/*
Copyright (C) 1999-2007 id Software, Inc. and contributors.
For a list of contributors, see the accompanying CONTRIBUTORS file.

This file is part of GtkRadiant.

GtkRadiant is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

GtkRadiant is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GtkRadiant; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

#ifndef _ENTITYMODEL_H_
#define _ENTITYMODEL_H_

#include "plugin.h"

/*! simulates misc_model entity behaviours for rendering/selection/editing */
class CEntityMiscModel : public IRender, public ISelect, public IEdit
{
public:
  CEntityMiscModel (entity_t *e);
  virtual ~CEntityMiscModel ();

  void IncRef() { refCount++; }
  void DecRef() { if(--refCount == 0) delete this; }

  // IRender
  void Draw(int state, int rflags) const;
  const aabb_t *GetAABB() const { return &m_BBox; }

  // ISelect
  bool TestRay(const ray_t *ray, vec_t *dist) const;
  //bool TestBox(const aabb_t aabb) const;

  // ITransform
  void Translate(const vec3_t translation);
  void Rotate(const vec3_t pivot, const vec3_t rotation);
  const vec_t *GetTranslation() const { return m_translate; }
  const vec_t *GetRotation() const { return m_euler; }
  void OnKeyValueChanged(entity_t *e, const char *key, const char* value);

  void SetName(const char *name);
private:
  void BuildCacheRequestString(const char *name);
  /*! updates the AABB and transformation matrix */
  void UpdateCachedData();
  entity_interfaces_t *m_model;

  entity_t *m_entity;

  int refCount;
  string_t m_version;

  Str m_cachereq;

   /*! AABB in local space */
  aabb_t m_BBox;

  /*! worldspace-to-localspace translation */
  vec3_t m_translate;

  /*! worldspace-to-localspace euler rotation angles */
  vec3_t m_euler;

  /*! worldspace-to-localspace scale */
  vec3_t m_scale;

  /*! localspace origin, effectively rotation & scale pivot point */
  vec3_t m_pivot;

  /*! worldspace-to-localspace transform, generated from translate/euler/scale/pivot */
  m4x4_t m_transform;

  /*! localspace-to-worldspace transform */
  m4x4_t m_inverse_transform;
};

/*! simulates eclass-model entity behaviours for rendering/selection/editing */
class CEntityEclassModel : public IRender, public ISelect, public IEdit
{
public:
  CEntityEclassModel ();
  virtual ~CEntityEclassModel ();

  void IncRef() { refCount++; }
  void DecRef() { if(--refCount == 0) delete this; }

  // IRender
  void Draw(int state, int rflags) const;
  const aabb_t *GetAABB() const { return &m_BBox; }

  // ISelect
  bool TestRay(const ray_t *ray, vec_t *dist) const;
  //bool TestBox(const aabb_t aabb) const;

  // ITransform
  void Translate(const vec3_t translation);
  void Rotate(const vec3_t pivot, const vec3_t rotation);
  const vec_t *GetTranslation() const { return m_translate; }
  const vec_t *GetRotation() const { return m_euler; }
  void OnKeyValueChanged(entity_t *e, const char *key, const char* value);

  void SetName(const char *name);
  void SetEclass(const eclass_t* eclass);
private:
  /*! updates the AABB and transformation matrix */
  void UpdateCachedData();
  entity_interfaces_t *m_model;

  int refCount;
  string_t m_name;
  string_t m_version;
  const eclass_t *m_eclass;

  /*! AABB in local space */
  aabb_t m_BBox;

  /*! worldspace-to-localspace translation */
  vec3_t m_translate;

  /*! worldspace-to-localspace euler rotation angles */
  vec3_t m_euler;

  /*! worldspace-to-localspace scale */
  vec3_t m_scale;

  /*! localspace origin, effectively rotation & scale pivot point */
  vec3_t m_pivot;

  /*! worldspace-to-localspace transform, generated from translate/euler/scale/pivot */
  m4x4_t m_transform;

  /*! localspace-to-worldspace transform */
  m4x4_t m_inverse_transform;
};

void pivot_draw(const vec3_t pivot);
void Entity_UpdateClass(entity_t *e, const char* value);

#endif /* _ENTITYMODEL_H_ */