public static void GenerateRectangleNonAlloc(
Coordinates start,
Coordinates end, bool fill, int thickness, List <Coordinates> output)
{
DoubleCoords fixedCoordinates = CalculateCoordinatesForShapeRotation(start, end);
CalculateRectanglePoints(fixedCoordinates, output);
for (int i = 1; i < (int)Math.Floor(thickness / 2f) + 1; i++)
{
CalculateRectanglePoints(
new DoubleCoords(
new Coordinates(fixedCoordinates.Coords1.X - i, fixedCoordinates.Coords1.Y - i),
new Coordinates(fixedCoordinates.Coords2.X + i, fixedCoordinates.Coords2.Y + i)), output);
}
for (int i = 1; i < (int)Math.Ceiling(thickness / 2f); i++)
{
CalculateRectanglePoints(
new DoubleCoords(
new Coordinates(fixedCoordinates.Coords1.X + i, fixedCoordinates.Coords1.Y + i),
new Coordinates(fixedCoordinates.Coords2.X - i, fixedCoordinates.Coords2.Y - i)), output);
}
if (fill)
{
CalculateRectangleFillNonAlloc(start, end, thickness, output);
}
}
private static void CalculateRectangleFillNonAlloc(Coordinates start, Coordinates end, int thickness, List <Coordinates> output)
{
int offset = (int)Math.Ceiling(thickness / 2f);
DoubleCoords fixedCords = CalculateCoordinatesForShapeRotation(start, end);
DoubleCoords innerCords = new DoubleCoords
{
Coords1 = new Coordinates(fixedCords.Coords1.X + offset, fixedCords.Coords1.Y + offset),
Coords2 = new Coordinates(fixedCords.Coords2.X - (offset - 1), fixedCords.Coords2.Y - (offset - 1))
};
int height = innerCords.Coords2.Y - innerCords.Coords1.Y;
int width = innerCords.Coords2.X - innerCords.Coords1.X;
if (height < 1 || width < 1)
{
return;
}
int i = 0;
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
output.Add(new Coordinates(innerCords.Coords1.X + x, innerCords.Coords1.Y + y));
i++;
}
}
}
public static List <Coordinates> GenerateEllipseFromRect(DoubleCoords rect, List <Coordinates> listToFill = null)
{
float radiusX = (rect.Coords2.X - rect.Coords1.X) / 2.0f;
float radiusY = (rect.Coords2.Y - rect.Coords1.Y) / 2.0f;
float centerX = (rect.Coords1.X + rect.Coords2.X + 1) / 2.0f;
float centerY = (rect.Coords1.Y + rect.Coords2.Y + 1) / 2.0f;
return(GenerateMidpointEllipse(radiusX, radiusY, centerX, centerY, listToFill));
}
public static void GenerateEllipseNonAlloc(Coordinates start, Coordinates end, bool fill,
List <Coordinates> output)
{
DoubleCoords fixedCoordinates = CalculateCoordinatesForShapeRotation(start, end);
EllipseGenerator.GenerateEllipseFromRect(fixedCoordinates, output);
if (fill)
{
CalculateFillForEllipse(output);
}
}
private static void CalculateRectanglePoints(DoubleCoords coordinates, List <Coordinates> output)
{
for (int i = coordinates.Coords1.X; i < coordinates.Coords2.X + 1; i++)
{
output.Add(new Coordinates(i, coordinates.Coords1.Y));
output.Add(new Coordinates(i, coordinates.Coords2.Y));
}
for (int i = coordinates.Coords1.Y + 1; i <= coordinates.Coords2.Y - 1; i++)
{
output.Add(new Coordinates(coordinates.Coords1.X, i));
output.Add(new Coordinates(coordinates.Coords2.X, i));
}
}
