/* Constructor */
public HexCell(HexGrid grid, int index, Vector3 center, HexCoordinate coordinate, Color color)
{
m_grid = grid;
m_index = index;
m_center = center;
m_hexCoordinate = coordinate;
m_color = color;
m_neighbors = new int[6]; // every hex has 6 neighbors // TODO only assign as many neighbors as actually exist [?] (corners and margins)
for (int i = 0; i < m_neighbors.Length; i++)
{
m_neighbors[i] = -1;
}
}
/* Generate Cell */
private void GenerateCell(int x, int z, int index)
{
Vector3 center = new Vector3(
(x + z * 0.5f - z / 2) * (HexMeshUtility.InnerRadius * 2f), // Applied z * 0.5 - z/2 to account for row displacement (z * 0.5 - ) (z / 2 - every second row, cells move one additional step)
0,
z * (HexMeshUtility.OuterRadius * 1.5f)
);
m_cells[index] = new HexCell(this, index, center, HexCoordinate.FromOffsetCoordinates(x, z), defaultColor);
// Set connections to the Left and Right
if (x > 0)
{
m_cells[index].SetNeighbor(HexDirection.Left, ref m_cells[index - 1]);
}
if (z > 0)
{
// Even rows
if ((z & 1) == 0) // bitwise and 1 => mask everything but last digit. if 0 => even
{
// Set connections BottomRight and TopLeft
m_cells[index].SetNeighbor(HexDirection.BottomRight, ref m_cells[index - m_cellCountX]);
// Set connections BottomLeft and TopRight
if (x > 0)
{
m_cells[index].SetNeighbor(HexDirection.BottomLeft, ref m_cells[index - m_cellCountX - 1]);
}
}
// Odd rows
else
{
// Set connections BottomLeft and TopRight
m_cells[index].SetNeighbor(HexDirection.BottomLeft, ref m_cells[index - m_cellCountX]);
// Set connections BottomRight and TopLeft
if (x < m_cellCountX - 1)
{
m_cells[index].SetNeighbor(HexDirection.BottomRight, ref m_cells[index - m_cellCountX + 1]);
}
}
}
AddCellToChunk(x, z, ref m_cells[index]);
}
/* Handle Input */
private HexCell HandleInput()
{
Ray inputRay = Camera.main.ScreenPointToRay(Input.mousePosition);
RaycastHit hit;
if (Physics.Raycast(inputRay, out hit))
{
Vector3 position = transform.InverseTransformPoint(hit.point);
HexCoordinate coordinate = HexCoordinate.FromPosition(position, HexMeshUtility.InnerRadius, HexMeshUtility.OuterRadius);
int index = coordinate.X + coordinate.Z * m_cellCountX + coordinate.Z / 2;
if (index < m_cells.Length)
{
return(m_cells[index]);
}
}
return(null);
}
public int DistanceTo(HexCoordinate other)
{
return(Mathf.Abs(x - other.x) + Mathf.Abs(Y - other.Y) + Mathf.Abs(z - other.z) / 2);
}
