Running code dynamically in C# - c#-4.0

Question

I am working on a game in C#.
I have a list of events, that can happen. E.g
List<Event> _events = new List<Event>();
_events.Add(new Event("A goblin approaches", 2));
_events.Add(new Event("A gang of thieves approaches", 3));
_events.Add(new Event("Some money has been stolen", 3));
_events.Add(new Event("Three goblins approach", 4));
_events.Add(new Event("A guard dies of unknown causes",4));
The string in the Event constructor is the event name and the number is the difficulty.
I was wondering if I could also add code into the constructor that can be run later on if the event is called. I'd like different code in each event.
Something like
_events.Add(new Event("Some money has been stolen", 3, "Supply.Gold = Supply.Gold -50"));
_events[2].runcode
I hope this makes sense, thanks

Answer 1

With this approach you can create events with simple implementation. And also difficult events with a lot of code (by extending Event class).
public class EventContext
{
public int Gold { get; set; }
}
public interface IEvent
{
void Do(EventContext context);
}
public abstract class Event : IEvent
{
protected Event(string title, int difficulty)
{
Title = title;
Difficulty = difficulty;
}
public string Title { get; private set; }
public int Difficulty { get; private set; }
public abstract void Do(EventContext context);
}
public class SimpleEvent : Event
{
private readonly Action<EventContext> _callback;
public SimpleEvent(string title, int difficulty, Action<EventContext> callback)
: base(title, difficulty)
{
_callback = callback;
}
public override void Do(EventContext context)
{
_callback(context);
}
}
internal class Program
{
private static void Main(string[] args)
{
var gameContext = new EventContext {Gold = 100};
var events = new List<IEvent>();
events.Add(new SimpleEvent("Some money has been stolen", 3, context => context.Gold -= 10));
events.First().Do(gameContext);
}
}
But I believe it can be better to separate event type and event handler.