diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/vehicle.cpp | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/vehicle.cpp b/src/vehicle.cpp index 471f5b8c9..2b33a73e8 100644 --- a/src/vehicle.cpp +++ b/src/vehicle.cpp @@ -1171,6 +1171,64 @@ CommandCost CmdDepotMassAutoReplace(TileIndex tile, DoCommandFlag flags, uint32 return cost; } +/** Clone the custom name of a vehicle, adding or incrementing a number. + * @param src Source vehicle, with a custom name. + * @param dst Destination vehicle. + */ +static void CloneVehicleName(const Vehicle *src, Vehicle *dst) +{ + char buf[256]; + + /* Find the position of the first digit in the last group of digits. */ + int number_position; + for (number_position = strlen(src->name); number_position > 0; number_position--) { + /* The design of UTF-8 lets this work simply without having to check + * for UTF-8 sequences. */ + if (src->name[number_position - 1] < '0' || src->name[number_position - 1] > '9') break; + } + + /* Format buffer and determine starting number. */ + int num; + if (number_position == strlen(src->name)) { + /* No digit at the end, so start at number 2. */ + strecpy(buf, src->name, lastof(buf)); + strecat(buf, " ", lastof(buf)); + number_position = strlen(buf); + num = 2; + } else { + /* Found digits, parse them and start at the next number. */ + strecpy(buf, src->name, lastof(buf)); + buf[number_position] = '\0'; + num = strtol(&src->name[number_position], NULL, 10) + 1; + } + + /* Check if this name is already taken. */ + for (int max_iterations = 1000; max_iterations > 0; max_iterations--, num++) { + /* Attach the number to the temporary name. */ + seprintf(&buf[number_position], lastof(buf), "%d", num); + bool dup = false; + + /* Check name against all other vehicles for this company. */ + const Vehicle *v; + FOR_ALL_VEHICLES(v) { + if (v->owner == src->owner && v->name != NULL) { + if (strcmp(buf, v->name) == 0) { + dup = true; + break; + } + } + } + + if (!dup) { + /* Name is not a duplicate, so assign it. */ + dst->name = strdup(buf); + break; + } + } + + /* All done. If we didn't find a name, it'll just use its default. */ +} + /** Clone a vehicle. If it is a train, it will clone all the cars too * @param tile tile of the depot where the cloned vehicle is build * @param flags type of operation @@ -1322,6 +1380,9 @@ CommandCost CmdCloneVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint * cargo types might not match (passenger vs non-passenger) */ DoCommand(0, (v_front->index << 16) | w_front->index, p2 & 1 ? CO_SHARE : CO_COPY, flags, CMD_CLONE_ORDER); + + /* Now clone the vehicle's name, if it has one. */ + if (v_front->name != NULL) CloneVehicleName(v_front, w_front); } /* Since we can't estimate the cost of cloning a vehicle accurately we must |