Making passage open in 2 steps. (Mapping for Doom 2)

[ViolentBeetle]

I wanted to create a scenario where 2 different buttons need to be pressed to open a passage. The idea was that first button would half-open the door (Or half-lower the barrier) and the second would finish the job, but in practice I couldn't find a way to establish target heights properly.

[Simomarchi]

There is a workaround to your problem. 

First of all, you have to create your barrier (I've made my example using a barrier and not a door).

Then, you have to create a dumb sector outside of the playable area and join the barrier with it.

After you have joined the barrier and the dumb sector, create two others dumb sectors adjacent to the first one.

This two dumb sectors will define where your barrier will sto during its march, so be sure to set their floor height correctly. Considering x the height of the floor of the barrier, the floor of the second dumb sector has to be set at an height of x/2, and the floor of the third dumb sector has to be set at an height equal to the one of the original floor (or generally where you want your barrier to stop at the very end of the process). 

Now, give a tag to the barrier.

You have to build 2 different switches but their action has to be exactly the same. 

Give to both of your switches action 221 "S1 floor lower to nearest floor". Once a switch is pressed, the first dumb sector will lower to the level of the second one (and so will do your barrier), once the second switch is pressed the barrier will lower to the level of the third dumb sector, completing the movement.

 

Here is an example:

 

2stepbarrier.zip

Format: Boom

IWAD: Doom2

 

Note that the second switch will not work until the first one has completed its action, so you can place them as near as you want.

[ViolentBeetle]

It seems that action only exists in "Boom". Perhaps I should switch to it instead of using regular Doom 2.

[Simomarchi]

If you really want to stick to Doom2 format there is always the old two sets of separate barriers that have to be both lowered in order to obtain a passage large enough for the player to proceed. But of course this is not the same thing as your original idea

[ViolentBeetle]

Yeah, for now I settled on one switch lowering floor and the other raising the ceiling. I will probably get back to bars once I figure out how narrow they need to be.

[SilverMiner]

@ViolentBeetleYou can do it more fancy: just take a look into Plutonia 2 Map25 (the leftmost part of the map)