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/* -*- Mode: C; tab-width: 4 -*- */
/* world --- world spinner */
#if !defined( lint ) && !defined( SABER )
static const char sccsid[] = "@(#)world.c 5.00 2000/11/01 xlockmore";
#endif
/*-
* Copyright (c) 1993 Matthew Moyle-Croft <matthew@moyle-croft.com>
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose and without fee is hereby granted,
* provided that the above copyright notice appear in all copies and that
* both that copyright notice and this permission notice appear in
* supporting documentation.
*
* This file is provided AS IS with no warranties of any kind. The author
* shall have no liability with respect to the infringement of copyrights,
* trade secrets or any patents by this file or any part thereof. In no
* event will the author be liable for any lost revenue or profits or
* other special, indirect and consequential damages.
*
* Revision History:
* 01-Nov-2000:
* 10-May-1997: Compatible with xscreensaver
* 04-Oct-1995: multiscreen patch, thanks to Grant McDorman <grant@isgtec.com>.
* 10-Jul-1995: Backward spinning jump fixed by Neale Pickett <zephyr@nmt.edu>.
* 17-Jul-1994: Got batchcount to work.
* 09-Jan-1994: Written [ Modified from image.c ]
* 29-Jul-1990: image.c written. Copyright (c) 1991 by Patrick J. Naughton.
*/
#ifdef STANDALONE
#define MODE_world
#define PROGCLASS "World"
#define HACK_INIT init_world
#define HACK_DRAW draw_world
#define world_opts xlockmore_opts
#define DEFAULTS "*delay: 100000 \n" \
"*count: -16 \n" \
"*ncolors: 200 \n"
#include "xlockmore.h" /* in xscreensaver distribution */
#else /* STANDALONE */
#include "xlock.h" /* in xlockmore distribution */
#endif /* STANDALONE */
#ifdef MODE_world
ModeSpecOpt world_opts =
{0, (XrmOptionDescRec *) NULL, 0, (argtype *) NULL, (OptionStruct *) NULL};
#ifdef USE_MODULES
ModStruct world_description =
{"world", "init_world", "draw_world", "release_world",
"refresh_world", "init_world", (char *) NULL, &world_opts,
100000, -16, 1, 1, 64, 0.3, "",
"Shows spinning Earths", 0, NULL};
#endif
#include "bitmaps/terra-00.xbm"
#include "bitmaps/terra-01.xbm"
#include "bitmaps/terra-02.xbm"
#include "bitmaps/terra-03.xbm"
#include "bitmaps/terra-04.xbm"
#include "bitmaps/terra-05.xbm"
#include "bitmaps/terra-06.xbm"
#include "bitmaps/terra-07.xbm"
#include "bitmaps/terra-08.xbm"
#include "bitmaps/terra-09.xbm"
#include "bitmaps/terra-10.xbm"
#include "bitmaps/terra-11.xbm"
#include "bitmaps/terra-12.xbm"
#include "bitmaps/terra-13.xbm"
#include "bitmaps/terra-14.xbm"
#include "bitmaps/terra-15.xbm"
#include "bitmaps/terra-16.xbm"
#include "bitmaps/terra-17.xbm"
#include "bitmaps/terra-18.xbm"
#include "bitmaps/terra-19.xbm"
#include "bitmaps/terra-20.xbm"
#include "bitmaps/terra-21.xbm"
#include "bitmaps/terra-22.xbm"
#include "bitmaps/terra-23.xbm"
#include "bitmaps/terra-24.xbm"
#include "bitmaps/terra-25.xbm"
#include "bitmaps/terra-26.xbm"
#include "bitmaps/terra-27.xbm"
#include "bitmaps/terra-28.xbm"
#include "bitmaps/terra-29.xbm"
#define NUM_EARTHS 30
#define SIZE_X terra00_width /* 64 */
#define SIZE_Y terra00_height /* 64 */
#define NUM_REV 4
#define MINWORLDS 1
static XImage Earths[NUM_EARTHS] =
{
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra00_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra01_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra02_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra03_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra04_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra05_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra06_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra07_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra08_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra09_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra10_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra11_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra12_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra13_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra14_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra15_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra16_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra17_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra18_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra19_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra20_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra21_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra22_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra23_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra24_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra25_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra26_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra27_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra28_bits, LSBFirst, 8, LSBFirst, 8, 1},
{SIZE_X, SIZE_Y, 0, XYBitmap, (char *) terra29_bits, LSBFirst, 8, LSBFirst, 8, 1}};
typedef struct {
int x;
int y;
unsigned long color;
int frame;
int direction;
} planetstruct;
typedef struct {
int width;
int height;
int nrows;
int ncols;
int xb;
int yb;
int frame_num;
int nplanets;
planetstruct *planets;
} worldstruct;
static worldstruct *worlds = (worldstruct *) NULL;
void
init_world(ModeInfo * mi)
{
int i;
worldstruct *wp;
if (worlds == NULL) {
if ((worlds = (worldstruct *) calloc(MI_NUM_SCREENS(mi),
sizeof (worldstruct))) == NULL)
return;
}
wp = &worlds[MI_SCREEN(mi)];
wp->frame_num = NUM_EARTHS * NUM_REV;
for (i = 0; i < NUM_EARTHS; i++)
Earths[i].bytes_per_line = 8;
wp->width = MI_WIDTH(mi);
wp->height = MI_HEIGHT(mi);
wp->ncols = wp->width / SIZE_X;
if (!wp->ncols)
wp->ncols = 1;
wp->nrows = wp->height / SIZE_Y;
if (!wp->nrows)
wp->nrows = 1;
wp->xb = (wp->width - SIZE_X * wp->ncols) / 2;
wp->yb = (wp->height - SIZE_Y * wp->nrows) / 2;
wp->nplanets = MI_COUNT(mi);
if (wp->nplanets < -MINWORLDS)
wp->nplanets = NRAND(-wp->nplanets - MINWORLDS + 1) + MINWORLDS;
else if (wp->nplanets < MINWORLDS)
wp->nplanets = MINWORLDS;
if (wp->nplanets > wp->ncols * wp->nrows)
wp->nplanets = wp->ncols * wp->nrows;
#ifndef NOFLASH
if (wp->nplanets > wp->ncols)
wp->nplanets = wp->ncols;
#endif
if (wp->planets != NULL)
free(wp->planets);
if ((wp->planets = (planetstruct *) malloc(wp->nplanets *
sizeof (planetstruct))) == NULL) {
return;
}
for (i = 0; i < wp->nplanets; i++)
wp->planets[i].x = wp->planets[i].y = -1;
MI_CLEARWINDOW(mi);
}
void
draw_world(ModeInfo * mi)
{
Display *display = MI_DISPLAY(mi);
GC gc = MI_GC(mi);
int i;
#ifndef NOFLASH
int *col, j;
#endif
worldstruct *wp;
if (worlds == NULL)
return;
wp = &worlds[MI_SCREEN(mi)];
if (wp->planets == NULL)
return;
#ifndef NOFLASH
if ((col = (int *) calloc(wp->ncols, sizeof (int))) == NULL)
return;
#endif
MI_IS_DRAWN(mi) = True;
if (wp->frame_num == NUM_EARTHS * NUM_REV) {
wp->frame_num = 0;
XSetForeground(display, gc, MI_BLACK_PIXEL(mi));
for (i = 0; i < wp->nplanets; i++) {
XFillRectangle(display, MI_WINDOW(mi), gc,
wp->xb + SIZE_X * wp->planets[i].x,
wp->yb + SIZE_Y * wp->planets[i].y,
SIZE_X, SIZE_Y);
#ifdef NOFLASH
wp->planets[i].x = NRAND(wp->ncols);
#else
do {
j = NRAND(wp->ncols);
if (!col[j])
wp->planets[i].x = j;
col[j]++;
} while (col[j] > 1);
#endif
wp->planets[i].y = NRAND(wp->nrows);
wp->planets[i].direction = (int) (LRAND() & 1);
wp->planets[i].frame = NRAND(NUM_EARTHS);
if (MI_NPIXELS(mi) > 2)
wp->planets[i].color = MI_PIXEL(mi, NRAND(MI_NPIXELS(mi)));
else
wp->planets[i].color = MI_WHITE_PIXEL(mi);
}
}
#ifndef NOFLASH
free(col);
#endif
for (i = 0; i < wp->nplanets; i++) {
XSetForeground(display, gc, wp->planets[i].color);
if (wp->planets[i].frame == NUM_EARTHS)
wp->planets[i].frame = 0;
else {
if ((wp->planets[i].frame < 0) && wp->planets[i].direction == 0)
wp->planets[i].frame = NUM_EARTHS - 1;
}
(void) XPutImage(display, MI_WINDOW(mi), gc,
(Earths + wp->planets[i].frame), 0, 0,
wp->xb + SIZE_X * wp->planets[i].x,
wp->yb + SIZE_Y * wp->planets[i].y,
SIZE_X, SIZE_Y);
(wp->planets[i].direction) ? wp->planets[i].frame++ : wp->planets[i].frame--;
}
wp->frame_num++;
}
void
release_world(ModeInfo * mi)
{
if (worlds != NULL) {
int screen;
for (screen = 0; screen < MI_NUM_SCREENS(mi); screen++)
if (worlds[screen].planets != NULL)
free(worlds[screen].planets);
free(worlds);
worlds = (worldstruct *) NULL;
}
}
void
refresh_world(ModeInfo * mi)
{
MI_CLEARWINDOW(mi);
}
#endif /* MODE_world */
|
