What’s the Best Way to Handle WASD/Arrow Key Movement for a Web Map?

It sounds like you might be overcomplicating things with those if statements! Instead, consider whether you really need to manage key events on an individual basis or if you can maintain a broader state for each key. This will let you check the state of keys continuously and handle movement directly based on that state. For example, you can set up an object to track the keys that are pressed down, which allows for smoother diagonal movement without special cases for each direction.

Instead of using individual event responses, why not track the keys with their states? You can still use 'if' conditions but just remove the 'else' prefix to allow diagonal movements. For example, update your position based on the state of your keys each frame, like so:

```
const SPEED = 5.0;
let dx = 0, dy = 0;

if (event.key === "w" || event.key === "ArrowUp") dy--;
if (event.key === "s" || event.key === "ArrowDown") dy++;
if (event.key === "a" || event.key === "ArrowLeft") dx--;
if (event.key === "d" || event.key === "ArrowRight") dx++;

pos.x += dx * SPEED;
pos.y += dy * SPEED;
```
That way you can move in any direction without needing tons of if statements.

Are you working with an HTML5 Canvas or standard DOM elements? If it’s the former, consider implementing an animation loop. That way, you can use delta time to create smoother movements rather than just reacting to single key presses. This approach can help manage key states and avoid the mess of if statements. Additionally, checking key states each frame might simplify your code significantly!