Right, so I'm attempting to build an iron farm in my survival world. I started by building the villager pen right next to a normally generated, then I stuck a door on it, and then went around smashing all the doors of the village. Because villagers naturally want to be indoors, they all rushed to the only valid house around; the pen. I then removed the door, and closed them in. After that, I build the rest of the Iron farm, being sure to place the doors last, so that I wouldn't get the villagers breeding, and get golems in the farm before it was ready. The problem is, now that the structure is complete, and ready to go, all the doors in place, the villagers aren't breeding. I'm playing in 1.7.2 (due to an issue with my graphics card, I can't play any versions above that), so I know it's not the recent snapshot changes that prevent the breeding... so what seems to be the problem?
I used an iron golem farm design by Nims, using only one villager pen, and 40 doors. Theoretically, that should make 14 villagers... but I have 3. Now, the hearts do appear over their heads from time to time, but nothing really happens. Are their some other requirements I'm not meeting, other than the doors and the trading?
Any wooden door that is to be classed as part of the village must be within 16 blocks of a villager to be registered. This can be a problem if the villagers are all in one place due to their bugged AI (especially at night) and can't "see" some of the doors. Also a valid door cant be too high or low from the villager floor level (or village centre, can't remember). probably need some screenshots showing the layout of the farm and the area it covers.
You say its the Nims one, is that the two 10 x 10 spawning pads on top of each other one? If it is, I dont think the 16 blocks thing will be the issue as that design is pretty compact. The one I built in my world was based on the Nims one with two 10 x 10 pads and it works OK (although mine is modified/enlarged quite a bit design wise). In my design, the villagers had an open area to move about in but they kept congregating in one corner which buggered things up with the door registering/village centre; in the end i trapped several of them in another area to make things equal, now there are two areas, the original area where the villagers mill about seeming normally, the other "new" area where the villagers spend all day standing against one side of the area seemingly trying to get out and go back to the original area. Whats interesting is that when i've killed off some villagers i don't want, the villagers on the original area seem to breed much easier than the new area (both areas show hearts), and I don't know why ... I'd just give a bit more time and see if they do breed ...
Right, so I left it running overnight, to see if that helped any, and when I came back this morning, I had five (from my original three). So at this point I'm thinking I am just being impatient... though, twelve hours for two villagers is ridiculously slow, so something may still be wrong. To answer some questions, the farm is built on the surface, directly next to the original village I took the villagers from to begin with, and the villager pen has a glass ceiling (with glowstone accents, if that matters), so lighting/sunlight shouldn't be an issue. And yeah, the design I am using is compact, even with my fairly large villager pen (4x4 space for the villagers to hop around in), the most they get from the far wall of doors is still 15 blocks max. Now they are two blocks below the level with the doors... but I don't think two blocks is that big of a height difference, so I doubt that's it.
This is the farm itself, pretty compact. Not very pretty though, made entirely out of dirt. I still need to dig a little trench around it too, to keep golems spawning on the outside of the spawn pads, but if I can't get any villagers that won't matter anyway.
And here we see the original village. I know that in a lot of iron farms, building too close to a village can be a problem, as the game merges them and iron golems spawn all over the place, instead of in the trap. But I seriously doubt that's the issue in this case. It might effect my trap, but it shouldn't effect my breeding. And, I went through and busted all the doors in the village, so it's just an empty husk at this point anyway. It really shouldn't be an issue. Now, like I said at the top of this post, I did get new villagers when I left it overnight, so I might just be impatient. I still feel like something might be wrong, for them to be taking so long, but then again, once I hit ten, it doesn't really matter how slowly they breed. So worst case scenario, I just leave it up for a few days and get the farm working that way.
The Meaning of Life, the Universe, and Everything.
i had the same problem, but mine was 100 blocks in the air, I found that if the chunk isnt loaded, they dont breed. This may be common knowledge but sometimes i forget.
Are you spending a lot of time away from the villagers? this may be the case for you too.
You chose Nims' version because it's more compact, yes? Or were you simply not aware of ? I say better, because I really can't think of a situation when you'd want Nims' version over the other, unless space is so tight you truly have nowhere to put the other kind. Let's look at some pro's and con's:
- More compact -- can be fit into a smaller space
- Slightly easier water placement
- Only one villager pod
...okay, seems pretty good so far, right? Now let's look at the other side...
- The water placement in the Zipkrowd version isn't that difficult, you just have to be a little smarter than your average potato.
- It's easy enough to make a second villager pod (although they use four in the video, you can actually get away with just two, on opposite sides).
- But the real kicker is, it only spawns about half as many golems as the other one, since it uses only 10x10 (less than half the total area) of the available 16x16 golem-spawning zone, while the other one uses the entire 16x16 in order to keep the spawn rates as high as they can possibly be.
I have tested this, and it is true. That's for a single cell of the Zipkrowd version, mind, not a four-cell array like docm ultimately builds in the video, versus a single cell of the Nims version. I have one of each in the spawn chunks of my test world, so they are both constantly running whenever I have the world loaded. To date, the Zipkrowd version has produced eleven stacks of iron ingots, while Nims' version has only produced seven stacks.
This is not a coincidence, it's not down to random chance. The Zipkrowd version produces more iron because it spawns more golems. It spawns more golems, because it has more places for them to spawn.
Every time the game decides to try and spawn a golem (roughly ten times per hour, on the average), it picks a random spot within the 16x16x6-high golem spawning zone. If that spot has a solid block below and at least 2x2x4-high space above it, it spawns a golem there. If it's not, it picks another spot and tries again, up to ten times in total. If it fails to find a valid spawning location after ten tries, it gives up and stops trying until the next time it "decides" to spawn a golem, some six or so minutes later. Both versions use two floors, but in the Zipkrowd's iron farm, the floors span this entire 16x16 area. In Nims' version, only the middle 10x10 is used, and the rest of the zone is obstructed by the blocks and doors which make up the farm itself.
I chose to do Nim's design for ease of build. This is my hardcore survival world, and in my experience, villagers don't last very long on their own in hardcore mode. In a single night, every door in the village could be torn down by zombies, if I happened to be close enough for the chunks to be loaded. I've found a handful of empty villages already, presumably their entire populations were wiped out while I was mining or chopping wood or something. So, my goal was to get the thing finished and get the villagers to safety as soon as humanly possible, or else be faced with not having any villagers when I need them. It's a relatively new world, and this is my first project in it, haven't been to the nether yet or anything, so splash potions of weakness and golden apples aren't really available to me yet. Incidentally, that's also the reason why my iron farm is built entirely out of dirt; it's the only thing I had readily available. Aside from wood anyway, but there's a lava blade to kill the golems with, so dirt is the better choice.
Now, I do know that the Zipkrowd version is great, and much more efficient. I have one built in my xbox 360 edition world, and it works great... though the xbox version of the game severely limits how many villagers you can have in the world, so I had to add little slots so I could still trade with the villagers, since there are no other villagers anywhere in my world. It worked out well for me there, though, and I will likely build that in this hardcore world too, once I have the resources. Just build off the existing pen. But I was just trying to get it done quickly, so I'd have a source of iron for future builds.