/// <summary>
///
/// </summary>
/// <param name="gridPos"></param>
/// <param name="connectionMatrix"></param>
/// <param name="offset"></param>
/// <param name="adjacentConnection"></param>
/// <param name="diagonalConnection">Up->TopRight, Right->BottomRight, Down->BottomLeft, Left->TopLeft</param>
/// <returns></returns>
public static void GetConnection(this GridPos gridPos, bool[,] connectionMatrix, GridPos offset, out GridPosR.OrientationFlag adjacentConnection, out GridPosR.OrientationFlag diagonalConnection)
{
adjacentConnection = GridPosR.OrientationFlag.None;
diagonalConnection = GridPosR.OrientationFlag.None;
GridPos localGP = gridPos + offset;
if (localGP.x < 0 || localGP.x >= connectionMatrix.GetLength(0) || localGP.z < 0 || localGP.z >= connectionMatrix.GetLength(1))
{
return;
}
if (localGP.x + 1 < connectionMatrix.GetLength(0) && connectionMatrix[localGP.x + 1, localGP.z])
{
adjacentConnection |= GridPosR.OrientationFlag.Right;
}
if (localGP.x - 1 >= 0 && connectionMatrix[localGP.x - 1, localGP.z])
{
adjacentConnection |= GridPosR.OrientationFlag.Left;
}
if (localGP.z + 1 < connectionMatrix.GetLength(1) && connectionMatrix[localGP.x, localGP.z + 1])
{
adjacentConnection |= GridPosR.OrientationFlag.Up;
}
if (localGP.z - 1 >= 0 && connectionMatrix[localGP.x, localGP.z - 1])
{
adjacentConnection |= GridPosR.OrientationFlag.Down;
}
if (localGP.x + 1 < connectionMatrix.GetLength(0) && localGP.z + 1 < connectionMatrix.GetLength(1) && connectionMatrix[localGP.x + 1, localGP.z + 1])
{
diagonalConnection |= GridPosR.OrientationFlag.Up;
}
if (localGP.x + 1 < connectionMatrix.GetLength(0) && localGP.z - 1 >= 0 && connectionMatrix[localGP.x + 1, localGP.z - 1])
{
diagonalConnection |= GridPosR.OrientationFlag.Right;
}
if (localGP.x - 1 >= 0 && localGP.z - 1 >= 0 && connectionMatrix[localGP.x - 1, localGP.z - 1])
{
diagonalConnection |= GridPosR.OrientationFlag.Down;
}
if (localGP.x - 1 >= 0 && localGP.z + 1 < connectionMatrix.GetLength(1) && connectionMatrix[localGP.x - 1, localGP.z + 1])
{
diagonalConnection |= GridPosR.OrientationFlag.Left;
}
}
public static void GetConnectionMatrix(this List <GridPos> gridPositions, out bool[,] connectionMatrix, out GridPos offset)
{
connectionMatrix = null;
offset = GridPos.Zero;
if (gridPositions.Count == 0)
{
return;
}
GridRect gridRect = gridPositions.GetBoundingRectFromListGridPos();
offset = -gridRect.position;
gridRect.position = GridPos.Zero;
connectionMatrix = new bool[gridRect.size.x, gridRect.size.z];
foreach (GridPos gp in gridPositions)
{
connectionMatrix[gp.x + offset.x, gp.z + offset.z] = true;
}
}