internal void Load(SaveFileReader reader)
{
reader.ReadVersion(1);
var numPoints = reader.ReadUInt32();
if (numPoints != Points.Length)
{
throw new InvalidDataException();
}
for (var i = 0; i < numPoints; i++)
{
Points[i] = MapVector3i.Parse(reader.Inner);
}
var topLeft = reader.ReadPoint2D();
var bottomRight = reader.ReadPoint2D();
Bounds = Rectangle.FromCorners(topLeft, bottomRight);
// The following value is what you get if you do this calculation:
// width = (bottomRight.X - topLeft.X) * 0.5
// height = (bottomRight.Y + topLeft.Y) * 0.5
// value = sqrt(width * width + height * height)
//
// This looks like it's supposed to be a radius for this polygon trigger,
// presumably used for quick distance tests prior to testing if
// a point is inside the actual polygon.
//
// But there's a mistake... the height should instead be:
// height = (bottomRight.Y - topLeft.Y) * 0.5
//
// As it is, this "radius" is significantly larger than it should be.
var _ = reader.ReadSingle();
Radius = MathF.Sqrt(Bounds.Width * Bounds.Width + Bounds.Height * Bounds.Height);
var unknown = reader.ReadBoolean();
if (unknown)
{
throw new InvalidDataException();
}
}