void toStartShadowLine(Vector2 pos, Vector2[] vertexs, World.Gate gate, Action<Vector2, Vector2> callback)
{
Vector2? a = null;
Vector2? b = null;
Action<Vector2> extremePoints = point =>
{
if (a == null)
{
a = point - pos; //����������� ������
b = point - pos; //������������ ������
}
var sample = point - pos;
if (a.Value.X * (-sample.Y) + a.Value.Y * sample.X > 0)
a = sample;
if (b.Value.X * (-sample.Y) + b.Value.Y * sample.X < 0)
b = sample;
};
if (gate == null)
vertexs.ForEach(extremePoints);
else
Vector.cutShape(pos, vertexs, new Segment2(gate.Vertexes[0].Position.ToVector2(), gate.Vertexes[1].Position.ToVector2()), extremePoints);
if (a != null)
callback(pos + a.Value, pos + b.Value);
}