USAGE.md describes the refused posted unlocks and their log line, and
says that the icon queries and a damaged or unwritable unlock or
statistics file stop the game with an error. The debt entries of
libSceNpTrophy2 and libSceNpUniversalDataSystem no longer say that any
posted id is stored. Both USAGE.md and the libSceNpTrophy2 entry say
that without trophy data the platinum is not unlocked when the other
trophies are.
Events other than the trophy events go through the title's
sce_sys/uds/udsNN.ucp: stats_definition.json gives the statistics that
keep their latest uint32 or uint64 value, and stats_extraction.json the
event property ($.name, dotted for nested objects) that sets each one.
Statistics are kept per user and service label in
_trophy/<user id>_<service label>.stats.txt next to the unlocks.
After each event that sets a statistic, every trophy's unlockCondition
(ge, gt, le or lt against its targetValue) is checked on the values that
event set and the stored values of the other statistics, so a later
event setting the same statistic cannot hide what this one reached.
Reached trophies unlock through the same path as _UnlockTrophy.
Progressive trophies report their statistic as progress, and
APS5_TRACE_UDS prints each statistic an event sets. A missing udsNN.ucp
is ignored and a malformed one is logged once.
Events and property objects keep their typed properties instead of
dropping them. PostEvent records an _UnlockTrophy event with an int32
_trophy_id for the user and service label of its context, logs why a
trophy event is ignored, and prints every posted event with
APS5_TRACE_UDS.
Yunus Shaikh