/// <summary>
/// Determines whether this hex is within a specified rectangle.
/// </summary>
/// <returns><c>true</c> if this instance is within the specified rectangle; otherwise, <c>false</c>.</returns>
public bool IsWithinRectangle(HexCoord cornerA, HexCoord cornerB)
{
if (r > cornerA.r && r > cornerB.r || r < cornerA.r && r < cornerB.r)
{
return(false);
}
bool reverse = cornerA.O > cornerB.O; // Travel right to left.
bool offset = cornerA.r % 2 != 0; // Starts on an odd row, bump alternate rows left.
bool trim = Math.Abs(cornerA.r - cornerB.r) % 2 == 0; // Even height, trim alternate rows.
bool odd = (r - cornerA.r) % 2 != 0; // This is an alternate row.
int width = Math.Abs(cornerA.O - cornerB.O);
bool hasWidth = width != 0;
if (reverse && (odd && (trim || !offset) || !(trim || offset || odd)) ||
!reverse && (trim && odd || offset && !trim && hasWidth))
{
width -= 1;
}
int x = (O - cornerA.O) * (reverse? -1: 1);
if (reverse && odd && !offset ||
!reverse && offset && odd && hasWidth)
{
x -= 1;
}
return(x <= width && x >= 0);
}
/// <summary>
/// Get the corners of a QR-space rectangle containing every cell touching an XY-space rectangle.
/// </summary>
public static HexCoord[] CartesianRectangleBounds(Vector2 cornerA, Vector2 cornerB)
{
Vector2 min = new Vector2(Math.Min(cornerA.x, cornerB.x), Math.Min(cornerA.y, cornerB.y));
Vector2 max = new Vector2(Math.Max(cornerA.x, cornerB.x), Math.Max(cornerA.y, cornerB.y));
HexCoord[] results =
{
HexCoord.AtPosition(min),
HexCoord.AtPosition(max)
};
Vector2 pos = results[0].Position();
if ((pos + corners[0]).y <= min.y || (pos + corners[5]).y >= min.y)
{
results[0] += neighbors[4];
}
else if ((pos + corners[1]).x <= min.x)
{
results[0] += neighbors[3];
}
pos = results[1].Position();
if ((pos + corners[2]).y <= max.y || (pos + corners[3]).y >= max.y)
{
results[1] += neighbors[1];
}
else if ((pos + corners[1]).x >= max.x)
{
results[1] += neighbors[0];
}
return(results);
}
public bool Is(HexCoord hex) {
return this.q == hex.q && this.r == hex.r;
}
/// <summary>
/// Change the Q and R values of this <see cref="Settworks.Hexagons.HexCoordinate"/> to those
/// of the specified <see cref="Settworks.Hexagons.HexCoord"/>.
/// </summary>
/// <param name="hex"><see cref="Settworks.Hexagons.HexCoord"/> to become.</param>
public void Become(HexCoord hex) {
q = hex.q;
r = hex.r;
}
/// <summary>
/// Initializes a new instance of the <see cref="Settworks.Hexagons.HexCoordinate"/> class
/// duplicating the Q and R values of a specified <see cref="Settworks.Hexagons.HexCoord"/>.
/// </summary>
/// <param name="hex"><see cref="Settworks.Hexagons.HexCoord"/> to duplicate.</param>
public HexCoordinate(HexCoord hex) {
Become(hex);
}
/// <summary>
/// Distance between two hexes.
/// </summary>
public static int Distance(HexCoord a, HexCoord b)
{
return((a - b).AxialLength());
}
public bool Is(HexCoord hex)
{
return(this.q == hex.q && this.r == hex.r);
}
/// <summary>
/// Initializes a new instance of the <see cref="Settworks.Hexagons.HexCoordinate"/> class
/// duplicating the Q and R values of a specified <see cref="Settworks.Hexagons.HexCoord"/>.
/// </summary>
/// <param name="hex"><see cref="Settworks.Hexagons.HexCoord"/> to duplicate.</param>
public HexCoordinate(HexCoord hex)
{
Become(hex);
}
/// <summary>
/// Change the Q and R values of this <see cref="Settworks.Hexagons.HexCoordinate"/> to those
/// of the specified <see cref="Settworks.Hexagons.HexCoord"/>.
/// </summary>
/// <param name="hex"><see cref="Settworks.Hexagons.HexCoord"/> to become.</param>
public void Become(HexCoord hex)
{
q = hex.q;
r = hex.r;
}
/// <summary>
/// Distance between two hexes.
/// </summary>
public static int Distance(HexCoord a, HexCoord b) {
return (a - b).AxialLength();
}
/// <summary>
/// Determines whether this hex is within a specified rectangle.
/// </summary>
/// <returns><c>true</c> if this instance is within the specified rectangle; otherwise, <c>false</c>.</returns>
public bool IsWithinRectangle(HexCoord cornerA, HexCoord cornerB) {
if (r > cornerA.r && r > cornerB.r || r < cornerA.r && r < cornerB.r)
return false;
bool reverse = cornerA.O > cornerB.O; // Travel right to left.
bool offset = cornerA.r % 2 != 0; // Starts on an odd row, bump alternate rows left.
bool trim = Math.Abs(cornerA.r - cornerB.r) % 2 == 0; // Even height, trim alternate rows.
bool odd = (r - cornerA.r) % 2 != 0; // This is an alternate row.
int width = Math.Abs(cornerA.O - cornerB.O);
bool hasWidth = width != 0;
if (reverse && (odd && (trim || !offset) || !(trim || offset || odd))
|| !reverse && (trim && odd || offset && !trim && hasWidth))
width -= 1;
int x = (O - cornerA.O) * (reverse? -1: 1);
if (reverse && odd && !offset
|| !reverse && offset && odd && hasWidth)
x -= 1;
return (x <= width && x >= 0);
}
public static List<HexCoord> LineDraw(HexCoord a, HexCoord b)
{
var n = Distance(a, b);
List<HexCoord> results = new List<HexCoord>();
for (int i = 0; i < n; i++)
{
var cubelerp = CubeLerp(HexToCube(a), HexToCube(b), 1.0f / n * i);
results.Add(CubeToHex(CubeRound(cubelerp)));
}
return results;
}
/// <summary>
/// Cube coordinates.
/// </summary>
public static Vector3 HexToCube(HexCoord h)
{
return new Vector3(h.q, -h.q - h.r, h.r);
}
public static HexCoord HexRound(HexCoord h)
{
return CubeToHex(CubeRound(HexToCube(h)));
}
