Скриптование

[zaza10 0]

в зове припяти вставляю в bind_stalker.script такой код:

if true then
    local hud = get_hud()
    local custom_static = hud:GetCustomStatic("cs_debug" )
    if custom_static == nil then
        hud:AddCustomStatic("cs_debug", true)
        custom_static = hud:GetCustomStatic("cs_debug" )
    end
    local lvid, gvid = db.actor:level_vertex_id(), db.actor:game_vertex_id()
    local pos, dir = db.actor: position(), db.actor:direction()
    local pos2 = level.vertex_position(lvid)
    local valid = pos2:distance_to(pos) <= 0.7
    local msg = string.format("lvid: %d\\n", lvid) ..
                string.format("gvid: %d\\n", gvid) ..
                string.format("pos: %f,%f,%f\\n", pos.x, pos.y, pos.z) ..
                string.format("dir: %f,%f,%f\\n", dir.x, dir.y, dir.z) ..
                string.format("valid: %s", tostring(valid))
           if custom_static = nil then
        custom_static:wnd():SetText(msg)
    end
end

при загрузке вылет:

Expression    : !m_error_code
Function      : raii_guard::~raii_guard
File          : D:\prog_repository\sources\trunk\xrServerEntities\script_storage.cpp
Line          : 748
Description   : ...рипяти\gamedata\scripts\smart_terrain_control.script:65: attempt to index field 'actor' (a nil value)

 

что делать?