
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4
src/road_cmd.cpp
View File

@ -140,7 +140,9 @@ bool CheckAllowRemoveRoad(TileIndex tile, RoadBits remove, Owner owner, RoadType
/* check if you're allowed to remove the street owned by a town
* removal allowance depends on difficulty setting */
if (!CheckforTownRating(flags, t, ROAD_REMOVE)) return false;
CommandCost ret = CheckforTownRating(flags, t, ROAD_REMOVE);
ret.SetGlobalErrorMessage();
if (ret.Failed()) return false;
/* Get a bitmask of which neighbouring roads has a tile */
RoadBits n = ROAD_NONE;

2
src/town.h
View File

@ -179,7 +179,7 @@ enum {
TOWN_HAS_STADIUM = 2 ///< There can be only one stadium by town.
};
bool CheckforTownRating(DoCommandFlag flags, Town *t, TownRatingCheckType type);
CommandCost CheckforTownRating(DoCommandFlag flags, Town *t, TownRatingCheckType type);
TileIndexDiff GetHouseNorthPart(HouseID &house);

16
src/town_cmd.cpp
View File

@ -2795,12 +2795,19 @@ void ChangeTownRating(Town *t, int add, int max, DoCommandFlag flags)
}
}
bool CheckforTownRating(DoCommandFlag flags, Town *t, TownRatingCheckType type)
/**
* Does the town authority allow the (destructive) action of the current company?
* @param flags Checking flags of the command.
* @param t Town that must allow the company action.
* @param type Type of action that is wanted.
* @return A succeeded command if the action is allowed, a failed command if it is not allowed.
*/
CommandCost CheckforTownRating(DoCommandFlag flags, Town *t, TownRatingCheckType type)
{
/* if magic_bulldozer cheat is active, town doesn't restrict your destructive actions */
if (t == NULL || !Company::IsValidID(_current_company) ||
_cheats.magic_bulldozer.value || (flags & DC_NO_TEST_TOWN_RATING)) {
return true;
return CommandCost();
}
/* minimum rating needed to be allowed to remove stuff */
@ -2819,11 +2826,10 @@ bool CheckforTownRating(DoCommandFlag flags, Town *t, TownRatingCheckType type)
if (GetRating(t) < needed) {
SetDParam(0, t->index);
_error_message = STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS;
return false;
return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
}
return true;
return CommandCost();
}
void TownsMonthlyLoop()

14
src/tunnelbridge_cmd.cpp
View File

@ -638,10 +638,9 @@ static CommandCost DoClearTunnel(TileIndex tile, DoCommandFlag flags)
/* Check if you are allowed to remove the tunnel owned by a town
* Removal depends on difficulty settings */
if (!CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE)) {
SetDParam(0, t->index);
return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
}
CommandCost ret = CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE);
ret.SetGlobalErrorMessage();
if (ret.Failed()) return ret;
}
/* checks if the owner is town then decrease town rating by RATING_TUNNEL_BRIDGE_DOWN_STEP until
@ -706,10 +705,9 @@ static CommandCost DoClearBridge(TileIndex tile, DoCommandFlag flags)
/* Check if you are allowed to remove the bridge owned by a town
* Removal depends on difficulty settings */
if (!CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE)) {
SetDParam(0, t->index);
return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
}
CommandCost ret = CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE);
ret.SetGlobalErrorMessage();
if (ret.Failed()) return ret;
}
/* checks if the owner is town then decrease town rating by RATING_TUNNEL_BRIDGE_DOWN_STEP until