Changes

As previously mentioned, we can use <code>Codec.INT</code> for the integer codec, and <code>Registry.ITEM</code> for the Item codec. We don't have a builtin codec for list-of-blockpos, but we can use BlockPos.CODEC to create one.

As previously mentioned, we can use <code>Codec.INT</code> for the integer codec, and <code>Registry.ITEM</code> for the Item codec. We don't have a builtin codec for list-of-blockpos, but we can use BlockPos.CODEC to create one.

== Lists ==

==Lists==

The <code>Codec#listOf</code> instance method can be used to generate a codec for a List from an existing codec:

The <code>Codec#listOf</code> instance method can be used to generate a codec for a List from an existing codec:

<syntaxhighlight lang="java">

<syntaxhighlight lang="java">

// BlockPos.CODEC is a Codec<BlockPos>

// BlockPos.CODEC is a Codec<BlockPos>

Codec<List<BlockPos>> = BlockPos.CODEC.listOf();

Codec<List<BlockPos>> blockPosListCodec = BlockPos.CODEC.listOf();

</syntaxhighlight>

</syntaxhighlight>