/// <summary>
/// returns the euclidean distance between both input corners
/// </summary>
public static float BetweenCornersEuclidean(Vector3Int cornerA, Vector3Int cornerB)
{
Vector3 a = HexConverter.CornerCoordToCartesianCoord(cornerA);
Vector3 b = HexConverter.CornerCoordToCartesianCoord(cornerB);
return(Vector3.Distance(a, b));
}
/// <summary>
/// returns the shortest path of corners from the origin to the target corner - optionally including the origin
/// </summary>
/// 
public static List <Vector3Int> PathAlongGrid(Vector3Int originCorner, Vector3Int targetCorner, bool includeOrigin, float horizontalNudgeFromOriginCenter = NudgePositive)
{
if (originCorner == targetCorner)
{
throw new System.ArgumentException("origin corner and target corner are the same - can't create a Path");
}
List <Vector3Int> corners = new List <Vector3Int>();
if (includeOrigin)
{
corners.Add(originCorner);
}
Vector3Int previousCorner = originCorner;
Vector3 cartesianOrigin = HexConverter.CornerCoordToCartesianCoord(originCorner) + new Vector3(horizontalNudgeFromOriginCenter, 0, 0);
Vector3 cartesianTarget = HexConverter.CornerCoordToCartesianCoord(targetCorner);
int dist = GetDistance.BetweenCorners(originCorner, targetCorner);
for (int i = 1; i <= dist; i++)
{
Vector3 lerped = Vector3.Lerp(cartesianOrigin, cartesianTarget, (1f / dist) * i);
Vector3Int tileCoord = HexConverter.CartesianCoordToTileCoord(lerped);
List <Vector3Int> cornerCoords = HexGrid.GetCorners.OfTile(tileCoord);
cornerCoords.RemoveAll(x => HexGrid.GetDistance.BetweenCorners(previousCorner, x) != 1);
Vector3Int closestCorner = new Vector3Int();
float minDistanceSoFar = float.MaxValue;
for (int j = 0; j < cornerCoords.Count; j++)
{
Vector3 worldPos = HexConverter.CornerCoordToCartesianCoord(cornerCoords[j]);
float distance = Vector3.Distance(worldPos, lerped);
if (distance < minDistanceSoFar)
{
closestCorner = cornerCoords[j];
minDistanceSoFar = distance;
}
}
corners.Add(closestCorner);
previousCorner = closestCorner;
}
return(corners);
}
public static Vector2 CornerCoordToNormalizedPosition(Vector3Int cornerCoordinate, float minX, float maxX, float minZ, float maxZ)
{
Vector3 cartesianCoord = HexConverter.CornerCoordToCartesianCoord(cornerCoordinate);
return(CartesianCoordToNormalizedPosition(cartesianCoord, minX, maxX, minZ, maxZ));
}