1

So i’m trying to make this dictionary survive recompiles, but i don’t know how.

public class HexGraph : MonoBehaviour {
    
        public Dictionary<HexCell, List<Edge>> edges = new
            Dictionary<HexCell, List<Edge>>();  
    }

Here is the Edge struct, if that makes a difference.

public struct Edge : IComparable<Edge> {

    public int CompareTo (Edge other) {
        return cost.CompareTo(other.cost);
    }

    public HexCell connection; 
    public float cost;

    public Edge (HexCell connection, float cost) {
        this.connection = connection;
        this.cost = cost;
    }
}

EDIT

So i tried what RobAnthem suggested, but couldn’t make it work, so instead i updated my dictionary OnEnable()

I’m still marking his answer as correct, because i’m sure it was my fault it didn’t work.

2

Basic binary serialization

IFormatter formatter = new BinaryFormatter();  
Stream stream = new FileStream("edges.bin", FileMode.Create, FileAccess.Write, FileShare.None);  
formatter.Serialize(stream, edges);  
stream.Close();

Basic binary deserialization

FileStream fs = new FileStream("edges.bin", FileMode.Open);
IFormatter formatter = new BinaryFormatter();  
edges = (Dictionary<HexCell, List<Edge>>)formatter.Deserialize(fs);  
fs.Close();