diff options
Diffstat (limited to 'train_cmd.c')
| -rw-r--r-- | train_cmd.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/train_cmd.c b/train_cmd.c index 909294b79..aeb2079dd 100644 --- a/train_cmd.c +++ b/train_cmd.c @@ -773,7 +773,17 @@ int32 CmdSellRailWagon(int x, int y, uint32 flags, uint32 p1, uint32 p2) first = v; if (first->subtype != 0) { first = GetFirstVehicleInChain(first); - last = NULL; + last = GetLastVehicleInChain(first); + //now if: + // 1) we delete a whole a chain, and + // 2) the first and the last vehicle of that train are of the same type, and + // 3) the first and the last vehicle of the chain are not identical, and + // 4) and of "engine" type (i.e. not a carriage) + // then let the last vehicle live + if ( (p2 == 1) && ( last->engine_type == first->engine_type ) && (last != first) && (first->subtype == 0) ) + last = GetPrevVehicleInChain(last); + else + last = NULL; } else { if (p2 != 1) { // sell last part of multiheaded? @@ -825,7 +835,7 @@ int32 CmdSellRailWagon(int x, int y, uint32 flags, uint32 p1, uint32 p2) tmp = v; v = v->next; DeleteVehicle(tmp); - if (v == NULL || p2 != 1) break; + if (v == last || p2 != 1) break; } // delete last vehicle of multiheaded train? @@ -844,7 +854,7 @@ int32 CmdSellRailWagon(int x, int y, uint32 flags, uint32 p1, uint32 p2) cost = 0; for(;;) { cost -= v->value; - if ((v=v->next) == NULL || p2 != 1) break; + if ((v=v->next) == last || p2 != 1) break; } if (last) cost -= last->value; } |