public static PointInt[] GenerateNeighbors(long x, long y)
{
var result = new PointInt[4];
for (int i = 0; i < 4; i++)
{
result[i] = new PointInt(x + sx[i], y + sy[i]);
}
return(result);
}
public bool Equals(PointInt other)
{
if (ReferenceEquals(null, other))
{
return(false);
}
if (ReferenceEquals(this, other))
{
return(true);
}
return(other.X == this.X && other.Y == this.Y);
}
public PointInt(PointInt head)
: this(head.X, head.Y)
{
}
public static long VectInt(PointInt a, PointInt b, PointInt c)
{
return((b.X - a.X) * (c.Y - a.Y) - (b.Y - a.Y) * (c.X - a.X));
}
public static long VectInt(PointInt a, PointInt b)
{
return(a.X * b.Y - a.Y * b.X);
}
public int Sign(PointInt p)
{
return(Math.Sign(A * p.X + B * p.Y + C));
}
public bool ContainsPoint(PointInt p)
{
return(A * p.X + B * p.Y + C == 0);
}
public static List <PointInt> GenerateNeighborsWithBounds(this PointInt p, int n, int m)
{
return(GenerateNeighborsWithBounds(p.X, p.Y, n, m));
}
public static PointInt[] GenerateNeighbors(this PointInt p)
{
return(GenerateNeighbors(p.X, p.Y));
}
public LineInt(PointInt a, PointInt b)
{
A = a.Y - b.Y;
B = b.X - a.X;
C = a.X * b.Y - a.Y * b.X;
}
