diff options
Diffstat (limited to 'src/rail.h')
| -rw-r--r-- | src/rail.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/rail.h b/src/rail.h index b8ef0cb12..03bc69364 100644 --- a/src/rail.h +++ b/src/rail.h @@ -379,13 +379,14 @@ static inline Money RailConvertCost(RailType from, RailType to) /** * Calculates the maintenance cost of a number of track bits. * @param railtype The railtype to get the cost of. - * @param num Number of track bits. + * @param num Number of track bits of this railtype. + * @param total_num Total number of track bits of all railtypes. * @return Total cost. */ -static inline Money RailMaintenanceCost(RailType railtype, uint32 num) +static inline Money RailMaintenanceCost(RailType railtype, uint32 num, uint32 total_num) { assert(railtype < RAILTYPE_END); - return (_price[PR_INFRASTRUCTURE_RAIL] * GetRailTypeInfo(railtype)->maintenance_multiplier * num * (1 + IntSqrt(num))) >> 11; // 4 bits fraction for the multiplier and 7 bits scaling. + return (_price[PR_INFRASTRUCTURE_RAIL] * GetRailTypeInfo(railtype)->maintenance_multiplier * num * (1 + IntSqrt(total_num))) >> 11; // 4 bits fraction for the multiplier and 7 bits scaling. } /** |