This tutorial assumes you are already familiar with SDK (MOHRadient) or similar and know how to create a basic room with a light, platform etc. See (Basic room tutorial & Basic lights tutorial). It’s also assumed that you have read the documentation that was released with the Editor.

A lockable door is a door that is locked when the game starts.It can be unlocked or locked again to allow/deny access to certain areas of a map. In a SP map it can be used to keep a player from accessing an area until they, for example, complete an objective. In a TDM or OBJ map it could be used to "seal" an area so that only one side has access to it - preventing spawnkilling.

Create a room (mine is 128 x 128) with a door in it. Select the door and hit n to bring up the entity properties screen.

Click the NOT_PLAYERS and TARGETED boxes as shown in Fig 1. Give it the key/value targetname door1. Then close the entity properties screen and deselect the door.

Next add 2 brushes, one either side of the door (Fig 2) and texture them with the trigger_use texture. (Note : This could be done by just using 1 trigger use across the door but it will generate trigger_use leaks)

Select the brushes, and then hit n. Give them both the key/value of target door1. Then select each one in turn. To the inside brush give the key/value of targetname dooropenerin (Fig 3) and to the outside brush give the key/value of targetname dooropenerout.

Add another trigger_use textured brush outside the room. Using the entity properties screen, give the brush a key/value of targetname outsidelock. Also give it the key/value setthread doorlock (Fig 4).

Add another trigger_use textured brush inside the room. Using the entity properties screen, give the brush a key/value of targetname insidelock. Also give it the key/value setthread doorlock (Fig 5). (Note: Again this can be done with one trigger_use but you will get a trigger_use leak)

Then add this to your script file:

Obviously this is just the basics and can be expanded on