More work on the C/C++ plugin system for pybullet/C-API:

Add preTickPluginCallback/postTickPluginCallback
User pointer for b3PluginContext, to store objects (class/struct instances)
Pass ints and floats as optional argument for plugin executePluginCommand

examples/SharedMemory/plugins/b3PluginContext.h

@@ -5,9 +5,17 @@
 
 struct b3PluginContext
 {
-	const char* m_arguments;
 
 	b3PhysicsClientHandle	m_physClient;
+
+	//plugin can modify the m_userPointer to store persistent object pointer (class or struct instance etc)
+	void* m_userPointer;
+
 };
 
+
+
+
+
+
 #endif //B3_PLUGIN_CONTEXT_H