From b92963913e205b5370c112dd5cbf96f91194bc50 Mon Sep 17 00:00:00 2001
From: Charles <Charles@92bb83a3-7c8f-8a45-bc97-515c4e399668>
Date: Fri, 16 Apr 2010 18:42:51 +0000
Subject: [PATCH] New map methods Map.SetCell and Map.ClearCell to modify the
 tiles of the map.  These will be needed by the script class.

git-svn-id: https://bd85.net/svn/cs3505_group@97 92bb83a3-7c8f-8a45-bc97-515c4e399668
---
 CarFire/CarFire/CarFire/Map.cs       | 91 ++++++++++++++++++++++++++--
 CarFire/CarFire/CarFire/MapReader.cs |  5 +-
 2 files changed, 88 insertions(+), 8 deletions(-)

diff --git a/CarFire/CarFire/CarFire/Map.cs b/CarFire/CarFire/CarFire/Map.cs
index f3d59d4..6727133 100644
--- a/CarFire/CarFire/CarFire/Map.cs
+++ b/CarFire/CarFire/CarFire/Map.cs
@@ -128,14 +128,27 @@ namespace CarFire
         public string Tileset { get { return mData.Metadata.Tileset; } }
 
         /// <summary>
-        /// Get a list of the raw entity containers loaded with the map.
+        /// 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
         {
@@ -154,9 +167,10 @@ namespace CarFire
         /// <param name="metadata">The metadata.</param>
         /// <param name="grid">The grid.</param>
         /// <param name="entities">The entities.</param>
-        public Map(Metadata metadata, char[,] grid, List<RawEntity> entities, Point[] playerPositions)
+        public Map(Metadata metadata, char[,] grid, char defaultTile,
+            List<RawEntity> entities, Point[] playerPositions)
         {
-            mData = new Modal(metadata, grid, entities, playerPositions);
+            mData = new Modal(metadata, grid, defaultTile, entities, playerPositions);
             mView = new View(mData);
         }
 
@@ -270,6 +284,48 @@ namespace CarFire
             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>
+        /// <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);
+        }
+
         #endregion
 
 
@@ -279,10 +335,13 @@ namespace CarFire
         {
             Metadata mMetadata;
             char[,] mGrid;
+            char mDefaultTile;
             List<RawEntity> mEntities;
             Point[] mPlayerPositions;
+            bool[,] mBooleanGrid;
 
-            public Modal(Metadata metadata, char[,] grid, List<RawEntity> entities, Point[] playerPositions)
+            public Modal(Metadata metadata, char[,] grid, char defaultTile,
+                List<RawEntity> entities, Point[] playerPositions)
             {
                 Debug.Assert(metadata != null);
                 Debug.Assert(grid != null);
@@ -291,9 +350,19 @@ 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}.",
                     metadata.Name,
@@ -306,6 +375,7 @@ namespace CarFire
             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 bool IsCellOpen(int x, int y)
@@ -314,6 +384,17 @@ namespace CarFire
                 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()
             {
diff --git a/CarFire/CarFire/CarFire/MapReader.cs b/CarFire/CarFire/CarFire/MapReader.cs
index 8eb7e16..ae03ff9 100644
--- a/CarFire/CarFire/CarFire/MapReader.cs
+++ b/CarFire/CarFire/CarFire/MapReader.cs
@@ -96,7 +96,7 @@ namespace CarFire
 
             public Map GetMap()
             {
-                return new Map(mMetadata, mGrid, mEntities, mPlayerPositions);
+                return new Map(mMetadata, mGrid, mDefaultTile, mEntities, mPlayerPositions);
             }
 
 
@@ -425,10 +425,9 @@ namespace CarFire
             char[,] mGrid;
             List<Map.RawEntity> mEntities;
             Point[] mPlayerPositions;
-
-            Dictionary<char, Dictionary<string, string>> mEntitySections = new Dictionary<char, Dictionary<string, string>>();
             char mDefaultTile = ' ';
 
+            Dictionary<char, Dictionary<string, string>> mEntitySections = new Dictionary<char, Dictionary<string, string>>();
             LineReader mInput;
         }
 
-- 
2.45.2