Lightweight A* pathfinding with async grid scanning, Bezier path smoothing, dynamic obstacle support, and zero dependencies. Built for performance.PIPELINE SUPPORT• All render pipelines — this asset contains no shaders or rendering code.• Works with Built-in, URP, and HDRP.REQUIREMENTS• Unity 2022 LTS or higher• Physics system (uses Physics.CheckSphere for grid scanning and Physics.SphereCast for LOS)PLATFORMS• All platforms supported (Windows, macOS, Linux, iOS, Android, WebGL, consoles)AA Star PathFinder is a lightweight, high-performance A* pathfinding system designed for games that need fast, reliable navigation without the complexity of NavMesh. Drop it onto any GameObject, assign a target, and pathfinding starts automatically.Built with a production-grade architecture — asynchronous grid scanning means zero frame drops during initialization, even on large grids with 70,000+ nodes. Path smoothing with line-of-sight optimization and Bezier curves produces natural, organic movement that looks professional.Note: AI tools were only used to design the promotional store graphics to visually explain the package's concepts better, alongside actual Unity Editor screenshots.KEY FEATURES• A* Pathfinding — Optimized A* algorithm with 8-directional movement and diagonal cost handling.• Async Grid Scanning — Grid initializes in the background at 10,000 nodes per frame. No lag spikes, no loading screens.• Double-Buffered Grid — New grids build while the old grid stays active. Zero interruption during re-scanning.• Bezier Path Smoothing — Raw A* paths are smoothed with LOS optimization and configurable Bezier curves for natural movement.• Moving Target Support — Automatic path recomputation with configurable interval and distance threshold.• Obstacle Proximity Penalties — Agents naturally prefer paths that stay away from walls and obstacles.• Minimum Passage Width — Prevents agents from squeezing through gaps that are too narrow.• Dynamic Obstacles — Mark/unmark grid nodes as blocked at runtime via simple API.• Visibility-Aware Lookahead — SphereCast-based line-of-sight checks for intelligent path following.• Curvature Speed Control — Automatically slows agents in tight turns for realistic movement.• Demo Follower Included — Drop-in PathFollower component for immediate testing, with full API for custom integration.• Scene Debug Visualization — Grid, path, and guidance gizmos for easy debugging.• Algorithm: A* with 8-directional movement, diagonal corner cutting prevention• Grid: 2D grid with CheckSphere-based obstacle detection• Async Scanning: 10,000 nodes/frame default (configurable 1K-50K)• Path Smoothing: LOS optimization + Bezier curves (configurable segments 2-12)• Moving Targets: Configurable recompute interval (0.2s-3s) and distance threshold (1m-20m)• Obstacle Avoidance: Proximity penalties + hard-block erosion for minimum passage width• Height Support: Automatic raycast height snapping on final path• No NavMesh required• No third-party dependencies• All render pipelines supported (pipeline-independent — no shaders)• Minimum Unity Version: 2022.3 LTS• Platforms: All platforms supported (no compute shaders or platform-specific code)
