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/*
This file is part of Globulation 2, a free software real-time strategy game
http://www.globulation2.org
Copyright (C) 2001-2005 Stephane Magnenat & Luc-Olivier de Charriere and other contributors
for any question or comment contact us at <stephane at magnenat dot net> or <NuageBleu at gmail dot com>
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 <Magick++.h>
#include <vector>
#include <iostream>
#include <sstream>
#include <fstream>
#include <algorithm>
using namespace std;
using namespace Magick;
struct Frame
{
int x, y, w, h;
int plane;
};
vector<Frame> frames;
vector<Image> planes;
unsigned initialTexSize = 256;
class Layouter
{
protected:
unsigned texsize;
unsigned posx;
unsigned posy;
unsigned maxy;
public:
Layouter()
{
texsize = initialTexSize;
posx = 0;
posy = 0;
maxy = 0;
}
void writeFrame(const Geometry &frameSize, const Image &frame, bool doDraw)
{
Frame f;
f.x = posx;
f.y = posy;
f.w = frameSize.width();
f.h = frameSize.height();
f.plane = planes.size() - 1;
if (doDraw)
planes[planes.size() - 1].draw(DrawableCompositeImage(posx, posy, frame));
frames.push_back(f);
}
bool layout(size_t count, char *files[], bool doDraw)
{
planes.clear();
planes.push_back(Image(Geometry(texsize, texsize), Color("transparent")));
frames.clear();
posx = 0;
posy = 0;
maxy = 0;
for (size_t i=0; i<count; i++)
{
Image frame(files[i]);
frame.matte(true);
Geometry size = frame.size();
if ( (posy + size.height() <= texsize) && (posx + size.width() <= texsize) )
{
writeFrame(size, frame, doDraw);
posx += size.width();
maxy = max(maxy, posy + size.height());
}
else if ( (maxy + size.height() <= texsize) && (size.width() <= texsize) )
{
posy = maxy;
posx = 0;
writeFrame(size, frame, doDraw);
posx += size.width();
maxy = max(maxy, posy + size.height());
}
else
{
if ((size.width() > texsize) || (size.height() > texsize))
return false;
planes.push_back(Image(Geometry(texsize, texsize), Color("transparent")));
posx = posy = maxy = 0;
writeFrame(size, frame, doDraw);
posx += size.width();
maxy = max(maxy, posy + size.height());
}
}
return true;
}
bool findBestLayout(size_t count, char *files[])
{
unsigned oldTexSize;
bool layoutResult;
do
{
oldTexSize = texsize;
texsize >>= 1;
cout << "Trying texture of " << texsize << endl;
layoutResult = layout(count, files, false);
}
while (layoutResult && (frames.size() > 0) && (planes.size() == 1) && (texsize > 0));
texsize = oldTexSize;
cout << "Using texture of " << texsize << endl;
layoutResult = layout(count, files, true);
return (frames.size() != 0) && layoutResult;
}
void writeSpritePlanes(const char *spriteName)
{
for (size_t i=0; i<planes.size(); i++)
{
ostringstream planeFileName;
planeFileName << spriteName << ".plane" << i << ".png";
planes[i].depth(8);
planes[i].write(planeFileName.str());
}
}
void writeSpriteText(const char *spriteName)
{
ostringstream spriteFileName;
spriteFileName << spriteName << ".sprite";
ofstream spriteFile(spriteFileName.str().c_str());
if (spriteFile)
{
spriteFile << "frameCount = " << frames.size() << ";\n";
spriteFile << "planeFileName = " << spriteName << ";\n";
for (size_t i=0; i<frames.size(); i++)
{
spriteFile << i << "\n";
spriteFile << "{\n";
spriteFile << "\tx = " << frames[i].x << ";\n";
spriteFile << "\ty = " << frames[i].y << ";\n";
spriteFile << "\tw = " << frames[i].w << ";\n";
spriteFile << "\th = " << frames[i].h << ";\n";
spriteFile << "\tplane = " << frames[i].plane << ";\n";
spriteFile << "}\n";
}
spriteFile << endl;
}
else
{
cerr << "Can't create sprite description file " << spriteFileName.str() << endl;
exit(3);
}
}
};
void usage(const char *exeName)
{
cerr << "Usage:\n" << exeName << " (-maxtexturesize) [sprite name] [frame images] ..." << endl;
}
int main(int argc, char *argv[])
{
if (argc < 3)
{
usage(argv[0]);
return 1;
}
if (argv[1][0] == '-')
{
initialTexSize = atoi(&argv[1][1]);
cout << "Changing initialTexSize to " << initialTexSize << endl;
argc--;
argv++;
}
Layouter l;
try
{
if (l.findBestLayout(argc-2, argv+2))
{
l.writeSpritePlanes(argv[1]);
l.writeSpriteText(argv[1]);
}
else
cerr << "Can't find a suitable layout !" << endl;
}
catch ( Exception &error_ )
{
cerr << "Caught exception: " << error_.what() << endl;
}
return 0;
}
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