silvericarus/just-chess

A version of chess made in HTML5 and Vanilla Javascript, using the Bulma framework

JuSt chess

Just Chess is an implementation of chess in HTML5 and vanilla JavaScript, using the Bulma Framework.

Plans

• Implement basic figure movement. (Done!)
• Implement all the rules.
• Implement different modes.

You can check the current status of the project here

Warning

If you want to contribute, all changes made on the master branch will affect the page which serves the preview of the app, so work on another branch and only merge when you are sure there are no bugs.

just-chess's Issues

Make the project use Firebase to allow multiplayer gameplay

Firebase must save the current board state, send the moves to the other client and serve as the backend.

Create Landing Page Design

Right now, the Game starts as soon as you load the page. The idea is to create a landing page where you can see the running games, create a new one, join a running game and then, start the game. It must use the elements in the Bulma framework and the color palette is to be chosen yet (proposals are apreciated). This issue is just for the HTML file, the inner working of the file (JS) would be created in another issue. A temporal structure for the page is in the listgames.html file.

Write description and instructions and design logo for landing page

The description should explain what is the game and how to enter a match, and the instructions should enumerate all the things needed to know in order to play.

(unknown): Script error.

View details in Rollbar: https://rollbar.com/silvericarus/JuSt-Chess/items/11/

(unknown): Script error.
  File "(unknown)", line unknown, in [anonymous]

TypeError: elementdata is null

View details in Rollbar: https://rollbar.com/silvericarus/JuSt-Chess/items/3/

TypeError: elementdata is null
  File "https://silvericarus.github.io/just-chess/js/main.js", line 140, in drop
  File "https://silvericarus.github.io/just-chess/", line 1, in ondrop

Create Queens and design their movement

The queen is the first of the "complex" pieces to code. It's movement, given its initial position (x.y), is:

• (x+i,y) as it moves in the x axis
• (x,y+i) as it moves in the y axis
• (x+i,y+i) as it moves diagonally towards the right top
• (x-i,y-i) as it moves diagonally towards the left top
• (x+i,y-j) as it moves diagonally towards the right bottom
• (x-i,y+j) as it moves diagonally towards the left bottom

Switch current landing page

Currently, the landing page is index.html, change it with listgames.html so it becomes the landing page.

Add Bishops

The bishops move diagonally until they encounter another piece, given an initial position (x,y) they can move to (x+i,y+i); (x-i,y-i); (x+i,y-j); (x-i,y-j)

Create button for create game

Code the castling, check, checkmate and the turns, as well as the stalemate.

• Castling:
  Castling is a move in the game of chess involving a player's king and either of the player's original rooks. It is the only move in chess in which a player moves two pieces in the same move, and it is the only move aside from the knight's move where a piece can be said to "jump over" another.

Castling consists of moving the king two squares towards a rook on the player's first rank, then moving the rook to the square over which the king crossed. Castling may only be done if the king has never moved, the rook involved has never moved, the squares between the king and the rook involved are unoccupied, the king is not in check, and the king does not cross over or end on a square attacked by an enemy piece. Castling is one of the rules of chess and is technically a king move.

• Check:
  A check is a condition in chess, shogi, xiangqi, and janggi that occurs when a player's king (or general in xiangqi and janggi) is under threat of capture on their opponent's next turn. A king so threatened is said to be in check. A player must get out of check, if possible, by interposing a piece between the threatening piece and the king, capturing the threatening piece, or moving the king to a square where it is no longer in check. If the player cannot move out of check, the game ends in checkmate and the player loses. Players cannot make any move that puts their own king in check.

• Checkmate:
  Checkmate (often shortened to mate) is a game position in chess and other chess-like games in which a player's king is in check (threatened with capture) and there is no way to remove the threat. Checkmating the opponent wins the game.

• Stalemate:
  Stalemate is a situation in the game of chess where the player whose turn it is to move is not in check but has no legal move. The rules of chess provide that when stalemate occurs, the game ends as a draw. During the endgame, stalemate is a resource that can enable the player with the inferior position to draw the game rather than lose. In more complex positions, stalemate is much rarer, usually taking the form of a swindle that succeeds only if the superior side is inattentive. Stalemate is also a common theme in endgame studies and other chess problems.

Sync destruction of pieces via Firebase

Describe the bug
The Pieces that are destroyed aren't synced, they need to be put in firebase as well.

To Reproduce
Steps to reproduce the behavior:

1. Destroy a piece in a player.
2. Check in the other player that it didn't show up.

Expected behavior
The destroyed piece showing in the graveyard in both players screens.

Create Knights and design their movement

The knights are the most complicated piece to code, because you have to manually check all of its posible movements, which are (given initial position (x,y)):

• (x±2,y±1) plus minus depending if its towards the left or the right or the top or the bottom
• (x±1,y±2) plus minus means the same as the latter

Test issue from Rollbar

This is a test issue created by Rollbar. If you can see this, it works!

Setup Airbrake for your JavaScript application

Install Airbrake in 2 easy steps:

Step 1: Add the library
Include via CDN:

<script src="https://cdnjs.cloudflare.com/ajax/libs/airbrake-js/1.6.2/client.min.js"></script>

We also support installation via npm or Bower.

Step 2: Copy this config snippet to your app.js file

(You can find your project ID and API KEY with your project's settings):

var airbrake = new airbrakeJs.Client({
  projectId: <Your project ID>,
  projectKey: '<Your project API Key>'
});

To test that Airbrake has been installed correctly in your JavaScript project, just open up the JavaScript console in your internet browser and paste in:

window.onerror("TestError: This is a test", "path/to/file.js", 123);

Visit our official GitHub repo for more info on alternative configurations and advanced options.

[IMPORTANT] Auth request for firebase

Is your feature request related to a problem? Please describe.
Authentication is needed for firebase data sending and receiving.

Describe the solution you'd like
A funtion that authenticates in firebase my app, so the player can play as much as he wants.

Describe alternatives you've considered
Singing up in the app would be too much, maybe finding something else a bit easier would be better.

Create Rooks and design their movement

Their movement is defined by:
They can move in the x and y axis indefinitely until they find another piece.

Make a script that starts the game when two players are connected

In the DB, there's a field called playersConnected. When it's not set, the player who connects arrives at a blocked screen, waiting for another player to connect. When this number its 1, it means that when the player connects, the two players get unblocked and can start playing.

Show moves in a table in both players

It should be placed below the playground and updated after moving a piece in both.

Empty cells are draggable

That causes errors in console and sometimes you drag multiple pieces at the same time.

Uncaught TypeError: Cannot read property 'classList' of null

View details in Rollbar: https://rollbar.com/silvericarus/JuSt-Chess/items/2/

TypeError: Cannot read property 'classList' of null
  File "https://silvericarus.github.io/just-chess/js/main.js", line 140, in drop
  File "https://silvericarus.github.io/just-chess/", line 1, in HTMLTableCellElement.ondrop

Create Kings and design their movement

The king can move on the same pattern as the pawns, one cell at a turn, so given initial position (x,y), it can move to:

• (x+1,y)
• (x,y+1)
• (x+1,y+1)
• (x-1,y-1)
• (x+1,y-1)
• (x-1,y+1)
  The castling and the check and checkmate will be programmed later with the game mechanics and the turns.

FirebaseError: Document path must be a non-empty string

View details in Rollbar: https://rollbar.com/silvericarus/JuSt-Chess/items/12/

FirebaseError: Document path must be a non-empty string
  File "webpack:///../firestore/dist/esm/src/util/error.js", line 140, in FirestoreError
            var _this = _super.call(this, message) || this;
  File "webpack:///../firestore/dist/esm/src/api/database.js", line 1184, in [anonymous]
                throw new FirestoreError(Code.INVALID_ARGUMENT, 'Document path must be a non-empty st...
  File "file:///C:/Users/Silver/Documents/Programaci%C3%B3n/just%20chess/chess.html", line 112, in [anonymous]

Change background of the cells which are reachable

When you start dragging a piece, you should change the bg-color of the cells within reach of that piece. This was suggested in #2

Create Pawns and design their movement

Create all the pawns in the app and design their movement.

Pawns can move in any x position in y+1

#2 When you drag a Pawn you can drop it in any column in the row ahead.

Create footer

Elements for footer

• Log of modifications

• Thanks

• Copyright

• Link to my web

• Log of modifications

• thanks

• Copyright

• Link to my web

• Footer