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

namespace DemoOOP7
{
    class Building
    {
        // Attributes
        private List<ISecurityGuard> _guards;

        // Constructors
        public Building()
        {
            // Create the list
            _guards = new List<ISecurityGuard>();
        }

        // Properties

        // Methods
        public void AssignGuard(ISecurityGuard guard)
        {
            _guards.Add(guard);
        }

        public void StartPatrol()
        {
            //foreach (ISecurityGuard guard in _guards)
            //{
            //    guard.PatrolPerimeter();
            //}
            for (int i = 0; i < _guards.Count; i++)
            {
                _guards[i].PatrolPerimeter();
            }
        }
    }
}