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Add event handlers for swipe actions on mobile devices #2

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Add event handlers for swipe actions on mobile devices #2

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25 changes: 13 additions & 12 deletions index.html
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Original file line number Diff line number Diff line change
@@ -1,14 +1,15 @@
<!DOCTYPE html>
<html lang="en">
<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>Document</title>
<link rel="stylesheet" href="styles.css">
<script src="script.js" type="module"></script>
</head>
<body>
<div id="game-board"></div>
</body>
</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>2048</title>
<link rel="stylesheet" href="styles.css">
<script src="swiped-events.min.js"></script>
<script src="script.js" type="module"></script>
</head>
<body>
<div id="game-board"></div>
</body>
</html>
56 changes: 54 additions & 2 deletions script.js
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,59 @@ grid.randomEmptyCell().tile = new Tile(gameBoard)
setupInput()

function setupInput() {
window.addEventListener("keydown", handleInput, { once: true })
window.addEventListener("keydown", handleInput, { once: true });
window.addEventListener("swiped", handleMobileInput, { once: true });
}

async function handleMobileInput(e) {
switch (e.detail.dir) {
case "up":
if (!canMoveUp()) {
setupInput();
return;
}
await moveUp();
break;
case "down":
e.preventDefault();
if (!canMoveDown()) {
setupInput();
return;
}
await moveDown();
break;
case "left":
if (!canMoveLeft()) {
setupInput();
return;
}
await moveLeft();
break;
case "right":
if (!canMoveRight()) {
setupInput();
return;
}
await moveRight();
break;
default:
setupInput();
return;
}

grid.cells.forEach((cell) => cell.mergeTiles());

const newTile = new Tile(gameBoard);
grid.randomEmptyCell().tile = newTile;

if (!canMoveUp() && !canMoveDown() && !canMoveLeft() && !canMoveRight()) {
newTile.waitForTransition(true).then(() => {
alert("Game Over!\nRefresh the page for a new one!");
});
return;
}

setupInput();
}

async function handleInput(e) {
Expand Down Expand Up @@ -54,7 +106,7 @@ async function handleInput(e) {

if (!canMoveUp() && !canMoveDown() && !canMoveLeft() && !canMoveRight()) {
newTile.waitForTransition(true).then(() => {
alert("You lose")
alert("Game Over!\nRefresh the page for a new one!");
})
return
}
Expand Down
7 changes: 6 additions & 1 deletion styles.css
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,11 @@
font-family: Arial;
}

html,
body {
overscroll-behavior-y: contain;
}

body {
background-color: #333;
display: flex;
Expand Down Expand Up @@ -52,4 +57,4 @@ body {
opacity: .5;
transform: scale(0);
}
}
}
9 changes: 9 additions & 0 deletions swiped-events.min.js
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