valid move

valid.rb

x_position = 0
y_position = 0

	possible_moves = []
   
   #vertical
   vert_x =Array.new(8, x_position)
   vert_y =(0..7).to_a
   ary_vert = vert_x.zip(vert_y)
   
   #horizontal
   horiz_y =Array.new(8,y_position)
   horiz_x =(0..7).to_a
   ary_horiz = horiz_x.zip(horiz_y)

   for ary in ary_vert do 
   		possible_moves << ary
   	end

   for ary in ary_horiz do 
   		possible_moves << ary
   	end

   	#diagonals

	5.times do |n|
	 	possible_moves << [x_position+(n+1), y_position+(n+1)]
	 	possible_moves << [x_position+(-n-1), y_position+(n+1)]
	 	possible_moves << [x_position+(-n-1), y_position+(-n-1)]
	 	possible_moves << [x_position+(n+1), y_position+(-n-1)]

	 end

	 #filter out positions off the board
	 possible_moves.delete_if do |position|
	 	position[0] < 0 || position[1] < 0
	 end

	 possible_moves.delete_if do |position|
	 	position[0] > 7 || position[1] > 7
	 end
	 p possible_moves