private void Create(List <MyObjectBuilder_CubeGrid> grids)
{
Vector3D centerSum = new Vector3D();
MatrixD mRef = reference.WorldMatrix;
MatrixD mRefNI = MatrixD.Normalize(MatrixD.Invert(mRef));
obbs = new List <MyOrientedBoundingBoxD>(grids.Count);
orientation = new GridOrientation(reference);
entityIds = new HashSet <long>();
foreach (MyObjectBuilder_CubeGrid grid in grids)
{
entityIds.Add(grid.EntityId);
Vector3I min = Vector3I.MaxValue;
Vector3I max = Vector3I.MinValue;
foreach (MyObjectBuilder_CubeBlock cube in grid.CubeBlocks)
{
min = Vector3I.Min(min, cube.Min);
max = Vector3I.Max(max, ComputeMax(cube));
}
double cubeGridSize = grid.GridSizeEnum == MyCubeSize.Large ? 2.5 : 0.5;
Vector3D pMin = min * cubeGridSize - (cubeGridSize * 0.5);
Vector3D pMax = max * cubeGridSize + (cubeGridSize * 0.5);
MyPositionAndOrientation pos = grid.PositionAndOrientation.Value;
Vector3D center = Vector3D.Transform((pMin + pMax) * 0.5, pos.GetMatrix());
centerSum += center;
MyOrientedBoundingBoxD box = new MyOrientedBoundingBoxD(center, (pMax - pMin) * 0.5, pos.Orientation);
obbs.Add(box);
orientation.Include(MatrixD.CreateWorld(center, pos.Forward, pos.Up));
}
centerSum /= obbs.Count;
relativeCenter = Vector3D.TransformNormal(centerSum - mRef.Translation, MatrixD.Transpose(mRef));
double radius2 = 0;
foreach (MyOrientedBoundingBoxD obb in obbs)
{
double dist2 = Vector3D.DistanceSquared(centerSum, obb.Center) + obb.HalfExtent.LengthSquared();
if (dist2 > radius2)
{
radius2 = dist2;
}
}
worldVolume = new BoundingSphereD(centerSum, Math.Sqrt(radius2));
}
public static bool TryCreate(ulong activator, IMyProjector p, bool shiftBuildArea, out ProjectedGrid projectedGrid)
{
projectedGrid = null;
// Ensure the projector is valid and has a projection
if (p.CubeGrid?.Physics == null)
{
Utilities.Notify(Constants.msgError + "bad_physics", activator);
return(false);
}
if (p.ProjectedGrid == null)
{
Utilities.Notify(Constants.msgNoGrid, activator);
return(false);
}
MyObjectBuilder_Projector pBuilder = (MyObjectBuilder_Projector)p.GetObjectBuilderCubeBlock(true);
if (pBuilder.ProjectedGrids == null || pBuilder.ProjectedGrids.Count == 0)
{
Utilities.Notify(Constants.msgNoGrid, activator);
return(false);
}
// Prepare list of grids
List <MyObjectBuilder_CubeGrid> grids = pBuilder.ProjectedGrids;
int largestIndex = FindLargest(grids);
MyObjectBuilder_CubeGrid largestGrid = grids[largestIndex];
if (Utilities.SupportsSubgrids(p))
{
if (largestIndex != 0)
{
MyObjectBuilder_CubeGrid temp = grids[0];
grids[0] = largestGrid;
grids[largestIndex] = temp;
}
}
else
{
grids.Clear();
grids.Add(largestGrid);
}
MatrixD largestMatrixInvert = MatrixD.Invert(largestGrid.PositionAndOrientation.Value.GetMatrix());
MatrixD targetMatrix = p.ProjectedGrid.WorldMatrix;
float scale = GetScale(p);
GridOrientation orientation = new GridOrientation(p);
GridComponents comps = null;
if (!MyAPIGateway.Session.CreativeMode)
{
comps = new GridComponents();
}
int totalBlocks = 0;
MyIDModule owner = ((MyCubeBlock)p).IDModule;
if (activator != 0)
{
long temp = MyAPIGateway.Players.TryGetIdentityId(activator);
if (temp != 0)
{
if (owner.ShareMode == MyOwnershipShareModeEnum.All)
{
owner = new MyIDModule(temp, MyOwnershipShareModeEnum.Faction);
}
else
{
owner = new MyIDModule(temp, owner.ShareMode);
}
}
}
Random rand = new Random();
foreach (MyObjectBuilder_CubeGrid grid in grids)
{
totalBlocks += grid.CubeBlocks.Count;
if (totalBlocks > IPSession.Instance.MapSettings.MaxBlocks)
{
Utilities.Notify(Constants.msgGridLarge, activator);
return(false);
}
PrepBlocks(rand, owner, grid, comps);
if (grid.CubeBlocks.Count == 0)
{
Utilities.Notify(Constants.msgGridSmall, activator);
return(false);
}
grid.IsStatic = false;
grid.CreatePhysics = true;
grid.Immune = false;
grid.DestructibleBlocks = true;
MatrixD current = grid.PositionAndOrientation.Value.GetMatrix();
if (scale != 1)
{
current.Translation /= scale;
}
MatrixD newWorldMatrix = (current * largestMatrixInvert) * targetMatrix;
grid.PositionAndOrientation = new MyPositionAndOrientation(ref newWorldMatrix);
orientation.Include(newWorldMatrix);
}
if (totalBlocks < IPSession.Instance.MapSettings.MinBlocks)
{
Utilities.Notify(Constants.msgGridSmall, activator);
return(false);
}
if (comps == null)
{
comps = new GridComponents();
}
else
{
comps.ApplySettings(IPSession.Instance.MapSettings);
int needed;
MyDefinitionId neededId;
if (!comps.HasComponents(Utilities.GetInventories(p), out needed, out neededId))
{
Utilities.Notify(Utilities.GetCompsString(needed, neededId), activator);
return(false);
}
}
GridBounds bounds = new GridBounds(p, grids);
IMyEntity e = bounds.GetOverlappingEntity();
if (e != null && (!shiftBuildArea || !bounds.HasClearArea()))
{
Utilities.Notify(Utilities.GetOverlapString(true, e), activator);
return(false);
}
projectedGrid = new ProjectedGrid(activator, p, grids, bounds, comps, orientation, shiftBuildArea, totalBlocks);
return(true);
}