khanat-opennel-code/code/nel/samples/georges/main.cpp

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/**
* \file main.cpp
* \date October 2004
* \author Matt Raykowski
*
* This sample shows how to load a Georges form and read parts from it.
*/
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
// Copyright (C) 2010 Winch Gate Property Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// System Includes
//
#include <stdio.h>
//
// NeL Includes
//
#include "nel/misc/debug.h"
#include "nel/georges/u_form_loader.h"
#include "nel/georges/u_form.h"
#include "nel/georges/u_form_elm.h"
#include "nel/georges/load_form.h"
#ifndef GF_DIR
# define GF_DIR "."
#endif
struct TPositionData
{
uint X, Y, Z;
/// This class must be serializable for the form to be packed.
void serial(NLMISC::IStream &f)
{
f.serial(X);
f.serial(Y);
f.serial(Z);
}
};
struct TSampleConfig
{
/// Load a form, if necessary, and store its data in the members of this class.
void readGeorges (const NLMISC::CSmartPtr<NLGEORGES::UForm> &form, const NLMISC::CSheetId &sheetId)
{
readForm(form);
}
void readGeorges (const NLMISC::CSmartPtr<NLGEORGES::UForm> &form, const std::string &sheetId)
{
readForm(form);
}
void readForm(const NLMISC::CSmartPtr<NLGEORGES::UForm> &form)
{
nlinfo("Loading a sample config object.");
// The system has already loaded the form and parsed it using a loader. So get the root node:
NLGEORGES::UFormElm &root = form->getRootNode();
// And start loading the form values into the object.
root.getValueByName(TestVal1, ".TestVal1");
root.getValueByName(TestVal2, ".TestVal2");
root.getValueByName(PosData.X,"PositionData.x");
root.getValueByName(PosData.Y,"PositionData.y");
root.getValueByName(PosData.Z,"PositionData.z");
// Get the array called "TestArray"
NLGEORGES::UFormElm *testArray;
root.getNodeByName(&testArray, ".TestArray");
if(testArray != NULL) {
// Get the size of the array.
uint size;
testArray->getArraySize(size);
// Cycle through the atoms in the array
for(uint idx=0 ; idx<size ; idx++) {
std::string arrayValue;
// Get the value of the array.
testArray->getArrayValue(arrayValue, idx);
// And insert it into our container.
TestArray.push_back(arrayValue);
}
}
// And so on. We'll skip the rest of the sheet, you get the idea.
// ...
}
/// This class must be serializable for the form to be packed.
void serial(NLMISC::IStream &f)
{
f.serial(TestVal1);
f.serial(TestVal2);
f.serial(PosData);
f.serialCont(TestArray);
}
/// This is called whenever the loader needs to remove an old sheet.
void removed()
{
}
/// This is used to make sure that changes in form/loader versions are correctly handled. This must be > 0.
static uint getVersion() { return 1; }
uint32 TestVal1;
uint32 TestVal2;
TPositionData PosData;
std::vector<std::string> TestArray;
};
/// This contains the TSampleConfig sheets.
std::map<NLMISC::CSheetId, TSampleConfig> MySampleConfigsSheets;
std::map<std::string, TSampleConfig> MySampleConfigs;
int main(void)
{
new NLMISC::CApplicationContext;
// get a pointer ready for the form loader.
NLGEORGES::UFormLoader *formLoader = NULL;
NLMISC::CPath::addSearchPath(GF_DIR, false, false);
try {
// set the name of the form you're going to load.
std::string sampleConfigFile = NLMISC::CPath::lookup("default.sample_config", false);
// check to see if CPath found the config.
if (!sampleConfigFile.empty()) {
// we'll use this to test retrieving vars.
bool res;
// get a form loader.
formLoader = NLGEORGES::UFormLoader::createLoader();
// this will hold the form we load - it must be contained in a smart pointer.
NLMISC::CSmartPtr<NLGEORGES::UForm> form;
// load the form.
form = formLoader->loadForm(sampleConfigFile.c_str());
// get the root of the form.
NLGEORGES::UFormElm &root = form->getRootNode();
// retrieve the two test values
uint32 testVal1, testVal2, badVar1;
root.getValueByName(testVal1, ".TestVal1");
root.getValueByName(testVal2, ".TestVal2");
// try and get a var that doesn't exist.
res=root.getValueByName(badVar1, ".Foobar");
if(res) {
nlinfo("This should never have matched.");
exit(1);
}
// and output them
nlinfo("Test Value 1: %d",testVal1);
nlinfo("Test Value 2: %d",testVal2);
nlinfo("Foo Retrieval was: %s", res ? "true" : "false");
// Retrieve data from a root-level named struct
uint xTest, yTest, zTest;
root.getValueByName(xTest,"PositionData.x");
root.getValueByName(yTest,"PositionData.y");
root.getValueByName(zTest,"PositionData.z");
nlinfo("Retrieved Position Data (x,y,z): %d, %d, %d",xTest,yTest,zTest);
// get a reference to the TestArray array...
NLGEORGES::UFormElm *testArray;
res=root.getNodeByName(&testArray, ".TestArray");
nlinfo("TestArray retrieval returned: %s", res ? "true" : "false");
// make sure it was there.
if(testArray != NULL) {
// get the size of the array.
uint size;
testArray->getArraySize(size);
// cycle through the atoms in the array
for(uint idx=0 ; idx<size ; idx++) {
// string to store our array values in.
std::string arrayValue;
// and get the value of the array, we know it's a string.
testArray->getArrayValue(arrayValue, idx);
nlinfo("Found TestArray atom: %s",arrayValue.c_str());
}
} else {
if(res==true)
nlinfo("TestArray wasn't configured properly but was found, double check the form.");
else
nlinfo("Something's wrong, the TestArray is missing from the form.");
}
// Next grab a set of structures from an array.
NLGEORGES::UFormElm *coolFiles;
res=root.getNodeByName(&coolFiles, ".CoolFilesInfo");
nlinfo("Retrieving CoolFilesInfo returned: %s", res ? "true" : "false");
if(coolFiles != NULL) {
uint size;
coolFiles->getArraySize(size);
// cycle through the structs in the array.
for(uint idx=0 ; idx<size ; idx++) {
// storage for our vars in the structs
std::string name, shortname;
uint rank, toptenrank;
// since we know the structure of the file, we know the array contains structs
// retrieve the struct for use.
NLGEORGES::UFormElm *files;
coolFiles->getArrayNode(&files, idx);
// we can now access this struct in the array as a root.
files->getValueByName(rank, ".Ranking");
files->getValueByName(toptenrank, ".TopTenRanking");
files->getValueByName(name, ".Name");
files->getValueByName(shortname, ".ShortName");
nlinfo("Retrieved struct %d: |%s| - %s at %d (%d)", idx, name.c_str(), shortname.c_str(), rank, toptenrank);
}
} else {
if(res==true)
nlinfo("CoolFilesInfo was found, but might have been entered incorrectly, double check the form.");
else
nlinfo("CoolFilesInfo wasn't found or there was a syntax error loading your form.");
}
// we can also access elements of an array by their backet identifier.
std::string bbool1, bbool2;
root.getValueByName(bbool1, ".TestByBracket[0]");
root.getValueByName(bbool2, ".TestByBracket[1]");
nlinfo("Bool Backet 1: %s, Bool Bracket 2: %s",bbool1.c_str(), bbool2.c_str());
// likewise you can access structures by index and dot notation. take the CoolFilesInfo.
// the following should return 1, the ranking for the Nevrax Presents element.
// and the 2nd one should return 'Crazy Car Jump' from that element.
uint rankTest;
std::string nameTest;
root.getValueByName(rankTest, ".CoolFilesInfo[2].Ranking");
root.getValueByName(nameTest, ".CoolFilesInfo[1].ShortName");
nlinfo("Retrieved .CoolFilesInfo[2].Ranking using bracket and dot notation: %d", rankTest);
nlinfo("Retrieved .CoolFilesInfo[1].ShortName using bracket and dot notation: %s", nameTest.c_str());
// if you set a value to a node name that doesn't exist, it's created. after running this you will see it listed in the form:
uint writeValue;
// first lets see if we can find it:
res=root.getValueByName(writeValue,".WriteVal");
if(res) // if it existed, save the value and increment it.
writeValue++;
else
writeValue=3;
// now set the value. created tells us if the value was creaed or just updated.
bool created;
root.setValueByName(writeValue,".WriteVal",&created);
if(created) {
nlinfo("WriteVal wasn't found and was created.");
} else {
nlinfo("Updated WriteVal, it already existed in the form.");
}
// and finally save the form out in case we made changes.
// if you're accessing a form read-only (not using set*) you can skip this.
NLMISC::COFile saveSample(sampleConfigFile);
form->write(saveSample);
nlinfo("Saved sample config file.");
} else {
// CPath didn't find the file, just print an error and exit.
nlinfo("Couldn't find the config file.");
exit(1);
}
// finished, unload the form loader.
NLGEORGES::UFormLoader::releaseLoader(formLoader);
} catch(...) {
// something went wrong, unload the form loader.
nlinfo("Caught an exception, quitting.");
NLGEORGES::UFormLoader::releaseLoader(formLoader);
}
// Now demonstrate the packed sheet system.
nlinfo("Begin loading packed sheets.");
::loadForm( "sample_config", "sample_configs.packed_sheets", MySampleConfigs, true, false);
nlinfo("Number of sheets loaded: %d", MySampleConfigs.size());
// Now demonstrate the packed sheet system using CSheetId's and the sheet_id.bin file.
nlinfo("Load packed sheets using CSheetId and the sheet_id.bin");
::loadForm( "sample_config", "sample_configs_sheets.packed_sheets", MySampleConfigsSheets, true, false);
nlinfo("Number of sheets loaded with CSheetId's: %d", MySampleConfigsSheets.size());
}