normal

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// Copyright (C) 2010, Guy Barrand. All rights reserved.
// See the file tools.license for terms.
 
#ifndef tools_sg_normal
#define tools_sg_normal
 
#include "node"
#include "sf_vec3f"
#include "render_action"
 
#include <vector>
 
namespace tools {
namespace sg {
 
class normal : public node {
  TOOLS_NODE(normal,tools::sg::normal,node)
public:
  sf_vec3f vec;
public:
  virtual const desc_fields& node_desc_fields() const {
    TOOLS_FIELD_DESC_NODE_CLASS(tools::sg::normal)
    static const desc_fields s_v(parent::node_desc_fields(),1, //WARNING : take care of count.
      TOOLS_ARG_FIELD_DESC(vec)
    );
    return s_v;
  }
private:
  void add_fields(){
    add_field(&vec);
  }
public:
  virtual void render(render_action& a_action) {
    state& state = a_action.state();
    state.m_normal = vec.value();
    a_action.normal(state.m_normal);
  }
public:
  normal()
  :parent()
  ,vec(vec3f(0,0,1))
  {
    add_fields();
  }
  virtual ~normal(){}
public:
  normal(const normal& a_from)
  :parent(a_from)
  ,vec(a_from.vec)
  {
    add_fields();
  }
  normal& operator=(const normal& a_from){
    parent::operator=(a_from);
    vec = a_from.vec;
    return *this;
  }
};
 
}}
 
#endif