Mercurial > hg > openttd
changeset 7260:270b3009c7d3 draft
(svn r10572) -Codechange: Add function CheckIfCallBackAllowsAvailability for industries
author | belugas <belugas@openttd.org> |
---|---|
date | Sun, 15 Jul 2007 00:19:40 +0000 |
parents | bb4daf4d3593 |
children | 0f9108453415 |
files | src/newgrf_industries.cpp src/newgrf_industries.h |
diffstat | 2 files changed, 14 insertions(+), 0 deletions(-) [+] |
line wrap: on
line diff
--- a/src/newgrf_industries.cpp +++ b/src/newgrf_industries.cpp @@ -380,6 +380,19 @@ 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;
--- a/src/newgrf_industries.h +++ b/src/newgrf_industries.h @@ -14,6 +14,7 @@ uint32 GetIndustryIDAtOffset(TileIndex new_tile, TileIndex old_tile, const Industry *i); void IndustryProductionCallback(Industry *ind, int reason); bool CheckIfCallBackAllowsCreation(TileIndex tile, IndustryType type, uint itspec_index); +bool CheckIfCallBackAllowsAvailability(IndustryType type, IndustryAvailabilityCallType creation_type); IndustryType MapNewGRFIndustryType(IndustryType grf_type, uint32 grf_id);