Merge pull request cocos2d#14576 from mogemimi/fix-deprecation-warns-particle3d

Fix deprecation warnings in PU

Author: pandamicro

extensions/Particle3D/PU/CCPUBillboardChain.cpp

@@ -734,9 +734,9 @@ void PUBillboardChain::setBlendFunc(const BlendFunc& blendFunc)
 
 GLuint PUBillboardChain::getTextureName()
 {
-    if (TextureCache::getInstance()->isDirty())
+    if (Director::getInstance()->getTextureCache()->isDirty())
     {
-        if (TextureCache::getInstance()->getTextureForKey(_texFile) == nullptr)
+        if (Director::getInstance()->getTextureCache()->getTextureForKey(_texFile) == nullptr)
         {
             _texture = nullptr;
             this->init("");

extensions/Particle3D/PU/CCPURender.cpp

@@ -589,9 +589,9 @@ bool PUParticle3DEntityRender::initRender( const std::string &texFile )
 
 GLuint PUParticle3DEntityRender::getTextureName()
 {
-    if (TextureCache::getInstance()->isDirty())
+    if (Director::getInstance()->getTextureCache()->isDirty())
     {
-        if (TextureCache::getInstance()->getTextureForKey(_texFile) == nullptr)
+        if (Director::getInstance()->getTextureCache()->getTextureForKey(_texFile) == nullptr)
         {
             _texture = nullptr;
             this->initRender("");