Newtonsoft.Json -> System.Text.Json for SneakWorld.cs

Shared/SneakWorld.cs

@@ -1,8 +1,8 @@
 using Microsoft.Xna.Framework;
 using Microsoft.Xna.Framework.Graphics;
-using Newtonsoft.Json.Linq;
 using System;
 using System.Collections.Generic;
+using System.Text.Json;
 
 namespace SemiColinGames {
 
@@ -14,7 +14,7 @@ namespace SemiColinGames {
     private readonly Tile[] obstacles;
     private readonly Tile[] decorations;
     // Kept around for resetting the world's entities after player death or level restart.
-    private readonly JToken entitiesLayer;
+    private readonly JsonElement entitiesLayer;
     private NPC[] npcs;
 
     public Player Player { get; private set; }
@@ -31,17 +31,17 @@ namespace SemiColinGames {
       Camera = new Camera();
       LinesOfSight = new LinesOfSight(graphics);
 
-      JObject root = JObject.Parse(json);
-      Width = root.SelectToken("width").Value<int>();
-      Height = root.SelectToken("height").Value<int>();
+      JsonElement jsonRoot = JsonDocument.Parse(json).RootElement;
+      Width = jsonRoot.GetProperty("width").GetInt32();
+      Height = jsonRoot.GetProperty("height").GetInt32();
 
       List<Tile> hazardTiles = new List<Tile>();
       List<Tile> obstacleTiles = new List<Tile>();
       List<Tile> obstacleTiles8 = new List<Tile>();
       List<Tile> decorationTiles = new List<Tile>();
       List<Tile> backgroundTiles = new List<Tile>();
-      foreach (JToken layer in root.SelectToken("layers").Children()) {
-        string layerName = layer.SelectToken("name").Value<string>();
+      foreach (JsonElement layer in jsonRoot.GetProperty("layers").EnumerateArray()) {
+        string layerName = layer.GetProperty("name").GetString();
         if (layerName == "entities") {
           entitiesLayer = layer;
           (Player, npcs) = ParseEntities(layer);
@@ -99,21 +99,22 @@ namespace SemiColinGames {
       GC.SuppressFinalize(this);
     }
 
-    private List<Tile> ParseLayer(JToken layer) {
-      string layerName = layer.SelectToken("name").Value<string>();
+    private List<Tile> ParseLayer(JsonElement layer) {
+      string layerName = layer.GetProperty("name").GetString();
 
       var tileList = new List<Tile>();
 
-      int layerWidth = layer.SelectToken("gridCellsX").Value<int>();
-      int layerHeight = layer.SelectToken("gridCellsY").Value<int>();
+      int layerWidth = layer.GetProperty("gridCellsX").GetInt32();
+      int layerHeight = layer.GetProperty("gridCellsY").GetInt32();
       gridWidth = Math.Max(gridWidth, layerWidth);
       gridHeight = Math.Max(gridHeight, layerHeight);
 
       int dataIndex = -1;
-      int tileWidth = layer.SelectToken("gridCellWidth").Value<int>();
-      int tileHeight = layer.SelectToken("gridCellHeight").Value<int>();
+      int tileWidth = layer.GetProperty("gridCellWidth").GetInt32();
+      int tileHeight = layer.GetProperty("gridCellHeight").GetInt32();
       int textureWidth = Textures.Grassland.Get.Width / tileWidth;
-      foreach (int textureIndex in layer.SelectToken("data").Values<int>()) {
+      foreach (JsonElement textureIndexElement in layer.GetProperty("data").EnumerateArray()) {
+        int textureIndex = textureIndexElement.GetInt32();
         dataIndex++;
         if (textureIndex == -1) {
           continue;
@@ -133,14 +134,14 @@ namespace SemiColinGames {
       return tileList;
     }
 
-    private (Player, NPC[]) ParseEntities(JToken layer) {
+    private (Player, NPC[]) ParseEntities(JsonElement layer) {
       Player player = null;
       List<NPC> npcs = new List<NPC>();
-      foreach (JToken entity in layer.SelectToken("entities").Children()) {
-        string name = entity.SelectToken("name").Value<string>();
-        int x = entity.SelectToken("x").Value<int>();
-        int y = entity.SelectToken("y").Value<int>();
-        int facing = entity.SelectToken("flippedX").Value<bool>() ? -1 : 1;
+      foreach (JsonElement entity in layer.GetProperty("entities").EnumerateArray()) {
+        string name = entity.GetProperty("name").GetString();
+        int x = entity.GetProperty("x").GetInt32();
+        int y = entity.GetProperty("y").GetInt32();
+        int facing = entity.GetProperty("flippedX").GetBoolean() ? -1 : 1;
         if (name == "player") {
           player = new Player(new Vector2(x, y), facing);
         } else if (name == "executioner") {