Liminalia demographics census

liminalia

f8142fd — the city gets a census.

projection, not accumulation

Demographics.Take(world) walks the live citizens and returns a DemographicsReport. No per-tick bookkeeping, no save fields, no migration — the report is correct by construction because it reads the source of truth. At these population sizes (the flourishing milestone is 100+) the walk is trivial; the frontend can cache the record if it ever needs it per-frame.

the report

Six sections:

• Age bands — children (0-6), students (7-18), working age (19-64), retirees (65+), with the dependency ratio: dependents per working-age citizen. Above 1.0 the economy carries more dependents than workers.
• Employment — employed/unemployed with the rate, and the job mix. The mix shows institutional coverage: no Police means crime thrives, no Doctor means illness goes untreated.
• Education — level distribution. Shows whether the school investment is paying off into the skilled-job gates.
• Wealth — mean money and debt, the count below the poverty line (20, the crime pressure cutoff). The poverty count is the early-warning signal for the crime system.
• Health — ill and jailed counts. Both remove citizens from the productive economy.
• Reputation — mean standing, and the count below the police hiring gate (30). A city where nobody can be hired as police cannot recover from its crime problem.

The boundaries matter and are tested: 6 is a child, 7 a student; 18 a student, 19 working age; 64 working age, 65 a retiree.

CLI

demographics (or demo) prints the report as tables. The Godot UI can render the same record later.

367 tests.