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Allow clicking source and destination to move piece, in addition to dragging and dropping. #138

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Allow clicking source and destination to move piece, in addition to dragging and dropping. #138

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cea05f6
updated chessboard.js to allow picking up pieces in addition to dragg…
levi-rocha Dec 9, 2016
9866d16
chessboard.js modified to allow clicking source and destination in ad…
levi-rocha Dec 9, 2016
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25 changes: 24 additions & 1 deletion www/js/chessboard.js
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Original file line number Diff line number Diff line change
Expand Up @@ -245,6 +245,7 @@ var ANIMATION_HAPPENING = false,
DRAGGED_PIECE,
DRAGGED_PIECE_LOCATION,
DRAGGED_PIECE_SOURCE,
CLICK_MOVE = false,
DRAGGING_A_PIECE = false,
SPARE_PIECE_ELS_IDS = {},
SQUARE_ELS_IDS = {},
Expand Down Expand Up @@ -1119,6 +1120,17 @@ function trashDraggedPiece() {
}

function dropDraggedPieceOnSquare(square) {

// if destination is same as source, piece stays picked up and is dropped at the next clicked square.
if (CLICK_MOVE == false) {
if (square === DRAGGED_PIECE_SOURCE) {
CLICK_MOVE = true;
return;
}
}

CLICK_MOVE = false;

removeSquareHighlights();

// update position
Expand Down Expand Up @@ -1275,6 +1287,17 @@ function stopDraggedPiece(location) {
if (result === 'snapback' || result === 'trash') {
action = result;
}
} else {
// source piece is a spare piece and position is off the board
if (DRAGGED_PIECE_SOURCE === 'spare' && location === 'offboard') {
if (CLICK_MOVE == false) {
// pick up spare piece and put it down on next clicked square
CLICK_MOVE = true;
return;
} else {
CLICK_MOVE = false;
}
}
}

// do it!
Expand Down Expand Up @@ -1704,4 +1727,4 @@ return widget;
window.ChessBoard.fenToObj = fenToObj;
window.ChessBoard.objToFen = objToFen;

})(); // end anonymous wrapper
})(); // end anonymous wrapper