"Valid housing" - does this work?
OK just before I start, I do know what does and doesn't constitute valid housing in Terraria. I'm also playing v1.2.4.1
What I'd like to know is does the "must have a door" requirement also mean "must be accessible", or can I create a walled-off cube with internal doors to satisfy the housing rules? i.e. are any of the houses A, B, C or D in the following diagram valid?
If I can, then I'm going to be making pressure-plate/activator automatic doors that don't get torn down in a blood moon.
Best Answer
The structure does not have to be "accessible" with a door; as in you can create a switched active block entry way so that Blood Moon/Eclipse mobs can't get in. You can also create a double door entry way, where the outer door is the switched active blocks.
Another way, would be to place a platform, container or decoration against the door. This creates an "open from the inside only" door, that can't be opened inwards (the direction most mobs are headed to get inside your house). The exception to this is goblin armies, as they break the door instead of opening it. The "issue" is that YOU also can not open the door inwardly. You would have to face out and click to open the door.
In your diagram, the C/D version where there is a switched "ceiling" between the doors is a good way to do it.
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Answer 2
I would say these are all valid if the requirements fit.
But you need to remember that the need to teleport into there houses wich means that you have to leave the place.
Second you need to think about monsters spawning in your house eg. Goblin Army.
third how will you talk with those npcs ?
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