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flame/packages/flame_behavior_tree/behavior_tree/README.md
Samyak Jain 380d6aa946 docs: Add AI assist badge to readme(s) (#3226) 
Added the AI assist badge to readme files. Currently, I've done it for
all packges for consistency, but if it is preferred to just have it in
the main flame package, plmk and I'll update the PR.
2024-07-19 09:05:57 +00:00

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flame

This package provides a simple and easy to use behavior tree API in pure dart.

Behavior tree is a very common way of implementing AI behavior in game and robotics. Using this, you can break-down a complex behavior of an in game AI, into multiple smaller nodes.

Features

  • Nodes
    • Composite
      • Sequence: Continues execution until one of the children fails.
      • Selector: Continues execution until one of the children succeeds.
    • Decorator
      • Inverter: Flips the status of the child node.
      • Limiter: Limits the number of ticks for child node.
    • Task
      • Task: Executes a given callback when ticked.
      • AsyncTask: Executes an async callback when ticked.
      • Condition: Checks a condition when ticked.

Getting started

Add this package to your dart project using,

dart pub add behavior_tree

Usage

  • Create a behavior tree.
final treeRoot = Sequence(
  children: [
    Condition(() => isHungry),
    Task(() => goToShop()),
    Task(() => buyFood()),
    Task(() => goToHome()),
    Task(() => eatFood()),
  ]
);
  • Tick the root node to update the tree.
final treeRoot = ...;
treeRoot.tick();