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/***************************************************************************
* HeightMapGenerator.h
*
* Sun Feb 4 16:17:38 2007
* Copyright 2007 Leo Wandersleb
* Email: Leo.Wandersleb@gmx.de
*/
/*
* 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.
*/
#ifndef _DYNAMICCLOUDS_H
#define _DYNAMICCLOUDS_H
#include "PerlinNoise.h"
#include "Settings.h"
#include <math.h>
#include <valarray>
namespace GAGCore
{
class DrawableSurface;
}
using namespace GAGCore;
class DynamicClouds
{
int granularity;
unsigned char maxAlpha;
float maxCloudSpeed;
float windStability;
float cloudStability;
float cloudSize;
float cloudHeight;
float rootOfMaxAlpha;
int wGrid, hGrid;
std::valarray<unsigned char> alphaMap;
public:
DynamicClouds(Settings * settings)
{
granularity=settings->cloudPatchSize;
maxAlpha=(unsigned char)settings->cloudMaxAlpha;
rootOfMaxAlpha=sqrt((float)maxAlpha);
maxCloudSpeed=settings->cloudMaxSpeed;
windStability=settings->cloudWindStability;
cloudStability=settings->cloudStability;
cloudSize=settings->cloudSize;
cloudHeight=(float)settings->cloudHeight/100.0f;
}
virtual ~DynamicClouds() { }
//void render(DrawableSurface *dest, const int viewPortX,
//const int viewPortY, const int w, const int h, const int time);
void compute(const int viewPortX, const int viewPortY, const int w, const int h, const int time);
void renderShadow(DrawableSurface *dest, const int w, const int h);
void renderOverlay(DrawableSurface *dest, const int w, const int h);
};
#endif /* _DYNAMICCLOUDS_H */
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