/// <summary>
/// Constructs a new demo.
/// </summary>
/// <param name="game">Game owning this demo.</param>
public BroadPhasesTestDemo(DemosGame game)
: base(game)
{
Space.Solver.IterationLimit = 0;
Entity toAdd;
//BoundingBox box = new BoundingBox(new Vector3(-5, 1, 1), new Vector3(5, 7, 7));
BoundingBox box = new BoundingBox(new Vector3(-50, -50, -50), new Vector3(50, 50, 50));
//DynamicHierarchyOld dhOld = new DynamicHierarchyOld(Space.ThreadManager);
DynamicHierarchy dh = new DynamicHierarchy(Space.ParallelLooper);
SortAndSweep1D sas1d = new SortAndSweep1D(Space.ParallelLooper);
Grid2DSortAndSweep grid2DSAS = new Grid2DSortAndSweep(Space.ParallelLooper);
//DynamicHierarchy dh = new DynamicHierarchy();
//DynamicHierarchy4 dh4 = new DynamicHierarchy4();
//SortAndSweep1D sas1d = new SortAndSweep1D();
//Grid2DSortAndSweep grid2DSAS = new Grid2DSortAndSweep();
//DynamicHierarchy2 dh2 = new DynamicHierarchy2();
//DynamicHierarchy3 dh3 = new DynamicHierarchy3();
//SortAndSweep3D sap3d = new SortAndSweep3D();
RawList<Entity> entities = new RawList<Entity>();
for (int k = 0; k < 100; k++)
{
Vector3 position = new Vector3((float)(rand.NextDouble() * (box.Max.X - box.Min.X) + box.Min.X),
(float)(rand.NextDouble() * (box.Max.Y - box.Min.Y) + box.Min.Y),
(float)(rand.NextDouble() * (box.Max.Z - box.Min.Z) + box.Min.Z));
toAdd = new Box(position, 1, 1, 1, 1);
toAdd.CollisionInformation.CollisionRules.Personal = CollisionRule.NoNarrowPhasePair;
toAdd.CollisionInformation.UpdateBoundingBox(0);
//Space.Add(toAdd);
//dhOld.Add(toAdd.CollisionInformation);
dh.Add(toAdd.CollisionInformation);
sas1d.Add(toAdd.CollisionInformation);
grid2DSAS.Add(toAdd.CollisionInformation);
entities.Add(toAdd);
}
Space.ForceUpdater.Gravity = new Vector3();
int numRuns = 10000;
//Prime the system.
grid2DSAS.Update();
sas1d.Update();
//dhOld.Update();
dh.Update();
var testType = Test.Update;
double startTime, endTime;
switch (testType)
{
#region Update Timing
case Test.Update:
for (int i = 0; i < numRuns; i++)
{
////DH
//startTime = Stopwatch.GetTimestamp() / (double)Stopwatch.Frequency;
//dhOld.Update();
//endTime = Stopwatch.GetTimestamp() / (double)Stopwatch.Frequency;
//DHOldTime += endTime - startTime;
//DH4
startTime = Stopwatch.GetTimestamp() / (double)Stopwatch.Frequency;
dh.Update();
endTime = Stopwatch.GetTimestamp() / (double)Stopwatch.Frequency;
DHtime += endTime - startTime;
//SAP1D
startTime = Stopwatch.GetTimestamp() / (double)Stopwatch.Frequency;
sas1d.Update();
endTime = Stopwatch.GetTimestamp() / (double)Stopwatch.Frequency;
SAS1Dtime += endTime - startTime;
//Grid2D SOS
startTime = Stopwatch.GetTimestamp() / (double)Stopwatch.Frequency;
grid2DSAS.Update();
endTime = Stopwatch.GetTimestamp() / (double)Stopwatch.Frequency;
grid2DSAStime += endTime - startTime;
//if (sap1d.Overlaps.Count != dh.Overlaps.Count)
// Debug.WriteLine("SAP1D Failure");
//if (grid2DSOS.Overlaps.Count != dh.Overlaps.Count)
// Debug.WriteLine("grid2DSOS Failure");
//for (int j = 0; j < dh2.Overlaps.Count; j++)
//{
// if (!grid2DSOS.Overlaps.Contains(dh2.Overlaps[j]))
// Debug.WriteLine("Break.");
//}
//for (int j = 0; j < grid2DSOS.Overlaps.Count; j++)
//{
// if (!dh2.Overlaps.Contains(grid2DSOS.Overlaps[j]))
// break;
//}
//for (int j = 0; j < grid2DSOS.Overlaps.Count; j++)
//{
// if (!dh4.Overlaps.Contains(grid2DSOS.Overlaps[j]))
// break;
//}
//for (int j = 0; j < dh.Overlaps.Count; j++)
//{
// if (!dh.Overlaps[j].EntryA.BoundingBox.Intersects(dh.Overlaps[j].EntryB.BoundingBox))
// Debug.WriteLine("Break.");
//}
//for (int j = 0; j < sap1d.Overlaps.Count; j++)
//{
// if (!sap1d.Overlaps[j].EntryA.BoundingBox.Intersects(sap1d.Overlaps[j].EntryB.BoundingBox))
// Debug.WriteLine("Break.");
//}
//for (int j = 0; j < grid2DSOS.Overlaps.Count; j++)
//{
// if (!grid2DSOS.Overlaps[j].EntryA.BoundingBox.Intersects(grid2DSOS.Overlaps[j].EntryB.BoundingBox))
// Debug.WriteLine("Break.");
//}
//MoveEntities(entities);
}
break;
#endregion
#region Ray cast timing
case Test.RayCast:
float rayLength = 100;
RawList<Ray> rays = new RawList<Ray>();
for (int i = 0; i < numRuns; i++)
{
rays.Add(new Ray()
{
Position = new Vector3((float)(rand.NextDouble() * (box.Max.X - box.Min.X) + box.Min.X),
(float)(rand.NextDouble() * (box.Max.Y - box.Min.Y) + box.Min.Y),
(float)(rand.NextDouble() * (box.Max.Z - box.Min.Z) + box.Min.Z)),
Direction = Vector3.Normalize(new Vector3((float)(rand.NextDouble() - .5), (float)(rand.NextDouble() - .5), (float)(rand.NextDouble() - .5)))
});
}
RawList<BroadPhaseEntry> outputIntersections = new RawList<BroadPhaseEntry>();
////DH
//startTime = Stopwatch.GetTimestamp() / (double)Stopwatch.Frequency;
//for (int i = 0; i < numRuns; i++)
//{
// dhOld.QueryAccelerator.RayCast(rays.Elements[i], rayLength, outputIntersections);
// outputIntersections.Clear();
//}
//endTime = Stopwatch.GetTimestamp() / (double)Stopwatch.Frequency;
//DHOldTime = endTime - startTime;
//DH4
startTime = Stopwatch.GetTimestamp() / (double)Stopwatch.Frequency;
for (int i = 0; i < numRuns; i++)
{
dh.QueryAccelerator.RayCast(rays.Elements[i], rayLength, outputIntersections);
outputIntersections.Clear();
}
endTime = Stopwatch.GetTimestamp() / (double)Stopwatch.Frequency;
DHtime = endTime - startTime;
//Grid2DSAS
startTime = Stopwatch.GetTimestamp() / (double)Stopwatch.Frequency;
for (int i = 0; i < numRuns; i++)
{
grid2DSAS.QueryAccelerator.RayCast(rays.Elements[i], rayLength, outputIntersections);
outputIntersections.Clear();
}
endTime = Stopwatch.GetTimestamp() / (double)Stopwatch.Frequency;
grid2DSAStime = endTime - startTime;
break;
#endregion
#region Bounding box query timing
case Test.BoundingBoxQuery:
float boundingBoxSize = 10;
var boundingBoxes = new RawList<BoundingBox>();
Vector3 offset = new Vector3(boundingBoxSize / 2, boundingBoxSize / 2, boundingBoxSize / 2);
for (int i = 0; i < numRuns; i++)
{
Vector3 center = new Vector3((float)(rand.NextDouble() * (box.Max.X - box.Min.X) + box.Min.X),
(float)(rand.NextDouble() * (box.Max.Y - box.Min.Y) + box.Min.Y),
(float)(rand.NextDouble() * (box.Max.Z - box.Min.Z) + box.Min.Z));
boundingBoxes.Add(new BoundingBox()
{
Min = center - offset,
Max = center + offset
});
}
outputIntersections = new RawList<BroadPhaseEntry>();
////DH
//startTime = Stopwatch.GetTimestamp() / (double)Stopwatch.Frequency;
//for (int i = 0; i < numRuns; i++)
//{
// dhOld.QueryAccelerator.GetEntries(boundingBoxes.Elements[i], outputIntersections);
// outputIntersections.Clear();
//}
//endTime = Stopwatch.GetTimestamp() / (double)Stopwatch.Frequency;
//DHOldTime = endTime - startTime;
//DH4
startTime = Stopwatch.GetTimestamp() / (double)Stopwatch.Frequency;
for (int i = 0; i < numRuns; i++)
{
dh.QueryAccelerator.GetEntries(boundingBoxes.Elements[i], outputIntersections);
outputIntersections.Clear();
}
endTime = Stopwatch.GetTimestamp() / (double)Stopwatch.Frequency;
DHtime = endTime - startTime;
//Grid2DSAS
startTime = Stopwatch.GetTimestamp() / (double)Stopwatch.Frequency;
for (int i = 0; i < numRuns; i++)
{
grid2DSAS.QueryAccelerator.GetEntries(boundingBoxes.Elements[i], outputIntersections);
outputIntersections.Clear();
}
endTime = Stopwatch.GetTimestamp() / (double)Stopwatch.Frequency;
grid2DSAStime = endTime - startTime;
break;
#endregion
}
DHOldTime /= numRuns;
DH2time /= numRuns;
DH3time /= numRuns;
DHtime /= numRuns;
SAS1Dtime /= numRuns;
grid2DSAStime /= numRuns;
}
