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@ -210,6 +210,12 @@ void SubtractMoneyFromCompanyFract(CompanyID company, CommandCost cst)
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if (cost != 0) SubtractMoneyFromAnyCompany(c, CommandCost(cst.GetExpensesType(), cost));
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}
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/**
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* Set the right DParams to get the name of an owner.
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* @param owner the owner to get the name of.
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* @param tile optional tile to get the right town.
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* @pre if tile == 0, then owner can't be OWNER_TOWN.
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*/
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void GetNameOfOwner(Owner owner, TileIndex tile)
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{
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SetDParam(2, owner);
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@ -222,6 +228,7 @@ void GetNameOfOwner(Owner owner, TileIndex tile)
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SetDParam(1, owner);
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}
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} else {
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assert(tile != 0);
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const Town *t = ClosestTownFromTile(tile, UINT_MAX);
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SetDParam(0, STR_TOWN_NAME);
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@ -230,16 +237,32 @@ void GetNameOfOwner(Owner owner, TileIndex tile)
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}
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bool CheckOwnership(Owner owner)
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/**
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* Check whether the current owner owns something.
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* If that isn't the case an appropriate error will be given.
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* @param owner the owner of the thing to check.
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* @param tile optional tile to get the right town.
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* @pre if tile == 0 then the owner can't be OWNER_TOWN.
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* @return true iff it's owned by the current company.
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*/
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bool CheckOwnership(Owner owner, TileIndex tile)
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{
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assert(owner < OWNER_END);
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assert(owner != OWNER_TOWN || tile != 0);
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if (owner == _current_company) return true;
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_error_message = STR_ERROR_OWNED_BY;
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GetNameOfOwner(owner, 0);
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GetNameOfOwner(owner, tile);
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return false;
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}
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/**
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* Check whether the current owner owns the stuff on
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* the given tile. If that isn't the case an
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* appropriate error will be given.
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* @param tile the tile to check.
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* @return true iff it's owned by the current company.
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*/
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bool CheckTileOwnership(TileIndex tile)
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{
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Owner owner = GetTileOwner(tile);
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