80 lines
1.7 KiB
Lua
80 lines
1.7 KiB
Lua
local y = 135
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local minx, maxx, minz, maxz = 2514, 2544, -1488, -1518
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local w, h = maxx - minx, maxz - minz
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local dead, alive = {"minecraft:concrete", 3}, {"minecraft:concrete", 0}
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local function make_board()
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local board = {}
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for x = 0, w do
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board[x] = {}
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for z = 0, h do
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local pick = false
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if math.random() < 0.5 then pick = true end
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board[x][z] = pick
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end
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end
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return board
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end
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local function wrap(n, max)
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return n % max
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end
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local function get_neighbours(board, x, y, w, h)
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local total = 0
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for dx = -1, 1 do
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for dy = -1, 1 do
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if not (dx == 0 and dy == 0) then
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local thing = 0
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if board[wrap(x + dx, w)][wrap(y + dy, h)] then thing = 1 end
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total = total + thing
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end
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end
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end
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return total
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end
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local function setblock(x, y, z, state)
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local b
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if state then b = alive else b = dead end
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commands.execAsync(string.format("setblock %d %d %d %s %d", x, y, z, b[1], b[2]))
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end
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local function update(board, new_board)
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for x = 0, w do
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for y = 0, h do
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local alive_now = board[x][y]
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local alive_next
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local neighbours = get_neighbours(board, x, y, w, h)
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if alive_now then
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alive_next = neighbours == 2 or neighbours == 3
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else
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alive_next = neighbours == 3
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end
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new_board[x][y] = alive_next
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end
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end
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return new_board
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end
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local function draw(board)
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for x = 0, w do
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for z = 0, h do
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setblock(x + minx, y, z + minz, board[x][z])
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end
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end
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end
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local b1, b2 = make_board(), make_board()
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local gens = 0
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while true do
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draw(b1)
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update(b1, b2)
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b1, b2 = b2, b1
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gens = gens + 1
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if gens % 100 == 0 then b1 = make_board() end
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sleep(1)
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end |