Documentation

Learn how to use NodeCanvas

  1. Getting Started
    1. Framework Concepts
    2. The GraphOwner Component
    3. The "Self" Parameter
    4. BBParameters
    5. Visual Debugging
  2. The Editor
    1. Controls & Shortcuts
    2. Assigning Tasks
    3. Canvas Groups
  3. The Blackboard
    1. Data Binding Variables
    2. Blackboard Parenting
    3. Global Variables
    4. Dynamic Variables
    5. Network Sync
    6. Save & Load
  4. Tasks (Actions & Conditions)
    1. Tasks Included
    2. The Reflection Tasks
    3. Using Task Lists
    4. Creating Custom Tasks
    5. Using Task Attributes
    6. Using BBParameters in Tasks
    7. Creating Generic Tasks
    8. Using FixedUpdate and OnGUI
  5. Behaviour Trees
    1. BT Nodes Reference
    2. Reactive Evaluation
    3. Creating Custom BT Nodes
  6. State Machines (FSM)
    1. FSM Nodes Reference
    2. FSM Callbacks
    3. Creating Custom FSM Nodes
  7. Dialogue Trees
    1. Dialogue Tree Nodes Reference
  8. Mapping Sub Graph Variables
  9. Using Graph Events
  10. Using Signal Events
  11. Working with Custom Types
  12. Working with AOT Platforms
  13. Using the Graph Console
  14. Using the Graph Refactor
  15. Using the Graph Explorer
  16. JSON Import/Export
  17. Scripting
    1. Interfacing with your code
    2. GraphOwner API
    3. Blackboard API
    4. Runtime Instantiation Tips
    5. Creating a Behaviour in Code
    6. Creating Custom Object Drawers
    7. Appending Custom AutoConverters
  18. FlowCanvas Integration
    1. Behaviour Tree -> FlowScript
    2. FSM -> FlowScript
    3. Dialogue Tree -> FlowScript
    4. FlowCanvas -> NodeCanvas
    5. Using Tasks in FlowScripts
  19. Full API

Save & Load

A Blackboard can Save and Load its variables state in PlayerPrefs with ease. This means that you can possibly save the whole state of a Behaviour, or use it for any other purposes, like for example creating a save system. All variables of a blackboard are able to be saved and loaded in this specific way (in PlayPrefs), except UnityEngine Object references which are not possible to be saved/loaded into PlayerPrefs.

This can be done in code with these two simple methods.

string Save (string savekey)
Save the blackboard state in PlayerPrefs at the given saveKey. Returns the json string serialized.

bool Load (string saveKey)
Load the blackboard state previously saved in PlayerPrefs of the provided saveKey. Returns whether or not Load was successful.

Alternatively, you could also use the following methods to serialize/deserialize the blackboard variables to/from json and therefore use it with your own save system.

string Serialize (List<UnityEngine.Object> references, bool pretyJson = false)
Serialize the variables to json. Unity object references will be stored in the provided references list.

bool Deserialize (string json, List<UnityEngine.Object> references)
Deserialize the variables from the provided previously serialized json. Unity object references will be loaded from the provided references list.

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