void Generate()
{
var lowerBound = new Vector2(-8.0f, -8.0f);
var upperBound = new Vector2(8.0f, 8.0f);
for (var i = 0; i < Count; ++i)
{
var x = 10.0f * RandomFloat();
var y = 10.0f * RandomFloat();
// Clamp onto a square to help create collinearities.
// This will stress the convex hull algorithm.
var v = new Vector2(x, y);
v = Vector2.Clamp(v, lowerBound, upperBound);
_points[i] = v;
}
_count = Count;
}
private void MoveAABB(ref AABB aabb)
{
Vector2 d;
d.X = RandomFloat(-0.5f, 0.5f);
d.Y = RandomFloat(-0.5f, 0.5f);
//d.X = 2.0f;
//d.Y = 0.0f;
aabb.LowerBound += d;
aabb.UpperBound += d;
var c0 = 0.5f * (aabb.LowerBound + aabb.UpperBound);
var min = new Vector2();
min.Set(-_worldExtent, 0.0f);
var max = new Vector2();
max.Set(_worldExtent, 2.0f * _worldExtent);
var c = Vector2.Clamp(c0, min, max);
aabb.LowerBound += c - c0;
aabb.UpperBound += c - c0;
}
