const image = document.getElementById('container-img');
const container = document.getElementById('img-container');
let moveInterval;
let keysPressed = {};
//이미지 스케일변경
var scaleFactor = 3;
var currentWidth = image.clientWidth;
var newWidth = currentWidth * scaleFactor;
image.style.width = newWidth + 'px';
//실행함수
function moveImage() {
let xPos = image.offsetLeft;
let yPos = image.offsetTop;
let imgwidth = image.offsetLeft;
let imgheight = image.offsetTop;
//else if로 구분하면 대각선 이동이 안됨
if (keysPressed.ArrowUp) {
yPos += 1;
}
if (keysPressed.ArrowDown) {
if (imgheight <= (image.clientHeight - container.clientHeight) * -1) {
return;
}
yPos -= 1;
}
if (keysPressed.ArrowLeft) {
xPos += 1;
}
if (keysPressed.ArrowRight) {
if (imgwidth <= (image.clientWidth - container.clientWidth) * -1) {
return;
}
xPos -= 1;
}
//제어
if (imgwidth + xPos > 0 || imgheight + yPos > 0) {
//log
//console.log(xPos);
return;
}
image.style.left = xPos + 'px';
image.style.top = yPos + 'px';
//log
//console.log(imgwidth);
//console.log(image.style.left + image.style.top);
}
document.addEventListener('keydown', function (event) {
keysPressed[event.key] = true; //키가 눌렸을 때
clearInterval(moveInterval);
moveInterval = setInterval(() => {
moveImage();
},5);
});
document.addEventListener('keyup', function (event) {
keysPressed[event.key] = false; //키가 떼어졌을 때
if (
!keysPressed.ArrowUp &&
!keysPressed.ArrowDown &&
!keysPressed.ArrowLeft &&
!keysPressed.ArrowRight
) {
clearInterval(moveInterval);
}
});
#img-container {
position: relative;
border: 1px solid black;
width: 1020px;
height: 580px;
overflow: hidden;
/*pointer-events: none;*/
pointer-events: visiblePainted;
}
#container-img {
position: absolute;
top: 0;
left: 0;
cursor: move;
}
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Image Drag Example</title>
<link rel="stylesheet" href="css/styles.css" />
</head>
<body>
<div id="img-container">
<img id="container-img" src="img/test3d.png" />
</div>
<script src="js/script.js"></script>
</body>
</html>
