/// <summary>
/// It apply a Star norm to a given point.
/// </summary>
/// <param name="point">Point to apply the operation.</param>
private static float StarNorm(GridPoint2 point)
{
var x = point.X;
var y = point.Y;
return(Mathf.Min(Mathf.Max(x, y, -x - y), Mathf.Max(-x, -y, x + y)));
}
public static IImplicitShape <GridPoint2> PointyHexThinRectangle(GridPoint2 dimensions)
{
return(new FunctionShape <GridPoint2>(point =>
point.X >= -GLMathf.FloorDiv(point.Y, 2) &&
point.X + GLMathf.FloorMod(point.Y, 2) < -GLMathf.FloorDiv(point.Y, 2) + dimensions.X &&
point.Y >= 0 &&
point.Y < dimensions.Y));
}
public static IImplicitShape <GridPoint2> FlatHexThinRectangle(GridPoint2 dimensions)
{
return(new FunctionShape <GridPoint2>(point =>
point.Y >= -(GLMathf.FloorDiv(point.X, 2)) &&
point.Y + GLMathf.FloorMod(point.X, 2) < -(GLMathf.FloorDiv(point.X, 2)) + dimensions.Y &&
point.X >= 0 &&
point.X < dimensions.X));
}
public static IImplicitShape <GridPoint2> HexRectangle(GridPoint2 dimensions)
{
return(new FunctionShape <GridPoint2>(point =>
point.Y >= 0 &&
point.Y < dimensions.Y &&
point.X >= -GLMathf.FloorDiv(point.Y, 2) &&
point.X < -GLMathf.FloorDiv(point.Y, 2) + dimensions.X));
}
private void Move()
{
if (!keepDirectionForFrame)
{
CurrentDirection = CurrentAttemptedDirection;
}
Vector3 dir = Grid.GridMap.GridToWorld(CurrentDirection);
UpdatePosition(dir);
UpdateRotation(dir);
keepDirectionForFrame = false;
}
public override TCell this[GridPoint2 point]
{
get
{
var accessPoint = point - shape.Bounds.Point;
return(cells[accessPoint.X, accessPoint.Y]);
}
set
{
var accessPoint = point - shape.Bounds.Point;
cells[accessPoint.X, accessPoint.Y] = value;
}
}
public static Grid2 <float> ImageToGreyScaleGrid(Texture2D texture, int xOffset, int yOffset)
{
var dimensions = new GridPoint2(texture.width, texture.height);
var storageRect = new GridRect(GridPoint2.Zero, dimensions);
var implicitShape = ImplicitShape.Parallelogram(dimensions);
var explicitShape = implicitShape.ToExplicit(storageRect);
var grid = new Grid2 <float>(explicitShape);
var textureData = texture.GetPixels().Select(c => c.grayscale).ToArray();
grid.Fill(p => textureData[(p.X + xOffset) % texture.width + (texture.width * ((p.Y + yOffset) % texture.height))]);
return(grid);
}
public void Remove(GridPoint2 point)
{
if (grid.Contains(point))
{
var shape = shapes[point];
if (shape != null)
{
foreach (var shapePoint in shape.Points)
{
grid[shapePoint] = default(T);
shapes[shapePoint] = null;
}
}
}
}
public IExplicitShape <GridPoint2> Place(IExplicitShape <GridPoint2> shape, GridPoint2 point, T item)
{
if (!Contains(shape, point))
{
throw new InvalidOperationException("Shape is not completely in grid.");
}
if (!IsEmpty(shape, point))
{
throw new InvalidOperationException("Shape is not completely empty.");
}
var offsetShape = shape.Translate(point);
foreach (var shapePoint in offsetShape.Points)
{
grid[shapePoint] = item;
shapes[shapePoint] = offsetShape;
}
return(offsetShape);
}
public IEnumerable <GridPoint2> GetSpiralIterator(GridPoint2 origin, int ringCount)
{
var point = origin;
yield return(point);
for (var k = 1; k < ringCount; k++)
{
point += RectPoint.NorthWest;
for (var i = 0; i < 4; i++)
{
for (var j = 0; j < 2 * k; j++)
{
point += SpiralIteratorDirections[i];
if (Contains(point))
{
yield return(point);
}
}
}
}
}
public bool IsEmpty(IExplicitShape <GridPoint2> shape, GridPoint2 point)
{
var offsetShape = shape.Translate(point);
return(offsetShape.Points.All(p => shapes[p] == null));
}
public bool IsEmpty(GridPoint2 point)
{
return(shapes[point] == null);
}
public bool Contains(IExplicitShape <GridPoint2> shape, GridPoint2 point)
{
var offsetShape = shape.Translate(point);
return(offsetShape.Points.All(p => grid.Contains(p)));
}
public IExplicitShape <GridPoint2> GetShape(GridPoint2 point)
{
return(shapes[point]);
}
public static IEnumerable <GridPoint2> GetOrthogonalAndDiagonalNeighbors(GridPoint2 point)
{
return(point.GetVectorNeighbors(OrthogonalAndDiagonalDirections));
}
/// <summary>
/// Creates a 2D Translate Shape.
/// </summary>
/// <param name="shape">Base Shape to translate.</param>
/// <param name="offset">Offset of the translation.</param>
public static IImplicitShape <GridPoint2> Translate(this IImplicitShape <GridPoint2> shape, GridPoint2 offset)
{
return(new TranslationShape2(shape, offset));
}
/// <summary>
/// Creates a 2D HalfPlane Shape given two points.
/// </summary>
/// <param name="point1">Base point 1 of the Plane.</param>
/// <param name="point2">Base point 2 of the Plane.</param>
public static IImplicitShape <GridPoint2> HalfPlane(GridPoint2 point1, GridPoint2 point2)
{
return(new Halfplane(point1, point2));
}
public static GridPoint2 Mul(this GridPoint2 v, Matrixi22 m)
{
return(new GridPoint2(
v.X * m.a + v.Y * m.c,
v.X * m.b + v.Y * m.d));
}
public static GridPoint2 ReflectAboutX(GridPoint2 point)
{
return(new GridPoint2(point.X, -point.Y));
}
public static GridPoint2 Rotate270(GridPoint2 point)
{
return(new GridPoint2(point.Y, -point.X));
}
public static GridPoint2 Rotate180(GridPoint2 point)
{
return(new GridPoint2(-point.X, -point.Y));
}
public static int DownTriPseudoNorm(GridPoint2 point)
{
return(Mathf.Max(-point.X, -point.Y, point.X + point.Y));
}
/// <summary>
/// Creates a 2D Single Shape with a given center value.
/// </summary>
/// <param name="point">Value for the center of the single shape.</param>
public static IImplicitShape <GridPoint2> Single2(GridPoint2 point)
{
return(new SingleShape2(point));
}
public static int StarNorm(GridPoint2 point)
{
return(Mathf.Min(UpTriPseudoNorm(point), DownTriPseudoNorm(point)));
}
/// <summary>
/// Creates a 2D Product Shape.
/// </summary>
/// <param name="shape1">Base shape to make the product operation.</param>
/// <param name="shape2">Shape used for the product operation.</param>
/// <param name="scale">Scale factor applied to the shape2.</param>
public static IImplicitShape <GridPoint2> Product(this IExplicitShape <GridPoint2> shape1,
IImplicitShape <GridPoint2> shape2, GridPoint2 scale)
{
return(new ProductShape2(shape1, shape2, scale));
}
public static int UpTriPseudoNorm(GridPoint2 point)
{
return(Mathf.Max(point.X, point.Y, -point.X - point.Y));
}
/// <summary>
/// Creates a 2D Parallelogram Shape.
/// </summary>
/// <param name="dimensions">Dimensions of the shape.</param>
public static IImplicitShape <GridPoint2> Parallelogram(GridPoint2 dimensions)
{
return(new ParallelogramShape(dimensions));
}
public void SetDirection(GridPoint2 nextDirection)
{
CurrentAttemptedDirection = nextDirection;
}
public static IImplicitShape <GridPoint2> HexFatRectangle(GridPoint2 dimensions)
{
return(PointyHexFatRectangle(dimensions));
}
public T this[GridPoint2 point]
{
get { return(grid[point]); }
}