fixed rosbag name and auto-takeoff for optimization

buzz_scripts/testLJ.bzz

@@ -24,6 +24,7 @@ function init() {
 
     # Starting state: TURNEDOFF to wait for user input.
 	BVMSTATE = "TURNEDOFF"
+	TAKEOFF_COUNTER = 20
 }
 
 # Executed at each time step.
@@ -50,6 +51,16 @@ function step() {
 	statef()
 
 	log("Current state: ", BVMSTATE)
+
+	# Auto-takeoff (delayed for simulator boot)
+	if(id == 0) {
+		if(TAKEOFF_COUNTER>0)
+			TAKEOFF_COUNTER = TAKEOFF_COUNTER - 1
+		else if(TAKEOFF_COUNTER == 0) {
+			BVMSTATE="LAUNCH"
+			TAKEOFF_COUNTER = -1
+		}
+	}
 }
  
 # Executed once when the robot (or the simulator) is reset.