60 lines
1.5 KiB
Lua
60 lines
1.5 KiB
Lua
-- kit of standard functions
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-- Check if given table is an array
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function is_array(x)
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if #t > 0 then
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return true
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end
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for k, v in pairs(x) do
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return false
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end
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return true
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end
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local __cached_scripts = {}
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local __cached_results = {}
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-- Get entry-point and filename from `entry-point:filename` path
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function parse_path(path)
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local index = string.find(path, ':')
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if index == nil then
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error("invalid path syntax (':' missing)")
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end
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return string.sub(path, 1, index-1), string.sub(path, index+1, -1)
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end
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-- Load script with caching
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--
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-- path - script path `contentpack:filename`.
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-- Example `base:scripts/tests.lua`
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--
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-- nocache - ignore cached script, load anyway
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function load_script(path, nocache)
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local packname, filename = parse_path(path)
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local packpath = pack.get_folder(packname)
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local fullpath = packpath..filename
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-- __cached_scripts used in condition because cached result may be nil
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if not nocache and __cached_scripts[fullpath] ~= nil then
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return __cached_results[fullpath]
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end
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local script = loadfile(fullpath)
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if script == nil then
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error("script '"..filename.."' not found in '"..packname.."'")
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end
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local result = script()
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if not nocache then
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__cached_scripts[fullpath] = script
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__cached_results[fullpath] = result
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end
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return result
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end
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function sleep(timesec)
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local start = time.uptime()
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while time.uptime() - start < timesec do
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coroutine.yield()
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end
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end
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