485a9cfbc9
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@5860 a1c6a512-1295-4272-9138-f99709370657
117 lines
2.9 KiB
C
117 lines
2.9 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2002 Itai Shaked
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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**************************************************************************/
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#include "plugin.h"
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#ifdef HAVE_LCD_BITMAP
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#define NUM_PARTICLES (LCD_WIDTH * LCD_HEIGHT / 72)
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static short particles[NUM_PARTICLES][2];
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static struct plugin_api* rb;
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static bool particle_exists(int particle)
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{
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if (particles[particle][0]>=0 && particles[particle][1]>=0 &&
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particles[particle][0]<LCD_WIDTH && particles[particle][1]<LCD_HEIGHT)
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return true;
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else
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return false;
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}
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static int create_particle(void)
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{
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int i;
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for (i=0; i<NUM_PARTICLES; i++) {
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if (!particle_exists(i)) {
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particles[i][0]=(rb->rand()%LCD_WIDTH);
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particles[i][1]=0;
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return i;
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}
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}
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return -1;
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}
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static void snow_move(void)
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{
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int i;
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if (!(rb->rand()%2))
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create_particle();
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for (i=0; i<NUM_PARTICLES; i++) {
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if (particle_exists(i)) {
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rb->lcd_clearpixel(particles[i][0],particles[i][1]);
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switch ((rb->rand()%7)) {
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case 0:
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particles[i][0]++;
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break;
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case 1:
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particles[i][0]--;
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break;
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case 2:
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break;
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default:
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particles[i][1]++;
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break;
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}
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if (particle_exists(i))
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rb->lcd_drawpixel(particles[i][0],particles[i][1]);
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}
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}
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}
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static void snow_init(void)
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{
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int i;
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for (i=0; i<NUM_PARTICLES; i++) {
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particles[i][0]=-1;
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particles[i][1]=-1;
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}
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rb->lcd_clear_display();
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}
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enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
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{
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int button;
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TEST_PLUGIN_API(api);
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(void)(parameter);
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rb = api;
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snow_init();
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while (1) {
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snow_move();
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rb->lcd_update();
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rb->sleep(HZ/20);
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button = rb->button_get(false);
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if (button == BUTTON_OFF)
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return PLUGIN_OK;
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else
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if (rb->default_event_handler(button) == SYS_USB_CONNECTED)
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return PLUGIN_USB_CONNECTED;
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}
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}
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#endif
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