Events.cs

Siirry tämän tiedoston dokumentaatioon.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Jypeli
{
    public partial class Game
    {
        public class CustomEventHandler : Destroyable, Updatable
        {
            Func<bool> condition;
            Action handler;

            internal CustomEventHandler( Func<bool> condition, Action handler )
            {
                this.condition = condition;
                this.handler = handler;
            }

            public bool IsDestroyed { get; private set; }

            public bool IsUpdated { get { return true; } }

            public event Action Destroyed;

            public void Destroy()
            {
                IsDestroyed = true;
                if ( Destroyed != null )
                    Destroyed();
            }

            public void Update( Time time )
            {
                if ( condition() )
                    handler();
            }
        }

        private SynchronousList<CustomEventHandler> handlers = null;

        public CustomEventHandler AddCustomHandler( Func<bool> condition, Action handler)
        {
            if ( handlers == null )
                handlers = new SynchronousList<CustomEventHandler>();

            var handlerObj = new CustomEventHandler( condition, handler );
            handlers.Add( handlerObj );
            return handlerObj;
        }

        public CustomEventHandler AddCustomHandler<T>( T obj, Predicate<T> condition, Action<T> handler )
        {
            return this.AddCustomHandler( () => condition( obj ), () => handler( obj ) );
        }

        public CustomEventHandler AddCustomHandler<T1, T2>( T1 obj1, T2 obj2, Func<T1, T2, bool> condition, Action<T1, T2> handler )
        {
            return this.AddCustomHandler( () => condition( obj1, obj2 ), () => handler( obj1, obj2 ) );
        }

        public CustomEventHandler AddCustomHandler<T1, T2, T3>( T1 obj1, T2 obj2, T3 obj3, Func<T1, T2, T3, bool> condition, Action<T1, T2, T3> handler )
        {
            return this.AddCustomHandler( () => condition( obj1, obj2, obj3 ), () => handler( obj1, obj2, obj3 ) );
        }

        protected void UpdateHandlers( Time time )
        {
            if (handlers == null)
                return;

            handlers.Update( time );
        }
    }
}