Warning: The Mathematics Development Engine Extension should be enabled before any behaviors are imported! Otherwise, you may see errors about "missing blocks".

Warning: Internally, variables names are preceeded by an underscore. (e.g. "Expression" would be represented as "_Expression" internally). When certain attributes (such as "Targets") requires listing a variable name, the underscore should be included. Global variables do not need underscores.

As a quick rule of thumb, whenever you need to type the name of a variable anywhere, use the internal name--that is, precede with an underscore.

2D Graph Output Behavior
Actor will generate a 2D graph of a single-variable function, printed in a specified region.

Notable Variables

Independent Variable	e.g. x
Expression	The right-hand side ofthe equation, following y=
Draw on Creation	The graph will be drawn when the actor is created, rather than on event call

Events

Activate	Shows the graph (actor is active by default)
Deactivate	Hides the graph
DrawGraph	Generate and display the graph. Event must be called if Expression has been changed.

Basic Input Field Behavior
Actor generates an input field, displayed in a specified region.

Notable Variables

_Contents	Stored value of the input field
Acceptable characters	Characters the input field will accept, separated by commas
Use Alphabet...	If checked, will include the standard alphabet as acceptable characters
Fixed Text	Text that is always displayed, but not part of the contents
Targets	Variables the input field will submit values to. Variables should be listed as ID.behavior.variable
Event Trigger	Events should be listed in the form event|unique id. Each listed event will be triggered in all behaviors for all actors with specified Unique Id.

Events

Activate	Enables and displays the input field (actor is active by default)
Deactivate	Hides the input field
SendContents	For every varaible in Targets, replace its value with _Contents. Events listed in Event Trigger will be called.

Button Input Behavior
When attached to a button, provides functionality to submit values to specified variables.

Notable Variables

Targets	Variables the button will submit values to. Variables should be listed as ID.behavior.variable
Value	The value to be submitted
Value is a Variable	The specified value is the name of a variable
Send on Click	If checked, SendContents event will be called when button is pushed
Append	If checked, Value will be appended to the specified (text) variable

Events

SendContents

For every varaible in Targets, replace its value with _Contents. Events listed in Event Trigger will be called.

Calculator Output Behavior
Actor will generate a text box in a specified region, into which calculator outputs are fed.

Notable Variables

NewInput

Holds an expression to be evaluated.

Events

Activate	Shows the output (actor is active by default)
Deactivate	Hides the output
Calculate	Evaluates the expression stored in NewInput, and copies the input and output to the display

Click and Drag
Allows the attached actor to be dragged by the mouse pointer.

Fixed Image Display
Actor will generate a 2D image inside a specified region.

Notable Variables

Image File	Name of image file. Image should be placed in /extras folder.
Image File is URL	If checked, the specified file is a URL. The image will be downloaded and displayed.

Events

Activate	Shows the image (actor is active by default)
Deactivate	Hides the image

Hide Actor
Hides the actor this behavior is attached to. This behavior is typically attached to "generator" actors--actors which generate graphs, input fields, etc.

Input Palette Generator Behavior
Actor will generate a numerical input palette in a specified region.

Notable Variables

Targets	Variables the button will submit values to. Variables should be listed as ID.behavior.variable
Event Trigger	This event will be triggered in all behaviors for the attached actor when the submit button is clicked

Events

Activate	Shows the palette (actor is active by default)
Deactivate	Hides the palette

Label Behavior
Actor will generate a label, displayed in a specified region. The label displays text, but no user input. This behavior is a general-purpose text display behavior.

Notable Variables

Contents	Text that the label displays
Contents Type	The type of contents that the label contains. Options are: Literal Label displays the Contents variable verbatim URL Label will visit the URL specified in the Contents variable, and display the page Local Label will read the file specified in the Contents variable, and display the text
Open URL on Click	If checked, user's web browser will open when the label is clicked
URL	If Open URL on Click is checked, specifies the URL to visit
Word Wrap	Automatically wraps text to the next line
Auto Update	If checked, display will update when Contents is changed. If not checked, Initialize event must be called.

Events

Activate	Shows the label (actor is active by default)
Deactivate	Hides the label
Initialize	Initializes (or re-initializes) the label

List Based Graph Output Behavior
Actor will generate a list-based graph of a set of data points, printed in a specified region.

Notable Variables

Initial Data Points

List of coordinates in form x,y

Events

Activate	Shows the graph (actor is active by default)
Deactivate	Hides the graph

Navigate on Event
Switches to a specified scene when Navigate event is called.

Events

Navigate

Switch to the specified scene

Navigate Button Behavior
Attaches to a button actor; switches to a specified scene when the button is pushed.
Note: This behavior listens for user input (mouse, or touch). The ButtonPush event is called when the user clicks the button.

Events

Activate	Shows the button (actor is active by default)
Deactivate	Hides the button
ButtonPush	Switch to the specified scene

Polynomial Input Field Behavior

Deprecated. This behavior is used by a few of the older actors in the Actor Library. Basic Input Field Behavior should be used, instead.

Push Button Behavior
Attaches to a button actor and listens for user input (mouse, or touch). When the button has been pushed, behavior will trigger a list of specified events.

Notable Variables

Event Trigger

Events should be listed in the form event|unique id. Each listed event will be triggered in all behaviors for all actors with specified Unique Id.

Events

Activate	Shows the button (actor is active by default)
Deactivate	Hides the button
ButtonPush	Trigger the events specified in Event Trigger

Response Recorder
Stores data in specified global variables. The data will be retrieved from a specified actor.

Notable Variables

Target Actor	The actor to listen to for data
Behavior	The actor's behavior to listen to for data
Variable	The variable to retrieve data from
Storage Variable	The global variable to store data in
Restriction	A global boolean variable that will be set to true when a value is stored in Storage Variable. When a response has been recorded, further requests for storage will be ignored.

Events

Record

Performs the value storage action

Scrollbar Behavior
Actor will generate a scrollbar in a specified region.

Events

Activate	Shows the scrollbar (actor is active by default)
Deactivate	Hides the scrollbar

Simple Image Display
Actor will generate an image, displayed in a specified region.

Notable Variables

Image File	The image to display
Image File is URL	If checked, Image File refers to a URL. The image will be downloaded and displayed

Events

Activate	Shows the image (actor is active by default)
Deactivate	Hides the image
LoadImage	Loads the image into memory
LoadInstance	Displays the image

Simple Push Button Behavior
Attaches to a button actor and listens for user input (mouse, or touch). When the button has been pushed, behavior will trigger a list of specified events. Events are limited to behaviors attached to the same actor.

Note: Push Button Behavior is a more general, flexible behavior.

Notable Variables

Event Trigger

Events should be listed, separated by commas. Each listed event will be triggered in all behaviors for the actor attached to this behavior.

Events

Activate	Shows the button (actor is active by default)
Deactivate	Hides the button
ButtonPush	Trigger the events specified in Event Trigger

Unique Identifier
Gives the actor a specified, unique name. This behavior is required by many of the other behaviors which use a Targets variable.

Cannonball Behavior
Provides the functionality for the cannonball in the physics demonstration.

Cannon Behavior
Provides the functionality for the cannon in the physics demonstration.

Golf Ball Behavior
Provides the functionality for the golf ball in the physics demonstration.

Golfer Behavior
Provides the functionality for the golfer in the physics demonstration.