using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;

namespace Game1
{
    /// <summary>
    /// This is the main type for your game.
    /// </summary>
    public class Game1 : Game
    {
        GraphicsDeviceManager graphics;
        SpriteBatch spriteBatch;
        SpriteFont Bold;
        private Texture2D tile;
        private Texture2D tractor;
        private Tractor tractorUnit = new Tractor();
        private Input input = new Input();



        public Game1()
        {
            graphics = new GraphicsDeviceManager(this);
            Content.RootDirectory = "Content";
        }

        protected override void Initialize()
        {
            // TODO: Add your initialization logic here
            base.Initialize();
            input.init(graphics, new Vector2(8,8), 56, 1);
            tractorUnit.updateSizing(input.getTileSize(), input.getSpacing());
            graphics.PreferredBackBufferWidth = (input.getTileSize() + input.getSpacing()) * (int)input.getSize().X;
            graphics.PreferredBackBufferHeight = (input.getTileSize() + input.getSpacing()) * (int)input.getSize().Y + 125;
            graphics.ApplyChanges();
        }

        protected override void LoadContent()
        {
            // Create a new SpriteBatch, which can be used to draw textures.
            spriteBatch = new SpriteBatch(GraphicsDevice);
            tile = Content.Load<Texture2D>("Tile");
            tractor = Content.Load<Texture2D>("Tractor");
            Bold = Content.Load<SpriteFont>("Font");
        }


        protected override void UnloadContent()
        {

        }


        protected override void Update(GameTime gameTime)
        {
            if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
                Exit();
            tractorUnit.updateSizing(input.getTileSize(), input.getSpacing());
            tractorUnit.updatePosition(input.getSize());
            tractorUnit.setSpeed(input.changeSpeed(tractorUnit.getSpeed()));
            input.changeSize();

            base.Update(gameTime);
        }


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

            spriteBatch.Begin();

            for(int i = 0; i < input.getSize().X; i++) //Draw the tiles
            {
                for (int j = 0; j < input.getSize().Y; j++)
                {
                    spriteBatch.Draw(tile, new Rectangle(i * (input.getTileSize() + input.getSpacing()), j * (input.getTileSize() + input.getSpacing()), input.getTileSize(), input.getTileSize()), Color.White);
                }
            }
            spriteBatch.Draw(tractor, new Rectangle((int)tractorUnit.getTargetPosition().X, (int)tractorUnit.getTargetPosition().Y, input.getTileSize(), input.getTileSize()) , Color.Red);                                                  //Draws the tractors target
            spriteBatch.Draw(tractor, new Rectangle((int)tractorUnit.getPos().X, (int)tractorUnit.getPos().Y, input.getTileSize(), input.getTileSize()), Color.Black);                                                           //Draws the tractor
            spriteBatch.DrawString(Bold, "Speed:" + tractorUnit.getSpeed().ToString(), new Vector2(10, input.getSize().Y * input.getTileSize() + 20) , Color.White);  //Draws the the speed

            spriteBatch.End();

            base.Draw(gameTime);
        }
    }
}