using System;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;

class AnimationPlayer
{
    protected Animation animation;
    protected int frameIndex;
    protected float time;
    protected bool mirror;

    public AnimationPlayer()
    {
        this.mirror = false;
    }

    public bool Mirror
    {
        get { return mirror; }
        set { mirror = value; }
    }

    public void playAnimation(Animation anim)
    {
        if (this.animation == anim)
            return;
        this.animation = anim;
        this.frameIndex = 0;
        this.time = 0.0f;
    }

    public Animation Animation
    {
        get { return animation; }
    }

    public void Update(GameTime gameTime)
    {
        time += (float)gameTime.ElapsedGameTime.TotalSeconds;
        while (time > animation.FrameTime)
        {
            time -= animation.FrameTime;
            if (animation.IsLooping)
                frameIndex = (frameIndex + 1) % animation.CountFrames;
            else
                frameIndex = Math.Min(frameIndex + 1, animation.CountFrames - 1);
        }
    }

    public void Draw(GameTime gameTime, SpriteBatch spriteBatch, Vector2 position)
    {
        SpriteEffects spriteEffects = SpriteEffects.None;
        if (mirror)
            spriteEffects = SpriteEffects.FlipHorizontally;
        spriteBatch.Draw(animation.Sprite, position, animation.calculateFrame(frameIndex), Color.White,
            0.0f, animation.Origin, 1.0f, spriteEffects, 0.0f);
    }
}