Changes

#* This will contain all of the data about your modification and allows data packs to tweak your effect.

#* This will contain all of the data about your modification and allows data packs to tweak your effect.

# A class that extends <code>LootModifier</code>

# A class that extends <code>LootModifier</code>

#* The operational code that makes your modifier work and associated serializer.

#* The operational code that makes your modifier work and associated codec.

Finally, the serializer for your operational class is [[Registration|registered]] as any other registry object.

Finally, the codec for your operational class is [[Registration|registered]] as any other registry object.

==The global_loot_modifiers.json==

==The global_loot_modifiers.json==

== The LootModifier Subclass ==

== The LootModifier Subclass ==

You will also need a static child class that extends <code>GlobalLootModifierSerializer<T></code> where <code>T</code> is your LootModifier subclass in order to deserialize your json data file into operational code.

You will also need a <code>Codec<T></code> where <code>T</code> is your LootModifier subclass in order to deserialize your json data file into operational code. The codec must be [[Registration|registered]].

<syntaxhighlight lang="java">

<syntaxhighlight lang="java">

     *

     *

     */

     */

private static class WheatSeedsConverterModifier extends LootModifier

private static class WheatSeedsConverterModifier extends LootModifier

{

{

         public static final Supplier<Codec<WheatSeedsConverterModifier>> CODEC = Suppliers.memoize(() ->  

         public static final RegistryObject<Codec<WheatSeedsConverterModifier>> CODEC = LOOT_MODIFIER_REGISTRAR.register("wheat_seeds_converter", () ->  

         RecordCodecBuilder.create(inst -> codecStart(inst).and(

         RecordCodecBuilder.create(inst -> codecStart(inst).and(

                 inst.group(

                 inst.group(

This method is only called if the <code>conditions</code> specified return <code>true</code> and the modder is now able to make the modifications they desire. In this case we can see that the number of <code>itemToCheck</code> meets or exceeds the <code>numSeedsToConvert</code> before modifying the list by adding an <code>itemReward</code> and removing any excess <code>itemToCheck</code> stacks, matching the previously mentioned effects: ''When a wheat block is harvested with shears, if enough seeds are generated as loot, they are converted to additional wheat instead''.

This method is only called if the <code>conditions</code> specified return <code>true</code> and the modder is now able to make the modifications they desire. In this case we can see that the number of <code>itemToCheck</code> meets or exceeds the <code>numSeedsToConvert</code> before modifying the list by adding an <code>itemReward</code> and removing any excess <code>itemToCheck</code> stacks, matching the previously mentioned effects: ''When a wheat block is harvested with shears, if enough seeds are generated as loot, they are converted to additional wheat instead''.

Utilize <code>GlobalLootModifierProvider</code> for [[datageneration|data generation]].

The codec can also be used for [[datageneration|data generation]] with a <code>GlobalLootModifierProvider</code>.

Additional [https://github.com/MinecraftForge/MinecraftForge/blob/1.19.x/src/test/java/net/minecraftforge/debug/gameplay/loot/GlobalLootModifiersTest.java examples] can be found on the Forge Git repository, including silk touch and smelting effects.

Additional [https://github.com/MinecraftForge/MinecraftForge/blob/1.19.x/src/test/java/net/minecraftforge/debug/gameplay/loot/GlobalLootModifiersTest.java examples] can be found on the Forge Git repository, including silk touch and smelting effects.