X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;ds=sidebyside;f=CarFire%2FCarFire%2FCarFire%2FMap.cs;h=8c744bad3e8a96962288d966ea47c991911d099a;hb=f31fe51445e412355ef197ea87da3b07f7fc1c70;hp=b61f2bbcb1eef2f8e0e556efdcff645b3daf5d63;hpb=1393586d1e5639ac8f1e9fc8183644050dd54165;p=chaz%2Fcarfire
diff --git a/CarFire/CarFire/CarFire/Map.cs b/CarFire/CarFire/CarFire/Map.cs
index b61f2bb..8c744ba 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
{
@@ -21,6 +22,30 @@ namespace CarFire
// DEBUG: Tilesets not implemented at all.
public static Texture2D DefaultTile;
+ #region Public Exceptions
+
+ ///
+ /// 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.
+ ///
+ 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;
@@ -33,7 +58,7 @@ namespace CarFire
///
/// The type of a map helps determine how the map is intended to be used.
///
- 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 NumPlayers = new HashSet();
public string Tileset;
@@ -54,10 +79,20 @@ namespace CarFire
public int GridHeight;
}
+ ///
+ /// The container class for information about an entity defined in the map.
+ ///
+ public class RawEntity
+ {
+ public char Id;
+ public Point Position;
+ public Dictionary Attributes = new Dictionary();
+ }
+
#endregion
- #region Public Attributes
+ #region Public Properties
///
/// Get the name of the map.
@@ -67,7 +102,7 @@ namespace CarFire
///
/// Get the type of the map.
///
- //public Type Type { get { return mData.mMetadata.Type; } }
+ public Mode Type { get { return mData.Metadata.Type; } }
///
/// Get the author of the map.
@@ -92,13 +127,55 @@ namespace CarFire
// TODO: This should return whatever object we end up using for tilesets.
public string Tileset { get { return mData.Metadata.Tileset; } }
+ ///
+ /// 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.
+ ///
+ public bool[,] Grid { get { return mData.Grid; } }
+
+ ///
+ /// 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.
+ ///
+ public List RawEntities { get { return mData.Entities; } }
+
+ ///
+ /// 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.
+ ///
public Vector2 CenterCell
{
get { return mView.CenterCell; }
set { mView.CenterCell = value; }
}
+ ///
+ /// Get and set the zoom of the map view. The default zoom is
+ /// Map.PixelsToUnitSquares.
+ ///
+ public float Zoom
+ {
+ get { return mView.Zoom; }
+ set { mView.Zoom = value; }
+ }
+
+
+ ///
+ /// Get and set the associated game object.
+ ///
+ public Game Game
+ {
+ get { return mData.Game; }
+ set { mData.Game = value; }
+ }
+
#endregion
@@ -107,10 +184,13 @@ namespace CarFire
///
/// Construct a map with the provided map data.
///
- /// Map data.
- public Map(Metadata metadata, char[,] grid, Dictionary> entities)
+ /// The metadata.
+ /// The grid.
+ /// The entities.
+ public Map(Metadata metadata, char[,] grid, char defaultTile,
+ List entities, Point[] playerPositions)
{
- mData = new Modal(metadata, grid, entities);
+ mData = new Model(metadata, grid, defaultTile, entities, playerPositions);
mView = new View(mData);
}
@@ -182,7 +262,7 @@ namespace CarFire
///
/// Determine whether or not a cell can be occupied by a game entity.
///
- /// X,Y-coordinates.
+ /// X,Y-coordinates.
/// True if cell can be occupied, false otherwise.
public bool IsCellOpen(Point point)
{
@@ -191,14 +271,89 @@ namespace CarFire
///
- /// Get the entities loaded from the map file.
+ /// Get the starting position of a player.
///
- /// Dictionary of entities. The keys are the entity
- /// identifiers and the value is a dictionary of key-value pairs
- /// associated with that entity.
- public Dictionary> GetEntities()
+ /// The number of the player (i.e. 1-4).
+ /// This number must be a valid player number.
+ /// The starting position of the player.
+ public Point GetStartingPositionForPlayer(int playerNumber)
{
- return mData.Entities;
+ Debug.Assert(1 <= playerNumber && playerNumber <= NumPlayers.Max());
+ return mData.PlayerPositions[playerNumber];
+ }
+
+
+ ///
+ /// Get all the entities loaded from the map file. Exceptions could be
+ /// thrown if there are entities without associated classes.
+ ///
+ /// List of entity objects loaded.
+ public List GetAllEntities()
+ {
+ return mData.GetAllEntities();
+ }
+
+ ///
+ /// Get the entities of a certain type loaded from the map file. Exceptions
+ /// could be thrown if there are entities without associated classes.
+ ///
+ /// Type of the entity you want a list of.
+ /// List of entity objects loaded.
+ public List GetEntities()
+ {
+ return mData.GetEntities();
+ }
+
+
+ ///
+ /// Set the tile of a cell.
+ ///
+ /// X-coordinate.
+ /// Y-coordinate.
+ /// The character representing the tile.
+ public void SetCell(int x, int y, char tile)
+ {
+ mData.SetCell(x, y, tile);
+ }
+
+ ///
+ /// Set the tile of a cell.
+ ///
+ /// X,Y-coordinates.
+ /// The character representing the tile.
+ public void SetCell(Point point, char tile)
+ {
+ mData.SetCell(point.X, point.Y, tile);
+ }
+
+
+ ///
+ /// Clear a cell to the default tile.
+ ///
+ /// X-coordinate.
+ /// Y-coordinate.
+ public void ClearCell(int x, int y)
+ {
+ mData.ClearCell(x, y);
+ }
+
+ ///
+ /// Clear a cell to the default tile.
+ ///
+ /// X,Y-coordinates.
+ public void ClearCell(Point point)
+ {
+ mData.ClearCell(point.X, point.Y);
+ }
+
+
+ ///
+ /// Reset the map to the state it was at right after loading.
+ ///
+ public void Reset()
+ {
+ mData.Reset();
+ mView.Reset();
}
#endregion
@@ -206,13 +361,18 @@ namespace CarFire
#region Private Types
- class Modal
+ class Model
{
- Metadata mMetadata;
- char[,] mGrid;
- Dictionary> mEntities;
+ public Metadata Metadata { get { return mMetadata; } }
+ public List Entities { get { return mEntities; } }
+ public Point[] PlayerPositions { get { return mPlayerPositions; } }
+ public bool[,] Grid { get { return mBooleanGrid; } }
+
+ public Game Game;
- public Modal(Metadata metadata, char[,] grid, Dictionary> entities)
+
+ public Model(Metadata metadata, char[,] grid, char defaultTile,
+ List entities, Point[] playerPositions)
{
Debug.Assert(metadata != null);
Debug.Assert(grid != null);
@@ -220,8 +380,12 @@ namespace CarFire
Debug.Assert(metadata.GridWidth * metadata.GridHeight == grid.Length);
mMetadata = metadata;
- mGrid = grid;
+ mCleanGrid = grid;
+ mDefaultTile = defaultTile;
mEntities = entities;
+ mPlayerPositions = playerPositions;
+
+ Reset();
#if DEBUG
Console.WriteLine("Loaded map {0} of type {1} written by {2}.",
@@ -232,31 +396,151 @@ namespace CarFire
}
- public Metadata Metadata { get { return mMetadata; } }
- public Dictionary> Entities { get { return mEntities; } }
+ 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)
{
// TODO: Still need to define characters for types of scenery.
- return mGrid[x, y] == ' ';
+ if (IsOnMap(x, y)) return mGrid[x, y] == ' ';
+ return false;
+ }
+
+ public void SetCell(int x, int y, char tile)
+ {
+ if (IsOnMap(x, y))
+ {
+ mGrid[x, y] = tile;
+ mBooleanGrid[x, y] = IsCellOpen(x, y);
+ }
+ }
+
+ 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 GetAllEntities()
+ {
+ List list = new List();
+
+ 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 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 GetEntities()
+ {
+ System.Type type = typeof(T);
+ List list = new List();
+
+ 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 RuntimeException("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 mEntities;
+ Point[] mPlayerPositions;
}
class View
{
- Modal mData;
-
public Vector2 CenterCell;
- Viewport mViewport;
+ public float Zoom;
- public View(Modal data)
+ public View(Model data)
{
Debug.Assert(data != null);
mData = data;
+
+ Reset();
+ }
+
+
+ public void Reset()
+ {
+ CenterCell = Vector2.Zero;
+ Zoom = PixelsToUnitSquares;
}
+
public void Draw(SpriteBatch spriteBatch)
{
mViewport = spriteBatch.GraphicsDevice.Viewport;
@@ -278,18 +562,30 @@ namespace CarFire
}
}
- ///
- /// Get a matrix to transform a point from grid-space to screen coordinates. This
- /// method uses the viewport to bound the edges of the map such that the camera
- /// will not show anything outside of the grid.
- ///
- /// The point to put in the center.
- /// The transformation matrix.
+
+ 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 = PixelsToUnitSquares * 0.5f;
+ float halfRatio = Zoom * 0.5f;
Matrix transform = Matrix.CreateTranslation(-center.X, -center.Y, 0.0f);
- transform *= Matrix.CreateScale(PixelsToUnitSquares);
+ transform *= Matrix.CreateScale(Zoom);
transform *= Matrix.CreateTranslation(mViewport.Width * 0.5f - halfRatio,
mViewport.Height * 0.5f - halfRatio, 0.0f);
@@ -310,21 +606,8 @@ namespace CarFire
}
- 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)point.X, (int)point.Y, (int)PixelsToUnitSquares, (int)PixelsToUnitSquares);
- }
+ Model mData;
+ Viewport mViewport;
}
#endregion
@@ -332,7 +615,7 @@ namespace CarFire
#region Private Variables
- Modal mData;
+ Model mData;
View mView;
#endregion