Talk:Monsters open locked doors

Why is this a bug? I suppose it could be a mapping error. Presumably the linedef type for the rear of the door is a normal "open me". So, the monster tries to open it, to get towards the player... and it opens! That is what I would expect. Am I mis-interpreting this? If not, it might be a good idea to cite and wikilink some levels where this happens. -- Jdowland 21:10, 3 Jan 2006 (UTC)


 * Definitely sounds like mapping errors to me. -- TheDarkArchon 22:22, 3 Jan 2006 (UTC)


 * It appears to be a rather common misconception that monsters can open locked doors due to a bug in the engine. Perhaps the article should reflect this fact. 81.231.137.101 22:34, 3 Jan 2006 (UTC)


 * Done -- TheDarkArchon 11:43, 4 Jan 2006 (UTC)


 * It's not a misconception, the bug really exists. See this wad. Janizdreg 11:37, 22 January 2006 (UTC)


 * All I can see is that the door in the wad is not locked on the other side. Fredrik 12:34, 22 January 2006 (UTC)


 * A map author could want it to be that way, say to create an area you can get into but can't get out of (without a key), which is why I wouldn't call this a mapping error. Janizdreg 15:03, 22 January 2006 (UTC)


 * If the demon's radius is such that it is overlapping the door sector, it is a mapping bug. I haven't been able to determine this via doom builder. What's the purpose of the sector that the demon is inside, btw? -- Jdowland 15:13, 22 January 2006 (UTC)


 * The demon's radius isn't overlapping the door. Monsters can also open locked doors by walking to them, not only by starting inside them. If you want to see this in practice, try this wad (in the map you just need to fire a weapon to alert a demon in the next room and wait for the demon to open the door).


 * And to answer your question, the 3 linedefs around the demon are monster blocking and are there simply to prevent it from moving around in the room. Janizdreg 18:58, 23 January 2006 (UTC)


 * Hmm weird. How does that demon open it up - is the thing clipping over the edge of the door sector? -- Jdowland 14:20, 22 January 2006 (UTC)


 * Probably. It seems that the monsters' clipping is pretty rough at times, especially if the monster is fast (increasing a monster's speed seems to improve its ability to open these half-locked doors, or in other words, the faster a monster is, the thicker half-locked doors it can open). Janizdreg 18:58, 23 January 2006 (UTC)

Only one one-way lock in commercial IWADs?
Correct me if I'm wrong, but I thought I saw another of these in E2M6: Halls of the Damned. Yellow key room.