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package com.senocular.gyro {
public class InterpolateProperty extends Interpolate {
protected var _start:Number;
protected var _end:Number;
/**
* The start value for interpolation.
*/
public function get start():Number {
return _start;
}
public function set start(n:Number):void {
_start = n;
}
/**
* The end value for interpolation.
*/
public function get end():Number {
return _end;
}
public function set end(n:Number):void {
_end = n;
}
/**
* Constructor. Creates a new InterpolateProperty instance.
* @param start The start value for interpolation.
* @param end The end value for interpolation.
* @param owner The owner of the property to interpolate.
* @param property The name of the property to interpolate.
*/
public function InterpolateProperty(start:Number = NaN, end:Number = NaN, owner:* = null, property:Object = null){
this.start = start;
this.end = end;
super(owner, property);
}
/**
* Determines a value between start and end based on t where
* 0 is start and 1 is end.
* @param t The amount to interpolate the property.
*/
public override function interpolate(t:Number):void {
if (_owner && _property != null) {
var result:Number = _start + (_end - _start)*t;
// make sure the result is a valid number
if (isNaN(result) == false){
_owner[_property] = _start + (_end - _start)*t;
}
}
}
}
}
