mirror of
https://github.com/zenorogue/hyperrogue.git
synced 2024-11-18 03:04:48 +00:00
657 lines
19 KiB
C++
657 lines
19 KiB
C++
#include "rogueviz.h"
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// This module allows creating complex animations with smooth camera movement
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// enable with -smoothcam option, or the new "smooth camera" option in the Animations dialog
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// it still seems a bit buggy
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// to add: insert positions? split/merge segments? improved join?
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namespace hr {
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using pcell = cell*;
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inline void hread(hstream& hs, transmatrix& h) { for(int i=0; i<MDIM; i++) hread(hs, h[i]); }
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inline void hwrite(hstream& hs, transmatrix h) { for(int i=0; i<MDIM; i++) hwrite(hs, h[i]); }
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inline void hwrite(hstream& hs, const pcell& c) {
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hs.write<int>(mapstream::cellids[c]);
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}
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inline void hread(hstream& hs, pcell& c) {
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int32_t at = hs.get<int>();
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c = mapstream::cellbyid[at];
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}
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namespace smoothcam {
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string smooth_camera_help =
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"This feature lets you create animations with complex but smooth camera movement.\n\n"
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"An animation is composed from a number of segments.\n\n"
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"In each segment, you can provide a number of positions, and times for them. "
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"For example, if you add a camera position A at time 0 and a camera position B at time 1, "
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"we will move linearly from A to B. Polynomial approximation is used inside a segment, "
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"while separate segments are animated independently.\n\n"
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"The 'interval' values are the interval between the current and next position. "
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"The total sum of 'interval' values is made equal to the 'animation period'. "
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"If you place two positions X and Y with interval 0 between them, X will be used"
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"as the actual position, while Y-X will be the first derivative. Thus, for example, "
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"placing two equal positions with interval 0 will force the camera to smoothly stop.";
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struct frame {
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string title;
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cell *where;
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transmatrix sView;
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transmatrix V;
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transmatrix ori;
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ld front_distance, up_distance;
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ld interval;
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};
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struct animation {
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cell *start_cell;
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transmatrix start;
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ld start_interval;
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vector<frame> frames;
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};
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map<cell*, map<hyperpoint, string> > labels;
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map<cell*, vector<vector<hyperpoint> > > traces;
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vector<animation> anims;
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transmatrix last_view, current_position, last_view_comp;
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cell *last_centerover;
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// during the animation, transform original coordinates to the current view coordinates
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transmatrix last_computed;
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ld last_time;
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void analyze_view_pre() {
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current_position = current_position * last_view * inverse(View);
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}
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void analyze_view_post() {
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last_view = View;
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}
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animation *current_segment;
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void start_segment() {
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anims.emplace_back();
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auto& anim = anims.back();
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anim.start_cell = centerover;
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anim.start = Id;
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last_view = Id;
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current_position = Id;
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current_segment = &anim;
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}
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/** does not work correctly -- should adjust to the current cell */
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void join_segment() {
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int n = anims.back().frames.size();
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if(n < 2) return;
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auto s1 = anims.back().frames[n-2];
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auto s2 = anims.back().frames[n-1];
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start_segment();
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auto& l = anims[anims.size()-2];
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anims.back().frames.push_back(l.frames[n-2]);
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anims.back().frames.push_back(l.frames[n-1]);
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anims.back().start_cell = l.start_cell;
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anims.back().start = l.start;
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anims.back().start_interval = 0;
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}
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map<cell*, int> indices;
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string gentitle() {
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return lalign(0, centerover, ":", indices[centerover]++);
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}
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bool animate_on;
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bool view_labels, view_trace;
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void edit_interval(ld& v) {
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dialog::add_action([&v] {
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dialog::editNumber(v, -10, 10, 1, 0, "interval", "");
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});
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}
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transmatrix try_harder_relative_matrix(cell *at, cell *from) {
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transmatrix U = Id;
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int d = celldistance(at, from);
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again:
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while(d > 0) {
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forCellIdEx(c1, i, at) {
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int d1 = celldistance(c1, from);
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if(d1 < d) {
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U = currentmap->iadj(at, i) * U;
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d = d1;
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at = c1;
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goto again;
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}
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}
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println(hlog, "still failed");
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return Id;
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}
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println(hlog, "got U = ", U);
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return U;
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}
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void edit_segment(int aid) {
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cmode = sm::PANNING;
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gamescreen();
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dialog::init(XLAT("animation segment"), 0xFFFFFFFF, 150, 0);
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dialog::addSelItem("interval", fts(anims[aid].start_interval), 'i');
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edit_interval(anims[aid].start_interval);
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dialog::addItem("delete", 'd');
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dialog::add_action([aid] {
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anims.erase(anims.begin()+aid);
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if(anims.empty()) start_segment();
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popScreen();
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});
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dialog::addItem("mirror", 'm');
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dialog::add_action([aid] {
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auto a = anims[aid];
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reverse(a.frames.begin(), a.frames.end());
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ld* last = &a.start_interval;
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for(auto& f: a.frames) { swap(*last, f.interval); last = &f.interval; }
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anims.push_back(std::move(a));
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popScreen();
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});
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dialog::addItem("copy before", 'c');
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dialog::add_action([aid] {
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auto a = anims[aid];
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anims.insert(anims.begin() + aid, a);
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current_segment = nullptr;
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popScreen();
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});
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dialog::addItem("swap with the last segment", 'x');
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dialog::add_action([aid] {
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swap(anims.back(), anims[aid]);
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current_segment = nullptr;
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popScreen();
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});
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dialog::addBack();
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dialog::display();
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}
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void generate_trace();
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void edit_step(animation& anim, int id) {
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cmode = 0;
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gamescreen();
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dialog::init(XLAT("animation step"), 0xFFFFFFFF, 150, 0);
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auto& f = anim.frames[id];
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dialog::addSelItem("title", f.title, 't');
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dialog::addSelItem("interval", fts(f.interval), 'i');
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edit_interval(f.interval);
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dialog::addSelItem("front distance", fts(f.front_distance), 'f');
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dialog::add_action([&f] {
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dialog::editNumber(f.front_distance, -5, 5, .1, 1, "front distance", "");
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});
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dialog::addSelItem("up distance", fts(f.up_distance), 'u');
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dialog::add_action([&f] {
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dialog::editNumber(f.up_distance, -5, 5, .1, 1, "up distance", "");
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});
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dialog::addItem("delete", 'd');
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dialog::add_action([&anim, id] {
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anim.frames.erase(anim.frames.begin()+id);
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popScreen();
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});
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if(&anim == current_segment) {
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dialog::addItem("change to current camera location", 'e');
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dialog::add_action([&f] {
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f.where = centerover;
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f.sView = View;
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f.V = current_position;
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popScreen();
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});
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}
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dialog::addItem("move the camera here", 'r');
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dialog::add_action([&f] {
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transmatrix Rel = calc_relative_matrix(centerover, f.where, inverse(View) * C0);
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println(hlog, "Rel = ", Rel);
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if(eqmatrix(Rel, Id) && centerover != f.where)
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Rel = try_harder_relative_matrix(centerover, f.where);
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View = f.sView * Rel;
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NLP = ortho_inverse(f.ori);
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playermoved = false;
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current_display->which_copy =
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nonisotropic ? gpushxto0(tC0(view_inverse(View))) :
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View;
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popScreen();
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});
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dialog::addItem("edit this segment and move the camera here", 'p');
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dialog::add_action([&anim, &f] {
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last_view = View = f.sView;
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NLP = ortho_inverse(f.ori);
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centerover = f.where;
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current_position = f.V;
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playermoved = false;
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current_display->which_copy =
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nonisotropic ? gpushxto0(tC0(view_inverse(View))) :
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View;
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current_segment = &anim;
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popScreen();
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});
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dialog::addItem("start a new segment from here", 'n');
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dialog::add_action([&f] {
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View = f.sView;
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centerover = f.where;
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playermoved = false;
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NLP = ortho_inverse(f.ori);
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current_display->which_copy =
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nonisotropic ? gpushxto0(tC0(view_inverse(View))) :
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View;
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start_segment();
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popScreen();
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});
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if(&anim == current_segment) {
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dialog::addItem("insert the current position before this", 'j');
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dialog::add_action([&anim, id] {
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anim.frames.insert(anim.frames.begin() + id, frame{gentitle(), centerover, View, current_position, ortho_inverse(NLP), 1, 1, 0});
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popScreen();
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});
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}
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dialog::addBack();
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dialog::display();
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}
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int last_segment;
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ld test_t = 0;
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ld c_front_dist = 0, c_up_dist = 0;
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void handle_animation(ld t);
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bool side = true;
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void snap_to_center() {
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cmode = side ? sm::SIDE : 0;
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gamescreen();
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draw_crosshair();
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dialog::init(XLAT("snap to center"), 0xFFFFFFFF, 150, 0);
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dialog::addItem("center on mouse", ' ');
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dialog::add_action([] {
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View = gpushxto0(unshift(mapeditor::mouse_snap())) * View;
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});
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dialog::addItem("mouse up", 'w');
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dialog::add_action([] {
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View = spin(90*degree) * spintox(unshift(mapeditor::mouse_snap())) * View;
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});
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dialog::addItem("mouse down", 's');
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dialog::add_action([] {
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View = spin(-90*degree) * spintox(unshift(mapeditor::mouse_snap())) * View;
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});
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dialog::addItem("mouse left", 'a');
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dialog::add_action([] {
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View = spin(180*degree) * spintox(unshift(mapeditor::mouse_snap())) * View;
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});
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dialog::addItem("mouse left", 'd');
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dialog::add_action([] {
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View = spin(0*degree) * spintox(unshift(mapeditor::mouse_snap())) * View;
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});
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dialog::addBack();
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dialog::display();
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keyhandler = [] (int sym, int uni) {
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handlePanning(sym, uni);
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dialog::handleNavigation(sym, uni);
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if(doexiton(sym, uni)) popScreen();
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};
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}
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void show() {
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cmode = side ? sm::SIDE : 0;
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gamescreen();
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draw_crosshair();
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dialog::init(XLAT("smooth camera"), 0xFFFFFFFF, 150, 0);
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char key = 'A';
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int aid = 0;
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labels.clear();
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for(auto& anim: anims) {
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if(key == 'Z'+1) key = 1;
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dialog::addSelItem("segment #" + its(aid) + (&anim == current_segment ? "*" : ""), fts(anim.start_interval), key++);
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dialog::add_action_push([aid] { edit_segment(aid); });
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int id = 0;
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for(auto& f: anim.frames) {
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labels[f.where][inverse(f.sView) * C0] = f.title;
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string dist;
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if(f.where != centerover)
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dist = its(celldistance(f.where, centerover)) + " cells";
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else {
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hyperpoint h1 = tC0(iso_inverse(View));
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hyperpoint h2 = tC0(iso_inverse(f.sView));
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ld d = hdist(h1, h2);
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if(d > 1e-3)
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dist = fts(d) + "au";
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else {
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transmatrix T = f.sView * iso_inverse(View);
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dist = fts(kz(acos_clamp(T[2][2]))) + "°/" + fts(kz(acos_clamp(T[1][1]))) + "°";
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}
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}
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if(key == 'Z'+1) key = 1;
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dialog::addSelItem(f.title + " [" + dist + "]", fts(f.interval), key++);
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dialog::add_action_push([&anim, id] { edit_step(anim, id); });
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id++;
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}
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aid++;
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}
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if(current_segment) {
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dialog::addItem("create a new position", 'a');
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dialog::add_action([] {
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current_segment->frames.push_back(frame{gentitle(), centerover, View, current_position, ortho_inverse(NLP), 1, 1, 0});
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});
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}
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dialog::addItem("create a new segment", 'b');
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dialog::add_action(start_segment);
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if(current_segment) {
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dialog::addItem("increase interval by 1", 's');
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dialog::add_key_action('s', [] {
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if(!current_segment->frames.empty())
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current_segment->frames.back().interval += 1;
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else
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current_segment->start_interval+=1;
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});
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}
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/* dialog::addItem("join a new segment", 'j');
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dialog::add_action(join_segment); */
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dialog::addBoolItem_action("view the labels", view_labels, 'l');
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dialog::addBoolItem("view the trace", view_trace, 't');
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dialog::add_action([] {
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view_trace = !view_trace;
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if(view_trace) generate_trace();
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});
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dialog::addBoolItem_action("side display", side, 'M');
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dialog::addItem("test the animation", 't');
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dialog::add_action([] {
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animate_on = false;
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last_time = HUGE_VAL;
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last_segment = -1;
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test_t = 0;
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dialog::editNumber(test_t, 0, 100, 0.1, 0, "enter the percentage", "");
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dialog::reaction = [] {
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handle_animation(test_t / 100);
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};
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dialog::extra_options = [] {
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dialog::addSelItem("current segment", its(last_segment), 'C');
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dialog::addSelItem("current front", fts(c_front_dist), 'F');
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dialog::addSelItem("current up", fts(c_up_dist), 'U');
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};
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});
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dialog::addBoolItem("view the crosshair", crosshair_size, 'x');
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dialog::add_action([] { crosshair_size = crosshair_size ? 0 : 10; });
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dialog::addBoolItem("run the animation", animate_on, 'r');
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dialog::add_action([] {
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animate_on = !animate_on;
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last_time = HUGE_VAL;
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});
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if(GDIM == 2) dialog::addItem("centering", 'X');
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dialog::add_action_push(snap_to_center);
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dialog::addHelp();
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dialog::add_action([] { gotoHelp(smooth_camera_help); });
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dialog::addBack();
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dialog::display();
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keyhandler = [] (int sym, int uni) {
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handlePanning(sym, uni);
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dialog::handleNavigation(sym, uni);
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if(doexiton(sym, uni)) popScreen();
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};
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}
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void prepare_for_interpolation(hyperpoint& h) {
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if(prod) {
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h[3] = zlevel(h);
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ld t = exp(h[3]);
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h[0] /= t;
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h[1] /= t;
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h[2] /= t;
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}
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}
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void after_interpolation(hyperpoint& h) {
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if(prod) {
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ld v = exp(h[3]) / sqrt(abs(intval(h, Hypc)));
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h[0] *= v;
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h[1] *= v;
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h[2] *= v;
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}
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else
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h = normalize(h);
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}
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void handle_animation(ld t) {
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ld total_total = 0;
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vector<ld> totals;
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for(auto& anim: anims) {
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ld total = anim.start_interval;
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for(auto& f: anim.frames)
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total += f.interval;
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totals.push_back(total);
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total_total += total;
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}
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if(total_total == 0) return;
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t = frac(t);
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t *= total_total;
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int segment = 0;
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while(totals[segment] < t && segment < isize(totals)-1) t -= totals[segment++];
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auto& anim = anims[segment];
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if(t < last_time || segment != last_segment) {
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last_time = 0;
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last_segment = segment;
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current_segment = &anim;
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View = anim.start;
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last_view_comp = View;
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centerover = anim.start_cell;
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current_position = Id;
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last_view = View;
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last_centerover = centerover;
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}
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ld total = anim.start_interval;
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vector<ld> times;
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for(auto& f: anim.frames) {
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times.push_back(total);
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total += f.interval;
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}
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hyperpoint pts[3];
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for(int j=0; j<3; j++) {
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for(int i=0; i<4; i++) {
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vector<ld> values;
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for(auto& f: anim.frames) {
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hyperpoint h;
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if(j == 0)
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h = tC0(f.V);
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if(j == 1) {
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h = tC0(parallel_transport(f.V, f.ori, ztangent(f.front_distance)));
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}
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if(j == 2) {
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h = tC0(parallel_transport(f.V, f.ori, ctangent(1, -f.up_distance)));
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}
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prepare_for_interpolation(h);
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values.push_back(h[i]);
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}
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int n = isize(values);
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for(int ss=1; ss<=n-1; ss++) {
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for(int a=0; a<n-ss; a++) {
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// combining [a..a+(ss-1)] and [a+1..a+ss]
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|
if(times[a+ss] == times[a])
|
|
values[a] = values[a] + (values[a+ss] - values[a]) * (t-times[a]);
|
|
else
|
|
values[a] = (values[a] * (times[a+ss] - t) + values[a+1] * (t - times[a])) / (times[a+ss] - times[a]);
|
|
}
|
|
values.pop_back();
|
|
}
|
|
|
|
pts[j][i] = values[0];
|
|
}
|
|
after_interpolation(pts[j]);
|
|
}
|
|
|
|
transmatrix V = View;
|
|
set_view(pts[0], pts[1], pts[2]);
|
|
c_front_dist = geo_dist(pts[0], pts[1]);
|
|
c_up_dist = geo_dist(pts[0], pts[2]);
|
|
|
|
transmatrix T = View * inverse(last_view_comp);
|
|
last_view_comp = View;
|
|
|
|
View = T * V;
|
|
fixmatrix(View);
|
|
|
|
if(invalid_matrix(View)) {
|
|
println(hlog, "invalid_matrix ", View);
|
|
println(hlog, pts[0]);
|
|
println(hlog, pts[1]);
|
|
println(hlog, pts[2]);
|
|
println(hlog, "t = ", t);
|
|
exit(1);
|
|
}
|
|
last_time = t;
|
|
}
|
|
|
|
void handle_animation0() {
|
|
if(!animate_on) return;
|
|
handle_animation(ticks / anims::period);
|
|
anims::moved();
|
|
println(hlog, "at ", cview());
|
|
}
|
|
|
|
void generate_trace() {
|
|
last_time = HUGE_VAL;
|
|
dynamicval<transmatrix> tN(NLP, NLP);
|
|
dynamicval<transmatrix> tV(View, View);
|
|
dynamicval<transmatrix> tC(current_display->which_copy, current_display->which_copy);
|
|
dynamicval<cell*> tc(centerover, centerover);
|
|
cell* cview = nullptr;
|
|
vector<hyperpoint> at;
|
|
traces.clear();
|
|
auto send = [&] {
|
|
if(cview && !at.empty()) traces[cview].push_back(at);
|
|
cview = centerover;
|
|
at.clear();
|
|
};
|
|
for(ld t=0; t<=1024; t ++) {
|
|
handle_animation(t / 1024);
|
|
if(cview != centerover) send();
|
|
at.push_back(inverse(View) * C0);
|
|
optimizeview();
|
|
if(cview != centerover) {
|
|
send();
|
|
at.push_back(inverse(View) * C0);
|
|
}
|
|
}
|
|
send();
|
|
}
|
|
|
|
void hwrite(hstream& hs, const animation& anim) {
|
|
hwrite(hs, anim.start_cell, anim.start, anim.start_interval, anim.frames);
|
|
}
|
|
|
|
void hread(hstream& hs, animation& anim) {
|
|
hread(hs, anim.start_cell, anim.start, anim.start_interval, anim.frames);
|
|
}
|
|
|
|
void hwrite(hstream& hs, const frame& frame) {
|
|
hwrite(hs, frame.title, frame.where, frame.sView, frame.V, frame.ori, frame.front_distance, frame.up_distance, frame.interval);
|
|
}
|
|
|
|
void hread(hstream& hs, frame& frame) {
|
|
hread(hs, frame.title, frame.where, frame.sView, frame.V, frame.ori, frame.front_distance, frame.up_distance, frame.interval);
|
|
}
|
|
|
|
bool draw_labels(cell *c, const shiftmatrix& V) {
|
|
if(view_labels) for(auto& p: labels[c])
|
|
queuestr(V * rgpushxto0(p.first), .1, p.second, 0xFFFFFFFF, 1);
|
|
if(view_trace)
|
|
for(auto& v: traces[c]) {
|
|
for(auto p: v)
|
|
curvepoint(p);
|
|
queuecurve(V, 0xFFD500FF, 0, PPR::FLOOR);
|
|
for(auto p: v)
|
|
curvepoint(p);
|
|
queuecurve(V, 0x80000080, 0, PPR::SUPERLINE);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool enabled;
|
|
|
|
void enable() {
|
|
if(enabled) return;
|
|
enabled = true;
|
|
rogueviz::cleanup.push_back([] { enabled = false; });
|
|
rogueviz::rv_hook(hooks_preoptimize, 75, analyze_view_pre);
|
|
rogueviz::rv_hook(hooks_postoptimize, 75, analyze_view_post);
|
|
rogueviz::rv_hook(anims::hooks_anim, 100, handle_animation0);
|
|
rogueviz::rv_hook(hooks_drawcell, 100, draw_labels);
|
|
rogueviz::rv_hook(hooks_o_key, 190, [] (o_funcs& v) { v.push_back(named_dialog("smoothcam", show)); });
|
|
rogueviz::rv_hook(mapstream::hooks_savemap, 100, [] (hstream& f) {
|
|
f.write<int>(17);
|
|
hwrite(f, anims);
|
|
});
|
|
anims.clear();
|
|
start_segment();
|
|
}
|
|
|
|
void enable_and_show() {
|
|
showstartmenu = false;
|
|
start_game();
|
|
enable();
|
|
pushScreen(show);
|
|
}
|
|
|
|
auto hooks = arg::add3("-smoothcam", enable_and_show)
|
|
+ arg::add3("-smoothcam-on", [] {
|
|
enable_and_show();
|
|
animate_on = true;
|
|
last_time = HUGE_VAL;
|
|
})
|
|
+ addHook(dialog::hooks_display_dialog, 100, [] () {
|
|
if(current_screen_cfunction() == anims::show) {
|
|
dialog::addItem(XLAT("smooth camera"), 'C');
|
|
dialog::add_action(enable_and_show);
|
|
}
|
|
}) +
|
|
+ addHook(mapstream::hooks_loadmap, 100, [] (hstream& f, int id) {
|
|
if(id == 17) {
|
|
enable();
|
|
hread(f, anims);
|
|
current_segment = &anims.back();
|
|
}
|
|
});
|
|
|
|
}}
|