Machine Invisibility - Machine Tactile Invisibility

[Scott]

heroiccthulhu.proboards.com/thread/4541/tech-magic-machine-invisibility

Machine Tactile Invisibility
Range: 2m
Casting Time: 1 Round
MP Cost: 2
Duration: 1 hour

The creature or object (up to a 3m cube) touched cannot be detected by machines, electronic sensors, or other high-tech detection devices that use a sense of touch or pressure sensors. The creature/object is also tactilely invisible to mechanical construct type creatures. If the recipient is a creature carrying gear, the gear is likewise undetectable. Items dropped or put down by an affected creature become touch/pressure detectable to machine sensors. Any part of an item that the subject carries but that extends more than 3m from it becomes detectable, such as a trailing rope.The creature or object touched can stand on a scale and doesn’t appear to weigh anything.

While machine "invisibility" is useful for many tasks requiring stealth, it sometimes makes the subject’s life more difficult. A stoplight sensor under an intersection will not pick up a motorcycle with machine invisibility. Touch screens ignore you.

[logan9a]

Awaiting more player's input...

[PotatoJedi]

I'm having a hard time wrapping my head around this one.

Let's say there is an electronic pressure plate and you step on it while this spell is active on you. Despite your weight clearly pressing down on it, the trigger doesn't activate because magic? Or if a blind robot touches you, it doesn't feel anything? it just feels some weird resistance that it can't explain?

What if you stepped over a trip wire which activates defence lasers to disintegrate you? The trip wire snaps but nothing else happens? What happens when you move out of the range of the trip wire after it's been snapped – do the lasers activate then or no?

[Scott]

[quote author="PotatoJedi" source="/post/34884/thread" timestamp="1549027286"Let's say there is an electronic pressure plate and you step on it while this spell is active on you. Despite your weight clearly pressing down on it, the trigger doesn't activate because magic? Or if a blind robot touches you, it doesn't feel anything? it just feels some weird resistance that it can't explain?[/quote]

Pretty much. You're pressing the button, but nothing is happening. The robot example isn't wrong, but the more likely situation is the robot not feeling the caster touch it.

Feb 1, 2019 13:21:26 GMT PotatoJedi said:

What if you stepped over a trip wire which activates defence lasers to disintegrate you? The trip wire snaps but nothing else happens? What happens when you move out of the range of the trip wire after it's been snapped – do the lasers activate then or no?

Good question. A trip wire is tricky since it is a primitive tech thing that can be incorporated into a high tech system in so many ways. I'm thinking that unless a machine is directly monitoring pressure/tension on the wire, then it would get picked up as "interacting with the environment", similar to hearing the door slam with Machine Audio Invisibility. (E.g., this is the difference between a sensor measuring pressure on the wire directly vs pressure on the wire pulling out a physical plug in the wall, which in turn unbreaks a light beam sensor that triggers the lasers