200 lines
4.4 KiB
Ruby
Executable file
200 lines
4.4 KiB
Ruby
Executable file
#!/usr/bin/env ruby
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require 'curses'
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module MyHunt
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class Cell
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attr_accessor :mine,
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:open
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def initialize( mine: false, open: false )
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@mine = mine
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@open = open
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end
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def explore
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@open = true
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@mine
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end
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end
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class Board
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attr_reader :width,
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:height,
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:field,
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:explorer_x,
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:explorer_y
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def initialize( number_of_mines = 20, height = 8, width = 16 )
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@height = height
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@width = width
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@explorer_x = 0
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@explorer_y = 0
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@field = {}
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@width.times do |x|
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@height.times do |y|
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@field[[x, y]] = Cell.new( open: x.zero? && y.zero? )
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end
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end
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placed_mines = 0
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while placed_mines < number_of_mines
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coordinates = [rand( @width ), rand( @height )]
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next if coordinates == [0, 0]
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next if @field[ coordinates ].mine
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@field[ coordinates ].mine = true
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placed_mines += 1
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end
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end
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def update_explorer_location( direction )
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case direction
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when 'up'
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@explorer_y -= 1 if @explorer_y.positive?
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when 'right'
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@explorer_x += 1 if @explorer_x < (@width - 1)
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when 'down'
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@explorer_y += 1 if @explorer_y < (@height - 1)
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when 'left'
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@explorer_x -= 1 if @explorer_x.positive?
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when 'up-right'
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if @explorer_x < (@width - 1) && @explorer_y.positive?
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@explorer_x += 1
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@explorer_y -= 1
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end
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when 'down-right'
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if @explorer_x < (@width - 1) && @explorer_y < (@height - 1)
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@explorer_x += 1
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@explorer_y += 1
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end
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when 'down-left'
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if @explorer_x.positive? && @explorer_y < (@height - 1)
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@explorer_x -= 1
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@explorer_y += 1
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end
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when 'up-left'
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if @explorer_x.positive? && @explorer_y.positive?
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@explorer_x -= 1
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@explorer_y -= 1
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end
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end
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end
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def move( direction )
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update_explorer_location( direction )
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{ dead: @field[[@explorer_x, @explorer_y]].explore,
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victory: @explorer_x == (@width - 1) && @explorer_y == (@height - 1) }
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end
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def count_nearby_mines
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counter = 0
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[@explorer_x - 1, @explorer_x, @explorer_x + 1].each do |x|
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[@explorer_y - 1, @explorer_y, @explorer_y + 1].each do |y|
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next if x.negative?
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next if y.negative?
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next if x == @width
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next if y == @height
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next if x == @explorer_x && y == @explorer_y
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counter += 1 if @field[[x, y]].mine
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end
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end
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counter
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end
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end
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end
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field = MyHunt::Board.new
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def display_curses( field, state = { dead: false, victory: false } )
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Curses.setpos 0, 0
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if state[:dead]
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Curses.addstr 'You died! :('
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elsif state[:victory]
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Curses.addstr 'You won!! :)'
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else
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Curses.addstr "nearby: #{field.count_nearby_mines}"
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end
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field.height.times do |y|
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field.width.times do |x|
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Curses.setpos y + 2, x
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if [field.explorer_x, field.explorer_y] == [x, y]
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Curses.addch 'o'
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elsif [field.width, field.height] == [x + 1, y + 1]
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Curses.addch '_'
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elsif field.field[[x, y]].open
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Curses.addch field.field[[x, y]].mine ? '*' : ' '
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else
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Curses.addch 'H'
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end
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end
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end
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Curses.refresh
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end
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Curses.init_screen
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Curses.cbreak
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Curses.noecho
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Curses.stdscr.keypad = true
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at_exit do
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Curses.close_screen
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end
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finished = false
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display_curses( field )
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loop do
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direction = ''
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ch = Curses.getch
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if finished
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begin
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case ch
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when 'r'
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field = MyHunt::Board.new
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finished = false
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else
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break
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end
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rescue Curses::RequestDeniedError
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'prout'
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end
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else
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begin
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case ch
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when '1'
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direction = 'down-left'
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when '2', Curses::KEY_DOWN
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direction = 'down'
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when '3'
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direction = 'down-right'
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when '4', Curses::KEY_LEFT
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direction = 'left'
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when '6', Curses::KEY_RIGHT
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direction = 'right'
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when '7'
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direction = 'up-left'
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when '8', Curses::KEY_UP
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direction = 'up'
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when '9'
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direction = 'up-right'
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when 'q'
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break
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end
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rescue Curses::RequestDeniedError
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'prout'
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end
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end
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state = field.move( direction )
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finished = state[:dead] || state[:victory]
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display_curses( field, state )
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end
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