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hyperrogue/generators/quartic.cpp
2018-11-24 00:03:37 +01:00

106 lines
2.6 KiB
C++

// this generates data for Klein's Quartic (-geo 0 -quartic) and Bolza surface (in -geo 7 -quartic) and 2x Bolza (-geo7 -quartic2)
// Copyright (C) 2018 Zeno Rogue, see 'hyper.cpp' for details
#include "../init.cpp"
using namespace hr;
int qty;
namespace hr {
cellwalker& operator += (cellwalker& cw, int spin);
cellwalker& operator += (cellwalker& cw, wstep_t);
}
void recursive(cell *c, int col, int dir, int dbl) {
c->landparam = col;
c->mondir = dir;
c->monst = moButterfly;
if(S7 == 7) {
for(int i=0; i<7; i++) {
for(int j=3; j<5; j++) {
cellwalker cw(c, dir + i);
for(int u=0; u<4; u++) {
cw += wstep;
cw += j;
}
cw += -dir;
if(cw.c->landparam == -1) recursive(cw.c, col^dbl, dir, dbl);
}
}
}
if(S7 == 8) {
for(int i=0; i<8; i++) {
cellwalker cw(c, dir);
cw += i;
cw += wstep;
cw += 4;
cw += wstep;
cw += (4-i);
// if(cw.c->landparam == -1) recursive(cw.c, (col ^ 1));
if(cw.c->landparam == -1) recursive(cw.c, col ^ dbl, cw.spin, dbl);
}
}
}
void generate_quartic(bool dbl) {
celllister clgen(cwt.c, S7==7?10:8, 1000000, NULL);
int d;
for(cell *c1: clgen.lst) { c1->landparam = -1; d = celldist(c1); }
for(cell *c1: clgen.lst) if(c1->landparam == -1) {
recursive(c1, qty, 0, dbl);
qty++;
if(dbl) qty++;
}
vector<unsigned> colors;
for(cell *c1: clgen.lst) {
if(celldist(c1) >= d-1) continue;
if(c1->mov[c1->mondir]->landparam > c1->mov[c1->mondir ^ 4]->landparam)
c1->mondir ^= 4;
}
if(0) for(cell *c1: clgen.lst) {
if(celldist(c1) >= d-2) continue;
vector<int> connections;
cellwalker cw(c1, c1->mondir);
for(int i=0; i<S7; i++) {
cellwalker cwx = cw; cwx += wstep;
connections.push_back(cwx.c->landparam * S7 + (cwx.spin - cwx.c->mondir + MODFIXER) % S7);
cw += 1;
}
printf("/* %03d */", c1->landparam);
for(int i=0; i<S7; i++) printf(" %d,", connections[i]);
printf("\n");
}
printf("qty = %d\n", qty);
for(int i=0; i<qty; i++) colors.push_back(hrand(0x1000000));
for(cell *c1: clgen.lst) {
c1->landparam = colors[c1->landparam % qty];
}
}
int readArgs() {
using namespace arg;
if(0) ;
else if(argis("-quartic")) {
PHASE(3);
start_game();
generate_quartic(0);
}
else if(argis("-quartic2")) {
PHASE(3);
start_game();
generate_quartic(1);
}
else return 1;
return 0;
}
auto hook = addHook(hooks_args, 100, readArgs);
// Bolza:: genus 2 => Euler characteristic -2
// octagon: -2/6
// ~> 6 octagons