using System;
using System.Collections.Generic;
using System.Text;
using Sunweaver.Commands.Attributes;

namespace Sunweaver.Commands
{
    [BasePair("Trigonometric cosine operation.  " +
              "Input angles are scaled such that [0, 360 degrees] becomes [0, 9000].  " +
              "Return values scaled from [-1,1] to [-9000, 9000].")]
    public class cos : Abstracts.UnaryOperation
    {
        public override void Operation(long a)
        {
            double angle = (double)a;
            angle /= DNASystem.UnitsInAFullCircle;
            angle *= 2 * Math.PI;
            VM.Stack.Push((long)Math.Round(DNASystem.UnitsInAFullCircle * Math.Cos(angle)));
        }
    }
}