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Make sure generated blocks have their timestamp set

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behavior change: newly generated blocks are no longer momentarily activated.
this shouldn't matter for anyone and did not consistently apply to all blocks anyway

addresses issue from #15902 for new maps(!)
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sfan5 2025-03-18 21:50:17 +01:00
parent ed40ea010b
commit 7b746d21f9
8 changed files with 66 additions and 32 deletions
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15
doc/lua_api.md
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@ -9479,12 +9479,17 @@ Used by `core.register_lbm`.
A loading block modifier (LBM) is used to define a function that is called for
specific nodes (defined by `nodenames`) when a mapblock which contains such nodes
gets activated (not loaded!).
gets activated (**not loaded!**).
Note: LBMs operate on a "snapshot" of node positions taken once before they are triggered.
*Note*: LBMs operate on a "snapshot" of node positions taken once before they are triggered.
That means if an LBM callback adds a node, it won't be taken into account.
However the engine guarantees that when the callback is called that all given position(s)
contain a matching node.
However the engine guarantees that at the point in time when the callback is called
that all given positions contain a matching node.
*Note*: For maps generated in 5.11.0 or older, many newly generated blocks did not
get a timestamp set. This means LBMs introduced between generation time and
time of first activation will never run.
Currently the only workaround is to use `run_at_every_load`.
```lua
{
@ -9508,7 +9513,7 @@ contain a matching node.
action = function(pos, node, dtime_s) end,
-- Function triggered for each qualifying node.
-- `dtime_s` is the in-game time (in seconds) elapsed since the block
-- was last active.
-- was last active (available since 5.7.0).
bulk_action = function(pos_list, dtime_s) end,
-- Function triggered with a list of all applicable node positions at once.