package fl.transitions.easing
{
	/**
	 * The Back class defines three easing functions to implement 
 * motion with ActionScript animations. 
 *
 * @see fl.transitions.TransitionManager 
 *
 * @playerversion Flash 9.0
 * @langversion 3.0
 * @keyword Ease, Transition
	 */
	public class Back
	{
		/**
		 * The <code>easeIn()</code> method starts the motion by backtracking and  
     * then reversing direction and moving toward the target.
     *
     * @param t Specifies the current time, between 0 and duration inclusive.
     *
     * @param b Specifies the initial value of the animation property.
     *
     * @param c Specifies the total change in the animation property.
     *
     * @param d Specifies the duration of the motion.
     *
     * @param s Specifies the amount of overshoot, where the higher the value, 
     *          the greater the overshoot.
     *
     * @return The value of the interpolated property at the specified time.
     *
     * @includeExample examples/Back.easeIn.1.as -noswf
     *
     * @playerversion Flash 9.0
     * @langversion 3.0
     * @keyword Ease, Transitions
		 */
		public static function easeIn (t:Number, b:Number, c:Number, d:Number, s:Number = 0) : Number;
		/**
		 * The <code>easeOut()</code> method starts the motion by
     * moving towards the target, overshooting it slightly, 
     * and then reversing direction back toward the target.
     *
     * @param t Specifies the current time, between 0 and duration inclusive.
     *
     * @param b Specifies the initial value of the animation property.
     *
     * @param c Specifies the total change in the animation property.
     *
     * @param d Specifies the duration of the motion.
     *
     * @param s Specifies the amount of overshoot, where the higher the value, 
     *          the greater the overshoot.
     *
     * @return The value of the interpolated property at the specified time.
     *
     * @includeExample examples/Back.easeOut.1.as -noswf
     *
     * @playerversion Flash 9.0
     * @langversion 3.0
     * @keyword Ease, Transitions
		 */
		public static function easeOut (t:Number, b:Number, c:Number, d:Number, s:Number = 0) : Number;
		/**
		 * The <code>easeInOut()</code> method combines the motion
     * of the <code>easeIn()</code> and <code>easeOut()</code> methods
     * to start the motion by backtracking, then reversing direction and 
     * moving toward the target, overshooting the target slightly, reversing 
     * direction again, and then moving back toward the target.
     *
     * @param t Specifies the current time, between 0 and duration inclusive.
     *
     * @param b Specifies the initial value of the animation property.
     *
     * @param c Specifies the total change in the animation property.
     *
     * @param d Specifies the duration of the motion.
     *
     * @param s Specifies the amount of overshoot, where the higher the value, 
     *          the greater the overshoot.
     *
     * @return The value of the interpolated property at the specified time.
     *
     * @includeExample examples/Back.easeInOut.1.as -noswf
     *
     * @playerversion Flash 9.0
     * @langversion 3.0
     * @keyword Ease, Transitions
		 */
		public static function easeInOut (t:Number, b:Number, c:Number, d:Number, s:Number = 0) : Number;
	}
}
