diff options
| -rw-r--r-- | src/rail.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/rail.h b/src/rail.h index 7e3cd4b75..f90105242 100644 --- a/src/rail.h +++ b/src/rail.h @@ -183,7 +183,8 @@ static inline Money RailConvertCost(RailType from, RailType to) * (the price of workers to get to place is that 1/4) */ if (HasPowerOnRail(from, to)) { - return ((RailBuildCost(to) - RailBuildCost(from)) * 5) >> 2; + Money cost = ((RailBuildCost(to) - RailBuildCost(from)) * 5) >> 2; + if (cost != 0) return cost; } /* el. rail -> rail @@ -191,7 +192,8 @@ static inline Money RailConvertCost(RailType from, RailType to) * (the price of workers is 1 / 4 + price of copper sold to a recycle center) */ if (HasPowerOnRail(to, from)) { - return (RailBuildCost(from) - RailBuildCost(to)) >> 2; + Money cost = (RailBuildCost(from) - RailBuildCost(to)) >> 2; + if (cost != 0) return cost; } /* make the price the same as remove + build new type */ |