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workbenchthis machine

Files 884b6d52e6dbc7666a34ac021063e9d1241a348a

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/**
 * Keys to a direction on the map.
 *
 * The server has always been told a world-space direction, and that contract
 * does not change: from inside the player's head W means "the way I am
 * looking", so the keys are turned by the view angle before they are sent.
 * In the top-down view the keys are the compass they always were.
 */

/**
 * `ax` is right on the keyboard (+1 for D), `ay` is down the screen (+1 for
 * S, so forward is -1). `out` is filled and returned: no allocation.
 */
export function moveVector(ax, ay, yaw, out = { x: 0, y: 0 }) {
  const cos = Math.cos(yaw);
  const sin = Math.sin(yaw);
  out.x = cos * -ay - sin * ax;
  out.y = sin * -ay + cos * ax;
  return out;
}

1	/**
2	* Keys to a direction on the map.
3	*
4	* The server has always been told a world-space direction, and that contract
5	* does not change: from inside the player's head W means "the way I am
6	* looking", so the keys are turned by the view angle before they are sent.
7	* In the top-down view the keys are the compass they always were.
8	*/
9
10	/**
11	* `ax` is right on the keyboard (+1 for D), `ay` is down the screen (+1 for
12	* S, so forward is -1). `out` is filled and returned: no allocation.
13	*/
14	export function moveVector(ax, ay, yaw, out = { x: 0, y: 0 }) {
15	const cos = Math.cos(yaw);
16	const sin = Math.sin(yaw);
17	out.x = cos * -ay - sin * ax;
18	out.y = sin * -ay + cos * ax;
19	return out;
20	}