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index.html
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index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<link rel="stylesheet" href="css/index.css">
</head>
<body>
<div id='world'>
</div>
<script>
//若第二行为 (、[、+、-或 / 开头时，JavaScript不会自动添加分号
var map = [
[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1],
[1, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 1],
[1, 2, 1, 1, 1, 2, 1, 2, 1, 1, 1, 2, 1],
[1, 2, 1, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1],
[1, 2, 2, 2, 1, 1, 4, 1, 1, 2, 2, 2, 1],
[1, 2, 1, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1],
[1, 2, 1, 1, 2, 2, 1, 2, 2, 1, 1, 2, 1],
[1, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 1],
[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1],
]
var pacmac = {
r: 4,
l: 6,
dir:'right'
}
var world = document.querySelector('#world')
draw = () => {
var html = ''
for (k in map) {
for (j in map[k]) {
if (map[k][j] === 1) html += `<div class='wall'></div>`
else if (map[k][j] === 2) html += `<div class='coin'></div>`
else if (map[k][j] === 3) html += `<div class='ground'></div>`
else if (map[k][j] === 4) html += '<div class="pacmac '+pacmac.dir+'"></div>'
}
html += '<br>'
}
world.innerHTML = html
}
draw();
document.addEventListener('keydown', (e) => {
// console.log(e.key);
console.log(e.code);
if (e.code === 'ArrowRight') {
pacmac.dir='right'
if (map[pacmac.r][pacmac.l + 1] !== 1) {
map[pacmac.r][pacmac.l] = 3
pacmac.l += 1
map[pacmac.r][pacmac.l] = 4
}
} else if (e.code === 'ArrowLeft') {
pacmac.dir='left'
if (map[pacmac.r][pacmac.l - 1] !== 1) {
map[pacmac.r][pacmac.l] = 3
pacmac.l -= 1
map[pacmac.r][pacmac.l] = 4
}
} else if (e.code === 'ArrowUp') {
pacmac.dir='up'
if (map[pacmac.r - 1][pacmac.l] !== 1) {
map[pacmac.r][pacmac.l] = 3
pacmac.r -= 1
map[pacmac.r][pacmac.l] = 4
}
} else if (e.code === 'ArrowDown') {
pacmac.dir='down'
if (map[pacmac.r + 1][pacmac.l] !== 1) {
map[pacmac.r][pacmac.l] = 3
pacmac.r += 1
map[pacmac.r][pacmac.l] = 4
}
}
draw();
})
</script>
</body>
</html>