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How to modify vanilla block drops in 1.12.2?


Jiro7

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I've been searching about this but all the answers seem to be outdated. I want to change the drops of vanilla blocks. For example, I want Iron Ores to drop a custom item I made instead of the block itself. I also want to change the amount of lapis dropped.

 

I tried handling the BlockEvent.HarvestDropsEvent event, however it doesn't seem to have any method to change the drops nor drop amounts, just to change the drop chances. Any help?

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6 minutes ago, Jiro7 said:

it doesn't seem to have any method to change the drops nor drop amounts

This is not true. BlockEvent.HarvestDropsEvent has a List<ItemStack> that contains all drops. You can access the list with HarvestDropsEvent#getDrops. You can then modify the list's contents as you want.

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13 minutes ago, V0idWa1k3r said:

This is not true. BlockEvent.HarvestDropsEvent has a List<ItemStack> that contains all drops. You can access the list with HarvestDropsEvent#getDrops. You can then modify the list's contents as you want.

Thanks, I managed to make it drop an item. However, there is only one value for drop chances, how can I give each drop on the list its own probability?

So for example I want it to drop between 1-3 iron nuggets and a 10% chance to drop an iron ingot. Is it possible?

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8 minutes ago, Jiro7 said:

I want it to drop between 1-3 iron nuggets and a 10% chance to drop an iron ingot. Is it possible?

Have your random chance happen in the event. Add a new ItemStack to the list that is your nuggets with a count of 1 - 3 based on random number, then check against a random value and if it is within the range you want add an Iron ingot.

drops.add(new ItemStack(Items.IRON_NUGGET, 1 + rand.nextInt(2), 0));
if (rand.nextFloat() <= 0.1F)
{
	drops.add(new ItemStack(Items.IRON_INGOT, 1, 0));
}

 

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24 minutes ago, V0idWa1k3r said:

Have your random chance happen in the event. Add a new ItemStack to the list that is your nuggets with a count of 1 - 3 based on random number, then check against a random value and if it is within the range you want add an Iron ingot.


drops.add(new ItemStack(Items.IRON_NUGGET, 1 + rand.nextInt(2), 0));
if (rand.nextFloat() <= 0.1F)
{
	drops.add(new ItemStack(Items.IRON_INGOT, 1, 0));
}

 

Oh, that was simpler than I thought, thank you.

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  • 7 months later...
On 10/23/2018 at 11:13 PM, V0idWa1k3r said:

Have your random chance happen in the event. Add a new ItemStack to the list that is your nuggets with a count of 1 - 3 based on random number, then check against a random value and if it is within the range you want add an Iron ingot.


drops.add(new ItemStack(Items.IRON_NUGGET, 1 + rand.nextInt(2), 0));
if (rand.nextFloat() <= 0.1F)
{
	drops.add(new ItemStack(Items.IRON_INGOT, 1, 0));
}

 

Where in mod main class should be this function?

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  • 6 months later...
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              | None                                     |     | L     | llibrary           | 1.7.20                  | llibrary-1.7.20-1.12.2.jar                            | None                                     |     | L     | mowziesmobs        | 1.5.8                   | mowziesmobs-1.5.8.jar                                 | None                                     |     | L     | nocubessrparmory   | 3.0.0                   | NoCubes_SRP_Combat_Addon_3.0.0.jar                    | None                                     |     | L     | nocubessrpnests    | 3.0.0                   | NoCubes_SRP_Nests_Addon_3.0.0.jar                     | None                                     |     | L     | nocubessrpsurvival | 3.0.0                   | NoCubes_SRP_Survival_Addon_3.0.0.jar                  | None                                     |     | L     | nocubesrptweaks    | V4.1                    | nocubesrptweaks-V4.1.jar                              | None                                     |     | L     | patchouli          | 1.0-23.6                | Patchouli-1.0-23.6.jar                                | None                                     |     | L     | artifacts          | 1.1.2                   | RLArtifacts-1.1.2.jar                                 | None                                     |     | L     | rsgauges           | 1.2.8                   | rsgauges-1.12.2-1.2.8.jar                             | None                                     |     | L     | rustic             | 1.1.7                   | rustic-1.1.7.jar                                      | None                                     |     | L     | silentlib          | 3.0.13                  | SilentLib-1.12.2-3.0.14+168.jar                       | None                                     |     | L     | scalinghealth      | 1.3.37                  | ScalingHealth-1.12.2-1.3.42+147.jar                   | None                                     |     | L     | lteleporters       | 1.12.2-3.0.2            | simpleteleporters-1.12.2-3.0.2.jar                    | None                                     |     | L     | spartanshields     | 1.5.5                   | SpartanShields-1.12.2-1.5.5.jar                       | None                                     |     | L     | spartanweaponry    | 1.5.3                   | SpartanWeaponry-1.12.2-1.5.3.jar                      | None                                     |     | L     | srparasites        | 1.9.18                  | SRParasites-1.12.2v1.9.18.jar                         | None                                     |     | L     | treasure2          | 2.2.0                   | Treasure2-mc1.12.2-f14.23.5.2859-v2.2.1.jar           | None                                     |     | L     | treeharvester      | 4.0                     | treeharvester_1.12.2-4.0.jar                          | None                                     |     | L     | twilightforest     | 3.11.1021               | twilightforest-1.12.2-3.11.1021-universal.jar         | None                                     |     | L     | variedcommodities  | 1.12.2                  | VariedCommodities_1.12.2-(31Mar23).jar                | None                                     |     | L     | voicechat          | 1.12.2-2.4.32           | voicechat-forge-1.12.2-2.4.32.jar                     | None                                     |     | L     | wolfarmor          | 3.8.0                   | WolfArmorAndStorage-1.12.2-3.8.0-universal-signed.jar | None                                     |     | L     | worldborder        | 2.3                     | worldborder_1.12.2-2.3.jar                            | None                                     |     | L     | midnight           | 0.3.5                   | themidnight-0.3.5.jar                                 | None                                     |     | L     | structurize        | 1.12.2-0.10.277-RELEASE | structurize-1.12.2-0.10.277-RELEASE.jar               | None                                     |     Loaded coremods (and transformers):  llibrary (llibrary-core-1.0.11-1.12.2.jar)   net.ilexiconn.llibrary.server.core.plugin.LLibraryTransformer   net.ilexiconn.llibrary.server.core.patcher.LLibraryRuntimePatcher WolfArmorCore (WolfArmorAndStorage-1.12.2-3.8.0-universal-signed.jar)    AstralCore (astralsorcery-1.12.2-1.10.27.jar)    CreativePatchingLoader (CreativeCore_v1.10.71_mc1.12.2.jar)    SecurityCraftLoadingPlugin ([1.12.2] SecurityCraft v1.9.8.jar)    ForgelinPlugin (Forgelin-1.8.4.jar)    midnight (themidnight-0.3.5.jar)   com.mushroom.midnight.core.transformer.MidnightClassTransformer FutureMC (Future-MC-0.2.19.jar)   thedarkcolour.futuremc.asm.CoreTransformer SpartanWeaponry-MixinLoader (SpartanWeaponry-1.12.2-1.5.3.jar)    Backpacked (backpacked-1.4.3-1.12.2.jar)   com.mrcrayfish.backpacked.asm.BackpackedTransformer LoadingPlugin (Reskillable-1.12.2-1.13.0.jar)   codersafterdark.reskillable.base.asm.ClassTransformer LoadingPlugin (Bloodmoon-MC1.12.2-1.5.3.jar)   lumien.bloodmoon.asm.ClassTransformer     Profiler Position: N/A (disabled)     Is Modded: Definitely; Server brand changed to 'fml,forge'     Type: Dedicated Server (map_server.txt)
    • When i add mods like falling leaves, visuality and kappas shaders, even if i restart Minecraft they dont show up in the mods menu and they dont work
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