/// <summary>
/// The distance between two coordinates. (Diagonal distance is treated the same as axis distance)
/// </summary>
/// <param name="cc1"></param>
/// <param name="cc2"></param>
/// <returns>Returns an int representing distance. Returns -1 if either input is not valid.</returns>
public static int SquareDistance(ChunkCoords cc1, ChunkCoords cc2)
{
if (!cc1.IsValid() || !cc2.IsValid())
{
return(-1);
}
cc1 = ConvertToUpRight(cc1);
cc2 = ConvertToUpRight(cc2);
int x = Mathf.Abs(cc1.x - cc2.x);
int y = Mathf.Abs(cc1.y - cc2.y);
return(Math.Max(x, y));
}
/// Converts the x and y components of a coordinate set so that they are easier to compare
public static ChunkCoords ConvertToUpRight(ChunkCoords cc)
{
if (cc.quadrant == Quadrant.UpperRight)
{
return(cc);
}
//check if it is in either of the two left-side quadrants
if (cc.quadrant == Quadrant.UpperLeft || cc.quadrant == Quadrant.LowerLeft)
{
cc.x = -cc.x - 1;
}
//check if it is in either of the two bottom quadrants
if (cc.quadrant == Quadrant.LowerRight || cc.quadrant == Quadrant.LowerLeft)
{
cc.y = -cc.y - 1;
}
cc.quadrant = Quadrant.UpperRight;
return(cc);
}
public static Vector2 GetCenterCell(ChunkCoords c, float chunkSize)
{
Vector2Pair bounds = GetCellArea(c, chunkSize);
return(new Vector2((bounds.a.x + bounds.b.x) / 2f, (bounds.a.y + bounds.b.y) / 2f));
}
