Class: Gomoku::Window

Inherits:
Gosu::Window
  • Object
show all
Defined in:
lib/gomoku/window.rb

Overview

Main Gomoku window and game loop

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Window

Returns a new instance of Window.



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# File 'lib/gomoku/window.rb', line 4

def initialize
  super 800, 800, false
  self.caption = 'Gomoku'
  @board = Board.new(self)
  @black_player = Human.new(self, @board, :black)
  @white_player = Human.new(self, @board, :white)
  # @white_player = Computer.new(self, @board, :white)
  # Start a new game
  new_game
end

Instance Method Details

#button_down(id) ⇒ Object 



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# File 'lib/gomoku/window.rb', line 29

def button_down(id)
  case id
  when Gosu::KbEscape
    close
  when Gosu::MsLeft
    process_click
  end
end

#button_up(_id) ⇒ Object 



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# File 'lib/gomoku/window.rb', line 55

def button_up(_id)
end

#do_move(move) ⇒ Object 



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# File 'lib/gomoku/window.rb', line 73

def do_move(move)
  r = move[0]
  c = move[1]
  # Return if not blank
  return unless @board.state[[r, c]] == :empty
  # Perform move
  @board.state[[r, c]] = @turn
  # Update turn
  @turn = Utility.toggle_color(@turn)
  # Update flag
  @done_turn = true
end

#draw ⇒ Object 



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# File 'lib/gomoku/window.rb', line 102

def draw
  @board.draw
  if @winner
    # Mark the winning sequence
    draw_winner
  else
    # No winner, draw the current player
    case @turn
    when :black
      @black_player.draw
    when :white
      @white_player.draw
    end
  end
end

#draw_winner ⇒ Object

Draw three adjacent 1px lines to make a single 3px line. Worst code I ever wrote.



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# File 'lib/gomoku/window.rb', line 120

def draw_winner
  case @winner_direction
  when :horizontal
    line_x1_1 = Utility.c_to_x(@winner_c)
    line_y1_1 = Utility.r_to_y(@winner_r) + 20
    line_x1_2 = Utility.c_to_x(@winner_c + 5)
    line_y1_2 = Utility.r_to_y(@winner_r) + 20

    line_x2_1 = line_x1_1
    line_y2_1 = line_y1_1 + 1
    line_x2_2 = line_x1_2
    line_y2_2 = line_y1_2 + 1

    line_x3_1 = line_x1_1
    line_y3_1 = line_y1_1 + 2
    line_x3_2 = line_x1_2
    line_y3_2 = line_y1_2 + 2
  when :vertical
    line_x1_1 = Utility.c_to_x(@winner_c) + 20
    line_y1_1 = Utility.r_to_y(@winner_r)
    line_x1_2 = Utility.c_to_x(@winner_c) + 20
    line_y1_2 = Utility.r_to_y(@winner_r + 5)

    line_x2_1 = line_x1_1 + 1
    line_y2_1 = line_y1_1
    line_x2_2 = line_x1_2 + 1
    line_y2_2 = line_y1_2

    line_x3_1 = line_x1_1 + 2
    line_y3_1 = line_y1_1
    line_x3_2 = line_x1_2 + 2
    line_y3_2 = line_y1_2
  when :diagonal_up
    line_x1_1 = Utility.c_to_x(@winner_c)
    line_y1_1 = Utility.r_to_y(@winner_r + 1)
    line_x1_2 = Utility.c_to_x(@winner_c + 5)
    line_y1_2 = Utility.r_to_y(@winner_r - 4)

    line_x2_1 = line_x1_1
    line_y2_1 = line_y1_1 + 1
    line_x2_2 = line_x1_2 + 1
    line_y2_2 = line_y1_2

    line_x3_1 = line_x1_1 + 1
    line_y3_1 = line_y1_1 + 1
    line_x3_2 = line_x1_2 + 1
    line_y3_2 = line_y1_2 + 1
  when :diagonal_down
    line_x1_1 = Utility.c_to_x(@winner_c)
    line_y1_1 = Utility.r_to_y(@winner_r)
    line_x1_2 = Utility.c_to_x(@winner_c + 5)
    line_y1_2 = Utility.r_to_y(@winner_r + 5)

    line_x2_1 = line_x1_1 + 1
    line_y2_1 = line_y1_1
    line_x2_2 = line_x1_2
    line_y2_2 = line_y1_2 - 1

    line_x3_1 = line_x1_1
    line_y3_1 = line_y1_1 + 1
    line_x3_2 = line_x1_2 - 1
    line_y3_2 = line_y1_2
  end

  # Render the three lines
  draw_line(line_x1_1, line_y1_1, Gosu::Color.argb(0xffff0000),
            line_x1_2, line_y1_2, Gosu::Color.argb(0xffff0000), 2, :default)
  draw_line(line_x2_1, line_y2_1, Gosu::Color.argb(0xffff0000),
            line_x2_2, line_y2_2, Gosu::Color.argb(0xffff0000), 2, :default)
  draw_line(line_x3_1, line_y3_1, Gosu::Color.argb(0xffff0000),
            line_x3_2, line_y3_2, Gosu::Color.argb(0xffff0000), 2, :default)
end

#needs_cursor? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/gomoku/window.rb', line 25

def needs_cursor?
  true
end

#new_game ⇒ Object 



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# File 'lib/gomoku/window.rb', line 15

def new_game
  # Reset the board
  @board.reset
  # Black goes first
  @turn = :black
  # Setup flag to indicate a turn needs to be processed
  @done_turn = false
  @winner = false
end

#process_click ⇒ Object 



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# File 'lib/gomoku/window.rb', line 38

def process_click
  if @winner
    # We already have a winner, so start new game
    new_game
  else
    # Get the location of the click
    click_r = Utility.y_to_r(mouse_y)
    click_c = Utility.x_to_c(mouse_x)
    case @turn
    when :black
      @black_player.click(click_r, click_c)
    when :white
      @white_player.click(click_r, click_c)
    end
  end
end

#process_turn ⇒ Object

Loop through board cells and check winner, break when found



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# File 'lib/gomoku/window.rb', line 87

def process_turn
  Board.each_r_c do |r, c|
    win = @board.check_win(r, c)
    unless win == :none
      @winner = true
      @winner_direction = win
      @winner_r = r
      @winner_c = c
      break
    end
  end
  # Done processing, reset flag
  @done_turn = false
end

#update ⇒ Object 



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# File 'lib/gomoku/window.rb', line 58

def update
  case @turn
  when :black
    @black_player.update
    move = @black_player.pick_move
  when :white
    @white_player.update
    move = @white_player.pick_move
  end
  # Perform the move
  do_move(move) if move
  # Process the turn if done
  process_turn if @done_turn
end