Animations.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.Input;

namespace TicTacToe {
    public interface IPositionable {
        Vector2 position { get; set; }
        void Draw(GameTime gameTime, SpriteBatch sb);
    }

    public class Wooble {
        static Random _rand;
        static Wooble() {
            _rand = new Random();
        }

        IPositionable _obj;
        public float _max;
        public float _animation;

        public Vector2 _pos;
        public Vector2 _origin;
        public float _elapsed;

        public Wooble(IPositionable obj, float max, float animationTime) {
            _obj = obj;
            _max = max;
            _animation = animationTime;

            _pos = obj.position;
            _origin = new Vector2();
            _origin += _pos;  // Copy original position
            _elapsed = 0.0f;
        }

        public void Reset() {
            _elapsed = 0.0f;
        }

        public void Draw(GameTime gameTime, SpriteBatch sb) {
            if (_elapsed < _animation) {
                var delta = (float)gameTime.ElapsedGameTime.TotalSeconds;
                _elapsed += delta;
                _elapsed = Math.Min(_elapsed, _animation);
                Vector2 _rvec = new Vector2((float)_rand.NextDouble(), (float)_rand.NextDouble());
                _rvec.Normalize();
                _obj.position = _origin + (_max * _rvec);

                if (_elapsed == _animation) {
                    _obj.position = _origin;
                }
            }
            _obj.Draw(gameTime, sb);
        }
    }

    public class Slide {
        public enum Movement {
            Linear,
            Elastic
        }

        IPositionable _obj;
        public Vector2 _offset;
        public float _animation;
        Movement _mov;

        public Vector2 _pos;
        public Vector2 _origin;
        public float _elapsed;

        public Slide(IPositionable obj, Vector2 start, float animationTime, Movement mov = Movement.Linear) {
            _obj = obj;
            _offset = start;
            _animation = animationTime;
            _mov = mov;
            _pos = obj.position;
            _origin = new Vector2();
            _origin += _pos;  // Copy original position
            _elapsed = 0.0f;
        }

        public void Reset() {
            _elapsed = 0.0f;
        }

        public void Draw(GameTime gameTime, SpriteBatch sb) {
            if (_elapsed < _animation) {
                var delta = (float)gameTime.ElapsedGameTime.TotalSeconds;
                _elapsed += delta;
                _elapsed = Math.Min(_elapsed, _animation);
                _obj.position = _origin + (_offset * (1 - (_elapsed / _animation)));
            }
            _obj.Draw(gameTime, sb);
        }
    }
}