Editing Tutorials

This hopefully growing collection of basic tutorials will help to build farms and build projects in VoxeLibre. Some tutorials were developed in a development environment with minimal changes in the code, e.g. by making the zombies slightly taller.

===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 comnplexer 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, zombies can spawn in the 2-block box with added trapdoor on the ceiling. For the projects shown here, the collisionbox of zombies was slightly changed into {-0.3, -0.01, -0.3, 0.3, 1.89, 0.3}