Rijad Zuzo
117 lines
6.1 KiB
Markdown
117 lines
6.1 KiB
Markdown
# The Steward — Architecture Overview
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This project is organized around gameplay ownership, not scene-tree location.
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Serializable simulation records are authoritative; loaded Godot nodes present
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that state and contribute active-world facts such as positions and navigation
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results.
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## Runtime flow
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```text
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SimulationClock
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-> SimulationManager orchestrates one deterministic tick
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-> ActionExecutionSystem advances needs and work
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-> ActionSelectionSystem chooses an action
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-> ActionTargetResolver resolves a stable target ID
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-> VillageEconomy performs inventory/storage transactions
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-> SimulationEventLog records completed facts
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-> EventKnowledgeSystem records, ranks, transfers, and retains bounded knowledge
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-> RelationshipSystem applies evidence-gated social consequences
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-> FoodShortageOpportunitySystem projects one known unresolved need
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-> WorldViewManager presents travel and NPC state
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-> ActiveWorldAdapter supplies loaded-world positions/capacity
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-> NpcVisual performs local navigation, animation, and transient reactions
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```
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`SimulationManager` is the scene-tree façade for the simulation. It owns the
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tick lifecycle, authoritative NPC/village/resource records, reservations, and
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the signals consumed by presentation. Focused collaborators own rules that
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would otherwise obscure that lifecycle:
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- `simulation/actions/` owns selection, progress, and target resolution;
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- `simulation/economy/VillageEconomy.gd` owns storage/inventory transactions
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and keeps village resource summaries synchronized;
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- `simulation/events/SimulationEventLog.gd` owns ordered event identity,
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history queries, and rate calculations;
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- `simulation/knowledge/EventKnowledgeSystem.gd` owns per-NPC references to
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known objective events, immutable acquisition provenance, proximity witnesses
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at record time, one-hop direct fact transfer, and deterministic recent-fact
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retention/importance ranking;
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- `simulation/relationships/RelationshipSystem.gd` owns directed relationship
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queries, event-driven trust changes, and deterministic social tie-breaking;
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- `simulation/opportunities/FoodShortageOpportunitySystem.gd` observes
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immutable event references plus current pantry/NPC state, then owns the
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bounded open/resolved pantry-restock lifecycle without changing resources or
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assigning tasks;
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- `simulation/persistence/` owns save-slot file safety;
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- `simulation/state/` owns versioned serialized record contracts;
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- `simulation/definitions/` owns stable IDs and immutable action/profession
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definitions.
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The manager deliberately remains a façade instead of being split into a
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collection of scene-tree manager nodes. A new collaborator is justified when
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one cohesive rule set has several real consumers or makes the tick lifecycle
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hard to read.
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## Folder ownership
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| Path | Responsibility |
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| --- | --- |
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| `simulation/` | Headless-capable orchestration and core models |
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| `simulation/actions/` | Action decisions, execution, and target queries |
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| `simulation/economy/` | Authoritative inventory and storage transactions |
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| `simulation/events/` | Immutable event history and derived event queries |
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| `simulation/knowledge/` | Per-NPC knowledge of objective event IDs |
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| `simulation/relationships/` | Directed social consequences and relationship queries |
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| `simulation/opportunities/` | Knowledge-gated unresolved-condition projections |
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| `simulation/state/` | Versioned, serializable mutable records |
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| `simulation/definitions/` | Stable IDs and immutable gameplay definitions |
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| `simulation/persistence/` | Validated local save-file storage |
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| `world/` | Loaded-world interaction geometry and presentation adapters |
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| `world/resource_nodes/` | Finite resource presentation bound by stable ID |
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| `world/storage/` | Storage interaction geometry, never stored quantities |
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| `world/activity/` | Rest/study/patrol interaction sites and capacity facts |
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| `player/` | Player input, camera, and active NPC presentation |
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| `tests/` | Deterministic headless gameplay scenarios |
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Top-level core model scripts keep their stable paths because Godot's global
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class cache records `class_name` locations. Moving them solely for cosmetic
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nesting can break editor and headless startup for existing workspaces without
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improving ownership.
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## Dependency rules
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- Simulation code must run without `main.tscn` or loaded world nodes.
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- Persistent references are stable IDs, never `Node`, `NodePath`, or scene
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ownership.
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- Presentation may report facts and submit commands; it does not choose NPC
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actions or own resource, storage, inventory, event, knowledge, relationship,
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opportunity, or reservation state.
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- Inspector history is a read-only façade query over objective events and
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retained knowledge. Opportunity presentation is likewise query-only.
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Relationship cues consume state-change signals and are intentionally absent
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from saves and checksums.
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- Resource changes go through `ResourceStateRecord`, NPC inventory, and
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`VillageEconomy`; `village.food` and `village.wood` are synchronized views.
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- New mutable features define serialization and deterministic continuation at
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the same time as their first gameplay use. Cross-record causes use stable
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event IDs rather than object references or prose.
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- Opportunity records reference stable NPC, storage, resource, trigger-event,
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and resolution-event IDs. Their generator may observe authoritative state
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and history, but it does not mutate the economy or command NPC behavior.
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- Prefer one tested vertical behavior over a generic framework with no proven
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consumers.
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## Where new code goes
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Put a rule beside the state it governs. A relationship consequence belongs in
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a focused simulation system plus serialized relationship records; its icon or
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animation belongs in presentation. Add a world node only when the behavior
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needs loaded-world geometry. Add a stable ID or definition when content must be
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referenced across saves, scenes, or unloaded simulation.
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The architectural decision and detailed contracts live in
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[ADR 0001](decisions/0001-simulation-authority-boundary.md),
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[the action system architecture](ACTION_SYSTEM_ARCHITECTURE.md), and
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[the simulation state schema](SIMULATION_STATE_SCHEMA.md).
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