Files
OpenRA/lua/scriptwrapper.lua

53 lines
1.4 KiB
Lua

--[[
Copyright 2007-2019 The OpenRA Developers (see AUTHORS)
This file is part of OpenRA, which is free software. It is made
available to you under the terms of the GNU General Public License
as published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version. For more
information, see COPYING.
]]
environment = {}
-- Reset package path
package.path = GameDir .. "/lua/?.lua"
-- Note: sandbox has been customized to remove math.random
local sandbox = require('sandbox')
local stp = require('stacktraceplus')
local PrintStackTrace = function(msg)
return stp.stacktrace("", 2) .. "\nError message\n===============\n" .. msg .. "\n==============="
end
local TryRunSandboxed = function(fn)
local success, err = xpcall(function() sandbox.run(fn, {env = environment, quota = MaxUserScriptInstructions}) end, PrintStackTrace)
if not success then
FatalError(err)
end
end
WorldLoaded = function()
if environment.WorldLoaded ~= nil then
TryRunSandboxed(environment.WorldLoaded)
end
end
Tick = function()
if environment.Tick ~= nil then
TryRunSandboxed(environment.Tick)
end
end
ExecuteSandboxedScript = function(file, contents)
local script, err = loadstring(contents, file)
if (script == nil) then
FatalError("Error parsing " .. file .. ". Reason: " .. err)
else
TryRunSandboxed(script)
end
end
RegisterSandboxedGlobal = function(key, value)
environment[key] = value
end