Next Step

[PROgram52bc]

• Define an Accelerator class that can wrap a single animated property and change its rate dynamically. (e.g. to implement an AcceleratedLerpValue)
• Remove the speed attribute in AnimatedProperty, and move to child class explicitly.
• Define the AcceleratedValue using an internal velocity variable that is lerped.
• A standard way to set stopping condition for any AnimatedProperty, instead of using the infinite parameter.
• A standard way to concatenate multiple AnimatedProperty.
  • Perhaps define a trivial append_child_property method that simply concatenates two AnimatedProperty together. E.g. bouncing ball.
  • More complicated ones should be done by inheriting the existing AnimatedProperty and redefine a standard handler? Because it might be desirable to have access to the data in the previous animation. E.g. velocity.
• Define matrix interface
• have some helper functions to define a modified AnimatedProperty class on the fly.
• Migrate to a separate project handling frame data

[PROgram52bc]

Design

• have the __iter__ method yield a PropertyFrame which contains
  • access all registered properties, via the get_child_properties methods.
  • a get_frame_data method, which returns a serializable object
  • a reference to the original AnimatedProperty
• Redesign the inheritance interface
  • Base class should provide a register_child_property(name: str, property: iterable) method, which registers a child property.
    • If property is an AnimatedProperty, it is first itered, and then for each iteration, its value evaluated through calling its get_frame_data method.
    • if property is an iterable, for each iteration, its iterated value is used
    • if property is other types, then it stays constant for each iteration, unless any
  • Base class should provide a remove_child_property(name: str) method, which reverses the previous method. This can be used to remove objects that are no longer in the view.
  • Child class should define a single method get_frame_data, which accepts **kwargs which the base class AnimatedProperty calls with all registered child property at each iteration.
  • Base class should call next_frame in its __iter__ method, and handle StopIteration error.