/// <summary>
/// Generates a detour that avoids the obstacle that was found by the provided entryRay and hit.
/// </summary>
/// <param name="entryRay">The ray used to find the entryPt.</param>
/// <param name="entryHit">The info for the entryHit.</param>
/// <returns></returns>
private INavigableTarget GenerateDetourAroundObstacle(Ray entryRay, RaycastHit entryHit) {
INavigableTarget detour = null;
Transform obstacle = entryHit.transform;
string obstacleName = obstacle.parent.name + "." + obstacle.name;
Vector3 rayEntryPoint = entryHit.point;
SphereCollider obstacleCollider = entryHit.collider as SphereCollider;
float obstacleRadius = obstacleCollider.radius;
float rayLength = (2F * obstacleRadius) + 1F;
Vector3 pointBeyondKeepoutZone = entryRay.GetPoint(entryHit.distance + rayLength);
Vector3 rayExitPoint = FindRayExitPoint(entryRay, entryHit, pointBeyondKeepoutZone, 0);
//D.Log("{0} found RayExitPoint. EntryPt to exitPt distance = {1}.", Name, Vector3.Distance(rayEntryPoint, rayExitPoint));
Vector3 obstacleCenter = obstacle.position;
var ptOnSphere = UnityUtility.FindClosestPointOnSphereOrthogonalToIntersectingLine(rayEntryPoint, rayExitPoint, obstacleCenter, obstacleRadius);
float obstacleClearanceLeeway = 2F; // HACK
var detourWorldSpaceLocation = ptOnSphere + (ptOnSphere - obstacleCenter).normalized * obstacleClearanceLeeway;
INavigableTarget obstacleParent = obstacle.gameObject.GetSafeFirstInterfaceInParents<INavigableTarget>();
D.Assert(obstacleParent != null, "Obstacle {0} does not have a {1} parent.".Inject(obstacleName, typeof(INavigableTarget).Name));
if (obstacleParent.IsMobile) {
var detourRelativeToObstacleCenter = detourWorldSpaceLocation - obstacleCenter;
var detourRef = new Reference<Vector3>(() => obstacle.position + detourRelativeToObstacleCenter);
detour = new MovingLocation(detourRef);
}
else {
detour = new StationaryLocation(detourWorldSpaceLocation);
}
//D.Log("{0} found detour {1} to avoid obstacle {2} at {3}. \nDistance to detour = {4:0.#}. Obstacle keepout radius = {5:0.##}. Detour is {6:0.#} from obstacle center.",
//Name, detour.FullName, obstacleName, obstacleCenter, Vector3.Distance(Position, detour.Position), obstacleRadius, Vector3.Distance(obstacleCenter, detour.Position));
return detour;
}
/// <summary>
/// Generates a detour around the provided obstacle.
/// </summary>
/// <param name="obstacle">The obstacle.</param>
/// <param name="hitInfo">The hit information.</param>
/// <param name="fleetRadius">The fleet radius.</param>
/// <returns></returns>
private AutoPilotDestinationProxy GenerateDetourAroundObstacle(IAvoidableObstacle obstacle, RaycastHit hitInfo, float fleetRadius) {
Vector3 detourPosition = obstacle.GetDetour(Position, hitInfo, fleetRadius);
StationaryLocation detour = new StationaryLocation(detourPosition);
Vector3 detourOffset = CalcDetourOffset(detour);
float tgtStandoffDistance = _ship.CollisionDetectionZoneRadius;
return detour.GetApMoveTgtProxy(detourOffset, tgtStandoffDistance, Position);
}
/// <summary>
/// Refreshes the course.
/// </summary>
/// <param name="mode">The mode.</param>
/// <param name="wayPtProxy">The optional waypoint. When not null, this is always a StationaryLocation detour to avoid an obstacle.</param>
/// <exception cref="System.NotImplementedException"></exception>
private void RefreshCourse(CourseRefreshMode mode, AutoPilotDestinationProxy wayPtProxy = null) {
//D.Log(ShowDebugLog, "{0}.RefreshCourse() called. Mode = {1}. CourseCountBefore = {2}.", DebugName, mode.GetValueName(), AutoPilotCourse.Count);
switch (mode) {
case CourseRefreshMode.NewCourse:
D.AssertNull(wayPtProxy);
ApCourse.Clear();
ApCourse.Add(_ship);
IShipNavigable courseTgt;
if (ApTargetProxy.IsMobile) {
courseTgt = new MobileLocation(new Reference<Vector3>(() => ApTargetProxy.Position));
}
else {
courseTgt = new StationaryLocation(ApTargetProxy.Position);
}
ApCourse.Add(courseTgt); // includes fstOffset
break;
case CourseRefreshMode.AddWaypoint:
ApCourse.Insert(ApCourse.Count - 1, new StationaryLocation(wayPtProxy.Position)); // changes Course.Count
break;
case CourseRefreshMode.ReplaceObstacleDetour:
D.AssertEqual(3, ApCourse.Count);
ApCourse.RemoveAt(ApCourse.Count - 2); // changes Course.Count
ApCourse.Insert(ApCourse.Count - 1, new StationaryLocation(wayPtProxy.Position)); // changes Course.Count
break;
case CourseRefreshMode.RemoveWaypoint:
D.AssertEqual(3, ApCourse.Count);
bool isRemoved = ApCourse.Remove(new StationaryLocation(wayPtProxy.Position)); // Course.RemoveAt(Course.Count - 2); // changes Course.Count
D.Assert(isRemoved);
break;
case CourseRefreshMode.ClearCourse:
D.AssertNull(wayPtProxy);
ApCourse.Clear();
break;
default:
throw new NotImplementedException(ErrorMessages.UnanticipatedSwitchValue.Inject(mode));
}
//D.Log(ShowDebugLog, "CourseCountAfter = {0}.", Course.Count);
HandleCourseChanged();
}
/// <summary>
/// Calculates and returns the world space offset to the provided detour that when combined with the
/// detour's position, represents the actual location in world space this ship is trying to reach,
/// aka DetourPoint. Used to keep ships from bunching up at the detour when many ships in a fleet encounter the same obstacle.
/// </summary>
/// <param name="detour">The detour.</param>
/// <returns></returns>
private Vector3 CalcDetourOffset(StationaryLocation detour) {
if (_isApFleetwideMove) {
// make separate detour offsets as there may be a lot of ships encountering this detour
Quaternion shipCurrentRotation = _ship.transform.rotation;
Vector3 shipToDetourDirection = (detour.Position - _ship.Position).normalized;
Quaternion shipRotationChgReqdToFaceDetour = Quaternion.FromToRotation(_ship.CurrentHeading, shipToDetourDirection);
Quaternion shipRotationThatFacesDetour = Math3D.AddRotation(shipCurrentRotation, shipRotationChgReqdToFaceDetour);
Vector3 shipLocalFormationOffset = _ship.FormationStation.LocalOffset;
Vector3 detourWorldSpaceOffset = Math3D.TransformDirectionMath(shipRotationThatFacesDetour, shipLocalFormationOffset);
return detourWorldSpaceOffset;
}
return Vector3.zero;
}
public TargetInfo(StationaryLocation sl, Vector3 fstOffset, float fullSpeed) {
Target = sl;
Destination = sl.Position + fstOffset;
CloseEnoughDistance = fullSpeed * 0.5F;
CloseEnoughDistanceSqrd = CloseEnoughDistance * CloseEnoughDistance;
}
/// <summary>
/// Plots a course to a stationary location and notifies the requester of the
/// outcome via the onCoursePlotCompleted event.
/// </summary>
/// <param name="location">The stationary location.</param>
/// <param name="speed">The speed.</param>
/// <param name="isFleetMove">if set to <c>true</c> this navigator will only move when the fleet is ready.</param>
private void PlotCourse(StationaryLocation location, Speed speed, bool isFleetMove) {
// a formationOffset is required if this is a fleet move
Vector3 destinationOffset = isFleetMove ? _data.FormationStation.StationOffset : Vector3.zero;
_targetInfo = new TargetInfo(location, destinationOffset, _data.FullStlSpeed);
Speed = speed;
_isFleetMove = isFleetMove;
PlotCourse();
}
private void AssessNeedForRepair() {
if (Data.Health < 0.30F) {
if (CurrentOrder == null || CurrentOrder.Directive != ShipDirective.Repair) {
var repairLoc = Data.Position - _transform.forward * 10F;
INavigableTarget repairDestination = new StationaryLocation(repairLoc);
OverrideCurrentOrder(ShipDirective.Repair, retainSuperiorsOrder: true, target: repairDestination);
}
}
}
public ShipDestinationInfo(StationaryLocation location, Vector3 fstOffset, Reference<float> distanceTraveledInOneHour) {
Target = location;
_fstOffset = fstOffset;
_closeEnoughDistanceRef = distanceTraveledInOneHour;
_progressCheckDistanceRef = distanceTraveledInOneHour;
}