Monitors

Monitors are Scratch’s way of displaying data. 

{
  "id": "<var-or-list-id>",  
  "mode": "<default/large/slider/list>",  
  "opcode": "<data_variable/data_listcontents>",  
  "params": {  
    "VARIABLE": "<variable-name>"  
  },  
  "spriteName": "<owner-sprite-name>",  
  "value": 0,  
  "x": 0,  
  "y": 0,  
  "width": 0,  
  "height": 0,  
  "visible": true,  
  "sliderMin": 0,  
  "sliderMax": 100,  
  "isDiscrete": true  
}

id

Unique ID of the variable/list being displayed (monitored)

mode

Mode for displaying data in the monitor. This can have the following values:

• For variables:
  • default
  • large
  • slider
• For lists:
  • list

opcode

The opcode for monitors correspond to their data type:

• For variables:
  • data_variable
• For lists:
  • data_listcontents

params

• VARIABLE: it is the display name of the variable/list being displayed

[!note] This actually does NOT need to match the variable name, this in theory could be any string. It will be displayed as, name: var [] where it takes the place of var

• If you are displaying a list, write LIST, and VARIABLE if it is a variable display

spriteName

The name of the sprite the monitor belongs to (if applicable)

[!note] This actually does NOT need to match the sprite (if applicable), this in theory could be any string. It will be displayed as, name: var [] where it takes the place of name

value

The current value of the monitor (being displayed)

x, y

The x and y coordinates of the monitor being displayed

width, height

The width and height of the monitor

visible

Set to true or false to denote it appearing on screen or not

sliderMin

The minimum bound for slider monitors ONLY

sliderMax

The maximum bound for slider monitors ONLY

isDiscrete

Whether or not a slider should allow decimals when sliding, or snap to whole number integers for slider monitors ONLY