Console warning if frame doesn't exist

* `GenerateFrameNames` will now console.warn if the generated frame isn't present in the texture, which should help with debugging animation creation massively.
* `GenerateFrameNumbers` will now console.warn if the generated frame isn't present in the texture, which should help with debugging animation creation massively.

Author: photonstorm

src/animations/AnimationManager.js

@@ -518,6 +518,10 @@ var AnimationManager = new Class({
                 {
                     out.push({ key: key, frame: frame });
                 }
+                else
+                {
+                    console.warn('generateFrameNames: Frame missing: ' + frame + ' from texture: ' + key);
+                }
             }
         }
         else
@@ -530,6 +534,10 @@ var AnimationManager = new Class({
                 {
                     out.push({ key: key, frame: frame });
                 }
+                else
+                {
+                    console.warn('generateFrameNames: Frame missing: ' + frame + ' from texture: ' + key);
+                }
             }
         }
 
@@ -582,6 +590,10 @@ var AnimationManager = new Class({
                 {
                     out.push({ key: key, frame: frames[i] });
                 }
+                else
+                {
+                    console.warn('generateFrameNumbers: Frame ' + i + ' missing from texture: ' + key);
+                }
             }
         }
         else
@@ -603,6 +615,10 @@ var AnimationManager = new Class({
                 {
                     out.push({ key: key, frame: i });
                 }
+                else
+                {
+                    console.warn('generateFrameNumbers: Frame ' + i + ' missing from texture: ' + key);
+                }
             }
         }