Source Code for Script script-demo_scratchMyBot_py

 1  from joy import * 
 2   
 3 -class ScrMyBot(JoyApp): 
 4 -  def __init__(self): 
 5      JoyApp.__init__(self,scr={},robot=dict(count=1)) 
 6      self.gain = 100 
 7      self.limit = 5000 
 8     
 9 -  def onStart( self ): 
10      self.aNode = self.robot.values()[0] 
11       
12 -  def onEvent( self, evt ): 
13      if evt.type==SCRATCHUPDATE and evt.scr==0: 
14        if evt.var=='robotPos1': 
15          pos = evt.value * self.gain 
16          if pos>self.limit: pos = self.limit 
17          elif pos<-self.limit: pos = -self.limit 
18          self.aNode.set_pos( pos ) 
19      elif evt.type != TIMEREVENT: 
20        JoyApp.onEvent(self,evt) 
21         
22  if __name__=="__main__": 
23    print ''' 
24    DEMO: connecting Scratch sprite to robot 
25    ---------------------------------------- 
26     
27    When this program runs, the x position of the cat sprite on  
28    the screen controls a servo in the robot. 
29     
30    ''' 
31    smb = ScrMyBot() 
32    smb.run() 
33