diff --git a/cocos/2d/CCActionTiledGrid.cpp b/cocos/2d/CCActionTiledGrid.cpp
index 3faae36bd8..3e624729f2 100644
--- a/cocos/2d/CCActionTiledGrid.cpp
+++ b/cocos/2d/CCActionTiledGrid.cpp
@@ -243,11 +243,11 @@ void ShuffleTiles::shuffle(unsigned int *array, unsigned int len)
 Size ShuffleTiles::getDelta(const Size& pos) const
 {
     unsigned int idx = static_cast<unsigned int>(pos.width * _gridSize.height + pos.height);
+    Vec2    pos2;
+    pos2.x = (float)(_tilesOrder[idx] / (int)_gridSize.height);
+    pos2.y = (float)(_tilesOrder[idx] % (int)_gridSize.height);
 
-    float x = _tilesOrder[idx] / (_gridSize.height - pos.width);
-    float y = (float)(_tilesOrder[idx] % (int)(_gridSize.height - pos.height));
-
-    return Size(x, y);
+    return Size((int)(pos2.x - pos.width), (int)(pos2.y - pos.height));
 }
 
 void ShuffleTiles::placeTile(const Vec2& pos, Tile *t)
diff --git a/cocos/2d/CCGrid.cpp b/cocos/2d/CCGrid.cpp
index c63b10fa9d..3517a0b3a1 100644
--- a/cocos/2d/CCGrid.cpp
+++ b/cocos/2d/CCGrid.cpp
@@ -811,7 +811,7 @@ void TiledGrid3D::updateVertexAndTexCoordinate()
         memcpy((char*)_vertexBuffer + offset, &tempVecPointer[i], sizeof(Vec3));
         memcpy((char*)_vertexBuffer + offset + sizeof(Vec3), &tempTexPointer[i], sizeof(Vec2));
     }
-    _drawCommand.createVertexBuffer((unsigned int)(sizeof(Vec3) + sizeof(Vec2) ), numOfPoints, CustomCommand::BufferUsage::DYNAMIC);
+    _drawCommand.createVertexBuffer((sizeof(Vec3) + sizeof(Vec2) ), numOfPoints, CustomCommand::BufferUsage::DYNAMIC);
     _drawCommand.updateVertexBuffer(_vertexBuffer, numOfPoints * sizeof(Vec3) + numOfPoints * sizeof(Vec2));
 
     _drawCommand.createIndexBuffer(CustomCommand::IndexFormat::U_SHORT, gradSize * 6, CustomCommand::BufferUsage::DYNAMIC);