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Changelog

All notable changes to GTNav 2D are listed here. Versions follow Semantic Versioning: a minor version adds features without breaking existing projects, a major version may require changes on your side (they are listed under Upgrading).

[1.0.0] - 2026-10-09

First release.

Tilemap baking into a navigation graph: a ground Tilemap plus optional one-way platform and ladder Tilemaps.
Shared jump model: every jump, fall and drop-through is validated by a step-by-step simulation that matches Rigidbody2D, and agents replay exactly the trajectory that was baked.
Steered jumps (rise straight up, then move sideways) for narrow pits, low ceilings and ledges overhead; long jumps take off from the edge of a platform.
Movement Profiles: jump height and time to apex, move and air speed, body size, one-way platforms, ladder climbing. Links are baked per profile over shared nodes.
Slopes (45° and 1:2), detected from sprite physics shapes or set with NavTileTypes.
Ladders, including ladders through one-way platforms.
Moving platforms (MovingPlatform2D, or your own IMovingPlatform): agents wait at docks, ride, choose where to get off, and drop onto platforms from above.
A* with a binary heap and per-query buffers; several graphs per scene.
Baking to a NavGraphData asset in the editor, and background rebaking at runtime (NavGraph2D.BakeAsync) for destructible terrain.

Agents and enemies

NavAgent2D drives a Rigidbody2D along paths; INavAgent lets behaviours drive your own controller.
GroundChaser: patrols, chases across platforms, melee attacks.
JumpAmbusher: keeps its distance and leaps onto the target.
RangedShooter with Projectile2D: straight or lobbed shots over cover, optional lead aiming, retreats when the target gets close.
FlyingChaser with FlyingAgent2D: flies around terrain, hovers, dives; two cover modes (approach low, wait nearby).
Knockback (ApplyKnockback) and stun (Stun) for every enemy; attacks raise events only, so any health system works.
EnemyStateFlash: optional wind-up, attack and stun telegraph.

Editor and samples

GameObject > GTNav 2D menu items for the graph, every enemy type, a plain agent and a moving platform, with ready-made presets.
Scene view drawing of nodes, links and trajectories, with a path test (Shift + Click, Ctrl + Click).
A main demo and nine feature scenes (basics, profiles, slopes and one-way platforms, ladders, moving platforms, flying, combat, runtime baking, ranged). The demo works with the Input System package or the legacy Input Manager.
Unity 2022.3 LTS and Unity 6.

Known limitations

Agents plan jumps with at most one turn in the air; moves that need steering several times mid-air are not planned. See Movement Profiles.
Terrain must be made of Tilemaps.