register_closure
Description:
Closure variant of register_func.
Note:
There is no direct replacement for this function.
Use set_progress_func on each specific Timeline instance
Registers a global alpha function and returns its logical id to be used by set_mode or by Animation.
The logical id is always greater than ANIMATION_LAST.
Parameters:
closure |
a Closure |
Returns:
the logical id of the alpha function |