// calculate a cache entry for the vessel
static vessel_info Compute(Vessel v)
{
vessel_info info = new vessel_info();
info.position = Lib.VesselPosition(v);
info.sunlight = Sim.RaytraceBody(v, Sim.Sun(), out info.sun_dir, out info.sun_dist);
info.temperature = Sim.Temperature(v, info.sunlight);
info.cosmic_radiation = Radiation.CosmicRadiation(v);
info.belt_radiation = Radiation.BeltRadiation(v);
info.storm_radiation = Radiation.StormRadiation(v, info.sunlight);
info.env_radiation = info.cosmic_radiation + info.belt_radiation + info.storm_radiation;
info.breathable = Sim.Breathable(v);
foreach(var p in Kerbalism.rules)
{
Rule r = p.Value;
if (r.resource_name.Length > 0)
{
var vmon = new vmon_cache();
vmon.depletion = r.EstimateLifetime(v);
double amount = Lib.GetResourceAmount(v, r.resource_name);
double capacity = Lib.GetResourceCapacity(v, r.resource_name);
vmon.level = capacity > double.Epsilon ? amount / capacity : 1.0; //< level is 1 with no capacity
info.vmon.Add(p.Value.name, vmon);
}
}
return info;
}
// get vessel info from the cache, or compute a new one and add it to the cache
public static vessel_info VesselInfo(Vessel v)
{
// get the info from the cache, if it exist
vessel_info info;
if (instance.vessels.TryGetValue(v.id, out info)) return info;
// compute vessel info
info = new vessel_info();
info.position = Lib.VesselPosition(v);
info.sunlight = Sim.RaytraceBody(v, Sim.Sun(), out info.sun_dir, out info.sun_dist);
info.temperature = Sim.Temperature(v, info.sunlight);
info.cosmic_radiation = Radiation.CosmicRadiation(v);
info.belt_radiation = Radiation.BeltRadiation(v);
info.storm_radiation = Radiation.StormRadiation(v, info.sunlight);
info.radiation = (info.cosmic_radiation + info.belt_radiation + info.storm_radiation) * (1.0 - Radiation.Shielding(v));
// store vessel info in the cache
instance.vessels.Add(v.id, info);
// return the vessel info
return info;
}
public Vessel_info(Vessel v, UInt64 vessel_id, UInt64 inc)
{
// NOTE: anything used here can't in turn use cache, unless you know what you are doing
// NOTE: you can't cache vessel position
// at any point in time all vessel/body positions are relative to a different frame of reference
// so comparing the current position of a vessel, with the cached one of another make no sense
// associate with an unique incremental id
this.inc = inc;
// determine if this is a valid vessel
is_vessel = Lib.IsVessel(v);
if (!is_vessel)
{
return;
}
// determine if this is a rescue mission vessel
is_rescue = Misc.IsRescueMission(v);
if (is_rescue)
{
return;
}
// dead EVA are not valid vessels
if (EVA.IsDead(v))
{
return;
}
// shortcut for common tests
is_valid = true;
// generate id once
id = vessel_id;
// calculate crew info for the vessel
crew_count = Lib.CrewCount(v);
crew_capacity = Lib.CrewCapacity(v);
// get vessel position
Vector3d position = Lib.VesselPosition(v);
// this should never happen again
if (Vector3d.Distance(position, v.mainBody.position) < 1.0)
{
throw new Exception("Shit hit the fan for vessel " + v.vesselName);
}
// determine if there is enough EC for a powered state
powered = ResourceCache.Info(v, "ElectricCharge").amount > double.Epsilon;
// determine if in sunlight, calculate sun direction and distance
sunlight = Sim.RaytraceBody(v, position, FlightGlobals.Bodies[0], out sun_dir, out sun_dist) ? 1.0 : 0.0;
// environment stuff
atmo_factor = Sim.AtmosphereFactor(v.mainBody, position, sun_dir);
gamma_transparency = Sim.GammaTransparency(v.mainBody, v.altitude);
underwater = Sim.Underwater(v);
breathable = Sim.Breathable(v, underwater);
landed = Lib.Landed(v);
zerog = !landed && (!v.mainBody.atmosphere || v.mainBody.atmosphereDepth < v.altitude);
if (v.mainBody.flightGlobalsIndex != 0 && TimeWarp.CurrentRate > 1000.0f)
{
highspeedWarp(v);
}
// temperature at vessel position
temperature = Sim.Temperature(v, position, sunlight, atmo_factor, out solar_flux, out albedo_flux, out body_flux, out total_flux);
temp_diff = Sim.TempDiff(temperature, v.mainBody, landed);
// radiation
radiation = Radiation.Compute(v, position, gamma_transparency, sunlight, out blackout, out magnetosphere, out inner_belt, out outer_belt, out interstellar);
// extended atmosphere
thermosphere = Sim.InsideThermosphere(v);
exosphere = Sim.InsideExosphere(v);
// malfunction stuff
malfunction = Reliability.HasMalfunction(v);
critical = Reliability.HasCriticalFailure(v);
// communications info
connection = new ConnectionInfo(v, powered, blackout);
transmitting = Science.Transmitting(v, connection.linked && connection.rate > double.Epsilon);
// habitat data
volume = Habitat.Tot_volume(v);
surface = Habitat.Tot_surface(v);
pressure = Habitat.Pressure(v);
evas = (uint)(Math.Max(0, ResourceCache.Info(v, "Nitrogen").amount - 330) / PreferencesLifeSupport.Instance.evaAtmoLoss);
poisoning = Habitat.Poisoning(v);
humidity = Habitat.Humidity(v);
shielding = Habitat.Shielding(v);
living_space = Habitat.Living_space(v);
volume_per_crew = Habitat.Volume_per_crew(v);
comforts = new Comforts(v, landed, crew_count > 1, connection.linked && connection.rate > double.Epsilon);
// data about greenhouses
greenhouses = Greenhouse.Greenhouses(v);
// other stuff
gravioli = Sim.Graviolis(v);
}
// build the visibility caches
void BuildVisibility()
{
// get home body
CelestialBody home = FlightGlobals.GetHomeBody();
// build direct visibility cache
direct_visibility_cache.Clear();
foreach (Vessel v in FlightGlobals.Vessels)
{
// skip invalid vessels
if (!Lib.IsVessel(v))
{
continue;
}
// get antenna data
antenna_data ad = antennas[v.id];
// raytrace home body
Vector3d dir;
double dist = 0.0;
bool visible = Sim.RaytraceBody(v, home, out dir, out dist);
dist = Math.Abs(dist); //< avoid problem below water level
// store in visibility cache
// note: we store distance & visibility flag at the same time
direct_visibility_cache.Add(v.id, visible && dist < ad.range ? dist : 0.0);
}
// build indirect visibility cache
indirect_visibility_cache.Clear();
foreach (Vessel v in FlightGlobals.Vessels)
{
// skip invalid vessels
if (!Lib.IsVessel(v))
{
continue;
}
// get antenna data
antenna_data v_ad = antennas[v.id];
// for each vessel
foreach (Vessel w in FlightGlobals.Vessels)
{
// skip invalid vessels
if (!Lib.IsVessel(w))
{
continue;
}
// do not test with itself
if (v == w)
{
continue;
}
// do not compute visibility when both vessels have a direct link
// rationale: optimization, the indirect visibility it never used in this case
if (direct_visibility_cache[v.id] > double.Epsilon && direct_visibility_cache[w.id] > double.Epsilon)
{
continue;
}
// generate merged guid
Guid id = Lib.CombineGuid(v.id, w.id);
// avoid raycasting the same pair twice
if (indirect_visibility_cache.ContainsKey(id))
{
continue;
}
// get antenna data
antenna_data w_ad = antennas[w.id];
// raytrace the vessel
Vector3d dir;
double dist = 0.0;
bool visible = Sim.RaytraceVessel(v, w, out dir, out dist);
// store visibility in cache
// note: we store distance & visibility flag at the same time
// note: relay visibility is asymmetric, done at link build time
indirect_visibility_cache.Add(id, visible && dist < Math.Min(v_ad.range, w_ad.range) ? dist : 0.0);
}
}
}
public vessel_info(Vessel v, uint vessel_id, UInt64 inc)
{
// NOTE: anything used here can't in turn use cache, unless you know what you are doing
// NOTE: you can't cache vessel position
// at any point in time all vessel/body positions are relative to a different frame of reference
// so comparing the current position of a vessel, with the cached one of another make no sense
// associate with an unique incremental id
this.inc = inc;
// determine if this is a valid vessel
is_vessel = Lib.IsVessel(v);
if (!is_vessel) return;
// determine if this is a rescue mission vessel
is_rescue = Misc.IsRescueMission(v);
if (is_rescue) return;
// dead EVA are not valid vessels
if (EVA.IsDead(v)) return;
// shortcut for common tests
is_valid = true;
// generate id once
id = vessel_id;
// calculate crew info for the vessel
crew_count = Lib.CrewCount(v);
crew_capacity = Lib.CrewCapacity(v);
// get vessel position
Vector3d position = Lib.VesselPosition(v);
// this should never happen again
if (Vector3d.Distance(position, v.mainBody.position) < 1.0)
{
throw new Exception("Shit hit the fan for vessel " + v.vesselName);
}
// determine if in sunlight, calculate sun direction and distance
sunlight = Sim.RaytraceBody(v, position, FlightGlobals.Bodies[0], out sun_dir, out sun_dist) ? 1.0 : 0.0;
// at the two highest timewarp speed, the number of sun visibility samples drop to the point that
// the quantization error first became noticeable, and then exceed 100%
// to solve this, we switch to an analytical estimation of the portion of orbit that was in sunlight
// - we check against timewarp rate, instead of index, to avoid issues during timewarp blending
if (v.mainBody.flightGlobalsIndex != 0 && TimeWarp.CurrentRate > 1000.0f)
{
sunlight = 1.0 - Sim.ShadowPeriod(v) / Sim.OrbitalPeriod(v);
}
// environment stuff
atmo_factor = Sim.AtmosphereFactor(v.mainBody, position, sun_dir);
gamma_transparency = Sim.GammaTransparency(v.mainBody, v.altitude);
underwater = Sim.Underwater(v);
breathable = Sim.Breathable(v, underwater);
landed = Lib.Landed(v);
// temperature at vessel position
temperature = Sim.Temperature(v, position, sunlight, atmo_factor, out solar_flux, out albedo_flux, out body_flux, out total_flux);
temp_diff = Sim.TempDiff(temperature, v.mainBody, landed);
// radiation
radiation = Radiation.Compute(v, position, gamma_transparency, sunlight, out blackout, out magnetosphere, out inner_belt, out outer_belt, out interstellar);
// extended atmosphere
thermosphere = Sim.InsideThermosphere(v);
exosphere = Sim.InsideExosphere(v);
// malfunction stuff
malfunction = Reliability.HasMalfunction(v);
critical = Reliability.HasCriticalFailure(v);
// signal info
antenna = new AntennaInfo(v);
avoid_inf_recursion.Add(v.id);
connection = Signal.connection(v, position, antenna, blackout, avoid_inf_recursion);
transmitting = Science.transmitting(v, connection.linked);
relaying = Signal.relaying(v, avoid_inf_recursion);
avoid_inf_recursion.Remove(v.id);
// habitat data
volume = Habitat.tot_volume(v);
surface = Habitat.tot_surface(v);
pressure = Habitat.pressure(v);
poisoning = Habitat.poisoning(v);
shielding = Habitat.shielding(v);
living_space = Habitat.living_space(v);
comforts = new Comforts(v, landed, crew_count > 1, connection.linked);
// data about greenhouses
greenhouses = Greenhouse.Greenhouses(v);
// other stuff
gravioli = Sim.Graviolis(v);
}
public static link_data Link(Vessel v, Vector3d position, antenna_data antenna, bool blackout, HashSet <Guid> avoid_inf_recursion)
{
// assume linked if signal mechanic is disabled
if (!Kerbalism.features.signal)
{
return(new link_data(true, link_status.direct_link, double.MaxValue));
}
// if it has no antenna
if (antenna.range <= double.Epsilon)
{
return(new link_data(false, link_status.no_antenna, 0.0));
}
// if there is a storm and the vessel is inside a magnetosphere
if (blackout)
{
return(new link_data(false, link_status.no_link, 0.0));
}
// store raytracing data
Vector3d dir;
double dist;
bool visible;
// raytrace home body
visible = Sim.RaytraceBody(v, position, FlightGlobals.GetHomeBody(), out dir, out dist);
dist = visible && antenna.range > dist ? dist : double.MaxValue;
// if directly linked
if (antenna.range > dist)
{
return(new link_data(true, link_status.direct_link, dist));
}
// for each other vessel
foreach (Vessel w in FlightGlobals.Vessels)
{
// do not test with itself
if (v == w)
{
continue;
}
// skip vessels already in this chain
if (avoid_inf_recursion.Contains(w.id))
{
continue;
}
// get vessel from the cache
// note: safe because we are avoiding infinite recursion
vessel_info wi = Cache.VesselInfo(w);
// skip invalid vessels
if (!wi.is_valid)
{
continue;
}
// skip non-relays and non-linked relays
if (wi.antenna.relay_range <= double.Epsilon || !wi.link.linked)
{
continue;
}
// raytrace the other vessel
visible = Sim.RaytraceVessel(v, w, position, wi.position, out dir, out dist);
dist = visible && antenna.range > dist ? dist : double.MaxValue;
// if indirectly linked
// note: relays with no EC have zero relay_range
// note: avoid relay loops
if (antenna.range > dist && wi.antenna.relay_range > dist && !wi.link.path.Contains(v))
{
// create indirect link data
link_data link = new link_data(wi.link);
// update the link data and return it
link.status = link_status.indirect_link;
link.distance = dist; //< store distance of last link
link.path.Add(w);
return(link);
}
}
// no link
return(new link_data(false, link_status.no_link, 0.0));
}
public static ConnectionInfo connection(Vessel v, Vector3d position, AntennaInfo antenna, bool blackout, HashSet <Guid> avoid_inf_recursion)
{
// if signal mechanic is disabled, use RemoteTech/CommNet/S4
if (!Features.Signal)
{
return(OtherComms(v));
}
// if it has no antenna
if (antenna.no_antenna)
{
return(new ConnectionInfo(LinkStatus.no_antenna));
}
// if there is a storm and the vessel is inside a magnetosphere
if (blackout)
{
return(new ConnectionInfo(LinkStatus.blackout));
}
// store raytracing data
Vector3d dir;
double dist;
bool visible;
// store other data
double rate;
List <ConnectionInfo> connections = new List <ConnectionInfo>();
// raytrace home body
visible = Sim.RaytraceBody(v, position, FlightGlobals.GetHomeBody(), out dir, out dist);
// get rate
rate = antenna.direct_rate(dist);
// if directly linked
if (visible && rate > Settings.ControlRate)
{
ConnectionInfo conn = new ConnectionInfo(LinkStatus.direct_link, rate, antenna.direct_cost);
connections.Add(conn);
}
// for each other vessel
foreach (Vessel w in FlightGlobals.Vessels)
{
// do not test with itself
if (v == w)
{
continue;
}
// skip vessels already in this chain
if (avoid_inf_recursion.Contains(w.id))
{
continue;
}
// get vessel from the cache
// - when:
// . cache is empty (eg: new savegame loaded)
// - we avoid single-tick wrong paths arising from this situation:
// . vessel A is directly linked
// . vessel B is indirectly linked through A
// . cache is cleared (after loading a savegame)
// . cache of A is computed
// . in turn, cache of B is computed ignoring A (and stored)
// . until cache of B is re-computed, B will result incorrectly not linked
// - in this way:
// . cache of A is computed
// . in turn, cache of B is computed ignoring A (but not stored)
// . cache of B is then computed correctly
// . do not degenerate into O(N^3) by using non-optimal path
vessel_info wi;
if (!Cache.HasVesselInfo(w, out wi))
{
if (connections.Count > 0)
{
continue;
}
else
{
wi = new vessel_info(w, Lib.VesselID(w), 0);
}
}
// skip invalid vessels
if (!wi.is_valid)
{
continue;
}
// skip non-relays and non-linked relays
if (!wi.antenna.is_relay || !wi.connection.linked)
{
continue;
}
// raytrace the other vessel
visible = Sim.RaytraceVessel(v, w, position, Lib.VesselPosition(w), out dir, out dist);
// get rate
rate = antenna.indirect_rate(dist, wi.antenna);
// if indirectly linked
// - relays with no EC have zero relay_range
// - avoid relay loops
if (visible && rate > Settings.ControlRate && !wi.connection.path.Contains(v))
{
// create indirect link data
ConnectionInfo conn = new ConnectionInfo(wi.connection);
// update the link data and return it
conn.status = LinkStatus.indirect_link;
conn.rate = Math.Min(conn.rate, rate);
conn.cost = antenna.indirect_cost;
conn.path.Add(w);
connections.Add(conn);
}
}
// if at least a connection has been found
if (connections.Count > 0)
{
// select the best connection
double best_rate = 0.0;
int best_index = 0;
for (int i = 0; i < connections.Count; ++i)
{
if (connections[i].rate > best_rate)
{
best_rate = connections[i].rate;
best_index = i;
}
}
// and return it
return(connections[best_index]);
}
// no link
return(new ConnectionInfo(LinkStatus.no_link));
}
public vessel_info(Vessel v, uint vessel_id, UInt64 inc)
{
// NOTE: anything used here can't in turn use cache, unless you know what you are doing
// associate with an unique incremental id
this.inc = inc;
// determine if this is a valid vessel
is_vessel = Lib.IsVessel(v);
if (!is_vessel) return;
// determine if this is a resque mission vessel
is_resque = Lib.IsResqueMission(v);
if (is_resque) return;
// dead EVA are not valid vessels
if (v.isEVA && EVA.KerbalData(v).eva_dead) return;
// shortcut for common tests
is_valid = true;
// generate id once
id = vessel_id;
// calculate crew info for the vessel
crew_count = Lib.CrewCount(v);
crew_capacity = Lib.CrewCapacity(v);
// get vessel position once
position = Lib.VesselPosition(v);
// determine if in sunlight, calculate sun direction and distance
sunlight = Sim.RaytraceBody(v, position, FlightGlobals.Bodies[0], out sun_dir, out sun_dist) ? 1.0 : 0.0;
// if the orbit length vs simulation step is lower than an acceptable threshold, use discrete sun visibility
if (v.mainBody.flightGlobalsIndex != 0)
{
double orbit_period = Sim.OrbitalPeriod(v);
if (orbit_period / Kerbalism.elapsed_s < 16.0) sunlight = 1.0 - Sim.ShadowPeriod(v) / orbit_period;
}
// calculate environment stuff
atmo_factor = Sim.AtmosphereFactor(v.mainBody, position, sun_dir);
gamma_transparency = Sim.GammaTransparency(v.mainBody, v.altitude);
breathable = Sim.Breathable(v);
landed = Lib.Landed(v);
// calculate temperature at vessel position
temperature = Sim.Temperature(v, position, sunlight, atmo_factor, out solar_flux, out albedo_flux, out body_flux, out total_flux);
// calculate radiation
radiation = Radiation.Compute(v, position, gamma_transparency, sunlight, out blackout, out inside_pause, out inside_belt);
// calculate malfunction stuff
max_malfunction = Reliability.MaxMalfunction(v);
avg_quality = Reliability.AverageQuality(v);
// calculate signal info
antenna = new antenna_data(v);
avoid_inf_recursion.Add(v.id);
link = Signal.Link(v, position, antenna, blackout, avoid_inf_recursion);
avoid_inf_recursion.Remove(v.id);
// partial data about modules, used by vessel info/monitor
scrubbers = Scrubber.PartialData(v);
recyclers = Recycler.PartialData(v);
greenhouses = Greenhouse.PartialData(v);
// woot relativity
time_dilation = Sim.TimeDilation(v);
}