if object collodes with nothing , <how ?>

Hi & i was wondering how can
"if box collodes with nothing " sensor is achieved ?
ok , if we lift it blank , then it is
"if box collodes with anything "
~ oops , solved it , silly me , use the INV button :o .
ok another question :eyebrowlift2: , what would be the most powerfull non-buggy way to make it like this
" if box collodes with nothing for 0.5 second " , i thought of a way , but it’s buggy :spin: …

lol you ask to much ;p
by the time you ask you already know the answers ;]

Use a timer property. Hook up a property sensor to the same controller as the collision sensor. I guess…

Use a timer property. Hook up a property sensor to the same controller as the collision sensor. I guess…

thought of this way and it was kind of buggy and … i’m working on a python alternative :eyebrowlift: .

lol you ask to much ;p
by the time you ask you already know the answers ;]

lol …

Yeah, that’s probably a good idea. I keep running into problems with properties. Good luck!