using UnityEngine;
using System.Collections;

/// <summary>
/// Modifies a mesh's local scale around the spline according to an AnimationCurve
/// </summary>
[AddComponentMenu("SuperSplines/Other/Spline Mesh Modifiers/Scale Modifier (scale by curve)")]
public class SplineCurveScaleModifier : SplineMeshModifier 
{
	public AnimationCurve scaleCurve;		///< The AnimationCurve representing the scale of the mesh
	
	public override Vector3 ModifyVertex( SplineMesh splineMesh, Vector3 vertex, float splineParam )
	{
		return vertex * scaleCurve.Evaluate( splineParam );
	}
	
	public override Vector2 ModifyUV( SplineMesh splineMesh, Vector2 uvCoord, float splineParam )
	{
		return uvCoord;
	}
	
	public override Vector3 ModifyNormal( SplineMesh splineMesh, Vector3 normal, float splineParam )
	{
		return normal;
	}
	
	public override Vector4 ModifyTangent( SplineMesh splineMesh, Vector4 tangent, float splineParam )
	{
		return tangent;
	}
}