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asonov:: subtraction operator

This commit is contained in:
Zeno Rogue 2019-11-15 02:16:29 +01:00
parent 2b4f4bd29e
commit c4a4bb7f48
1 changed files with 43 additions and 19 deletions
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62
asonov.cpp
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@ -13,6 +13,10 @@
namespace hr {
#if HDR
int zgmod(int a, int b);
#endif
EX namespace asonov {
EX bool in() { return geometry == gArnoldCat; }
@ -23,31 +27,35 @@ EX transmatrix straighten;
EX int period_xy = 8;
EX int period_z = 8;
#if HDR
struct coord: public array<int,3> {
coord() {}
coord(int x, int y, int z) : array<int,3>(make_array(zgmod(x, period_xy), zgmod(y, period_xy), zgmod(z, period_z))) {}
coord shift(int x, int y, int z=0) { return coord(self[0]+x, self[1]+y, self[2]+z); }
coord up() { return coord(self[0]*2-self[1], self[1]-self[0], self[2]+1); }
coord down() { return coord(self[0]+self[1], self[0]+self[1]*2, self[2]-1); }
coord addmove(int d) {
switch(d) {
case 0: return up().shift(0, 0);
case 1: return up().shift(1, -1);
case 2: return up().shift(-1, 0);
case 3: return up().shift(0, -1);
case 4: return shift(1, 0);
case 5: return shift(0, 1);
case 6: return down().shift(0, 0);
case 7: return down().shift(0, 1);
case 8: return down().shift(1, 1);
case 9: return down().shift(1, 2);
case 10: return shift(-1, 0);
case 11: return shift(0, -1);
default: throw "error";
}
}
coord down() { return coord(self[0]+self[1], self[0]+self[1]*2, self[2]-1); }
coord addmove(int d);
coord operator - (coord b);
};
#endif
coord coord::addmove(int d) {
switch(d) {
case 0: return up().shift(0, 0);
case 1: return up().shift(1, -1);
case 2: return up().shift(-1, 0);
case 3: return up().shift(0, -1);
case 4: return shift(1, 0);
case 5: return shift(0, 1);
case 6: return down().shift(0, 0);
case 7: return down().shift(0, 1);
case 8: return down().shift(1, 1);
case 9: return down().shift(1, 2);
case 10: return shift(-1, 0);
case 11: return shift(0, -1);
default: throw "error";
}
}
EX void prepare() {
using namespace hr;
@ -107,6 +115,18 @@ transmatrix coord_to_matrix(coord c, coord zero) {
return T * eupush(tx * szgmod(c[0]-zero[0], period_xy) + ty * szgmod(c[1]-zero[1], period_xy));
}
coord coord::operator - (coord b) {
auto c = self;
while(b[2]) {
int z = szgmod(b[2], period_z);
if(z > 0) b = b.down(), c = c.down();
else if(z < 0) b = b.up(), c = c.up();
}
c[0] = zgmod(c[0]-b[0], period_xy); b[0] = 0;
c[1] = zgmod(c[1]-b[1], period_xy); b[1] = 0;
return c;
}
EX transmatrix adjmatrix(int i) {
dynamicval<int> pxy(period_xy, 64);
dynamicval<int> pz(period_z, 64);
@ -181,6 +201,10 @@ struct hrmap_asonov : hrmap {
EX hrmap *new_map() { return new hrmap_asonov; }
EX coord get_coord(heptagon *h) { return ((hrmap_asonov*)currentmap)->coords[h]; }
EX heptagon *get_at(coord where) { return ((hrmap_asonov*)currentmap)->at[where]; }
EX int period_xy_edit, period_z_edit;
EX void set_flags() {