#include <u.h>#include <libc.h>#include <thread.h>#include <omero.h>#include <error.h>#include <draw.h>#include <b.h>  char cmds[512]; Pointcirclept(Point c, int r, int degrees){	double rad;	rad = (double) degrees * PI/180.0;	c.x += cos(rad)*r;	c.y -= sin(rad)*r;	return c;} intredraw(Panel* g){	static char cmds[1024];	char*	s;	Point	c;	int	rad;	Point	cpt;	int	i, r;	int anghr, angmin;	int tm;	Tm tms;	static int oanghr, oangmin; 	tm = time(0);	tms = *localtime(tm);	anghr = 90-(tms.hour*5 + tms.min/10)*6;	angmin = 90-tms.min*6;	if (oanghr == anghr && oangmin == angmin)		return 0;	oanghr = anghr;	oangmin= angmin;	c = Pt(40,40);	rad= 35;	s = cmds;	s = seprint(s, cmds+1024, "ellipse %d %d %d %d grey\n", c.x, c.y, rad, rad);	s = seprint(s, cmds+1024, "ellipse %d %d %d %d\n", c.x, c.y, rad, rad);	for(i=0; i<12; i++){		cpt = circlept(c, rad - 8, i*(360/12));		s = seprint(s, cmds+1024,			"ellipse %d %d %d %d yellow\n", cpt.x,  cpt.y, 2, 2);	}	cpt = circlept(c, (rad*3)/4, angmin);	s = seprint(s, cmds+1024, "line %d %d %d %d 1 blue\n", c.x, c.y, cpt.x, cpt.y);	cpt = circlept(c, rad/2, anghr);	seprint(s, cmds+1024, "line %d %d %d %d 1 blue\n", c.x, c.y, cpt.x, cpt.y);	openpanel(g, OWRITE|OTRUNC);	r = writepanel(g, cmds, strlen(cmds));	closepanel(g);	return r;} voidomerogone(void){	fprint(2, "%s: terminated\n", argv0);	threadexitsall(nil);} voidthreadmain(int argc, char* argv[]){	Panel*	d; 	ARGBEGIN{	case 'd':		omerodebug++;		break;	default:		fprint(2, "usage: %s \n", argv0);		sysfatal("usage");	}ARGEND;	if (argc > 0){		fprint(2, "usage: %s\n", argv0);		sysfatal("usage");	}	d = createpanel("oclock", "draw", nil);	if (d == nil)		sysfatal("createpanel: %r\n");	panelctl(d, "tag");	closepanelctl(d);	for(;;){		sleep(1000);		if (redraw(d) < 0)			threadexitsall(nil);	}			}