Class: Dat::Leaves

Inherits:
Object
  • Object
show all
Defined in:
lib/dat/leaves.rb

Instance Method Summary collapse

Constructor Details

#initialize(game, depth = 4) ⇒ Leaves

Returns a new instance of Leaves.



3
4
5
6
7
8
9
10
11
12
 
# File 'lib/dat/leaves.rb', line 3

def initialize(game, depth=4)
  @game = game
  @logic = @game.logic
  @dict = @game.dict

  @depth = depth
  @leaves = Array.new(@depth+1) { {} }

  calculate
end

Instance Method Details

#[](word) ⇒ Object 



14
15
16
17
18
19
20
 
# File 'lib/dat/leaves.rb', line 14

def [](word)
  1.upto(@depth) do |i|
    leaf = @leaves[i][word]
    return leaf if leaf
  end
  nil
end

#calculate ⇒ Object 



38
39
40
41
42
43
44
 
# File 'lib/dat/leaves.rb', line 38

def calculate
  @dict.each do |k,v|
    result = @logic.perturb(k)
    size = result.size
    @leaves[size][k] = result if size <= @depth
  end
end

#get(size) ⇒ Object 



33
34
35
36
 
# File 'lib/dat/leaves.rb', line 33

def get(size)
  return nil if size > @depth
  @leaves[size]
end

#leaf?(word) ⇒ Boolean

Returns:

  • (Boolean) 


22
23
24
 
# File 'lib/dat/leaves.rb', line 22

def leaf?(word)
  level(word)
end

#level(word) ⇒ Object 



26
27
28
29
30
31
 
# File 'lib/dat/leaves.rb', line 26

def level(word)
  1.upto(@depth) do |i|
    leaf = @leaves[i][word]
    return i if leaf
  end
end

#update ⇒ Object 



46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
 
# File 'lib/dat/leaves.rb', line 46

def update
  @game.last.relatives.clone.add(@game.last).each do |w|
  #@game.used.each do |u|
    @logic.perturb(u.get, @game.used).each do |w|
      1.upto(@depth) do |i|
        @leaves[i].delete(u.get) if @leaves[i][u.get]
        leaf = @leaves[i][w.get]
        if leaf && leaf.include?(w)
          (@leaves[i-1][w.get] = leaf.clone).delete(w)
          @leaves[i].delete(w.get)
        end
      end
    end
  end
  @leaves[0] # Immediate winning moves
end