Dispensers and droppers will not be activated by either redstone blocks or redstone torches.
They do get activated by other sources.
I placed TNT down and then a redstone torch next to it, on the same level.
What I expected to happen was
TNT blows up.
What actually happened was
The TNT did not ignite, but when I triggered a block update of the torch (by placing another torch next to the original and diagonally from the TNT), it did ignite.
How to replicate
1) Place TNT on a flat area of ground
2) Place a redstone torch or block adjacent to the TNT - even on all 4 sides.
3) Note that the TNT does not ignite.
4) Place a torch next to the original(s) (but not a block, this will not trigger an update) Relative position to the TNT does not matter upon further testing
5) Note that the TNT now ignites.
How this should be fixed
Ensure that TNT receives block updates from redstone torches and blocks as soon as they are placed, instead of waiting for them to send one. This does not occur with doors or pistons, which are also redstone-activated device, so something has not been copied over.
Linked issues
is duplicated by 49
MC-8223
Tnt doesnt light with redstonetorch next to it.
Resolved
MC-8241
Dispenser with tnt
Resolved
MC-8248
Redstone torches do not power dispensers in any way, but Do power Droppers
Resolved
MC-8287
TNT doesn't always activate when activated with redstone.
Resolved
MC-8298
redstone block with sticky pistons dont activate TNT
Resolved
relates to 3
Attachments
Comments 22
I found out that if you place 2 torches beside the TNT and break one of them that the TNT will ignite.
Once again. Make this 12w07a. And get this fixed, Dinnerbone, this is a major problem! One of the ways most people set off TNT is through redstone torches, not flint and steel.
Jens Bergensten
...and TNT.