diff options
Diffstat (limited to 'public')
| -rw-r--r-- | public/board.js | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/public/board.js b/public/board.js index 7c41edb..c99d560 100644 --- a/public/board.js +++ b/public/board.js @@ -5,12 +5,13 @@ let squares = document.getElementsByClassName('square') sync_board() let highlighted_squares = [] +let drag; //allow ondrop to fire document.addEventListener("dragover", (e) => e.preventDefault(), false) function piece_events(e){ - e.onclick = e.ondrag = handle_highlight(e.id) + e.onclick = e.ondragstart = handle_highlight(e) e.draggable = true e.ondrop = null } @@ -19,11 +20,17 @@ for (let i = 0; i < squares.length; i++) { piece_events(squares[i]) } -function handle_highlight(id) { - return function() { +function handle_highlight(elem) { + return function(ev) { - let moves = move(board, id.charCodeAt(0) - 48, id.charCodeAt(1) - 48, to_move) + //validates if square has a piece, and it is it's turn + if(ev.type === "dragstart" && (!elem || !elem.hasChildNodes() || + !elem.children[0].classList.contains(to_move? "w" : "b"))){ + return false + } + let moves = move(board, elem.id.charCodeAt(0) - 48, elem.id.charCodeAt(1) - 48, to_move) + for (let i = 0; i < highlighted_squares.length; i++) { highlighted_squares[i].classList.remove('highlight') piece_events(highlighted_squares[i]) @@ -33,8 +40,8 @@ function handle_highlight(id) { let hlsquare = document.getElementById(`${moves[i][0]}${moves[i][1]}`) hlsquare.classList.add('highlight') - hlsquare.ondrop = handle_move(id, hlsquare.id) - hlsquare.onclick = handle_move(id, hlsquare.id) + hlsquare.ondrop = handle_move(elem.id, hlsquare.id) + hlsquare.onclick = handle_move(elem.id, hlsquare.id) highlighted_squares.push(hlsquare) } |