https://hub.xpub.nl/chopchop/~aleevadh/maze/

Me and Thijs worked together on the first pen plotted maze prototype, directly by hand, first by drawing it, then by creating it on Inkscape. The idea was to create a game where two people during the pen plotter party could compete to see who could finish the maze first, on two different pen plotters.
The project then shifted to a plottable maze generator, mazes to be resolved by our guests directly using the pen plotter buttons and foolproof precision.
(still working on the hpgl file generator part)

Javascript

wow! Now the mazes can actually be resolved! magical!

let currentGrid;

const widthInput = document.getElementById('width');
const heightInput = document.getElementById('height');
const generateButton = document.getElementById('generate');
const canvas = document.getElementById('maze');
const ctx = canvas.getContext('2d');

html elements

const cellSize = 20;

size of each cell in the grid of the generated maze

class Cell {
   constructor(x, y) {
       this.x = x;
       this.y = y;
       this.walls = {top: true, right: true, bottom: true, left: true};
       this.visited = false;
   }
}

Cell object, x y coordinates

function createGrid(width, height) {
   const grid = [];
   for (let y = 0; y < height; y++) {
       const row = [];
       for (let x = 0; x < width; x++) {
           row.push(new Cell(x, y));
       }
       grid.push(row);
   }
   return grid;
}

with specified width and height creates a new cell object

function drawMaze(grid) {
   const width = grid[0].length;
   const height = grid.length;
   canvas.width = width * cellSize;
   canvas.height = height * cellSize;

   ctx.fillStyle = 'white';
   ctx.fillRect(0, 0, canvas.width, canvas.height);

   for (let y = 0; y < height; y++) {
       for (let x = 0; x < width; x++) {
           const cell = grid[y][x];

           ctx.strokeStyle = 'black';
           ctx.lineWidth = 2;

           if (cell.walls.top) {
               ctx.beginPath();
               ctx.moveTo(x * cellSize, y * cellSize);
               ctx.lineTo((x + 1) * cellSize, y * cellSize);
               ctx.stroke();
           }
       }
   }
}

starting ending point of the maze, drawing of walls

generateButton.addEventListener('click', () => {
   const width = parseInt(widthInput.value, 10);
   const height = parseInt(heightInput.value, 10);
   generateMaze(width, height);
});

add event listener to generate! button. It takes the chosen values of height and width, convert them into integers, creates generateMaze

generateMaze(parseInt(widthInput.value, 10), parseInt(heightInput.value, 10));
const exportButton = document.getElementById('save');

generate! Save

function printMaze() {
   window.print();
}

const printButton = document.getElementById('print');
printButton.addEventListener('click', printMaze);

printMaze event listener print button

I watched some tutorials and followed some examples to get this done:

https://medium.com/swlh/how-to-create-a-maze-with-javascript-36f3ad8eebc1
https://www.youtube.com/watch?v=RrpFqVBLlmI&ab_channel=TheB4XGuy
https://www.youtube.com/watch?v=EN733Aq4ynM&ab_channel=Devression
https://github.com/topics/maze-generator?l=javascript
https://www.youtube.com/watch?v=HyK_Q5rrcr4&ab_channel=TheCodingTrain