Leonid PershinandClaude Fable 5 a395e58458
CI / build-test (push) Failing after 1m5s
Add MrGameEng.Pathfinding and MrGameEng.Collisions modules
Pathfinding (depends on Core only): GridPathfinder with A* (octile/
Manhattan heuristic), Dijkstra and BFS over a game-implemented
IPathGrid; 4/8 connectivity, diagonals never cut corners. FlowField +
FlowFieldBuilder (multi-source Dijkstra) give crowds O(1) steering per
agent per frame. All buffers are grid-sized once and invalidated by a
generation stamp - repeated queries allocate nothing and clear nothing.

Collisions (Graphics exception: Transform2D, RectF): Collider component
(circle/AABB, offset, two-way layer masks), CollisionWorld - a uniform
spatial hash on flat arrays rebuilt from scratch each tick (O(n) for
movers, zero alloc after warm-up, deterministic pair order), pair
collection, QueryAabb and closest-hit Raycast. scene.UseCollisions()
registers CollisionSystem after movement systems.

30 new tests (string-map mazes, cost weighting, corner cutting, flow
descent; pair/mask/query/raycast). Sample gains a PathfindingScene
('path' console command): click to set the goal, 250 agents follow the
flow field, the A* path is highlighted, colliding agents flash red.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-06-11 13:39:28 +03:00
2026-06-10 23:50:05 +00:00
2026-06-10 23:50:05 +00:00

mrgameeng

Cross-platform 2D game engine built on MonoGame 3.8.4 (DesktopGL) and Friflo.Engine.ECS — ECS-first, .NET 8, C#.

Developer documentation (Russian): docs/architecture.md, docs/roadmap.md.

License

MIT — see LICENSE.

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