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/* $Id$ */
/** @file ai_engine.cpp Implementation of AIEngine. */
#include "ai_engine.hpp"
#include "ai_cargo.hpp"
#include "../../company_func.h"
#include "../../strings_func.h"
#include "../../aircraft.h"
#include "../../vehicle_func.h"
#include "../../settings_type.h"
#include "../../articulated_vehicles.h"
#include "table/strings.h"
/* static */ bool AIEngine::IsValidEngine(EngineID engine_id)
{
return ::IsEngineIndex(engine_id) && HasBit(::GetEngine(engine_id)->company_avail, _current_company);
}
/* static */ char *AIEngine::GetName(EngineID engine_id)
{
if (!IsValidEngine(engine_id)) return NULL;
static const int len = 64;
char *engine_name = MallocT<char>(len);
::SetDParam(0, engine_id);
::GetString(engine_name, STR_ENGINE_NAME, &engine_name[len - 1]);
return engine_name;
}
/* static */ CargoID AIEngine::GetCargoType(EngineID engine_id)
{
if (!IsValidEngine(engine_id)) return CT_INVALID;
switch (::GetEngine(engine_id)->type) {
case VEH_ROAD: {
const RoadVehicleInfo *vi = ::RoadVehInfo(engine_id);
return vi->cargo_type;
} break;
case VEH_TRAIN: {
const RailVehicleInfo *vi = ::RailVehInfo(engine_id);
return vi->cargo_type;
} break;
case VEH_SHIP: {
const ShipVehicleInfo *vi = ::ShipVehInfo(engine_id);
return vi->cargo_type;
} break;
case VEH_AIRCRAFT: {
return CT_PASSENGERS;
} break;
default: NOT_REACHED();
}
}
/* static */ bool AIEngine::CanRefitCargo(EngineID engine_id, CargoID cargo_id)
{
if (!IsValidEngine(engine_id)) return false;
if (!AICargo::IsValidCargo(cargo_id)) return false;
if (GetCargoType(engine_id) == cargo_id) return true;
if (cargo_id == CT_MAIL && ::GetEngine(engine_id)->type == VEH_AIRCRAFT) return true;
if (::GetEngine(engine_id)->type == VEH_SHIP && !ShipVehInfo(engine_id)->refittable) return false;
return ::CanRefitTo(engine_id, cargo_id);
}
/* static */ bool AIEngine::CanPullCargo(EngineID engine_id, CargoID cargo_id)
{
if (!IsValidEngine(engine_id)) return false;
if (GetVehicleType(engine_id) != AIVehicle::VT_RAIL) return false;
if (!AICargo::IsValidCargo(cargo_id)) return false;
return (::RailVehInfo(engine_id)->ai_passenger_only != 1) || AICargo::HasCargoClass(cargo_id, AICargo::CC_PASSENGERS);
}
/* static */ int32 AIEngine::GetCapacity(EngineID engine_id)
{
if (!IsValidEngine(engine_id)) return -1;
switch (::GetEngine(engine_id)->type) {
case VEH_ROAD:
case VEH_TRAIN: {
uint16 *capacities = GetCapacityOfArticulatedParts(engine_id, ::GetEngine(engine_id)->type);
for (CargoID c = 0; c < NUM_CARGO; c++) {
if (capacities[c] == 0) continue;
return capacities[c];
}
return -1;
} break;
case VEH_SHIP: {
const ShipVehicleInfo *vi = ::ShipVehInfo(engine_id);
return vi->capacity;
} break;
case VEH_AIRCRAFT: {
const AircraftVehicleInfo *vi = ::AircraftVehInfo(engine_id);
return vi->passenger_capacity;
} break;
default: NOT_REACHED();
}
}
/* static */ int32 AIEngine::GetReliability(EngineID engine_id)
{
if (!IsValidEngine(engine_id)) return -1;
return (::GetEngine(engine_id)->reliability * 100 >> 16);
}
/* static */ int32 AIEngine::GetMaxSpeed(EngineID engine_id)
{
if (!IsValidEngine(engine_id)) return -1;
const Engine *e = ::GetEngine(engine_id);
int32 max_speed = e->GetDisplayMaxSpeed(); // km-ish/h
if (e->type == VEH_AIRCRAFT) max_speed /= _settings_game.vehicle.plane_speed;
return max_speed;
}
/* static */ Money AIEngine::GetPrice(EngineID engine_id)
{
if (!IsValidEngine(engine_id)) return -1;
return ::GetEngine(engine_id)->GetCost();
}
/* static */ int32 AIEngine::GetMaxAge(EngineID engine_id)
{
if (!IsValidEngine(engine_id)) return -1;
return ::GetEngine(engine_id)->lifelength * DAYS_IN_LEAP_YEAR;
}
/* static */ Money AIEngine::GetRunningCost(EngineID engine_id)
{
if (!IsValidEngine(engine_id)) return -1;
return ::GetEngine(engine_id)->GetRunningCost();
}
/* static */ AIVehicle::VehicleType AIEngine::GetVehicleType(EngineID engine_id)
{
if (!IsValidEngine(engine_id)) return AIVehicle::VT_INVALID;
switch (::GetEngine(engine_id)->type) {
case VEH_ROAD: return AIVehicle::VT_ROAD;
case VEH_TRAIN: return AIVehicle::VT_RAIL;
case VEH_SHIP: return AIVehicle::VT_WATER;
case VEH_AIRCRAFT: return AIVehicle::VT_AIR;
default: NOT_REACHED();
}
}
/* static */ bool AIEngine::IsWagon(EngineID engine_id)
{
if (!IsValidEngine(engine_id)) return false;
if (GetVehicleType(engine_id) != AIVehicle::VT_RAIL) return false;
return ::RailVehInfo(engine_id)->power == 0;
}
/* static */ bool AIEngine::CanRunOnRail(EngineID engine_id, AIRail::RailType track_rail_type)
{
if (!IsValidEngine(engine_id)) return false;
if (GetVehicleType(engine_id) != AIVehicle::VT_RAIL) return false;
if (!AIRail::IsRailTypeAvailable(track_rail_type)) return false;
return ::IsCompatibleRail((::RailType)::RailVehInfo(engine_id)->railtype, (::RailType)track_rail_type);
}
/* static */ bool AIEngine::HasPowerOnRail(EngineID engine_id, AIRail::RailType track_rail_type)
{
if (!IsValidEngine(engine_id)) return false;
if (GetVehicleType(engine_id) != AIVehicle::VT_RAIL) return false;
if (!AIRail::IsRailTypeAvailable(track_rail_type)) return false;
return ::HasPowerOnRail((::RailType)::RailVehInfo(engine_id)->railtype, (::RailType)track_rail_type);
}
/* static */ AIRoad::RoadType AIEngine::GetRoadType(EngineID engine_id)
{
if (!IsValidEngine(engine_id)) return AIRoad::ROADTYPE_INVALID;
if (GetVehicleType(engine_id) != AIVehicle::VT_ROAD) return AIRoad::ROADTYPE_INVALID;
return HasBit(::EngInfo(engine_id)->misc_flags, EF_ROAD_TRAM) ? AIRoad::ROADTYPE_TRAM : AIRoad::ROADTYPE_ROAD;
}
/* static */ AIRail::RailType AIEngine::GetRailType(EngineID engine_id)
{
if (!IsValidEngine(engine_id)) return AIRail::RAILTYPE_INVALID;
if (GetVehicleType(engine_id) != AIVehicle::VT_RAIL) return AIRail::RAILTYPE_INVALID;
return (AIRail::RailType)(uint)::RailVehInfo(engine_id)->railtype;
}
/* static */ bool AIEngine::IsArticulated(EngineID engine_id)
{
if (!IsValidEngine(engine_id)) return false;
if (GetVehicleType(engine_id) != AIVehicle::VT_ROAD && GetVehicleType(engine_id) != AIVehicle::VT_RAIL) return false;
return CountArticulatedParts(engine_id, true) != 0;
}
/* static */ AIAirport::PlaneType AIEngine::GetPlaneType(EngineID engine_id)
{
if (!IsValidEngine(engine_id)) return AIAirport::PT_INVALID;
if (GetVehicleType(engine_id) != AIVehicle::VT_AIR) return AIAirport::PT_INVALID;
return (AIAirport::PlaneType)::AircraftVehInfo(engine_id)->subtype;
}
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