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locations improvement

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This commit is contained in:
Zeno Rogue 2019-11-22 17:02:40 +01:00
parent a1c7b8db3d
commit 8ddd95d44e
1 changed files with 13 additions and 2 deletions

15
locations.cpp

@ -442,14 +442,25 @@ inline cellwalker operator+ (heptspin hs, cth_t) { return cellwalker(hs.at->c7,
* but also sometimes for other moves
*/
constexpr int STRONGWIND = 99;
constexpr int FALL = 98;
namespace whirlwind { cell *jumpDestination(cell*); }
struct movei {
cell *s;
cell *t;
int d;
bool proper() const { return d >= 0 && d < s->type && s->move(d) == t; }
movei(cell *_s, int _d) : s(_s), t(_s->move(_d)), d(_d) {}
movei(cell *_s, int _d) : s(_s), d(_d) {
if(d == STRONGWIND) t = whirlwind::jumpDestination(s);
else if(d == FALL) t = s;
else t = s->move(d);
}
movei(cell *_s, cell *_t, int _d) : s(_s), t(_t), d(_d) {}
movei rev() const { return movei(t, s, d >= 0 && d < s->type ? s->c.spin(d) : d); }
movei rev() const { return movei(t, s, rev_dir_or(d)); }
int dir_or(int x) const { return proper() ? d : x; }
int rev_dir_or(int x) const { return proper() ? s->c.spin(d) : x; }
};
#endif