Fixed breaking Tween loop change and implemented PathFollower startAt in a slightly different way

Author: photonstorm

src/gameobjects/pathfollower/PathFollower.js

@@ -246,7 +246,6 @@ var PathFollower = new Class({
         //  Override in case they've been specified in the config
         config.from = 0;
         config.to = 1;
-        config.startAt = startAt;
 
         //  Can also read extra values out of the config:
 
@@ -255,6 +254,22 @@ var PathFollower = new Class({
         this.rotateToPath = GetBoolean(config, 'rotateToPath', false);
         this.pathRotationOffset = GetValue(config, 'rotationOffset', 0);
 
+        //  This works, but it's not an ideal way of doing it as the follower jumps position
+        var seek = GetValue(config, 'startAt', startAt);
+
+        if (seek)
+        {
+            config.onStart = function (tween)
+            {
+                var tweenData = tween.data[0];
+                tweenData.progress = seek;
+                tweenData.elapsed = tweenData.duration * seek;
+                var v = tweenData.ease(tweenData.progress);
+                tweenData.current = tweenData.start + ((tweenData.end - tweenData.start) * v);
+                tweenData.target[tweenData.key] = tweenData.current;
+            };
+        }
+
         this.pathTween = this.scene.sys.tweens.addCounter(config);
 
         //  The starting point of the path, relative to this follower

src/tweens/builders/NumberTweenBuilder.js

@@ -45,7 +45,6 @@ var NumberTweenBuilder = function (parent, config, defaults)
 
     var from = GetValue(config, 'from', 0);
     var to = GetValue(config, 'to', 1);
-    var current = GetValue(config, 'startAt', from);
 
     var targets = [ { value: from } ];
 
@@ -79,7 +78,7 @@ var NumberTweenBuilder = function (parent, config, defaults)
     );
 
     tweenData.start = from;
-    tweenData.current = current;
+    tweenData.current = from;
     tweenData.to = to;
 
     data.push(tweenData);

src/tweens/tween/Tween.js

@@ -1183,7 +1183,6 @@ var Tween = new Class({
         return TWEEN_CONST.COMPLETE;
     },
 
-    //
     /**
      * [description]
      *
@@ -1208,11 +1207,6 @@ var Tween = new Class({
                     tweenData.state = TWEEN_CONST.COMPLETE;
                     break;
                 }
-                
-                if (!tweenData.elapsed && tweenData.current)
-                {
-                    tweenData.elapsed = tweenData.duration * tweenData.current;
-                }
 
                 var elapsed = tweenData.elapsed;
                 var duration = tweenData.duration;
@@ -1324,7 +1318,7 @@ var Tween = new Class({
 
                     tweenData.end = tweenData.getEndValue(tweenData.target, tweenData.key, tweenData.start);
 
-                    tweenData.current = tweenData.current || tweenData.start;
+                    tweenData.current = tweenData.start;
 
                     tweenData.target[tweenData.key] = tweenData.start;