World-Generation-Templates.md

+World gen templates are used to make your custom blocks spawn in a newly generated world. Custom blocks spawn in veins of a random amount of blocks. They may only spawn in a set list of biomes of worlds. Gen templates do also have more specific options that this wiki page will be overviewing.
+
+## Basic gen template example
+```
+basic-template:
+    replace: [STONE]
+    chunk-chance: 0.7
+    depth: 10=24
+    vein-size: 5
+    vein-count: 2
+```
+When a world is being generated, every chunk has a set chance to be selected in order to spawn a block (`chunk-chance`). You may also configure the depth at which your block will be placed. The `replace` option defines what vanilla blocks your custom block will replace. That means custom blocks cannot spawn midair so that custom ores can spawn inside stone walls just like vanilla ores.
+
+`vein-count` is the amount of veins that will be generated inside a selected chunk, `vein-size` is the amount of custom blocks that will be generated in every block vein.
+
+## Specific options
+Use the `slime-chunk` option so that your block may only spawn in slime chunks.
+```
+template-id:
+    slime-chunk: true
+```
+
+## Biome/World black/whitelist
+By adding an entry to the `worlds` list, you can restrict any custom block to a specific set of worlds. If you use `!` before the world name, the world whitelist will turn into a blacklist, and the custom block will spawn anywhere but in the specified worlds.
+```
+template-id:
+    worlds:
+    - world_nether # Just like nether quartz
+```
+
+The format is the same for biomes, just use `biomes` instead of `worlds` and input the biomes names ([[spigot docs|https://hub.spigotmc.org/javadocs/spigot/org/bukkit/block/Biome.html]]).
+```
+template-id:
+    biomes:
+    - moutains # Just like emerald
+```
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