(svn r12431) [NoAI] -Add: added AIEventSubsidiaryOffer, which keeps you informed about new Subsidiaries
/* $Id$ */
/** @file ai_engine.cpp handles the functions of the AIEngine class */
#include "ai_engine.hpp"
#include "ai_cargo.hpp"
#include "../../engine.h"
#include "../../player_func.h"
#include "../../strings_func.h"
#include "../../roadveh.h"
#include "../../train.h"
#include "../../ship.h"
#include "../../aircraft.h"
#include "../../cargotype.h"
#include "../../vehicle_func.h"
#include "../../core/alloc_func.hpp"
#include "../../economy_func.h"
#include "../../core/bitmath_func.hpp"
#include "../../settings_type.h"
#include "table/strings.h"
/* static */ bool AIEngine::IsValidEngine(EngineID engine_id)
{
return ::IsEngineIndex(engine_id) && HasBit(::GetEngine(engine_id)->player_avail, _current_player);
}
/* 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 0;
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;
return ::CanRefitTo(engine_id, cargo_id);
}
/* static */ uint32 AIEngine::GetCapacity(EngineID engine_id)
{
if (!IsValidEngine(engine_id)) return 0;
switch (::GetEngine(engine_id)->type) {
case VEH_ROAD: {
const RoadVehicleInfo *vi = ::RoadVehInfo(engine_id);
return vi->capacity;
} break;
case VEH_TRAIN: {
const RailVehicleInfo *vi = ::RailVehInfo(engine_id);
return vi->capacity;
} 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 */ uint32 AIEngine::GetReliability(EngineID engine_id)
{
if (!IsValidEngine(engine_id)) return 0;
return (::GetEngine(engine_id)->reliability * 100 >> 16);
}
/* static */ uint32 AIEngine::GetMaxSpeed(EngineID engine_id)
{
if (!IsValidEngine(engine_id)) return 0;
switch (::GetEngine(engine_id)->type) {
case VEH_ROAD: {
const RoadVehicleInfo *vi = ::RoadVehInfo(engine_id);
/* Internal speeds are km/h * 2 */
return vi->max_speed / 2;
} break;
case VEH_TRAIN: {
const RailVehicleInfo *vi = ::RailVehInfo(engine_id);
return vi->max_speed;
} break;
case VEH_SHIP: {
const ShipVehicleInfo *vi = ::ShipVehInfo(engine_id);
/* Internal speeds are km/h * 2 */
return vi->max_speed / 2;
} break;
case VEH_AIRCRAFT: {
const AircraftVehicleInfo *vi = ::AircraftVehInfo(engine_id);
return vi->max_speed / _patches.plane_speed;
} break;
default: NOT_REACHED();
}
}
/* static */ uint32 AIEngine::GetPrice(EngineID engine_id)
{
if (!IsValidEngine(engine_id)) return 0;
switch (::GetEngine(engine_id)->type) {
case VEH_ROAD: {
const RoadVehicleInfo *vi = ::RoadVehInfo(engine_id);
return (_price.roadveh_base >> 3) * vi->base_cost >> 5;
} break;
case VEH_TRAIN: {
const RailVehicleInfo *vi = ::RailVehInfo(engine_id);
return (_price.build_railvehicle >> 3) * vi->base_cost >> 5;
} break;
case VEH_SHIP: {
const ShipVehicleInfo *vi = ::ShipVehInfo(engine_id);
return (_price.ship_base >> 3) * vi->base_cost >> 5;
} break;
case VEH_AIRCRAFT: {
const AircraftVehicleInfo *vi = ::AircraftVehInfo(engine_id);
return (_price.aircraft_base >> 3) * vi->base_cost >> 5;
} break;
default: NOT_REACHED();
}
}
/* static */ uint32 AIEngine::GetMaxAge(EngineID engine_id)
{
if (!IsValidEngine(engine_id)) return 0;
return ::GetEngine(engine_id)->lifelength * 366;
}
/* static */ Money AIEngine::GetRunningCost(EngineID engine_id)
{
if (!IsValidEngine(engine_id)) return 0;
/* We need to create an instance in order to obtain GetRunningCost.
* This means we temporary allocate a vehicle in the pool, but
* there is no other way.. */
Vehicle *vehicle;
switch (::GetEngine(engine_id)->type) {
case VEH_ROAD: {
vehicle = new RoadVehicle();
} break;
case VEH_TRAIN: {
vehicle = new Train();
} break;
case VEH_SHIP: {
vehicle = new Ship();
} break;
case VEH_AIRCRAFT: {
vehicle = new Aircraft();
} break;
default: NOT_REACHED();
}
vehicle->engine_type = engine_id;
Money runningCost = vehicle->GetRunningCost();
delete vehicle;
return runningCost >> 8;
}
/* static */ AIVehicle::VehicleType AIEngine::GetVehicleType(EngineID engine_id)
{
if (!IsValidEngine(engine_id)) return AIVehicle::VEHICLE_INVALID;
switch (::GetEngine(engine_id)->type) {
case VEH_ROAD: return AIVehicle::VEHICLE_ROAD;
case VEH_TRAIN: return AIVehicle::VEHICLE_RAIL;
case VEH_SHIP: return AIVehicle::VEHICLE_WATER;
case VEH_AIRCRAFT: return AIVehicle::VEHICLE_AIR;
default: NOT_REACHED();
}
}