How to change vanilla blocks drops? (1.15)

[AntoPrime]

Hi,

 

I'm new to modding and I would like to drop a custom item from a vanilla block. After several tests, I tested this with just a vanilla item:

Quote

@SubscribeEvent
        public void pickupItem(HarvestDropsEvent event)
        {
            if (event.getState().getBlock() == Blocks.DIRT)
            {
                event.getDrops().add(new ItemStack(Items.STONE));
            }
        }

 

But even this doesn't drop a stone from dirt. Can you please help me?

[Ugdhar]

Loot tables https://minecraft.gamepedia.com/Loot_table

[AntoPrime]

Thanks for the reply.

 

I've read about it, but I don't know how to properly apply it. Do I need to put the loot table file in my mod ressources? What do I need to put in the file?

Edited April 12, 2020 by AntoPrime

[Ugdhar]

Yes, in your resources, but in assets/minecraft/loot_tables instead of your modid, and that should override vanilla loot tables.

I have little experience with it, so I'm not sure what happens if multiple mods override a loot table.

Look at vanilla loot tables for examples, they should be in the client-extra jar in your IDEs referenced libraries.

Edited April 12, 2020 by Ugdhar

[AntoPrime]

Thank you, I found how to do it, it's really easy!

 

What I didn't get is that I had to make a directory in src/main/resources and name it data.minecraft.loot_tables.blocks and place my JSON file in it. By just naming the package "data.minecraft", it automatically overrides Minecraft's loot tables!

 

To replace the loot table with your custom item, that's how you need to write the JSON file:

Quote

{
    "pools":
      [
        {
              "rolls": 1,
              "entries":
              [
                {
                      "type": "item",
                      "name": "modid:custom_item"
                }
              ]
        }
      ]
}

 

And name the file oak_log if you want to override the Oak Log loot table for example.

Edited April 13, 2020 by AntoPrime

[Draco18s]

Note, if you use that json file, explosions may not treat your block correctly.