Robot

Description

Robot simulator script. It accepts a list of commands in a file and produces output if needed.

Available commands are:

• PLACE: accepts 3 comma separated arguments, x position, y position and direction, that the robot should be facing
• LEFT and RIGHT: change direction, that the robot is facing
• MOVE: moves the robot 1 unit forward in direction it's currently facing
• REPORT: prints current position

The table is rectangular 5 units wide. x and y are 0 based. direction can be one of NORTH, EAST, SOUTH and WEST. Any command, that would put the robot outside the table, is ignored. Any commands, that are executed before the first PLACE commands, are ignored as well.

Usage

$ robot commands.txt
0,1,NORTH

Example Input and Output

• Example 1

  PLACE 0,0,NORTH
  MOVE
  REPORT
  

  Output: 0,1,NORTH

• Example 2

  PLACE 0,0,NORTH
  LEFT
  REPORT
  

  Output: 0,0,WEST

• Example 3

  PLACE 1,2,EAST
  MOVE
  MOVE
  LEFT
  MOVE
  REPORT
  

  Output: 3,3,NORTH

Development

Docker development environment