mirror of
https://github.com/ilyakooo0/urbit.git
synced 2024-09-20 06:58:16 +03:00
94 lines
2.3 KiB
C
94 lines
2.3 KiB
C
/* j/6/ut_park.c
|
|
**
|
|
** This file is in the public domain.
|
|
*/
|
|
#include "all.h"
|
|
|
|
|
|
/* logic
|
|
*/
|
|
u3_bean
|
|
_cqfu_park(
|
|
u3_noun van,
|
|
u3_noun sut,
|
|
u3_noun way,
|
|
u3_atom axe)
|
|
{
|
|
if ( u3_no == u3du(sut) || c3__core != u3h(sut) ) {
|
|
return u3_cm_bail(c3__fail);
|
|
}
|
|
// else if ( u3_no == u3_cj_hook(u3k(van), "vet") ) {
|
|
else if ( u3_no == u3_cr_at(u3_cqfu_van_vet, van) ) {
|
|
return u3_yes;
|
|
}
|
|
else {
|
|
u3_noun p_sut, q_sut, pq_sut;
|
|
|
|
u3_cx_cell(u3t(sut), &p_sut, &q_sut);
|
|
u3_cx_cell(q_sut, &pq_sut, 0);
|
|
|
|
if ( c3__both == way ) {
|
|
if ( c3__gold == pq_sut ) {
|
|
return u3_yes;
|
|
} else return u3_no;
|
|
}
|
|
if ( c3__read == way ) {
|
|
switch ( pq_sut ) {
|
|
default: return u3_cm_bail(c3__fail);
|
|
|
|
case c3__gold: return u3_yes;
|
|
case c3__lead: return u3_no;
|
|
case c3__iron: return u3_no;
|
|
case c3__zinc: return
|
|
u3_and(u3_not(u3_cr_sing(1, axe)),
|
|
u3_cr_sing(2, u3_cqc_cap(axe)));
|
|
}
|
|
}
|
|
else if ( c3__rite == way ) {
|
|
switch ( pq_sut ) {
|
|
default: return u3_cm_bail(c3__fail);
|
|
|
|
case c3__gold: return u3_yes;
|
|
case c3__lead: return u3_no;
|
|
case c3__iron: return
|
|
u3_and(u3_not(u3_cr_sing(1, axe)),
|
|
u3_cr_sing(2, u3_cqc_cap(axe)));
|
|
case c3__zinc: return u3_no;
|
|
}
|
|
}
|
|
else if ( c3__free == way ) { return u3_yes; }
|
|
else return u3_cm_bail(c3__fail);
|
|
}
|
|
}
|
|
|
|
/* boilerplate
|
|
*/
|
|
u3_noun
|
|
u3_cwfu_park(
|
|
u3_noun cor)
|
|
{
|
|
u3_noun sut, way, axe, van;
|
|
|
|
if ( (u3_no == u3_cr_mean(cor, u3_cv_sam_2, &way,
|
|
u3_cv_sam_3, &axe,
|
|
u3_cv_con, &van,
|
|
0)) ||
|
|
(u3_no == u3ud(axe)) ||
|
|
(u3_none == (sut = u3_cr_at(u3_cv_sam, van))) )
|
|
{
|
|
return u3_cm_bail(c3__fail);
|
|
} else {
|
|
return _cqfu_park(van, sut, way, axe);
|
|
}
|
|
}
|
|
|
|
u3_noun
|
|
u3_cqfu_park(u3_noun van,
|
|
u3_noun sut,
|
|
u3_noun way,
|
|
u3_noun axe)
|
|
{
|
|
return _cqfu_park(van, sut, way, axe);
|
|
}
|
|
|