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(svn r20582) -Fix [FS#4044]: Autoreplace can trigger an assertion when at the vehicle limit

This commit is contained in:
rubidium 2010-08-20 17:35:10 +00:00
parent d6cd62e633
commit 79027229b9
1 changed files with 5 additions and 4 deletions
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9
src/train_cmd.cpp
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@ -1053,9 +1053,10 @@ static CommandCost CheckTrainAttachment(Train *t)
* @param dst The destination chain after constructing the train.
* @param original_dst The original source chain.
* @param dst The source chain after constructing the train.
* @param check_limit Whether to check the vehicle limit.
* @return possible error of this command.
*/
static CommandCost ValidateTrains(Train *original_dst, Train *dst, Train *original_src, Train *src)
static CommandCost ValidateTrains(Train *original_dst, Train *dst, Train *original_src, Train *src, bool check_limit)
{
/* Check whether we may actually construct the trains. */
CommandCost ret = CheckTrainAttachment(src);
@ -1064,7 +1065,7 @@ static CommandCost ValidateTrains(Train *original_dst, Train *dst, Train *origin
if (ret.Failed()) return ret;
/* Check whether we need to build a new train. */
return CheckNewTrain(original_dst, dst, original_src, src);
return check_limit ? CheckNewTrain(original_dst, dst, original_src, src) : CommandCost();
}
/**
@ -1235,7 +1236,7 @@ CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, u
/* If the autoreplace flag is set we do not need to test for the validity
* because we are going to revert the train to its original state. As we
* assume the original state was correct autoreplace can skip this. */
CommandCost ret = ValidateTrains(original_dst_head, dst_head, original_src_head, src_head);
CommandCost ret = ValidateTrains(original_dst_head, dst_head, original_src_head, src_head, true);
if (ret.Failed()) {
/* Restore the train we had. */
RestoreTrainBackup(original_src);
@ -1355,7 +1356,7 @@ CommandCost CmdSellRailWagon(DoCommandFlag flags, Vehicle *t, uint16 data, uint3
ArrangeTrains(&sell_head, NULL, &new_head, v, sell_chain);
/* We don't need to validate the second train; it's going to be sold. */
CommandCost ret = ValidateTrains(NULL, NULL, first, new_head);
CommandCost ret = ValidateTrains(NULL, NULL, first, new_head, (flags & DC_AUTOREPLACE) == 0);
if (ret.Failed()) {
/* Restore the train we had. */
RestoreTrainBackup(original);