--Dynamic ignore distance
--by Alundaio
function set_danger_ignore_distance()
    local ret_ignore_distance = nil
    local night_vision = npc:night_vision_enabled()

    -- Check for Night
    if (level.get_time_hours() < 3 or level.get_time_hours() >  22) then
        -- Check for heavy rain
        if (level.rain_factor() >= 0.5) then
            ret_ignore_distance = {
            [danger_object.grenade]         = 10,
            [danger_object.entity_corpse]   = 35,
            [danger_object.entity_attacked] = 150,
            [danger_object.attacked]        = 150,
            [danger_object.bullet_ricochet] = 50,
            [danger_object.enemy_sound]     = 5,
            [danger_object.attack_sound]    = 35,
            [danger_object.entity_death]    = 20
            }

            return ret_ignore_distance
        -- If Night but no or little rain
        else
            -- If NPC has night_vision_enabled
            if (night_vision == false) then
                ret_ignore_distance = {
                [danger_object.grenade]         = 20,
                [danger_object.entity_corpse]   = 55,
                [danger_object.entity_attacked] = 200,
                [danger_object.attacked]        = 200,
                [danger_object.bullet_ricochet] = 75,
                [danger_object.enemy_sound]     = 10,
                [danger_object.attack_sound]    = 45,
                [danger_object.entity_death]    = 25
                }
                return ret_ignore_distance
            -- If NPC does not have night_vision_enabled
            else
                ret_ignore_distance = {
                [danger_object.grenade]         = 30,
                [danger_object.entity_corpse]   = 75,
                [danger_object.entity_attacked] = 275,
                [danger_object.attacked]        = 275,
                [danger_object.bullet_ricochet] = 75,
                [danger_object.enemy_sound]     = 25,
                [danger_object.attack_sound]    = 55,
                [danger_object.entity_death]    = 45
                }
                return ret_ignore_distance
            end
        end
    -- If Day
    else
        -- If Day and Heavy Rain
        if (level.rain_factor() >= 0.5) then
            ret_ignore_distance = {
            [danger_object.grenade]         = 10,
            [danger_object.entity_corpse]   = 45,
            [danger_object.entity_attacked] = 150,
            [danger_object.attacked]        = 150,
            [danger_object.bullet_ricochet] = 50,
            [danger_object.enemy_sound]     = 5,
            [danger_object.attack_sound]    = 35,
            [danger_object.entity_death]    = 20
            }
            return ret_ignore_distance
        -- If Day and no or little rain
        else
            ret_ignore_distance = {
            [danger_object.grenade]         = 30,
            [danger_object.entity_corpse]   = 100,
            [danger_object.entity_attacked] = 300,
            [danger_object.attacked]        = 300,
            [danger_object.bullet_ricochet] = 100,
            [danger_object.enemy_sound]     = 30,
            [danger_object.attack_sound]    = 60,
            [danger_object.entity_death]    = 50
            }
            return ret_ignore_distance
        end
    end

    --If none of the above, then set defaults
    ret_ignore_distance = {
    [danger_object.grenade]         = 30,
    [danger_object.entity_corpse]   = 100,
    [danger_object.entity_attacked] = 300,
    [danger_object.attacked]        = 300,
    [danger_object.bullet_ricochet] = 100,
    [danger_object.enemy_sound]     = 30,
    [danger_object.attack_sound]    = 60,
    [danger_object.entity_death]    = 50
    }

    return ret_ignore_distance
end