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(svn r3570) - Explicitly update v->first in TrainConsistChanged() if necessary, as this is far faster than brute forcing it later.

release/0.5
peter1138 2006-02-07 18:55:06 +00:00
parent 6c0aa3a110
commit fbd78c8185
1 changed files with 3 additions and 0 deletions
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3
train_cmd.c
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@ -93,6 +93,9 @@ void TrainConsistChanged(Vehicle* v)
const RailVehicleInfo *rvi_u = RailVehInfo(u->engine_type); const RailVehicleInfo *rvi_u = RailVehInfo(u->engine_type);
uint16 veh_len; uint16 veh_len;
// Update the v->first cache. This is faster than having to brute force it later.
if (u->first == NULL) u->first = v;
// update the 'first engine' // update the 'first engine'
u->u.rail.first_engine = (v == u) ? INVALID_VEHICLE : first_engine; u->u.rail.first_engine = (v == u) ? INVALID_VEHICLE : first_engine;