JSON

JSON Format For BTs in Behavior3JS

Tree Specification

Tree items:

• title: the tree title, useful for identification on editor and debug.
• description: the tree description, useful for identification on editor and debug.
• root: the root ID (preferably a string), must be a unique identifier.
• display:
  • camera_x: position X of the camera in canvas.
  • camera_y: position Y of the camera in canvas.
  • camera_z: zoom factor of the camera in canvas.
  • x: position X of the root block in the canvas.
  • y: position Y of the root block in the canvas.
• properties: object with <key, value> pairs.
• nodes: object with <key, value> pairs, where key must be the node ID, and value must be the node specification.

Example:

{
    "title"       : <String>,
    "description" : <String>,
    "root"        : <String(ID)>,
    "display"     : {
        "camera_x" : <Float>,
        "camera_y" : <Float>,
        "camera_z" : <Float>,
        "x"        : <Float>,
        "y"        : <Float>
    }
    "properties"  : {
        <String> : <String or Number>,
        ...
    },
    "nodes"       : {
        <String(ID)>: <Node Specification>,
        ...
    }
}

Node Specification

Node items:

• id: the node ID (preferably a string), must be a unique identifier.
• title: the node title, useful for identification on editor and debug.
• description: the node description, useful for identification on editor and debug.
• display:
  • x: position X of the block in the canvas.
  • y: position Y of the block in the canvas.
• children: an array of node IDs, only for composite nodes.
• child: a node ID, only for decorator nodes.
• parameters: object with <key, value> pairs. This is needed to specify obligatory parameters when loading trees from JSON.
• properties: object with <key, value> pairs.

Example:

{
    "id"          : <String(ID)>,
    "name"        : <String>,
    "title"       : <String>,
    "description" : <String>,
    "children"    : [<String(ID)>, ...], // Only for composites
    "child"       : <String(ID)>, // Only for decorators
    "display"     : {
        "x" : <Float>,
        "y" : <Float>,
    },
    "parameters"  : {
        <String> : <String or Number>,
        ...
    },
    "properties"  : {
        <String> : <String or Number>,
        ...
    }
}