
Country View:
  * Click in top left corner to enable all cities.
  
City View:
  * '+' key to add a lot to the city.
  
Metro Screen:
  * Click in top left corner to END game. You should only do this when the scores are not
    equal, and when it's your turn, or otherwise you'll get unpredictable results.
    
  * Press F1 to toggle edit mode.
  
  Edit Mode:
    * F3/Shift F3 while pointing mouse at a slot on board: next/previous color of fill piece.
    * Control-F3 while pointing mouse at a slot on board: remove fill piece.
    * F4/Shift F4 while pointing mouse at a slot on board: next/previous type of fill piece.
    * Control-F4 makes a space a PLUG. Pressing again removes the plug.
   
When editing the xml file:

  Map characters:
    1-9: Direction of an arrow.
    '.': Stop
    'W': Dead Wood
    'R': Dead Rock
    'h': Dead Wood Helium
    'H': Dead Rock Helium
    'l': Dead Wood Level
    'L': Dead Rock Level

  Lot characteristics:
    aiSkill :   a number that indicates the number of half-moves that the AI searches ahead. 
                Less than 4 is pretty dumb, more than 10 would be very slow but VERY strong.
                Even numbers are pessimistic, while odd numbers are optimistic.
                
    ai4weight : a number that indicates how much weight the AI gives to a 4-in-a-row. should 
                be at least 250 and can be as high as 1000000, though higher than 3000 or so 
                probably won't make a difference. Can range from 0 (in which case the AI will 
                probably AVOID making a 4-in-a-row) to 2^31 (around 2 billion).


Checker Types:

NormalChecker
RowShiftLeft
RowShiftRight
Exploder
Drill
Helium
HeavyChecker
ColorFlip
Level3
Level4
Fire
Water
