The Bug:
TNT minecarts sometimes detonate when going around corners.
Steps to Reproduce:
Build the setup shown in the attachment below.
Place a TNT minecart on the rail next to the diamond block.
Push the TNT minecart along the rails.
Take note as to whether or not TNT minecarts sometimes detonate when going around corners.
Observed Behavior:
TNT minecarts sometimes detonate when going around corners.
Expected Behavior:
TNT minecarts would not detonate when going around corners.
Linked issues
is duplicated by 5
MC-8719
Minecart with TNT DESTROYS TRACKS
Resolved
MC-9002
Minecarts with TNT destroy rails
Resolved
MC-9725
TNT Minecart explode when it derails/meets enclosed curve
Resolved
MC-10734
merged TNT Minecarts explode instantly when hitting a block even if it was already activated
Resolved
MC-12191
TNT Minecart Randomly Exploding
Resolved
relates to 1
Attachments
Comments 22
Lava column also detonates. (with damaging cart motion) but water column does not detonates the cart.
So pretty much the hitbox of the TNT cart intersects the wool block at a corner (not a surprise there, as they turn diagonally). Either the cart hitbox could be made smaller, or stronger checking for a detonation trigger could be implemented.
Not only the blocks inside of the corner trigger the explosion, also blocks outside. See MC-12191
Can confirm in 20w51a. I'd also like to request ownership as the owner has been inactive since October 2018.
Avoma
I think maybe TNT minecarts are meant to detonate if they hit blocks, but these are wrongly intersecting with blocks when they shouldn't be. I wonder what happens if you replace the block with a column of lava? That should detonate it but not normal blocks.