Method r

src/main/java/com/volmit/adapt/util/M.java:146–152

Get true or false based on random percent @param d between 0 and 1 @return true if true

(Double d)

     * @return true if true
     */
    public static boolean r(Double d) {
        if (d == null) {
            return Math.random() < 0.5;
        }

        return Math.random() < d;
    }

    /**
     * Get the ticks per second from a time in nanoseconds, the rad can be used for