diff options
Diffstat (limited to 'src/cargotype.cpp')
| -rw-r--r-- | src/cargotype.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/cargotype.cpp b/src/cargotype.cpp index bea8edd65..6d8a2ca63 100644 --- a/src/cargotype.cpp +++ b/src/cargotype.cpp @@ -71,3 +71,21 @@ CargoID GetCargoIDByLabel(CargoLabel cl) /* No matching label was found, so it is invalid */ return CT_INVALID; } + + +/** Find the CargoID of a 'bitnum' value. + * @param bitnum 'bitnum' to find. + * @return First CargoID with the given bitnum, or CT_INVALID if not found. + */ +CargoID GetCargoIDByBitnum(uint8 bitnum) +{ + if (bitnum == INVALID_CARGO) return CT_INVALID; + + for (CargoID c = 0; c < lengthof(_cargo); c++) { + if (_cargo[c].bitnum == bitnum) return c; + } + + /* No matching label was found, so it is invalid */ + return CT_INVALID; +} + |