Tutorial - Adding the block to the world generation

In this part we're going to add our platinum ore to the world generation.
Create a file in the worldGeneration directory and name it platinumOre.js. Add the following contents to it:

blockId = config.getBlockId("platinumOre");
minHeight = 0;
maxHeight = 32;
generationsPerChunk = 10.0;
numberOfBlocks = 8;

generationsPerChunk: The world generator generates ten veines per chunk.
numberOfBlocks: The world generator generates eight blocks per vein.

Now add the following line to the mod.js file right below mod.addBlock:

mod.addWorldGen("platinumOre.js", "ore");

That's it. Notice that the block is only generated in new worlds or not already generated parts of an existing world.
Continue with: Creating an item