read sprite anchor point from plist file

cocos/2d/CCSprite.cpp

@@ -1047,6 +1047,10 @@ void Sprite::setSpriteFrame(SpriteFrame *spriteFrame)
     {
         _polyInfo = spriteFrame->getPolygonInfo();
     }
+    if (spriteFrame->hasAnchorPoint())
+    {
+        setAnchorPoint(spriteFrame->getAnchorPoint());
+    }
 }
 
 void Sprite::setDisplayFrameWithAnimationName(const std::string& animationName, ssize_t frameIndex)

cocos/2d/CCSpriteFrame.cpp

@@ -104,6 +104,7 @@ bool SpriteFrame::initWithTexture(Texture2D* texture, const Rect& rect, bool rot
     _originalSizeInPixels = originalSize;
     _originalSize = CC_SIZE_PIXELS_TO_POINTS( _originalSizeInPixels );
     _rotated = rotated;
+    _anchorPoint = Vec2(NAN, NAN);
 
     return true;
 }
@@ -119,6 +120,7 @@ bool SpriteFrame::initWithTextureFilename(const std::string& filename, const Rec
     _originalSizeInPixels = originalSize;
     _originalSize = CC_SIZE_PIXELS_TO_POINTS( _originalSizeInPixels );
     _rotated = rotated;
+    _anchorPoint = Vec2(NAN, NAN);
 
     return true;
 }
@@ -173,6 +175,21 @@ void SpriteFrame::setOffsetInPixels(const Vec2& offsetInPixels)
     _offset = CC_POINT_PIXELS_TO_POINTS( _offsetInPixels );
 }
 
+const Vec2& SpriteFrame::getAnchorPoint() const
+{
+    return _anchorPoint;
+}
+
+void SpriteFrame::setAnchorPoint(const Vec2& anchorPoint)
+{
+    _anchorPoint = anchorPoint;
+}
+
+bool SpriteFrame::hasAnchorPoint() const
+{
+    return _anchorPoint.x != NAN;
+}
+
 void SpriteFrame::setTexture(Texture2D * texture)
 {
     if( _texture != texture ) {

cocos/2d/CCSpriteFrame.h

@@ -186,6 +186,22 @@ public:
      */
     void setOffset(const Vec2& offsets);
 
+    /** Get anchor point of the frame.
+     *
+     * @return The anchor point of the sprite frame.
+     */
+    const Vec2& getAnchorPoint() const;
+    /** Set anchor point of the frame.
+     *
+     * @param anchorPoint The anchor point of the sprite frame.
+     */
+    void setAnchorPoint(const Vec2& anchorPoint);
+    /** Check if anchor point is defined for frame.
+     *
+     * @return true if anchor point is available.
+     */
+    bool hasAnchorPoint() const;
+
     // Overrides
 	virtual SpriteFrame *clone() const override;
 
@@ -242,6 +258,7 @@ CC_CONSTRUCTOR_ACCESS:
 
 protected:
     Vec2 _offset;
+    Vec2 _anchorPoint;
     Size _originalSize;
     Rect _rectInPixels;
     bool   _rotated;

cocos/2d/CCSpriteFrameCache.cpp

@@ -276,6 +276,10 @@ void SpriteFrameCache::addSpriteFramesWithDictionary(ValueMap& dictionary, Textu
                 initializePolygonInfo(textureSize, spriteSourceSize, vertices, verticesUV, indices, info);
                 spriteFrame->setPolygonInfo(info);
             }
+            if (frameDict.find("anchor") != frameDict.end())
+            {
+                spriteFrame->setAnchorPoint(PointFromString(frameDict["anchor"].asString()));
+            }
         }
 
         bool flag = NinePatchImageParser::isNinePatchImage(spriteFrameName);