mirror of
https://github.com/minetest/irrlicht.git
synced 2024-09-07 05:10:19 +02:00
git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6000 dfc29bdd-3216-0410-991c-e03cc46cb475
285 lines
6.9 KiB
C++
285 lines
6.9 KiB
C++
// Copyright (C) 2010-2012 Nikolaus Gebhardt
|
|
// This file is part of the "Irrlicht Engine".
|
|
// For conditions of distribution and use, see copyright notice in irrlicht.h
|
|
|
|
#include "CSceneLoaderIrr.h"
|
|
#include "ISceneNodeAnimatorFactory.h"
|
|
#include "ISceneUserDataSerializer.h"
|
|
#include "ISceneManager.h"
|
|
#include "IVideoDriver.h"
|
|
#include "IFileSystem.h"
|
|
#include "os.h"
|
|
|
|
namespace irr
|
|
{
|
|
namespace scene
|
|
{
|
|
|
|
//! Constructor
|
|
CSceneLoaderIrr::CSceneLoaderIrr(ISceneManager *smgr, io::IFileSystem* fs)
|
|
: SceneManager(smgr), FileSystem(fs),
|
|
IRR_XML_FORMAT_SCENE(L"irr_scene"), IRR_XML_FORMAT_NODE(L"node"), IRR_XML_FORMAT_NODE_ATTR_TYPE(L"type"),
|
|
IRR_XML_FORMAT_ATTRIBUTES(L"attributes"), IRR_XML_FORMAT_MATERIALS(L"materials"),
|
|
IRR_XML_FORMAT_ANIMATORS(L"animators"), IRR_XML_FORMAT_USERDATA(L"userData")
|
|
{
|
|
|
|
}
|
|
|
|
//! Destructor
|
|
CSceneLoaderIrr::~CSceneLoaderIrr()
|
|
{
|
|
|
|
}
|
|
|
|
//! Returns true if the class might be able to load this file.
|
|
bool CSceneLoaderIrr::isALoadableFileExtension(const io::path& filename) const
|
|
{
|
|
return core::hasFileExtension(filename, "irr");
|
|
}
|
|
|
|
//! Returns true if the class might be able to load this file.
|
|
bool CSceneLoaderIrr::isALoadableFileFormat(io::IReadFile *file) const
|
|
{
|
|
// todo: check inside the file
|
|
return true;
|
|
}
|
|
|
|
//! Loads the scene into the scene manager.
|
|
bool CSceneLoaderIrr::loadScene(io::IReadFile* file, ISceneUserDataSerializer* userDataSerializer,
|
|
ISceneNode* rootNode)
|
|
{
|
|
if (!file)
|
|
{
|
|
os::Printer::log("Unable to open scene file", ELL_ERROR);
|
|
return false;
|
|
}
|
|
|
|
io::IXMLReader* reader = FileSystem->createXMLReader(file);
|
|
if (!reader)
|
|
{
|
|
os::Printer::log("Scene is not a valid XML file", file->getFileName().c_str(), ELL_ERROR);
|
|
return false;
|
|
}
|
|
|
|
// TODO: COLLADA_CREATE_SCENE_INSTANCES can be removed when the COLLADA loader is a scene loader
|
|
bool oldColladaSingleMesh = SceneManager->getParameters()->getAttributeAsBool(COLLADA_CREATE_SCENE_INSTANCES);
|
|
SceneManager->getParameters()->setAttribute(COLLADA_CREATE_SCENE_INSTANCES, false);
|
|
|
|
// read file
|
|
while (reader->read())
|
|
{
|
|
readSceneNode(reader, rootNode, userDataSerializer);
|
|
}
|
|
|
|
// restore old collada parameters
|
|
SceneManager->getParameters()->setAttribute(COLLADA_CREATE_SCENE_INSTANCES, oldColladaSingleMesh);
|
|
|
|
// clean up
|
|
reader->drop();
|
|
return true;
|
|
}
|
|
|
|
|
|
//! Reads the next node
|
|
void CSceneLoaderIrr::readSceneNode(io::IXMLReader* reader, ISceneNode* parent,
|
|
ISceneUserDataSerializer* userDataSerializer)
|
|
{
|
|
if (!reader)
|
|
return;
|
|
|
|
scene::ISceneNode* node = 0;
|
|
|
|
if (!parent && IRR_XML_FORMAT_SCENE==reader->getNodeName())
|
|
node = SceneManager->getRootSceneNode();
|
|
else if (parent && IRR_XML_FORMAT_NODE==reader->getNodeName())
|
|
{
|
|
// find node type and create it
|
|
core::stringc attrName = reader->getAttributeValue(IRR_XML_FORMAT_NODE_ATTR_TYPE.c_str());
|
|
|
|
node = SceneManager->addSceneNode(attrName.c_str(), parent);
|
|
|
|
if (!node)
|
|
os::Printer::log("Could not create scene node of unknown type", attrName.c_str());
|
|
}
|
|
else
|
|
node=parent;
|
|
|
|
// read attributes
|
|
while(reader->read())
|
|
{
|
|
bool endreached = false;
|
|
|
|
const wchar_t* name = reader->getNodeName();
|
|
|
|
switch (reader->getNodeType())
|
|
{
|
|
case io::EXN_ELEMENT_END:
|
|
if ((IRR_XML_FORMAT_NODE == name) ||
|
|
(IRR_XML_FORMAT_SCENE == name))
|
|
{
|
|
endreached = true;
|
|
}
|
|
break;
|
|
case io::EXN_ELEMENT:
|
|
if (IRR_XML_FORMAT_ATTRIBUTES == name)
|
|
{
|
|
// read attributes
|
|
io::IAttributes* attr = FileSystem->createEmptyAttributes(SceneManager->getVideoDriver());
|
|
attr->read(reader, true);
|
|
|
|
if (node)
|
|
node->deserializeAttributes(attr);
|
|
|
|
attr->drop();
|
|
}
|
|
else
|
|
if (IRR_XML_FORMAT_MATERIALS == name)
|
|
readMaterials(reader, node);
|
|
else
|
|
if (IRR_XML_FORMAT_ANIMATORS == name)
|
|
readAnimators(reader, node);
|
|
else
|
|
if (IRR_XML_FORMAT_USERDATA == name)
|
|
readUserData(reader, node, userDataSerializer);
|
|
else
|
|
if ((IRR_XML_FORMAT_NODE == name) ||
|
|
(IRR_XML_FORMAT_SCENE == name))
|
|
{
|
|
readSceneNode(reader, node, userDataSerializer);
|
|
}
|
|
else
|
|
{
|
|
os::Printer::log("Found unknown element in irrlicht scene file",
|
|
core::stringc(name).c_str());
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (endreached)
|
|
break;
|
|
}
|
|
if (node && userDataSerializer)
|
|
userDataSerializer->OnCreateNode(node);
|
|
}
|
|
|
|
//! reads materials of a node
|
|
void CSceneLoaderIrr::readMaterials(io::IXMLReader* reader, ISceneNode* node)
|
|
{
|
|
u32 nr = 0;
|
|
|
|
while(reader->read())
|
|
{
|
|
const wchar_t* name = reader->getNodeName();
|
|
|
|
switch(reader->getNodeType())
|
|
{
|
|
case io::EXN_ELEMENT_END:
|
|
if (IRR_XML_FORMAT_MATERIALS == name)
|
|
return;
|
|
break;
|
|
case io::EXN_ELEMENT:
|
|
if (IRR_XML_FORMAT_ATTRIBUTES == name)
|
|
{
|
|
// read materials from attribute list
|
|
io::IAttributes* attr = FileSystem->createEmptyAttributes(SceneManager->getVideoDriver());
|
|
attr->read(reader);
|
|
|
|
if (node && node->getMaterialCount() > nr)
|
|
{
|
|
SceneManager->getVideoDriver()->fillMaterialStructureFromAttributes(
|
|
node->getMaterial(nr), attr);
|
|
}
|
|
|
|
attr->drop();
|
|
++nr;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//! reads animators of a node
|
|
void CSceneLoaderIrr::readAnimators(io::IXMLReader* reader, ISceneNode* node)
|
|
{
|
|
while(reader->read())
|
|
{
|
|
const wchar_t* name = reader->getNodeName();
|
|
|
|
switch(reader->getNodeType())
|
|
{
|
|
case io::EXN_ELEMENT_END:
|
|
if (IRR_XML_FORMAT_ANIMATORS == name)
|
|
return;
|
|
break;
|
|
case io::EXN_ELEMENT:
|
|
if (IRR_XML_FORMAT_ATTRIBUTES == name)
|
|
{
|
|
// read animator data from attribute list
|
|
io::IAttributes* attr = FileSystem->createEmptyAttributes(SceneManager->getVideoDriver());
|
|
attr->read(reader);
|
|
|
|
if (node)
|
|
{
|
|
core::stringc typeName = attr->getAttributeAsString("Type");
|
|
ISceneNodeAnimator* anim = SceneManager->createSceneNodeAnimator(typeName.c_str(), node);
|
|
|
|
if (anim)
|
|
{
|
|
anim->deserializeAttributes(attr);
|
|
anim->drop();
|
|
}
|
|
}
|
|
|
|
attr->drop();
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//! reads user data of a node
|
|
void CSceneLoaderIrr::readUserData(io::IXMLReader* reader, ISceneNode* node, ISceneUserDataSerializer* userDataSerializer)
|
|
{
|
|
while(reader->read())
|
|
{
|
|
const wchar_t* name = reader->getNodeName();
|
|
|
|
switch(reader->getNodeType())
|
|
{
|
|
case io::EXN_ELEMENT_END:
|
|
if (IRR_XML_FORMAT_USERDATA == name)
|
|
return;
|
|
break;
|
|
case io::EXN_ELEMENT:
|
|
if (IRR_XML_FORMAT_ATTRIBUTES == name)
|
|
{
|
|
// read user data from attribute list
|
|
io::IAttributes* attr = FileSystem->createEmptyAttributes(SceneManager->getVideoDriver());
|
|
attr->read(reader);
|
|
|
|
if (node && userDataSerializer)
|
|
{
|
|
userDataSerializer->OnReadUserData(node, attr);
|
|
}
|
|
|
|
attr->drop();
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
} // scene
|
|
} // irr
|
|
|