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I would like to know if there is a way to make it so when a player places a block of TNT, it immediately fuses, without the use of flint and steel, fire charges, etc.

Please, no mods or plugins.

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2 Answers 2

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If you want to use a command block to remotely prime it, just use /setblock <coordinates> minecraft:redstone_torch to place a redstone torch next to the TNT (you can replace minecraft:redstone_torch with anything that would output a signal like).

Otherwise, if you want TNT to be primed when placed, you could use /fill replacing TNT with primed TNT, i'm not sure of primed YNY's data value though. To have it keep executing just use this clock.

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  • I know all that stuff that's what the etc. was for but I just want it so when someone places it on the ground in an enclosed room it automatically sets off just using Command Blocks and TNT thats all
    – FireStrike289
    Nov 14, 2014 at 2:42
  • @FireStrike289 missed the command block part, think the edit should do it
    – Memor-X
    Nov 14, 2014 at 2:54
  • Using /setblock implies that the Command Block knows where the TNT is gonna get places in this I want you to be able to place it wherever you want. Also the room I'm talking about it a 71x71 circular room with a 36 block high dome I have mobGriefing off but the TNT is to kill mobs like a weapon but you need to be able to place it wherever you want
    – FireStrike289
    Nov 14, 2014 at 3:11
  • @FireStrike289 edited adding in method for using /execute and /fill, though i'm not entirely sure of the results, in theory it should work if you set the xyz/xyz2 values of /fill to cover your room
    – Memor-X
    Nov 14, 2014 at 3:33
  • I'm not sure how to use /execute so if you could tell me I guess I can accept your answer. Thanks in advance
    – FireStrike289
    Nov 14, 2014 at 3:37
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In case anyone needs this, in the newer versions there are two ways of doing this.

Method 1, Use spawn eggs instead:

/give @p mooshroom_spawn_egg{display:{Name:'{"text":"Primed TNT Spawn Egg","color":"red","italic":false}'},EntityTag:{id:"minecraft:tnt",Fuse:0}} 1

This spawns a tnt entity with a fuse of 0^

The other would be to have a command block running on repeat with the command:

execute as @e[type=tnt] run data merge entity @s {Fuse:0}

But this only sets the fuse to 0 once a piece of tnt is lit, which is not what this question was looking for but still could be helpful.

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