add more obstacles to world

GitOrigin-RevId: 4352f7ca81

Jumpy.Shared/World.cs

@@ -75,6 +75,12 @@ namespace Jumpy {
           if (j == 3 && 15 < i && i < 19) {
             terrain = Terrain.Grass;
           }
+          if (j == 7 && i == 5) {
+            terrain = Terrain.Grass;
+          }
+          if (7 <= j && j <= 10 && i == 12) {
+            terrain = Terrain.Rock;
+          }
           var position = new Rectangle(i * TileSize, j * TileSize, TileSize, TileSize);
           tiles[i, j] = new Tile(texture, terrain, position);
         }