Class: Rb2048::GameBoard

Inherits:
Object
  • Object
show all
Defined in:
lib/rb2048/game_board.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(size = 4, level = 2, win_standard = 2048) ⇒ GameBoard

Returns a new instance of GameBoard.



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# File 'lib/rb2048/game_board.rb', line 6

def initialize(size=4, level = 2,win_standard=2048)
  @size = size
  @elements = []

  @level = level
  @score = 0
  @start_timestamp = nil
  @end_timestamp = nil
  @status = 0 # -1 lost, 0 init/running, 1 win
  @win_standard = win_standard

  @last_action = nil
  @logger = LoggerMan
end

Instance Attribute Details

#elements ⇒ Object (readonly)

Returns the value of attribute elements.



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# File 'lib/rb2048/game_board.rb', line 5

def elements
  @elements
end

Instance Method Details

#all_zero_pos ⇒ Object 



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# File 'lib/rb2048/game_board.rb', line 250

def all_zero_pos
  zeros = []
  for i in (0..@size-1)
    for j in (0..@size-1)
      e = @elements[i][j]
      if e == 0
        zeros.push([i,j])
      end
    end
  end

  zeros
end

#bigger_then_zero(arr) ⇒ Object 



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# File 'lib/rb2048/game_board.rb', line 52

def bigger_then_zero(arr)
  arr.filter { |e| e > 0}
end

#check_dead_road ⇒ Object 



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# File 'lib/rb2048/game_board.rb', line 193

def check_dead_road
  dead_road = @size * 2

  for row_index in (0..@size-1)
    row = @elements[row_index]
    before = bigger_then_zero(row).clone
    after = merge(before)
    if before == after
      dead_road -= 1
    end
  end

  for col_index in (0..@size-1)
    col = []
    for row_index in (0..@size-1)
      col.push(@elements[row_index][col_index])
    end

    before = bigger_then_zero(col).clone
    after = merge(before)
    if before == after
      dead_road -= 1
    end
  end

  dead_road
end

#check_game_status ⇒ Object 



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# File 'lib/rb2048/game_board.rb', line 221

def check_game_status
  if @score >= @win_standard
    return @status = 1
  else
    if all_zero_pos.length == 0
      dead_road = check_dead_road
      if dead_road <= 0
        @status = -1
      end
    end
  end
end

#close_timer ⇒ Object 



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# File 'lib/rb2048/game_board.rb', line 189

def close_timer
  @end_timestamp = Time.now.to_i
end

#collect_max_score(result) ⇒ Object 



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# File 'lib/rb2048/game_board.rb', line 152

def collect_max_score(result)
  max_ = result.max
  if max_
    @score = @score > result.max ? @score : result.max
  end
end

#create_elements(init_elements = nil) ⇒ Object 



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# File 'lib/rb2048/game_board.rb', line 38

def create_elements(init_elements = nil)
  pos_values = init_elements || create_init_value

  max_nums = @size - 1
  for i in (0..max_nums)
    row = []
    for j in (0..max_nums)
      row.push(pos_values[i*@size+j])
    end
    @elements.push(row)
  end
  @elements
end

#create_init_value ⇒ Object 



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# File 'lib/rb2048/game_board.rb', line 21

def create_init_value
  total_count = @size ** 2
  init_value_count = total_count * @level / 10
  zero_value_count = total_count - init_value_count

  values = []
  for i in (0..init_value_count-1)
    values.push(rand_init)
  end

  for i in (0..zero_value_count-1)
    values.push(0)
  end

  values.shuffle
end

#create_new_number ⇒ Object 



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# File 'lib/rb2048/game_board.rb', line 238

def create_new_number
  zeros = all_zero_pos
  if zeros.length > 0
    x,y = zeros.sample
    new_number = rand_init
    @elements[x][y] = new_number
    {pos:[x,y], value: new_number}
  end

  return nil
end

#create_zero_array(len) ⇒ Object 



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# File 'lib/rb2048/game_board.rb', line 174

def create_zero_array(len)
  Array.new(len,0)
end

#down_merge ⇒ Object 



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# File 'lib/rb2048/game_board.rb', line 96

def down_merge
  @logger.log("Down", @elements)
  for col_index in (0..@size-1)
    col = []
    for row_index in (0..@size-1)
      col.push(@elements[row_index][col_index])
    end

    update_col = update_line(col.reverse).reverse
    # update
    for row_index in (0..@size-1)
      @elements[row_index][col_index] = update_col[row_index]
    end
  end
  @last_action = :DOWN
  @elements
end

#left_merge ⇒ Object 



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# File 'lib/rb2048/game_board.rb', line 56

def left_merge
  @logger.log("Left", @elements)
  for row_index in (0..@size-1)
    row = @elements[row_index]
    update_row = update_line(row)
    @elements[row_index] = update_row
  end
  @last_action = :LEFT
  @elements
end

#merge(arr) ⇒ Object 



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# File 'lib/rb2048/game_board.rb', line 159

def merge(arr)
  if arr.length <= 0
     return arr
  end
  result = arr.clone

  while true
    before = result.clone
    result = merge_once(result)
    break if before == result
  end

  return result
end

#merge_once(arr) ⇒ Object 



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# File 'lib/rb2048/game_board.rb', line 114

def merge_once(arr)

  if arr.length <= 1
    return arr
  end

  data = arr.clone
  result = []
  first = nil
  next_ = nil

  while !data.empty?
    if first == nil
      first = data.shift
    end

    if next_ == nil
      next_ = data.shift
    end

    if first != next_
      result.push(first)
      if next_
        data.unshift(next_)
      end
      first = nil
      next_ = nil
    else
      result.push(first + next_)

      first = nil
      next_ = nil
    end
  end

  return result
end

#rand_init ⇒ Object 



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# File 'lib/rb2048/game_board.rb', line 234

def rand_init
  2 ** rand(1..4)
end

#right_merge ⇒ Object 



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# File 'lib/rb2048/game_board.rb', line 67

def right_merge
  @logger.log("Right", @elements)
  for row_index in (0..@size-1)
    row = @elements[row_index]
    update_row = update_line(row.reverse)
    @elements[row_index] = update_row.reverse
  end
  @last_action = :RIGHT
  @elements
end

#start_timer ⇒ Object 



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# File 'lib/rb2048/game_board.rb', line 185

def start_timer
  @start_timestamp = Time.now.to_i
end

#tun_result ⇒ Object 



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# File 'lib/rb2048/game_board.rb', line 264

def tun_result
  tun_new_value = create_new_number

  check_game_status

  data = []
  for i in (0..@elements.length-1)
    row = []
    for j in (0..@elements.length-1)
      row.push(@elements[i][j])
    end
    data.push(row)
  end

  return {
    data: data,
    size: @size,
    level: @level,
    score: @score,
    last_action: @last_action,
    start_timestamp: @start_timestamp,
    end_timestamp: @end_timestamp,
    status: @status,
    tun_new_value: tun_new_value
  }
end

#up_merge ⇒ Object 



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# File 'lib/rb2048/game_board.rb', line 79

def up_merge
  @logger.log("UP", @elements)
  for col_index in (0..@size-1)
    col = []
    for row_index in (0..@size-1)
      col.push(@elements[row_index][col_index])
    end
    update_col = update_line(col)

    for row_index in (0..@size-1)
      @elements[row_index][col_index] = update_col[row_index]
    end
  end
  @last_action = :UP
  @elements
end

#update_line(arr) ⇒ Object 



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# File 'lib/rb2048/game_board.rb', line 178

def update_line(arr)
  size = arr.length
  compact = merge(bigger_then_zero(arr))
  collect_max_score(compact)
  compact.concat(create_zero_array(size - compact.length))
end