You can now specify a defaultTextureKey for animation configurations, to avoid having it inside of every frame object.

Author: photonstorm

src/animations/frame/Animation.js

@@ -25,7 +25,7 @@ var Animation = new Class({
         this.type = 'frame';
 
         //  Extract all the frame data into the frames array
-        this.frames = GetFrames(manager.textureManager, GetValue(config, 'frames', []));
+        this.frames = GetFrames(manager.textureManager, GetValue(config, 'frames', []), GetValue(config, 'defaultTextureKey', null));
 
         //  The frame rate of playback in frames per second (default 24 if duration is null)
         this.frameRate = GetValue(config, 'frameRate', null);

src/animations/frame/inc/GetFrames.js

@@ -12,7 +12,7 @@ var GetValue = require('../../../utils/object/GetValue');
  *
  * @return {Phaser.Animations.AnimationFrame[]} [description]
  */
-var GetFrames = function (textureManager, frames)
+var GetFrames = function (textureManager, frames, defaultTextureKey)
 {
     //      frames: [
     //          { key: textureKey, frame: textureFrame },
@@ -38,7 +38,8 @@ var GetFrames = function (textureManager, frames)
 
         frames = [];
 
-        frameKeys.forEach(function (idx, value) {
+        frameKeys.forEach(function (idx, value)
+        {
             frames.push({ key: textureKey, frame: value });
         });
     }
@@ -54,7 +55,7 @@ var GetFrames = function (textureManager, frames)
     {
         var item = frames[i];
 
-        var key = GetValue(item, 'key', null);
+        var key = GetValue(item, 'key', defaultTextureKey);
 
         if (!key)
         {