mirror of
https://github.com/zenorogue/hyperrogue.git
synced 2024-12-24 17:10:36 +00:00
376 lines
9.2 KiB
C++
376 lines
9.2 KiB
C++
// Hyperbolic Rogue
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// Copyright (C) 2011-2012 Zeno Rogue, see 'hyper.cpp' for details
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// cells the game is played on
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int fix6(int a) { return (a+96)% 6; }
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struct cell : gcell {
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char type; // 6 for hexagons, 7 for heptagons
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unsigned char spn[7];
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heptagon *master;
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cell *mov[7]; // meaning very similar to heptagon::move
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};
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int cellcount = 0;
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void initcell(cell *c); // from game.cpp
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cell *newCell(int type, heptagon *master) {
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cell *c = new cell;
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cellcount++;
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c->type = type;
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c->master = master;
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for(int i=0; i<7; i++) c->mov[i] = NULL;
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initcell(c);
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return c;
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}
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void merge(cell *c, int d, cell *c2, int d2) {
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c->mov[d] = c2;
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c->spn[d] = d2;
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c2->mov[d2] = c;
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c2->spn[d2] = d;
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}
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typedef unsigned short eucoord;
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cell*& euclideanAtCreate(eucoord x, eucoord y);
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union heptacoder {
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heptagon *h;
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struct { eucoord x; eucoord y; } c;
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};
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void decodeMaster(heptagon *h, eucoord& x, eucoord& y) {
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heptacoder u;
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u.h = h; x = u.c.x; y = u.c.y;
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}
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heptagon* encodeMaster(eucoord x, eucoord y) {
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heptacoder u;
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u.c.x = x; u.c.y = y;
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return u.h;
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}
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// very similar to createMove in heptagon.cpp
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cell *createMov(cell *c, int d) {
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if(euclid && !c->mov[d]) {
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eucoord x, y;
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decodeMaster(c->master, x, y);
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for(int dx=-1; dx<=1; dx++)
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for(int dy=-1; dy<=1; dy++)
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euclideanAtCreate(x+dx, y+dy);
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if(!c->mov[d]) { printf("fail!\n"); }
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}
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if(c->mov[d]) return c->mov[d];
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else if(c->type == 7) {
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cell *n = newCell(6, c->master);
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c->mov[d] = n; n->mov[0] = c;
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c->spn[d] = 0; n->spn[0] = d;
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heptspin hs; hs.h = c->master; hs.spin = d;
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heptspin hs2 = hsstep(hsspin(hs, 3), 3);
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// merge(hs2.h->c7, hs2.spin, n, 2);
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hs2.h->c7->mov[hs2.spin] = n; n->mov[2] = hs2.h->c7;
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hs2.h->c7->spn[hs2.spin] = 2; n->spn[2] = hs2.spin;
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hs2 = hsstep(hsspin(hs, 4), 4);
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// merge(hs2.h->c7, hs2.spin, n, 4);
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hs2.h->c7->mov[hs2.spin] = n; n->mov[4] = hs2.h->c7;
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hs2.h->c7->spn[hs2.spin] = 4; n->spn[4] = hs2.spin;
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}
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else if(d == 5) {
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int di = fixrot(c->spn[0]+1);
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cell *c2 = createMov(c->mov[0], di);
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merge(c, 5, c2, fix6(c->mov[0]->spn[di] + 1));
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// c->mov[5] = c->mov[0]->mov[fixrot(c->spn[0]+1)];
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// c->spn[5] = fix6(c->mov[0]->spn[fixrot(c->spn[0]+1)] + 1);
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}
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else if(d == 1) {
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int di = fixrot(c->spn[0]-1);
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cell *c2 = createMov(c->mov[0], di);
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merge(c, 1, c2, fix6(c->mov[0]->spn[di] - 1));
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// c->mov[1] = c->mov[0]->mov[fixrot(c->spn[0]-1)];
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// c->spn[1] = fix6(c->mov[0]->spn[fixrot(c->spn[0]-1)] - 1);
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}
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else if(d == 3) {
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int di = fixrot(c->spn[2]-1);
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cell *c2 = createMov(c->mov[2], di);
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merge(c, 3, c2, fix6(c->mov[2]->spn[di] - 1));
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// c->mov[3] = c->mov[2]->mov[fixrot(c->spn[2]-1)];
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// c->spn[3] = fix6(c->mov[2]->spn[fixrot(c->spn[2]-1)] - 1);
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}
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return c->mov[d];
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}
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// similar to heptspin from heptagon.cpp
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struct cellwalker {
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cell *c;
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int spin;
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cellwalker(cell *c, int spin) : c(c), spin(spin) {}
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cellwalker() {}
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};
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void cwspin(cellwalker& cw, int d) {
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cw.spin = (cw.spin+d + 42) % cw.c->type;
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}
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bool cwstepcreates(cellwalker& cw) {
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return cw.c->mov[cw.spin] == NULL;
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}
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void cwstep(cellwalker& cw) {
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createMov(cw.c, cw.spin);
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int nspin = cw.c->spn[cw.spin];
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cw.c = cw.c->mov[cw.spin];
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cw.spin = nspin;
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}
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void eumerge(cell* c1, cell *c2, int s1, int s2) {
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if(!c2) return;
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c1->mov[s1] = c2; c1->spn[s1] = s2;
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c2->mov[s2] = c1; c2->spn[s2] = s1;
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}
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struct euclideanSlab {
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cell* a[256][256];
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euclideanSlab() {
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for(int y=0; y<256; y++) for(int x=0; x<256; x++)
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a[y][x] = NULL;
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}
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~euclideanSlab() {
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for(int y=0; y<256; y++) for(int x=0; x<256; x++)
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if(a[y][x]) delete a[y][x];
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}
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};
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euclideanSlab* euclidean[256][256];
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// map<pair<eucoord, eucoord>, cell*> euclidean;
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cell*& euclideanAt(eucoord x, eucoord y) {
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euclideanSlab*& slab(euclidean[y>>8][x>>8]);
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if(!slab) slab = new euclideanSlab;
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return slab->a[y&255][x&255];
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}
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cell*& euclideanAtCreate(eucoord x, eucoord y) {
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cell*& c ( euclideanAt(x,y) );
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if(!c) {
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c = newCell(6, &origin);
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c->master = encodeMaster(x,y);
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euclideanAt(x,y) = c;
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eumerge(c, euclideanAt(x+1,y), 0, 3);
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eumerge(c, euclideanAt(x,y+1), 1, 4);
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eumerge(c, euclideanAt(x-1,y+1), 2, 5);
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eumerge(c, euclideanAt(x-1,y), 3, 0);
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eumerge(c, euclideanAt(x,y-1), 4, 1);
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eumerge(c, euclideanAt(x+1,y-1), 5, 2);
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}
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return c;
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}
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// initializer (also inits origin from heptagon.cpp)
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void initcells() {
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origin.s = hsOrigin;
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origin.fjordval = 98;
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for(int i=0; i<7; i++) origin.move[i] = NULL;
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origin.alt = NULL;
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origin.distance = 0;
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if(euclid)
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origin.c7 = euclideanAtCreate(0,0);
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else
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origin.c7 = newCell(7, &origin);
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// origin.fjordval =
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}
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#define DEBMEM(x) // { x fflush(stdout); }
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void clearcell(cell *c) {
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if(!c) return;
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DEBMEM ( printf("c%d %p\n", c->type, c); )
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for(int t=0; t<c->type; t++) if(c->mov[t]) {
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DEBMEM ( printf("mov %p [%p] S%d\n", c->mov[t], c->mov[t]->mov[c->spn[t]], c->spn[t]); )
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if(c->mov[t]->mov[c->spn[t]] != NULL &&
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c->mov[t]->mov[c->spn[t]] != c) {
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printf("cell error\n");
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exit(1);
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}
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c->mov[t]->mov[c->spn[t]] = NULL;
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}
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DEBMEM ( printf("DEL %p\n", c); )
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delete c;
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}
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heptagon deletion_marker;
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#include <queue>
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void clearfrom(heptagon *at) {
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queue<heptagon*> q;
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q.push(at);
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at->alt = &deletion_marker;
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//int maxq = 0;
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while(!q.empty()) {
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at = q.front();
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// if(q.size() > maxq) maxq = q.size();
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q.pop();
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DEBMEM ( printf("from %p\n", at); )
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for(int i=0; i<7; i++) if(at->move[i]) {
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if(at->move[i]->alt != &deletion_marker)
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q.push(at->move[i]);
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at->move[i]->alt = &deletion_marker;
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DEBMEM ( printf("!mov %p [%p]\n", at->move[i], at->move[i]->move[at->spin[i]]); )
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if(at->move[i]->move[at->spin[i]] != NULL &&
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at->move[i]->move[at->spin[i]] != at) {
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printf("hept error\n");
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exit(1);
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}
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at->move[i]->move[at->spin[i]] = NULL;
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at->move[i] = NULL;
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}
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DEBMEM ( printf("at %p\n", at); )
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if(at->c7) {
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for(int i=0; i<7; i++)
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clearcell(at->c7->mov[i]);
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clearcell(at->c7);
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}
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DEBMEM ( printf("!DEL %p\n", at); )
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if(at != &origin) delete at;
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}
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//printf("maxq = %d\n", maxq);
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}
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void verifycell(cell *c) {
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int t = c->type;
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for(int i=0; i<t; i++) {
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cell *c2 = c->mov[i];
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if(c2) {
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if(t == 7) verifycell(c2);
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if(c2->mov[c->spn[i]] && c2->mov[c->spn[i]] != c)
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printf("cell error %p %p\n", c, c2);
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}
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}
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}
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void verifycells(heptagon *at) {
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for(int i=0; i<7; i++) if(at->move[i] && at->spin[i] == 0 && at->move[i] != &origin)
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verifycells(at->move[i]);
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for(int i=0; i<7; i++) if(at->move[i] && at->move[i]->move[at->spin[i]] && at->move[i]->move[at->spin[i]] != at) {
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printf("hexmix error %p %p %p\n", at, at->move[i], at->move[i]->move[at->spin[i]]);
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}
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verifycell(at->c7);
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}
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bool ishept(cell *c) {
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// EUCLIDEAN
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if(euclid) {
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eucoord x, y;
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decodeMaster(c->master, x, y);
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return (short(y+2*x))%3 == 0;
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}
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else return c->type == 7;
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}
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void clearMemory() {
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extern void clearGameMemory();
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clearGameMemory();
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// EUCLIDEAN
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if(euclid) {
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for(int y=0; y<256; y++) for(int x=0; x<256; x++)
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if(euclidean[y][x]) {
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delete euclidean[y][x];
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euclidean[y][x] = NULL;
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}
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}
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else {
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DEBMEM ( verifycells(&origin); )
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clearfrom(&origin);
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for(int i=0; i<size(allAlts); i++) clearfrom(allAlts[i]);
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allAlts.clear();
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}
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DEBMEM ( printf("ok\n"); )
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}
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int fjordval(cell *c) {
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if(euclid) return 0;
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if(c->type == 7)
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return c->master->fjordval >> 3;
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else {
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return fjord_hexagon(
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fjordval(createMov(c,0)),
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fjordval(createMov(c,2)),
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fjordval(createMov(c,4))
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);
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}
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}
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int eudist(short sx, short sy) {
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int z0 = abs(sx);
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int z1 = abs(sy);
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int z2 = abs(sx+sy);
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return max(max(z0,z1), z2);
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}
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int celldist(cell *c) {
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if(euclid) {
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eucoord x, y;
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decodeMaster(c->master, x, y);
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return eudist(x, y);
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}
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if(c->type == 7) return c->master->distance;
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int dx[3];
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for(int u=0; u<3; u++)
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dx[u] = createMov(c, u+u)->master->distance;
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int mi = min(min(dx[0], dx[1]), dx[2]);
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if(dx[0] > mi+2 || dx[1] > mi+2 || dx[2] > mi+2)
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return -1; // { printf("cycle error!\n"); exit(1); }
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if(dx[0] == mi+2 || dx[1] == mi+2 || dx[2] == mi+2)
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return mi+1;
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return mi;
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}
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#define ALTDIST_BOUNDARY 99999
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#define ALTDIST_UNKNOWN 99998
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// defined in 'game'
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int euclidAlt(short x, short y);
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int celldistAlt(cell *c) {
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if(euclid) {
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eucoord x, y;
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decodeMaster(c->master, x, y);
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return euclidAlt(x, y);
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}
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if(c->type == 7) return c->master->alt->distance;
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int dx[3];
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for(int u=0; u<3; u++) if(createMov(c, u+u)->master->alt == NULL)
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return ALTDIST_UNKNOWN;
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for(int u=0; u<3; u++)
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dx[u] = createMov(c, u+u)->master->alt->distance;
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int mi = min(min(dx[0], dx[1]), dx[2]);
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if(dx[0] > mi+2 || dx[1] > mi+2 || dx[2] > mi+2)
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return ALTDIST_BOUNDARY; // { printf("cycle error!\n"); exit(1); }
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if(dx[0] == mi+2 || dx[1] == mi+2 || dx[2] == mi+2)
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return mi+1;
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return mi;
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}
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#define GRAIL_FOUND 0x4000
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#define GRAIL_RADIUS_MASK 0x3FFF
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