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(svn r18494) -Fix (r18474): crash when moving non-engine to new free wagon chain and group count was off when moving a front engine within the same train and the new front isn't an engine.

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rubidium 2009-12-13 22:17:12 +00:00
parent 8b9a2218de
commit c2ec2e2db3
2 changed files with 8 additions and 3 deletions
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2
src/group_cmd.cpp
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@ -373,7 +373,7 @@ void SetTrainGroupID(Train *v, GroupID new_g)
{
if (!Group::IsValidID(new_g) && !IsDefaultGroupID(new_g)) return;
assert(v->IsFrontEngine());
assert(v->IsFrontEngine() || IsDefaultGroupID(new_g));
for (Vehicle *u = v; u != NULL; u = u->Next()) {
if (u->IsEngineCountable()) UpdateNumEngineGroup(u->engine_type, u->group_id, new_g);

9
src/train_cmd.cpp
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@ -1441,8 +1441,13 @@ CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, u
/* We are going to be move to another train. So we
* are no part of this group anymore. In case we
* are not moving group... well, then we do not need
* to move. */
if (dst_head != NULL && dst_head != src) DecreaseGroupNumVehicle(src->group_id);
* to move.
* Or we are moving to later in the train and our
* new head isn't a front engine anymore.
*/
if (dst_head != NULL ? dst_head != src : !src_head->IsFrontEngine()) {
DecreaseGroupNumVehicle(src->group_id);
}
/* Delete orders, group stuff and the unit number as we're not the
* front of any vehicle anymore. */