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Mr. Robotico pseudocode assignment assistance

Posted 20 September 2018 - 11:40 AM

A robot is sitting in a chair with its arms facing down.

Write an algorithm, using pseudocode, to make the robot:

stand up
walk forward until it senses a wall
turn around
walk back to the chair
sit down in its original starting position

Finally, output the total number of steps taken.

Commands
--------
In addition to our standard pseudocode commands,
you must also use the following robot control commands:

sit
stand
step (one step forward)
raise arms (parallel to floor)
lower arms (pointing to floor)
sense (only if arms are raised)
turn (90 degrees right)

Immediately after issuing a sense command,
you can check whether the robot is at the wall as follows:

if at wall
or alternatively
if not at wall

Assumptions
-----------
You must assume the following facts:

The robot's initial sitting position is directly facing the target wall.
There are no obstacles between the robot and the wall.
The wall is 1 or more exact steps from the chair.
The wall is sensed when it is less than 1 step from the robot's arms.
The length of the robot's arms are slightly less than the length of 1 step.

Your solution
-------------
Your solution must include all of the following:

Adequate comments
Initialization and use of at least one variable
Sequential flow of control
Conditional flow of control
Iterative flow of control
Handling of any special cases
Output of the total number of steps taken

Your pseudocode must conform to the course pseudocode guidelines.


Here's what I have so far and I don't know if this is entirely wrong or right. Did I meet all of the criteria or is this F material? :
#initializing variables 
#set stepsTaken to 0
#set currentSteps to 0

#testing special condition
stand
raise arms
sense
If not at wall
  currentSteps + 1
  repeat 2 times
  stepsTaken==currentSteps + 2
  stop
Else 
  print "Robot already at wall"
  print stepsTaken
  
#testing robot mobility and reporting total stepsTaken
while not at wall
  sense
  turn 90 degrees
  repeat turn
  currentSteps+1
  currentSteps==4
lower arms
sit
print currentSteps + stepsTaken
End Program

#output of stepsTaken should be 4 
#output for currentSteps should be 2 respectively
#special case

Attached File(s)


This post has been edited by modi123_1: 20 September 2018 - 11:41 AM


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