stk-code_catmod/src/material_manager.cpp
hikerstk 55c7bbe600 1) Explosions now work, though need a new texture and
better particle parameters.
2) Minor work on smoke particle system, not finished.


git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/branches/irrlicht@3573 178a84e3-b1eb-0310-8ba1-8eac791a3b58
2009-06-02 12:06:35 +00:00

199 lines
7.2 KiB
C++

// $Id$
//
// SuperTuxKart - a fun racing game with go-kart
// Copyright (C) 2004 Steve Baker <sjbaker1@airmail.net>
//
// This program 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 3
// of the License, or (at your option) any later version.
//
// This program 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 this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#include "material_manager.hpp"
#include <stdexcept>
#include <sstream>
#include "material.hpp"
#include "io/file_manager.hpp"
#include "io/xml_node.hpp"
#include "utils/string_utils.hpp"
MaterialManager *material_manager=0;
MaterialManager::MaterialManager()
{
/* Create list - and default material zero */
m_materials.reserve(256);
// We can't call init/loadMaterial here, since the global variable
// material_manager has not yet been initialised, and
// material_manager is used in the Material constructor.
// Therefore, the code for loading the material had to
// be moved into a separate function.
}
//-----------------------------------------------------------------------------
/** Searches for the material in the given texture, and calls a function
* in the material to set the irrlicht material flags.
* \param t Pointer to the texture.
* \param mb Pointer to the mesh buffer.
*/
void MaterialManager::setAllMaterialFlags(video::ITexture* t,
scene::IMeshBuffer *mb) const
{
const std::string image = StringUtils::basename(t->getName().c_str());
// Search backward so that temporary (track) textures are found first
for(int i = (int)m_materials.size()-1; i>=0; i-- )
{
if(m_materials[i]->getTexFname()==image)
m_materials[i]->setMaterialProperties(&(mb->getMaterial()));
} // for i
} // setAllMaterialFlags
//-----------------------------------------------------------------------------
int MaterialManager::addEntity(Material *m)
{
m_materials.push_back(m);
return (int)m_materials.size()-1;
}
//-----------------------------------------------------------------------------
void MaterialManager::reInit()
{
for(std::vector<Material*>::const_iterator i=m_materials.begin();
i!=m_materials.end(); i++)
{
delete *i;
}
m_materials.clear();
loadMaterial();
} // reInit
//-----------------------------------------------------------------------------
void MaterialManager::loadMaterial()
{
// Use temp material for reading, but then set the shared
// material index later, so that these materials are not popped
const std::string fname = "materials.xml";
std::string full_name = file_manager->getTextureFile(fname);
addSharedMaterial(full_name);
// Save index of shared textures
m_shared_material_index = (int)m_materials.size();
} // MaterialManager
//-----------------------------------------------------------------------------
void MaterialManager::addSharedMaterial(const std::string& filename)
{
// Use temp material for reading, but then set the shared
// material index later, so that these materials are not popped
if(filename=="")
{
std::ostringstream msg;
msg<<"FATAL: File '"<<filename<<"' not found\n";
throw std::runtime_error(msg.str());
}
if(!pushTempMaterial(filename))
{
std::ostringstream msg;
msg <<"FATAL: Parsing error in '"<<filename<<"'\n";
throw std::runtime_error(msg.str());
}
m_shared_material_index = (int)m_materials.size();
} // addSharedMaterial
//-----------------------------------------------------------------------------
bool MaterialManager::pushTempMaterial(const std::string& filename)
{
XMLNode *root = file_manager->createXMLTree(filename);
if(!root || root->getName()!="materials")
{
if(root) delete root;
return true;
}
for(unsigned int i=0; i<root->getNumNodes(); i++)
{
const XMLNode *node = root->getNode(i);
if(!node)
{
// We don't have access to the filename at this stage anymore :(
fprintf(stderr, "Unknown node in material.dat file\n");
exit(-1);
}
try
{
m_materials.push_back(new Material(node, m_materials.size()));
}
catch(std::exception& e)
{
// The message contains a '%s' for the filename
fprintf(stderr, e.what(), filename.c_str());
}
} // for i<xml->getNumNodes)(
delete root;
return true;
} // pushTempMaterial
//-----------------------------------------------------------------------------
void MaterialManager::popTempMaterial()
{
for(int i=(int)m_materials.size()-1; i>=this->m_shared_material_index; i--)
{
delete m_materials[i];
m_materials.pop_back();
} // for i
} // popTempMaterial
//-----------------------------------------------------------------------------
/** Returns the material of a given name, if it doesn't exist, it is loaded.
* Materials that are just loaded are not permanent, and so get deleted after
* a race (this is used to load temporary, track specific materials). To make
* material permanent, make_permanent must be set to true. This is used for
* the powerup_manager, since not all icons for the powerups are listed in the
* materials.dat file, causing the missing ones to be temporary only (and
* then get deleted after one race, causing the powerup_manager to have
* invalid pointers.
* \param fname Name of the material.
* \param is_full_path True if the name includes the path (defaults to false)
* \param make_permanent True if this material should be kept in memory
* (defaults to false)
*/
Material *MaterialManager::getMaterial(const std::string& fname,
bool is_full_path,
bool make_permanent)
{
if(fname=="")
{
// This happens while reading the stk_config file, which contains
// kart_properties information (but no icon file): since at this
// stage loadMaterial() hasn't been called, an exception can be
// triggered here (as it happened with visual c++), when
// m_materials[0] is accessed.
if(m_materials.size()>=1) return m_materials[0];
return NULL;
}
std::string basename=StringUtils::basename(fname);
// Search backward so that temporary (track) textures are found first
for(int i = (int)m_materials.size()-1; i>=0; i-- )
{
if(m_materials[i]->getTexFname()==basename) return m_materials[i];
}
// Add the new material
Material* m=new Material(fname, m_materials.size(), is_full_path);
m_materials.push_back(m);
if(make_permanent) m_shared_material_index = (int)m_materials.size();
return m ;
} // getMaterial