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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 Itai Shaked
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
**************************************************************************/
#include "plugin.h"
#ifdef HAVE_LCD_BITMAP
#define NUM_PARTICLES 100
static short particles[NUM_PARTICLES][2];
static struct plugin_api* rb;
static bool particle_exists(int particle)
{
if (particles[particle][0]>=0 && particles[particle][1]>=0 &&
particles[particle][0]<112 && particles[particle][1]<64)
return true;
else
return false;
}
static int create_particle(void)
{
int i;
for (i=0; i<NUM_PARTICLES; i++) {
if (!particle_exists(i)) {
particles[i][0]=(rb->rand()%112);
particles[i][1]=0;
return i;
}
}
return -1;
}
static void snow_move(void)
{
int i;
if (!(rb->rand()%2))
create_particle();
for (i=0; i<NUM_PARTICLES; i++) {
if (particle_exists(i)) {
rb->lcd_clearpixel(particles[i][0],particles[i][1]);
switch ((rb->rand()%7)) {
case 0:
particles[i][0]++;
break;
case 1:
particles[i][0]--;
break;
case 2:
break;
default:
particles[i][1]++;
break;
}
if (particle_exists(i))
rb->lcd_drawpixel(particles[i][0],particles[i][1]);
}
}
}
static void snow_init(void)
{
int i;
for (i=0; i<NUM_PARTICLES; i++) {
particles[i][0]=-1;
particles[i][1]=-1;
}
rb->lcd_clear_display();
}
enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
{
TEST_PLUGIN_API(api);
(void)(parameter);
rb = api;
snow_init();
while (1) {
snow_move();
rb->lcd_update();
rb->sleep(HZ/20);
if (rb->button_get(false) == BUTTON_OFF)
return false;
}
}
#endif
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