我正在使用 Gosu 在 Ruby 中创建生命游戏。我的代码如下。现在，当我运行“ruby gosu.rb”时，它会打开具有适当尺寸和预填充世界的窗口。
但是一旦我取消注释'@game.tick！' 在 gosu 文件更新操作中，运行“ruby gosu.rb”后，我得到黑屏，没有预填充的世界，我无法关闭。为什么会这样以及如何解决这个问题？
您可以在此处找到包含其余代码的 github 存储库。任何帮助都很棒。
这是我的 game_of_life.rb
class Game
attr_accessor :world
def initialize(world=World.new, seeds=[])
@world = world
seeds.each do |seed|
world.cell_board[seed[0]][seed[1]].alive = true
end
end
def tick!
next_round_live_cells = []
next_round_dead_cells = []
world.cells.each do |cell|
# Rule 1:
# Any live cell with fewer than two live neighbours dies
if cell.alive? && world.live_neighbours_around_cell(cell).count < 2
next_round_dead_cells << cell
end
# Rule 2:
# Any live cell with two or three live neighbours lives on to the next generation
if cell.alive? && world.live_neighbours_around_cell(cell).count == (2 || 3)
next_round_live_cells << cell
end
# Rule 3:
# Any live cell with more than three live neighbours dies
if cell.alive? && world.live_neighbours_around_cell(cell).count > 3
next_round_dead_cells << cell
end
# Rule 4:
# Any dead cell with exactly three live neighbours becomes a live cell
if cell.dead? && world.live_neighbours_around_cell(cell).count == 3
next_round_live_cells << cell
end
end
next_round_live_cells.each do |cell|
cell.revive!
end
next_round_dead_cells.each do |cell|
cell.die!
end
end
end
class World
attr_accessor :rows, :cols, :cell_board, :cells
# Scheme of default initialized world matrix
#------------------------
# 0 1 2
# 0 [ dead, dead, dead ]
# 1 [ dead, alive, dead ]
# 2 [ dead, dead, dead ]
#-----------------------
def initialize(rows=3, cols=3)
@rows = rows
@cols = cols
@cells = []
@cell_board = Array.new(rows) do |row|
Array.new(cols) do |col|
Cell.new(col, row) # note col is 1st, than is row
end
end
cell_board.each do |row|
row.each do |element|
if element.is_a?(Cell)
cells << element
end
end
end
end
def live_cells
cells.select { |cell| cell.alive }
end
def dead_cells
cells.select { |cell| cell.alive == false }
end
def live_neighbours_around_cell(cell)
live_neighbours = []
live_cells.each do |live_cell|
# Neighbour to the North
if live_cell.x == cell.x - 1 && live_cell.y == cell.y
live_neighbours << live_cell
end
# Neighbour to the North-East
if live_cell.x == cell.x - 1 && live_cell.y == cell.y + 1
live_neighbours << live_cell
end
# Neighbour to the East
if live_cell.x == cell.x && live_cell.y == cell.y + 1
live_neighbours << live_cell
end
# Neighbour to the South-East
if live_cell.x == cell.x + 1 && live_cell.y == cell.y + 1
live_neighbours << live_cell
end
# Neighbour to the South
if live_cell.x == cell.x + 1 && live_cell.y == cell.y
live_neighbours << live_cell
end
# Neighbour to the South-West
if live_cell.x == cell.x + 1 && live_cell.y == cell.y - 1
live_neighbours << live_cell
end
# Neighbour to the West
if live_cell.x == cell.x && live_cell.y == cell.y - 1
live_neighbours << live_cell
end
# Neighbour to the North-West
if live_cell.x == cell.x - 1 && live_cell.y == cell.y - 1
live_neighbours << live_cell
end
end
live_neighbours
end
def randomly_populate
cells.each do |cell|
cell.alive = [true, false].sample
end
end
end
class Cell
attr_accessor :x, :y, :alive #, :height, :width
def initialize(x=0, y=0)
@x = x
@y = y
@alive = false
# Gosu
# @height = height
# @width = width
end
def alive?
alive
end
def dead?
!alive
end
def die!
@alive = false
end
def revive!
@alive = true # same as > self.alive = true
end
end
这是我的gosu代码
require 'gosu'
require_relative 'gol.rb'
class GameOfLifeWindow < Gosu::Window
def initialize(height=800, width=600)
# Basics
@height = height
@width = width
super height, width, false, 500
self.caption = 'My Game of Life'
# Colors
@white = Gosu::Color.new(0xffededed)
@black = Gosu::Color.new(0xff121212)
# Game world
@rows = height/10
@cols = width/10
world = World.new(@cols, @rows)
@game = Game.new(world)
@row_height = height/@rows
@col_width = width/@cols
@game.world.randomly_populate
@generation = 0
end
def update
# unless @game.world.live_cells.count == 0
# @game.tick!
@generation += 1
# end
end
def draw
@game.world.cells.each do |cell|
if cell.alive?
draw_quad(cell.x * @col_width, cell.y * @row_height, @black,
cell.x * @col_width + @col_width, cell.y * @row_height, @black,
cell.x * @col_width + @col_width, cell.y * @row_height + @row_height, @black,
cell.x * @col_width, cell.y * @row_height + @row_height, @black)
end
end
end
def button_down(id)
case id
when Gosu::KbSpace
@game.world.randomly_populate
when Gosu::KbEscape
close
end
end
def draw_background
draw_quad(0, 0, @white,
width, 0, @white,
width, height, @white,
0, height, @white)
end
end
window = GameOfLifeWindow.new
window.show