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/*
Copyright (C) 2001-2006, William Joseph.
All Rights Reserved.
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
*/
#if !defined (INCLUDED_ENTITYLIB_H)
#define INCLUDED_ENTITYLIB_H
#include "ireference.h"
#include "debugging/debugging.h"
#include "ientity.h"
#include "irender.h"
#include "igl.h"
#include "selectable.h"
#include "generic/callback.h"
#include "math/vector.h"
#include "math/aabb.h"
#include "undolib.h"
#include "string/string.h"
#include "generic/referencecounted.h"
#include "scenelib.h"
#include "container/container.h"
#include "eclasslib.h"
#include <list>
#include <set>
inline void arrow_draw(const Vector3& origin, const Vector3& direction)
{
Vector3 up(0, 0, 1);
Vector3 left(-direction[1], direction[0], 0);
Vector3 endpoint(vector3_added(origin, vector3_scaled(direction, 32.0)));
Vector3 tip1(vector3_added(vector3_added(endpoint, vector3_scaled(direction, -8.0)), vector3_scaled(up, -4.0)));
Vector3 tip2(vector3_added(tip1, vector3_scaled(up, 8.0)));
Vector3 tip3(vector3_added(vector3_added(endpoint, vector3_scaled(direction, -8.0)), vector3_scaled(left, -4.0)));
Vector3 tip4(vector3_added(tip3, vector3_scaled(left, 8.0)));
glBegin (GL_LINES);
glVertex3fv(vector3_to_array(origin));
glVertex3fv(vector3_to_array(endpoint));
glVertex3fv(vector3_to_array(endpoint));
glVertex3fv(vector3_to_array(tip1));
glVertex3fv(vector3_to_array(endpoint));
glVertex3fv(vector3_to_array(tip2));
glVertex3fv(vector3_to_array(endpoint));
glVertex3fv(vector3_to_array(tip3));
glVertex3fv(vector3_to_array(endpoint));
glVertex3fv(vector3_to_array(tip4));
glVertex3fv(vector3_to_array(tip1));
glVertex3fv(vector3_to_array(tip3));
glVertex3fv(vector3_to_array(tip3));
glVertex3fv(vector3_to_array(tip2));
glVertex3fv(vector3_to_array(tip2));
glVertex3fv(vector3_to_array(tip4));
glVertex3fv(vector3_to_array(tip4));
glVertex3fv(vector3_to_array(tip1));
glEnd();
}
class SelectionIntersection;
inline void aabb_testselect(const AABB& aabb, SelectionTest& test, SelectionIntersection& best)
{
const IndexPointer::index_type indices[24] = {
2, 1, 5, 6,
1, 0, 4, 5,
0, 1, 2, 3,
3, 7, 4, 0,
3, 2, 6, 7,
7, 6, 5, 4,
};
Vector3 points[8];
aabb_corners(aabb, points);
test.TestQuads(VertexPointer(reinterpret_cast<VertexPointer::pointer>(points), sizeof(Vector3)), IndexPointer(indices, 24), best);
}
inline void aabb_draw_wire(const Vector3 points[8])
{
typedef std::size_t index_t;
index_t indices[24] = {
0, 1, 1, 2, 2, 3, 3, 0,
4, 5, 5, 6, 6, 7, 7, 4,
0, 4, 1, 5, 2, 6, 3, 7,
};
#if 1
glVertexPointer(3, GL_FLOAT, 0, points);
glDrawElements(GL_LINES, sizeof(indices)/sizeof(index_t), GL_UNSIGNED_INT, indices);
#else
glBegin(GL_LINES);
for(std::size_t i = 0; i < sizeof(indices)/sizeof(index_t); ++i)
{
glVertex3fv(points[indices[i]]);
}
glEnd();
#endif
}
inline void aabb_draw_flatshade(const Vector3 points[8])
{
glBegin(GL_QUADS);
glNormal3fv(vector3_to_array(aabb_normals[0]));
glVertex3fv(vector3_to_array(points[2]));
glVertex3fv(vector3_to_array(points[1]));
glVertex3fv(vector3_to_array(points[5]));
glVertex3fv(vector3_to_array(points[6]));
glNormal3fv(vector3_to_array(aabb_normals[1]));
glVertex3fv(vector3_to_array(points[1]));
glVertex3fv(vector3_to_array(points[0]));
glVertex3fv(vector3_to_array(points[4]));
glVertex3fv(vector3_to_array(points[5]));
glNormal3fv(vector3_to_array(aabb_normals[2]));
glVertex3fv(vector3_to_array(points[0]));
glVertex3fv(vector3_to_array(points[1]));
glVertex3fv(vector3_to_array(points[2]));
glVertex3fv(vector3_to_array(points[3]));
glNormal3fv(vector3_to_array(aabb_normals[3]));
glVertex3fv(vector3_to_array(points[0]));
glVertex3fv(vector3_to_array(points[3]));
glVertex3fv(vector3_to_array(points[7]));
glVertex3fv(vector3_to_array(points[4]));
glNormal3fv(vector3_to_array(aabb_normals[4]));
glVertex3fv(vector3_to_array(points[3]));
glVertex3fv(vector3_to_array(points[2]));
glVertex3fv(vector3_to_array(points[6]));
glVertex3fv(vector3_to_array(points[7]));
glNormal3fv(vector3_to_array(aabb_normals[5]));
glVertex3fv(vector3_to_array(points[7]));
glVertex3fv(vector3_to_array(points[6]));
glVertex3fv(vector3_to_array(points[5]));
glVertex3fv(vector3_to_array(points[4]));
glEnd();
}
inline void aabb_draw_wire(const AABB& aabb)
{
Vector3 points[8];
aabb_corners(aabb, points);
aabb_draw_wire(points);
}
inline void aabb_draw_flatshade(const AABB& aabb)
{
Vector3 points[8];
aabb_corners(aabb, points);
aabb_draw_flatshade(points);
}
inline void aabb_draw_textured(const AABB& aabb)
{
Vector3 points[8];
aabb_corners(aabb, points);
glBegin(GL_QUADS);
glNormal3fv(vector3_to_array(aabb_normals[0]));
glTexCoord2fv(aabb_texcoord_topleft);
glVertex3fv(vector3_to_array(points[2]));
glTexCoord2fv(aabb_texcoord_topright);
glVertex3fv(vector3_to_array(points[1]));
glTexCoord2fv(aabb_texcoord_botright);
glVertex3fv(vector3_to_array(points[5]));
glTexCoord2fv(aabb_texcoord_botleft);
glVertex3fv(vector3_to_array(points[6]));
glNormal3fv(vector3_to_array(aabb_normals[1]));
glTexCoord2fv(aabb_texcoord_topleft);
glVertex3fv(vector3_to_array(points[1]));
glTexCoord2fv(aabb_texcoord_topright);
glVertex3fv(vector3_to_array(points[0]));
glTexCoord2fv(aabb_texcoord_botright);
glVertex3fv(vector3_to_array(points[4]));
glTexCoord2fv(aabb_texcoord_botleft);
glVertex3fv(vector3_to_array(points[5]));
glNormal3fv(vector3_to_array(aabb_normals[2]));
glTexCoord2fv(aabb_texcoord_topleft);
glVertex3fv(vector3_to_array(points[0]));
glTexCoord2fv(aabb_texcoord_topright);
glVertex3fv(vector3_to_array(points[1]));
glTexCoord2fv(aabb_texcoord_botright);
glVertex3fv(vector3_to_array(points[2]));
glTexCoord2fv(aabb_texcoord_botleft);
glVertex3fv(vector3_to_array(points[3]));
glNormal3fv(vector3_to_array(aabb_normals[3]));
glTexCoord2fv(aabb_texcoord_topleft);
glVertex3fv(vector3_to_array(points[0]));
glTexCoord2fv(aabb_texcoord_topright);
glVertex3fv(vector3_to_array(points[3]));
glTexCoord2fv(aabb_texcoord_botright);
glVertex3fv(vector3_to_array(points[7]));
glTexCoord2fv(aabb_texcoord_botleft);
glVertex3fv(vector3_to_array(points[4]));
glNormal3fv(vector3_to_array(aabb_normals[4]));
glTexCoord2fv(aabb_texcoord_topleft);
glVertex3fv(vector3_to_array(points[3]));
glTexCoord2fv(aabb_texcoord_topright);
glVertex3fv(vector3_to_array(points[2]));
glTexCoord2fv(aabb_texcoord_botright);
glVertex3fv(vector3_to_array(points[6]));
glTexCoord2fv(aabb_texcoord_botleft);
glVertex3fv(vector3_to_array(points[7]));
glNormal3fv(vector3_to_array(aabb_normals[5]));
glTexCoord2fv(aabb_texcoord_topleft);
glVertex3fv(vector3_to_array(points[7]));
glTexCoord2fv(aabb_texcoord_topright);
glVertex3fv(vector3_to_array(points[6]));
glTexCoord2fv(aabb_texcoord_botright);
glVertex3fv(vector3_to_array(points[5]));
glTexCoord2fv(aabb_texcoord_botleft);
glVertex3fv(vector3_to_array(points[4]));
glEnd();
}
inline void aabb_draw_solid(const AABB& aabb, RenderStateFlags state)
{
if(state & RENDER_TEXTURE)
{
aabb_draw_textured(aabb);
}
else
{
aabb_draw_flatshade(aabb);
}
}
inline void aabb_draw(const AABB& aabb, RenderStateFlags state)
{
if(state & RENDER_FILL)
{
aabb_draw_solid(aabb, state);
}
else
{
aabb_draw_wire(aabb);
}
}
class RenderableSolidAABB : public OpenGLRenderable
{
const AABB& m_aabb;
public:
RenderableSolidAABB(const AABB& aabb) : m_aabb(aabb)
{
}
void render(RenderStateFlags state) const
{
aabb_draw_solid(m_aabb, state);
}
};
class RenderableWireframeAABB : public OpenGLRenderable
{
const AABB& m_aabb;
public:
RenderableWireframeAABB(const AABB& aabb) : m_aabb(aabb)
{
}
void render(RenderStateFlags state) const
{
aabb_draw_wire(m_aabb);
}
};
typedef Callback1<const char*> KeyObserver;
/// \brief A key/value pair of strings.
///
/// - Notifies observers when value changes - value changes to "" on destruction.
/// - Provides undo support through the global undo system.
class KeyValue
{
typedef UnsortedSet<KeyObserver> KeyObservers;
std::size_t m_refcount;
KeyObservers m_observers;
CopiedString m_string;
const char* m_empty;
ObservedUndoableObject<CopiedString> m_undo;
static EntityCreator::KeyValueChangedFunc m_entityKeyValueChanged;
public:
KeyValue(const char* string, const char* empty)
: m_refcount(0), m_string(string), m_empty(empty), m_undo(m_string, UndoImportCaller(*this))
{
notify();
}
~KeyValue()
{
ASSERT_MESSAGE(m_observers.empty(), "KeyValue::~KeyValue: observers still attached");
}
static void setKeyValueChangedFunc(EntityCreator::KeyValueChangedFunc func)
{
m_entityKeyValueChanged = func;
}
void IncRef()
{
++m_refcount;
}
void DecRef()
{
if(--m_refcount == 0)
{
delete this;
}
}
void instanceAttach(MapFile* map)
{
m_undo.instanceAttach(map);
}
void instanceDetach(MapFile* map)
{
m_undo.instanceDetach(map);
}
void attach(const KeyObserver& observer)
{
(*m_observers.insert(observer))(c_str());
}
void detach(const KeyObserver& observer)
{
observer(m_empty);
m_observers.erase(observer);
}
const char* c_str() const
{
if(string_empty(m_string.c_str()))
{
return m_empty;
}
return m_string.c_str();
}
void assign(const char* other)
{
if(!string_equal(m_string.c_str(), other))
{
m_undo.save();
m_string = other;
notify();
}
}
void notify()
{
m_entityKeyValueChanged();
KeyObservers::reverse_iterator i = m_observers.rbegin();
while(i != m_observers.rend())
{
(*i++)(c_str());
}
}
void importState(const CopiedString& string)
{
m_string = string;
notify();
}
typedef MemberCaller1<KeyValue, const CopiedString&, &KeyValue::importState> UndoImportCaller;
};
/// \brief An unsorted list of key/value pairs.
///
/// - Notifies observers when a pair is inserted or removed.
/// - Provides undo support through the global undo system.
/// - New keys are appended to the end of the list.
class EntityKeyValues : public Entity
{
public:
typedef KeyValue Value;
class Observer
{
public:
virtual void insert(const char* key, Value& value) = 0;
virtual void erase(const char* key, Value& value) = 0;
};
private:
static EntityCreator::KeyValueChangedFunc m_entityKeyValueChanged;
static Counter* m_counter;
EntityClass* m_eclass;
typedef SmartPointer<KeyValue> KeyValuePtr;
typedef UnsortedMap<CopiedString, KeyValuePtr > KeyValues;
KeyValues m_keyValues;
typedef UnsortedSet<Observer*> Observers;
Observers m_observers;
ObservedUndoableObject<KeyValues> m_undo;
bool m_instanced;
bool m_observerMutex;
void notifyInsert(const char* key, Value& value)
{
m_observerMutex = true;
for(Observers::iterator i = m_observers.begin(); i != m_observers.end(); ++i)
{
(*i)->insert(key, value);
}
m_observerMutex = false;
}
void notifyErase(const char* key, Value& value)
{
m_observerMutex = true;
for(Observers::iterator i = m_observers.begin(); i != m_observers.end(); ++i)
{
(*i)->erase(key, value);
}
m_observerMutex = false;
}
void forEachKeyValue_notifyInsert()
{
for(KeyValues::const_iterator i = m_keyValues.begin(); i != m_keyValues.end(); ++i)
{
notifyInsert((*i).first.c_str(), *(*i).second);
}
}
void forEachKeyValue_notifyErase()
{
for(KeyValues::const_iterator i = m_keyValues.begin(); i != m_keyValues.end(); ++i)
{
notifyErase((*i).first.c_str(), *(*i).second);
}
}
void insert(const char* key, const KeyValuePtr& keyValue)
{
KeyValues::iterator i = m_keyValues.insert(KeyValues::value_type(key, keyValue));
notifyInsert(key, *(*i).second);
if(m_instanced)
{
(*i).second->instanceAttach(m_undo.map());
}
}
void insert(const char* key, const char* value)
{
KeyValues::iterator i = m_keyValues.find(key);
if(i != m_keyValues.end())
{
(*i).second->assign(value);
}
else
{
m_undo.save();
insert(key, KeyValuePtr(new KeyValue(value, EntityClass_valueForKey(*m_eclass, key))));
}
}
void erase(KeyValues::iterator i)
{
if(m_instanced)
{
(*i).second->instanceDetach(m_undo.map());
}
CopiedString key((*i).first);
KeyValuePtr value((*i).second);
m_keyValues.erase(i);
notifyErase(key.c_str(), *value);
}
void erase(const char* key)
{
KeyValues::iterator i = m_keyValues.find(key);
if(i != m_keyValues.end())
{
m_undo.save();
erase(i);
}
}
public:
bool m_isContainer;
EntityKeyValues(EntityClass* eclass) :
m_eclass(eclass),
m_undo(m_keyValues, UndoImportCaller(*this)),
m_instanced(false),
m_observerMutex(false),
m_isContainer(!eclass->fixedsize)
{
}
EntityKeyValues(const EntityKeyValues& other) :
Entity(other),
m_eclass(&other.getEntityClass()),
m_undo(m_keyValues, UndoImportCaller(*this)),
m_instanced(false),
m_observerMutex(false),
m_isContainer(other.m_isContainer)
{
for(KeyValues::const_iterator i = other.m_keyValues.begin(); i != other.m_keyValues.end(); ++i)
{
insert((*i).first.c_str(), (*i).second->c_str());
}
}
~EntityKeyValues()
{
ASSERT_MESSAGE(m_observers.empty(), "EntityKeyValues::~EntityKeyValues: observers still attached");
}
static void setKeyValueChangedFunc(EntityCreator::KeyValueChangedFunc func)
{
m_entityKeyValueChanged = func;
KeyValue::setKeyValueChangedFunc(func);
}
static void setCounter(Counter* counter)
{
m_counter = counter;
}
void importState(const KeyValues& keyValues)
{
for(KeyValues::iterator i = m_keyValues.begin(); i != m_keyValues.end();)
{
erase(i++);
}
for(KeyValues::const_iterator i = keyValues.begin(); i != keyValues.end(); ++i)
{
insert((*i).first.c_str(), (*i).second);
}
m_entityKeyValueChanged();
}
typedef MemberCaller1<EntityKeyValues, const KeyValues&, &EntityKeyValues::importState> UndoImportCaller;
void attach(Observer& observer)
{
ASSERT_MESSAGE(!m_observerMutex, "observer cannot be attached during iteration");
m_observers.insert(&observer);
for(KeyValues::const_iterator i = m_keyValues.begin(); i != m_keyValues.end(); ++i)
{
observer.insert((*i).first.c_str(), *(*i).second);
}
}
void detach(Observer& observer)
{
ASSERT_MESSAGE(!m_observerMutex, "observer cannot be detached during iteration");
m_observers.erase(&observer);
for(KeyValues::const_iterator i = m_keyValues.begin(); i != m_keyValues.end(); ++i)
{
observer.erase((*i).first.c_str(), *(*i).second);
}
}
void forEachKeyValue_instanceAttach(MapFile* map)
{
for(KeyValues::const_iterator i = m_keyValues.begin(); i != m_keyValues.end(); ++i)
{
(*i).second->instanceAttach(map);
}
}
void forEachKeyValue_instanceDetach(MapFile* map)
{
for(KeyValues::const_iterator i = m_keyValues.begin(); i != m_keyValues.end(); ++i)
{
(*i).second->instanceDetach(map);
}
}
void instanceAttach(MapFile* map)
{
if(m_counter != 0)
{
m_counter->increment();
}
m_instanced = true;
forEachKeyValue_instanceAttach(map);
m_undo.instanceAttach(map);
}
void instanceDetach(MapFile* map)
{
if(m_counter != 0)
{
m_counter->decrement();
}
m_undo.instanceDetach(map);
forEachKeyValue_instanceDetach(map);
m_instanced = false;
}
// entity
EntityClass& getEntityClass() const
{
return *m_eclass;
}
void forEachKeyValue(Visitor& visitor) const
{
for(KeyValues::const_iterator i = m_keyValues.begin(); i != m_keyValues.end(); ++i)
{
visitor.visit((*i).first.c_str(), (*i).second->c_str());
}
}
void setKeyValue(const char* key, const char* value)
{
if(value[0] == '\0'
/*|| string_equal(EntityClass_valueForKey(*m_eclass, key), value)*/) // don't delete values equal to default
{
erase(key);
}
else
{
insert(key, value);
}
m_entityKeyValueChanged();
}
const char* getKeyValue(const char* key) const
{
KeyValues::const_iterator i = m_keyValues.find(key);
if(i != m_keyValues.end())
{
return (*i).second->c_str();
}
return EntityClass_valueForKey(*m_eclass, key);
}
bool isContainer() const
{
return m_isContainer;
}
};
/// \brief A Resource reference with a controlled lifetime.
/// \brief The resource is released when the ResourceReference is destroyed.
class ResourceReference
{
CopiedString m_name;
Resource* m_resource;
public:
ResourceReference(const char* name)
: m_name(name)
{
capture();
}
ResourceReference(const ResourceReference& other)
: m_name(other.m_name)
{
capture();
}
ResourceReference& operator=(const ResourceReference& other)
{
ResourceReference tmp(other);
tmp.swap(*this);
return *this;
}
~ResourceReference()
{
release();
}
void capture()
{
m_resource = GlobalReferenceCache().capture(m_name.c_str());
}
void release()
{
GlobalReferenceCache().release(m_name.c_str());
}
const char* getName() const
{
return m_name.c_str();
}
void setName(const char* name)
{
ResourceReference tmp(name);
tmp.swap(*this);
}
void swap(ResourceReference& other)
{
std::swap(m_resource, other.m_resource);
std::swap(m_name, other.m_name);
}
void attach(ModuleObserver& observer)
{
m_resource->attach(observer);
}
void detach(ModuleObserver& observer)
{
m_resource->detach(observer);
}
Resource* get()
{
return m_resource;
}
};
namespace std
{
/// \brief Swaps the values of \p self and \p other.
/// Overloads std::swap.
inline void swap(ResourceReference& self, ResourceReference& other)
{
self.swap(other);
}
}
#endif
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