Minecraft Java Edition – How to Delete All TNT Within a Range

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I was experimenting with redstone and command blocks and now I have tons of TNT scattered all over my (near) world. I know I shouldn't have scattered the TNT in the first place, but it's too late now, and I'm worried about a creeper blowing up my universe. Is there a way to turn them all into air? I thought of putting

/fill ~10 ~10 ~10 ~-10 ~-10 ~-10 air 0 replace tnt

in a repeating command block, or even entering

/execute @p ~ ~ ~ fill ~10 ~10 ~10 ~-10 ~-10 ~-10 air 0 replace tnt

but then I'd still have to run around my world for a few hours, getting close enough to TNT to delete it. Is there an easier way?

Best Answer

Your fill command is already the best you can do. You could make a system of self-cloning armor stands or command blocks, but that would generate more problems than it solves. But you can make a few improvements:

Replace the 10s in your command with 15s to increase your reach:
execute @p ~ ~ ~ fill ~-15 ~-15 ~-15 ~15 ~15 ~15 air 0 replace tnt
If you know a range where the TNTs are, you can limit one coordinate and increase the others. For example if you know that they are all in the first three layers above the surface of a superflat world, you can use execute @p ~ ~ ~ fill ~-51 ~-1 ~-51 ~51 ~1 ~51.
You can go into gamemode 3 and scroll the mousewheel up to increase your speed. Pressing the sprint key also helps.

And lastly, if the TNTs are close enough to each other, a flint and steel could solve your problem very quickly. ;)

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Minecraft Java Edition – How to Testfor a Block Placed Using Minecraft Commands

There are a few ways to detect a certain block in an area:

If you just want to detect whether or not a certain block is inside an area and if you don't mind having the block destroyed, you can use this command:

/execute @a ~ ~ ~ fill ~-10 ~-10 ~-10 ~10 ~10 ~10 air 0 replace wool 14

You can detect the block placed using a comparator or a conditional chain command block.

If you, however, want to know where the block is placed and or keep the block, you can use this more complex approach.

/execute @a ~ ~ ~ fill ~-8 ~-8 ~-8 ~8 ~8 ~8 structure_void 0 keep

#Repeat this section for how many types of blocks you want to test for
/execute @a ~ ~ ~ fill ~-8 ~-8 ~-8 ~8 ~8 ~8 air 0 replace wool 11
/execute @a ~ ~ ~ fill ~-8 ~-8 ~-8 ~8 ~8 ~8 command_block 0 keep {auto:1,Command:"summon armor_stand ~ ~ ~ {Invisible:1,NoGravity:1,Marker:1,Tags:["wool11"]}"}

/execute @a ~ ~ ~ fill ~-8 ~-8 ~-8 ~8 ~8 ~8 air 0 replace wool 14
/execute @a ~ ~ ~ fill ~-8 ~-8 ~-8 ~8 ~8 ~8 command_block 0 keep {auto:1,Command:"summon armor_stand ~ ~ ~ {Invisible:1,NoGravity:1,Marker:1,Tags:["wool14"]}"}

...

/execute @a ~ ~ ~ fill ~-8 ~-8 ~-8 ~8 ~8 ~8 air 0 replace structure_void
/blockdata ~2 ~ ~ {auto:1}
/blockdata ~1 ~ ~ {auto:0}
[Impulse] /execute @a ~ ~ ~ fill ~-10 ~-10 ~-10 ~10 ~10 ~10 air replace command_block
/execute @e[type=armor_stand,tag=wool11] ~ ~ ~ say You placed blue wool!
/execute @e[type=armor_stand,tag=wool14] ~ ~ ~ say You placed red wool!

Minecraft Commands – How to Place a Red Block Under a Red Team Member on a White Block

/testfor is rarely used nowadays, because there are better ways:

/execute at @a[team=red] run fill ~ ~-1 ~ ~ ~-1 ~ red_concrete replace white_concrete

Best Answer

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Minecraft Java Edition – How to Testfor a Block Placed Using Minecraft Commands

Minecraft Commands – How to Place a Red Block Under a Red Team Member on a White Block

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