using System;
using System.Diagnostics;


namespace SpaceInvaders
{
    public class Image : DLink
    {
        //-------------------------------------------------------------------
        //  FIELDS
        //-------------------------------------------------------------------

        public enum ImageName
        {
            Crab_Open,
            Crab_Closed,
            Squid_Open,
            Squid_Closed,
            Octopus_Open,
            Octopus_Closed,
            Alien_Explosion,

            UFO,

            Bomb_Straight,

            Bomb_Zigzag0,
            Bomb_Zigzag1,
            Bomb_Zigzag2,
            Bomb_Zigzag3,
            Bomb_Cross,

            Ship,
            Missile,

            Brick,
            BrickLeft_Top0,
            BrickLeft_Top1,
            BrickLeft_Bottom,
            BrickRight_Top0,
            BrickRight_Top1,
            BrickRight_Bottom,

            HotPink,
            Uninitialized
        }

        public Image.ImageName name;
        private Texture pTexture;
        private Azul.Rect poRect;


        //-------------------------------------------------------------------
        //  PUBLIC METHODS
        //-------------------------------------------------------------------

        public Image()
        {
            this.name = ImageName.Uninitialized;
            this.pTexture = null;

            //LTN: owner: each img has associated rect
            this.poRect = new Azul.Rect();
        }


        //-------------------------------------------------------------------
        //  PUBLIC METHODS
        //-------------------------------------------------------------------

        public void SetImage(ImageName name, Texture pTexture,  float x, float y, float sx, float sy)
        {
            Debug.Assert(pTexture != null);
            Debug.Assert(poRect != null);

            this.name = name;
            this.pTexture = pTexture;
            this.poRect.Set(x, y, sx, sy);
        }

        public Azul.Texture GetAzulTexture()
        {
            return this.pTexture.GetAzulTexture();
        }

        public Azul.Rect GetAzulRect()
        {
            return this.poRect;
        }


        //-------------------------------------------------------------------
        //  OVERRIDDEN METHODS
        //-------------------------------------------------------------------

        public override bool Compare(Node pNode)
        {
            //check incoming
            Debug.Assert(pNode != null);

            Image pImageB = (Image)pNode;
            if(this.name == pImageB.name)
            {
                return true;
            }

            return false;
        }

        public override object GetName()
        {
            return this.name;
        }

        public override void Reset()
        {
            this.Clear();
        }

        public override void PrintStats()
        {
            Debug.WriteLine("Name: {0} --> {1}", this.name, this.GetHashCode());
            Debug.WriteLine("Rect: [ x-{0} y-{1} sx-{2} sy-{3} ]", this.poRect.x, this.poRect.y, this.poRect.width, this.poRect.height);
            Debug.WriteLine("Rect: {0}", poRect.GetHashCode());
            
            base.PrintStats();
        }


        //-------------------------------------------------------------------
        //  PRIVATE METHODS
        //-------------------------------------------------------------------

        private void Clear()
        {
            Debug.Assert(this.poRect != null);

            this.name = ImageName.Uninitialized;
            this.pTexture = null;
            this.poRect.Clear();
        }


    } //end class

} //end namespace