[MC-8565] Underwater: TNT dispensed into a block above a dispenser visually appears above the block Created: 27/Jan/13  Updated: 16/Nov/15  Resolved: 16/Nov/15

Status: Resolved
Project: Minecraft: Java Edition
Component/s: None
Affects Version/s: Snapshot 13w04a, Minecraft 1.5, Minecraft 1.7.4, Minecraft 14w06b, Minecraft 14w08a, Minecraft 1.7.5, Minecraft 14w11b, Minecraft 1.7.9, Minecraft 14w17a, Minecraft 1.8.1-pre3, Minecraft 1.8.8, Minecraft 15w46a
Fix Version/s: Minecraft 15w46a

Type: Bug
Reporter: Silver C Assignee: Unassigned
Resolution: Fixed Votes: 23
Labels: dispenser, tnt, water

Attachments: GIF File 15w46a.gif     PNG File 2013-01-27_17.34.21.png     PNG File 2013-01-27_17.34.22.png     PNG File 2013-01-27_17.34.23.png     PNG File 2013-01-27_17.34.25.png     PNG File 2013-01-27_17.34.27.png     JPEG File s001.jpg     JPEG File s002.jpg     JPEG File s003.jpg    
Issue Links:
Duplicate
is duplicated by MC-13591 TNT destroys blocks in water Resolved
is duplicated by MC-47883 TNT in water still blows up blocks. Resolved
is duplicated by MC-48573 tnt destroys blocks even when submerg... Resolved
is duplicated by MC-49124 TNT causes environmental damage even ... Resolved
is duplicated by MC-49276 Most TNT cannons no longer work Resolved
is duplicated by MC-49779 TNT in water destroys blocks Resolved
is duplicated by MC-49810 TNT is floating in water Resolved
is duplicated by MC-50218 TNT destroying Blocks in water Resolved
is duplicated by MC-50659 TNT in Water still destroys terrain Resolved
is duplicated by MC-50872 Explosions Bypasses Water. Resolved
is duplicated by MC-52215 bug with tnt and slab under water Resolved
is duplicated by MC-53054 TNT Destroys tiles when exploding in ... Resolved
is duplicated by MC-53269 Tnt Resolved
is duplicated by MC-53288 In 14w11b, tnt destroys blocks even w... Resolved
is duplicated by MC-53395 4+ TNT do block damage even in water Resolved
is duplicated by MC-53446 "too much" TNT in water deals environ... Resolved
is duplicated by MC-54276 TNT causes block damage despite being... Resolved
is duplicated by MC-59132 TNT causes damage under water Resolved
is duplicated by MC-76109 TNT exploding in water Resolved
CHK:
Confirmation Status: Confirmed

 Description   

Underwater dispenser with a block above it dispensed TNT which stayed in the water, then destroyed its surroundings.



 Comments   
Comment by [Mod] redstonehelper [ 16/Nov/15 ]

Oh, I missed that. Thanks. Resolving as fixed and updating title.

Comment by user-f2760 (Inactive) [ 16/Nov/15 ]

Yes, see the gif of 15w46a attached by Swekob

Comment by [Mod] redstonehelper [ 16/Nov/15 ]

It displays inside the block now?

Comment by user-f2760 (Inactive) [ 16/Nov/15 ]

it probably is working as intended with the setup shown in the attachments, as the tnt is in the block, and not in the water

Comment by Swekob [ 16/Nov/15 ]

jirauser71590: Yes, I know. I wasn't clear enough with my comment. I meant that I don't know if this issue as a whole is working as intended, and I still don't.

Comment by user-f2760 (Inactive) [ 16/Nov/15 ]

That's the intended behaviour, is previously displayed wrong on the client, (see comment above) and thus wasn't inside water, but inside a diffrent block, so it destroys blocks

Comment by Swekob [ 16/Nov/15 ]

Confirmed for 15w46a & 1.8.8

The TNTs are now visually inside the blocks in 15w46a. I don't know if that's intended or not.

Comment by TrazLander [ 06/Feb/15 ]

Actually, this bug's description/title is wrong. The real bug is that tnt entity is actually in the dirt block but displayed above 1 block on client-side.

Ya this is true. A TNT entity that is within a dirt block is of course going to blow up that dirt block, and be able to chain the explosion to other explode-able blocks around it. A TNT entity is not an item entity, so it's not going to get pushed to the side or anything, it's just going to sit inside that block until it explodes. The bug here is the visual TNT is getting displayed on top of the block instead of just visually staying inside of it.

This is what it looks like in-game: http://i.imgur.com/7aGyIry.png

But quickly logging out and opening MCEdit, you can see the TNT entity (red box) is sitting on top of the dispenser, within the obsidian block: http://i.imgur.com/i5OdLVP.png

Comment by KingSupernova [ 06/Feb/15 ]

Could someone update the title and description to reflect what is actually happening?

Comment by yut951121 [ 06/Feb/15 ]

Would any mods mind to confirm my statement above and maybe assign this ticket to me? (Or resolve this as Invalid so I can create proper one)

Comment by yut951121 [ 20/Dec/14 ]

Actually, this bug's description/title is wrong. The real bug is that tnt entity is actually in the dirt block but displayed above 1 block on client-side. Confirm this by running following command before TNT blows up :

/execute @e[type=PrimedTnt,r=5,c=1] ~ ~ ~ summon Chicken ~ ~ ~ {Invulnerable:1,NoAI:1}

The Chicken gets spawned in the block.
And see this video. Blocks don't get destroyed because TNT is actually in a obsidian block.

Comment by GrygrFlzr [ 25/Oct/14 ]

Confirmed on 1.8.1-pre3.

Comment by Galaxy_2Alex [ 25/Oct/14 ]

Is this still a concern in the current Minecraft version 1.8.1 Prerelease 3 / Launcher version 1.5.3 or later? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.

Comment by user-f2760 (Inactive) [ 09/May/14 ]

MC-48573:

freddy added a comment - Today 8:56 AM

This bug is still present in snapshot 14w19a.

Comment by Josh Olsen [ 30/Apr/14 ]

Still a problem in 14w18a

Problem is present in various scenarios where TNT is submerged in water. The effect is unreliable, but common.

Water is supposed to keep TNT from destroying blocks, however it is failing to do so. This renders numerous (almost all) cannon designs useless.

This issue needs updated as the problem occurs in a much broader range of situations than the original issue suggests. Many of the "duplicate" issues are more inclusive (and better written), and should be looked into.

Comment by Nicolas [ 01/Apr/14 ]

Confirmed in 14w11b.
My TNT cannon randomly blows up when I use it with 6 TNT blocks (ignited with redstone during the same tick). Sometimes everything works fine, but sometimes the TNT just ignores the flowing water.
It did not happen with 1 or 2 TNT as far as I can tell.
I did not test 4 or 5.
EDIT : Further testing showed that the bug occurs with 3 TNT (11 explosions/30 tries), but is at least unlikely with 1 or 2 TNT (0/30 for both).

Fortunately I was in creative when I found this bug, I can't imagine my reaction if it destroyed half of a redstone device in survival...
Please fix this bug :'(

Comment by Noah Gil [ 28/Feb/14 ]

I can duplicate this bug every time I make a TNT cannon. It seems to have to do with having enough fire power. For example, 1 block of TNT will not break any blocks underwater, but 5 will break blocks underwater.

Comment by Zedaph [ 27/Feb/14 ]

As Victor said, it is a wider range of circumstances where this happens. Please update this to be slightly more generalized as TNT in water sometimes (most of the time for me) blows up blocks around it, not just when dispensed from an upwards dispenser with a block on top.

Lots of things that have been marked here as duplicates, where in actual fact this should have been marked under one of them as this only explains "part" of the bug.

Comment by Victor Møller Pedersen [ 22/Apr/13 ]

It happens randomly in all conditions, be it flowing or still water, no matter how it is dispensed, block or not. It just happens sometimes.

Comment by Lucas Werkmeister [ 11/Mar/13 ]

Confirmed in Release Candidate.
This also happens when the dispenser is facing sideways, but not when it's facing downwards. Also, the block in front is necessary.

Comment by GrygrFlzr [ 28/Jan/13 ]

Confirmed for 13w04a.
Attached brighter screenshots for easy viewing. Would you like me to remove the previous ones?

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