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 {
@@ -111,12 +111,14 @@ 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;
+          Terrain terrain = Terrain.Empty;
+          if (i < worldDesc[j].Length) {
             switch (worldDesc[j][i]) {
               case '=':
                 terrain = Terrain.Grass;
@@ -147,6 +149,7 @@ namespace SemiColinGames {
                 terrain = Terrain.Empty;
                 break;
             }
+          }
           var position = new Rectangle(i * TileSize, j * TileSize, TileSize, TileSize);
           tiles[i, j] = new Tile(texture, terrain, position);
         }