paint_save.lua

local io = require("io")
local serialization = require("serialization")
local EU = require("ExtraUtilits")
local fs =  require("filesystem")

local field, w, h, path = table.unpack({...})

local file = io.open(path, "wb")

file:write(serialization.serialize({w = w, h = h}) .. "\n")

for i = 1, w do

  for j = 1, h do

    if field[i][j].symbol then

      local background = {EU.Color.Extract(field[i][j].background)}
      local foreground = {EU.Color.Extract(field[i][j].foreground)}
      local symbol = field[i][j].symbol

      local back = string.char(background[1]) .. string.char(background[2]) .. string.char(background[3])
      local fore = string.char(foreground[1]) .. string.char(foreground[2]) .. string.char(foreground[3])

      file:write(back .. fore .. symbol .. "\n")

    else

      file:write("-\n")

    end

  end

end

file:close()