make left stick not lift up arrow key

 when turn to most left or right, I think its called full overlap but this is better, there is not lifting up or down arrow key unless you go back to dead zone, from dead zone there is normal overlap, not round like a box threashold, -x x -y y, so from y to x (up/down to left/right) y threashold go to 0 or 1 not sure (middle, 127)

Author: noisecode3

fixes/raw_ps4/controller.py

@@ -129,11 +129,14 @@ def __init__(self, ui, threshold, output_key):
         self.ui = ui
         self.last_state = 0
         self.threshold = threshold
+        self.threshold_comp = 0
         self.output_key = output_key
 
     def handle(self, value):
         """Handle axis values."""
         tr1, tr2 = self.threshold
+        tr1 += self.threshold_comp
+        tr2 -= self.threshold_comp
         neg_key, pos_key = self.output_key
 
         if value < tr1:
@@ -158,10 +161,12 @@ def handle(self, value):
             if self.last_state == -1:
                 self.ui.write(e.EV_KEY, neg_key, 0)
                 self.last_state = 0
+                self.threshold_comp = 0
                 self.ui.syn()
             elif self.last_state == 1:
                 self.ui.write(e.EV_KEY, pos_key, 0)
                 self.last_state = 0
+                self.threshold_comp = 0
                 self.ui.syn()
 
 
@@ -193,6 +198,8 @@ def handle_event(self, event):
         """Handle the events."""
         if event.code == self.event_x:
             self.x_axis.handle(event.value)
+            if self.y_axis.last_state != 0:
+                self.y_axis.threshold_comp = abs(event.value-127)
         elif event.code == self.event_y:
             self.y_axis.handle(event.value)