Probably a Fire Hazard 🎄

Kata Description

Inspired by Advent of Code and kata-log.rocks/christmas-lights-kata

Incremental Kata - No Peeping Ahead!

➡️ This is an incremental kata to simulate a real business situation: work your way through the steps in order, but do not read the next requirement before you have finished your current one.

Background

Every year, your neighbours outshine you in the Christmas lights competition 😣 No wonder, all you have is a 50 x 25 grid of string lights. Luckily, this year a secret Santa sent you a special gift that is guaranteed to get you noticed this year by displaying festive forms and shapes. All you have to do is hang the lights and add the programs :)

Mission

Write a program to decipher Santa's instructions (see instructions.json) and display a series of festive shapes on your grid by turning on/off and toggling the light bulbs. instructions.json contains a single shape to be displayed on the grid. It is possible to extend the cata by iterating through the shapes contained in instructionsLightshow.json.

Requirements I

Lights in your grid are numbered from 0 to 49 horizontally and from 0 to 24 vertically. Santa's instructions include whether to turn on, turn off, or toggle various inclusive ranges given as coordinate pairs. Each coordinate pair represents opposite corners of a rectangle, inclusive; a coordinate pair like 0,0 through 2,2 therefore refers to 9 lights in a 3x3 square. The lights all start turned off.

Examples

• turn on 0,0 through 49,24 would turn on (or leave on) every light and translate into json as follows:

[ { "coords": [ [0, 0], [49, 24] ], "type": "on" }, ]

• toggle 0,0 through 49,0 would toggle the first line of 50 lights, turning off the ones that were on, and turning on the ones that were off.

• possible values for the "type" key are "on", "off" and "toggle"

Requirements II

You just finish implementing your winning light pattern when you realize you mistranslated Santa's message from Ancient Nordic Elvish. The light grid you bought actually has individual brightness controls; each light can have a brightness of zero or more. The lights all start at zero.

• The phrase turn on actually means that you should increase the brightness of those lights by 1.
• The phrase turn off actually means that you should decrease the brightness of those lights by 1, to a minimum of zero.
• The phrase toggle actually means that you should increase the brightness of those lights by 2.