Game1.cs

using System;
using System.Collections.Generic;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;

namespace EngineTest.MacOS
{
    public class Game1 : Game
    {
        GraphicsDeviceManager graphics;
        SpriteBatch spriteBatch;

        private List<Entity> _entities;


        public Game1()
        {
            graphics = new GraphicsDeviceManager(this);
            Content.RootDirectory = "Content";
            graphics.IsFullScreen = false;
            graphics.PreferredBackBufferHeight = 720;
            graphics.PreferredBackBufferWidth = 1280;

        }

        protected override void Initialize()
        {

            base.Initialize();

        }


        protected override void LoadContent()
        {

            spriteBatch = new SpriteBatch(GraphicsDevice);
            var playerTexture = Content.Load<Texture2D>("box");
            var blockTexture = Content.Load<Texture2D>("Block");
            var font = Content.Load<SpriteFont>("font");
            _entities = new List<Entity>()
            {
                new Player(playerTexture)
                {
                    Position = new Vector2(100, 200),
                },
                new Block(blockTexture)
                {
                    Position = new Vector2(120, 384),
                },
                new Block(blockTexture)
                {
                    Position = new Vector2(120, 368),
                },
                new Block(blockTexture)
                {
                    Position = new Vector2(120, 352),
                },
                new Block(blockTexture)
                {
                    Position = new Vector2(120, 336),
                },
            };
            for (var i = 0f; i < 1280/16f; i++)
            {
                _entities.Add(
                    new Block(blockTexture)
                    {
                        Position = new Vector2(i*16, 400),

                    }
                );
            }

        }


        protected override void Update(GameTime gameTime)
        {

            if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
                Exit();
            foreach (var entity in _entities)
                entity.Update(gameTime, _entities);

            base.Update(gameTime);
        }

        protected override void Draw(GameTime gameTime)
        {
            graphics.GraphicsDevice.Clear(Color.CornflowerBlue);

            spriteBatch.Begin();
            foreach (var entity in _entities)
                entity.Draw(spriteBatch);
            spriteBatch.End();

            base.Draw(gameTime);
        }
    }
}