Skeetendo

To put it simply, you'll need to make a;
1) Signpost event for the door for making it possible to open it (and make the event have Function byte 06 so that you can't "talk" to the door once it's already opened).

From the compendium:

Signposts:

[Y position][X position][Function][Script pointer (2byte)]

■ Function: 

06 = If bit of BitTable1 is not set then pointer is interpreted
Script pointer to [Bit-Nr. (2byte)][2byte pointer to script]

2) Make a script that is called from the map header which checks whether or not the door was opened some time before (with that Bit Number attached to the signpost event). If it was, replace the "closed door" block with "opened door" block.

Last edited by Miksy91 (2014-05-20 12:39:01)