• derived nodes inherit all messages from their base classes
  
• see reset method for default settings
  
• this node can also be implemented with a timer node
  

constructor flipbook

destructor ~flipbook

method reset

1 set active to false
2 reset first frame flag
3 set duration to 1.0

method message

1 set the duration of the sequence
2 set active mode
3 turn on
4 turn off
5 start the sequence
6 stop the sequence

method start

1 if not active

1.1 set active to true
1.2 set start time

method stop

1 if active then set active to false

method app

1 if first frame then select first item
2 if active

2.1 divide elapsed time by duration
2.2 convert to integer
2.3 set selector