The ActivityBase class is the abstract base class for all emitter activities
in the Flint library. It implements the Activity interface with a default
priority of zero and empty methods for the rest of the interface.
Instances of the ActivityBase class should not be directly created
because the ActivityBase class itself simply implements the Activity
interface with default methods that do nothing.
Developers creating custom activities may either extend the ActivityBase
class or implement the Activity interface directly. Classes that extend the
ActivityBase class need only to implement their own functionality for the
methods they want to use, leaving other methods with their default empty
implementations.
protected var _priority:int = 0priority:int
Returns a default priority of 0 for this activity. Derived classes
override this method if they want a different default priority.
Implementation public function get priority():int public function set priority(value:int):voidSee also
org.flintparticles.common.actions.Activity.getDefaultPriority()
public function ActivityBase()
The constructor creates an ActivityBase object. But you shouldn't use it
directly because the ActivityBase class is abstract.
public function addedToEmitter(emitter:Emitter):void
This method does nothing. Some derived classes override this method
to perform actions when the activity is added to an emitter.
Parameters
| emitter:Emitter — The Emitter that the Activity was added to.
|
See also
org.flintparticles.common.actions.Activity.addedToEmitter()
public function initialize(emitter:Emitter):void
This method does nothing. Derived classes override this method
to alter the state of the emitter when it starts.
Parameters
See also
org.flintparticles.common.actions.Activity.initialize()
public function removedFromEmitter(emitter:Emitter):void
This method does nothing. Some derived classes override this method
to perform actions when the activity is removed from the emitter.
Parameters
| emitter:Emitter — The Emitter that the Action was removed from.
|
See also
org.flintparticles.common.actions.Activity.removedFromEmitter()
public function update(emitter:Emitter, time:Number):void
This method does nothing. Derived classes override this method
to alter the state of the emitter every frame.
Parameters
| emitter:Emitter — The Emitter.
|
| |
| time:Number — The duration of the frame - used for time based updates.
|
See also
org.flintparticles.common.actions.Activity.update()
Sun Oct 16 2011, 10:58 PM +01:00 
Object