Function center

center(
out: vec2.Vec2,
box: readonly [number, number, number, number],
): vec2.Vec2
Calculate the center point of a bounding box
Parameters
- out: vec2.Vec2
  The output Vec2 for the center
- box: readonly [number, number, number, number]
  The input Box2
Returns vec2.Vec2
The center point
- Defined in shapes/box2.ts:229