private Tile SelectNeighbour(RaycastHit hit)
{
var offset = hit.point.x - hit.transform.position.x;
var offsetY = hit.point.y - hit.transform.position.y;
HexDirection dir, dir2nd;
if (offset < 0f)
{
if (offsetY < 0f)
{
dir = HexDirection.SE;
dir2nd = HexDirection.SE;
}
else
{
dir = HexDirection.E;
dir2nd = HexDirection.SE;
}
}
else
{
if (offsetY < 0f)
{
dir = HexDirection.SW;
dir2nd = HexDirection.SW;
}
else
{
dir = HexDirection.W;
dir2nd = HexDirection.SW;
}
}
//top
if (hit.transform.CompareTag(FirstRowTag))
{
return(grid.Nearest(hit.point));
}
//bubble hit
var bubble = hit.transform.GetComponentInParent <Bubble>();
var tileHit = grid.Get(bubble);
var newTile = grid.Neighbour(tileHit, dir);
if (grid.Get(newTile))
{
newTile = grid.Neighbour(tileHit, dir2nd);
}
if (grid.Get(newTile))
{
return(null);
}
return(newTile);
}
bool IsAttached(Bubble bubble, HashSet <Bubble> alreadyChecked = null)
{
if (bubble == null)
{
return(false);
}
if (alreadyChecked == null)
{
alreadyChecked = new HashSet <Bubble>();
}
alreadyChecked.Add(bubble);
//check self
var cubeIndex = grid.Get(bubble).Index;
if (cubeIndex.y == 0)
{
// verified
return(true);
}
//check others
foreach (var direction in looseCheck)
{
var checkBubble = grid.Neighbour(bubble, direction);
if (!alreadyChecked.Contains(checkBubble) && IsAttached(checkBubble, alreadyChecked))
{
return(true);
}
}
return(false);
}
private void OnDrawGizmos()
{
if (Application.isPlaying)
{
foreach (var bubble in grid.Bubbles)
{
var tile = grid.Get(bubble);
DrawTile(tile);
DrawBubble(bubble);
DrawConnection(tile, bubble);
}
}
}
private Tile BestTile(HashSet <Bubble> toJoin, IBubbleScore score)
{
int bestCount = 0;
Tile bestTile = null;
foreach (var bb in toJoin)
{
var newToJoin = new HashSet <Bubble>();
//candidates with value matching new score
ScoreNeighbours(bb, newToJoin, score);
if (newToJoin.Count > bestCount)
{
bestTile = grid.Get(bb);
bestCount = newToJoin.Count;
}
}
return(bestTile);
}