class GameOfLife

Attributes

field[RW]

Public Class Methods

new(m, n) click to toggle source

# File lib/game_life.rb, line 5
def initialize (m, n)
  @m, @n = m, n
  @field = Array.new(m) { Array.new(n) { rand(2) } }
end

Public Instance Methods

neighbors(x, y) click to toggle source

# File lib/game_life.rb, line 10
def neighbors (x, y)
  s=0
  (-1..1).to_a.each do |i|
    (-1..1).to_a.each { |j| s += @field[(x+i) % @m][(y+j) % @n] }
  end
  s-@field[x][y]
end

rules(x, y) click to toggle source

# File lib/game_life.rb, line 18
def rules (x, y)
  if (neighbors(x ,y) == 3)
    return 1
  elsif (@field[x][y] == 1 && neighbors(x, y) == 2)
    return 1
  else
    return 0
  end
end

step() click to toggle source

# File lib/game_life.rb, line 28
def step
  field_copy = Array.new(@m) { Array.new(@n) { 0 } }
  @field.each_with_index do |row, i|
    row.each_with_index do |elem, j|
      field_copy[i][j] = rules(i, j)
    end
  end
  @field = field_copy
end