public bool TryDeserialize(string data, [NotNullWhen(true)] out IEntity?entity)
{
entity = null;
var bits = data.Split('.', 2);
if (bits.Length != 2)
{
return(false);
}
if (!bits[0].Equals(nameof(CrossTrack)))
{
return(false);
}
var track = new CrossTrack()
{
Happy = bool.Parse(bits[1])
};
entity = track;
return(true);
}
public bool TryCreateEntity(int column, int row, bool isPartOfDrag, [NotNullWhen(true)] out Track?entity)
{
var neighbours = TrackNeighbors.GetConnectedNeighbours(_layout.ToLayout(), column, row, emptyIsConsideredConnected: true);
// if they click and its the perfect spot for a cross track, just do it
if (!isPartOfDrag && neighbours.Count == 4)
{
entity = new CrossTrack();
return(true);
}
if (isPartOfDrag)
{
if (neighbours.Count == 4)
{
entity = new CrossTrack();
return(true);
}
// if they're dragging, we're looking for them to complete an intersection
neighbours = TrackNeighbors.GetConnectedNeighbours(_layout.ToLayout(), column - 1, row);
if (neighbours.Count == 3 && neighbours.Right is null)
{
entity = new Track()
{
Direction = TrackDirection.Horizontal
};
_layout.Set(column - 1, row, new CrossTrack());
return(true);
}
neighbours = TrackNeighbors.GetConnectedNeighbours(_layout.ToLayout(), column, row - 1);
if (neighbours.Count == 3 && neighbours.Down is null)
{
entity = new Track()
{
Direction = TrackDirection.Vertical
};
_layout.Set(column, row - 1, new CrossTrack());
return(true);
}
neighbours = TrackNeighbors.GetConnectedNeighbours(_layout.ToLayout(), column + 1, row);
if (neighbours.Count == 3 && neighbours.Left is null)
{
entity = new Track()
{
Direction = TrackDirection.Horizontal
};
_layout.Set(column + 1, row, new CrossTrack());
return(true);
}
neighbours = TrackNeighbors.GetConnectedNeighbours(_layout.ToLayout(), column, row + 1);
if (neighbours.Count == 3 && neighbours.Up is null)
{
entity = new Track()
{
Direction = TrackDirection.Vertical
};
_layout.Set(column, row + 1, new CrossTrack());
return(true);
}
}
entity = null;
return(false);
}