double key press / double tap

Scripting Issues
1

is there a way to register a double tap on the same button?

it doesn’t seem to be asked on the forums and i didn’t see it in the manual

well i might have searched the wrong terms on forum search function and missed out soem part in the manual…maybe, but i couldnt find any info on this

2

You can do this, but you have to write the code to do it yourself, for instance by checking globalClock.getFrameTime() each time you receive the button-press event, and checking to see if it is very close in time to the last time you received the same button-press event.

David

3

well thats saddening, so i have to set a time frame, like half a second

and within this time, if the key is down, and down again, it is detected as a double key press?

4

Yes, it’s easy to do. Something like this:

def handleKey(self):
    now = globalClock.getFrameTime()
    elapsed = now - self.lastKeyEvent
    self.lastKeyEvent = now
    if elapsed <= 0.5:
        self.handleDouble()
    else:
        self.handleSingle()

David

5

in the manual I see this code:

class ReadKeys(DirectObject.DirectObject):
  def __init__(self):
    self.accept('time-a-repeat', self.printRepeat)

  def printRepeat(self,a):
        print "repeat a",a

doesn’t that make the same work laperen asked for?

6

Repeat isn’t used for double-pressing. The repeat event is fired repeatedly if the button is held down.