private void SetPoint(RenderedPolygon renderedPolygon, Vector2F point, float size, Color color)
{
Span <Vector2F> points = stackalloc Vector2F[4];
points[0] = point + new Vector2F(-1f, -1f) * size / 2f;
points[1] = point + new Vector2F(1f, -1f) * size / 2f;
points[2] = point + new Vector2F(1f, 1f) * size / 2f;
points[3] = point + new Vector2F(-1f, 1f) * size / 2f;
Engine.Vector2FArrayCache.FromSpan(points);
renderedPolygon.CreateVertexesByVector2F(Engine.Vector2FArrayCache);
renderedPolygon.OverwriteVertexesColor(color);
renderedPolygon.SetDefaultIndexBuffer();
}
private void SetLine(RenderedPolygon renderedPolygon, Vector2F point1, Vector2F point2, Color color)
{
Span <Vector2F> positions = stackalloc Vector2F[4];
var vec = point2 - point1;
var side = new Vector2F(vec.Y, -vec.X).Normal;
positions[0] = point1 - side;
positions[1] = point1 + side;
positions[2] = point2 + side;
positions[3] = point2 - side;
Engine.Vector2FArrayCache.FromSpan(positions);
renderedPolygon.CreateVertexesByVector2F(Engine.Vector2FArrayCache);
renderedPolygon.OverwriteVertexesColor(color);
renderedPolygon.SetDefaultIndexBuffer();
}