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authorpeter1138 <peter1138@openttd.org>2007-02-23 09:56:20 +0000
committerpeter1138 <peter1138@openttd.org>2007-02-23 09:56:20 +0000
commit7e73413709b3f830d83338421298af5dc20581db (patch)
tree2fa52d1955fc03be8152cb9d7b298bfce4b80664 /src/cargotype.cpp
parent0ed4b64e649349f695a1942e0fa09b8b564e1774 (diff)
downloadopenttd-7e73413709b3f830d83338421298af5dc20581db.tar.xz
(svn r8858) -Codechange: Replace magic number test with class method for determining if a cargo is valid/active.
Diffstat (limited to 'src/cargotype.cpp')
-rw-r--r--src/cargotype.cpp6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/cargotype.cpp b/src/cargotype.cpp
index 0cfd7e2e9..28fbce38b 100644
--- a/src/cargotype.cpp
+++ b/src/cargotype.cpp
@@ -67,3 +67,9 @@ CargoID GetCargoIDByBitnum(byte bitnum)
assert(_cargo_bitnum_map[bitnum] != CT_INVALID);
return _cargo_bitnum_map[bitnum];
}
+
+
+bool CargoSpec::IsValid() const
+{
+ return bitnum != INVALID_CARGO;
+}