Method add

src/main/java/org/bukkit/Location.java:347–357

Adds the location by another. @see Vector @param vec The other location @return the same location @throws IllegalArgumentException for differing worlds

(@NotNull Location vec)

     * @throws IllegalArgumentException for differing worlds
     */
    @NotNull
    public Location add(@NotNull Location vec) {
        if (vec == null || vec.getWorld() != getWorld()) {
            throw new IllegalArgumentException("Cannot add Locations of differing worlds");
        }

        x += vec.x;
        y += vec.y;
        z += vec.z;
        return this;
    }

    /**
     * Adds the location by a vector.