Method GetVariable

src/newgrf_engine.cpp:972–1009

virtual */

}

/* virtual */ uint32_t VehicleScopeResolver::GetVariable(uint8_t variable, [[maybe_unused]] uint32_t parameter, bool &available) const
{
	if (this->v == nullptr) {
		/* Vehicle does not exist, so we're in a purchase list */
		switch (variable) {
			case 0x43: return GetCompanyInfo(_current_company, LiveryHelper(this->self_type, nullptr)); // Owner information
			case 0x46: return 0;               // Motion counter
			case 0x47: { // Vehicle cargo info
				const Engine *e = Engine::Get(this->self_type);
				CargoType cargo_type = e->GetDefaultCargoType();
				if (IsValidCargoType(cargo_type)) {
					const CargoSpec *cs = CargoSpec::Get(cargo_type);
					return (cs->classes.base() << 16) | (cs->weight << 8) | this->ro.grffile->cargo_map[cargo_type];
				} else {
					return 0x000000FF;
				}
			}
			case 0x48: return Engine::Get(this->self_type)->flags.base(); // Vehicle Type Info
			case 0x49: return TimerGameCalendar::year.base(); // 'Long' format build year
			case 0x4B: return TimerGameCalendar::date.base(); // Long date of last service

			case 0x7A: return GetBadgeVariableResult(*this->ro.grffile, Engine::Get(this->self_type)->badges, parameter);

			case 0x92: return ClampTo<uint16_t>(TimerGameCalendar::date - CalendarTime::DAYS_TILL_ORIGINAL_BASE_YEAR); // Date of last service
			case 0x93: return GB(ClampTo<uint16_t>(TimerGameCalendar::date - CalendarTime::DAYS_TILL_ORIGINAL_BASE_YEAR), 8, 8);
			case 0xC4: return (Clamp(TimerGameCalendar::year, CalendarTime::ORIGINAL_BASE_YEAR, CalendarTime::ORIGINAL_MAX_YEAR) - CalendarTime::ORIGINAL_BASE_YEAR).base(); // Build year
			case 0xC6: return Engine::Get(this->self_type)->grf_prop.local_id;
			case 0xC7: return GB(Engine::Get(this->self_type)->grf_prop.local_id, 8, 8);
			case 0xDA: return VehicleID::Invalid().base(); // Next vehicle
			case 0xF2: return 0; // Cargo subtype
		}

		available = false;
		return UINT_MAX;
	}

	return VehicleGetVariable(const_cast<Vehicle*>(this->v), this, variable, parameter, available);
}


/* virtual */ const SpriteGroup *VehicleResolverObject::ResolveReal(const RealSpriteGroup &group) const