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Diffstat (limited to 'src/ai/api/ai_vehicle.hpp')
| -rw-r--r-- | src/ai/api/ai_vehicle.hpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/ai/api/ai_vehicle.hpp b/src/ai/api/ai_vehicle.hpp index f0be433da..961a451d3 100644 --- a/src/ai/api/ai_vehicle.hpp +++ b/src/ai/api/ai_vehicle.hpp @@ -205,7 +205,9 @@ public: * @param vehicle_id The vehicle to get the age of. * @pre IsValidVehicle(vehicle_id). * @return The current speed of the vehicle. - * @note Speed is in km/h. + * @note The speed is in OpenTTD's internal speed unit. + * This is mph / 1.6, which is roughly km/h. + * To get km/h multiply this number by 1.00584. */ static int32 GetCurrentSpeed(VehicleID vehicle_id); |