[MC-185618] Creepers can't be ignited with a fire charge

The Bug
A Creeper can't be ignited with a fire charge even though the fire charge acts like Flint & Steel when used.

Replicate

Get a Fire Charge
Use it on a Creeper
❌ Notice that it doesn't ignite

Code Analysis
Code analysis by @unknown can be found in this comment.

Linked issues

relates to 2

MC-257875 Fire charges aren't consumed when igniting creepers using them in survival or adventure mode Resolved

MCPE-66241 You can't ignite Creepers with Fire Charge item Reopened

Attachments

MC-185618.mp4

Comments 25

MMK21 2020-05-25T17:47:22Z

WAI

galaxy_2alex 2020-05-25T18:01:26Z

@Mish Rodic: Do you have any developer conformation that it is intended?

Iosiv Visokogorskiy 2020-07-26T10:12:02Z

This bug was before 1.16 snapshots, yes?

Avoma 2021-01-21T16:06:11Z

Can confirm in 21w03a.

Avoma 2021-02-05T12:45:07Z

Can confirm in 21w05b.

15 more comments

Avoma 2021-02-13T11:39:31Z

Can confirm in 21w06a.

Avoma 2021-02-21T13:50:46Z

Can confirm in 21w07a.

Avoma 2021-04-27T15:56:40Z

Can confirm in 21w16a.

xrup 2021-05-01T20:33:11Z

Can confirm in 21w17a

ampolive 2021-07-03T00:19:45Z

Can confirm in 1.17.1 Release Candidate 1.

ampolive 2021-09-22T22:30:57Z

Can confirm in 21w37a.

ampolive 2021-10-04T12:38:15Z

Can confirm in 21w39a.

ampolive 2021-10-07T20:14:52Z

Can confirm in 21w40a.

ampolive 2021-10-20T19:41:00Z

Can confirm in 21w42a.

ampolive 2021-11-11T13:21:49Z

Can confirm in 21w44a.

Avoma 2021-12-05T16:44:42Z

Can confirm in 1.18.

Avoma 2021-12-10T18:43:29Z

Can confirm in 1.18.1.

Avoma 2022-04-15T19:11:19Z

Can confirm in 1.18.2 and 22w15a.

[media]

Avoma 2022-04-25T09:50:05Z

Can confirm in 22w16b. Here's a code analysis of this issue.

Code Analysis:

The following is based on a decompiled version of Minecraft 1.18.2 using MCP-Reborn.

net.minecraft.world.entity.monster.Creeper.java

public class Creeper extends Monster implements PowerableMob {
   ...
   protected InteractionResult mobInteract(Player $p, InteractionHand $ih) {
      ItemStack itemstack = $p.getItemInHand($ih);
      if (itemstack.is(Items.FLINT_AND_STEEL)) {
         this.level.playSound($p, this.getX(), this.getY(), this.getZ(), SoundEvents.FLINTANDSTEEL_USE, this.getSoundSource(), 1.0F, this.random.nextFloat() * 0.4F + 0.8F);
         if (!this.level.isClientSide) {
            this.ignite();
            itemstack.hurtAndBreak(1, $p, (p_32290_) -> {
               p_32290_.broadcastBreakEvent($ih);
            });
         }

         return InteractionResult.sidedSuccess(this.level.isClientSide);
      } else {
         return super.mobInteract($p, $ih);
      }
   }
   ...

If we look at the above class, we can see that the only valid item that can be used on creepers is flint and steel. The mobInteract() method never checks if fire charges are used on creepers, which results in them doing nothing when used on these entities.

Avoma 2022-06-23T13:42:12Z

Can confirm in 1.19 and 1.19.1 Pre-release 1.

Mon_key 2022-08-10T06:35:34Z

Hey! This is presumably a Mojang intended feature. Supported by evidence from Mojang themselves, the official wiki, and previous versions, fire charges are unable to detonate creepers. Fire Charge – Minecraft Wiki (fandom.com)

"When used, it instantly lights a fire, similar to flint and steel. The fire charge is consumed in the process. It can prime TNT and light nether portals and campfires like flint and steel. However, it cannot be used to detonate creepers."

Hope this helps!

anthony cicinelli 2022-08-10T06:55:30Z

@unknown The wiki isn't a valid source of information. Only sources provided by Mojang are accepted. Also this report has been triaged and set a priority so it isn't WAI

Mon_key 2022-08-10T07:07:14Z

I apologize I had no idea! I don't know why I thought it was official! Sorry 😞

Avoma 2022-10-03T18:13:46Z

I managed to code a fix for this issue myself that's fully functioning and works as expected, so I've attached two screenshots to this report, one of which shows the current code and the other that shows the fixed code. I feel this information may be quite insightful hence my reasoning for providing it. 🙂

[media][media]

wallenplays1211 2022-11-23T17:53:03Z

The bug fixed in 1.19.3 Pre-2.