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(svn r22206) -Revert-ish (r14526) / Unfix-ish [FS#3569] / Fix [FS#4545]: the "center" (for movement) of vehicles is (currently still) always at 4/8th original vehicle length from the front, so trains should stop at the same location regardless of the length of the front engine

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rubidium 2011-03-06 09:22:11 +00:00
parent e34c42de32
commit 18a9188081
1 changed files with 12 additions and 4 deletions
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16
src/train_cmd.cpp
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@ -313,8 +313,11 @@ int GetTrainStopLocation(StationID station_id, TileIndex tile, const Train *v, i
}
/* Subtract half the front vehicle length of the train so we get the real
* stop location of the train. */
return stop - (v->gcache.cached_veh_length + 1) / 2;
* stop location of the train.
* Actually, the center of all vehicles is half a normal vehicle's length
* from the front of the vehicle, so even in case the vehicle is 1/8th
* long, the center is still at 1/2 of VEHICLE_LENGTH. Basically FS#3569. */
return stop - VEHICLE_LENGTH / 2;
}
@ -3403,8 +3406,13 @@ static bool TrainApproachingLineEnd(Train *v, bool signal)
default: break;
}
/* do not reverse when approaching red signal */
if (!signal && x + (v->gcache.cached_veh_length + 1) / 2 >= TILE_SIZE) {
/* Do not reverse when approaching red signal. Make sure the vehicle's front
* does not cross the tile boundary when we do reverse, but as the vehicle's
* location is based on their center, use half a vehicle's length as offset.
* Actually, the center of all vehicles is half a normal vehicle's length
* from the front of the vehicle, so even in case the vehicle is 1/8th
* long, the center is still at 1/2 of VEHICLE_LENGTH. Basically FS#3569. */
if (!signal && x + VEHICLE_LENGTH / 2 >= TILE_SIZE) {
/* we are too near the tile end, reverse now */
v->cur_speed = 0;
ReverseTrainDirection(v);