/// <summary>
/// Pushes gas from the lungs to a gas mixture.
/// </summary>
public void PushGasTo(EntityUid uid, GasMixture to,
LungComponent?lung = null,
MechanismComponent?mech = null)
{
if (!Resolve(uid, ref lung, ref mech))
{
return;
}
// TODO: Make the bloodstream separately pump toxins into the lungs, making the lungs' only job to empty.
if (mech.Body == null)
{
return;
}
if (!EntityManager.TryGetComponent((mech.Body).Owner, out BloodstreamComponent? bloodstream))
{
return;
}
_bloodstreamSystem.PumpToxins((mech.Body).Owner, lung.Air, bloodstream);
var lungRemoved = lung.Air.RemoveRatio(0.5f);
_atmosSys.Merge(to, lungRemoved);
}
/// <summary>
/// Inhales directly from a given mixture.
/// </summary>
public void TakeGasFrom(EntityUid uid, float frameTime, GasMixture from,
LungComponent?lung = null,
MechanismComponent?mech = null)
{
if (!Resolve(uid, ref lung, ref mech))
{
return;
}
var ratio = (Atmospherics.BreathVolume / from.Volume) * frameTime;
_atmosSys.Merge(lung.Air, from.RemoveRatio(ratio));
// Push to bloodstream
if (mech.Body == null)
{
return;
}
if (!EntityManager.TryGetComponent((mech.Body).Owner, out BloodstreamComponent? bloodstream))
{
return;
}
var to = bloodstream.Air;
_atmosSys.Merge(to, lung.Air);
lung.Air.Clear();
}
/// <summary>
/// Tries to find an air mixture to inhale from, then inhales from it.
/// </summary>
public void Inhale(EntityUid uid, float frameTime,
LungComponent?lung = null,
MechanismComponent?mech = null)
{
if (!Resolve(uid, ref lung, ref mech))
{
return;
}
// TODO Jesus Christ make this event based.
if (mech.Body != null &&
EntityManager.TryGetComponent((mech.Body).Owner, out InternalsComponent? internals) &&
internals.BreathToolEntity != null &&
internals.GasTankEntity != null &&
EntityManager.TryGetComponent(internals.BreathToolEntity, out BreathToolComponent? breathTool) &&
breathTool.IsFunctional &&
EntityManager.TryGetComponent(internals.GasTankEntity, out GasTankComponent? gasTank))
{
TakeGasFrom(uid, frameTime, gasTank.RemoveAirVolume(Atmospherics.BreathVolume), lung);
return;
}
if (_atmosSys.GetTileMixture(EntityManager.GetComponent <TransformComponent>(uid).Coordinates, true) is not {
} tileAir)
{
return;
}
TakeGasFrom(uid, frameTime, tileAir, lung);
}
public void UpdateLung(EntityUid uid,
LungComponent?lung = null,
MechanismComponent?mech = null)
{
if (!Resolve(uid, ref lung, ref mech))
{
return;
}
if (mech.Body != null && EntityManager.TryGetComponent((mech.Body).Owner, out MobStateComponent? mobState) && mobState.IsCritical())
{
return;
}
if (lung.Status == LungStatus.None)
{
lung.Status = LungStatus.Inhaling;
}
lung.AccumulatedFrametime += lung.Status switch
{
LungStatus.Inhaling => 1,
LungStatus.Exhaling => - 1,
_ => throw new ArgumentOutOfRangeException()
};
var absoluteTime = Math.Abs(lung.AccumulatedFrametime);
var delay = lung.CycleDelay;
if (absoluteTime < delay)
{
return;
}
switch (lung.Status)
{
case LungStatus.Inhaling:
Inhale(uid, absoluteTime);
lung.Status = LungStatus.Exhaling;
break;
case LungStatus.Exhaling:
Exhale(uid, absoluteTime);
lung.Status = LungStatus.Inhaling;
break;
default:
throw new ArgumentOutOfRangeException();
}
lung.AccumulatedFrametime = absoluteTime - delay;
}
/// <summary>
/// Tries to find a gas mixture to exhale to, then pushes gas to it.
/// </summary>
public void Exhale(EntityUid uid, float frameTime,
LungComponent?lung = null,
MechanismComponent?mech = null)
{
if (!Resolve(uid, ref lung, ref mech))
{
return;
}
if (_atmosSys.GetTileMixture(EntityManager.GetComponent <TransformComponent>(uid).Coordinates, true) is not {
} tileAir)
{
return;
}
PushGasTo(uid, tileAir, lung, mech);
}
public void Gasp(EntityUid uid,
LungComponent?lung = null,
SharedMechanismComponent?mech = null)
{
if (!Resolve(uid, ref lung))
{
return;
}
if (_gameTiming.CurTime >= lung.LastGaspPopupTime + lung.GaspPopupCooldown)
{
lung.LastGaspPopupTime = _gameTiming.CurTime;
_popupSystem.PopupEntity(Loc.GetString("lung-behavior-gasp"), uid, Filter.Pvs(uid));
}
Inhale(uid, lung.CycleDelay);
}
public void Gasp(EntityUid uid,
LungComponent?lung = null,
MechanismComponent?mech = null)
{
if (!Resolve(uid, ref lung, ref mech))
{
return;
}
if (_gameTiming.CurTime >= lung.LastGaspPopupTime + lung.GaspPopupCooldown)
{
lung.LastGaspPopupTime = _gameTiming.CurTime;
_popupSystem.PopupEntity(Loc.GetString("lung-behavior-gasp"), uid, Filter.Pvs(uid));
}
if (mech.Body != null && TryComp((mech.Body).Owner, out MobStateComponent? mobState) && !mobState.IsAlive())
{
return;
}
Inhale(uid, lung.CycleDelay);
}