gistfile1.lua

function getRayEntranceAndExit(pos, dir, distance)
	local ignore = deepcopy(_G.ignorelist)
	local Ray1 = Ray.new(pos, dir.unit*distance)
	local obj, enter, enterface = workspace:FindPartOnRayWithIgnoreList(Ray1, _G.ignorelist)
	if obj ~= nil then
		table.insert(ignore, obj)
	end
	local Ray2 = Ray.new(enter, dir.unit*distance)
	local _, hpos2 = workspace:FindPartOnRayWithIgnoreList(Ray2, ignore)
	local Ray3 = Ray.new(hpos2, CFrame.new(hpos2, enter).lookVector.unit*distance)
	local _, exit, exitface = workspace:FindPartOnRayWithIgnoreList(Ray3, _G.ignorelist)
	return obj, enter, exit, vectorToFace(obj, enterface), vectorToFace(obj, exitface)
end

function deepcopy(orig)
local orig_type = type(orig)
local copy
if orig_type == 'table' then
copy = {}
for orig_key, orig_value in next, orig, nil do
copy[deepcopy(orig_key)] = deepcopy(orig_value)
end
setmetatable(copy, deepcopy(getmetatable(orig)))
else -- number, string, boolean, etc
copy = orig
end
return copy
end