When a lightning bolt is created, it will attempt to detect a lightning rod 1 block below itself.
It does this correctly in ServerLevel.java tickChunk(), although right after that it runs lightningBolt.moveTo(Vec3.atBottomCenterOf(lvt8)); which offsets the lightning bolt before creating it.
That same check is done within the lightning bolt in powerLightningRod() where it checks the block below, but now that the block is offset it checks the incorrect block.
If you have a second lightning rod below, it will power that lightning rod instead
Reproduce
Place two lightning rods one above and one below (see image for placement)
do /summon lightning_bolt on the top lightning rod
❌ Notice the bottom lightning rod is powered not the top
Linked issues
Attachments
Comments 7
Possible Fix: Check if lightning bolt is hitting the top of a block, if so then affect the block underneath, else effect block it's in.
@unknown this is your report you can add the affected versions yourself you don't need to comment them
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Erik Broes
Video attached.