X-Git-Url: https://git.dogcows.com/gitweb?p=chaz%2Fcarfire;a=blobdiff_plain;f=CarFire%2FCarFire%2FCarFire%2FMap.cs;h=504a68ce7f9dca706131c80835b2c67c3b1fcce1;hp=ed8c39fd1957986f0014a404d44c702ed982bfe3;hb=08f41ef45f3c41ca6302150bc6d5270c8e7143db;hpb=c5daf1d9adca0c3a826dfa2ac7b6d4f8a64c84a3

diff --git a/CarFire/CarFire/CarFire/Map.cs b/CarFire/CarFire/CarFire/Map.cs
index ed8c39f..504a68c 100644
--- a/CarFire/CarFire/CarFire/Map.cs
+++ b/CarFire/CarFire/CarFire/Map.cs
@@ -2,11 +2,12 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
-using Microsoft.Xna.Framework;
 using System.IO;
-using System.Text.RegularExpressions;
 using System.Runtime.Serialization;
 using System.Diagnostics;
+using Microsoft.Xna.Framework;
+using Microsoft.Xna.Framework.Graphics;
+using System.Reflection;
 
 namespace CarFire
 {
@@ -18,33 +19,601 @@ namespace CarFire
     /// </summary>
     public class Map
     {
-        #region Types
+        #region Public Constants
 
-        public class Data
-        {
-            public string Author;
-            public string Name;
-            public int MinNumPlayers;
-            public int MaxNumPlayers;
-            public Point Dimensions;
-            public string Tileset;        // TODO: this should be a tilemap object
-            public Type Type;
-            public char[,] Grid;
-        }
-        
-        public enum Type
+        public const float PixelsToUnitSquares = 64.0f;
+
+        #endregion
+
+
+        #region Public Types
+
+        /// <summary>
+        /// The type of a map helps determine how the map is intended to be used.
+        /// </summary>
+        public enum Mode
         {
             None,
             Campaign,
             Battle
         }
 
+        /// <summary>
+        /// The container class for map metadata.
+        /// </summary>
+        public class Metadata
+        {
+            public string Name;
+            public Mode Type;
+            public string Author;
+            public string Next;
+            public HashSet<int> NumPlayers = new HashSet<int>();
+            public string Tileset;
+            public int GridWidth;
+            public int GridHeight;
+        }
+
+        /// <summary>
+        /// The container class for information about an entity defined in the map.
+        /// </summary>
+        public class RawEntity
+        {
+            public char Id;
+            public Point Position;
+            public Dictionary<string, string> Attributes = new Dictionary<string, string>();
+        }
+
+        #endregion
+
+
+        #region Public Properties
+
+        /// <summary>
+        /// Get the name of the map.
+        /// </summary>
+        public string Name { get { return mData.Metadata.Name; } }
+
+        /// <summary>
+        /// Get the type of the map.
+        /// </summary>
+        public Mode Type { get { return mData.Metadata.Type; } }
+
+        /// <summary>
+        /// Get the author of the map.
+        /// </summary>
+        public string Author { get { return mData.Metadata.Author; } }
+
+        /// <summary>
+        /// Get the name of the next map to load after this one.
+        /// </summary>
+        public string Next { get { return mData.Metadata.Next; } }
+
+        /// <summary>
+        /// Get a set of integers containing each allowable number of players.
+        /// </summary>
+        public HashSet<int> NumPlayers { get { return mData.Metadata.NumPlayers; } }
+
+        /// <summary>
+        /// Get the width of the map, in grid units.
+        /// </summary>
+        public int Width { get { return mData.Metadata.GridWidth; } }
+
+        /// <summary>
+        /// Get the height of the map, in grid units.
+        /// </summary>
+        public int Height { get { return mData.Metadata.GridHeight; } }
+
+        /// <summary>
+        /// Get the name of the tileset.
+        /// </summary>
+        public string Tileset { get { return mData.Metadata.Tileset; } }
+
+        /// <summary>
+        /// Get the current grid of open cells.  On the grid, true means
+        /// the cell is open (i.e. an entity can occupy that cell), and false
+        /// means the cell is closed.  Note that, just like Map.IsCellOpen,
+        /// only static scenery is considered; the grid cannot tell you
+        /// whether or not an entity is already occupying the cell.
+        /// </summary>
+        public bool[,] Grid { get { return mData.Grid; } }
+
+        /// <summary>
+        /// Get a list of the raw entity containers loaded with the map.  If you
+        /// want to get the actual entity objects, use Map.GetEntities and
+        /// Map.GetAllEntities instead.
+        /// </summary>
+        public List<RawEntity> RawEntities { get { return mData.Entities; } }
+
+
+        /// <summary>
+        /// Get and set the coordinate of the grid cell that should be in
+        /// the center of the screen when the map is drawn.  Setting this
+        /// will change the viewport of the map and will effect the return
+        /// values of Map.GetPointFromCoordinates and Map.GetRectangleFromCoordinates.
+        /// </summary>
+        public Vector2 CenterCell
+        {
+            get { return mView.CenterCell; }
+            set { mView.CenterCell = value; }
+        }
+
+        /// <summary>
+        /// Get and set the tilemap with its associated texture and tile
+        /// character to coordinate mappings.  This effects what the map looks
+        /// like when it is drawn.  You will need to reset any map instances
+        /// after setting a new tilemap.  You should also set a tilemap before
+        /// instantiating any maps.
+        /// </summary>
+        public static Tilemap Tilemap;
+
+        /// <summary>
+        /// Get and set the zoom of the map view.  The default zoom is
+        /// Map.PixelsToUnitSquares.
+        /// </summary>
+        public float Zoom
+        {
+            get { return mView.Zoom; }
+            set { mView.Zoom = value; }
+        }
+
+        #endregion
+
+
+        #region Public Methods
+
+        /// <summary>
+        /// Construct a map with the provided map data.
+        /// </summary>
+        /// <param name="metadata">The metadata.</param>
+        /// <param name="grid">The grid.</param>
+        /// <param name="entities">The entities.</param>
+        public Map(Metadata metadata, char[,] grid, char defaultTile,
+            List<RawEntity> entities, Point[] playerPositions)
+        {
+            mData = new Model(metadata, grid, defaultTile, entities, playerPositions);
+            mView = new View(mData);
+        }
+
+
+        /// <summary>
+        /// Draw a representation of the map to the screen.
+        /// </summary>
+        /// <param name="spriteBatch">The jeewiz.</param>
+        public void Draw(SpriteBatch spriteBatch)
+        {
+            mView.Draw(spriteBatch);
+        }
+
+
+        /// <summary>
+        /// Get a point in screen-space from a coordinate in gridspace.
+        /// </summary>
+        /// <param name="x">X-coordinate.</param>
+        /// <param name="y">Y-coordinate.</param>
+        /// <returns>Transformed point.</returns>
+        public Point GetPointFromCoordinates(float x, float y)
+        {
+            return mView.GetPointFromCoordinates(x, y);
+        }
+
+        /// <summary>
+        /// Get a point in screen-space from a coordinate in gridspace.
+        /// </summary>
+        /// <param name="point">X,Y-coordinates.</param>
+        /// <returns>Transformed point.</returns>
+        public Point GetPointFromCoordinates(Vector2 point)
+        {
+            return mView.GetPointFromCoordinates(point.X, point.Y);
+        }
+
+        /// <summary>
+        /// Get a rectangle in screen-space centered around a coordinate in gridspace.
+        /// </summary>
+        /// <param name="x">X-coordinate.</param>
+        /// <param name="y">Y-coordinate.</param>
+        /// <returns>Transformed rectangle.</returns>
+        public Rectangle GetRectangleFromCoordinates(float x, float y)
+        {
+            return mView.GetRectangleFromCoordinates(x, y);
+        }
+
+        /// <summary>
+        /// Get a rectangle in screen-space centered around a coordinate in gridspace.
+        /// </summary>
+        /// <param name="point">X,Y-coordinates.</param>
+        /// <returns>Transformed rectangle.</returns>
+        public Rectangle GetRectangleFromCoordinates(Vector2 point)
+        {
+            return mView.GetRectangleFromCoordinates(point.X, point.Y);
+        }
+
+
+        /// <summary>
+        /// Determine whether or not a cell can be occupied by a game entity.
+        /// </summary>
+        /// <param name="x">X-coordinate.</param>
+        /// <param name="y">Y-coordinate.</param>
+        /// <returns>True if cell can be occupied, false otherwise.</returns>
+        public bool IsCellOpen(int x, int y)
+        {
+            return mData.IsCellOpen(x, y);
+        }
+
+        /// <summary>
+        /// created by Brady for AI precalculations
+        /// </summary>
+        /// <param name="x">X-coordinate.</param>
+        /// <param name="y">Y-coordinate.</param>
+        public bool IsWall(int x, int y)
+        {
+            return mData.IsWall(x, y);
+        }
+
+        /// <summary>
+        /// Determine whether or not a cell can be occupied by a game entity.
+        /// </summary>
+        /// <param name="point">X,Y-coordinates.</param>
+        /// <returns>True if cell can be occupied, false otherwise.</returns>
+        public bool IsCellOpen(Point point)
+        {
+            return mData.IsCellOpen(point.X, point.Y);
+        }
+
+
+        /// <summary>
+        /// Get the starting position of a player.
+        /// </summary>
+        /// <param name="playerNumber">The number of the player (i.e. 1-4).
+        /// This number must be a valid player number.</param>
+        /// <returns>The starting position of the player.</returns>
+        public Point GetStartingPositionForPlayer(int playerNumber)
+        {
+            Debug.Assert(1 <= playerNumber && playerNumber <= NumPlayers.Max());
+            return mData.PlayerPositions[playerNumber];
+        }
+
+
+        /// <summary>
+        /// Get all the entities loaded from the map file.  Exceptions could be
+        /// thrown if there are entities without associated classes.
+        /// </summary>
+        /// <param name="game">The game reference to be passed to entities.</param>
+        /// <returns>List of entity objects loaded.</returns>
+        public List<IEntity> GetAllEntities(Game game)
+        {
+            return mData.GetAllEntities(game);
+        }
+
+        /// <summary>
+        /// Get the entities of a certain type loaded from the map file.  Exceptions
+        /// could be thrown if there are entities without associated classes.
+        /// </summary>
+        /// <param name="game">The game reference to be passed to entities.</param>
+        /// <typeparam name="T">Type of the entity you want a list of.</typeparam>
+        /// <returns>List of entity objects loaded.</returns>
+        public List<T> GetEntities<T>(Game game)
+        {
+            return mData.GetEntities<T>(game);
+        }
+
+
+        /// <summary>
+        /// Set the tile of a cell.
+        /// </summary>
+        /// <param name="x">X-coordinate.</param>
+        /// <param name="y">Y-coordinate.</param>
+        /// <param name="tile">The character representing the tile.</param>
+        public void SetCell(int x, int y, char tile)
+        {
+            mData.SetCell(x, y, tile);
+        }
+
+        /// <summary>
+        /// Set the tile of a cell.
+        /// </summary>
+        /// <param name="point">X,Y-coordinates.</param>
+        /// <param name="tile">The character representing the tile.</param>
+        public void SetCell(Point point, char tile)
+        {
+            mData.SetCell(point.X, point.Y, tile);
+        }
+
+
+        /// <summary>
+        /// Clear a cell to the default tile.
+        /// </summary>
+        /// <param name="x">X-coordinate.</param>
+        /// <param name="y">Y-coordinate.</param>
+        public void ClearCell(int x, int y)
+        {
+            mData.ClearCell(x, y);
+        }
+
+        /// <summary>
+        /// Clear a cell to the default tile.
+        /// </summary>
+        /// <param name="point">X,Y-coordinates.</param>
+        public void ClearCell(Point point)
+        {
+            mData.ClearCell(point.X, point.Y);
+        }
+
+
+        /// <summary>
+        /// Reset the map to the state it was at right after loading.
+        /// </summary>
+        public void Reset()
+        {
+            mData.Reset();
+            mView.Reset();
+        }
+
         #endregion
 
 
-        public Map(Data data)
+        #region Private Types
+
+        class Model
         {
-            Console.WriteLine("Read map " + data.Name + " of type " + data.Type + " written by " + data.Author);
+            public Metadata Metadata { get { return mMetadata; } }
+            public List<RawEntity> Entities { get { return mEntities; } }
+            public Point[] PlayerPositions { get { return mPlayerPositions; } }
+            public bool[,] Grid { get { return mBooleanGrid; } }
+
+
+            public Model(Metadata metadata, char[,] grid, char defaultTile,
+                List<RawEntity> entities, Point[] playerPositions)
+            {
+                Debug.Assert(metadata != null);
+                Debug.Assert(grid != null);
+                Debug.Assert(entities != null);
+                Debug.Assert(metadata.GridWidth * metadata.GridHeight == grid.Length);
+                Debug.Assert(Tilemap != null);
+
+                mMetadata = metadata;
+                mCleanGrid = grid;
+                mDefaultTile = defaultTile;
+                mEntities = entities;
+                mPlayerPositions = playerPositions;
+
+                Reset();
+
+#if DEBUG
+                Console.WriteLine("Loaded map {0} of type {1} written by {2}.",
+                    metadata.Name,
+                    metadata.Type,
+                    metadata.Author);
+#endif
+            }
+
+
+            public void Reset()
+            {
+                mGrid = (char[,])mCleanGrid.Clone();
+
+                mBooleanGrid = new bool[mMetadata.GridWidth, mMetadata.GridHeight];
+                for (int x = 0; x < mMetadata.GridWidth; x++)
+                {
+                    for (int y = 0; y < mMetadata.GridHeight; y++)
+                    {
+                        mBooleanGrid[x, y] = IsCellOpen(x, y);
+                    }
+                }
+            }
+
+
+            public bool IsCellOpen(int x, int y)
+            {
+                if (!IsOnMap(x, y)) return false;
+                return (Tilemap.GetTileFlags(mGrid[x, y]) & TileFlags.Open) == TileFlags.Open;
+            }
+
+            //created by Brady for AI precalculations
+            public bool IsWall(int x, int y)
+            {
+                if (!IsOnMap(x, y)) return false;
+                return (Tilemap.GetTileFlags(mGrid[x, y]) & TileFlags.Wall) == TileFlags.Wall;
+            }
+
+            public void SetCell(int x, int y, char tile)
+            {
+                if (IsOnMap(x, y))
+                {
+                    mGrid[x, y] = tile;
+                    mBooleanGrid[x, y] = IsCellOpen(x, y);
+                }
+            }
+
+            public char GetCell(int x, int y)
+            {
+                if (IsOnMap(x, y)) return mGrid[x, y];
+                return mDefaultTile;
+            }
+
+            public void ClearCell(int x, int y)
+            {
+                SetCell(x, y, mDefaultTile);
+            }
+
+            public bool IsOnMap(int x, int y)
+            {
+                return 0 <= x && x < Metadata.GridWidth && 0 <= y && y < Metadata.GridHeight;
+            }
+
+
+            public List<IEntity> GetAllEntities(Game game)
+            {
+                List<IEntity> list = new List<IEntity>();
+
+                foreach (RawEntity raw in mEntities)
+                {
+                    if (raw.Attributes.ContainsKey("type"))
+                    {
+                        string typename = raw.Attributes["type"];
+
+                        object[] args = new object[4];
+                        args[0] = raw.Id;
+                        args[1] = raw.Position;
+                        args[2] = raw.Attributes;
+                        args[3] = game;
+
+                        try
+                        {
+                            IEntity entity = (IEntity)Activator.CreateInstance(System.Type.GetType("CarFire." + typename), args);
+                            if (entity != null)
+                            {
+                                entity.LoadContent(game.ContentManager);
+                                list.Add(entity);
+                            }
+                            else throw new Exception();
+                        }
+#pragma warning disable 0168
+                        catch (System.Exception ex)
+#pragma warning restore 0168
+                        {
+                            throw new Exception("Entity of type " + typename + " not loaded because an entity class can't be found.");
+                        }
+                    }
+                    else
+                    {
+                        Console.WriteLine("Ignoring entity with identifier " + raw.Id + " since it has no type key.");
+                    }
+                }
+
+                return list;
+            }
+
+            public List<T> GetEntities<T>(Game game)
+            {
+                System.Type type = typeof(T);
+                List<T> list = new List<T>();
+
+                string typename = typeof(T).Name;
+                foreach (RawEntity raw in mEntities)
+                {
+                    if (raw.Attributes.ContainsKey("type") && typename == raw.Attributes["type"])
+                    {
+                        object[] args = new object[4];
+                        args[0] = raw.Id;
+                        args[1] = raw.Position;
+                        args[2] = raw.Attributes;
+                        args[3] = game;
+
+                        T entity = (T)Activator.CreateInstance(type, args);
+                        if (entity != null)
+                        {
+                            ((IEntity)entity).LoadContent(game.ContentManager);
+                            list.Add(entity);
+                        }
+                        else throw new Exception("Entity of type " + typename + " not loaded because an entity class can't be found.");
+                    }
+                }
+
+                return list;
+            }
+
+
+            Metadata mMetadata;
+            char[,] mGrid;
+            char[,] mCleanGrid;
+            bool[,] mBooleanGrid;
+            char mDefaultTile;
+            List<RawEntity> mEntities;
+            Point[] mPlayerPositions;
+        }
+
+        class View
+        {
+            public Vector2 CenterCell;
+            public float Zoom;
+
+
+            public View(Model data)
+            {
+                Debug.Assert(data != null);
+                mData = data;
+
+                Reset();
+            }
+
+
+            public void Reset()
+            {
+                CenterCell = Vector2.Zero;
+                Zoom = PixelsToUnitSquares;
+            }
+
+
+            public void Draw(SpriteBatch spriteBatch)
+            {
+                if (Tilemap == null) throw new Exception("Cannot draw map without first setting the tilemap.");
+                mViewport = spriteBatch.GraphicsDevice.Viewport;
+
+                for (int y = 0; y < mData.Metadata.GridHeight; y++)
+                {
+                    for (int x = 0; x < mData.Metadata.GridWidth; x++)
+                    {
+                        Tilemap.Draw(spriteBatch, mData.GetCell(x, y), GetRectangleFromCoordinates(x, y));
+                    }
+                }
+            }
+
+
+            public Point GetPointFromCoordinates(float x, float y)
+            {
+                Matrix transform = GetTransformation(CenterCell);
+                Vector2 point = Vector2.Transform(new Vector2(x, y), transform);
+
+                return new Point((int)point.X, (int)point.Y);
+            }
+
+            public Rectangle GetRectangleFromCoordinates(float x, float y)
+            {
+                Matrix transform = GetTransformation(CenterCell);
+                Vector2 point = Vector2.Transform(new Vector2(x, y), transform);
+                
+                return new Rectangle((int)Math.Round(point.X, 0), (int)Math.Round(point.Y, 0), (int)Math.Round(Zoom, 0), (int)Math.Round(Zoom, 0));
+            }
+
+
+
+            Matrix GetTransformation(Vector2 center)
+            {
+                float halfRatio = Zoom * 0.5f;
+                Matrix transform = Matrix.CreateTranslation(-center.X, -center.Y, 0.0f);
+                transform *= Matrix.CreateScale(Zoom);
+                transform *= Matrix.CreateTranslation(mViewport.Width * 0.5f - halfRatio,
+                    mViewport.Height * 0.5f - halfRatio, 0.0f);
+
+                Vector2 topLeft = Vector2.Transform(new Vector2(0.0f, 0.0f), transform);
+                topLeft.X = Math.Max(mViewport.X, topLeft.X);
+                topLeft.Y = Math.Max(mViewport.Y, topLeft.Y);
+                transform *= Matrix.CreateTranslation(-topLeft.X, -topLeft.Y, 0.0f);
+
+                Vector2 bottomRight = Vector2.Transform(new Vector2((float)mData.Metadata.GridWidth,
+                    (float)mData.Metadata.GridHeight), transform);
+                float right = mViewport.X + mViewport.Width;
+                float bottom = mViewport.Y + mViewport.Height;
+                bottomRight.X = Math.Min(right, bottomRight.X) - right;
+                bottomRight.Y = Math.Min(bottom, bottomRight.Y) - bottom;
+                transform *= Matrix.CreateTranslation(-bottomRight.X, -bottomRight.Y, 0.0f);
+
+                return transform;
+            }
+
+
+            Model mData;
+            Viewport mViewport;
         }
+
+        #endregion
+
+
+        #region Private Variables
+
+        Model mData;
+        View mView;
+
+        #endregion
     }
 }