mirror of
https://github.com/zenorogue/hyperrogue.git
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269 lines
7.6 KiB
C++
269 lines
7.6 KiB
C++
// Hyperbolic Rogue -- Blizzard
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// Copyright (C) 2011-2019 Zeno Rogue, see 'hyper.cpp' for details
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/** \file blizzard.cpp
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* \brief special graphical effects, such as the Blizzard and arrow traps
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*/
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#include "hyper.h"
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namespace hr {
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struct snowball {
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transmatrix T;
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transmatrix global;
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snowball *prev;
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snowball *next;
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double phase;
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snowball(int t) { T = rgpushxto0(randomPointIn(t)); phase = randd(); }
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};
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#if HDR
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struct blizzardcell;
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#endif
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struct blizzardcell {
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cell *c;
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int frame;
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int tmp;
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transmatrix *gm;
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char wmap;
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int inward, outward, ward;
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int qty[MAX_EDGE];
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vector<snowball*> inorder, outorder;
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int inid, outid;
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~blizzardcell() { for(auto i: inorder) delete i; }
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};
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EX map<cell*, blizzardcell> blizzardcells;
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EX void set_blizzard_frame(cell *c, int frameid) {
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blizzardcells[c].frame = frameid;
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}
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EX vector<blizzardcell*> bcells;
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int blizzard_N;
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EX blizzardcell* getbcell(cell *c) {
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int i = c->listindex;
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if(i<0 || i >= blizzard_N) return NULL;
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if(bcells[i]->c != c) return NULL;
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return bcells[i];
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}
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EX void drawBlizzards() {
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#if CAP_SHAPES && CAP_FIELD
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poly_outline = OUTLINE_NONE;
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auto it = blizzardcells.begin();
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bcells.clear();
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while(it != blizzardcells.end())
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if(it->second.frame != frameid || !gmatrix.count(it->first))
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it = blizzardcells.erase(it);
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else {
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it->second.c = it->first;
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bcells.push_back(&it->second);
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it++;
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}
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blizzard_N = isize(bcells);
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for(int i=0; i<blizzard_N; i++) {
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auto& bc = *bcells[i];
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bc.tmp = bc.c->listindex,
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bc.c->listindex = i;
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bc.gm = &gmatrix[bc.c];
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bc.wmap = windmap::at(bc.c);
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}
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for(int i=0; i<blizzard_N; i++) {
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auto& bc = *bcells[i];
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cell *c = bc.c;
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bc.inward = bc.outward = 0;
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for(int i=0; i<c->type; i++) {
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int& qty = bc.qty[i];
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qty = 0;
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cell *c2 = c->move(i);
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if(!c2) continue;
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auto bc2 = getbcell(c2);
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if(!bc2) continue;
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int z = (bc2->wmap - bc.wmap) & 255;
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if(z >= windmap::NOWINDBELOW && z < windmap::NOWINDFROM)
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bc.outward += qty = z / 8;
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z = (-z) & 255;
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if(z >= windmap::NOWINDBELOW && z < windmap::NOWINDFROM)
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bc.inward += z / 8, qty = -z/8;
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}
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bc.ward = max(bc.inward, bc.outward);
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while(isize(bc.inorder) < bc.ward) {
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auto sb = new snowball(c->type);
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bc.inorder.push_back(sb);
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bc.outorder.push_back(sb);
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}
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for(auto& sb: bc.inorder) sb->prev = sb->next = NULL;
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bc.inid = 0;
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}
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double at = fractick(40);
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for(int i=0; i<blizzard_N; i++) {
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auto& bc = *bcells[i];
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for(auto sb: bc.inorder)
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sb->global = (*bc.gm) * sb->T;
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}
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for(int i=0; i<blizzard_N; i++) {
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auto& bc = *bcells[i];
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cell *c = bc.c;
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bc.outid = 0;
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for(int d=0; d<c->type; d++) for(int k=0; k<bc.qty[d]; k++) {
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auto& bc2 = *getbcell(c->move(d));
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auto& sball = *bc.outorder[bc.outid++];
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auto& sball2 = *bc2.inorder[bc2.inid++];
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sball.next = &sball2;
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sball2.prev = &sball;
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hyperpoint t = inverse(sball.global) * tC0(sball2.global);
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double at0 = at + sball.phase;
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if(at0>1) at0 -= 1;
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transmatrix tpartial = sball.global * rspintox(t) * xpush(hdist0(t) * at0);
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if(wmascii || wmblack)
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queuestr(tpartial, .2, ".", 0xFFFFFF);
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else
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queuepoly(tpartial, cgi.shSnowball, 0xFFFFFF80);
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}
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}
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for(int ii=0; ii<blizzard_N; ii++) {
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auto& bc = *bcells[ii];
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/* if(isNeighbor(bc.c, mouseover)) {
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if(againstWind(mouseover, bc.c))
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queuepoly(*bc.gm, cgi.shHeptaMarker, 0x00C00040);
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if(againstWind(bc.c, mouseover))
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queuepoly(*bc.gm, cgi.shHeptaMarker, 0xC0000040);
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} */
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forCellIdEx(c2, i, bc.c) if(bc.c == mouseover || c2 == mouseover) {
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color_t col = 0x00C00080;
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if(c2 == mouseover)
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col ^= 0xC0C00000;
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if(isPlayerOn(c2))
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col ^= 0x00000040;
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if(isPlayerOn(bc.c))
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col ^= 0x00000040;
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if(againstWind(bc.c, c2))
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queuepoly(*bc.gm * ddspin(bc.c, i) * xpush(cellgfxdist(bc.c, i)/2), cgi.shWindArrow, col);
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}
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int B = isize(bc.outorder);
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if(B<2) continue;
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int i = rand() % B;
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int j = rand() % (B-1);
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if(i==j) j++;
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if(1) {
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auto& sb1 = *bc.outorder[i];
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auto& sb2 = *bc.outorder[j];
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double swapcost = 0;
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if(sb1.next) swapcost -= hdist(tC0(sb1.global), tC0(sb1.next->global));
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if(sb2.next) swapcost -= hdist(tC0(sb2.global), tC0(sb2.next->global));
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if(sb1.next) swapcost += hdist(tC0(sb2.global), tC0(sb1.next->global));
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if(sb2.next) swapcost += hdist(tC0(sb1.global), tC0(sb2.next->global));
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if(swapcost < 0) {
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swap(bc.outorder[i], bc.outorder[j]);
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swap(sb1.next, sb2.next);
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if(sb1.next) sb1.next->prev = &sb1;
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if(sb2.next) sb2.next->prev = &sb2;
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}
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}
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if(1) {
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auto& sb1 = *bc.inorder[i];
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auto& sb2 = *bc.inorder[j];
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double swapcost = 0;
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if(sb1.prev) swapcost -= hdist(tC0(sb1.global), tC0(sb1.prev->global));
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if(sb2.prev) swapcost -= hdist(tC0(sb2.global), tC0(sb2.prev->global));
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if(sb1.prev) swapcost += hdist(tC0(sb2.global), tC0(sb1.prev->global));
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if(sb2.prev) swapcost += hdist(tC0(sb1.global), tC0(sb2.prev->global));
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if(swapcost < 0) {
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swap(bc.inorder[i], bc.inorder[j]);
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swap(sb1.prev, sb2.prev);
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if(sb1.prev) sb1.prev->next = &sb1;
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if(sb2.prev) sb2.prev->next = &sb2;
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}
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}
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auto& sbp = *bc.inorder[i];
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if(sbp.next && sbp.prev) {
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double p1 = sbp.next->phase;
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double p2 = sbp.prev->phase;
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double d = p2-p1;
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if(d<=.5) d+=1;
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if(d>=.5) d-=1;
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sbp.phase = p1 + d/2;
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if(sbp.phase >= 1) sbp.phase -= 1;
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if(sbp.phase < 0) sbp.phase += 1;
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}
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}
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for(auto bc: bcells)
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bc->c->listindex = bc->tmp;
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#endif
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}
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EX vector<cell*> arrowtraps;
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EX void drawArrowTraps() {
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for(cell *c: arrowtraps) {
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auto r = traplimits(c);
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try {
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transmatrix& t0 = gmatrix.at(r[0]);
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transmatrix& t1 = gmatrix.at(r[4]);
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ignore(t0);
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ignore(t1);
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#if CAP_QUEUE
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queueline(tC0(t0), tC0(t1), 0xFF0000FF, 4 + vid.linequality, PPR::ITEM);
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#endif
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#if CAP_SHAPES
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if((c->wparam & 7) == 3 && !shmup::on) {
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// queueline(t0 * randomPointIn(r[0]->type), t1 * randomPointIn(r[1]->type), 0xFFFFFFFF, 4, PPR::ITEM);
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int tt = int(fractick(64) * 401);
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for(int u=0; u<2; u++) {
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transmatrix& tu = u ? t0 : t1;
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transmatrix& tv = u ? t1 : t0;
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hyperpoint trel = inverse(tu) * tC0(tv);
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transmatrix tpartial = tu * rspintox(trel) * xpush(hdist0(trel) * tt / 401.0);
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tpartial = tpartial * ypush(.05);
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if(GDIM == 3) tpartial = tpartial * cspin(1, 2, M_PI/2);
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queuepoly(tpartial, cgi.shTrapArrow, 0xFFFFFFFF);
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}
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}
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#endif
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}
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catch(out_of_range&) {}
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}
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}
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auto ccm_blizzard = addHook(clearmemory, 0, [] () {
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arrowtraps.clear();
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blizzardcells.clear();
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bcells.clear();
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}) +
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+ addHook(hooks_gamedata, 0, [] (gamedata* gd) {
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gd->store(arrowtraps);
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gd->store(blizzardcells);
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gd->store(bcells);
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gd->store(blizzard_N);
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})
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+ addHook(hooks_removecells, 0, [] () {
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eliminate_if(arrowtraps, is_cell_removed);
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});
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}
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