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0001 // Copyright (C) 2010, Guy Barrand. All rights reserved.
0002 // See the file tools.license for terms.
0003
0004 #ifndef tools_sg_torche
0005 #define tools_sg_torche
0006
0007 // directional light
0008
0009 #include "node"
0010 #include "sf_vec3f"
0011 #include "render_action"
0012
0013 #include "../colorfs"
0014
0015 namespace tools {
0016 namespace sg {
0017
0018 class torche : public node {
0019   TOOLS_NODE(torche,tools::sg::torche,node)
0020 public:
0021   sf_vec<colorf,float> color;
0022   sf_vec<colorf,float> ambient;
0023   sf_vec3f direction;
0024   sf<bool> on;
0025 public:
0026   virtual const desc_fields& node_desc_fields() const {
0027     TOOLS_FIELD_DESC_NODE_CLASS(tools::sg::torche)
0028     static const desc_fields s_v(parent::node_desc_fields(),4, //WARNING : take care of count.
0029       TOOLS_ARG_FIELD_DESC(color),
0030       TOOLS_ARG_FIELD_DESC(ambient),
0031       TOOLS_ARG_FIELD_DESC(direction),
0032       TOOLS_ARG_FIELD_DESC(on)
0033     );
0034     return s_v;
0035   }
0036 private:
0037   void add_fields(){
0038     add_field(&color);
0039     add_field(&ambient);
0040     add_field(&direction);
0041     add_field(&on);
0042   }
0043 public:
0044   virtual void render(render_action& a_action) {
0045     if(!on.value()) return;
0046     state& state = a_action.state();
0047     if((state.m_light+1)>=a_action.max_lights()) {
0048       a_action.out()
0049         << "GL_MAX_LIGHTS (" << a_action.max_lights() << ") reached."
0050         << std::endl;
0051       return;
0052     }
0053     state.m_GL_LIGHTING = true;
0054     a_action.enable_light(state.m_light,direction.value(),color.value(),ambient.value());
0055     state.m_light++;
0056   }
0057 public:
0058   torche()
0059   :parent()
0060   ,color(colorf_white())
0061   ,ambient(colorf_black())
0062   ,direction(vec3f(0,0,-1))
0063   ,on(true)
0064   {
0065     add_fields();
0066   }
0067   virtual ~torche(){}
0068 public:
0069   torche(const torche& a_from)
0070   :parent(a_from)
0071   ,color(a_from.color)
0072   ,ambient(a_from.ambient)
0073   ,direction(a_from.direction)
0074   ,on(a_from.on)
0075   {
0076     add_fields();
0077   }
0078   torche& operator=(const torche& a_from){
0079     parent::operator=(a_from);
0080     color = a_from.color;
0081     ambient = a_from.ambient;
0082     direction = a_from.direction;
0083     on = a_from.on;
0084     return *this;
0085   }
0086 };
0087
0088 }}
0089
0090 #endif