private static LevelBlockDetails GenerateOrUpdateBlock(Editor ed, Database db, GenerateArgs args)
{
if (IsNewBlock(ed))
{
var endPoint = ed.PromptForPosition(Resources.Command_Prompt_SelectEndPoint);
if (!endPoint.HasValue)
{
return(LevelBlockDetails.CreateEmpty());
}
var levelArgs = CreateNewBlockLevelBlockArgs(args, endPoint.Value);
return(LevelBlockHelper.NewLevelBlockAtPoint(db, levelArgs));
}
var trans = db.TransactionManager.TopTransaction;
var existing = LevelBlockHelper.GetPromptedBlockDetails(Resources.Command_Prompt_SelectExistingLevelBlock, ed, trans);
if (!existing.IsValid)
{
return(LevelBlockDetails.CreateEmpty());
}
if (args.HasLevel)
{
return(LevelBlockHelper.UpdateExistingLevelBlock(existing.BlockReference, args.BlockLevel));
}
var endLevel = CalculateLevel(args.StartPoint, existing.Point3d, args.StartLevel, args.Gradient);
return(LevelBlockHelper.UpdateExistingLevelBlock(existing.BlockReference, endLevel));
}
