Update planner_ctrl.py

fix points[star] index out

Author: geturin

src/planner_ctrl.py

@@ -54,7 +54,7 @@ def callback(data):
         pointnumber = len(data.points)
         if pointnumber <= 11:
             # waypoint_limt <= 9
-            star = pointnumber
+            star = pointnumber - 1
         else:
             # waypoint_limt = 2
             star = 0
@@ -159,4 +159,4 @@ def calibration(data):
             pass
 
 
-        rate.sleep()
+        rate.sleep()