帮我写一个html5实现拖放操作的棋类游戏的代码
时间: 2023-06-05 13:06:18 浏览: 226
html5网页版中国象棋小游戏代码.zip
好的,以下是实现拖放操作的棋类游戏的HTML5代码示例:
```
<html>
<head>
<style>
#game-board {
display: grid;
grid-template-columns: repeat(8, 1fr);
grid-template-rows: repeat(8, 1fr);
border: 2px solid black;
width: 500px;
height: 500px;
}
.piece {
position: absolute;
pointer-events: none;
transition: all 0.2s ease-out;
z-index: 2;
height: 50px;
width: 50px;
}
.piece.black {
background-color: black;
border: 2px solid #f3f3f3;
border-radius: 50%;
transform: translate(-25px, -25px);
}
.piece.white {
background-color: white;
border: 2px solid #f3f3f3;
border-radius: 50%;
transform: translate(-25px, -25px);
}
</style>
</head>
<body>
<div id="game-board">
<!-- create initial pieces on the board -->
<div class="piece black" data-type="black" data-row="0" data-col="0"></div>
<div class="piece black" data-type="black" data-row="0" data-col="2"></div>
<div class="piece.black" data-type="black" data-row="0" data-col="4"></div>
<div class="piece black" data-type="black" data-row="0" data-col="6"></div>
<div class="piece black" data-type="black" data-row="1" data-col="1"></div>
<div class="piece black" data-type="black" data-row="1" data-col="3"></div>
<div class="piece black" data-type="black" data-row="1" data-col="5"></div>
<div class="piece black" data-type="black" data-row="1" data-col="7"></div>
<div class="piece black" data-type="black" data-row="2" data-col="0"></div>
<div class="piece black" data-type="black" data-row="2" data-col="2"></div>
<div class="piece black" data-type="black" data-row="2" data-col="4"></div>
<div class="piece black" data-type="black" data-row="2" data-col="6"></div>
<div class="piece white" data-type="white" data-row="5" data-col="1"></div>
<div class="piece white" data-type="white" data-row="5" data-col="3"></div>
<div class="piece white" data-type="white" data-row="5" data-col="5"></div>
<div class="piece white" data-type="white" data-row="5" data-col="7"></div>
<div class="piece white" data-type="white" data-row="6" data-col="0"></div>
<div class="piece white" data-type="white" data-row="6" data-col="2"></div>
<div class="piece white" data-type="white" data-row="6" data-col="4"></div>
<div class="piece white" data-type="white" data-row="6" data-col="6"></div>
<div class="piece white" data-type="white" data-row="7" data-col="1"></div>
<div class="piece white" data-type="white" data-row="7" data-col="3"></div>
<div class="piece white" data-type="white" data-row="7" data-col="5"></div>
<div class="piece white" data-type="white" data-row="7" data-col="7"></div>
</div>
<script>
// define global variable for the clicked piece
var clickedPiece;
// add event listeners to each piece
var pieces = document.querySelectorAll('.piece');
pieces.forEach(piece => {
piece.addEventListener('mousedown', function(event) {
// set the clicked piece to the global variable
clickedPiece = event.target;
// add dragging class to the clicked piece
clickedPiece.classList.add('dragging');
})
});
// add event listeners to the game board
var board = document.getElementById('game-board');
board.addEventListener('mousemove', function(event) {
if (clickedPiece) {
// set the position of the dragged piece to the mouse position
clickedPiece.style.left = event.clientX - 25 + 'px';
clickedPiece.style.top = event.clientY - 25 + 'px';
}
})
board.addEventListener('mouseup', function(event) {
if (clickedPiece) {
// remove the dragging class from the clicked piece
clickedPiece.classList.remove('dragging');
// get the row and column of the dropped piece
var row = Math.floor((event.clientY - board.offsetTop) / 62.5);
var col = Math.floor((event.clientX - board.offsetLeft) / 62.5);
// check if the move is valid (in this case, just check if the space is empty)
if (isEmptySpace(row, col)) {
// update the data attributes of the piece to reflect its new position
clickedPiece.dataset.row = row;
clickedPiece.dataset.col = col;
// set the new position of the piece
clickedPiece.style.left = col * 62.5 + 'px';
clickedPiece.style.top = row * 62.5 + 'px';
}
clickedPiece = undefined;
}
})
// helper function to check if a space is empty
function isEmptySpace(row, col) {
var pieces = document.querySelectorAll('.piece');
for (var i = 0; i < pieces.length; i++) {
if (pieces[i].dataset.row == row && pieces[i].dataset.col == col) {
return false
}
}
return true
}
</script>
</body>
</html>
```
该示例使用CSS网格布局来创建一个8x8的棋盘,并在棋盘上创建黑色和白色的棋子。每个棋子都有其“data-type”、“data-row”和“data-col”属性,以便在拖动或放置棋子时进行更新。使用 JavaScript 和readystatechange事件来加载script。当用户按下鼠标按钮并移动鼠标时,动态更改绝对定位的棋子位置。当用户释放鼠标键时,该棋子的位置将被更新到正确的网格位置。
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