--- /dev/null
+/*****************************************************************************
+** 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 <g2_win32.h>
+
+
+#define N 300
+#define W 400
+#define H 400
+
+int main()
+{
+ int d;
+ int x[N];
+ int y[N];
+ int c[N];
+ int i,t;
+
+ d=g2_open_win32(W, H, "simple_animation", 0);
+ 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;
+}