node.h

#pragma once
 
#include "sound_bakery/core/core_include.h"
#include "sound_bakery/effect/effect.h"
#include "sound_bakery/parameter/parameter.h"
 
namespace sbk::engine
{
    enum SB_NODE_STATUS
    {
        // Has no get_parent and no bus
        SB_NODE_NULL,
        // Has a get_parent node
        SB_NODE_MIDDLE,
        // Has no get_parent but outputs to a bus
        SB_NODE_TOP
    };
 
    class SB_CLASS node_base : public sbk::core::database_object
    {
    public:
        ~node_base();
 
        virtual void set_parent_node(const sbk::core::database_ptr<node_base>& parent);
        virtual void set_output_bus(const sbk::core::database_ptr<node_base>& bus);
 
        node_base* get_parent() const;
        node_base* get_output_bus() const;
 
        SB_NODE_STATUS getNodeStatus() const noexcept;
 
        virtual bool can_add_children() const;  //< Can any children be added to this node?
        virtual bool can_add_child_type(const rttr::type& childType) const; //< Can this type be added to the child?
        bool can_add_child(const sbk::core::database_ptr<node_base>& child) const;  //< Can this runtime child be added?
 
        virtual bool can_add_parent() const;    //< Can any parents be added to this node?
        virtual bool can_add_parent_type(const rttr::type& parentType) const;   //< Can this type be added as a get_parent?
 
        void addChild(const sbk::core::database_ptr<node_base>& child);
        void removeChild(const sbk::core::database_ptr<node_base>& child);
 
        std::vector<node_base*> getChildren() const;
        std::size_t getChildCount() const;
        bool hasChild(const sbk::core::database_ptr<node_base>& test) const;
 
        void gatherAllDescendants(std::vector<node_base*>& descendants) const;
        void gatherAllParents(std::vector<node_base*>& parents) const;
 
    protected:
        sbk::core::database_ptr<node_base> m_parentNode;
        sbk::core::database_ptr<node_base> m_outputBus;
        std::unordered_set<sbk::core::database_ptr<node_base>> m_childNodes;
 
        REGISTER_REFLECTION(node_base, sbk::core::database_object)
    };
 
    class SB_CLASS node : public node_base
    {
    public:
        sbk::core::float_property m_volume   = sbk::core::float_property(1.0f, 0.0f, 1.0f);
        sbk::core::float_property m_pitch    = sbk::core::float_property(1.0f, 0.0f, 1.0f);
        sbk::core::float_property m_lowpass  = sbk::core::float_property(1.0f, 0.0f, 100.0f);
        sbk::core::float_property m_highpass = sbk::core::float_property(1.0f, 0.0f, 100.0f);
 
        std::vector<sbk::core::database_ptr<effect_description>> m_effectDescriptions;
 
        virtual void gatherParameters(global_parameter_list& parameters);
 
        void addEffect(sc_dsp_type type);
 
    protected:
        virtual void gatherParametersFromThis(global_parameter_list& parameters) { (void)parameters; }
 
        REGISTER_REFLECTION(node, node_base)
    };
}  // namespace sbk::engine