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Diffstat (limited to 'misc/run.lua')
| -rw-r--r-- | misc/run.lua | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/misc/run.lua b/misc/run.lua new file mode 100644 index 0000000..0fcc030 --- /dev/null +++ b/misc/run.lua @@ -0,0 +1,140 @@ +-- +-------------------------------------------------------------------------------- +-- FILE: run.lua +-- USAGE: texlua run.lua +-- DESCRIPTION: Game of Life CLI frontend +-- REQUIREMENTS: texlua or similar interpreter +-- BUGS: dozens, if lucky +-- AUTHOR: Philipp Gesang (Phg), <megas.kapaneus@gmail.com> +-- VERSION: 1.0 +-- CREATED: 05/08/10 13:09:52 CEST +-------------------------------------------------------------------------------- +-- + +-- check for a capable interpreter +if not (arg[-1] == "texlua" or + context ~= nil) then + print ([[ + +··············································································· +Please use the LuaTeX interpreter or modify the sources to fit your +Lua machine of choice! +GOTO http://www.luatex.org/ +··············································································· +]]) + return 1 +end + +require "life" + +local C, Cs, Ct, P, R, S, match = lpeg.C, lpeg.Cs, lpeg.Ct, lpeg.P, lpeg.R, lpeg.S, lpeg.match + +local help = gol.helpers + +debug = 1 + +function get_args () + gol.arg = arg + if gol.arg[-1] == "texlua" then + gol.machine = gol.arg[-1] + gol.self_name = gol.arg[0] + gol.arg[-1], gol.arg[0] = nil, nil + elseif context ~= nil then + -- TODO + end + + local kv_args = function () + local tmp = {} + local so = help.split_once + for _, a in ipairs(gol.arg) do + local lr = so(a, "=") + tmp[help.strip(lr[1], "-")] = lr[2] + end + return tmp + end + + return kv_args() +end + +function life (current) + -- how many frames should we draw? + current.n = current.kv_args.n or 40 + + -- sustaining dead cells + current.sustain = current.kv_args.sustain or 0 -- TODO + current.fadeout = current.kv_args.fadeout or false + + -- check for debug flag + if tonumber(current.kv_args.debug) == 0 then + debug = false + else + debug = current.kv_args.debug or debug + end + + + -- prepare the rule + if current.kv_args.rule then + current.rule = gol.parse_rule (current.kv_args.rule) + else + current.rule = gol.parse_rule ("B3/S23") -- Conway's rule + end + + if debug then for n, a in pairs(current.kv_args) do print(n, a) end end + if debug then for i, j in pairs(current.rule) do print(i, #j) end end + + -- read the initial state (get an array of strings) + if current.file then + current.init = gol.parse_file (current.file) + else + return 1 + end + + if current.init then + if debug then + gol.pre_frame(current.init) + end + local many = gol.frames( current.init, current.rule, current.n ) + gol.pre_movie (many, true) + else + io.write"\nCheck your input file for consistency, please.\n" + return 1 + end + return 0 +end + +function eca(current) + local eca = require "eca" + -- how many lines to draw + current.n = tonumber(current.kv_args.n) or 30 + current.aspect = tonumber(current.kv_args.aspect) or 3/4 + current.rule = eca.gen_rule(tonumber(current.kv_args.rule) or 110) + current.from = eca.parse_file(current.kv_args.file) + current.framesize = math.floor(current.aspect * current.from:len()) + + for n=1,current.n,1 do + gol.pre_section(current.from:len(), n) + eca.successive(current) + end + return 0 +end + +function main () + local current = {} + current.kv_args = get_args() + current.file = current.kv_args.file or "10x10_glider.gol" + + local p_suf = P"." * (1-P".")^3 * -P(1) + local p_fn = (1-p_suf)^1 * C(p_suf) + local suffix = p_fn:match(current.file) or ".gol" -- assume .gol format as default + + if suffix == ".eca" then + return eca(current) + else + return life(current) + end +end + +if not context then + return main() +end + |