Editing Tutorials (section)

===Stalker farm===
Stalkers spawn only naturally, there are no spawner for stalkers, as other mobs (e.g. skeletons and zombies). But stalkers are the only source for gunpowder, needed to make rockets. As soon players have looted an Elytria, giving them wings to fly, they need rockets. And therefore, the need for a gunpowder farm is obvious.

Planning before start helps to avoid errors during the build of a farm. Some aspects to consider:
We want only stalkers, but ideally no zombies and no spiders. On youtube, there are a lot of tutorials for a creeper farm, mostly with the use of snowmen. But tests have shown, that we don't need snowmen in VoxeLibre. They make the build more complex but don't really add to the amount of gunpowder produced. Stalkers are quite small, so they can move within a 2-block box with additional carpet on the floor and trapdoor on the ceiling. In 0.89.1, zombies can no longer spawn in this same space, as the collisionbox of zombies was slightly changed, making them minimally taller.

This build was proposed by Nicu and verified by cyberonkel. The design is simple: four platforms build with full blocks are divided by 2 block wide water channels. On the platforms, carpets on the corners and in form of a grid, leaving 2 blocks between the carpets free avoid spider spawns. The ceiling is covered in closed trapdoors. This makes enough space for stalkers to spawn and move, but avoid the spawn of Zombies.

The water channels are 7 blocks long, water sources are hidden in the wall to avoid stalkers to sit on the water source. The water of the four channels stop in the center, building a 2x2 center hole, falling about 20 blocks deep to the kill zone, made from soul fires over hoppers, collecting the gun powder into a chest. Put signs two blocks below water level at the walls to avoid falling water into the kill zone.