use auto property

.gitattributes

@@ -0,0 +1,62 @@
+###############################################################################
+# Set default behavior to automatically normalize line endings.
+###############################################################################
+*	text=auto
+*.cs	text eol=lf
+*.py	text eol=lf
+*.sh	text eol=lf
+###############################################################################
+# Set default behavior for command prompt diff.
+#
+# This is need for earlier builds of msysgit that does not have it on by
+# default for csharp files.
+# Note: This is only used by command line
+###############################################################################
+#*.cs     diff=csharp
+###############################################################################
+# Set the merge driver for project and solution files
+#
+# Merging from the command prompt will add diff markers to the files if there
+# are conflicts (Merging from VS is not affected by the settings below, in VS
+# the diff markers are never inserted). Diff markers may cause the following 
+# file extensions to fail to load in VS. An alternative would be to treat
+# these files as binary and thus will always conflict and require user
+# intervention with every merge. To do so, just uncomment the entries below
+###############################################################################
+#*.sln       merge=binary
+#*.csproj    merge=binary
+#*.vbproj    merge=binary
+#*.vcxproj   merge=binary
+#*.vcproj    merge=binary
+#*.dbproj    merge=binary
+#*.fsproj    merge=binary
+#*.lsproj    merge=binary
+#*.wixproj   merge=binary
+#*.modelproj merge=binary
+#*.sqlproj   merge=binary
+#*.wwaproj   merge=binary
+###############################################################################
+# behavior for image files
+#
+# image files are treated as binary by default.
+###############################################################################
+*.jpg   binary
+*.png   binary
+*.gif   binary
+###############################################################################
+# diff behavior for common document formats
+# 
+# Convert binary document formats to text before diffing them. This feature
+# is only available from the command line. Turn it on by uncommenting the 
+# entries below.
+###############################################################################
+#*.doc   diff=astextplain
+#*.DOC   diff=astextplain
+#*.docx  diff=astextplain
+#*.DOCX  diff=astextplain
+#*.dot   diff=astextplain
+#*.DOT   diff=astextplain
+#*.pdf   diff=astextplain
+#*.PDF   diff=astextplain
+#*.rtf   diff=astextplain
+#*.RTF   diff=astextplain

Shared/NPC.cs

@@ -1,7 +1,5 @@
 using Microsoft.Xna.Framework;
 using Microsoft.Xna.Framework.Graphics;
-using System;
-using System.Collections.Generic;
 
 namespace SemiColinGames {
   class NPC {

Shared/Scene.cs

@@ -56,8 +56,7 @@ namespace SemiColinGames {
       GC.SuppressFinalize(this);
     }
 
-    public void Draw(
-        bool isRunningSlowly, World world, Player player, LinesOfSight linesOfSight, bool paused) {
+    public void Draw(bool isRunningSlowly, World world, LinesOfSight linesOfSight, bool paused) {
       graphics.SetRenderTarget(null);
       graphics.Clear(backgroundColor);
 
@@ -100,7 +99,7 @@ namespace SemiColinGames {
       world.DrawBackground(spriteBatch);
 
       // Draw player.
-      player.Draw(spriteBatch);
+      world.Player.Draw(spriteBatch);
 
       // Draw foreground tiles.
       world.DrawForeground(spriteBatch);
@@ -112,9 +111,9 @@ namespace SemiColinGames {
       // Draw in-world UI on top of everything.
       spriteBatch.Begin(
           SpriteSortMode.Deferred, null, SamplerState.PointClamp, null, null, null, null);
-      for (int i = 0; i < player.MaxHealth; i++) {
+      for (int i = 0; i < world.Player.MaxHealth; i++) {
         Vector2 pos = new Vector2(16 + 15 * i, 8);
-        if (player.Health > i) {
+        if (world.Player.Health > i) {
           spriteBatch.Draw(Textures.Heart.Get, pos, new Rectangle(0, 0, 16, 16), Color.White);
         } else {
           spriteBatch.Draw(Textures.Heart.Get, pos, new Rectangle(16, 0, 16, 16), Color.White);

Shared/SneakGame.cs

@@ -23,7 +23,6 @@ namespace SemiColinGames {
     int levelIdx = -1;
 
     Scene scene;
-    Player player;
     World world;
     LinesOfSight linesOfSight;
     Camera camera = new Camera();
@@ -68,7 +67,6 @@ namespace SemiColinGames {
 
     private void LoadLevel() {
       camera = new Camera();
-      player = new Player();
       levelIdx++;
       world = new World(Levels.ALL_LEVELS[levelIdx % Levels.ALL_LEVELS.Length]);
       scene?.Dispose();
@@ -115,14 +113,9 @@ namespace SemiColinGames {
       if (!paused) {
         float modelTime = (float) gameTime.ElapsedGameTime.TotalSeconds;
         Clock.AddModelTime(modelTime);
-        player.Update(modelTime, input, world.CollisionTargets);
-        world.Update(modelTime);
-        linesOfSight.Update(player, world.CollisionTargets);
-        camera.Update(player.Position, world.Width);
-        if (player.Health <= 0) {
-          world = new World(Levels.ALL_LEVELS[levelIdx % Levels.ALL_LEVELS.Length]);
-          player = new Player();
-        }
+        world.Update(modelTime, input);
+        linesOfSight.Update(world.Player, world.CollisionTargets);
+        camera.Update(world.Player.Position, world.Width);
       }
 
       base.Update(gameTime);
@@ -144,7 +137,7 @@ namespace SemiColinGames {
 
       Debug.SetFpsText(fpsText);
 
-      scene.Draw(gameTime.IsRunningSlowly, world, player, linesOfSight, paused);
+      scene.Draw(gameTime.IsRunningSlowly, world, linesOfSight, paused);
 
       base.Draw(gameTime);
       drawTimer.Stop();

Shared/World.cs

@@ -90,13 +90,14 @@ namespace SemiColinGames {
     public const int TileSize = 16;
     readonly Tile[] tiles;
     readonly Tile[] decorations;
-
     readonly NPC[] npcs = new NPC[1];
 
     // Size of World in terms of tile grid.
     private readonly int tileWidth;
     private readonly int tileHeight;
 
+    public Player Player { get; private set; }
+
     // Size of World in pixels.
     public int Width {
       get { return tileWidth * TileSize; }
@@ -107,6 +108,7 @@ namespace SemiColinGames {
     }
 
     public World(string levelSpecification) {
+      Player = new Player();
       npcs[0] = new NPC(new Point(16 * 38, 16 * 12));
       var tilesList = new List<Tile>();
       var decorationsList = new List<Tile>();
@@ -155,10 +157,18 @@ namespace SemiColinGames {
           new Vector2(Width + 1, 0), new Vector2(1, float.MaxValue));
     }
 
-    public void Update(float modelTime) {
+    public void Update(float modelTime, History<Input> input) {
+      Player.Update(modelTime, input, CollisionTargets);
       foreach (NPC npc in npcs) {
         npc.Update(modelTime);
       }
+      if (Player.Health <= 0) {
+        Reset();
+      }
+    }
+
+    void Reset() {
+      Player = new Player();
     }
 
     public void DrawBackground(SpriteBatch spriteBatch) {