/* t3d -- Flying Balls Clock Demo
by Bernd Paysan , paysan@informatik.tu-muenchen.de
Copy, modify, and distribute T3D either under GPL version 2 or newer,
or under the standard MIT/X license notice.
partly based on flying balls demo by Georg Acher,
acher@informatik.tu-muenchen.de
(developed on HP9000/720 (55 MIPS,20 MFLOPS) )
NO warranty at all ! Complaints to /dev/null !
4-Jan-99 jwz@jwz.org -- adapted to xscreensaver framework, to take advantage
of the command-line options provided by screenhack.c.
*/
#ifndef HAVE_JWXYZ
# define FASTDRAW
# define FASTCOPY
#endif /* !HAVE_JWXYZ */
#include <stdio.h>
#include <math.h>
#include <time.h> /* for localtime() and gettimeofday() */
#include "screenhack.h"
#define WIDTH 200
#define HEIGHT 200
#define norm 20.0
#define ROOT 0x1
#define PI M_PI
#define TWOPI 2*M_PI
#define MIN(i,j) ((i)<(j)?(i):(j))
#define kmax ((st->minutes?60:24))
/* Anzahl der Kugeln */
#define sines 52
/* Werte in der Sinus-Tabelle */
/*-----------------------------------------------------------------*/
#define setink(inkcolor) \
XSetForeground (st->dpy,st->gc,inkcolor)
#define drawline(xx1,yy1,xx2,yy2) \
XDrawLine(st->dpy,st->win,st->gc,xx1,yy1,xx2,yy2)
#define drawseg(segments,nr_segments) \
XDrawSegments(st->dpy,st->win,st->gc,segments,nr_segments)
#define polyfill(ppts,pcount) \
XFillPolygon(st->dpy,st->win,st->gc,ppts,pcount,Convex,CoordModeOrigin)
#define frac(argument) argument-floor(argument)
#undef ABS
#define ABS(x) ((x)<0.0 ? -(x) : (x))
typedef struct {
double x,y,z,r,d,r1;
int x1,y1;
} kugeldat;
/* Felder fuer 3D */
struct state {
Display *dpy;
Window window;
int maxk;
int timewait;
Colormap cmap;
double r,g,b;
double hue,sat,val;
kugeldat kugeln[100];
double a[3],am[3],x[3],y[3],v[3];
double zoom,speed,zaehler,vspeed;
double vturn;
double sinus[sines];
double cosinus[sines];
int startx,starty;
double mag;
int minutes;
int cycl;
double hsvcycl;
double movef, wobber, cycle;
XWindowAttributes xgwa;
GC gc;
GC orgc;
GC andgc;
int scrnWidth, scrnHeight;
Pixmap buffer;
int fastch;
int scrnW2,scrnH2;
XColor colors[64];
struct tm *zeit;
int planes;
Window junk_win,in_win;
int px,py,junk;
unsigned int kb;
int fastdraw;
int draw_color;
# ifdef FASTDRAW
# ifdef FASTCOPY
# define sum1ton(a) (((a)*(a)+1)/2)
# define fastcw sum1ton(st->fastch)
Pixmap fastcircles;
Pixmap fastmask;
# else /* !FASTCOPY */
XImage* fastcircles[maxfast];
XImage* fastmask[maxfast];
# endif /* !FASTCOPY */
# endif /* FASTDRAW */
};
#define maxfast 100
/* compute time */
static double
gettime (struct state *st)
{
struct timeval time1;
struct tm *zeit;
time_t lt;
#ifdef GETTIMEOFDAY_TWO_ARGS
struct timezone zone1;
gettimeofday(&time1,&zone1);
#else
gettimeofday(&time1);
#endif
lt = time1.tv_sec; /* avoid type cast lossage */
zeit=localtime(<);
return (zeit->tm_sec+60*(zeit->tm_min+60*(zeit->tm_hour))
+ time1.tv_usec*1.0E-6);
}
/* --------------------COLORMAP---------------------*/
static void
hsv2rgb (double h, double s, double v, double *r, double *g, double *b)
{
h/=360.0; h=6*(h-floor(h));
if(s==0.0)
{
*r=*g=*b=v;
}
else
{ int i=(int)h;
double t,u,w;
h=h-floor(h);
u=v*(s*(1.0-h));
w=v*(1.0-s);
t=v*(s*h+1.0-s);
switch(i)
{
case 0: *r=v; *g=t; *b=w; break;
case 1: *r=u; *g=v; *b=w; break;
case 2: *r=w; *g=v; *b=t; break;
case 3: *r=w; *g=u; *b=v; break;
case 4: *r=t; *g=w; *b=v; break;
case 5: *r=v; *g=w; *b=u; break;
}
}
#ifdef PRTDBX
printf("HSV: %f %f %f to\nRGB: %f %f %f\n",h,s,v,*r,*g,*b);
#endif
}
static void
changeColor (struct state *st, double r, double g, double b)
{
int n,n1;
n1=0;
for(n=30;n<64;n+=3)
{
st->colors[n1].red =1023+ n*(int)(1024.*r);
st->colors[n1].blue =1023+ n*(int)(1024.*b);
st->colors[n1].green =1023+ n*(int)(1024.*g);
n1++;
}
XStoreColors (st->dpy, st->cmap, st->colors, 12);
}
static void
initColor (struct state *st, double r, double g, double b)
{
int n,n1;
unsigned long pixels[12];
unsigned long dummy;
st->cmap = st->xgwa.colormap;
if(st->hsvcycl!=0.0 && XAllocColorCells(st->dpy, st->cmap, 0, &dummy, 0, pixels, 12))
{
for(n1=0;n1<12;n1++)
{
st->colors[n1].pixel=pixels[n1];
st->colors[n1].flags=DoRed | DoGreen | DoBlue;
}
changeColor(st,r,g,b);
}
else
{
n1=0;
for(n=30;n<64;n+=3)
{
st->colors[n1].red =1023+ n*(int)(1024.*r);
st->colors[n1].blue =1023+ n*(int)(1024.*b);
st->colors[n1].green =1023+ n*(int)(1024.*g);
if (!(XAllocColor (st->dpy, st->cmap, &st->colors[n1]))) {
fprintf (stderr, "Error: Cannot allocate colors\n");
exit (1);
}
n1++;
}
}
}
/* ----------------WINDOW-------------------*/
static void
initialize (struct state *st)
{
XGCValues *xgc;
XGCValues *xorgc;
XGCValues *xandgc;
st->maxk=34;
st->r = st->g = st->b = 1;
st->hue = st->sat = 0;
st->val = 1;
st->mag = 10;
st->movef = 0.5;
st->wobber = 2;
st->cycle = 6;
st->scrnWidth = WIDTH;
st->scrnHeight = HEIGHT;
XGetWindowAttributes (st->dpy, st->window, &st->xgwa);
st->scrnWidth = st->xgwa.width;
st->scrnHeight = st->xgwa.height;
{
float f = get_float_resource (st->dpy, "cycle", "Float");
if (f <= 0 || f > 60) f = 6.0;
st->cycle = 60.0 / f;
}
st->movef = get_float_resource (st->dpy, "move", "Float");
st->wobber = get_float_resource (st->dpy, "wobble", "Float");
{
double magfac = get_float_resource (st->dpy, "mag", "Float");
st->mag *= magfac;
st->fastch=(int)(st->fastch*magfac);
}
if (get_boolean_resource (st->dpy, "minutes", "Boolean")) {
st->minutes=1; st->maxk+=60-24;
}
st->timewait = get_integer_resource (st->dpy, "delay", "Integer");
st->fastch = get_integer_resource (st->dpy, "fast", "Integer");
st->cycl = get_boolean_resource (st->dpy, "colcycle", "Integer");
st->hsvcycl = get_float_resource (st->dpy, "hsvcycle", "Integer");
{
char *s = get_string_resource (st->dpy, "rgb", "RGB");
char dummy;
if (s && *s)
{
double rr, gg, bb;
if (3 == sscanf (s, "%lf %lf %lf %c", &rr, &gg, &bb, &dummy))
st->r = rr, st->g = gg, st->b = bb;
}
if (s) free (s);
s = get_string_resource (st->dpy, "hsv", "HSV");
if (s && *s)
{
double hh, ss, vv;
if (3 == sscanf (s, "%lf %lf %lf %c", &hh, &ss, &vv, &dummy)) {
st->hue = hh, st->sat = ss, st->val = vv;
hsv2rgb(st->hue,st->sat,st->val,&st->r,&st->g,&st->b);
}
}
if (s) free (s);
}
if (st->fastch > maxfast)
st->fastch=maxfast;
xgc=( XGCValues *) malloc(sizeof(XGCValues) );
xorgc=( XGCValues *) malloc(sizeof(XGCValues) );
xandgc=( XGCValues *) malloc(sizeof(XGCValues) );
st->planes=st->xgwa.depth;
#ifdef HAVE_JWXYZ
# define GXandInverted GXcopy /* #### this can't be right, right? */
#endif
st->gc = XCreateGC (st->dpy, st->window, 0, xgc);
xorgc->function =GXor;
st->orgc = XCreateGC (st->dpy, st->window, GCFunction, xorgc);
xandgc->function =GXandInverted;
st->andgc = XCreateGC (st->dpy, st->window, GCFunction, xandgc);
st->buffer = XCreatePixmap (st->dpy, st->window, st->scrnWidth, st->scrnHeight,
st->xgwa.depth);
#ifdef DEBUG
printf("Time 3D drawing ");
#ifdef FASTDRAW
# ifdef FASTCOPY
puts("fast by Pixmap copy");
# else
puts("fast by XImage copy");
# endif
#else
puts("slow");
#endif
#endif /* DEBUG */
#ifdef FASTCOPY
st->fastcircles = XCreatePixmap (st->dpy, st->window, fastcw, st->fastch+1, st->xgwa.depth);
st->fastmask = XCreatePixmap (st->dpy, st->window, fastcw, st->fastch+1, st->xgwa.depth);
#endif
setink(BlackPixelOfScreen (st->xgwa.screen));
XFillRectangle (st->dpy, st->buffer , st->gc, 0, 0, st->scrnWidth, st->scrnHeight);
#ifdef FASTCOPY
setink(0);
XFillRectangle (st->dpy, st->fastcircles, st->gc, 0, 0, fastcw, st->fastch+1);
XFillRectangle (st->dpy, st->fastmask , st->gc, 0, 0, fastcw, st->fastch+1);
#endif
#ifdef PRTDBX
printf("move\t%.2f\nwobber\t%.2f\nmag\t%.2f\ncycle\t%.4f\n",
st->movef,st->wobber,st->mag/10,st->cycle);
printf("fast\t%i\nmarks\t%i\nwait\t%i\n",st->fastch,st->maxk,st->timewait);
#endif
}
static void fill_kugel(struct state *st, int i, Pixmap buf, int setcol);
/*------------------------------------------------------------------*/
static void
init_kugel(struct state *st)
{
#ifdef FASTDRAW
int i;
for(i=0; i<st->fastch; i++)
{
# ifdef FASTCOPY
st->kugeln[i].r1=-((double) i)/2 -1;
st->kugeln[i].x1=sum1ton(i);
st->kugeln[i].y1=((double) i)/2 +1;
fill_kugel(st,i,st->fastcircles,1);
setink((1<<MIN(24,st->xgwa.depth))-1);
fill_kugel(st,i,st->fastmask,0);
# else
st->kugeln[i].r1=-((double) i)/2 -1;
st->kugeln[i].x1=st->kugeln[i].y1=((double) i)/2 +1;
fill_kugel(i,st->buffer,1);
st->fastcircles[i]=XGetImage(st->dpy,st->buffer,0,0,i+2,i+2,(1<<st->planes)-1,ZPixmap);
setink((1<<MIN(24,st->xgwa.depth))-1);
fill_kugel(i,st->buffer,0);
st->fastmask[i]=XGetImage(st->dpy,st->buffer,0,0,i+2,i+2,(1<<st->planes)-1,ZPixmap);
setink(0);
XFillRectangle (st->dpy, st->buffer , st->gc, 0, 0, st->scrnWidth, st->scrnHeight);
# endif
}
st->fastdraw=1;
#endif
}
/* Zeiger zeichnen */
static void
zeiger(struct state *st, double dist,double rad, double z, double sec, int *q)
{
int i,n;
double gratio=sqrt(2.0/(1.0+sqrt(5.0)));
n = *q;
for(i=0;i<3;i++)
{
st->kugeln[n].x=dist*cos(sec);
st->kugeln[n].y=-dist*sin(sec);
st->kugeln[n].z=z;
st->kugeln[n].r=rad;
n++;
dist += rad;
rad = rad*gratio;
}
*q = n;
}
/*-----------------------------------------------------------------*
* Uhr zeichnen *
*-----------------------------------------------------------------*/
static void
manipulate(struct state *st, double k)
{
double i,l,/*xs,*/ys,zs,mod;
double /*persec,*/sec,min,hour;
int n;
sec=TWOPI*modf(k/60,&mod);
min=TWOPI*modf(k/3600,&mod);
hour=TWOPI*modf(k/43200,&mod);
l=TWOPI*modf(k/300,&mod);
i=0.0;
for (n=0;n<kmax;n++)
{
st->kugeln[n].x=4.0*sin(i);
st->kugeln[n].y=4.0*cos(i);
st->kugeln[n].z=st->wobber* /* (sin(floor(2+2*l/(PI))*i)*sin(2*l)); */
cos((i-sec)*floor(2+5*l/(PI)))*sin(5*l);
if(st->minutes)
{
st->kugeln[n].r=/* (1.0+0.3*cos(floor(2+2*l/(PI))*i)*sin(2*l))* */
((n % 5!=0) ? 0.3 : 0.6)*
((n % 15 ==0) ? 1.25 : .75);
}
else
{
st->kugeln[n].r=/* (1.0+0.3*cos(floor(2+2*l/(PI))*i)*sin(2*l))* */
((n & 1) ? 0.5 : 1.0)*
((n % 6==0) ? 1.25 : .75);
}
i+=TWOPI/kmax;
}
st->kugeln[n].x=0.0;
st->kugeln[n].y=0.0;
st->kugeln[n].z=0.0;
st->kugeln[n].r=2.0+cos(TWOPI*modf(k,&mod))/2;
n++;
zeiger(st,2.0,0.75,-2.0,sec,&n);
zeiger(st,1.0,1.0,-1.5,min,&n);
zeiger(st,0.0,1.5,-1.0,hour,&n);
for(n=0;n<st->maxk;n++)
{
ys=st->kugeln[n].y*cos(st->movef*sin(st->cycle*sec))+
st->kugeln[n].z*sin(st->movef*sin(st->cycle*sec));
zs=-st->kugeln[n].y*sin(st->movef*sin(st->cycle*sec))+
st->kugeln[n].z*cos(st->movef*sin(st->cycle*sec));
st->kugeln[n].y=ys;
st->kugeln[n].z=zs;
}
}
/*------------------------------------------------------------------*/
static void
t3d_sort(struct state *st, int l, int r)
{
int i,j;
kugeldat ex;
double x;
i=l;j=r;
x=st->kugeln[(l+r)/2].d;
while(1)
{
while(st->kugeln[i].d>x) i++;
while(x>st->kugeln[j].d) j--;
if (i<=j)
{
ex=st->kugeln[i];st->kugeln[i]=st->kugeln[j];st->kugeln[j]=ex;
i++;j--;
}
if (i>j) break;
}
if (l<j) t3d_sort(st,l,j);
if (i<r) t3d_sort(st,i,r);
}
/*------------------------------------------------------------------*/
static void
fill_kugel(struct state *st, int i, Pixmap buf, int setcol)
{
double ra;
int m,col,inr=3,d;
#ifdef USE_POLYGON
int inc=1;
#endif
d=(int)((ABS(st->kugeln[i].r1)*2));
if (d==0) d=1;
#ifdef FASTDRAW
if(st->fastdraw && d<st->fastch)
{
# ifdef FASTCOPY
XCopyArea(st->dpy, st->fastmask, buf, st->andgc, sum1ton(d)-(d+1)/2, 1,d,d,
(int)(st->kugeln[i].x1)-d/2, (int)(st->kugeln[i].y1)-d/2);
XCopyArea(st->dpy, st->fastcircles, buf, st->orgc, sum1ton(d)-(d+1)/2, 1,d,d,
(int)(st->kugeln[i].x1)-d/2, (int)(st->kugeln[i].y1)-d/2);
# else
XPutImage(st->dpy, buf, st->andgc, st->fastmask[d-1], 0, 0,
(int)(st->kugeln[i].x1)-d/2, (int)(st->kugeln[i].y1)-d/2, d, d);
XPutImage(st->dpy, buf, st->orgc, st->fastcircles[d-1], 0, 0,
(int)(st->kugeln[i].x1)-d/2, (int)(st->kugeln[i].y1)-d/2, d, d);
# endif
}
else
#endif
{
if(ABS(st->kugeln[i].r1)<6.0) inr=9;
for (m=0;m<=28;m+=inr)
{
ra=st->kugeln[i].r1*sqrt(1-m*m/(28.0*28.0));
#ifdef PRTDBX
printf("Radius: %f\n",ra);
#endif
#ifdef USE_POLYGON
if(-ra< 3.0) inc=14;
else if(-ra< 6.0) inc=8;
else if(-ra<20.0) inc=4;
else if(-ra<40.0) inc=2;
#endif
if(setcol)
{
if (m==27)
col=33;
else
col=(int)(m);
if (col>33)
col=33;
col/=3;
setink(st->colors[col].pixel);
}
#ifdef USE_POLYGON
{
int n, nr;
for (n=0,nr=0;n<=sines-1;n+=inc,nr++)
{
track[nr].x=st->kugeln[i].x1+(int)(ra*st->sinus[n])+(st->kugeln[i].r1-ra)/2;
track[nr].y=st->kugeln[i].y1+(int)(ra*st->cosinus[n])+(st->kugeln[i].r1-ra)/2;
}
XFillPolygon(st->dpy,buf,st->gc,track,nr,Convex,CoordModeOrigin);
}
#else /* Use XFillArc */
XFillArc(st->dpy, buf, st->gc,
(int)(st->kugeln[i].x1+(st->kugeln[i].r1+ra)/2),
(int)(st->kugeln[i].y1+(st->kugeln[i].r1+ra)/2),
(int)-(2*ra+1), (int)-(2*ra+1), 0, 360*64);
#endif
}
}
}
/*------------------------------------------------------------------*/
static void
init_3d(struct state *st)
{
double i;
int n=0;
st->a[0]=0.0;
st->a[1]=0.0;
st->a[2]=-10.0;
st->x[0]=10.0;
st->x[1]=0.0;
st->x[2]=0.0;
st->y[0]=0.0;
st->y[1]=10.0;
st->y[2]=0.0;
st->zoom=-10.0;
st->speed=.0;
for (i=0.0;n<sines;i+=TWOPI/sines,n++)
{
st->sinus[n]=sin(i);
st->cosinus[n]=cos(i);
}
}
/*------------------------------------------------------------------*/
static void
vektorprodukt(double feld1[], double feld2[], double feld3[])
{
feld3[0]=feld1[1]*feld2[2]-feld1[2]*feld2[1];
feld3[1]=feld1[2]*feld2[0]-feld1[0]*feld2[2];
feld3[2]=feld1[0]*feld2[1]-feld1[1]*feld2[0];
}
/*------------------------------------------------------------------*/
static void
turn(double feld1[], double feld2[], double winkel)
{
double temp[3];
double s,ca,sa,sx1,sx2,sx3;
vektorprodukt(feld1,feld2,temp);
s=feld1[0]*feld2[0]+feld1[1]*feld2[1]+feld1[2]*feld2[2];
sx1=s*feld2[0];
sx2=s*feld2[1];
sx3=s*feld2[2];
sa=sin(winkel);ca=cos(winkel);
feld1[0]=ca*(feld1[0]-sx1)+sa*temp[0]+sx1;
feld1[1]=ca*(feld1[1]-sx2)+sa*temp[1]+sx2;
feld1[2]=ca*(feld1[2]-sx3)+sa*temp[2]+sx3;
}
/*------------------------------------------------------------------*/
/* 1: Blickrichtung v;3:Ebenenmittelpunkt m
double feld1[],feld3[]; */
static void
viewpoint(struct state *st)
{
st->am[0]=-st->zoom*st->v[0];
st->am[1]=-st->zoom*st->v[1];
st->am[2]=-st->zoom*st->v[2];
st->zaehler=norm*norm*st->zoom;
}
/*------------------------------------------------------------------*/
static void
projektion(struct state *st)
{
double c1[3],c2[3],k[3],x1,y1;
double cno,cnorm/*,magnit*/;
int i;
for (i=0;i<st->maxk;i++)
{
c1[0]=st->kugeln[i].x-st->a[0];
c1[1]=st->kugeln[i].y-st->a[1];
c1[2]=st->kugeln[i].z-st->a[2];
cnorm=sqrt(c1[0]*c1[0]+c1[1]*c1[1]+c1[2]*c1[2]);
c2[0]=c1[0];
c2[1]=c1[1];
c2[2]=c1[2];
cno=c2[0]*st->v[0]+c2[1]*st->v[1]+c2[2]*st->v[2];
st->kugeln[i].d=cnorm;
if (cno<0) st->kugeln[i].d=-20.0;
st->kugeln[i].r1=(st->mag*st->zoom*st->kugeln[i].r/cnorm);
c2[0]=st->v[0]/cno;
c2[1]=st->v[1]/cno;
c2[2]=st->v[2]/cno;
vektorprodukt(c2,c1,k);
x1=(st->startx+(st->x[0]*k[0]+st->x[1]*k[1]+st->x[2]*k[2])*st->mag);
y1=(st->starty-(st->y[0]*k[0]+st->y[1]*k[1]+st->y[2]*k[2])*st->mag);
if( (x1>-2000.0)
&& (x1<st->scrnWidth+2000.0)
&& (y1>-2000.0)
&& (y1<st->scrnHeight+2000.0))
{
st->kugeln[i].x1=(int)x1;
st->kugeln[i].y1=(int)y1;
}
else
{
st->kugeln[i].x1=0;
st->kugeln[i].y1=0;
st->kugeln[i].d=-20.0;
}
}
}
static void *
t3d_init (Display *dpy, Window window)
{
struct state *st = (struct state *) calloc (1, sizeof(*st));
st->dpy = dpy;
st->window = window;
st->dpy = dpy;
st->window = window;
initialize(st);
initColor(st,st->r,st->g,st->b);
init_3d(st);
st->zeit=(struct tm *)malloc(sizeof(struct tm));
init_kugel(st);
st->startx=st->scrnWidth/2;
st->starty=st->scrnHeight/2;
st->scrnH2=st->startx;
st->scrnW2=st->starty;
st->vspeed=0;
vektorprodukt(st->x,st->y,st->v);
viewpoint(st/*m,v*/);
setink (BlackPixelOfScreen(st->xgwa.screen));
XFillRectangle (st->dpy, st->window, st->gc, 0, 0, st->scrnWidth, st->scrnHeight);
XQueryPointer (st->dpy, st->window, &st->junk_win, &st->junk_win, &st->junk, &st->junk,
&st->px, &st->py, &st->kb);
return st;
}
static unsigned long
t3d_draw (Display *d, Window w, void *closure)
{
struct state *st = (struct state *) closure;
double dtime;
double vnorm;
/*--------------- Zeichenteil --------------*/
vektorprodukt(st->x,st->y,st->v);
vnorm=sqrt(st->v[0]*st->v[0]+st->v[1]*st->v[1]+st->v[2]*st->v[2]);
st->v[0]=st->v[0]*norm/vnorm;
st->v[1]=st->v[1]*norm/vnorm;
st->v[2]=st->v[2]*norm/vnorm;
vnorm=sqrt(st->x[0]*st->x[0]+st->x[1]*st->x[1]+st->x[2]*st->x[2]);
st->x[0]=st->x[0]*norm/vnorm;
st->x[1]=st->x[1]*norm/vnorm;
st->x[2]=st->x[2]*norm/vnorm;
vnorm=sqrt(st->y[0]*st->y[0]+st->y[1]*st->y[1]+st->y[2]*st->y[2]);
st->y[0]=st->y[0]*norm/vnorm;
st->y[1]=st->y[1]*norm/vnorm;
st->y[2]=st->y[2]*norm/vnorm;
projektion(st);
t3d_sort (st,0,st->maxk-1);
dtime=gettime(st);
if(st->cycl)
{
st->draw_color=(int)(64.0*(dtime/60-floor(dtime/60)))-32;
if(st->draw_color<0)
st->draw_color=-st->draw_color;
setink(st->colors[st->draw_color/3].pixel);
}
else
setink(BlackPixelOfScreen (st->xgwa.screen));
XFillRectangle(st->dpy,st->buffer,st->gc,0,0,st->scrnWidth,st->scrnHeight);
{
int i;
manipulate(st,dtime);
for (i=0;i<st->maxk;i++)
{
if (st->kugeln[i].d>0.0)
fill_kugel(st,i,st->buffer,1);
}
}
/* manipulate(gettime());
var+=PI/500;
if (var>=TWOPI) var=PI/500; */
if(st->hsvcycl!=0.0)
{
dtime=st->hsvcycl*dtime/10.0+st->hue/360.0;
dtime=360*(dtime-floor(dtime));
hsv2rgb(dtime,st->sat,st->val,&st->r,&st->g,&st->b);
changeColor(st,st->r,st->g,st->b);
}
XCopyArea (st->dpy, st->buffer, st->window, st->gc, 0, 0, st->scrnWidth, st->scrnHeight, 0, 0);
/*-------------------------------------------------*/
XQueryPointer (st->dpy, st->window, &st->junk_win, &st->in_win, &st->junk, &st->junk,
&st->px, &st->py, &st->kb);
if ((st->px>0)&&(st->px<st->scrnWidth)&&(st->py>0)&&(st->py<st->scrnHeight) )
{
if ((st->px !=st->startx)&&(st->kb&Button2Mask))
{
/* printf("y=(%f,%f,%f)",y[0],y[1],y[2]);*/
turn(st->y,st->x,((double)(st->px-st->startx))/(8000*st->mag));
/* printf("->(%f,%f,%f)\n",y[0],y[1],y[2]);*/
}
if ((st->py !=st->starty)&&(st->kb&Button2Mask))
{
/* printf("x=(%f,%f,%f)",x[0],x[1],x[2]);*/
turn(st->x,st->y,((double)(st->py-st->starty))/(-8000*st->mag));
/* printf("->(%f,%f,%f)\n",x[0],x[1],x[2]);*/
}
if ((st->kb&Button1Mask))
{
if (st->vturn==0.0) st->vturn=.005; else if (st->vturn<2) st->vturn+=.01;
turn(st->x,st->v,.002*st->vturn);
turn(st->y,st->v,.002*st->vturn);
}
if ((st->kb&Button3Mask))
{
if (st->vturn==0.0) st->vturn=.005; else if (st->vturn<2) st->vturn+=.01;
turn(st->x,st->v,-.002*st->vturn);
turn(st->y,st->v,-.002*st->vturn);
}
}
if (!(st->kb&Button1Mask)&&!(st->kb&Button3Mask))
st->vturn=0;
st->speed=st->speed+st->speed*st->vspeed;
if ((st->speed<0.0000001) &&(st->vspeed>0.000001)) st->speed=0.000001;
st->vspeed=.1*st->vspeed;
if (st->speed>0.01) st->speed=.01;
st->a[0]=st->a[0]+st->speed*st->v[0];
st->a[1]=st->a[1]+st->speed*st->v[1];
st->a[2]=st->a[2]+st->speed*st->v[2];
return st->timewait;
}
static void
t3d_reshape (Display *dpy, Window window, void *closure,
unsigned int w, unsigned int h)
{
struct state *st = (struct state *) closure;
if (w != st->scrnWidth ||
h != st->scrnHeight)
{
XFreePixmap (st->dpy, st->buffer);
st->scrnWidth = w;
st->scrnHeight = h;
st->buffer = XCreatePixmap (st->dpy, st->window, st->scrnWidth, st->scrnHeight, st->xgwa.depth);
st->startx=st->scrnWidth/2;
st->starty=st->scrnHeight/2;
st->scrnH2=st->startx;
st->scrnW2=st->starty;
}
}
static Bool
t3d_event (Display *dpy, Window window, void *closure, XEvent *event)
{
struct state *st = (struct state *) closure;
if (event->type == KeyPress)
{
KeySym keysym;
char kpr = 0;
XLookupString (&event->xkey, &kpr, 1, &keysym, 0);
switch (kpr)
{
case 's': case 'S':
st->vspeed = 0.5;
return True;
case 'a': case 'A':
st->vspeed = -0.3;
return True;
case '0':
st->speed = 0;
st->vspeed = 0;
return True;
case 'z': case 'Z':
st->mag *= 1.02;
return True;
case 'x': case 'X':
st->mag /= 1.02;
return True;
default:
break;
}
}
return False;
}
static void
t3d_free (Display *dpy, Window window, void *closure)
{
}
/*-------------------------------------------------*/
static const char *t3d_defaults [] = {
".background: black",
".foreground: white",
"*move: 0.5",
"*wobble: 2.0",
"*cycle: 10.0",
"*mag: 1.0",
"*minutes: False",
"*delay: 40000",
"*fast: 50",
"*colcycle: False",
"*hsvcycle: 0.0",
"*rgb: ",
"*hsv: ",
0
};
static XrmOptionDescRec t3d_options [] = {
{ "-move", ".move", XrmoptionSepArg, 0 },
{ "-wobble", ".wobble", XrmoptionSepArg, 0 },
{ "-cycle", ".cycle", XrmoptionSepArg, 0 },
{ "-mag", ".mag", XrmoptionSepArg, 0 },
{ "-minutes", ".minutes", XrmoptionNoArg, "True" },
{ "-no-minutes", ".minutes", XrmoptionNoArg, "False" },
{ "-delay", ".delay", XrmoptionSepArg, 0 },
{ "-fast", ".fast", XrmoptionSepArg, 0 },
{ "-colcycle", ".colcycle", XrmoptionSepArg, 0 },
{ "-hsvcycle", ".hsvcycle", XrmoptionSepArg, 0 },
{ "-rgb", ".rgb", XrmoptionSepArg, 0 },
{ "-hsv", ".hsv", XrmoptionSepArg, 0 },
{ 0, 0, 0, 0 }
};
XSCREENSAVER_MODULE ("T3D", t3d)