Hey guys, real speedy question here. How would I create a door that requires two parameters to unlock?

Here's the scenario: I have a room (D5 Door Gate) that has a locked exit (D5_Door) to a second room (D5 Entrance Corridor).
The player needs to swipe two keycards (Access Cards 1 and 2, respectively) into their respective readers (Readers 1 and 2, respectively). That then opens the door.

Now, what I have now is a script that goes like this (sorry about not posting the actual core script; I don't know how to get it from the editor):

Use (Access Card 1) on (Reader 1)
Print "You swipe the card, and a light on the machine turns green." / Switch on dummy_gate_1

Use (Access Card 2) on (Reader 2)
Print "You swipe the card, and a light on the machine turns green." / Switch on summy_gate_2

After switching on dummy_gate_1
If: Object is switched on (object: dummy_gate_1)
Then:
If: Object is switched on (object: dummy_gate_2)
Then:
Print "The door slowly rises."
Unlock exit (exit: D5_door)

The reason I used the objects dummy_gate_1 and _2 (Invisible objects) is because I don't want crafty players bypassing the key card hunt by just saying "switch on Reader 1." There's probably a way to fix that, which would be nice to know.

Also, by using the two "If" scripts in a row, I was basically trying to make an "and" gate. Is there a way to do this that works?
Cheers, guys!

Does that script you have not work? Or are you just looking for alternative ways to accomplish what you're talking about?

The way I would approach something like this would be to put a flag on each of the readers. So when you use the respective card on each reader, I would put something like this in the script:

Reader 1:

if (reader1.flag = true) {
   if (reader2.flag = true) {
      msg ("The door slowly rises.")
      UnlockExit (D5_door)
   }
}
else {
   msg ("You swipe the card, and a light on the machine turns green.")
   reader1.flag = true
}

Reader 2:

if (reader2.flag = true) {
   if (reader1.flag = true) {
      msg ("The door slowly rises.")
      UnlockExit (D5_door)
   }
}
else {
   msg ("You swipe the card, and a light on the machine turns green.")
   reader2.flag = true
}

This way it doesn't matter in which order you swipe the cards, the door will still open. If you want them to have to be swiped in a specific order, the script would be fairly easy to modify for that. Also, using this method you don't have to create invisible dummy objects.

sgreig wrote:Does that script you have not work? Or are you just looking for alternative ways to accomplish what you're talking about?

It doesn't; I swipe both readers and the script doesn't run.

sgreig wrote:The way I would approach something like this would be to put a flag on each of the readers. So when you use the respective card on each reader, I would put something like this in the script:

--snip--

This way it doesn't matter in which order you swipe the cards, the door will still open. If you want them to have to be swiped in a specific order, the script would be fairly easy to modify for that. Also, using this method you don't have to create invisible dummy objects.

Oh, nice, I'll try that once I get home from school. I kinda thought that my method of using two "If:"s in a row to create an "and" gate screwed up the code. Guess not. Cheers, mate!

You can do it with "and" but then you have to type the scriptexpression:

Pertex wrote:You can do it with "and" but then you have to type the scriptexpression:
if.jpg

Or in the case of my code example, I guess it would be:

if (reader1.flag = true) and (reader2.flag = true) {
  msg ("The door slowly slides open.")
  UnlockExit (D5_door)
}
else {
  reader1.flag = true
}

and the same for reader 2, but change the else part to "reader2.flag = true". Pertex's suggestion will work as well, but it still requires you to use the two invisible dummy objects, which is really not necessary.

Alrighty! I'm back from trying pretty much everything ever. What I ended up with was (non-standard code because I still can't figure out how to get that code that you guys have, short of writing it manually) :

If: object has flag | object | reader1 | flag name | true
then:
     If: object has flag | object | reader2 | flag name | true
     then:
     Print: message | The door slowly rises.
     Unlock exit | exit | D5_door
Else:
Print: message | A light on the machine turns green.
Set flag | object | reader1 | flag name | true

And pretty much the same thing for Reader 2. After swiping the respective cards, I got two consecutive "A light on the machine turns green." messages, but nothing happened. Then I realized that I had to swipe a card on it's reader once more so that it would preform the check to see if both objects have a flag again.
I'm gonna cheat my way out of this by adding a button to press when both readers are active that runs the check. So consider my problem effectively solved! Thanks, both of you!