  jpmschweitzerandClaude Sonnet 4.6
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5f4139bc9e
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feat(simulation): implement economics integration sprint — #810 #821 #822 #823
Implements the full D-180/D-181 economics pipeline:
**#810 — Event input port (D-180)**
- Add EconEvent struct with Target/Effect/Duration/Visibility variants
- Implement EventPort as typed input queue for external disruptions
- Apply events in simulation step; D-179 Test 3 now uses real shock injection
**#821 — Integrate econ-sim into server tick loop**
- Extract econ-sim as library crate (lib.rs + sim.rs, Cargo.toml [lib] section)
- Add Simulation stateful runner; step() advances one economy tick
- Add EconSimResource, EconStateResource (7 D-181 signals), tick_economy_simulation
- Economy loads once at startup; graceful no-op when systems.db absent
- Server advances economy 1 tick per 10 game ticks (D-031)
**#822 — Expose economy state over IPC bridge**
- Protocol version 20 → 21
- Add EconomySnapshot, EconNodeSnapshot wire types
- Add EconStateQuery PlayerAction variant; response in economy_snapshot field
- Add EconQueryBuffer resource + serve_econ_state_query system
**#823 — Economics debug commands**
- Add InjectEconEvent, SetEconParam, GetEconState to DebugCommandKind
- Add EconDebugEffect, EconParamKind enums
- SetEconParam mutates α/β at runtime (α/β promoted to pub const + Simulation fields)
- ALPHA and BETA constants threaded through step_inner/trade_step signatures
All 1147 unit tests pass; zero warnings.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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2026-04-10 13:13:52 +02:00 |
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jpmschweitzerandClaude Sonnet 4.6
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fb87f933f5
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feat(simulation): add economics simulation binary with Layer 1+2 (#806, #807)
Adds tooling/econ-sim — a standalone Rust binary for the Phase 2 economics
simulation:
Layer 1 (Leontief production, #806):
- Deterministic per-run PRNG seeding of corp×site productivity (D-176)
- Fixed-coefficient production chains; scarcity cascades downstream (D-178)
- Per-capita population demand for finals and services
- Gate-energy demand reduction for fusion_fuel at connected nodes (D-186)
- Price adjustment via local tâtonnement
Layer 2 (spatial price equilibrium, #807):
- Damped tâtonnement trade flows along gate links (α=0.03, β=0.4, D-178)
- 8% transport cost per hop damps long-distance arbitrage
- Flows computed from pre-step snapshot; applied atomically
- --stability-check implements D-179 Tests 1 and 2:
· Test 1: cold-start convergence ±5% at tick 100 → PASS (max 1.05%)
· Test 2: long-run stability ±2% over ticks 900–999 → PASS (max 0.00%)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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2026-04-07 13:56:06 +02:00 |
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