title: How to set tiles dynamically in a tilemap?
body: <p>I have a pre-created tile map with red tiles. I want to be able to go through my tilemap and if a tile is a red tile then set it to a blue tile. </p>
  
  <p>I have the following idea </p>
  
  <pre><code>public Tile blue;
  public Tile red;
  </code></pre>
  
  <p>I am not sure however how to loop through all tiles and then set the tile next to it to red if the tile is blue.</p>
  
  <p>Can anyone give me any suggestions?</p>