catparade/todo

http://www.w3schools.com/games/tryit.asp?filename=trygame_default_gravity

cat game ???
        gems
        diff kinds of cats, and food

	swap cat with food = cat chomps food.  minor points for food vanish.
                food:  dry food
                food:  wet food
                food:  cheese
                food:  ham

	cat gets fatter ?

        line of diff cats = cat parade.  medium points.
        line of same cats = big points!
        line of cats with goat at the end = get rid of lots!

	any parade gives you more moves.


	game params:
		# of moves limit
		score

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*animate parades
*animate chomps
*offset entire grid downwards to allow space for a header
*add images
*award points for stuff
*show score up the top
*animated points gaining (text fading out)
*touch events:
*	touchstart: a finger is placed on a DOM element.
*	touchmove: a finger is dragged along a DOM element.
*	touchend: a finger is removed from a DOM element.

phone fixes as per http://www.html5rocks.com/en/mobile/touch/


make path part of game object
make things part of game object

ideas:
	llamas don't appear after the start, you just have to get rid of them all?

ensure that start of game has at least one valid move!




end if no valid moves
	after each move:

		are all cats locked?  if so, game over.

		for each cell, 
			for each dir,
				check paths for all lengths
		if none found, game over