Class: SeaBattle::Board

Inherits:
Object
  • Object
show all
Includes:
Support
Defined in:
lib/sea_battle/board.rb

Overview

It’s Board of game Sea Battle

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Support

#mixed_board_positions

Constructor Details

#initialize(board = "1" * 100, status = :initialized) ⇒ Board

Returns a new instance of Board.



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# File 'lib/sea_battle/board.rb', line 14

def initialize(board = "1" * 100, status = :initialized)
  @horizontal, @vertical = 10, 10

  load_board(board)

  @status = status
  check_board
end

Instance Attribute Details

#board ⇒ Object (readonly)

Returns the value of attribute board.



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# File 'lib/sea_battle/board.rb', line 12

def board
  @board
end

#horizontal ⇒ Object (readonly)

Returns the value of attribute horizontal.



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# File 'lib/sea_battle/board.rb', line 12

def horizontal
  @horizontal
end

#status ⇒ Object (readonly)

Returns the value of attribute status.



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# File 'lib/sea_battle/board.rb', line 12

def status
  @status
end

#vertical ⇒ Object (readonly)

Returns the value of attribute vertical.



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# File 'lib/sea_battle/board.rb', line 12

def vertical
  @vertical
end

Instance Method Details

#activate_board ⇒ Object

When all ships are on board then board can be activated Return true when board was activated



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# File 'lib/sea_battle/board.rb', line 25

def activate_board
  result = 0
  @board.flatten.each do |cell|
    result += 1 if cell.is_in_ship?
  end
  return false unless result == 20
  @status = :activated
  true
end

#attack(row, column) ⇒ Object 



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# File 'lib/sea_battle/board.rb', line 35

def attack(row, column)
  if @status == :activated
    board[row][column].attack
    is_sunken_ship?(row, column)
    is_finished?
  end
end

#is_attacked?(row, column) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/sea_battle/board.rb', line 43

def is_attacked?(row, column)
  board[row][column].is_attacked?
end

#is_in_ship?(row, column) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/sea_battle/board.rb', line 47

def is_in_ship?(row, column)
  board[row][column].is_in_ship?
end

#is_sunken_ship?(row, column) ⇒ Boolean

Return true if on position (row, column) is the ship which is sunked Return false if on position (row, column) is not the ship which is sunked or don’t exist the ship

Returns:

  • (Boolean) 


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# File 'lib/sea_battle/board.rb', line 54

def is_sunken_ship?(row, column)
  positions = ship_positions(row, column)
  return false if positions.empty?
  is_sunk = true
  positions.each do |position_row, position_column|
    is_sunk = false unless board[position_row][position_column].is_attacked?
  end
  if is_sunk
    positions.each do |position_row, position_column|
      board[position_row][position_column].sunk
    end
  end
  is_sunk
end

#random_position ⇒ Object

Return position to attack (have not attacked)



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# File 'lib/sea_battle/board.rb', line 70

def random_position
  mixed_board_positions.each do |row, column|
    return [row, column] unless is_attacked?(row, column)
  end
end

#random_ships ⇒ Object

Set ships on the board (random positions)



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# File 'lib/sea_battle/board.rb', line 77

def random_ships
  return unless @status == :initialized
  reset_board
  [1, 1, 1, 1, 2, 2, 2, 3, 3, 4].each do |length|
    RandomShip.new(self, length).add_ship
  end
end

#ship_positions(row, column) ⇒ Object

Return array of position ship if it will be on position [row, column]



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# File 'lib/sea_battle/board.rb', line 86

def ship_positions(row, column)
  horizontal = horizontal_ship_position(row, column)
  vertical = vertical_ship_position(row, column)
  return horizontal if horizontal.size > vertical.size
  vertical
end