* 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"
-#include <stdio.h>
-static XColor colors[1000];
-static int ncolors = 1000;
-static int current_color = 0;
-
-int
-draw_dot(Display *dpy,
- Window window,
- Colormap cmap,
- GC fgc, GC bgc,
- int current_time,
- int origin_x, int origin_y,
- int screen_num, double xspeed, double yspeed,
- int whirlies, int nlines)
-{
- int size, last_size; /* The size of my dot */
- int start_arc = 0; /* Start my circle at 0 degrees */
- int end_arc = 23040; /* The number of degrees in a X circle (360 * 64) */
- int horiz, vert; /* These will contain the new x,y coordinates to put my dot */
- int last_horiz ,last_vert; /* These contain the positions to black out */
- int last_time;
- int count, line_count;
- int line_offset, last_line_offset;
- int color_offset;
- XWindowAttributes xgwa;
- XGetWindowAttributes (dpy, window, &xgwa);
- if (++current_color >= ncolors)
- current_color = 0;
- for (count = 0; count < whirlies; count++) {
- color_offset = (current_color + (10 * count )) % ncolors;
- if (current_time == count) {
- last_time = current_time;
- }
- else {
- current_time = current_time + count;
- last_time = current_time - 1;
- }
- last_horiz = compute_x(last_time, origin_x, xspeed);
- last_vert = compute_y(last_time, origin_y, yspeed);
- horiz = compute_x(current_time, origin_x, xspeed);
- vert = compute_y(current_time, origin_y, yspeed);
- for (line_count = 0; line_count < nlines; line_count++) {
- last_line_offset = (int)(80.0 * line_count * sin((double)last_time / 90));
- line_offset = (int)(80.0 * line_count * sin((double)current_time / 90));
- last_size = (int)(15.0 + 5.0 * sin((double)last_time / 180.0));
- size = (int)(15.0 + 5.0 * sin((double)current_time / 180.0));
- /* Get rid of the old circle */
- XSetForeground(dpy, bgc, BlackPixel(dpy, screen_num));
- XFillArc(dpy, window, bgc, last_horiz, last_line_offset+last_vert, last_size, last_size, start_arc, end_arc);
- /* Draw in the new circle */
- XSetForeground(dpy, bgc, colors[color_offset].pixel);
- XFillArc(dpy, window, bgc, horiz, line_offset+vert, size, size, start_arc, end_arc);
- }
- }
- XSync (dpy, False);
- if (current_time == 23040)
- {
- return(1);
- }
- else
- {
- return(0);
- }
-}
+#define NCOLORS 1000
+#define FULL_CYCLE 429496729
+#define START_ARC 0
+#define END_ARC 23040
-int compute_x(int the_time, int origin, double xspeed)
-{
- double funky = (((the_time % 360) * 1.0) / 180.0) * M_PI;
- double the_cosine = cos((double)the_time / (180.0 * xspeed));
- double dist_mod_x = cos((double)funky) * (origin - 50);
- int horiz_pos = origin + (the_cosine * dist_mod_x);
- return(horiz_pos);
-}
+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;
+ int wrap;
+};
-int compute_y(int the_time, int origin, double yspeed)
-{
- double funky = (((the_time % 360) * 1.0) / 180.0) * M_PI;
- double the_sine = sin((double)the_time / (180.0 * yspeed));
- double dist_mod_y = sin((double)funky) * (origin - 50);
- int vert_pos = origin + (the_sine * dist_mod_y);
- return(vert_pos);
-}
+enum object_mode {
+ spin_mode, funky_mode, circle_mode, linear_mode, test_mode, fun_mode, innie_mode, lissajous_mode
+} mode;
+
+static void explain(int, struct info *, Display *, Window, GC);
+static void spin(unsigned long int, struct info *, int *, int);
+static void funky(unsigned long int, struct info *, int *, int);
+static void circle(unsigned long int, struct info *, int *, int);
+static void fun(unsigned long int, struct info *, int *, int);
+static void linear(unsigned long int, struct info *, int *, int);
+static void lissajous(unsigned long int, struct info *, int *, int);
+static void test(unsigned long int, struct info *, int *, int);
+static void innie(unsigned long int, struct info *, int *, int, double);
+
+
+
+XColor colors[NCOLORS];
+int ncolors = NCOLORS;
char *progclass = "Whirlygig";
char *defaults [] = {
- ".background: black",
- ".foreground: white",
- "*xspeed: 1.0",
- "*yspeed: 1.0",
- "*whirlies: 10",
- "*nlines: 1",
+ ".background: black",
+ ".foreground: white",
+ "*xspeed: 1.0",
+ "*yspeed: 1.0",
+ "*xamplitude: 1.0",
+ "*yamplitude: 1.0",
+ "*whirlies: -1",
+ "*nlines: -1",
+ "*xmode: change",
+ "*ymode: change",
+ "*speed: 1",
+ "*trail: 0",
+ "*color_modifier: -1",
+ "*start_time: -1",
+ "*explain: 0",
+ "*xoffset: 1.0",
+ "*yoffset: 1.0",
+ "*offset_period: 1",
+ "*wrap: 0",
0
};
XrmOptionDescRec 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", XrmoptionSepArg, 0 },
+ /* 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", XrmoptionSepArg, 0 },
+ /* Specify whether or not to print an explanation of the function used. */
+ { "-wrap", ".wrap", XrmoptionSepArg, 0 },
+ /* Specify if you want whirlies which are out of the boundary of the screen to be
+ wrapped around to the other side */
{ 0, 0, 0, 0 }
};
-void screenhack (Display *dpy, Window window)
+
+static const char funky_explanation[] =
+"Funky mode is me goofing off.";
+
+static const char test_explanation[] =
+"Test mode is a mode that I play around with ideas in.";
+
+static const char spin_explanation[] =
+"Spin mode is a simple sin/cos with every argument modified";
+
+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 fun_explanation[] =
+"Fun mode is the coolest.";
+
+static const char linear_explanation[] =
+"I draw a straight line -- woo hoo";
+
+static const char lissajous_explanation[] =
+"This draws a slightly modified lissajous curve";
+
+static void
+explain(int mode, struct info *info, Display *display, Window window, GC fgc)
+{
+ XClearWindow(display, window);
+ switch(mode) {
+ case spin_mode:
+ XDrawString(display, window, fgc, 50, info->half_height-100, spin_explanation, strlen(spin_explanation));
+ break;
+ case funky_mode:
+ XDrawString(display, window, fgc, 50, info->half_height-100, funky_explanation, strlen(funky_explanation));
+ break;
+ case circle_mode:
+ XDrawString(display, window, fgc, 50, info->half_height-100, circle_explanation, strlen(circle_explanation));
+ break;
+ case fun_mode:
+ XDrawString(display, window, fgc, 50, info->half_height-100, fun_explanation, strlen(fun_explanation));
+ break;
+ case linear_mode:
+ XDrawString(display, window, fgc, 50, info->half_height-100, linear_explanation, strlen(linear_explanation));
+ break;
+ case lissajous_mode:
+ XDrawString(display, window, fgc, 50, info->half_height-100, lissajous_explanation, strlen(linear_explanation));
+
+ }
+ XSync(display, False);
+ sleep(3);
+ XClearWindow(display, window);
+}
+
+static void
+funky(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)info->xspeed) + (time_modifier * 80.0));
+ double dist_mod_x = cos(new_time) * (info->half_width - 50);
+ pos[index]= info->xamplitude * (the_cos * dist_mod_x) + 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)info->yspeed) + (time_modifier * 80.0));
+ double dist_mod_y = sin(new_time) * (info->half_height - 50);
+ pos[index] = info->yamplitude * (the_sin * dist_mod_y) + info->half_height;
+ }
+}
+
+static void
+innie(unsigned long int the_time, struct info *info, int pos[], int index, double modifier)
+{
+ double frequency = 2000000.0 + (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)) + info->half_width;
+ pos[index] = (amplitude * cos((double)the_time / 100.0 * info->xspeed)) + horiz_mod;
+ }
+ else {
+ vert_mod = (int)(fun * sin((double)the_time / 100.0)) + info->half_height;
+ pos[index] = (amplitude * sin((double)the_time / 100.0 * info->yspeed)) + vert_mod;
+ }
+}
+
+static void
+lissajous(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 = info->xamplitude * 200.0 * sin((weird * time) + fun) + info->half_width;
+ }
+ else {
+ result = info->yamplitude * 200.0 * sin(time) + info->half_height;
+ }
+ pos[index] = result;
+}
+
+static void
+circle(unsigned long int the_time, struct info *info, int pos[], int index)
+{
+ int result;
+ if (index == 0) {
+ result = info->xamplitude * (cos((double)the_time / 100.0 * info->xspeed) * (info->half_width / 2)) + info->half_width;
+ }
+ else {
+ result = info->yamplitude * (sin((double)the_time / 100.0 * info->yspeed) * (info->half_height / 2)) + info->half_height;
+ }
+ pos[index] = result;
+}
+
+#if 0
+static void
+mod(unsigned long int the_time, struct info *info, int pos[], int index)
+{
+ int amplitude;
+ int max = 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(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 * info->xspeed));
+ double dist_mod_x = cos((double)funky) * (info->half_width - 50);
+ pos[index] = info->xamplitude * (the_cos * dist_mod_x) + info->half_width;
+ }
+ else {
+ double the_sin = sin((double)the_time / (180.0 * info->yspeed));
+ double dist_mod_y = sin((double)funky) * (info->half_height - 50);
+ pos[index] = info->yamplitude * (the_sin * dist_mod_y) + info->half_height;
+ }
+}
+
+static void
+fun(unsigned long int the_time, struct info *info, int pos[], int index)
{
- GC fgc, bgc; /* the foreground and background graphics contexts */
+ int amplitude;
+ int max = 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) {
+ pos[index] = (amplitude * cos((double)the_time / 100.0 * info->xspeed)) + info->half_width;
+ }
+ else {
+ pos[index] = (amplitude * sin((double)the_time / 100.0 * info->yspeed)) + info->half_height;
+ }
+}
+
+static void
+linear(unsigned long int the_time, struct info *info, int pos[], int index)
+{
+ if (index == 0) /* Calculate for the x axis */
+ pos[index] = ((the_time / 2) % (info->half_width * 2));
+ else
+ pos[index] = ((the_time / 2) % (info->half_height * 2));
+}
+
+static void
+test(unsigned long int the_time, struct info *info, int pos[], int index)
+{
+ if (index == 0) {
+ pos[index] = info->xamplitude * (cos((double)the_time / 100.0 * info->xspeed) * (info->half_width / 2)) + info->half_width;
+ }
+ else {
+ pos[index] = info->yamplitude * (sin((double)the_time / 100.0 * info->yspeed) * (info->half_height / 2)) + info->half_height;
+ }
+}
+
+static int preen(int current, int max) {
+ if (current > max)
+ current=current-max;
+ if (current < 0)
+ current=current+max;
+ return(current);
+}
+
+static void
+smoothen(int x, int lastx, int y, int lasty, int size, int last_color, XColor *colors, Display *display, 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 (! info->trail) {
+ XSetForeground(display, bgc, BlackPixel(display, screen));
+ XFillArc(display, window, bgc, lastx, lasty, size, size, START_ARC, END_ARC);
+ }
+ XSetForeground(display, bgc, colors[last_color].pixel);
+ XFillArc(display, window, bgc, newx, newy, size, size, START_ARC, END_ARC);
+ XSync(display, False);
+ smoothen(newx, x, newy, y, size, last_color, colors, display, window, bgc, screen, info);
+ }
+}
+
+
+void
+screenhack (Display *display, Window window)
+{
+ /* The following are all X related toys */
XGCValues gcv; /* The structure to hold the GC data */
XWindowAttributes xgwa; /* A structure to hold window data */
- Bool writable = get_boolean_resource ("cycle", "Boolean");
- double xspeed = get_float_resource( "xspeed", "Float");
- double yspeed = get_float_resource( "yspeed", "Float");
- int whirlies = get_integer_resource( "whirlies", "Integer");
- int nlines = get_integer_resource( "nlines", "Integer");
- int time_counter = 0; /* This will be incremented in my while loop so that I can move my circle */
- int screen_num = DefaultScreen(dpy);
- int half_width, half_height;
- XGetWindowAttributes (dpy, window, &xgwa);
-
- half_width = xgwa.width / 2;
- half_height = xgwa.height / 2;
-
- gcv.foreground = get_pixel_resource("foreground", "Foreground", dpy, xgwa.colormap);
- fgc = XCreateGC (dpy, window, GCForeground, &gcv);
- gcv.foreground = get_pixel_resource("background", "Background", dpy, xgwa.colormap);
- bgc = XCreateGC (dpy, window, GCForeground, &gcv);
- make_uniform_colormap (dpy, xgwa.visual, xgwa.colormap,
- colors, &ncolors,
- True, &writable, True);
- mono_p = True;
- if (!mono_p)
- {
- GC tmp = fgc;
- fgc = bgc;
- bgc = tmp;
+ GC fgc, bgc;
+ int screen;
+
+ unsigned long int current_time = 0; /* The global int telling the current time */
+ unsigned long int start_time = current_time;
+ struct info *info = (struct info *)malloc(sizeof(struct info)); /* Dont forget to call free() later */
+ 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;
+ int wrap;
+ int xmode, ymode;
+ double modifier; /* for innie */
+ /* Set up the X toys that I will be using later */
+ screen = DefaultScreen(display);
+ XGetWindowAttributes (display, window, &xgwa);
+ gcv.foreground = get_pixel_resource("foreground", "Foreground", display, xgwa.colormap);
+ fgc = XCreateGC (display, window, GCForeground, &gcv);
+ gcv.foreground = get_pixel_resource("background", "Background", display, xgwa.colormap);
+ bgc = XCreateGC (display, window, GCForeground, &gcv);
+ make_uniform_colormap (display, xgwa.visual, xgwa.colormap, colors, &ncolors, True, &info->writable, True);
+ /* 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 ("cycle", "Boolean");
+ info->xspeed = get_float_resource("xspeed" , "Float");
+ info->yspeed = get_float_resource("yspeed" , "Float");
+ info->xamplitude = get_float_resource("xamplitude", "Float");
+ info->yamplitude = get_float_resource("yamplitude", "Float");
+ info->offset_period = get_float_resource("offset_period", "Float");
+ info->whirlies = get_integer_resource("whirlies", "Integer");
+ info->nlines = get_integer_resource("nlines", "Integer");
+ info->half_width = xgwa.width / 2;
+ info->half_height = xgwa.height / 2;
+ info->speed = get_integer_resource("speed" , "Integer");
+ info->trail = get_integer_resource("trail", "Integer");
+ info->color_modifier = get_integer_resource("color_modifier", "Integer");
+ info->xoffset = get_float_resource("xoffset", "Float");
+ info->yoffset = get_float_resource("yoffset", "Float");
+ xmode_str = get_string_resource("xmode", "Mode");
+ ymode_str = get_string_resource("ymode", "Mode");
+ wrap = get_integer_resource("wrap", "Integer");
+ modifier = 3000.0 + (1500.0 * random() / (RAND_MAX + 1.0));
+ if (! xmode_str) xmode = spin_mode;
+ else if (! strcmp (xmode_str, "spin")) xmode = spin_mode;
+ else if (! strcmp (xmode_str, "funky")) xmode = funky_mode;
+ else if (! strcmp (xmode_str, "linear")) xmode = linear_mode;
+ else if (! strcmp (xmode_str, "fun")) xmode = fun_mode;
+ else if (! strcmp (xmode_str, "innie")) xmode = innie_mode;
+ else if (! strcmp (xmode_str, "lissajous")) xmode = lissajous_mode;
+ else if (! strcmp (xmode_str, "test")) xmode = test_mode;
+ else {
+ xmode = spin_mode;
+ }
+ if (! ymode_str) ymode = spin_mode;
+ else if (! strcmp (ymode_str, "spin")) ymode = spin_mode;
+ else if (! strcmp (ymode_str, "funky")) ymode = funky_mode;
+ else if (! strcmp (ymode_str, "linear")) ymode = linear_mode;
+ else if (! strcmp (ymode_str, "fun")) ymode = fun_mode;
+ else if (! strcmp (ymode_str, "innie")) ymode = innie_mode;
+ else if (! strcmp (ymode_str, "lissajous")) ymode = lissajous_mode;
+ else if (! strcmp (ymode_str, "test")) ymode = test_mode;
+ else {
+ ymode = spin_mode;
}
- while (1)
- {
- /* draw_dot will return an interger. If this interger is 0, then continue incrementing
- time_counter, if it is 1, then reset it to zero... It should only become 1 with the sine
- is 0 and the cosine is 1 */
- if (draw_dot(dpy, window, xgwa.colormap, fgc, bgc, time_counter, half_width, half_height, screen_num, xspeed , yspeed, whirlies, nlines) == 1) {
- time_counter = 1;
+ if (get_integer_resource("start_time", "Integer") == -1)
+ current_time = (unsigned long int)(random());
+ else
+ current_time = get_integer_resource("start_time", "Integer");
+ if (info->whirlies == -1)
+ info->whirlies = 1 + (int)(15.0 * random() / (RAND_MAX + 1.0));
+ if (info->nlines == -1)
+ info->nlines = 1 + (int)(5.0 * random() / (RAND_MAX + 1.0));
+ if (info->color_modifier == -1)
+ info->color_modifier = 1 + (int)(25.0 * random() / (RAND_MAX + 1.0));
+ if (get_integer_resource("explain", "Integer") == 1)
+ explain(mode, info, display, window, fgc);
+ current_color = 1 + (int)((double)NCOLORS * random() / (RAND_MAX + 1.0));
+ /* Now that info is full, lets play! */
+
+ while (1) {
+ 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 (! strcmp (xmode_str, "change") && ! strcmp (ymode_str, "change")) {
+ if ((current_time - start_time) > change_time) {
+ start_time = current_time;
+ xmode = 1 + (int)(4.0 * random() / (RAND_MAX + 1.0));
+ ymode = 1 + (int)(4.0 * random() / (RAND_MAX + 1.0));
+ }
}
- else {
- time_counter++;
+ else if (! strcmp (xmode_str, "change")) {
+ if ((current_time - start_time) > change_time) {
+ start_time = current_time;
+ xmode = 1 + (int)(3.5 * random() / (RAND_MAX + 1.0));
+ }
}
- screenhack_handle_events (dpy);
-
- if (!writable)
- usleep(10);
- }
+ else if (! strcmp (ymode_str, "change")) {
+ if ((current_time - start_time) > change_time) {
+ start_time = current_time;
+ ymode = 1 + (int)(3.0 * random() / (RAND_MAX + 1.0));
+ printf("Changing ymode to %d\n", ymode);
+ }
+ }
+ if (++current_color >= NCOLORS)
+ current_color = 0;
+ for (wcount = 0; wcount < info->whirlies; wcount++) {
+ int lcount; /* lcount is a counter for every line -- take note of the offsets changing */
+ int internal_time = current_time;
+ int color_offset = (current_color + (info->color_modifier * wcount)) % NCOLORS;
+ if (current_time == 0)
+ internal_time = 0;
+ else
+ /* I want the distance between whirlies to increase more each whirly */
+ internal_time = current_time + (10 * wcount) + (wcount * wcount);
+ switch (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(internal_time, info, pos, 0);
+ break;
+ case funky_mode:
+ funky(internal_time, info, pos, 0);
+ break;
+ case circle_mode:
+ circle(internal_time, info, pos, 0);
+ break;
+ case linear_mode:
+ linear(internal_time, info, pos, 0);
+ break;
+ case fun_mode:
+ fun(internal_time, info, pos, 0);
+ break;
+ case test_mode:
+ test(internal_time, info, pos, 0);
+ break;
+ case innie_mode:
+ innie(internal_time, info, pos, 0, modifier);
+ break;
+ case lissajous_mode:
+ lissajous(internal_time, info, pos, 0);
+ break;
+ default:
+ spin(internal_time, info, pos, 0);
+ break;
+ } /* End of the switch for the x position*/
+ switch (ymode) {
+ case spin_mode:
+ spin(internal_time, info, pos, 1);
+ break;
+ case funky_mode:
+ funky(internal_time, info, pos, 1);
+ break;
+ case circle_mode:
+ circle(internal_time, info, pos, 1);
+ break;
+ case linear_mode:
+ linear(internal_time, info, pos, 1);
+ break;
+ case fun_mode:
+ fun(internal_time, info, pos, 1);
+ break;
+ case test_mode:
+ test(internal_time, info, pos, 1);
+ break;
+ case innie_mode:
+ innie(internal_time, info, pos, 1, modifier);
+ break;
+ case lissajous_mode:
+ lissajous(internal_time, info, pos, 1);
+ break;
+ default:
+ spin(internal_time, info, pos, 1);
+ break;
+ } /* End of the switch for the y position*/
+ for (lcount = 0; lcount < info->nlines; lcount++) {
+ double arg = (double)((internal_time * 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 (! info->trail) {
+ XSetForeground(display, bgc, BlackPixel(display, screen));
+ XFillArc(display, window, bgc, last_x[wcount][lcount], last_y[wcount][lcount], last_size[wcount][lcount], 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 (wrap) {
+ xpos = preen((int)(info->xoffset*line_offset)+pos[0], info->half_width * 2);
+ ypos = preen((int)(info->yoffset*line_offset)+pos[1], info->half_height * 2);
+ }
+ else {
+ xpos = (int)(info->xoffset*line_offset)+pos[0];
+ ypos = (int)(info->yoffset*line_offset)+pos[1];
+ }
+ if (start_time == current_time) {
+ /* smoothen should move from one mode to another prettily... */
+/*
+ smoothen(xpos, last_x[wcount][lcount], ypos, last_y[wcount][lcount], size, color_offset, colors, display, window, bgc, screen, info);
+ */
+ }
+ last_x[wcount][lcount] = xpos;
+ last_y[wcount][lcount] = ypos;
+ last_size[wcount][lcount] = size;
+ XSetForeground(display, bgc, colors[color_offset].pixel);
+ XFillArc(display, window, 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 */
+ XSync(display, False);
+ if (current_time == FULL_CYCLE)
+ current_time = 1;
+ else
+ current_time = current_time + info->speed;
+ screenhack_handle_events(display);
+ if (!info->writable)
+ usleep(10000);
+ } /* End the while loop! */
+ free(info);
}
-
projects / xscreensaver / blobdiff