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author | belugas <belugas@openttd.org> | 2007-07-15 00:19:40 +0000 |
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committer | belugas <belugas@openttd.org> | 2007-07-15 00:19:40 +0000 |
commit | 318f19f5a45773848ec2d9efce33840e5c41d56e (patch) | |
tree | 2708f4399b0d84a608adcc1e9af729210767f270 /src/newgrf_industries.cpp | |
parent | 6d22aa54cfda4531d918694d873db3e4b8aa5480 (diff) | |
download | openttd-318f19f5a45773848ec2d9efce33840e5c41d56e.tar.xz |
(svn r10572) -Codechange: Add function CheckIfCallBackAllowsAvailability for industries
Diffstat (limited to 'src/newgrf_industries.cpp')
-rw-r--r-- | src/newgrf_industries.cpp | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/newgrf_industries.cpp b/src/newgrf_industries.cpp index b9437531d..11b1ad279 100644 --- a/src/newgrf_industries.cpp +++ b/src/newgrf_industries.cpp @@ -380,6 +380,19 @@ bool CheckIfCallBackAllowsCreation(TileIndex tile, IndustryType type, uint itspe return false; } +bool CheckIfCallBackAllowsAvailability(IndustryType type, IndustryAvailabilityCallType creation_type) +{ + const IndustrySpec *indspec = GetIndustrySpec(type); + + if (HASBIT(indspec->callback_flags, CBM_IND_AVAILABLE)) { + uint16 res = GetIndustryCallback(CBID_INDUSTRY_AVAILABLE, 0, creation_type, NULL, type, INVALID_TILE); + if (res != CALLBACK_FAILED) { + return (res == 0); + } + } + return true; +} + static int32 DerefIndProd(uint field, bool use_register) { return use_register ? (int32)GetRegister(field) : field; |