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Diffstat (limited to 'src/ai/api/ai_engine.hpp')
| -rw-r--r-- | src/ai/api/ai_engine.hpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/ai/api/ai_engine.hpp b/src/ai/api/ai_engine.hpp index 7e49558a1..6fe865327 100644 --- a/src/ai/api/ai_engine.hpp +++ b/src/ai/api/ai_engine.hpp @@ -91,7 +91,9 @@ public: * @param engine_id The engine to get the maximum speed of. * @pre IsValidEngine(engine_id). * @return The maximum speed the engine has. - * @note The 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 GetMaxSpeed(EngineID engine_id); |