checkers rules

[gilberto85]

i dont know but i saw your video and this is not american checkers rules

https://www.itsyourturn.com/t_helptopic2030.html

[stillonearth]

Those should be English Checkers. Do you need American checkers?

[gilberto85]

yes

[stillonearth]

Check the updated video. Rules as of now:

• getting an extra turn for a piece if you ate an opponent
• crowning

[gilberto85]

Hi there thank you I saw the video but american checkers jumps are mandatory

[stillonearth]

They are. Check 16th second on vid

[gilberto85]

Sorry the only video I see is this Checkers.on.Bevy.2022-11-16.19-08-04.mp4

And its not jumping according to American checkers rules btw you have a very good skills

[stillonearth]

Yeah, that's the one

Where exactly you see an error in this ruleset:

• piece can move 1 square in advancing forward
• piece get an extra move if it eaten an opponent's piece
• after crowning a piece can move diagonally without restriction on number of squares

[gilberto85]

If a piece is in front of another piece with a free square nehide him it need to jump and remove the piece from the board ( jumps are mandatory ) if you want you can see a video here

Look everytime they need to jump in a piece that piece needs to be removed from the board

https://youtube.com/shorts/-TnVXMNsoHI?feature=share

On Wed, Nov 16, 2022, 8:35 AM Sergei Surovtsev @.***> wrote:

Yeah, that's the one

Where exactly you see an error in this ruleset:

• piece can move 1 square in advancing forward
• piece get an extra move if it eaten an opponent's piece
• after crowning a piece can move diagonally without restriction on number of squares

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[stillonearth]

Okay, seems I'm getting it now.

[gilberto85]

Hope that video can help you

[gilberto85]

Also multiple jumps are mandatory

[gilberto85]

Is that much to change ? I don't know what kind of checkers is that rules now I don't know if it's Italian rules

[stillonearth]

No, it's not that much, I'll aim to update them this week.

пт, 18 нояб. 2022 г., 04:21 gilberto85 @.***>:

Is that much to change ? I don't know what kind of checkers is that rules now I don't know if it's Italian rules

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[gilberto85]

I am working on my own checkers website , the developer make something already and we can play already and creat rooms to play against other people. There are some bugs that I need to fix and some other checkers variants that I need to add , would you be interested in working on my site ?

Checkersvip.com

On Thu, Nov 17, 2022, 5:22 PM Sergei Surovtsev @.***> wrote:

No, it's not that much, I'll aim to update them this week.

пт, 18 нояб. 2022 г., 04:21 gilberto85 @.***>:

Is that much to change ? I don't know what kind of checkers is that rules now I don't know if it's Italian rules

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[stillonearth]

This project supports wasm targets so you can depoy on web (though neural AI won't work with wasm, an investigation required). With some adjustments multiplayer is also possible. I'll make an example branch with american rules adjustments.

PRs are welcome if you'll choose to use this codebase.

[stillonearth]

This branch implements American ruleset (i.e. jump mandatory is possible): https://github.com/stillonearth/CheckersOnBevy/tree/american-ruleset

The changes are in pub fn possible_moves(&self) -> [Vec<Position>; 24]:

1. Check whether current moveset for a given side contains a 'Take` move:

   let mut american_jump_possible: HashMap<Color, bool> = HashMap::new();
   for i in 0..24 {
   let p = self.state.pieces.iter().find(|p| p.id == i);
   if p.is_none() {
       continue;
   }
   
   let color = p.unwrap().color;
   for j in 0..24 {
       let p = self.state.pieces.iter().find(|p| p.id == j);
       if p.is_none() {
           continue;
       }
   
       let other_color = p.unwrap().color;
   
       if other_color == color {
           let jump_possible = moveset[j as usize].iter().any(|m| m.1 == MoveType::Take);
           if jump_possible {
               american_jump_possible.insert(color, true);
               break;
           }
       }
   }
   }

2. Filter out regular moves if so.

That's enough to limit AI, and there's another check in Game::step

let moveset = self.possible_moves();
if moveset[piece.id as usize].len() == 0 {
    // self.state.turn.change();
    return (MoveType::Invalid, &self.state, self.check_termination());
}

[gilberto85]

I saw the last video and you improved the code however keep in mind that of you or the oponent have multiple jumps those are mandatory as well

On Fri, Nov 18, 2022, 5:40 AM Sergei Surovtsev @.***> wrote:

This branch implements American ruleset (i.e. jump mandatory is possible): https://github.com/stillonearth/CheckersOnBevy/tree/american-ruleset

— Reply to this email directly, view it on GitHub https://github.com/stillonearth/CheckersOnBevy/issues/3#issuecomment-1320007126, or unsubscribe https://github.com/notifications/unsubscribe-auth/ASY7Y67TOJZP2WCRWGQA7TTWI6BLZANCNFSM6AAAAAAR5GV4JY . You are receiving this because you authored the thread.Message ID: @.***>

[gilberto85]

On second 11' of that video the AI had a chance make another jump and it waited until you moved to make the other jump

On Fri, Nov 18, 2022, 5:40 AM Sergei Surovtsev @.***> wrote:

This branch implements American ruleset (i.e. jump mandatory is possible): https://github.com/stillonearth/CheckersOnBevy/tree/american-ruleset

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[gilberto85]

My website supports playonline already but I need users to play against an AI as well or creat bots so if a user creat a room a no one join the room in let's say 30 seconds a bot will join and play with the real user.

On Fri, Nov 18, 2022, 1:48 AM Sergei Surovtsev @.***> wrote:

This project support wasm targets so you can depoy on web. With some adjustments multiplayer is also possible. PRs are welcome. I'll make an example branch with american rules adjustments.

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[stillonearth]

You're talking about this vid right? https://github.com/stillonearth/CheckersOnBevy/tree/american-ruleset

In that branches attack moves are mandatory.

[gilberto85]

Yes that video if you have multiple jumps ( 2, 3 , 4 etc ) are mandatory on the same turn they not need to waiti until the oponen moves

On Fri, Nov 18, 2022, 10:31 AM Sergei Surovtsev @.***> wrote:

You're talking about this vid right? https://github.com/stillonearth/CheckersOnBevy/tree/american-ruleset

In that branches attack moves are mandatory.

— Reply to this email directly, view it on GitHub https://github.com/stillonearth/CheckersOnBevy/issues/3#issuecomment-1320388587, or unsubscribe https://github.com/notifications/unsubscribe-auth/ASY7Y673P7OA3UBDATEWESDWI7DRRANCNFSM6AAAAAAR5GV4JY . You are receiving this because you authored the thread.Message ID: @.***>

[stillonearth]

That's probably an animation issue, as they are not queued now.