/**
* Update the caches of this ship.
*/
void Ship::UpdateCache()
{
const ShipVehicleInfo *svi = ShipVehInfo(this->engine_type);
/* Get speed fraction for the current water type. Aqueducts are always canals. */
bool is_ocean = GetEffectiveWaterClass(this->tile) == WATER_CLASS_SEA;
uint raw_speed = GetVehicleProperty(this, PROP_SHIP_SPEED, svi->max_speed);
this->vcache.cached_max_speed = svi->ApplyWaterClassSpeedFrac(raw_speed, is_ocean);
/* Update cargo aging period. */
this->vcache.cached_cargo_age_period = GetVehicleProperty(this, PROP_SHIP_CARGO_AGE_PERIOD, EngInfo(this->engine_type)->cargo_age_period);
this->UpdateVisualEffect();
}
static bool ShipAccelerate(Vehicle *v)
{
uint spd;
byte t;
spd = min(v->cur_speed + 1, GetVehicleProperty(v, PROP_SHIP_SPEED, v->max_speed));
/* updates statusbar only if speed have changed to save CPU time */
if (spd != v->cur_speed) {
v->cur_speed = spd;
if (_settings_client.gui.vehicle_speed)
SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
}
/* Decrease somewhat when turning */
if (!(v->direction & 1)) spd = spd * 3 / 4;
if (spd == 0) return false;
if ((byte)++spd == 0) return true;
v->progress = (t = v->progress) - (byte)spd;
return (t < v->progress);
}
Money Ship::GetRunningCost() const
{
const Engine *e = this->GetEngine();
uint cost_factor = GetVehicleProperty(this, PROP_SHIP_RUNNING_COST_FACTOR, e->u.ship.running_cost);
return GetPrice(PR_RUNNING_SHIP, cost_factor, e->GetGRF());
}
Money Ship::GetRunningCost() const
{
const Engine *e = Engine::Get(this->engine_type);
uint cost_factor = GetVehicleProperty(this, PROP_SHIP_RUNNING_COST_FACTOR, e->u.ship.running_cost);
return GetPrice(PR_RUNNING_SHIP, cost_factor, e->grffile);
}
/**
* Update the caches of this ship.
*/
void Ship::UpdateCache()
{
this->vcache.cached_max_speed = GetVehicleProperty(this, PROP_SHIP_SPEED, ShipVehInfo(this->engine_type)->max_speed);
this->UpdateVisualEffect();
}
