properly handle non-rectangular input string[]s

GitOrigin-RevId: eb580f2e9c

Shared/World.cs

@@ -1,7 +1,7 @@
 using Microsoft.Xna.Framework;
 using Microsoft.Xna.Framework.Graphics;
-using System;
 using System.Collections.Generic;
+using System.Linq;
 
 namespace SemiColinGames {
   enum Terrain {
@@ -111,41 +111,44 @@ namespace SemiColinGames {
 "...................................................................]  [.............]   [..............................................................]  [......................................................." };
 
     public World(Texture2D texture) {
-      width = worldDesc[0].Length;
+      width = worldDesc.AsQueryable().Max(a => a.Length);
       height = worldDesc.Length;
+      Debug.WriteLine("world size: {0}x{1}", width, height);
       tiles = new Tile[width, height];
       for (int j = 0; j < height; j++) {
         for (int i = 0; i < width; i++) {
-          Terrain terrain;
-          switch (worldDesc[j][i]) {
-            case '=':
-              terrain = Terrain.Grass;
-              break;
-            case '<':
-              terrain = Terrain.GrassL;
-              break;
-            case '>':
-              terrain = Terrain.GrassR;
-              break;
-            case '.':
-              terrain = Terrain.Rock;
-              break;
-            case '[':
-              terrain = Terrain.RockL;
-              break;
-            case ']':
-              terrain = Terrain.RockR;
-              break;
-            case '~':
-              terrain = Terrain.Water;
-              break;
-            case 'X':
-              terrain = Terrain.Block;
-              break;
-            case ' ':
-            default:
-              terrain = Terrain.Empty;
-              break;
+          Terrain terrain = Terrain.Empty;
+          if (i < worldDesc[j].Length) {
+            switch (worldDesc[j][i]) {
+              case '=':
+                terrain = Terrain.Grass;
+                break;
+              case '<':
+                terrain = Terrain.GrassL;
+                break;
+              case '>':
+                terrain = Terrain.GrassR;
+                break;
+              case '.':
+                terrain = Terrain.Rock;
+                break;
+              case '[':
+                terrain = Terrain.RockL;
+                break;
+              case ']':
+                terrain = Terrain.RockR;
+                break;
+              case '~':
+                terrain = Terrain.Water;
+                break;
+              case 'X':
+                terrain = Terrain.Block;
+                break;
+              case ' ':
+              default:
+                terrain = Terrain.Empty;
+                break;
+            }
           }
           var position = new Rectangle(i * TileSize, j * TileSize, TileSize, TileSize);
           tiles[i, j] = new Tile(texture, terrain, position);