01 Add conditions

In the Dark age, it is necessary to limit training villagers for research next Feudal age.

To train up to 24 villagers in the Dark age, write the following C # code.

using System;

using LibAoe2AISharp.Framework;
using LibAoe2AISharp.Specifications;

using static LibAoe2AISharp.Specifications.Ope;

namespace Aoe2AISharpSample
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine(new TrainVillager(25).ToScript());
        }
    }

    public class TrainVillager : Train
    {
        public TrainVillager(int count)
            : base(unit.villager)
        {
            Facts.Add(new unit_type_count_total(unit.villager, relop.lt, count));
            Facts.Add(new current_age(relop.eq, age.dark_age));
        }
    }
}

Then, it will output the following AI script.

;Train villager
(defrule
    (can-train villager) ;Can train villager?
    (unit-type-count-total villager < 25) ;Check count : unit villager
    (current-age == dark-age) ;Check dark-age
=>
    (train villager) ;Train villager
)