Interactive miniature town where typed commands change the world

# Build an Interactive World Model Playground Build a complete, working browser experience called **Small World**. It is a beautifully rendered miniature town that people can change through natural language and direct interaction. The world responds through connected systems: pedestrians, traffic, weather, destinations, water, and lighting. The central experience: **Change one thing. Watch everything react.** Act as the product designer, creative coder, simulation engineer, and art director. Make implementation decisions independently within the constraints below. Implement the experience in the current environment. This is a request for functioning software, not a proposal, mockup, video, or implementation plan. ## 1. The creative premise Imagine a meticulously designed architectural model that has come alive. Tiny people have destinations. Cars travel between neighborhoods. A river passes through town. Bridges connect its banks. People visit the park and gather in the square. Then the user types: > “Start a festival in the park.” A small stage and lights appear. People change destinations and begin converging on the park. Nearby paths become busier. The user continues: > “Now make it rain.” Cloud shadows move across the town. Rain begins. Umbrellas appear. Festival visitors leave exposed areas and walk toward reachable shelters. Then: > “Close the north bridge.” Barriers appear. Approaching vehicles stop and choose another route. Pedestrians change their paths. The longer crossing becomes busier. **These are not separate visual effects. They are consequences unfolding inside the same persistent world.** That connected behavior is the product. The experience should be compelling as a silent screen recording, but remain genuinely interactive when someone uses it themselves. ## 2. Priorities and scope Build one small, exceptionally polished world rather than a sprawling, incomplete city builder. Prioritize, in this order: 1. A visually distinctive, living miniature. 2. Real, legible cause and effect. 3. Reliable language commands and direct interaction. 4. Smooth motion and immediate feedback. 5. A reproducible showcase sequence. The required scope is one town and the six interventions described below. Do not add accounts, multiplayer, a large procedural map generator, economic systems, extensive dashboards, or a general-purpose construction editor. The town should feel like a carefully composed physical diorama, not a generic low-poly asset pack. Create a compact landscape with: - A river separating two neighborhoods. - Two bridges, with visibly different alternative routes. - Approximately 12–20 buildings with varied silhouettes. - A park, a small market square, and a riverside parking lot.