@@ -67,6 +67,14 @@ GRFConfig::GRFConfig(const GRFConfig &co
}
/**
* Return whether this NewGRF can replace an older version of the same NewGRF.
*/
bool GRFConfig::IsCompatible(uint32_t old_version) const
{
return this->min_loadable_version <= old_version && old_version <= this->version;
* Copy the parameter information from the \a src config.
* @param src Source config.
@@ -685,7 +693,7 @@ const GRFConfig *FindGRFConfig(uint32_t
/* Skip incompatible stuff, unless explicitly allowed */
if (mode != FGCM_NEWEST && HasBit(c->flags, GCF_INVALID)) continue;
/* check version compatibility */
if (mode == FGCM_COMPATIBLE && (c->version < desired_version || c->min_loadable_version > desired_version)) continue;
if (mode == FGCM_COMPATIBLE && !c->IsCompatible(desired_version)) continue;
/* remember the newest one as "the best" */
if (best == nullptr || c->version > best->version) best = c;