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(svn r23077) -Change: [NewGRF] Enforce that the default cargo type of a vehicle is one of the refittable cargos in case of refittable engines.

This commit is contained in:
frosch 2011-11-01 00:29:05 +00:00
parent be5fffd133
commit 1d1c9f44a1
1 changed files with 14 additions and 0 deletions
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14
src/newgrf.cpp
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@ -7948,6 +7948,7 @@ static void CalculateRefitMasks()
FOR_ALL_ENGINES(e) {
EngineID engine = e->index;
EngineInfo *ei = &e->info;
bool only_defaultcargo; ///< Set if the vehicle shall carry only the default cargo
/* Did the newgrf specify any refitting? If not, use defaults. */
if (_gted[engine].refitmask_valid) {
@ -7955,6 +7956,10 @@ static void CalculateRefitMasks()
uint32 not_mask = 0;
uint32 xor_mask = 0;
/* If the original masks set by the grf are zero, the vehicle shall only carry the default cargo.
* Note: After applying the translations, the vehicle may end up carrying no defined cargo. It becomes unavailable in that case. */
only_defaultcargo = (ei->refit_mask == 0 && _gted[engine].cargo_allowed == 0);
if (ei->refit_mask != 0) {
const GRFFile *file = _gted[engine].refitmask_grf;
if (file == NULL) file = e->GetGRF();
@ -8005,6 +8010,15 @@ static void CalculateRefitMasks()
}
ei->refit_mask = xor_mask & _cargo_mask;
/* If the mask is zero, the vehicle shall only carry the default cargo */
only_defaultcargo = (ei->refit_mask == 0);
}
/* Ensure that the vehicle is either not refittable, or that the default cargo is one of the refittable cargos.
* Note: Vehicles refittable to no cargo are handle differently to vehicle refittable to a single cargo. The latter might have subtypes. */
if (!only_defaultcargo && ei->cargo_type != CT_INVALID && !HasBit(ei->refit_mask, ei->cargo_type)) {
ei->cargo_type = CT_INVALID;
}
/* Check if this engine's cargo type is valid. If not, set to the first refittable