Working with SDL::Event and SDL::EventHandler

Will merge with Parrot's event system at some point
(That is, at some point after Parrot has a usable event system)
Subclass SDL::EventHandler:

.local pmc parent_class
.local pmc class_type
getclass parent_class, 'SDL::EventHandler'
subclass class_type, parent_class, 'MoveLogo::EventHandler'

Define methods for the events you want to handle:

.sub key_down_down method
	.param pmc event_args

	.local pmc screen 
	.local pmc sprite

	screen = event_args[ 'screen' ]
	sprite = event_args[ 'sprite' ]

	# change position, velocity, etc. here

.end

Create SDL::Event object, event handler object, and handler args hash
Call wait_event on event object with event handler and args:

	event.'wait_event'( event_handler, handler_args )