6.09HEADmaster

1 files changed, 0 insertions, 740 deletions

diff --git a/hacks/whirlygig.c b/hacks/whirlygig.c
deleted file mode 100644
index 8c3bd1f..0000000
--- a/hacks/whirlygig.c
+++ /dev/null
@@ -1,740 +0,0 @@
-/*  Whirlygig -- an experiment in X programming
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation.  No representations are made about the suitability of this
- * software for any purpose.  It is provided "as is" without express or 
- * implied warranty.
- *
- *  When I was in trigonometry class as a kid, I remember being fascinated
- *  by the beauty of the shapes one receives when playing with sine waves
- *  Here is a little experiment to show that beauty is simple
- */
-
-#include <stdio.h>
-#include <math.h>
-#include "screenhack.h"
-
-#ifdef HAVE_DOUBLE_BUFFER_EXTENSION
-# include "xdbe.h"
-#endif /* HAVE_DOUBLE_BUFFER_EXTENSION */
-
-#define NCOLORS 100
-#define FULL_CYCLE 429496729
-#define START_ARC 0
-#define END_ARC 23040
-
-struct info {
-/*    Bool writable; / * Is the screen writable */
-    double xspeed; /* A factor to modify the horizontal movement */
-    double yspeed; /* A factor to modify vertical movement */
-    double xamplitude;
-    double yamplitude;
-    int whirlies; /*  How many whirlies per line do you want? */
-    int nlines;   /*  How many lines of whirlies do you want? */
-    int half_width;         /* 1/2 the width of the screen */
-    int half_height;
-    int speed;
-    int trail;
-    int color_modifier;
-    double xoffset;
-    double yoffset;
-    double offset_period;
-    Bool wrap;
-};
-
-enum object_mode {
-    spin_mode, funky_mode, circle_mode, linear_mode, test_mode, fun_mode, innie_mode, lissajous_mode
-};
-
-struct state {
-  Display *dpy;
-  Window window;
-
-    XGCValues gcv;      /* The structure to hold the GC data */
-    XWindowAttributes xgwa;       /*  A structure to hold window data */
-    Pixmap b, ba;	/* double-buffer to reduce flicker */
-#ifdef HAVE_DOUBLE_BUFFER_EXTENSION
-    Bool dbeclear_p;
-    XdbeBackBuffer backb;
-#endif /* HAVE_DOUBLE_BUFFER_EXTENSION */
-
-    GC fgc, bgc;
-    int screen;
-    Bool dbuf;
-
-    unsigned long int current_time; /* The global int telling the current time */
-    unsigned long int start_time;
-    struct info  *info;
-    char *xmode_str, *ymode_str; /* holds the current mode for x and y computation */
-
- /* pos is the current position x,y -- last_x contains one cell of
-    every x coordinate for every position of every whirly in every
-    line up to 100 whirlies in 100 lines -- lasy_y and last_size hold
-    the same information for y and size respectively */
-
-    int pos[2], last_x[100][100], last_y[100][100], last_size[100][100];
-    int current_color;
-    Bool wrap;
-    int xmode, ymode;
-    double modifier;    /* for innie */
-
-   XColor colors[NCOLORS];
-   int ncolors;
-   int explaining;
-};
-
-static void draw_explain_string(struct state *, int, int, Display *, Window, GC);
-static void spin(struct state *, unsigned long int, struct info *, int *, int);
-static void funky(struct state *, unsigned long int, struct info *, int *, int);
-static void circle(struct state *, unsigned long int, struct info *, int *, int);
-static void fun(struct state *, unsigned long int, struct info *, int *, int);
-static void linear(struct state *, unsigned long int, struct info *, int *, int);
-static void lissajous(struct state *, unsigned long int, struct info *, int *, int);
-static void test(struct state *, unsigned long int, struct info *, int *, int);
-static void innie(struct state *, unsigned long int, struct info *, int *, int, double);
-
-
-
-static const char spin_explanation[] =
-"Spin mode is a simple sin/cos with every argument modified";
-
-static const char funky_explanation[] =
-"Funky mode is me goofing off.";
-
-static const char circle_explanation[] =
-"Circle mode graphs the x and y positions as you trace the edge of a circle over time.";
-
-static const char linear_explanation[] =
-"Linear mode draws a straight line";
-
-static const char test_explanation[] =
-"Test mode is a mode that I play around with ideas in.";
-
-static const char fun_explanation[] =
-"Fun mode is the coolest.";
-
-static const char innie_explanation[] =
-"Innie mode does something or other. Looks cool, though.";
-
-static const char lissajous_explanation[] =
-"Lissajous mode draws a slightly modified lissajous curve";
-
-static void
-draw_explain_string(struct state *st, int mode, int offset, Display *dpy, Window window, GC fgc) 
-{
-  switch(mode) {
-  case spin_mode:
-    XDrawString(st->dpy, st->window, st->fgc, 50, offset, 
-                (char*) spin_explanation, strlen(spin_explanation));
-    break;
-  case funky_mode:
-    XDrawString(st->dpy, st->window, st->fgc, 50, offset, 
-                (char*) funky_explanation, strlen(funky_explanation));
-    break;
-  case circle_mode:
-    XDrawString(st->dpy, st->window, st->fgc, 50, offset, 
-                (char*) circle_explanation, strlen(circle_explanation));
-    break;
-  case linear_mode:
-    XDrawString(st->dpy, st->window, st->fgc, 50, offset, 
-                (char*) linear_explanation, strlen(linear_explanation));
-    break;
-  case test_mode:
-    XDrawString(st->dpy, st->window, st->fgc, 50, offset, 
-                (char*) test_explanation, strlen(test_explanation));
-    break;
-  case fun_mode:
-    XDrawString(st->dpy, st->window, st->fgc, 50, offset, 
-                (char*) fun_explanation, strlen(fun_explanation));
-    break;
-  case innie_mode:
-    XDrawString(st->dpy, st->window, st->fgc, 50, offset, 
-                (char*) innie_explanation, strlen(innie_explanation));
-    break;
-  case lissajous_mode:
-    XDrawString(st->dpy, st->window, st->fgc, 50, offset, 
-                (char*) lissajous_explanation, strlen(linear_explanation));    
-  }
-}
-
-static void
-funky(struct state *st, unsigned long int the_time, struct info *info, int pos[], int index)
-{
-    double new_time = ((the_time % 360 ) / 180.0) * M_PI;
-    if (index == 0) {
-        double time_modifier = cos(new_time / 180.0);
-        double the_cos = cos((new_time * (double)st->info->xspeed) + (time_modifier * 80.0));
-        double dist_mod_x = cos(new_time) * (st->info->half_width - 50);
-        st->pos[index]= st->info->xamplitude * (the_cos * dist_mod_x) + st->info->half_width;
-    }
-    else {
-        double new_time = ((the_time % 360 ) / 180.0) * M_PI;
-        double time_modifier = sin(new_time / 180.0);
-        double the_sin = sin((new_time * (double)st->info->yspeed) + (time_modifier * 80.0));
-        double dist_mod_y = sin(new_time) * (st->info->half_height - 50);
-        st->pos[index] = st->info->yamplitude * (the_sin * dist_mod_y) + st->info->half_height;
-    }
-}
-
-static void
-innie(struct state *st, unsigned long int the_time, struct info *info, int pos[], int index, double modifier)
-{
-    double frequency = 2000000.0 + (st->modifier * cos(((double)the_time / 100.0)));
-    double arg = (double)the_time / frequency;
-    double amplitude = 200.0 * cos(arg);
-    double fun = 150.0 * cos((double)the_time / 2000.0);
-    int vert_mod, horiz_mod;
-    if (index == 0) {
-        horiz_mod = (int)(fun * cos((double)the_time / 100.0)) + st->info->half_width;
-        st->pos[index] = (amplitude * cos((double)the_time / 100.0 * st->info->xspeed)) + horiz_mod;
-    }
-    else {
-        vert_mod = (int)(fun * sin((double)the_time / 100.0)) + st->info->half_height;
-        st->pos[index] = (amplitude * sin((double)the_time / 100.0 * st->info->yspeed)) + vert_mod;
-    }
-}
-
-static void
-lissajous(struct state *st, unsigned long int the_time, struct info *info, int pos[], int index)
-{
-      /*  This is a pretty standard lissajous curve
-           x = a sin(nt + c) 
-           y = b sin(t) 
-           The n and c modifiers are cyclic as well, however... */
-  int result;
-  double time = (double)the_time / 100.0;
-  double fun = 15.0 * cos((double)the_time / 800.0);
-  double weird = cos((time / 1100000.0) / 1000.0);
-
-  if (index == 0) {
-      result = st->info->xamplitude * 200.0 * sin((weird * time) + fun) + st->info->half_width;
-  }
-  else {
-      result = st->info->yamplitude * 200.0 * sin(time) + st->info->half_height;
-  }
-  st->pos[index] = result;
-} 
-
-static void
-circle(struct state *st, unsigned long int the_time, struct info *info, int pos[], int index)
-{
-    int result;
-    if (index == 0) {
-        result = st->info->xamplitude * (cos((double)the_time / 100.0 * st->info->xspeed) * (st->info->half_width / 2)) + st->info->half_width;
-    }
-    else {
-        result = st->info->yamplitude * (sin((double)the_time / 100.0 * st->info->yspeed) * (st->info->half_height / 2)) + st->info->half_height;
-    }
-    st->pos[index] = result;
-}
-
-#if 0
-static void
-mod(unsigned long int the_time, struct info *info, int pos[], int index)
-{
-    int amplitude;
-    int max = st->info->half_width;
-    if ((the_time % (max * 2)) < max)
-        amplitude = max - ((the_time % (max * 2)) - max);
-    else
-        amplitude = the_time % (max * 2);
-    amplitude = amplitude - max;
-}
-#endif
-
-static void
-spin(struct state *st, unsigned long int the_time, struct info *info, int pos[], int index)
-{
-    double funky = (((the_time % 360) * 1.0) / 180.0) * M_PI;
-    if (index ==0) {
-    double the_cos = cos((double)the_time / (180.0 * st->info->xspeed));
-    double dist_mod_x = cos((double)funky) * (st->info->half_width - 50);
-    st->pos[index] = st->info->xamplitude * (the_cos * dist_mod_x) + st->info->half_width;
-    }
-    else {
-    double the_sin = sin((double)the_time / (180.0 * st->info->yspeed));
-    double dist_mod_y = sin((double)funky) * (st->info->half_height - 50);
-    st->pos[index] = st->info->yamplitude * (the_sin * dist_mod_y) + st->info->half_height;
-    }
-}
-
-static void
-fun(struct state *st, unsigned long int the_time, struct info *info, int pos[], int index)
-{
-    int amplitude;
-    int max = st->info->half_width;
-    if ((the_time % (max * 2)) < max)
-        amplitude = max - ((the_time % (max * 2)) - max);
-    else
-        amplitude = the_time % (max * 2);
-    amplitude = amplitude - max;
-    if (index ==0) {
-        st->pos[index] = (amplitude * cos((double)the_time / 100.0 * st->info->xspeed)) + st->info->half_width;
-    }
-    else {
-        st->pos[index] = (amplitude * sin((double)the_time / 100.0 * st->info->yspeed)) + st->info->half_height;
-    }
-}
-
-static void
-linear(struct state *st, unsigned long int the_time, struct info *info, int pos[], int index)
-{
-    if (index == 0)   /* Calculate for the x axis */
-        st->pos[index] = ((the_time / 2) % (st->info->half_width * 2));
-    else
-        st->pos[index] = ((the_time / 2) % (st->info->half_height * 2));
-}
-
-static void
-test(struct state *st, unsigned long int the_time, struct info *info, int pos[], int index)
-{
-    if (index == 0) {
-        st->pos[index] = st->info->xamplitude * (cos((double)the_time / 100.0 * st->info->xspeed) * (st->info->half_width / 2)) + st->info->half_width;
-    }
-    else {
-        st->pos[index] = st->info->yamplitude * (sin((double)the_time / 100.0 * st->info->yspeed) * (st->info->half_height / 2)) + st->info->half_height;
-    }   
-}
-
-static int preen(int current, int max) {
-    if (current > max)
-        current=current-max;
-    if (current < 0)
-        current=current+max;
-    return(current);
-}
-
-#if 0
-static void
-smoothen(struct state *st, int x, int lastx, int y, int lasty, int size, int last_color, XColor *colors, Display *dpy, Window window, GC bgc, int screen, struct info *info)
-{
-    double xdistance = abs((double)x-(double)lastx);
-    double ydistance = abs((double)y-(double)lasty);
-    double distance = sqrt(((xdistance * xdistance) + (ydistance * ydistance)) );
-    double slope = (((double)y-(double)lasty) / ((double)x-(double)lastx));
-    printf("Starting smoothen with values: %f, %f, %f, %f\n", xdistance, ydistance, distance, slope);
-    if (distance > 2.0) {
-        int newx = (int)((xdistance / distance) * slope);
-        int newy = (int)((ydistance / distance) * slope);
-        if (! st->info->trail) {
-            XSetForeground(st->dpy, st->bgc, BlackPixel(st->dpy, st->screen));
-            XFillArc(st->dpy, st->window, st->bgc, lastx, lasty, size, size, START_ARC, END_ARC);
-        }
-        XSetForeground(st->dpy, st->bgc, st->colors[last_color].pixel);
-        XFillArc(st->dpy, st->window, st->bgc, newx, newy, size, size, START_ARC, END_ARC);
-        smoothen(st, newx, x, newy, y, size, last_color, st->colors, st->dpy, st->window, st->bgc, st->screen, st->info);
-    }
-}
-#endif
-
-
-static void *
-whirlygig_init (Display *dpy, Window window)
-{
-  struct state *st = (struct state *) calloc (1, sizeof(*st));
-  st->dpy = dpy;
-  st->window = window;
-
-  st->ncolors = NCOLORS;
-
-    st->dbuf = get_boolean_resource (st->dpy, "doubleBuffer", "Boolean");
-
-# ifdef HAVE_JWXYZ	/* Don't second-guess Quartz's double-buffering */
-    st->dbuf = False;
-# endif
-
-    st->start_time = st->current_time;
-    st->info = (struct info *)malloc(sizeof(struct info));
-
-    st->screen = DefaultScreen(st->dpy);
-    XGetWindowAttributes (st->dpy, st->window, &st->xgwa);
-    if (st->dbuf)
-      {
-#ifdef HAVE_DOUBLE_BUFFER_EXTENSION
-        if (get_boolean_resource(st->dpy,"useDBE","Boolean"))
-          {
-            st->dbeclear_p = get_boolean_resource (st->dpy, "useDBEClear",
-                                                   "Boolean");
-            if (st->dbeclear_p)
-              st->b = xdbe_get_backbuffer (st->dpy, st->window, XdbeBackground);
-            else
-              st->b = xdbe_get_backbuffer (st->dpy, st->window, XdbeUndefined);
-            st->backb = st->b;
-          }
-#endif /* HAVE_DOUBLE_BUFFER_EXTENSION */
-
-	if (!st->b)
-	  {
-	    st->ba = XCreatePixmap (st->dpy, st->window, st->xgwa.width, st->xgwa.height,st->xgwa.depth);
-	    st->b = st->ba;
-	  }
-      }
-    else
-      {
-	st->b = st->window;
-      }
-
-    st->gcv.foreground = get_pixel_resource(st->dpy, st->xgwa.colormap, "foreground", "Foreground");
-    st->fgc = XCreateGC (st->dpy, st->b, GCForeground, &st->gcv);
-    st->gcv.foreground = get_pixel_resource(st->dpy, st->xgwa.colormap, "background", "Background");
-    st->bgc = XCreateGC (st->dpy, st->b, GCForeground, &st->gcv);
-
-#ifdef HAVE_JWXYZ  /* #### should turn off double-buffering instead */
-    jwxyz_XSetAntiAliasing (dpy, st->fgc, False);
-    jwxyz_XSetAntiAliasing (dpy, st->bgc, False);
-#endif
-
-    {
-      Bool writable_p = False;
-    make_uniform_colormap (st->xgwa.screen, st->xgwa.visual,
-                           st->xgwa.colormap, st->colors, &st->ncolors,
-                           True, &writable_p, True);
-    }
-
-    if (st->ba) XFillRectangle (st->dpy, st->ba, st->bgc, 0, 0, st->xgwa.width, st->xgwa.height);
-
-        /* info is a structure holding all the random pieces of information I may want to 
-           pass to my baby functions -- much of it I may never use, but it is nice to
-           have around just in case I want it to make a funky function funkier */
-/*    info->writable = get_boolean_resource (dpy, "cycle", "Boolean"); */
-    st->info->xspeed = get_float_resource(st->dpy, "xspeed" , "Float");
-    st->info->yspeed = get_float_resource(st->dpy, "yspeed" , "Float");
-    st->info->xamplitude = get_float_resource(st->dpy, "xamplitude", "Float");
-    st->info->yamplitude = get_float_resource(st->dpy, "yamplitude", "Float");
-    st->info->offset_period = get_float_resource(st->dpy, "offset_period", "Float");
-    st->info->whirlies = get_integer_resource(st->dpy, "whirlies", "Integer");
-    st->info->nlines = get_integer_resource(st->dpy, "nlines", "Integer");
-    st->info->half_width = st->xgwa.width / 2;
-    st->info->half_height = st->xgwa.height / 2;
-    st->info->speed = get_integer_resource(st->dpy, "speed" , "Integer");
-    st->info->trail = get_boolean_resource(st->dpy, "trail", "Integer");
-    st->info->color_modifier = get_integer_resource(st->dpy, "color_modifier", "Integer");
-    st->info->xoffset = get_float_resource(st->dpy, "xoffset", "Float");
-    st->info->yoffset = get_float_resource(st->dpy, "yoffset", "Float");
-    st->xmode_str = get_string_resource(st->dpy, "xmode", "Mode");
-    st->ymode_str = get_string_resource(st->dpy, "ymode", "Mode");
-    st->wrap = get_boolean_resource(st->dpy, "wrap", "Boolean");
-    st->modifier = 3000.0 + frand(1500.0);
-    if (! st->xmode_str) st->xmode = spin_mode;
-    else if (! strcmp (st->xmode_str, "spin")) st->xmode = spin_mode;
-    else if (! strcmp (st->xmode_str, "funky")) st->xmode = funky_mode;
-    else if (! strcmp (st->xmode_str, "circle")) st->xmode = circle_mode;
-    else if (! strcmp (st->xmode_str, "linear")) st->xmode = linear_mode;
-    else if (! strcmp (st->xmode_str, "test")) st->xmode = test_mode;
-    else if (! strcmp (st->xmode_str, "fun")) st->xmode = fun_mode;
-    else if (! strcmp (st->xmode_str, "innie")) st->xmode = innie_mode;
-    else if (! strcmp (st->xmode_str, "lissajous")) st->xmode = lissajous_mode;
-    else {
-        st->xmode = random() % (int) lissajous_mode;
-    }
-    if (! st->ymode_str) st->ymode = spin_mode;
-    else if (! strcmp (st->ymode_str, "spin")) st->ymode = spin_mode;
-    else if (! strcmp (st->ymode_str, "funky")) st->ymode = funky_mode;
-    else if (! strcmp (st->ymode_str, "circle")) st->ymode = circle_mode;
-    else if (! strcmp (st->ymode_str, "linear")) st->ymode = linear_mode;
-    else if (! strcmp (st->ymode_str, "test")) st->ymode = test_mode;
-    else if (! strcmp (st->ymode_str, "fun")) st->ymode = fun_mode;
-    else if (! strcmp (st->ymode_str, "innie")) st->ymode = innie_mode;
-    else if (! strcmp (st->ymode_str, "lissajous")) st->ymode = lissajous_mode;
-    else {
-        st->ymode = random() % (int) lissajous_mode;
-    }
-
-    if (get_integer_resource(st->dpy, "start_time", "Integer") == -1)
-        st->current_time = (unsigned long int)(random());
-    else
-        st->current_time = get_integer_resource(st->dpy, "start_time", "Integer");
-    if (st->info->whirlies == -1)
-        st->info->whirlies = 1 + (random() % 15);
-    if (st->info->nlines == -1)
-        st->info->nlines = 1 + (random() % 5);
-    if (st->info->color_modifier == -1)
-        st->info->color_modifier = 1 + (random() % 25);
-    if (get_boolean_resource(st->dpy, "explain", "Integer"))
-      st->explaining = 1;
-    st->current_color = 1 + (random() % NCOLORS);
-
-  return st;
-}
-
-static unsigned long
-whirlygig_draw (Display *dpy, Window window, void *closure)
-{
-  struct state *st = (struct state *) closure;
-  int wcount;  /* wcount is a counter incremented for every whirly take note of
-                  internal_time before you mess with it */
-  int change_time = 4000;
-
-  if (st->explaining == 1) {
-    XClearWindow (st->dpy, st->window);
-    draw_explain_string(st, st->xmode, st->info->half_height-100, 
-                        st->dpy, st->window, st->fgc);
-    st->explaining++;
-    return 3000000;
-  } else if (st->explaining == 2) {
-    XClearWindow (st->dpy, st->window);
-    st->explaining = 0;
-  }
-
-  if (! strcmp (st->xmode_str, "change") && ! strcmp (st->ymode_str, "change")) {
-    if ((st->current_time - st->start_time) > change_time) {
-      st->start_time = st->current_time;
-      st->xmode = 1 + (random() % 4);
-      st->ymode = 1 + (random() % 4);
-    }
-  }
-  else if (! strcmp (st->xmode_str, "change")) {
-    if ((st->current_time - st->start_time) > change_time) {
-      st->start_time = st->current_time;
-      st->xmode = 1 + (random() % 4);
-    }
-  }
-  else if (! strcmp (st->ymode_str, "change")) {
-    if ((st->current_time - st->start_time) > change_time) {
-      st->start_time = st->current_time;
-      st->ymode = 1 + (random() % 3);
-      printf("Changing ymode to %d\n", st->ymode);
-    }
-  }
-  if (++st->current_color >= NCOLORS)
-    st->current_color = 0;
-  for (wcount = 0; wcount < st->info->whirlies; wcount++) {
-    int lcount; /* lcount is a counter for every line -- take note of the offsets changing */
-    int internal_time = 0;
-    int color_offset = (st->current_color + (st->info->color_modifier * wcount)) % NCOLORS;
-    if (st->current_time != 0)
-      /* I want the distance between whirlies to increase more each whirly */
-      internal_time = st->current_time + (10 * wcount) + (wcount * wcount); 
-    switch (st->xmode) {
-      /* All these functions expect an int time, the struct info,
-         a pointer to an array of positions, and the index that the 
-         the function will fill of the array */
-    case spin_mode:
-      spin(st, internal_time, st->info, st->pos, 0);
-      break;
-    case funky_mode:
-      funky(st, internal_time, st->info, st->pos, 0);
-      break;
-    case circle_mode:
-      circle(st, internal_time, st->info, st->pos, 0);
-      break;
-    case linear_mode:
-      linear(st, internal_time, st->info, st->pos, 0);
-      break;
-    case fun_mode:
-      fun(st, internal_time, st->info, st->pos, 0);
-      break;
-    case test_mode:
-      test(st, internal_time, st->info, st->pos, 0);
-      break;
-    case innie_mode:
-      innie(st, internal_time, st->info, st->pos, 0, st->modifier);
-      break;
-    case lissajous_mode:
-      lissajous(st, internal_time, st->info, st->pos, 0);
-      break;
-    default:
-      spin(st, internal_time, st->info, st->pos, 0);
-      break;
-    }   /* End of the switch for the x position*/
-    switch (st->ymode) {
-    case spin_mode:
-      spin(st, internal_time, st->info, st->pos, 1);
-      break;
-    case funky_mode:
-      funky(st, internal_time, st->info, st->pos, 1);
-      break;
-    case circle_mode:
-      circle(st, internal_time, st->info, st->pos, 1);
-      break;
-    case linear_mode:
-      linear(st, internal_time, st->info, st->pos, 1);
-      break;
-    case fun_mode:
-      fun(st, internal_time, st->info, st->pos, 1);
-      break;
-    case test_mode:
-      test(st, internal_time, st->info, st->pos, 1);
-      break;
-    case innie_mode:
-      innie(st, internal_time, st->info, st->pos, 1, st->modifier);
-      break;
-    case lissajous_mode:
-      lissajous(st, internal_time, st->info, st->pos, 1);
-      break;
-    default:
-      spin(st, internal_time, st->info, st->pos, 1);
-      break;
-    } /* End of the switch for the y position*/
-    for (lcount = 0; lcount < st->info->nlines; lcount++) {
-      double arg = (double)((internal_time * st->info->offset_period) / 90.0); 
-      double line_offset = 20.0 * (double)lcount * sin(arg); 
-      int size;
-      size = (int)(15.0 + 5.0 * sin((double)internal_time / 180.0));
-      /* First delete the old circle... */
-      if (!st->info->trail
-#ifdef HAVE_DOUBLE_BUFFER_EXTENSION
-          && ( !st->dbeclear_p || !st->backb)
-#endif /* HAVE_DOUBLE_BUFFER_EXTENSION */
-          ) {
-        XSetForeground(st->dpy, st->bgc, BlackPixel(st->dpy, st->screen));
-        XFillArc(st->dpy, st->b, st->bgc, st->last_x[wcount][lcount], st->last_y[wcount][lcount], st->last_size[wcount][lcount], st->last_size[wcount][lcount], START_ARC, END_ARC);
-      }
-      /* Now, lets draw in the new circle */
-      {  /* Starting new scope for local x_pos and y_pos */
-        int xpos, ypos;
-        if (st->wrap) {
-          xpos = preen((int)(st->info->xoffset*line_offset)+st->pos[0], st->info->half_width * 2);
-          ypos = preen((int)(st->info->yoffset*line_offset)+st->pos[1], st->info->half_height * 2);
-        }
-        else {
-          xpos = (int)(st->info->xoffset*line_offset)+st->pos[0];
-          ypos = (int)(st->info->yoffset*line_offset)+st->pos[1]; 
-        }
-        if (st->start_time == st->current_time) {
-          /* smoothen should move from one mode to another prettily... */
-
-          /* Note: smoothen has not been modified to take the double
-             buffering code into account, and needs to be hacked on
-             before uncommenting.
-          */
-          /* 
-             smoothen(xpos, last_x[wcount][lcount], ypos, last_y[wcount][lcount], size, color_offset, colors, dpy, window, bgc, screen, info);
-          */
-        }
-        st->last_x[wcount][lcount] = xpos;
-        st->last_y[wcount][lcount] = ypos;
-        st->last_size[wcount][lcount] = size;
-        XSetForeground(st->dpy, st->bgc, st->colors[color_offset].pixel);
-        XFillArc(st->dpy, st->b, st->bgc, xpos, ypos, size, size, START_ARC, END_ARC);
-      } /* End of my temporary scope for xpos and ypos */
-    }  /* End of the for each line in nlines */
-  } /* End of the for each whirly in whirlies */
-
-
-#ifdef HAVE_DOUBLE_BUFFER_EXTENSION
-  if (st->backb)
-    {
-      XdbeSwapInfo info[1];
-      info[0].swap_window = st->window;
-      info[0].swap_action = (st->dbeclear_p ? XdbeBackground : XdbeUndefined);
-      XdbeSwapBuffers (st->dpy, info, 1);
-    }
-  else
-#endif /* HAVE_DOUBLE_BUFFER_EXTENSION */
-    if (st->dbuf)
-      {
-        XCopyArea (st->dpy, st->b, st->window, st->bgc, 0, 0,
-                   st->xgwa.width, st->xgwa.height, 0, 0);
-      }
-
-  if (st->current_time == FULL_CYCLE)
-    st->current_time = 1;
-  else
-    st->current_time = st->current_time + st->info->speed;
-
-  return 10000;
-}
-
-
-static void
-whirlygig_reshape (Display *dpy, Window window, void *closure, 
-                 unsigned int w, unsigned int h)
-{
-}
-
-static Bool
-whirlygig_event (Display *dpy, Window window, void *closure, XEvent *event)
-{
-  return False;
-}
-
-static void
-whirlygig_free (Display *dpy, Window window, void *closure)
-{
-  struct state *st = (struct state *) closure;
-  free (st->info);
-  XFreeGC (dpy, st->fgc);
-  XFreeGC (dpy, st->bgc);
-  if (st->xmode_str) free (st->xmode_str);
-  if (st->ymode_str) free (st->ymode_str);
-  free (st);
-}
-
-
-static const char *whirlygig_defaults [] = {
-  ".background: black",
-  ".foreground: white",
-  "*fpsSolid:	true",
-  "*xspeed: 1.0",
-  "*yspeed: 1.0",
-  "*xamplitude: 1.0",
-  "*yamplitude: 1.0",
-  "*whirlies: -1",
-  "*nlines: -1",
-  "*xmode: change",
-  "*ymode: change",
-  "*speed: 1",
-  "*trail: false",
-  "*color_modifier: -1",
-  "*start_time: -1",
-  "*explain: False",
-  "*xoffset: 1.0",
-  "*yoffset: 1.0",
-  "*offset_period:    1",
-  "*wrap:               False",
-  "*doubleBuffer:	True",
-#ifdef HAVE_DOUBLE_BUFFER_EXTENSION
-  "*useDBEClear:	True",
-  "*useDBE:		True",
-#endif /* HAVE_DOUBLE_BUFFER_EXTENSION */
-  0
-};
-
-static XrmOptionDescRec whirlygig_options [] = {
-  { "-xspeed",          ".xspeed", XrmoptionSepArg, 0 },
-      /* xspeed is a modifier of the argument to cos -- changing it thus
-         changes the frequency of cos */
-  { "-yspeed",          ".yspeed", XrmoptionSepArg, 0 },
-      /*  Similiarly, yspeed changes the frequency of sin */
-  { "-xamplitude",      ".xamplitude", XrmoptionSepArg, 0 },
-      /* A factor by which to increase/decrease the amplitude of the sin */
-  { "-yamplitude",      ".yamplitude", XrmoptionSepArg, 0 },
-      /* A factor by which to increase/decrease the amplitude of the cos */
-  { "-whirlies",         ".whirlies",XrmoptionSepArg, 0 },
-      /*  whirlies defines the number of circles to draw per line */
-  { "-nlines",         ".nlines",XrmoptionSepArg, 0 },
-      /* nlines is the number of lines of whirlies to draw */
-  { "-xmode",        ".xmode", XrmoptionSepArg, 0 },
-      /*  There are a few different modes that I have written -- each mode
-          is in theory a different experiment with the possible modifiers to sin/cos */
-  { "-ymode",       ".ymode", XrmoptionSepArg, 0 },
-  { "-speed",        ".speed", XrmoptionSepArg, 0 },
-      /*  This will modify how often it should draw, changing it will probably suck */
-  { "-trail",           ".trail", XrmoptionNoArg, "True" },
-      /* Control whether or not you want the old circles to be erased */
-  { "-color_modifier",          ".color_modifier", XrmoptionSepArg, 0 },
-      /*  How many colors away from the current should the next whirly be? */
-  { "-start_time",                ".start_time", XrmoptionSepArg, 0 },
-      /*  Specify exactly at what time to start graphing...  */
-  { "-xoffset",                    ".xoffset", XrmoptionSepArg, 0 },
-      /*  Tell the whirlies to be offset by this factor of a sin */
-  { "-yoffset",                    ".yoffset", XrmoptionSepArg, 0 },
-      /*  Tell the whirlies to be offset by this factor of a cos */
-  { "-offset_period",          ".offset_period", XrmoptionSepArg, 0 },
-      /*  Change the period of an offset cycle */
-  { "-explain",                    ".explain", XrmoptionNoArg, "True" },
-      /*  Specify whether or not to print an explanation of the function used. */
-  { "-wrap",                      ".wrap", XrmoptionNoArg, "True" },
-  { "-no-wrap",                   ".wrap", XrmoptionNoArg, "False" },
-      /* Specify if you want whirlies which are out of the boundary of the screen to be
-         wrapped around to the other side */
-  { "-db",		".doubleBuffer", XrmoptionNoArg,  "True" },
-  { "-no-db",		".doubleBuffer", XrmoptionNoArg,  "False" },
-  { 0, 0, 0, 0 }
-};
-
-XSCREENSAVER_MODULE ("Whirlygig", whirlygig)