AntGame

using System;
using System.Collections.Generic;
using System.Linq;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Audio;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.GamerServices;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
using Microsoft.Xna.Framework.Media;

namespace AntGame
{

    /// <summary>
    /// This is the main type for your game
    /// </summary>
    ///
    public class Game1 : Microsoft.Xna.Framework.Game
    {

        private KeyboardState keyCurrent;
        private GamePadState myGamePad;
        private GraphicsDeviceManager graphics;
        private SpriteBatch spriteBatch;
        static public MouseState mouseState;
        static public MouseState previousState;
        static public Vector2 pos;
        static public Vector2 spawn;
        private Texture2D foodImage;
        private Texture2D hillImage;
        static public bool leftClickOccurred = false;
        static public bool rightClickOccurred = false;
        static public bool placeFood = false;
        static public bool placeHill = false;

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

        /// <summary>
        /// Allows the game to perform any initialization it needs to before starting to run.
        /// This is where it can query for any required services and load any non-graphic
        /// related content.  Calling base.Initialize will enumerate through any components
        /// and initialize them as well.
        /// </summary>
        protected override void Initialize()
        {
            // TODO: Add your initialization logic here

            base.Initialize();
        }

        /// <summary>
        /// LoadContent will be called once per game and is the place to load
        /// all of your content.
        /// </summary>
        protected override void LoadContent()
        {
            // Create a new SpriteBatch, which can be used to draw textures.
            spriteBatch = new SpriteBatch(GraphicsDevice);

            // TODO: use this.Content to load your game content here

            foodImage = Content.Load<Texture2D>("images\\Food");
            hillImage = Content.Load<Texture2D>("images\\AntHill");
        }

        /// <summary>
        /// UnloadContent will be called once per game and is the place to unload
        /// all content.
        /// </summary>
        protected override void UnloadContent()
        {
            // TODO: Unload any non ContentManager content here
        }

        /// <summary>
        /// Allows the game to run logic such as updating the world,
        /// checking for collisions, gathering input, and playing audio.
        /// </summary>
        /// <param name="gameTime">Provides a snapshot of timing values.</param>

        protected override void Update(GameTime gameTime)
        {
            previousState = mouseState;
            mouseState = Mouse.GetState(); //Needed to find the most current mouse states.
            pos.X = mouseState.X; //Change x pos to mouseX
            pos.Y = mouseState.Y; //Change y pos to mouseY
            Mouse.WindowHandle = Window.Handle;

            if (previousState.LeftButton == ButtonState.Released && mouseState.LeftButton == ButtonState.Pressed)
            {
                // React to the click
                leftClickOccurred = true;
            }
            if (previousState.RightButton == ButtonState.Released && mouseState.RightButton == ButtonState.Pressed)
            {
                // React to the click
                rightClickOccurred = true;
            }

            myGamePad = GamePad.GetState(PlayerIndex.One);

            if (myGamePad.IsConnected)
            {
                ProcessGamePad();
            }
            else
            {
                ProcessKeyboard();
            }

            base.Update(gameTime);
        }


        private void ProcessKeyboard()
        {
            keyCurrent = Keyboard.GetState();

            if (keyCurrent.IsKeyDown(Keys.Escape))
                this.Exit();
                // used for debugging
                // Console.WriteLine(" {0} " ,  value);
        }

        private void ProcessGamePad()
        {
            // Allows the game to exit
            if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
                this.Exit();
        }

        /// <summary>
        /// This is called when the game should draw itself.
        /// </summary>
        /// <param name="gameTime">Provides a snapshot of timing values.</param>

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

            if (leftClickOccurred)
            {
                spawn.X = pos.X; //Change spawn position X to current mouse position
                spawn.Y = pos.Y; //Change spawn position Y to current mouse position

                placeFood = true;

                leftClickOccurred = false;
            }

            if (placeFood)
            {
                spriteBatch.Begin();

                spriteBatch.Draw(foodImage, new Vector2(spawn.X, spawn.Y), Color.Brown);

                spriteBatch.End();
            }

            if (rightClickOccurred)
            {
                spawn.X = pos.X; //Change spawn position X to current mouse position
                spawn.Y = pos.Y; //Change spawn position Y to current mouse position

                placeHill = true;

                rightClickOccurred = false;
            }

            if (placeHill)
            {
                spriteBatch.Begin();

                spriteBatch.Draw(hillImage, new Vector2(spawn.X, spawn.Y), Color.Brown);

                spriteBatch.End();
            }

            base.Draw(gameTime);
        }


    }
}