Design Procedural Generation

Architect deterministic, replayable procedural generation pipelines that combine isolated PRNG seed streams, coherent noise fields, cellular automata smoothing, and validated dungeon graph topologies.

Core Rules

• Strict Seed & Stream Isolation: Never call global unseeded random functions (Math.random(), global rand()). Instantiate isolated deterministic PRNG streams (PCG32, SplitMix64, Xoshiro256**) per subsystem (e.g. terrain_rng, dungeon_rng, loot_rng) derived from a master seed so cosmetic particle rolls never alter level layout.
• Playability & Connectivity Guarantees: Every generated map or dungeon must pass an automated flood-fill or A* reachability check verifying that entrances, key objectives, and exits form a fully connected, traversable graph.
• Zero Main-Thread Stalls: Execute heavy procedural generation, mesh synthesis, and tilemap baking on background worker threads or across time-sliced coroutines during loading transitions.
• Contract Adherence: Emit contracts/schemas/implementation-result.json upon completing procedural generation implementations.

Suggested Process

1. Hierarchical Seed Derivation

Hash the user-facing master seed string into subsystem sub-seeds (seed_layout, seed_biomes, seed_encounters, seed_loot). Record the master seed and generator version in save files and replay logs for instant reproduction of edge-case layouts.