139 lines
2.4 KiB
Ruby
139 lines
2.4 KiB
Ruby
class Game
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attr_reader :live_cells, :tick_count
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def initialize(live_cells)
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@tick_count = 0
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@live_cells = live_cells # Arr[ [x,y] ]
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end
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def tick(args=nil)
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calculate_next_gen
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render(args)
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@tick_count += 1
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end
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private
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attr_writer :live_cells, :tick_count
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def calculate_next_gen
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next_gen_living_cells = []
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live_cell_map = convert_cells_to_map
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cells_to_check = calculate_cells_to_check
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cells_to_check.each do |x,y|
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is_next_gen_living = check_cell(x,y,live_cell_map)
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next_gen_living_cells << [x,y] if is_next_gen_living
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end
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@live_cells = next_gen_living_cells
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end
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def check_cell(x,y,live_cell_map)
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adjacent_living_cell_count = adjacent_living_cell_count(x,y,live_cell_map)
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return true if adjacent_living_cell_count == 3
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return true if adjacent_living_cell_count == 2 && is_living_cell?(x,y,live_cell_map)
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return false
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end
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def is_living_cell?(x,y,live_cell_map)
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live_cell_map.dig(x)&.dig(y) == true
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end
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def convert_cells_to_map
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map = {}
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live_cells.each do |x,y|
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map[x] ||= {}
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map[x][y] = true
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end
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map
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end
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def calculate_cells_to_check
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cells_to_check = live_cells.dup
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live_cells.each do |x,y|
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cells_to_check += adjacent_cell_coordinates(x,y)
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end
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cells_to_check.uniq
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end
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def adjacent_cell_coordinates(x,y)
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adjacent_cells = []
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-1.upto(1).each do |i|
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-1.upto(1).each do |j|
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adjacent_cells << [x+i,y+j]
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end
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end
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adjacent_cells -= [[x,y]]
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adjacent_cells
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end
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def adjacent_living_cell_count(x,y,live_cell_map)
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map = live_cell_map
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count = 0
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-1.upto(1).each do |i|
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-1.upto(1).each do |j|
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next if i==0 && j==0
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count += 1 if map.dig(x+i)&.dig(y+j)
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end
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end
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count
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end
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def render(args)
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# print_console
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end
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def print_console
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puts "--- Round #{tick_count} ---"
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max_x = live_cells.map{|x,y| x}.max + 5
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max_y = live_cells.map{|x,y| y}.max + 5
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max_y.times do |y|
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max_x.times do |x|
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if live_cells.include? [x,y]
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print "*"
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else
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print "."
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end
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end
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print "\n"
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end
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end
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end
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# console test
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# INPUT = [
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# [9,9],
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# [10,10],
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# [9,11],
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# [11,11],
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# [9,12],
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# [11,12],
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# [13,13],
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# [14,13],
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# [15,13],
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# [16,13],
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# [16,15],
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# [16,16],
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# [17,17],
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# ]
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# game = Game.new(INPUT)
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# 100.times do |i|
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# game.tick
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# sleep 0.2
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# end |