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package com.github.brunothg.game.engine.time;

/**
 * Time utility class
 * 
 * @author Marvin Bruns
 *
 */
public class TimeUtils
{
	public static final long NANOSECONDS_PER_SECOND = 1_000_000_000;
	public static final long MILLISECONDS_PER_SECOND = 1_000;
	public static final int NANOSECONDS_PER_MILLISECOND = 1_000_000;

	/**
	 * Convert nanoseconds to seconds
	 * 
	 * @param nano nanoseconds
	 * @return seconds
	 */
	public static double Seconds(long nano)
	{
		return nano / (double) NANOSECONDS_PER_SECOND;
	}

	/**
	 * Convert nanoseconds to milliseconds
	 * 
	 * @param nano nanoseconds
	 * @return milliseconds
	 */
	public static double Milliseconds(long nano)
	{
		return nano / (double) NANOSECONDS_PER_MILLISECOND;
	}

	/**
	 * Convert milliseconds to nanoseconds
	 * 
	 * @param milliseconds Milliseconds to be converted
	 * @return nanoseconds
	 */
	public static long NanosecondsOfMilliseconds(long milliseconds)
	{
		return milliseconds * NANOSECONDS_PER_MILLISECOND;
	}

	/**
	 * Convert milliseconds to nanoseconds
	 * 
	 * @param seconds Seconds to be converted
	 * @return nanoseconds
	 */
	public static long NanosecondsOfSeconds(long seconds)
	{
		return seconds * NANOSECONDS_PER_SECOND;
	}
}