Esempio n. 1
0
/**
 * 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();
}
Esempio n. 2
0
	/**
	 * Called by YAPF to calculate the cost from the origin to the given node.
	 *  Calculates only the cost of given node, adds it to the parent node cost
	 *  and stores the result into Node::m_cost member
	 */
	inline bool PfCalcCost(Node& n, const TrackFollower *tf)
	{
		/* base tile cost depending on distance */
		int c = IsDiagonalTrackdir(n.GetTrackdir()) ? YAPF_TILE_LENGTH : YAPF_TILE_CORNER_LENGTH;
		/* additional penalty for curves */
		if (n.GetTrackdir() != NextTrackdir(n.m_parent->GetTrackdir())) {
			/* new trackdir does not match the next one when going straight */
			c += YAPF_TILE_LENGTH;
		}

		/* Skipped tile cost for aqueducts. */
		c += YAPF_TILE_LENGTH * tf->m_tiles_skipped;

		/* Ocean/canal speed penalty. */
		const ShipVehicleInfo *svi = ShipVehInfo(Yapf().GetVehicle()->engine_type);
		byte speed_frac = (GetEffectiveWaterClass(n.GetTile()) == WATER_CLASS_SEA) ? svi->ocean_speed_frac : svi->canal_speed_frac;
		if (speed_frac > 0) c += YAPF_TILE_LENGTH * (1 + tf->m_tiles_skipped) * speed_frac / (256 - speed_frac);

		/* apply it */
		n.m_cost = n.m_parent->m_cost + c;
		return true;
	}
Esempio n. 3
0
static void PlayShipSound(const Vehicle *v)
{
	if (!PlayVehicleSound(v, VSE_START)) {
		SndPlayVehicleFx(ShipVehInfo(v->engine_type)->sfx, v);
	}
}
Esempio n. 4
0
/**
 * 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();
}