private void generateIntersectionsOnCircle(int count, float radius)
{
var angleBetweenIntersections = 360.Degrees() / count;
var levelRadius = radius * Constants.Game.World.HexagonWidth.U();
var startAngle = Direction2.FromDegrees(StaticRandom.Float(360));
var angleVariance = angleBetweenIntersections.Radians * 0.3f;
for (var i = 0; i < count; i++)
{
var angle = startAngle + angleBetweenIntersections * i
+ StaticRandom.Float(-angleVariance, angleVariance).Radians();
var point = new Position2() + angle.Vector
* (levelRadius * StaticRandom.Float(0.8f, 1));
intersections.Add(point);
}
}
public HitResult?TryHit(Ray ray)
{
var start = ray.Start.NumericValue;
var direction = ray.Direction.NumericValue;
var topLeft = this.TopLeft.NumericValue;
var bottomRight = (this.TopLeft + this.Size).NumericValue;
HitResult?result = null;
var bestF = 1f;
if (direction.X != 0)
{
{ // left
var f = (topLeft.X - start.X) / direction.X;
if (f >= 0 && f < bestF)
{
var y = start.Y + direction.Y * f;
if (y >= topLeft.Y && y <= bottomRight.Y)
{
bestF = f;
result = new HitResult(new Position2(topLeft.X, y), Direction2.FromDegrees(180), f,
start.X > topLeft.X);
}
}
}
{ // right
var f = (bottomRight.X - start.X) / direction.X;
if (f >= 0 && f < bestF)
{
var y = start.Y + direction.Y * f;
if (y >= topLeft.Y && y <= bottomRight.Y)
{
bestF = f;
result = new HitResult(new Position2(bottomRight.X, y), Direction2.FromDegrees(0), f,
start.X < bottomRight.X);
}
}
}
}
if (direction.Y != 0)
{
{ // top
var f = (topLeft.Y - start.Y) / direction.Y;
if (f >= 0 && f < bestF)
{
var x = start.X + direction.X * f;
if (x >= topLeft.X && x <= bottomRight.X)
{
bestF = f;
result = new HitResult(new Position2(x, topLeft.Y), Direction2.FromDegrees(270), f,
start.Y > topLeft.Y);
}
}
}
{ // bottom
var f = (bottomRight.Y - start.Y) / direction.Y;
if (f >= 0 && f < bestF)
{
var x = start.X + direction.X * f;
if (x >= topLeft.X && x <= bottomRight.X)
{
bestF = f;
result = new HitResult(new Position2(x, bottomRight.Y), Direction2.FromDegrees(90), f,
start.Y < bottomRight.Y);
}
}
}
}
return(result);
}