protected void UpdateEnemyNear()
{
Vector3D myPosition = CubeBlock.GetPosition();
EnemyNear = false;
foreach (LastSeen seen in myLastSeen.Values)
{
IMyCubeGrid seenAsGrid = seen.Entity as IMyCubeGrid;
if (seenAsGrid != null)
{
//myLogger.debugLog("testing grid: " + seenAsGrid.DisplayName + ", recent = " + seen.isRecent() + ", hostile = " + CubeBlock.canConsiderHostile(seenAsGrid) + ", distance squared = " + (seen.LastKnownPosition - myPosition).LengthSquared(), "UpdateEnemyNear()");
if (seen.isRecent() && CubeBlock.canConsiderHostile(seenAsGrid) && (seen.LastKnownPosition - myPosition).LengthSquared() < 9000000) // 3km, squared = 9Mm
{
//myLogger.debugLog("nearby enemy: " + seen.Entity.getBestName(), "UpdateEnemyNear()");
EnemyNear = true;
return;
}
}
}
//myLogger.debugLog("no enemy nearby", "UpdateEnemyNear()");
}
/// <summary>
/// Updates m_stage if guidance starts or stops.
/// </summary>
private void CheckGuidance()
{
switch (m_stage)
{
case Stage.Rail:
double minDist = (MyEntity.WorldAABB.Max - MyEntity.WorldAABB.Min).AbsMax();
minDist *= 2;
if (CubeBlock.WorldAABB.DistanceSquared(MyEntity.GetPosition()) >= minDist * minDist)
{
myGuidanceEnds = Globals.ElapsedTime.Add(TimeSpan.FromSeconds(myDescr.GuidanceSeconds));
m_rail = null;
if (myDescr.SemiActiveLaser)
{
Log.DebugLog("past arming range, semi-active.", Logger.severity.INFO);
m_stage = Stage.SemiActive;
return;
}
if (CurrentTarget is GolisTarget)
{
Log.DebugLog("past arming range, golis active", Logger.severity.INFO);
m_stage = Stage.Golis;
return;
}
if (myAmmo.Description.BoostDistance > 1f)
{
Log.DebugLog("past arming range, starting boost stage", Logger.severity.INFO);
StartGravity();
m_stage = Stage.Boost;
if (m_gravData == null)
{
Log.DebugLog("no gravity, terminating", Logger.severity.WARNING);
m_stage = Stage.Terminated;
}
}
else
{
Log.DebugLog("past arming range, starting guidance.", Logger.severity.INFO);
m_stage = Stage.Guided;
}
}
return;
case Stage.Boost:
if (Vector3D.DistanceSquared(CubeBlock.GetPosition(), MyEntity.GetPosition()) >= myAmmo.Description.BoostDistance * myAmmo.Description.BoostDistance)
{
Log.DebugLog("completed boost stage, starting mid course stage", Logger.severity.INFO);
m_stage = Stage.MidCourse;
}
return;
case Stage.MidCourse:
Target t = CurrentTarget;
if (t.Entity == null)
{
return;
}
double toTarget = Vector3D.Distance(MyEntity.GetPosition(), t.GetPosition());
double toLaunch = Vector3D.Distance(MyEntity.GetPosition(), CubeBlock.GetPosition());
if (toTarget < toLaunch)
{
Log.DebugLog("closer to target(" + toTarget + ") than to launch(" + toLaunch + "), starting guidance", Logger.severity.INFO);
m_stage = Stage.Guided;
myGuidanceEnds = Globals.ElapsedTime.Add(TimeSpan.FromSeconds(myDescr.GuidanceSeconds));
m_gravData = null;
}
return;
case Stage.SemiActive:
case Stage.Golis:
case Stage.Guided:
if (Globals.ElapsedTime >= myGuidanceEnds)
{
Log.DebugLog("finished guidance", Logger.severity.INFO);
m_stage = Stage.Ballistic;
}
return;
}
}