Commit Graph
5 Commits
Author SHA1 Message Date
Christopher Head 8e6536ca2e Simplify turnon/turnoff.
It is no longer possible for get_node_force to return nil if the target
location does, in fact, exist, because a VM will always be able to load
it (whereas a forceload might not, due to exhaustion of forceload
resources). So it is no longer necessary to handle get_node_force
returning nil by deferring processing.
2016-08-24 00:42:40 -07:00
Christopher Head bc9d4c2d5a Use VM transactions for conductor state changes.
VoxelManipulator-based transactions are used to hopefully speed up
scanning and replacing of networks of conductors when receptors start or
stop driving signals into them.
2016-08-24 00:42:40 -07:00
Christopher Head 6d79272ed4 Implement VoxelManipulator-based transactions.
Rather than calling out through the Lua-to-C API for each node that
needs to be read or written, a group of map reads (and optionally
writes) can be grouped into a transaction. Access to map data within the
transaction is provided at high speed by means of VoxelManipulators.
Once the reads and writes are finished, the transaction can be committed
or aborted.
2016-08-24 00:42:38 -07:00
Christopher Head 564cee346a Use VoxelManipulators for get_node_force.
A VoxelManipulator, when asked to read a mapblock, in addition to making
that mapblock available to the caller, also pulls it into the server’s
map cache, thus making get_node calls in the immediate future succeed.

This has the dual advantages that not every mapblock containing a
Mesecons circuit need remain loaded at all times (rather mapblocks can
be loaded on demand as signals are sent), and that the server need not
bother running ABMs and ticking entities within those mapblocks that are
loaded due to Mesecons signalling.
2016-08-24 00:41:47 -07:00
Christopher Head 53eaf2af11 Remove an obsolete comment. 2016-08-16 00:16:24 -07:00