kubowania / connect-four

A Pure JavaScript grid-based game

Project-05

Portfolio website built in React

This was a website built to showcase my technical skills, web design skills.

Project timeline and technologies used

Build a React website in 24 hours to showcase the following:

• My technical skill set
• My web design skill set
• My projects

Technologies Used

• HTML5
• CSS3
• JavaScript (ES6)
• SCSS
• Git
• GitHub
• React
• Webpack
• Bulma
• Node JS
• Babel

Homepage visuals

Skill set visuals

connect-four's Issues

Getting rid of the fixed array

Hi Ania, thank you very much for the JS course!

In this game though I think that rather than using a fixed array to find winning combinations it would be better to calculate the position of the selected cell, then look for the three adjacent cells in the available directions for matching cells dynamically.

These functions do that with basic arithmetics. You'll need to invoke checkWinner() with the position of the clicked cell (its index in the squares array) and the player that is performing the play (so invoke the function before changing currentPlayer, or store it for later use).

Best,
Proteo.

function checkCandidates(index, cssName, callbackId) {
    // Look for the three adjacent cells, as defined by callbackId().
    for (let i = 1; i <= 3; i++) {
      let id = callbackId(index, i);
      if (!squares[id].classList.contains(cssName)) {
        return false;
      }
    }
    return true;
  }

  function checkWinner(index, player) {
    const cssName = (player == 2) ? 'player-two' : 'player-one';
    const cellPos = (index + 1);
    const cellRow = Math.ceil(cellPos / 7);
    const cellCol = Math.ceil(cellPos - ((cellRow - 1) * 7));

    // Check bottom cells (after, in the same column).
    if (cellRow < 4 && checkCandidates(index, cssName, (index, i) => index + (7 * i))) {
      return true;
    }
    // Check left cells (before, in the same row).
    if (cellCol >= 4 && checkCandidates(index, cssName, (index, i) => index - i)) {
      return true;
    }
    //  Check top cells (before, in the same column).
    if (cellRow >= 4 && checkCandidates(index, cssName, (index, i) => index - (7 * i))) {
      return true;
    }
    //  Check right cells (after, in the same column).
    if (cellCol <= 4 && checkCandidates(index, cssName, (index, i) => index + i)) {
      return true;
    }

    // No winner yet!
    return false;
  }

Winners

In the winningArrays, we have:

[11, 7, 23, 29]

But that should be:

[11, 17, 23, 29]

All the best,

New version written from scratch.

Tried playing this yesterday with my son Noah.
But we immediately noticed some hard to fix bugs in this implementation.

Wrote a new version of this game from scratch. Hope you like it (we certainly enjoyed ourselves playing it yesterday):
https://github.com/w-A-L-L-e/connect-four

Website Link Missing!!!

Please provide the website link so that we can check the output.

Link is not working

@kubowania
Hi, I would like to point out that the link which you have given in the README.MD
here is not redirecting.

centering in screen and making bigger

i think a good addition would be to center it in the screen and making it a bit bigger so its easier to see