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minesweeper's Introduction

Minesweeper using the Recursion Algorithm

A simplified game of minesweeper using vanilla JavaScript

In this walkthrough, I show you how to build Minesweeper in pure JavaScript, HTML, and CSS.

This walkthrough was such a fun one to make as I really enjoyed explaining recursion with the help of a south-park-esque cat.

If you have ever wondered what recursion was, this video is perfect for you! Watch it here

In addition to this, we will also be practising using inbuilt methods such as:

  • addEventListener()
  • setAttribute()
  • fill()
  • setInterval()
  • some()
  • every()
  • forEach()
  • includes()
  • contains()
  • add()
  • remove()
  • createElement()
  • appendChild()
  • push()
  • Array()
  • continue

And many more.

If you liked this game please do Subscribe, Comment and Like - it will help me create more games in the future!

I would love to see your finished game to please do tag me on YouTube, Twitter (@ania_kubow) or Instagram (@aniakubow) :)

#minesweeper #javscript_game

MIT Licence

Copyright (c) 2020 Ania Kubow

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

*Translation: Ofcourse you can use this for you project! Just make sure to say where you got this from :)

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

minesweeper's People

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minesweeper's Issues

Performance issue

Am I the only one having performance issue?
Once the recursion is triggered, everything slows down... Like a lot.
Is this code scalable to bigger grid?

Off by one error on app.js, line 54 & 152

The code-block containing the line 152 is as follows:

if (currentId < 89) {
        const newId = squares[parseInt(currentId) +width].id
        //const newId = parseInt(currentId) +width   ....refactor
        const newSquare = document.getElementById(newId)
        click(newSquare)
      }

As it stands, if we were to click square #89, then the very last square in the grid, #99, would not be run through the click function.

We should instead check for currentId < 90 to avoid this off by one error:

if (currentId < 90) {
        const newId = squares[parseInt(currentId) +width].id
        //const newId = parseInt(currentId) +width   ....refactor
        const newSquare = document.getElementById(newId)
        click(newSquare)
      }

After fixing this, we also have to change line 54:

if (i < 89 && squares[i +width].classList.contains('bomb')) total ++

We likewise should add 1 to the amount we are checking:

if (i < 90 && squares[i +width].classList.contains('bomb')) total ++

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