/// <summary>
/// <para>Test line segment between startPosition and targetPosition for obstructing entities.</para>
/// <para>Tests for obstructing voxel map, character, or grid.</para>
///// <param name="shortTest">When checking voxels, shortens the line by 1 m, needed to interact with an entity that may be on the surface of the voxel.</param>
/// </summary>
public static bool Obstructed <Tignore>(LineD line, IEnumerable <Tignore> ignoreList, bool checkVoxel = true, bool checkPlanet = DefaultCheckPlanet) where Tignore : IMyEntity
{
List <MyLineSegmentOverlapResult <MyEntity> > potentialObstruction = ResourcePool <List <MyLineSegmentOverlapResult <MyEntity> > > .Get();
MyGamePruningStructure.GetAllEntitiesInRay(ref line, potentialObstruction);
bool result = Obstructed(line, potentialObstruction.Select(overlap => overlap.Element), ignoreList, checkVoxel, checkPlanet);
potentialObstruction.Clear();
ResourcePool <List <MyLineSegmentOverlapResult <MyEntity> > > .Return(potentialObstruction);
return(result);
}
public static bool IntersectsVoxel(ref CapsuleD capsule, out MyVoxelBase hitVoxel, out Vector3D hitPosition, bool checkPlanet, double capsuleLength = -1d)
{
Profiler.StartProfileBlock();
if (capsuleLength < 0)
{
Vector3D.Distance(ref capsule.P0, ref capsule.P1, out capsuleLength);
}
double halfLength = capsuleLength * 0.5d;
Vector3D temp; Vector3D.Add(ref capsule.P0, ref capsule.P1, out temp);
Vector3D middle; Vector3D.Multiply(ref temp, 0.5d, out middle);
double radius = halfLength + capsule.Radius;
BoundingSphereD worldSphere = new BoundingSphereD()
{
Center = middle, Radius = radius
};
List <MyVoxelBase> voxels = ResourcePool <List <MyVoxelBase> > .Get();
MyGamePruningStructure.GetAllVoxelMapsInSphere(ref worldSphere, voxels);
foreach (MyVoxelBase voxel in voxels)
{
if ((voxel is MyVoxelMap || voxel is MyPlanet && checkPlanet) && Intersects(ref capsule, voxel, out hitPosition, capsuleLength))
{
hitVoxel = voxel;
voxels.Clear();
ResourcePool.Return(voxels);
Profiler.EndProfileBlock();
return(true);
}
}
voxels.Clear();
ResourcePool.Return(voxels);
hitVoxel = null;
hitPosition = Vector3.Invalid;
Profiler.EndProfileBlock();
return(false);
}
/// <summary>
/// Estimates the proximity between a given capsule and any voxel.
/// </summary>
/// <param name="capsule">The capsule to test for intersection, the points must be at least one metre apart.</param>
public static double ProximityToVoxel(ref CapsuleD capsule, out MyVoxelBase hitVoxel, out Vector3D hitPosition, bool checkPlanet, double capsuleLength = -1d)
{
Profiler.StartProfileBlock();
if (capsuleLength < 0)
{
Vector3D.Distance(ref capsule.P0, ref capsule.P1, out capsuleLength);
}
double halfLength = capsuleLength * 0.5d;
Vector3D temp; Vector3D.Add(ref capsule.P0, ref capsule.P1, out temp);
Vector3D middle; Vector3D.Multiply(ref temp, 0.5d, out middle);
double radius = halfLength + capsule.Radius;
BoundingSphereD worldSphere = new BoundingSphereD()
{
Center = middle, Radius = radius
};
List <MyVoxelBase> voxels = ResourcePool <List <MyVoxelBase> > .Get();
MyGamePruningStructure.GetAllVoxelMapsInSphere(ref worldSphere, voxels);
double closestProx = double.MaxValue;
hitPosition = Globals.Invalid;
foreach (MyVoxelBase voxel in voxels)
{
if (voxel is MyVoxelMap || voxel is MyPlanet && checkPlanet)
{
if (voxel is MyPlanet)
{
LineSegmentD line;
ResourcePool.Get(out line);
line.From = capsule.P0;
line.To = capsule.P1;
double minDistSq = line.DistanceSquared(voxel.GetCentre());
double maxPlanetRadius = ((MyPlanet)voxel).MaximumRadius;
ResourcePool.Return(line);
if (minDistSq > maxPlanetRadius * maxPlanetRadius)
{
Logger.DebugLog("Skip planet from: " + line.From + ", to: " + line.To + ", planet centre: " + voxel.GetCentre() + ", min dist sq to centre: " + minDistSq + ", max planet radius: " + maxPlanetRadius);
continue;
}
Logger.DebugLog("Check planet from: " + line.From + ", to: " + line.To + ", planet centre: " + voxel.GetCentre() + ", min dist sq to centre: " + minDistSq + ", max planet radius: " + maxPlanetRadius);
}
double proximity = Proximity(ref capsule, voxel, ref hitPosition, capsuleLength);
if (proximity < closestProx)
{
Logger.TraceLog("proximity is less than closest. proximity: " + proximity + ", closest: " + closestProx);
closestProx = proximity;
}
if (closestProx < 1d)
{
Logger.TraceLog("closest under 1: " + closestProx);
hitVoxel = voxel;
voxels.Clear();
ResourcePool.Return(voxels);
Profiler.EndProfileBlock();
return(closestProx);
}
}
}
voxels.Clear();
ResourcePool.Return(voxels);
hitVoxel = null;
Profiler.EndProfileBlock();
return(closestProx);
}
public static void Get <T>(out T item) where T : new()
{
item = ResourcePool <T> .Get();
}
public static void Return <T>(T item) where T : new()
{
ResourcePool <T> .Return(item);
}
