jerrrrycho 4489dd7469 test(gfx): unit tests of the smoke of a vehicle taken off the tracks (#90) ...

The spawn count of the smoke source of a vehicle moves out of
smoke_source::update() into smoke::vehicle_spawn_count() (vehicle/smoke.h),
a free function on the mover state, which joins the core library so the
unit tests can call it the way the source does. The rates are the same as
before, the steady rate of the source still counted in before the share of
the engine.

Tests: tests/unit/test_smoke.cpp. A vehicle taken off the tracks spawns no
smoke and drops the pending particles, with the engine starting, idling or
under load; a road vehicle back from the pool puffs again; the engine adds
to the steady rate; the pending count stays within the room of the source.
Two of the four fail without the fix.

Checked again on td.scn with the SM42 driven into a portal: the smoke
source keeps puffing on the run and drops to 0 particles once the vehicle
is taken off the tracks.

2026-11-07 11:38:49 +01:00

18 KiB

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