Added missing Curve constructor calls (opps!) and fixed tmpVec assignment in getLengths

Author: photonstorm

v3/src/paths/curves/Curve.js

@@ -20,6 +20,10 @@ var Curve = new Class({
     function Curve ()
     {
         this.arcLengthDivisions = 200;
+
+        this.cacheArcLengths = [];
+
+        this.needsUpdate = true;
     },
 
     // Get point at relative position in curve according to arc length
@@ -58,7 +62,9 @@ var Curve = new Class({
 
         for (var d = 0; d <= divisions; d++)
         {
-            points.push(this.getPointAt(d / divisions));
+            var t = this.getUtoTmapping(d / divisions, null, divisions);
+
+            points.push(this.getPoint(t));
         }
 
         return points;
@@ -79,9 +85,7 @@ var Curve = new Class({
     {
         if (divisions === undefined) { divisions = this.arcLengthDivisions; }
 
-        if (this.cacheArcLengths &&
-            (this.cacheArcLengths.length === divisions + 1) &&
-            !this.needsUpdate)
+        if ((this.cacheArcLengths.length === divisions + 1) && !this.needsUpdate)
         {
             return this.cacheArcLengths;
         }
@@ -98,9 +102,12 @@ var Curve = new Class({
         for (var p = 1; p <= divisions; p++)
         {
             current = this.getPoint(p / divisions, tmpVec2B);
+
             sum += current.distance(last);
+
             cache.push(sum);
-            last = current;
+
+            last.copy(current);
         }
 
         this.cacheArcLengths = cache;
@@ -117,9 +124,9 @@ var Curve = new Class({
 
     // Given u ( 0 .. 1 ), get a t to find p. This gives you points which are equidistant
 
-    getUtoTmapping: function (u, distance)
+    getUtoTmapping: function (u, distance, divisions)
     {
-        var arcLengths = this.getLengths();
+        var arcLengths = this.getLengths(divisions);
 
         var i = 0;
         var il = arcLengths.length;

v3/src/paths/curves/cubicbezier/CubicBezierCurve.js

@@ -15,6 +15,8 @@ var CubicBezierCurve = new Class({
 
     function CubicBezierCurve (v0, v1, v2, v3)
     {
+        Curve.call(this);
+
         this.v0 = v0;
         this.v1 = v1;
         this.v2 = v2;

v3/src/paths/curves/ellipse/EllipseCurve.js

@@ -13,6 +13,8 @@ var EllipseCurve = new Class({
 
     function EllipseCurve (aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation)
     {
+        Curve.call(this);
+
         this.aX = aX;
         this.aY = aY;
 

v3/src/paths/curves/line/LineCurve.js

@@ -17,6 +17,8 @@ var LineCurve = new Class({
     //  vec2s
     function LineCurve (v1, v2)
     {
+        Curve.call(this);
+
         this.v1 = v1;
         this.v2 = v2;
     },