private static void RunAssertion <L>(
int numPoints,
int numMoves,
int queryFrameSize,
SupportQuadTreeConfig config,
SupportQuadTreeToolNonUnique <L> tools)
{
var random = new Random();
L quadTree = tools.factory.Invoke(config);
var points = tools.generator.Generate(random, numPoints, config.X, config.Y, config.Width, config.Height);
foreach (var point in points)
{
tools.adderNonUnique.Invoke(quadTree, point);
}
for (var i = 0; i < numMoves; i++)
{
SupportRectangleWithId moved = points[(random.Next(points.Count))];
Move(moved, quadTree, random, config, tools);
var startX = moved.X - queryFrameSize;
var startY = moved.Y - queryFrameSize;
double widthQ = queryFrameSize * 2;
double heightQ = queryFrameSize * 2;
ICollection <object> values = tools.querier.Invoke(quadTree, startX, startY, widthQ, heightQ);
AssertIds(points, values, startX, startY, widthQ, heightQ, tools.pointInsideChecking);
}
}
public static void RunAssertion <L>(SupportQuadTreeToolNonUnique <L> tools)
{
SupportQuadTreeConfig[] configs =
{
new SupportQuadTreeConfig(0, 0, 100, 100, 4, 20),
new SupportQuadTreeConfig(0, 0, 10, 10, 4, 20),
new SupportQuadTreeConfig(0, 0, 10, 10, 100, 20),
new SupportQuadTreeConfig(0, 0, 10, 10, 4, 100)
};
foreach (var config in configs)
{
RunAssertion(1000, 2000, 5, config, tools);
RunAssertion(2, 1000, 1, config, tools);
RunAssertion(1000, 1000, 1, config, tools);
}
// test performance
long start = PerformanceObserver.MilliTime;
RunAssertion(1000, 1000, 10, new SupportQuadTreeConfig(0, 0, 100, 100, 4, 20), tools);
var delta = PerformanceObserver.MilliTime - start;
Assert.That(delta, Is.LessThan(1000), () => "Time taken: " + delta); // rough and leaves room for GC etc, just a performance smoke test
}
private static void Move <L>(
SupportRectangleWithId rectangle,
L quadTree,
Random random,
SupportQuadTreeConfig config,
SupportQuadTreeToolNonUnique <L> tools)
{
tools.remover.Invoke(quadTree, rectangle);
double newX;
double newY;
while (true)
{
int direction = random.Next(4);
newX = rectangle.X;
newY = rectangle.Y;
if (direction == 0)
{
newX--;
}
else if (direction == 1)
{
newY--;
}
else if (direction == 2)
{
newX++;
}
else if (direction == 3)
{
newY++;
}
if (tools.pointInsideChecking)
{
if (BoundingBox.ContainsPoint(config.X, config.Y, config.Width, config.Height, newX, newY))
{
break;
}
}
else
{
if (BoundingBox.IntersectsBoxIncludingEnd(config.X, config.Y, config.MaxX, config.MaxY, newX, newY, rectangle.W, rectangle.H))
{
break;
}
}
}
// Comment-me-in:
// log.info("Moving " + point.getId() + " from " + printPoint(point.getX(), point.getY()) + " to " + printPoint(newX, newY));
rectangle.X = newX;
rectangle.Y = newY;
tools.adderNonUnique.Invoke(quadTree, rectangle);
}