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/*****************************************************************************
** Copyright (C) 1998-2001 Ljubomir Milanovic & Horst Wagner
** This file is part of the g2 library
**
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Lesser General Public
** License as published by the Free Software Foundation; either
** version 2.1 of the License, or (at your option) any later version.
**
** This library 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
** Lesser General Public License for more details.
**
** You should have received a copy of the GNU Lesser General Public
** License along with this library; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
******************************************************************************/
#include <stdio.h>
#include <g2.h>
#include <stdlib.h>
#ifdef DO_X11
#include <g2_X11.h>
#endif
#ifdef DO_WIN32
#include <g2_win32.h>
#endif
#define N 300
#define W 400
#define H 400
int main()
{
int d,dwin,dX11;
int x[N];
int y[N];
int c[N];
int i,t;
d=g2_open_vd(); /* open virtual device */
printf("Random Walk demo\n");
#ifdef DO_WIN32
printf("Adding win32..\n");
dwin=g2_open_win32(W, H, "simple_animation", 0);
g2_attach(d, dwin);
#endif
#ifdef DO_X11
printf("Adding X11.. (X11 might flicker and not be usable)\n");
dX11=g2_open_X11(W, H);
g2_attach(d, dX11);
#endif
g2_set_auto_flush(d,0);
for (i=0;i<N;i++)
{
x[i] = rand()%(W/4)+H/2;
y[i] = rand()%(H/4)+W/2;
c[i] = rand()%16;
}
for (t=0; t<1000; t++)
{
g2_clear(d);
for (i=0; i<N; i++)
{
g2_filled_circle(d,(double)x[i],(double)y[i],(double)5);
g2_pen(d,c[i]);
x[i] += (rand()%2) * 2 - 1;
y[i] += (rand()%2) * 2 - 1;
}
g2_flush(d);
}
getchar();
return 0;
}
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