Godot Environment Query Orchestrator (GEQO) is a node-based environment querying system for Godot 4.5+, inspired by Unreal Engine's EQS. It allows AI characters to evaluate the world around them and select the best position/node/item based on customizable generators and tests (e.g distance, visibility), made around contexts (Any node with a position value). It is implemented in C++ as a GDExtension for higher performance.

Documentation is available here.

Features

Node based environment queries

• Build queries in the scene tree by combining Generators (where to sample positions) and Tests (how to evaluate them), similar to Unreal's EQS workflow.

Visual debugging in 2D and 3D

• Debug queries at runtime by enabling use_debug_shapes in an EnvironmentQuery.
• Color-coded visualizations display the sampled points and their scores.

Written in C++ GDExtension with performance in mind.

• Implemented in C++, using PhysicsDirectSpaceState for fast queries on objects and areas.
• Time-sliced query processing, spreading the workload of each query across multiple frames to prevent lag spikes during gameplay.

Various built-in nodes to jump straight into designing.

• 4 contexts
• 4 generators
• 5 tests

Custom contexts and tests

Extend GEQO with custom logic using GDScript and C#.

For examples, see example custom scripts

Query Example

How to Use

For more information, see Quickstart

Connect signal, then request a query.

func _ready():
    $EnvironmentQuery3D.query_finished.connect(_on_query_finished)
    $EnvironmentQuery3D.request_query()

After the query finished, the signal is emitted and you can use the results.

func _on_query_finished(result: QueryResult3D):
    var best_position: Vector3 = result.get_highest_score_position()
    var best_node: Node = result.get_highest_score_node()
    # Use the results on your navigation implementation
    navigate_to(best_position)

You can also use await to wait until the query is over and access the result.

$EnvironmentQuery3D.request_query()
await $EnvironmentQuery3D.query_finished
var query_result: QueryResult3D = $EnvironmentQuery3D.get_result()
var best_position: Vector3 = query_result.get_highest_score_position()