Pacman Simulator

This repository contains my answer to the coding challenge detailed in PROBLEM.md.

The examples listed in the problem document have been extracted to:

• ./pacman-scripts/Example-A.txt
• ./pacman-scripts/Example-B.txt
• ./pacman-scripts/Example-C.txt

The examples can be executed by running:

1. npm install
2. npm test

The examples are executed by the test cases in ./src/app.spec.ts.

Additional examples can be added to the robot-scripts directory. When doing so the ./src/app.spec.ts file will need to be updated to execute the additional examples.

About the Solution

The solution assumes it is a module to be used in another application. As such it doesn't provide a user interface.

Script Extension: Comments

Pacman Simulator scripts can contain comments. Lines beginning with a double forward slash // will be interpreted as a comment and ignored.

Script Errors

The Pacman Simulator will not run scripts with unknown commands or syntax errors. All errors will be reported by the application with a line number.

Invalid Place Commands

The Pacman Simulator will ignore any PLACE commands if the specified location is outside the bounds of the table.

Exploring the Source

The best place to start reading from might be the App.executeScript() function in ./src/app.ts.

The executeScript() function:

1. Reads the script.
2. Parses the script into an array of statements.
3. Checks for errors, returning a error message if found.
4. Processes the script, returning when a REPORT command is encountered.