diff options
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; |