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> Making Interactive Experiences > Artificial Intelligence > Environment Query System > Environment Query System Node Reference

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Environment Query System Node Reference

Environment Query System Node Reference page.

An Environment Query is made up of many different pieces. You must call an Environment Query from a Behavior Tree, and then the actual Environment Query will use its Generator, reference its Contexts, and use its Tests to give the Behavior Tree the highest weighted result.


Node Type	Description
Generator	Produces the locations or Actors, referred to as Items, that will be tested and weighted.
Contexts	Provides a frame of reference for the various Tests and Generators.
Tests	Establishes how the Environment Query decides which Item from the Generator is the best option.

Please refer to the links below for additional information on each subject.

EQS Node Reference: Generators

Describes how Generators are used within the EQS system.

EQS Node Reference: Contexts

Describes how Contexts are used within Tests and Generators in the EQS system.

EQS Node Reference: Tests

Describes how to use Tests within EQS to generate the "best" option.