[1.14.4] Can't figure out to add entry to already existing lootpool

[Tieso2001]

So I tried to make it so that my newly added seeds drop when breaking grass, just like wheat seeds. I couldn't get it working so I tried to do what @Draco18s mentioned in an earlier thread.

 

Here's what I did

Spoiler

@Mod.EventBusSubscriber(modid = BoneAppleTea.MOD_ID)
public class EventHandlers {

    @SubscribeEvent
    public static void onLootLoad(LootTableLoadEvent event) {
        if (event.getName().equals(new ResourceLocation("minecraft", "blocks/grass"))) {
			event.getTable().addPool(LootPool.builder().addEntry(TableLootEntry.builder(new ResourceLocation(BoneAppleTea.MOD_ID, "blocks/grass"))).build());
        }
    }
}

 

 

And here's the json file I created:

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{
  "type": "minecraft:block",
  "pools": [
    {
      "rolls": 1,
      "entries": [
        {
          "type": "minecraft:alternatives",
          "children": [
            {
              "type": "minecraft:item",
              "conditions": [
                {
                  "condition": "minecraft:random_chance",
                  "chance": 0.125
                }
              ],
              "functions": [
                {
                  "function": "minecraft:apply_bonus",
                  "enchantment": "minecraft:fortune",
                  "formula": "minecraft:uniform_bonus_count",
                  "parameters": {
                    "bonusMultiplier": 2
                  }
                },
                {
                  "function": "minecraft:explosion_decay"
                }
              ],
              "name": "boneappletea:barley_seeds"
            }
          ]
        }
      ]
    }
  ]
}

 

 

This is all similar to what Draco18s did in his mod:

https://github.com/Draco18s/ReasonableRealism/blob/1.14.4/src/main/java/com/draco18s/harderfarming/EventHandlers.java

https://github.com/Draco18s/ReasonableRealism/blob/1.14.4/src/main/resources/data/harderfarming/loot_tables/blocks/grass.json

 

The problem is that this adds a new pool to the already existing loot table for minecraft:grass. This makes it so that when you shear grass, the seeds from my mod can still drop. To fix this I don't want to add a new pool to the table, but modify the already existing table (the one which tells it to drop grass when using shears, and when not using shears have a chance to drop wheat seeds). If I can add an entry to this table then grass will: A: drop itself when using shears, B: sometimes drop wheat seeds, or C : sometimes drop my seeds.

 

I tried to add an entry to the pool but because addEntry can not be directly used (it is commented out in LootPool.class, I have no idea why) I did the following:

Spoiler

@Mod.EventBusSubscriber(modid = BoneAppleTea.MOD_ID)
public class EventHandlers {

    @SubscribeEvent
    public static void onLootLoad(LootTableLoadEvent event) {
        if (event.getName().equals(new ResourceLocation("minecraft", "blocks/grass"))) {

            LootPool pool = event.getTable().getPool("main");
            LootPool newPool = pool.builder().addEntry(TableLootEntry.builder(new ResourceLocation(BoneAppleTea.MOD_ID, "blocks/grass"))).build();

            event.getTable().addPool(newPool);
            event.getTable().removePool("main");
        }
    }
}

 

This also didn't work because now the original LootPool is not working and only the entry that I added. Grass can now only drop my seeds, even when using shears. Wheat seeds or grass itself don't drop anymore. I also tried this:

Spoiler

@Mod.EventBusSubscriber(modid = BoneAppleTea.MOD_ID)
public class EventHandlers {

    @SubscribeEvent
    public static void onLootLoad(LootTableLoadEvent event) {
        if (event.getName().equals(new ResourceLocation("minecraft", "blocks/grass"))) {

            LootPool pool = event.getTable().getPool("main");
            event.setTable(LootTable.builder().addLootPool(pool.builder().addEntry(TableLootEntry.builder(new ResourceLocation(BoneAppleTea.MOD_ID, "blocks/grass")))).build());
        }
    }
}

 

The result of this was the same as the thing I tried earlier: only my seeds drop. Wheat seeds and grass itself don't drop anymore.

 

If someone could help me with this that would be greatly appreciated.

Edited January 10, 2020 by Tieso2001

[Draco18s]

That gets tricky.

The only thing I can suggest is doing what I did back in 1.12:

https://github.com/Draco18s/ReasonableRealism/blob/1.12.1/src/main/java/com/draco18s/hardlib/util/LootUtils.java

I have not updated this class and it does some reflection magic to get access to things, but it will let you directly modify loot pools. Or at least, give you the information necessary to write such a hook.

[Tieso2001]

Thanks for the information. I was hoping that it would be easier than that. Hope forge will add an easy way to do this because adding seeds to grass in 1.12.2 was really easy, using just one line of code.