using System;

using System.Collections.Generic;

​

public class StimGenerator

{

    private Random random;

    private int noGo;

    private List<int> rest;

    private double percentNoGo;

    private int noGoDistance;

    private int currentDistance;

    public StimGenerator(int sessionNum, int blockNum, int noGo, double percentNoGo, int noGoDistance) {

        this.random = new Random(sessionNum * 1000 + blockNum);

        List<int> allNumbers = new List<int> {1,2,3,4,5,6,7,8,9};

        allNumbers.Remove(noGo);

        this.rest = allNumbers;

        this.noGo = noGo;

        this.percentNoGo = percentNoGo;

        this.noGoDistance = noGoDistance;

        this.currentDistance = 0;

    }

    public int NextStim() {

        double next = this.random.NextDouble();

        if (this.currentDistance > this.noGoDistance && next < this.percentNoGo) {

            this.currentDistance = 0;

            return this.noGo;

        }

        this.currentDistance++;

        return this.rest[this.random.Next(8)];

    }

}

public class Program

{

    public static void Main()

    {

        StimGenerator sg = new StimGenerator(1, 1, 3, 0.10, 5);

        for (int i=0; i<50; i++) {

            Console.Write(sg.NextStim());

            Console.Write(" ");

        }

        Console.WriteLine("\n---");

        StimGenerator sg2 = new StimGenerator(1, 1, 3, 0.10, 5);

        for (int i=0; i<50; i++) {

            Console.Write(sg2.NextStim());

            Console.Write(" ");

        }

        Console.WriteLine("\n---");

        StimGenerator sg3 = new StimGenerator(1, 2, 3, 0.10, 5);

        for (int i=0; i<50; i++) {

            Console.Write(sg3.NextStim());

            Console.Write(" ");

        }

        Console.WriteLine("\n---");

        StimGenerator sg4 = new StimGenerator(2, 21, 3, 0.10, 5);

        for (int i=0; i<50; i++) {

            Console.Write(sg4.NextStim());

            Console.Write(" ");

        }

        Console.WriteLine("\n---");

    }

}