structural-physics

Stability validation for Three.js building games checks structural integrity by evaluating how pieces connect and support each other. Instantiate the validator from the provided scripts, add your building pieces, and call stability checks during placement and gameplay updates to determine if structures remain standing or collapse.

Arcade mode uses quick connectivity checks for fast gameplay; heuristic mode applies stability percentages based on connection patterns; realistic mode simulates physics-based damage with cascading collapse. Choose arcade for speed, heuristic for balance, or realistic for dramatic, controlled failures in Fortnite/Rust/Valheim-style games.

Yes, the damage system handles damage propagation and cascading collapse across connected pieces. Define material resistance models, apply damage states and types, and the system automatically triggers cascading failures when structures exceed damage thresholds or lose critical support.

Material presets are built into the system for common building scenarios, but you can define custom material resistance models for your game's pieces. The damage module applies these models during stability recalculation to determine how pieces respond to damage and collapse.

Hook the validator and damage system into your update loop by calling stability recalculation after structure changes and damage events. The system returns state changes and collapse triggers that you feed back into your rendering and physics to animate failures and updates.