fix logging of height

examples/autopilot.jl

@@ -187,7 +187,7 @@ function simulate(integrator, stopped=true)
             #
             t_sim = @elapsed KiteModels.next_step!(app.kps4, integrator; set_speed=v_ro, dt=app.dt)
             sys_state.orient .= calc_orient_quat(app.kps4)
-            update_sys_state!(sys_state, app.kps4)
+            sys_state=SysState(app.kps4)
             acc = (app.kps4.vel_kite - last_vel)/app.dt
             last_vel = deepcopy(app.kps4.vel_kite)
 
@@ -283,6 +283,7 @@ function simulate(integrator, stopped=true)
 end
 
 function play(stopped=false)
+    global flight_log
     while isopen(app.viewer.fig.scene)
         if ! app.initialized
             init(app)
@@ -300,6 +301,7 @@ function play(stopped=false)
             if app.set.log_level > 0
                 println("Saving log... $(app.logger.index)")
             end
+            flight_log = KiteUtils.sys_log(app.logger)
             save_log(app.logger, basename(DEFAULT_LOG); path=dirname(DEFAULT_LOG))
         end
         if @isdefined __PRECOMPILE__