using System.Xml.Serialization;
using Microsoft.Xna.Framework;
using Netcode;

namespace StardustCore.Animations
{
    /// <summary>A custom class used to deal with custom animations/</summary>
    public class Animation
    {
        /// <summary>The source rectangle on the texture to display.</summary>
        public Rectangle sourceRectangle;

        /// <summary>The duration of the frame in length.</summary>
        public int frameDuration;

        /// <summary>The duration until the next frame.</summary>
        public int frameCountUntilNextAnimation;

        [XmlIgnore]
        public NetFields NetFields { get; } = new NetFields();

        public Animation()
        {
            this.sourceRectangle = new Rectangle(0, 0, 16, 16);
            this.frameCountUntilNextAnimation = -1;
            this.frameDuration = -1;
        }

        /// <summary>Constructor that causes the animation frame count to be set to -1; This forces it to never change.</summary>
        /// <param name="SourceRectangle">The draw source for this animation.</param>
        public Animation(Rectangle SourceRectangle)
        {
            this.sourceRectangle = SourceRectangle;
            this.frameCountUntilNextAnimation = -1;
            this.frameDuration = -1;
        }

        /// <summary>Construct an instance.</summary>
        /// <param name="SourceRectangle">The draw source for this animation.</param>
        /// <param name="existForXFrames">How many on screen frames this animation stays for. Every draw frame decrements an active animation by 1 frame. Set this to -1 to have it be on the screen infinitely.</param>
        public Animation(Rectangle SourceRectangle, int existForXFrames)
        {
            this.sourceRectangle = SourceRectangle;
            this.frameDuration = existForXFrames;
        }

        /// <summary>Decrements the amount of frames this animation is on the screen for by 1.</summary>
        public void tickAnimationFrame()
        {
            this.frameCountUntilNextAnimation--;
        }

        /// <summary>This sets the animation frame count to be the max duration. I.E restart the timer.</summary>
        public void startAnimation()
        {
            this.frameCountUntilNextAnimation = this.frameDuration;
        }
    }
}