如题，由于本人年龄限制知识不足，请dalao解答

Location eyeLocation = player.getEyeLocation();
// 方法一
Vector direction = eyeLocation.getDirection();
// 方法二
Vector vector = new Vector();
double rotX = eyeLocation.getYaw();
double rotY = eyeLocation.getPitch();
vector.setY(-Math.sin(Math.toRadians(rotY)));
double xz = Math.cos(Math.toRadians(rotY));
vector.setX(-xz * Math.sin(Math.toRadians(rotX)));
vector.setZ(xz * Math.cos(Math.toRadians(rotX)));