boredYou have a strong appeal for members of your own sex.
condor@deneb ~>
::sigh:: If only that were true ... ::rolls eyes::
>>>
Dr. Nico told me about this amusing little program called xroach. It makes roaches run around on your desktop (if you have UNIX) and hide under your windows. It amused me, so I just spent the past half-hour hacking on it to get the roaches to move at a reasonable speed.
Here's the patch:
diff -Nru xroach-4.0/xroach.c xroach-4.0-des1/xroach.c
--- xroach-4.0/xroach.c 1991-06-06 05:12:07.000000000 -0700
+++ xroach-4.0-des1/xroach.c 2005-02-16 10:30:12.000000000 -0800
@@ -32,6 +32,8 @@
#include <malloc.h>
#include <signal.h>
+#include <time.h>
+
#if __STDC__
#include <stdlib.h>
#else
@@ -85,7 +87,8 @@
Roach *roaches;
int maxRoaches = 10;
int curRoaches = 0;
-float roachSpeed = 20.0;
+float roachSpeed = 20;
+float roachStep = 20.0;
Region rootVisible = NULL;
@@ -133,6 +136,9 @@
else if (strcmp(arg, "-speed") == 0) {
roachSpeed = strtod(av[++ax], (char **)NULL);
}
+ else if (strcmp(arg, "-step") == 0) {
+ roachStep = strtod(av[++ax], (char **)NULL);
+ }
else if (strcmp(arg, "-roaches") == 0) {
maxRoaches = strtol(av[++ax], (char **)NULL, 0);
}
@@ -231,6 +237,10 @@
XNextEvent(display, &ev);
}
else {
+ struct timespec ts;
+ ts.tv_sec = 0;
+ ts.tv_nsec = (long)(1000000000/roachSpeed);
+ nanosleep(&ts, NULL);
if (needCalc) {
needCalc = CalcRootVisible();
}
@@ -303,6 +313,7 @@
USEPRT(" -rc roachcolor\n");
USEPRT(" -roaches numroaches\n");
USEPRT(" -speed roachspeed\n");
+ USEPRT(" -step roachstep\n");
USEPRT(" -squish\n");
USEPRT(" -rgc roachgutscolor\n");
@@ -494,8 +505,8 @@
int ii;
roach = &roaches[rx];
- newX = roach->x + (roachSpeed * roach->rp->cosine);
- newY = roach->y - (roachSpeed * roach->rp->sine);
+ newX = roach->x + (roachStep * roach->rp->cosine);
+ newY = roach->y - (roachStep * roach->rp->sine);
if (RoachInRect(roach, (int)newX, (int)newY,
0, 0, display_width, display_height)) {
So, yeah ... maybe I should actually work on that compilers homework that's due later today ...
-- Des
