mirror of
https://github.com/9fans/plan9port.git
synced 2025-01-15 11:20:03 +00:00
87 lines
1.5 KiB
C
87 lines
1.5 KiB
C
|
#include <stdio.h>
|
||
|
|
#include "pic.h"
|
||
|
|
#include "y.tab.h"
|
||
|
|
|
||
|
|
obj *movegen(void)
|
||
|
|
{
|
||
|
|
static double prevdx, prevdy;
|
||
|
|
int i, some;
|
||
|
|
double defx, defy, dx, dy;
|
||
|
|
obj *p;
|
||
|
|
obj *ppos;
|
||
|
|
static int xtab[] = { 1, 0, -1, 0 }; /* R=0, U=1, L=2, D=3 */
|
||
|
|
static int ytab[] = { 0, 1, 0, -1 };
|
||
|
|
Attr *ap;
|
||
|
|
|
||
|
|
defx = getfval("movewid");
|
||
|
|
defy = getfval("moveht");
|
||
|
|
dx = dy = some = 0;
|
||
|
|
for (i = 0; i < nattr; i++) {
|
||
|
|
ap = &attr[i];
|
||
|
|
switch (ap->a_type) {
|
||
|
|
case TEXTATTR:
|
||
|
|
savetext(ap->a_sub, ap->a_val.p);
|
||
|
|
break;
|
||
|
|
case SAME:
|
||
|
|
dx = prevdx;
|
||
|
|
dy = prevdy;
|
||
|
|
some++;
|
||
|
|
break;
|
||
|
|
case LEFT:
|
||
|
|
dx -= (ap->a_sub==DEFAULT) ? defx : ap->a_val.f;
|
||
|
|
some++;
|
||
|
|
hvmode = L_DIR;
|
||
|
|
break;
|
||
|
|
case RIGHT:
|
||
|
|
dx += (ap->a_sub==DEFAULT) ? defx : ap->a_val.f;
|
||
|
|
some++;
|
||
|
|
hvmode = R_DIR;
|
||
|
|
break;
|
||
|
|
case UP:
|
||
|
|
dy += (ap->a_sub==DEFAULT) ? defy : ap->a_val.f;
|
||
|
|
some++;
|
||
|
|
hvmode = U_DIR;
|
||
|
|
break;
|
||
|
|
case DOWN:
|
||
|
|
dy -= (ap->a_sub==DEFAULT) ? defy : ap->a_val.f;
|
||
|
|
some++;
|
||
|
|
hvmode = D_DIR;
|
||
|
|
break;
|
||
|
|
case TO:
|
||
|
|
ppos = ap->a_val.o;
|
||
|
|
dx = ppos->o_x - curx;
|
||
|
|
dy = ppos->o_y - cury;
|
||
|
|
some++;
|
||
|
|
break;
|
||
|
|
case BY:
|
||
|
|
ppos = ap->a_val.o;
|
||
|
|
dx = ppos->o_x;
|
||
|
|
dy = ppos->o_y;
|
||
|
|
some++;
|
||
|
|
break;
|
||
|
|
case FROM:
|
||
|
|
case AT:
|
||
|
|
ppos = ap->a_val.o;
|
||
|
|
curx = ppos->o_x;
|
||
|
|
cury = ppos->o_y;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (some) {
|
||
|
|
defx = dx;
|
||
|
|
defy = dy;
|
||
|
|
} else {
|
||
|
|
defx *= xtab[hvmode];
|
||
|
|
defy *= ytab[hvmode];
|
||
|
|
}
|
||
|
|
prevdx = defx;
|
||
|
|
prevdy = defy;
|
||
|
|
extreme(curx, cury);
|
||
|
|
curx += defx;
|
||
|
|
cury += defy;
|
||
|
|
extreme(curx, cury);
|
||
|
|
p = makenode(MOVE, 0);
|
||
|
|
dprintf("M %g %g\n", curx, cury);
|
||
|
|
return(p);
|
||
|
|
}
|