X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=CarFire%2FCarFire%2FCarFire%2FMap.cs;h=6727133bc79c1ee72471e67d8f30c0fd2fa7349e;hb=b92963913e205b5370c112dd5cbf96f91194bc50;hp=95a8c2c9b75253b17cc4debd169d312ca3cf43f5;hpb=c8f76edcbc66e1466db1cfef4bc314a7261670e8;p=chaz%2Fcarfire

diff --git a/CarFire/CarFire/CarFire/Map.cs b/CarFire/CarFire/CarFire/Map.cs
index 95a8c2c..6727133 100644
--- a/CarFire/CarFire/CarFire/Map.cs
+++ b/CarFire/CarFire/CarFire/Map.cs
@@ -7,6 +7,7 @@ using System.Runtime.Serialization;
 using System.Diagnostics;
 using Microsoft.Xna.Framework;
 using Microsoft.Xna.Framework.Graphics;
+using System.Reflection;
 
 namespace CarFire
 {
@@ -21,9 +22,33 @@ namespace CarFire
         // DEBUG: Tilesets not implemented at all.
         public static Texture2D DefaultTile;
 
+        #region Public Exceptions
+
+        /// <summary>
+        /// This exception is thrown during the loading of a map if any
+        /// part of the map file is inconsistent with the expected format
+        /// and order.
+        /// </summary>
+        public class RuntimeException : System.ApplicationException
+        {
+            public RuntimeException() { }
+
+            public RuntimeException(string message) :
+                base(message) { }
+
+            public RuntimeException(string message, System.Exception inner) :
+                base(message, inner) { }
+
+            protected RuntimeException(SerializationInfo info, StreamingContext context) :
+                base(info, context) { }
+        }
+
+        #endregion
+
+
         #region Public Constants
 
-        public const float PixelsToUnitSquares = 64.0f;
+        public const float PixelsToUnitSquares = 60.0f;
 
         #endregion
 
@@ -33,7 +58,7 @@ namespace CarFire
         /// <summary>
         /// The type of a map helps determine how the map is intended to be used.
         /// </summary>
-        public enum Type
+        public enum Mode
         {
             None,
             Campaign,
@@ -46,7 +71,7 @@ namespace CarFire
         public class Metadata
         {
             public string Name;
-            public Type Type;
+            public Mode Type;
             public string Author;
             public HashSet<int> NumPlayers = new HashSet<int>();
             public string Tileset;
@@ -54,6 +79,16 @@ namespace CarFire
             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
 
 
@@ -67,7 +102,7 @@ namespace CarFire
         /// <summary>
         /// Get the type of the map.
         /// </summary>
-        //public Type Type { get { return mData.mMetadata.Type; } }
+        public Mode Type { get { return mData.Metadata.Type; } }
 
         /// <summary>
         /// Get the author of the map.
@@ -92,10 +127,28 @@ namespace CarFire
         // TODO: This should return whatever object we end up using for tilesets.
         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.
+        /// 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
         {
@@ -111,10 +164,13 @@ namespace CarFire
         /// <summary>
         /// Construct a map with the provided map data.
         /// </summary>
-        /// <param name="data">Map data.</param>
-        public Map(Metadata metadata, char[,] grid, Dictionary<char, Dictionary<string, string>> entities)
+        /// <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 Modal(metadata, grid, entities);
+            mData = new Modal(metadata, grid, defaultTile, entities, playerPositions);
             mView = new View(mData);
         }
 
@@ -186,7 +242,7 @@ namespace CarFire
         /// <summary>
         /// Determine whether or not a cell can be occupied by a game entity.
         /// </summary>
-        /// <param name="x">X,Y-coordinates.</param>
+        /// <param name="point">X,Y-coordinates.</param>
         /// <returns>True if cell can be occupied, false otherwise.</returns>
         public bool IsCellOpen(Point point)
         {
@@ -195,14 +251,79 @@ namespace CarFire
 
 
         /// <summary>
-        /// Get the entities loaded from the map file.
+        /// 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>
+        /// <returns>List of entity objects loaded.</returns>
+        public List<object> GetAllEntities()
+        {
+            return mData.GetAllEntities();
+        }
+
+        /// <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>
+        /// <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>()
+        {
+            return mData.GetEntities<T>();
+        }
+
+
+        /// <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>
-        /// <returns>Dictionary of entities.  The keys are the entity
-        /// identifiers and the value is a dictionary of key-value pairs
-        /// associated with that entity.</returns>
-        public Dictionary<char, Dictionary<string, string>> GetEntities()
+        /// <param name="x">X-coordinate.</param>
+        /// <param name="y">Y-coordinate.</param>
+        public void ClearCell(int x, int y)
         {
-            return mData.Entities;
+            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);
         }
 
         #endregion
@@ -214,9 +335,13 @@ namespace CarFire
         {
             Metadata mMetadata;
             char[,] mGrid;
-            Dictionary<char, Dictionary<string, string>> mEntities;
+            char mDefaultTile;
+            List<RawEntity> mEntities;
+            Point[] mPlayerPositions;
+            bool[,] mBooleanGrid;
 
-            public Modal(Metadata metadata, char[,] grid, Dictionary<char, Dictionary<string, string>> entities)
+            public Modal(Metadata metadata, char[,] grid, char defaultTile,
+                List<RawEntity> entities, Point[] playerPositions)
             {
                 Debug.Assert(metadata != null);
                 Debug.Assert(grid != null);
@@ -225,7 +350,18 @@ namespace CarFire
 
                 mMetadata = metadata;
                 mGrid = grid;
+                mDefaultTile = defaultTile;
                 mEntities = entities;
+                mPlayerPositions = playerPositions;
+
+                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);
+                    }
+                }
 
 #if DEBUG
                 Console.WriteLine("Loaded map {0} of type {1} written by {2}.",
@@ -237,7 +373,9 @@ namespace CarFire
 
 
             public Metadata Metadata { get { return mMetadata; } }
-            public Dictionary<char, Dictionary<string, string>> Entities { get { return mEntities; } }
+            public List<RawEntity> Entities { get { return mEntities; } }
+            public Point[] PlayerPositions { get { return mPlayerPositions; } }
+            public bool[,] Grid { get { return mBooleanGrid; } }
 
 
             public bool IsCellOpen(int x, int y)
@@ -245,6 +383,80 @@ namespace CarFire
                 // TODO: Still need to define characters for types of scenery.
                 return mGrid[x, y] == ' ';
             }
+
+            public void SetCell(int x, int y, char tile)
+            {
+                mGrid[x, y] = tile;
+                mBooleanGrid[x, y] = IsCellOpen(x, y);
+            }
+
+            public void ClearCell(int x, int y)
+            {
+                SetCell(x, y, mDefaultTile);
+            }
+
+
+            public List<object> GetAllEntities()
+            {
+                List<object> list = new List<object>();
+
+                foreach (RawEntity raw in mEntities)
+                {
+                    if (raw.Attributes.ContainsKey("type"))
+                    {
+                        string typename = raw.Attributes["type"];
+
+                        object[] args = new object[3];
+                        args[0] = raw.Id;
+                        args[1] = raw.Position;
+                        args[2] = raw.Attributes;
+
+                        try
+                        {
+
+                            object entity = Activator.CreateInstance(System.Type.GetType("CarFire." + typename), args);
+                            if (entity != null) list.Add(entity);
+                            else throw new RuntimeException();
+                        }
+#pragma warning disable 0168
+                        catch (System.Exception ex)
+#pragma warning restore 0168
+                        {
+                            throw new RuntimeException("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>()
+            {
+                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[3];
+                        args[0] = raw.Id;
+                        args[1] = raw.Position;
+                        args[2] = raw.Attributes;
+
+                        T entity = (T)Activator.CreateInstance(type, args);
+                        if (entity != null) list.Add(entity);
+                        else throw new RuntimeException("Entity of type " + typename + " not loaded because an entity class can't be found.");
+                    }
+                }
+
+                return list;
+            }
         }
 
         class View