Added Animation.removeFrame, removeFrameAt and getFrameAt.

Author: photonstorm

v3/src/animation/frame/Animation.js

@@ -137,11 +137,18 @@ Animation.prototype = {
         this.paused = false;
     },
 
+    //  config = Array of Animation config objects, like:
+    //  [
+    //      { key: 'gems', frame: 'diamond0001', [duration], [visible], [onUpdate] }
+    //  ]
+
+    //  Add frames to the end of the animation
     addFrame: function (config)
     {
-        return this.addFrameAt(0, config);
+        return this.addFrameAt(this.frames.length, config);
     },
 
+    //  Add frame/s into the animation
     addFrameAt: function (index, config)
     {
         if (index === undefined) { index = 0; }
@@ -172,6 +179,33 @@ Animation.prototype = {
         return this;
     },
 
+    getFrameAt: function (index)
+    {
+        return this.frames[index];
+    },
+
+    //  Remove frame if it matches the given frame
+    removeFrame: function (frame)
+    {
+        var index = this.frames.indexOf(frame);
+
+        if (index !== -1)
+        {
+            this.removeFrameAt(index);
+        }
+
+        return this;
+    },
+
+    removeFrameAt: function (index)
+    {
+        this.frames.splice(index, 1);
+
+        this.updateFrameSequence();
+
+        return this;
+    },
+
     updateFrameSequence: function ()
     {
         var len = this.frames.length;

v3/src/animation/frame/Frame.js

@@ -10,26 +10,33 @@ var Frame = function (textureKey, textureFrame, index, frame)
     //  Texture Frame
     this.frame = frame;
 
+    //  Read-only
     this.isFirst = false;
+
+    //  Read-only
     this.isLast = false;
 
     //  The frame that comes before this one in the animation (if any)
+    //  Read-only
     this.prevFrame = null;
 
     //  The frame that comes after this one in the animation (if any)
+    //  Read-only
     this.nextFrame = null;
 
     //   Additional time (in ms) this frame should appear for - added onto the msPerFrame
     this.duration = 0;
 
     //   What % through the animation progress is this frame?
+    //  Read-only
     this.progress = 0;
 
     //  Callback if this frame gets displayed
     this.onUpdate = null;
 
     //  When this frame hits, set sprite.visible to this
     this.setVisible = false;
+
     this.visible = false;
 };