Game1.cs

﻿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;
using Microsoft.Xna.Framework.Net;
using Microsoft.Xna.Framework.Storage;
using System.IO;

namespace LevelGame
{
    /// <summary>
    /// This is the main type for your game
    /// </summary>
    public class Game1 : Microsoft.Xna.Framework.Game
    {
        GraphicsDeviceManager graphics;
        SpriteBatch spriteBatch;

        Texture2D blockTexture1;
        Texture2D blockTexture2;

        Texture2D idleTexture;
        Texture2D runTexture;
        Texture2D digTexture;
        Texture2D jumpTexture;

        AnimatedSprite hero;

        public int Width;
        public int Height;

        List<Block> blocks;
        public List<int> blocksPlaces;  
        public string[] level;

        private SpriteFont hudFont;
        TimeSpan timeRemaining = TimeSpan.FromMinutes(0.25);

        static int ScrollX;
        static int ScrollY;
        int levelLength;

        int currentLevel;
        KeyboardState oldState;

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

            Width = graphics.PreferredBackBufferWidth = 400;
            Height = graphics.PreferredBackBufferHeight = 400;
        }

        private void DrawShadowedString(SpriteFont font, string value, Vector2 position, Color color)
        {
            spriteBatch.DrawString(font, value, position + new Vector2(1.0f, 1.0f), Color.Black);
            spriteBatch.DrawString(font, value, position, color);
        }
        private void DrawHud()
        {
            Rectangle titleSafeArea = GraphicsDevice.Viewport.TitleSafeArea;
            Vector2 hudLocation = new Vector2(titleSafeArea.X, titleSafeArea.Y);
            Vector2 center = new Vector2(titleSafeArea.X + titleSafeArea.Width / 2.0f,
                                         titleSafeArea.Y + titleSafeArea.Height / 2.0f);

            // Draw time remaining. Uses modulo division to cause blinking when the
            // player is running out of time.
            string timeString = "TIME: " + timeRemaining.Minutes.ToString("00") + ":" + timeRemaining.Seconds.ToString("00");
            Color timeColor = Color.Black;
            DrawShadowedString(hudFont, timeString, hudLocation, timeColor);


            // Determine the status overlay message to show.
            Texture2D status = null;
            if (timeRemaining == TimeSpan.Zero)
            {
                
            }

            if (status != null)
            {
                // Draw status message.
                Vector2 statusSize = new Vector2(status.Width, status.Height);
                spriteBatch.Draw(status, center - statusSize / 2, Color.White);
            }
        }

        public bool CollidesWithLevel(Rectangle rect)
        {
            foreach (Block block in blocks)
            {
                if (block.rect.Intersects(rect))
                {
                    if (/*(block.rect.Height >= 0) &&*/ (hero.isDigging) && (block.texture == blockTexture1))
                    {
                       
                        block.rect.Height = block.rect.Height-4;
                        block.rect.Width = block.rect.Width - 4;
                        block.rect.Location = new Point(block.rect.X + 2, block.rect.Y+2);
                        if (block.rect.Height<=0)
                        {
                            block.rect.Location = new Point(-100, -100);
                        }
                    }
                    else if ((hero.isDigging) && (block.texture == blockTexture2))
                    {

                        block.rect.Height = block.rect.Height - 2;
                        block.rect.Width = block.rect.Width - 2;
                        block.rect.Location = new Point(block.rect.X + 1, block.rect.Y + 1);
                        if (block.rect.Height <= 0)
                        {
                            block.rect.Location = new Point(-100, -100);
                        }
                    }
                    return true;
                }
            }
            return false;
        }
        public void DestroyBlock(Rectangle rect)
        {
            Block block = new Block(rect, blockTexture1);
            Rectangle place = rect;
            foreach (Block bl in blocks)
            {
                if (bl.rect==rect)
                {
                    //blocks.RemoveAt(blocksPlaces);
                }
            }
            
        }
        public static Rectangle GetScreenRect(Rectangle rect)
        {
            Rectangle screenRect = rect;
            screenRect.Offset(-ScrollX, -ScrollY);

            return screenRect;
        }
        public void Scroll(int dx, int dy)
        {
            if (ScrollX + dx >= 0 && ScrollX + dx <= levelLength - 400)
                ScrollX += dx;
            if (ScrollY + dy >= 0 && ScrollY + dy <= levelLength - 400)
                ScrollY += dy;
        }
        public void CreateLevel()
        {
            currentLevel++;
            if (currentLevel > 3)
                currentLevel = 1;
            blocks = new List<Block>();
            blocksPlaces = new List<int>();
            level = File.ReadAllLines("content/levels/level" + currentLevel + ".txt");

            levelLength = 40 * level[0].Length;
            int x = 0;
            int y = 0;
            foreach (string str in level)
            {
                foreach (char c in str)
                {
                    Rectangle rect = new Rectangle(x, y, 40, 40);
                    if (c == 'X')
                    {
                        Block block = new Block(rect, blockTexture1);
                        blocks.Add(block);
                    }
                    if (c == 'Y')
                    {
                        Block block = new Block(rect, blockTexture2);
                        blocks.Add(block);
                    }
                    x += 40;
                }
                x = 0;
                y += 40;
            }
        }
        /// <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);

            hudFont = Content.Load<SpriteFont>("Fonts/Hud");

            blockTexture1 = Content.Load<Texture2D>("Textures/rock");
            blockTexture2 = Content.Load<Texture2D>("Textures/bricks");

            jumpTexture = Content.Load<Texture2D>("Textures/j-jump");
            idleTexture = Content.Load<Texture2D>("Textures/j-Idle");
            runTexture = Content.Load<Texture2D>("Textures/j-active");
            digTexture = Content.Load<Texture2D>("Textures/j-digging-2");
            Rectangle rect = new Rectangle(0, Height - idleTexture.Height - 40, 55, 77);
            hero = new AnimatedSprite(rect, idleTexture, runTexture, digTexture, jumpTexture ,this);

            CreateLevel();
            // TODO: use this.Content to load your game content here
        }

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

            timeRemaining -= gameTime.ElapsedGameTime;
            // TODO: Add your update logic here
            KeyboardState keyState = Keyboard.GetState();

            /*if (keyState.IsKeyDown(Keys.Space) && oldState.IsKeyUp(Keys.Space))
                CreateLevel();
            */
            if (keyState.IsKeyDown(Keys.Left))
                hero.StartRun(false,false);
            else if (keyState.IsKeyDown(Keys.Right))
                hero.StartRun(true,false);
            else if (keyState.IsKeyDown(Keys.Down))
                hero.StartRun(true, true);
            else hero.Stop();

            if (keyState.IsKeyDown(Keys.Up) && oldState.IsKeyUp(Keys.Up))
                hero.Dig();
            if (keyState.IsKeyDown(Keys.Space))
                hero.Jump();

            Rectangle heroScreenRect = GetScreenRect(hero.rect);

            if (heroScreenRect.Left < Width / 2)
                Scroll(-3*gameTime.ElapsedGameTime.Milliseconds/10,0);
            if (heroScreenRect.Left > Width / 2)
                Scroll(3 * gameTime.ElapsedGameTime.Milliseconds / 10,0);
            if (heroScreenRect.Bottom > Height / 2)
                Scroll(0, 1 * gameTime.ElapsedGameTime.Milliseconds / 10);
            if (heroScreenRect.Bottom < Height / 2)
                Scroll(0, -1 * gameTime.ElapsedGameTime.Milliseconds / 10);

            oldState = keyState;

            hero.Update(gameTime);
            base.Update(gameTime);
        }

        /// <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);

            // TODO: Add your drawing code here
            spriteBatch.Begin();
            foreach (Block block in blocks)
            {
                block.Draw(spriteBatch);
            }

            DrawHud();
            spriteBatch.End();


            hero.Draw(spriteBatch);

            base.Draw(gameTime);
        }
    }
}