private void OnStartOfSimulation(object sender, EventArgs e) { id = 1; Herd = new List <Ruminant>(); PurchaseIndividuals = new List <Ruminant>(); LastIndividualChanged = new Ruminant(); List <IModel> childNodes = Apsim.Children(this, typeof(IModel)); foreach (IModel childModel in childNodes) { //cast the generic IModel to a specfic model. RuminantType ruminantType = childModel as RuminantType; foreach (var ind in ruminantType.CreateIndividuals()) { ind.SaleFlag = Common.HerdChangeReason.InitialHerd; AddRuminant(ind); } } }
/// <summary> /// Create the individual ruminant animals using the Cohort parameterisations. /// </summary> /// <returns></returns> public List <Ruminant> CreateIndividuals() { List <Ruminant> Individuals = new List <Ruminant>(); IModel parentNode = Apsim.Parent(this, typeof(IModel)); RuminantType parent = parentNode as RuminantType; // get Ruminant Herd resource for unique ids RuminantHerd ruminantHerd = Resources.RuminantHerd(); parent = this.Parent as RuminantType; if (StartingNumber > 0) { //TODO: get random generator from global store with seed Random rand = new Random(); for (int i = 1; i <= StartingNumber; i++) { object ruminantBase = null; if (this.Gender == Sex.Male) { ruminantBase = new RuminantMale(); } else { ruminantBase = new RuminantFemale(); } Ruminant ruminant = ruminantBase as Ruminant; ruminant.ID = ruminantHerd.NextUniqueID; ruminant.BreedParams = parent; ruminant.Breed = parent.Breed; ruminant.HerdName = parent.Name; ruminant.Gender = Gender; ruminant.Age = StartingAge; ruminant.SaleFlag = Common.HerdChangeReason.None; if (Suckling) { ruminant.SetUnweaned(); } double u1 = rand.NextDouble(); double u2 = rand.NextDouble(); double randStdNormal = Math.Sqrt(-2.0 * Math.Log(u1)) * Math.Sin(2.0 * Math.PI * u2); ruminant.Weight = StartingWeight + StartingWeightSD * randStdNormal; ruminant.PreviousWeight = ruminant.Weight; if (this.Gender == Sex.Female) { RuminantFemale ruminantFemale = ruminantBase as RuminantFemale; ruminantFemale.DryBreeder = true; ruminantFemale.WeightAtConception = this.StartingWeight; ruminantFemale.NumberOfBirths = 0; } Individuals.Add(ruminantBase as Ruminant); } } return(Individuals); }