private void WithdrawFrom(AdjacencyMask direction)
{
PathNode neighbor = TraverseConnection(direction);
if (neighbor != null)
{
neighbor.SetConnection(Reverse(direction), null);
}
}
private PathNode TraverseConnection(AdjacencyMask direction)
{
PathNode node;
if (!connectionDictionary.TryGetValue(direction, out node))
{
return(null);
}
return(node);
}
public void SetConnection(AdjacencyMask direction, PathNode connection)
{
if (connection != null)
{
adjacencies |= direction;
}
else
{
adjacencies &= ~direction;
}
connectionDictionary[direction] = connection;
UpdateVisual();
}
private AdjacencyMask Reverse(AdjacencyMask dir)
{
switch (dir)
{
case AdjacencyMask.north:
dir = AdjacencyMask.south;
break;
case AdjacencyMask.south:
dir = AdjacencyMask.north;
break;
case AdjacencyMask.east:
dir = AdjacencyMask.west;
break;
case AdjacencyMask.west:
dir = AdjacencyMask.east;
break;
}
return(dir);
}
private void UpdateVisual(AdjacencyMask direction)
{
meshDictionary[direction].SetActive((adjacencies & direction) != 0);
}