honeycomb_node.hpp

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#ifndef OGLPLUS_TEXGEN_HONEYCOMB_NODE_HPP
#define OGLPLUS_TEXGEN_HONEYCOMB_NODE_HPP
 
#include "base_node.hpp"
#include "fallback_input.hpp"
 
namespace eagine::oglp::texgen {
 
enum class honeycomb_direction { vertical, horizontal };
 
enum class honeycomb_output_type { cell_coord, cell_center, distance };
 
class honeycomb_output : public base_output {
private:
    input_with_const_default<float[2]>& _cells;
    honeycomb_direction& _direction;
    honeycomb_output_type _type;
 
    string_view type_abbr() const;
 
public:
    honeycomb_output(
      node_intf& parent,
      input_with_const_default<float[2]>&,
      honeycomb_direction& direction,
      honeycomb_output_type type);
 
    string_view type_name() override;
 
    slot_data_type value_type() override;
 
    std::ostream& definitions(std::ostream& out, compile_context& ctxt) override;
 
    std::ostream& expression(std::ostream& out, compile_context& ctxt) override;
};
 
class honeycomb_node : public base_node {
private:
    input_with_const_default<float[2]> _cells;
    honeycomb_direction _direction{honeycomb_direction::vertical};
 
    honeycomb_output _cell_coord;
    honeycomb_output _cell_center;
    honeycomb_output _distance;
 
public:
    honeycomb_node();
 
    honeycomb_node& set_cell_count(float x, float y) {
        _cells.fallback().set(x, y);
        return *this;
    }
 
    string_view type_name() override;
 
    span_size_t input_count() override;
 
    input_intf& input(span_size_t index) override;
 
    span_size_t output_count() override;
 
    output_intf& output(span_size_t index) override;
};
 
} // namespace eagine::oglp::texgen
 
#if !OGLPLUS_LINK_LIBRARY || defined(OGLPLUS_IMPLEMENTING_LIBRARY)
#include <oglplus/texgen/honeycomb_node.inl>
#endif
 
#endif // OGLPLUS_TEXGEN_HONEYCOMB_NODE_HPP