Module: PRINTER

Included in:
Board
Defined in:
lib/printer.rb

Constant Summary collapse

@@n = 
0
1

Instance Method Summary collapse

Instance Method Details



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# File 'lib/printer.rb', line 37

def print_board(piece_locations)
  printer { |i, j|

    # Print preceeding row index (1...8) if applicable
    if j then print " #{j} " else print "   " end
    if @@n < 3
      # Print cell (4 characters wide, 3 characters tall)
      4.times do
        color = piece_locations[@@print_count]["color"] || "black"
        next_color = piece_locations[@@print_count+1]["color"] || "black"
        print "#{i}".gsub("XX", piece_locations[@@print_count]["type"][0..1].upcase).colorize(:"#{color}").on_light_white
        print "#{i}".gsub("XX", piece_locations[@@print_count+1]["type"][0..1].upcase).colorize(:"#{next_color}").on_light_black
        if "#{i}".include? "XX"
          # Incremenet print_count, unless last cell is being printed, to avoid an out of range error
          @@print_count += 2 unless @@print_count == 63
        end
      end
    else
      # Print cell starting with alternative color (4 characters wide, 3 characters tall)
      4.times do
        color = piece_locations[@@print_count]["color"] || "black"
        next_color = piece_locations[@@print_count+1]["color"] || "black"
        print "#{i}".gsub("XX", piece_locations[@@print_count]["type"][0..1].upcase).colorize(:"#{color}").on_light_black
        print "#{i}".gsub("XX", piece_locations[@@print_count+1]["type"][0..1].upcase).colorize(:"#{next_color}").on_light_white
        if "#{i}".include? "XX"
          @@print_count += 2 unless @@print_count == 63
        end
      end
    end

    # Print succeeding row index (1...8) if applicable
    if (@@n == 1 || @@n == 4) && j then print " #{j}" end

    # Incriment row index. Reset once n reaches 6 (i.e., two complete cell rows have been printed - the pattern to repeat)
    @@n += 1
    if @@n == 6 then @@n = 0 end
    puts ""
  }
end

#printer ⇒ Object

Prints the board to terminal, based on layout defined by piece_locations



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# File 'lib/printer.rb', line 12

def printer
  
  # Clear and reset counters
  @@print_count = 1
  system "clear" or system "cls"

  # Header (title & column labels)
  print "\n\t>> Welcome to Terminal Chess v#{VERSION}\n\n\s\s\s"
  COLS.each { |c| print " _#{c}__ " }
  puts "\n"

  # Print Cells (use printer block and pass cell styling in loop below)
  (1..8).each do |row|
    yield "|    |"
    yield "| XX |", "#{row}"
    yield "|____|"
  end

  # Footer (print column labels)
  print "\s\s\s"
  COLS.each { |c| print "  #{c}   " }
  puts ""
end