Second, a Two-Dimensional Array to Describe Our Game World

We put this game world into an array. Each number in the array rows and columns represents a tile number in our game world. So, a 0 would paint the first tile in the tile sheet (the blue wall), a 1 would be gray road tile, and so on.

world.map=[
   [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
  ,[0,1,2,1,1,1,1,1,1,1,1,1,1,1,0]
  ,[0,1,0,1,0,0,1,0,1,0,0,1,0,1,0]
  ,[0,1,0,1,0,0,1,0,1,0,0,1,0,1,0]
  ,[0,1,0,1,0,0,1,1,1,0,0,1,0,1,0]
  ,[0,2,1,1,1,1,0,0,0,1,1,1,1,1,0]
  ,[0,1,0,0,0,1,0,0,0,1,0,0,0,1,0]
  ,[0,1,1,1,2,1,0,0,0,1,1,1,1,1,0]
  ,[0,0,0,0,0,1,1,1,1,1,0,0,0,0,0]
  ,[0,1,1,1,1,1,0,0,0,1,1,1,1,1,0]
  ,[0,1,0,1,0,0,1,1,1,0,0,1,0,1,0]
  ,[0,1,0,1,0,0,2,0,0,0,0,1,0,1,0]
  ,[0,1,0,1,0,0,1,0,1,0,0,1,0,1,0]
  ,[0,1,1,1,1,1,1,2,1,1,1,1,1,1,0]
  ,[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
 ];

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