Edge2 GetNextBoundaryFromEdge(Edge2 edge, ref Color[] pixels, int pWidth)
{
var x = (int)(edge.b.x);
var y = (int)(edge.b.y);
var hop = edge.b - edge.a;
if (hop.y >= 0 && pixels[(y + 1) * pWidth + x] != pixels[(y + 1) * pWidth + x + 1])
{
return(new Edge2(edge.b, new Vector2(x, y + 1)));
}
if (hop.x >= 0 && pixels[(y + 1) * pWidth + x + 1] != pixels[y * pWidth + x + 1])
{
return(new Edge2(edge.b, new Vector2(x + 1, y)));
}
if (hop.y <= 0 && pixels[y * pWidth + x + 1] != pixels[y * pWidth + x])
{
return(new Edge2(edge.b, new Vector2(x, y - 1)));
}
if (hop.x <= 0 && pixels[y * pWidth + x] != pixels[(y + 1) * pWidth + x])
{
return(new Edge2(edge.b, new Vector2(x - 1, y)));
}
return(null);
}
public bool Equals(Edge2 edge)
{
return(a.x == edge.a.x && a.y == edge.a.y && b.x == edge.b.x && b.y == edge.b.y);
}