lichess-org/flutter-chessground

Chessboard package for flutter

flutter-chessground's Issues

Integrate drawing shapes

Make drawing shapes with touch input possible.

Deselect a piece by tapping it again

Premove cancel behavior

Right now the only way a premove can be cancelled is by tapping the piece that has been premoved twice. On the website, premoves are cancelled on clicking anywhere on the board.
I think this is a reasonable approach and should be mirrored in this package.

Are there any screenshots?

I'd like to create some screen designs in Figma. Are there any screenshots about what this library is capable of?

Small pieces on large screens

This occurs on my 1440p Desktop screen. It appears to be due to the pieces resolution being too small. I can't test if this also occurs on high resolution phone screens, but if so, it should probably be fixed.

Premoves

Add missing image board themes

For now only wood4 and horsey are present.

Add missing themes so it matches the board theme selector on lichess.

Promotion selector is not shown.

When the movement of the chessboard is using playunchecked() and a pawn arrived to the other side the promotion selector is now shown and the pawn stays stuck there forever.

Support 2 players sitting opposite to each other

To support this scenario I think two features should be implemented:

• the black pieces should be display rotated by 180 degrees
• the board coordinates should be displayed twice: For white and for black (once again rotated by 180 degrees)

Improve horsey theme with images overlay

For now when horsey background is selected, standard move, selected piece, etc. solid color overlays are applied.

horsey them need special image overlays instead. Those images can be found here: https://github.com/lichess-org/lila/tree/master/public/images/board

Tap my piece should cancel premove

To match website behaviour.

Add caliente piece set

A new piece set called caliente was added to lila: lichess-org/lila#13107
Caliente piece set repository: https://github.com/avi-0/caliente

Embedded Shape Drawing Support

You wanted the users to be able to draw shapes by touching with one finger and moving the other. This is not possible using a gesture detector as far as I could tell, so a custom solution using listeners to touch events is necessary one way or another. Implementing this without Riverpod seems tedious, so I think the optimal solution would be to refactor it using callback functions provided by the app using flutter-chessground while providing a "default" GestureDetector to slot in which doesn't allow for drawing shapes natively.

When using Riverpod or at least callbacks, it is also possible to differentiate events by input device type, such as a stylus. This could allow for the users to draw shapes with a stylus while playing normally with fingers.