ftp://ftp.sunet.se/pub/vendor/sco/skunkware/osr5/x11/savers/xscreensaver/xscreensaver...

[xscreensaver] / hacks / vines.c

diff --git a/hacks/vines.c b/hacks/vines.c
deleted file mode 100644 (file)
index 4c562f9..0000000
--- a/hacks/vines.c
+++ /dev/null
@@ -1,142 +0,0 @@
-/* -*- Mode: C; tab-width: 4 -*-
- * vines --- another geometric pattern generator.
- */
-#if !defined( lint ) && !defined( SABER )
-static const char sccsid[] = "@(#)vines.c      4.02 97/04/01 xlockmore";
-#endif
-
-/* xlockmore mode written by Tracy Camp
- * campt@hurrah.com 1997
- * released to the public domain
- *
- * This was modifed from a 'screen saver' that a friend and I
- * wrote on our TI-8x calculators in high school physics one day
- * Basically another geometric pattern generator, this ones claim
- * to fame is a pseudo-fractal looking vine like pattern that creates
- * nifty whorls and loops.
- *
- * Revision History:
- * 10-May-97: jwz@jwz.org: turned into a standalone program.
- * 21-Mar-97:  David Hansen <dhansen@metapath.com>
- *             Updated mode to draw complete patterns on every
- *             iteration instead of growing the vine.  Also made
- *             adjustments to randomization and changed variable
- *             names to make logic easier to follow.
- */
-
-#ifdef STANDALONE
-# define PROGCLASS                                     "Vines"
-# define HACK_INIT                                     init_vines
-# define HACK_DRAW                                     draw_vines
-# define vines_opts                                    xlockmore_opts
-# define DEFAULTS              "*delay:        200000 \n"                      \
-                                               "*ncolors:      64     \n"                      \
-                                               "*eraseSpeed:   400 \n"                 \
-                                               "*eraseMode:    -1 \n"
-# include "xlockmore.h"                                /* from the xscreensaver distribution */
-# include "erase.h"
-#else  /* !STANDALONE */
-# include "xlock.h"                                    /* from the xlockmore distribution */
-#endif /* !STANDALONE */
-
-ModeSpecOpt vines_opts = {
-  0, NULL, 0, NULL, NULL };
-
-typedef struct {
-       int         a;
-       int         x1;
-       int         y1;
-       int         x2;
-       int         y2;
-       int         length;
-       int         iterations;
-       int         constant;
-       int         ang;
-       int         centerx;
-       int         centery;
-} vinestruct;
-
-static vinestruct *vines = NULL;
-
-void
-refresh_vines(ModeInfo * mi)
-{
-}
-
-void
-init_vines(ModeInfo * mi)
-{
-       Display    *display = MI_DISPLAY(mi);
-       vinestruct *fp;
-
-       if (vines == NULL) {
-               if ((vines = (vinestruct *) calloc(MI_NUM_SCREENS(mi), sizeof (vinestruct))) == NULL) {
-                       return;
-               }
-       }
-       fp = &vines[MI_SCREEN(mi)];
-
-       fp->iterations = 30 + NRAND(100);
-
-       XClearWindow(display, MI_WINDOW(mi));
-}
-
-void
-draw_vines(ModeInfo * mi)
-{
-       vinestruct *fp = &vines[MI_SCREEN(mi)];
-       Display    *display = MI_DISPLAY(mi);
-       GC          gc = MI_GC(mi);
-       int         i;
-
-       if (--(fp->iterations) == 0) {
-#ifdef STANDALONE
-         erase_full_window(MI_DISPLAY(mi), MI_WINDOW(mi));
-#endif /* STANDALONE */
-         init_vines(mi);
-       }
-
-       fp->centerx = NRAND(MI_WIN_WIDTH(mi));
-       fp->centery = NRAND(MI_WIN_HEIGHT(mi));
-
-       fp->ang = 60 + NRAND(720);
-       fp->length = 100 + NRAND(3000);
-       fp->constant = fp->length * (10 + NRAND(10));
-
-       fp->a = 0;
-       fp->x1 = 0;
-       fp->y1 = 0;
-       fp->x2 = 1;
-       fp->y2 = 0;
-
-       if (MI_NPIXELS(mi) > 2)
-               XSetForeground(display, gc, MI_PIXEL(mi, NRAND(MI_NPIXELS(mi))));
-       else
-               XSetForeground(display, gc, MI_WIN_WHITE_PIXEL(mi));
-
-
-       for (i = 0; i < fp->length; i++) {
-               XDrawLine(display, MI_WINDOW(mi), gc,
-                         fp->centerx + (fp->x1 / fp->constant),
-                         fp->centery - (fp->y1 / fp->constant),
-                         fp->centerx + (fp->x2 / fp->constant),
-                         fp->centery - (fp->y2 / fp->constant));
-
-               fp->a += (fp->ang * i);
-
-               fp->x1 = fp->x2;
-               fp->y1 = fp->y2;
-
-               fp->x2 += (int) (i * ((cos(fp->a) * 360) / (2 * M_PI)));
-               fp->y2 += (int) (i * ((sin(fp->a) * 360) / (2 * M_PI)));
-       }
-}
-
-void
-release_vines(ModeInfo * mi)
-{
-       if (vines != NULL) {
-               (void) free((void *) vines);
-               vines = NULL;
-       }
-}