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Codechange: Cache train curve speed limit can be stored in 16 bits.

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Cache curve speed modifier and max curve speed are both 16 bit values so can be stored in 16 bit types instead of 32 bit types.
This commit is contained in:
Peter Nelson
2024-03-14 20:40:32 +00:00
committed by Peter Nelson
parent f08da1d373
commit 3fc7b3b9a0
2 changed files with 7 additions and 9 deletions
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6
src/train_cmd.cpp
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@@ -120,7 +120,7 @@ void Train::ConsistChanged(ConsistChangeFlags allowed_changes)
this->compatible_railtypes = RAILTYPES_NONE;
bool train_can_tilt = true;
int min_curve_speed_mod = INT_MAX;
int16_t min_curve_speed_mod = INT16_MAX;
for (Train *u = this; u != nullptr; u = u->Next()) {
const RailVehicleInfo *rvi_u = RailVehInfo(u->engine_type);
@@ -305,7 +305,7 @@ int GetTrainStopLocation(StationID station_id, TileIndex tile, const Train *v, i
* Computes train speed limit caused by curves
* @return imposed speed limit
*/
int Train::GetCurveSpeedLimit() const
uint16_t Train::GetCurveSpeedLimit() const
{
assert(this->First() == this);
@@ -372,7 +372,7 @@ int Train::GetCurveSpeedLimit() const
max_speed = Clamp(max_speed, 2, absolute_max_speed);
}
return max_speed;
return static_cast<uint16_t>(max_speed);
}
/**