baseline code for stupid 2048 ai

baseline_yatteru.rb

class Array
  def rot
    self.transpose.map(&:reverse)
  end
end
def left a
  ar=a.dup
  tmp=(1..4).map{[]}
  merged=(1..4).map{[]}
  (0..3).each do|i|
    (0..3).each do|j|
      tmp[i]<<ar[i][j]
      merged[i]<<0
      if tmp[i].size>1&&tmp[i][-1]==tmp[i][-2]&&merged[i][-2]==0
        ad=tmp[i][-2]*2
        tmp[i].pop;tmp[i].pop;
        merged[i].pop
        merged[i].pop
        tmp[i]<<ad;merged[i]<<1
      end
    end
  end
  (0..3).each{|i|tmp[i][4]=0;tmp[i].pop;tmp[i].map!{|i|i||0}}
  tmp
end
def down a
  left(a.rot).rot.rot.rot
end
def right a
  left(a.rot.rot).rot.rot
end
def up a
  left(a.rot.rot.rot).rot
end
def perf c,a
  if c=='u'
    up a
  elsif c=='d'
    down a
  elsif c=='l'
    left a
  else
    right a
  end
end
def full c
  if c=='u'
    "UP"
  elsif c=='d'
    "DOWN"
  elsif c=='l'
    "LEFT"
  else
    "RIGHT"
  end
end
arr=[[0,0,0,0],[0,0,0,0],[0,0,0,0],[0,0,0,0]]
$>.sync=true