#5 Custom blocks doesn't appear in the radar

[Ismael Orenstein]

When a level uses custom blocks (like the Rox one), they don't appear in the radar screen. This happens because the radar only checks map.data[INDEX]==BLOCK, and it should check map.data[INDEX]==BLOCK || map.data[INDEX]==CUSTOM_BLOCK1 || map.data[INDEX]==CUSTOM_BLOCK2, etc.
When we rewrite the map data stuff, we will add a field: passable. Then it will just check if the tile is passable or not.