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(svn r23502) -Fix (r23143): Vehicle var 42 used a cargo translation table of the wrong GRF.

This commit is contained in:
frosch 2011-12-12 19:30:36 +00:00
parent 89854e0ab1
commit 44dc83b73f
2 changed files with 16 additions and 8 deletions
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22
src/newgrf_engine.cpp
View File

@ -481,7 +481,7 @@ static uint32 VehicleGetVariable(Vehicle *v, const ResolverObject *object, byte
}
return v->grf_cache.position_same_id_length;
case 0x42: // Consist cargo information
case 0x42: { // Consist cargo information
if (!HasBit(v->grf_cache.cache_valid, NCVV_CONSIST_CARGO_INFORMATION)) {
const Vehicle *u;
byte cargo_classes = 0;
@ -531,14 +531,22 @@ static uint32 VehicleGetVariable(Vehicle *v, const ResolverObject *object, byte
}
}
/* Unlike everywhere else the cargo translation table is only used since grf version 8, not 7. */
const GRFFile *grffile = v->GetGRF();
uint8 common_bitnum = (common_cargo_type == CT_INVALID) ? 0xFF :
(grffile->grf_version < 8) ? CargoSpec::Get(common_cargo_type)->bitnum : grffile->cargo_map[common_cargo_type];
v->grf_cache.consist_cargo_information = cargo_classes | (common_bitnum << 8) | (common_subtype << 16) | (user_def_data << 24);
/* Note: We have to store the untranslated cargotype in the cache as the cache can be read by different NewGRFs,
* which will need different translations */
v->grf_cache.consist_cargo_information = cargo_classes | (common_cargo_type << 8) | (common_subtype << 16) | (user_def_data << 24);
SetBit(v->grf_cache.cache_valid, NCVV_CONSIST_CARGO_INFORMATION);
}
return v->grf_cache.consist_cargo_information;
/* The cargo translation is specific to the accessing GRF, and thus cannot be cached. */
CargoID common_cargo_type = (v->grf_cache.consist_cargo_information >> 8) & 0xFF;
/* Unlike everywhere else the cargo translation table is only used since grf version 8, not 7. */
const GRFFile *grffile = object->grffile;
uint8 common_bitnum = (common_cargo_type == CT_INVALID) ? 0xFF :
(grffile->grf_version < 8) ? CargoSpec::Get(common_cargo_type)->bitnum : grffile->cargo_map[common_cargo_type];
return (v->grf_cache.consist_cargo_information & 0xFFFF00FF) | common_bitnum << 8;
}
case 0x43: // Company information
if (!HasBit(v->grf_cache.cache_valid, NCVV_COMPANY_INFORMATION)) {

2
src/vehicle_base.h
View File

@ -60,7 +60,7 @@ struct NewGRFCache {
/* Values calculated when they are requested for the first time after invalidating the NewGRF cache. */
uint32 position_consist_length; ///< Cache for NewGRF var 40.
uint32 position_same_id_length; ///< Cache for NewGRF var 41.
uint32 consist_cargo_information; ///< Cache for NewGRF var 42.
uint32 consist_cargo_information; ///< Cache for NewGRF var 42. (Note: The cargotype is untranslated in the cache because the accessing GRF is yet unknown.)
uint32 company_information; ///< Cache for NewGRF var 43.
uint8 cache_valid; ///< Bitset that indicates which cache values are valid.
};