Created
May 1, 2023 22:19
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Selecting multiple elements
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import React, { useRef } from 'react'; | |
import { useDispatch, useSelector } from 'react-redux'; | |
import Ascii from '../common/Ascii'; | |
import Pgn from '../common/Pgn'; | |
import Piece from '../common/Piece'; | |
// ... | |
const Board = ({props}) => { | |
const state = useSelector(state => state); | |
const dispatch = useDispatch(); | |
// ... | |
const sqsRef = useRef([]); | |
const imgsRef = useRef([]); | |
// ... | |
const handleMove = (payload) => { | |
// ... | |
}; | |
const board = () => { | |
return Ascii.flip( | |
state.board.flip, | |
state.board.history[state.board.history.length - 1 + state.history.back] | |
).map((rank, i) => { | |
return rank.map((piece, j) => { | |
let payload = { piece: piece }; | |
let color = (i + j) % 2 !== 0 | |
? Pgn.symbol.BLACK | |
: Pgn.symbol.WHITE; | |
state.board.flip === Pgn.symbol.WHITE | |
? payload = { | |
...payload, | |
i: i, | |
j: j, | |
sq: Ascii.fromIndexToAlgebraic(i, j) | |
} | |
: payload = { | |
...payload, | |
i: 7 - i, | |
j: 7 - j, | |
sq: Ascii.fromIndexToAlgebraic(7 - i, 7 - j) | |
}; | |
// ... | |
return <div | |
key={payload.sq} | |
ref={el => sqsRef.current[payload.sq] = el} | |
onClick={() => { | |
handleMove(payload); | |
}} | |
onDrop={(ev) => { | |
ev.preventDefault(); | |
handleMove(payload); | |
}} | |
onDragOver={(ev) => { | |
ev.preventDefault(); | |
}}> | |
{ | |
Piece.unicode[piece].char | |
? <img | |
ref={el => imgsRef.current[payload.sq] = el} | |
src={Piece.unicode[piece].char} | |
draggable={Piece.color(piece) === state.board.turn ? true : false} | |
onDragStart={() => handleMove(payload)} | |
/> | |
: null | |
} | |
</div> | |
}); | |
}); | |
} | |
return ( | |
<div> | |
{board()} | |
</div> | |
); | |
} | |
export default Board; |
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