110 lines
2.6 KiB
Ruby
Executable file
110 lines
2.6 KiB
Ruby
Executable file
#!/usr/bin/env ruby
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# frozen_string_literal: true
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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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