package org.papervision3d.core.math
{
/**
* The student_ar_org_papervision3d_core_math_NumberUV class represents a value in a texture UV coordinate system.
*
* Properties u and v represent the horizontal and vertical texture axes respectively.
*
*/
public class student_ar_org_papervision3d_core_math_NumberUV
{
	/**
	* The horizontal coordinate value.
	*/
	public var u: Number;

	/**
	* The vertical coordinate value.
	*/
	public var v: Number;

	/**
	* Creates a new student_ar_org_papervision3d_core_math_NumberUV object whose coordinate values are specified by the u and v parameters. If you call this constructor function without parameters, a student_ar_org_papervision3d_core_math_NumberUV with u and v properties set to zero is created.
	*
	* @param	u	The horizontal coordinate value. The default value is zero.
	* @param	v	The vertical coordinate value. The default value is zero.
	*/
	public function student_ar_org_papervision3d_core_math_NumberUV( u: Number=0, v: Number=0 )
	{
		this.u = u;
		this.v = v;
	}


	/**
	* Returns a new student_ar_org_papervision3d_core_math_NumberUV object that is a clone of the original instance with the same UV values.
	*
	* @return	A new student_ar_org_papervision3d_core_math_NumberUV instance with the same UV values as the original student_ar_org_papervision3d_core_math_NumberUV instance.
	*/
	public function clone():student_ar_org_papervision3d_core_math_NumberUV
	{
		return new student_ar_org_papervision3d_core_math_NumberUV( this.u, this.v );
	}


	/**
	* Returns a student_ar_org_papervision3d_core_math_NumberUV object with u and v properties set to zero.
	*
	* @return A student_ar_org_papervision3d_core_math_NumberUV object.
	*/
	static public function get ZERO():student_ar_org_papervision3d_core_math_NumberUV
	{
		return new student_ar_org_papervision3d_core_math_NumberUV( 0, 0 );
	}


	/**
	* Returns a string value representing the UV values in the specified student_ar_org_papervision3d_core_math_NumberUV object.
	*
	* @return	A string.
	*/
	public function toString(): String
	{
		return 'u:' + u + ' v:' + v;
	}
	
	public static function weighted(a:student_ar_org_papervision3d_core_math_NumberUV, b:student_ar_org_papervision3d_core_math_NumberUV, aw:Number, bw:Number):student_ar_org_papervision3d_core_math_NumberUV
        {                
            if (a == null)
                return null;
            if (b == null)
                return null;
            var d:Number = aw + bw;
            var ak:Number = aw / d;
            var bk:Number = bw / d;
            return new student_ar_org_papervision3d_core_math_NumberUV(a.u*ak+b.u*bk, a.v*ak + b.v*bk);
        }
	
	public static function median(a:student_ar_org_papervision3d_core_math_NumberUV, b:student_ar_org_papervision3d_core_math_NumberUV):student_ar_org_papervision3d_core_math_NumberUV
        {
            if (a == null)
                return null;
            if (b == null)
                return null;
            return new student_ar_org_papervision3d_core_math_NumberUV((a.u + b.u)/2, (a.v + b.v)/2);
        }
}
}