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-rw-r--r--src/train.h20
-rw-r--r--src/train_cmd.cpp14
2 files changed, 26 insertions, 8 deletions
diff --git a/src/train.h b/src/train.h
index aadb48981..70eed6854 100644
--- a/src/train.h
+++ b/src/train.h
@@ -70,6 +70,7 @@ struct AccelerationCache {
uint32 cached_power; ///< total power of the consist.
uint32 cached_air_drag; ///< Air drag coefficient of the vehicle
uint16 cached_axle_resistance; ///< Resistance caused by the axles of the vehicle
+ uint16 cached_max_track_speed; ///< Max consist speed limited by track type
};
/** Variables that are cached to improve performance and such */
@@ -86,7 +87,6 @@ struct TrainCache : public AccelerationCache {
/* cached max. speed / acceleration data */
uint16 cached_max_speed; ///< max speed of the consist. (minimum of the max speed of all vehicles in the consist)
- uint16 cached_max_rail_speed; ///< max consist speed limited by rail type
int cached_max_curve_speed; ///< max consist speed limited by curves
/**
@@ -512,6 +512,24 @@ protected: // These functions should not be called outside acceleration code.
{
return 20 * _settings_game.vehicle.train_slope_steepness; // 1% slope * slope steepness
}
+
+ /**
+ * Gets the maximum speed of the vehicle, ignoring the limitations of the kind of track the vehicle is on.
+ * @return Maximum speed of the vehicle.
+ */
+ FORCEINLINE uint16 GetInitialMaxSpeed() const
+ {
+ return this->tcache.cached_max_speed;
+ }
+
+ /**
+ * Gets the maximum speed allowed by the track for this vehicle.
+ * @return Maximum speed allowed.
+ */
+ FORCEINLINE uint16 GetMaxTrackSpeed() const
+ {
+ return GetRailTypeInfo(GetRailType(this->tile))->max_speed;
+ }
};
#define FOR_ALL_TRAINS(var) FOR_ALL_VEHICLES_OF_TYPE(Train, var)
diff --git a/src/train_cmd.cpp b/src/train_cmd.cpp
index c0575f9ec..86db9bfe8 100644
--- a/src/train_cmd.cpp
+++ b/src/train_cmd.cpp
@@ -99,7 +99,7 @@ void Train::PowerChanged()
uint32 total_power = 0;
uint32 max_te = 0;
uint32 number_of_parts = 0;
- uint16 max_rail_speed = this->tcache.cached_max_speed;
+ uint16 max_track_speed = this->GetInitialMaxSpeed();
for (const Train *u = this; u != NULL; u = u->Next()) {
uint32 current_power = u->GetPower();
@@ -110,9 +110,9 @@ void Train::PowerChanged()
total_power += u->GetPoweredPartPower(this);
number_of_parts++;
- /* Get minimum max speed for rail */
- uint16 rail_speed = GetRailTypeInfo(GetRailType(u->tile))->max_speed;
- if (rail_speed > 0) max_rail_speed = min(max_rail_speed, rail_speed);
+ /* Get minimum max speed for this track */
+ uint16 track_speed = u->GetMaxTrackSpeed();
+ if (track_speed > 0) max_track_speed = min(max_track_speed, track_speed);
}
this->tcache.cached_axle_resistance = 60 * number_of_parts;
@@ -130,7 +130,7 @@ void Train::PowerChanged()
SetWindowWidgetDirty(WC_VEHICLE_VIEW, this->index, VVW_WIDGET_START_STOP_VEH);
}
- this->tcache.cached_max_rail_speed = max_rail_speed;
+ this->tcache.cached_max_track_speed = max_track_speed;
}
@@ -498,7 +498,7 @@ int Train::GetCurrentMaxSpeed() const
}
}
- return min(max_speed, this->tcache.cached_max_rail_speed);
+ return min(max_speed, this->tcache.cached_max_track_speed);
}
/**
@@ -564,7 +564,7 @@ void Train::UpdateAcceleration()
{
assert(this->IsFrontEngine());
- this->max_speed = this->tcache.cached_max_rail_speed;
+ this->max_speed = this->tcache.cached_max_track_speed;
uint power = this->tcache.cached_power;
uint weight = this->tcache.cached_weight;