LogicalPointManager.cs

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using System.Collections.Generic;
 
public class LogicalPointManager : EClass
{
    public List<LogicalPoint> list = new List<LogicalPoint>();
 
    public Dictionary<int, LogicalPoint> dict = new Dictionary<int, LogicalPoint>();
 
    public HashSet<Point> refreshList = new HashSet<Point>();
 
    public virtual bool AllowBlock => false;
 
    public virtual LogicalPoint Create()
    {
        return null;
    }
 
    public LogicalPoint GetOrCreate(Point point)
    {
        if (!point.IsValid)
        {
            return null;
        }
        int index = point.index;
        LogicalPoint logicalPoint = dict.TryGetValue(index);
        if (logicalPoint == null)
        {
            if (!AllowBlock && point.cell.HasBlock)
            {
                return null;
            }
            logicalPoint = Create();
            logicalPoint.Set(point);
            list.Add(logicalPoint);
            dict.Add(index, logicalPoint);
        }
        return logicalPoint;
    }
 
    public LogicalPoint Refresh(Point point)
    {
        return GetOrCreate(point);
    }
 
    public void Remove(int key)
    {
        LogicalPoint item = dict[key];
        list.Remove(item);
        dict.Remove(key);
    }
}