environment_handler.h

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#ifndef LWPP_ENVIRONMENT_HANDLER_H
#define LWPP_ENVIRONMENT_HANDLER_H
 
#include "lwpp/plugin_handler.h"
#include <lwenviron.h>
 
namespace lwpp
{
  class EnvironmentHandler : public InstanceHandler, public ItemHandler, public RenderHandler 
  {
  public:
    EnvironmentHandler(void* g, void* context, LWError* err) : InstanceHandler(g,context,err){};
    virtual ~EnvironmentHandler(){};
    
    virtual LWError Evaluate (LWEnvironmentAccess *enva)
    {
      double x,y,z;
      x = enva->dir[0];
      y = enva->dir[1];
      z = enva->dir[2];
      enva->color[0]=x/2.0+0.5;
      enva->color[1]=y/2.0+0.5;
      enva->color[2]=z/2.0+0.5;
      return NULL;
    };
    virtual unsigned int Flags()
    {
      return 0; 
    }
  };
 
  template <class T>
  class EnvironmentAdaptor : public InstanceAdaptor <T>, public ItemAdaptor <T> , public RenderAdaptor<T>
  {
  public:
    EnvironmentAdaptor(const char *name, ServerTagInfo *tags)
    {
      LWServer::AddPlugin(LWENVIRONMENT_HCLASS, name, Activate, tags);
    }
    static int Activate (int version , GlobalFunc* global, LWInstance inst, void* serverData)
    {
      if(version!=LWENVIRONMENT_VERSION) return AFUNC_BADVERSION;
      lwpp::SetSuperGlobal(global);
      
      LWEnvironmentHandler* plugin = static_cast<LWEnvironmentHandler*>(inst);
      InstanceAdaptor<T>::Activate(plugin->inst);
      ItemAdaptor<T>::Activate(plugin->item);
      RenderAdaptor<T>::Activate(plugin->rend);
 
      plugin->evaluate = EnvironmentAdaptor::Evaluate;
      plugin->flags    = EnvironmentAdaptor::Flags;
  
      UNUSED(serverData);
      return AFUNC_OK;
    }
  private:
    static LWError Evaluate (LWInstance inst, LWEnvironmentAccess* ma)
    {
      T* plugin = static_cast<T*>(inst);
      plugin->Evaluate(ma);
      return NULL;
    }
    static unsigned int Flags (LWInstance inst)
    {
      T* plugin = static_cast<T*>(inst);
      return plugin->Flags();
    }
  };
 
  /* GUI Classes */
  IMPLEMENT_XPANELHANDLER(Environment);
  IMPLEMENT_XPANELADAPTOR(Environment);
  IMPLEMENT_LWPANELHANDLER(Environment);
  IMPLEMENT_LWPANELADAPTOR(Environment);
}
#endif //LWPP_ENVIRONMENT_HANDLER_H