Requirements

• PHP 5.6
• Composer
• Install Composer first globally

Setup

    composer install

Running the app

    php -f Console.php

or alternatively:

    ./Console.php

Commands

1. I M N. Create a new M x N image with all pixels coloured white (O).
2. C. Clears the table, setting all pixels to white (O).
3. L X Y C. Colours the pixel (X,Y) with colour C.
4. V X Y1 Y2 C. Draw a vertical segment of colour C in column X between rows Y1 and Y2 (inclusive).
5. H X1 X2 Y C. Draw a horizontal segment of colour C in row Y between columns X1 and X2 (inclusive).
6. F X Y C. Fill the region R with the colour C. R is defined as:
   Pixel (X,Y) belongs to R. Any other pixel which is the same colour as (X,Y) and shares a common side with any pixel in R also belongs to this region.
7. S. Show the contents of the current image
8. X. Terminate the session
9. ?. Show list of commands

Running tests

    composer test