diff options
Diffstat (limited to 'src/water.h')
| -rw-r--r-- | src/water.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/water.h b/src/water.h index 56bd92fde..bf26cf90d 100644 --- a/src/water.h +++ b/src/water.h @@ -16,6 +16,8 @@ #include "company_type.h" #include "slope_type.h" #include "water_map.h" +#include "economy_func.h" +#include "core/math_func.hpp" /** * Describes the behaviour of a tile during flooding. @@ -43,4 +45,14 @@ void MakeWaterKeepingClass(TileIndex tile, Owner o); bool RiverModifyDesertZone(TileIndex tile, void *data); +/** + * Calculates the maintenance cost of a number of canal tiles. + * @param num Number of canal tiles. + * @return Total cost. + */ +static inline Money CanalMaintenanceCost(uint32 num) +{ + return (_price[PR_INFRASTRUCTURE_WATER] * num * (1 + IntSqrt(num))) >> 6; // 6 bits scaling. +} + #endif /* WATER_H */ |