Hi! My global loot modifier is running for a leave at once at the moment.

But I want to change the loot table of all minecraft leaves, then I used the alternative condition:

{
  "condition": "minecraft:alternative",
  "terms": [
    {
      "condition": "forge:loot_table_id",
      "loot_table_id": "minecraft:blocks/dark_oak_leaves"
    },
    {
      "condition": "forge:loot_table_id",
      "loot_table_id": "minecraft:blocks/birch_leaves"
    },
    {
      "condition": "forge:loot_table_id",
      "loot_table_id": "minecraft:blocks/oak_leaves"
    }
    etc...
  ]
}

But I want this global modifier to modify loot tables of leaves from other mods where there is leaves placed in "leaves" tag by other modders. 

(this is my question, is it possible to do this and how to use tag in this case please)

Then I tried a lot of different options in the json file but I can't figure it out 

Then I finally tried this two options:

1-

{
  "condition": "minecraft:block_state_property",
  "predicate": {
    "tags" : [
      {
        "tag": "#minecraft:leaves"
      }
    ]
  }
}

2-

{
  "condition": "minecraft:block_state_property",
  "tag": "#minecraft:leaves"
}

 

But I got this error message.

Quote

[15:32:09] [Render thread/ERROR] [ne.mi.co.lo.LootModifierManager/]: Couldn't parse loot modifier naturerain:birch_leaves_glm
com.google.gson.JsonSyntaxException: Missing block, expected to find a string
    at net.minecraft.util.GsonHelper.getAsString(GsonHelper.java:108) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading}
    at net.minecraft.world.level.storage.loot.predicates.LootItemBlockStatePropertyCondition$Serializer.deserialize(LootItemBlockStatePropertyCondition.java:83) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading}
    at net.minecraft.world.level.storage.loot.predicates.LootItemBlockStatePropertyCondition$Serializer.deserialize(LootItemBlockStatePropertyCondition.java:70) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading}
    at net.minecraft.world.level.storage.loot.GsonAdapterFactory$JsonAdapter.deserialize(GsonAdapterFactory.java:113) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading}
    at com.google.gson.internal.bind.TreeTypeAdapter.read(TreeTypeAdapter.java:69) ~[gson-2.8.9.jar%2343!/:?] {}
    at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.read(TypeAdapterRuntimeTypeWrapper.java:41) ~[gson-2.8.9.jar%2343!/:?] {}
    at com.google.gson.internal.bind.ArrayTypeAdapter.read(ArrayTypeAdapter.java:72) ~[gson-2.8.9.jar%2343!/:?] {}
    at com.google.gson.Gson.fromJson(Gson.java:963) ~[gson-2.8.9.jar%2343!/:?] {}
    at com.google.gson.Gson.fromJson(Gson.java:1034) ~[gson-2.8.9.jar%2343!/:?] {}
    at com.google.gson.Gson.fromJson(Gson.java:1006) ~[gson-2.8.9.jar%2343!/:?] {}
    at net.minecraftforge.common.loot.LootModifierManager.deserializeModifier(LootModifierManager.java:115) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2378%2385!/:?] {re:classloading}
    at net.minecraftforge.common.loot.LootModifierManager.lambda$apply$0(LootModifierManager.java:101) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2378%2385!/:?] {re:classloading}
    at java.util.ArrayList.forEach(ArrayList.java:1511) ~[?:?] {}
    at net.minecraftforge.common.loot.LootModifierManager.apply(LootModifierManager.java:99) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2378%2385!/:?] {re:classloading}
    at net.minecraftforge.common.loot.LootModifierManager.apply(LootModifierManager.java:40) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2378%2385!/:?] {re:classloading}
    at net.minecraft.server.packs.resources.SimplePreparableReloadListener.lambda$reload$1(SimplePreparableReloadListener.java:12) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading}
    at java.util.concurrent.CompletableFuture$UniAccept.tryFire(CompletableFuture.java:718) ~[?:?] {}
    at java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:482) ~[?:?] {}
    at net.minecraft.server.packs.resources.SimpleReloadInstance.lambda$new$3(SimpleReloadInstance.java:65) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading}
    at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:146) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B}
    at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:22) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading}
    at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:116) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B}
    at net.minecraft.util.thread.BlockableEventLoop.managedBlock(BlockableEventLoop.java:129) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B}
    at net.minecraft.client.Minecraft.makeWorldStem(Minecraft.java:2128) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.client.Minecraft.doLoadLevel(Minecraft.java:1955) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.client.Minecraft.loadLevel(Minecraft.java:1919) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.client.gui.screens.worldselection.WorldSelectionList$WorldListEntry.loadWorld(WorldSelectionList.java:473) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.gui.screens.worldselection.WorldSelectionList$WorldListEntry.joinWorld(WorldSelectionList.java:330) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:runtimedistcleaner:A}
    at java.util.Optional.ifPresent(Optional.java:178) ~[?:?] {}
    at net.minecraft.client.gui.screens.worldselection.SelectWorldScreen.lambda$init$3(SelectWorldScreen.java:57) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.gui.components.Button.onPress(Button.java:29) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.gui.components.AbstractButton.onClick(AbstractButton.java:17) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.gui.components.AbstractWidget.mouseClicked(AbstractWidget.java:111) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.gui.components.events.ContainerEventHandler.mouseClicked(ContainerEventHandler.java:31) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.MouseHandler.lambda$onPress$0(MouseHandler.java:93) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.gui.screens.Screen.wrapScreenError(Screen.java:528) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.client.MouseHandler.onPress(MouseHandler.java:90) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.MouseHandler.lambda$setup$4(MouseHandler.java:195) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.util.thread.BlockableEventLoop.execute(BlockableEventLoop.java:90) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B}
    at net.minecraft.client.MouseHandler.lambda$setup$5(MouseHandler.java:194) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:runtimedistcleaner:A}
    at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36) ~[lwjgl-glfw-3.2.2.jar%2357!/:build 10] {}
    at org.lwjgl.system.JNI.invokeV(Native Method) ~[lwjgl-3.2.2.jar%2363!/:build 10] {}
    at org.lwjgl.glfw.GLFW.glfwWaitEventsTimeout(GLFW.java:3174) ~[lwjgl-glfw-3.2.2.jar%2357!/:build 10] {}
    at com.mojang.blaze3d.systems.RenderSystem.limitDisplayFPS(RenderSystem.java:187) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.Minecraft.runTick(Minecraft.java:1096) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.client.Minecraft.run(Minecraft.java:669) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.client.main.Main.main(Main.java:205) ~[forge-1.18.2-40.1.73_mapped_parchment_1.18.1-2022.03.06-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:runtimedistcleaner:A}
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] {}
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?] {}
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] {}
    at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?] {}
    at net.minecraftforge.fml.loading.targets.ForgeClientUserdevLaunchHandler.lambda$launchService$0(ForgeClientUserdevLaunchHandler.java:24) ~[fmlloader-1.18.2-40.1.73.jar%230!/:?] {}
    at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-9.1.3.jar%2311!/:?] {}
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-9.1.3.jar%2311!/:?] {}
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-9.1.3.jar%2311!/:?] {}
    at cpw.mods.modlauncher.Launcher.run(Launcher.java:106) [modlauncher-9.1.3.jar%2311!/:?] {}
    at cpw.mods.modlauncher.Launcher.main(Launcher.java:77) [modlauncher-9.1.3.jar%2311!/:?] {}
    at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-9.1.3.jar%2311!/:?] {}
    at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-9.1.3.jar%2311!/:?] {}
    at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:149) [bootstraplauncher-1.0.0.jar:?] {}
 

 

Edited August 31, 20223 yr by inuripse

That's because there is no loot item condition for if the item belongs to a given tag. You would need to make your own if you wanted to support this case. See anything that extends `LootItemCondition` and then register it using one of forge's registry methods.

Thank you for giving me the path to follow ! 

I will try to do so  (but don't close the topic yet please in case I can't find out... And also I want to write the answer when it will be done)

Ok ! I was stuck on the deserialize method of the Serializer of my LootItemCondition and search for help and found this : [1.18.2] Method for iterating over blocks belonging to a tag

https://forums.minecraftforge.net/topic/113816-1182-method-for-iterating-over-blocks-belonging-to-a-tag/#comment-505993

I just completed what I was missing and it runs.