khanat-code-old/code/ryzom/client/src/weather_setup_client.cpp
2014-06-12 19:27:09 +02:00

115 lines
3.3 KiB
C++

// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
// 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/>.
#include "stdpch.h"
#include "weather_setup_client.h"
#include "precipitation.h"
#include "nel/georges/u_form_elm.h"
#include "nel/3d/u_particle_system_instance.h"
using namespace NLMISC;
H_AUTO_DECL(RZ_WeatherSetupClient)
//==================================================================================
/** Tool fct to blend 2 floats
*/
static inline void blendValue(float &dest, float f1, float f2, float blendFactor)
{
H_AUTO_USE(RZ_WeatherSetupClient)
dest = blendFactor * f2 + (1.f - blendFactor) * f1;
}
//==================================================================================
void CWeatherStateClient::setup(const CWeatherState &ws, std::map<std::string, CPrecipitation> &precipitationMap)
{
FXs.resize(ws.FXInfos.size());
for(uint k = 0; k < FXs.size(); ++k)
{
if (!ws.FXInfos[k].Name.empty())
{
FXs[k].Precipitation = &(precipitationMap[ws.FXInfos[k].Name]);
FXs[k].Ratio = ws.FXInfos[k].Ratio;
}
else
{
FXs[k].Precipitation = NULL;
FXs[k].Ratio = 0.f;
}
}
}
//==================================================================================
void CWeatherStateClient::blend(CWeatherStateClient &dest, const CWeatherStateClient &s1, const CWeatherStateClient &s2, float blendFactor)
{
H_AUTO_USE(RZ_WeatherSetupClient)
// FXs. Blend FXs ofthe 2 vectors togethers
dest.FXs.resize(s1.FXs.size());
//
uint numCommonFXs = 0; // number of fx in array 1 that are also in array 2
// Add / Blend FXs that are only in array 1, or in both arrays
uint l;
uint k;
for(k = 0; k < s1.FXs.size(); ++k)
{
dest.FXs[k].Precipitation = s1.FXs[k].Precipitation;
bool found = false;
// see if FX is in both vectors
for(l = 0; l < s2.FXs.size(); ++l)
{
if (s1.FXs[k].Precipitation == s2.FXs[l].Precipitation)
{
// yes, so blend the ratios
blendValue(dest.FXs[k].Ratio, s1.FXs[k].Ratio, s2.FXs[k].Ratio, blendFactor);
found = true;
++ numCommonFXs;
break;
}
}
if (!found)
{
// this FX is only in array 1
blendValue(dest.FXs[k].Ratio, s1.FXs[k].Ratio, 0, blendFactor);
}
}
// Add FXs that are only in array 2
dest.FXs.reserve(dest.FXs.size() + s2.FXs.size() - numCommonFXs);
for(k = 0; k < s2.FXs.size(); ++k)
{
bool inBothArrays = false;
// see if FX is in both vectors
for(l = 0; l < s1.FXs.size(); ++l)
{
if (s1.FXs[k].Precipitation == s2.FXs[l].Precipitation)
{
inBothArrays = true;
break;
}
}
if (!inBothArrays)
{
dest.FXs.push_back(s2.FXs[k]);
// this FX is only in array 2
blendValue(dest.FXs.back().Ratio, 0.f, s2.FXs[k].Ratio, blendFactor);
}
}
}