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1 #include "waypoints.qh"
2
3 #include "cvars.qh"
4
5 #include "bot.qh"
6 #include "navigation.qh"
7
8 #include <common/state.qh>
9
10 #include "../../antilag.qh"
11
12 #include <common/constants.qh>
13 #include <common/net_linked.qh>
14
15 #include <lib/warpzone/common.qh>
16 #include <lib/warpzone/util_server.qh>
17
18 void waypoint_setupmodel(entity wp)
19 {
20         if (autocvar_g_waypointeditor)
21         {
22                 // TODO: add some sort of visible box in edit mode for box waypoints
23                 vector m1 = wp.mins;
24                 vector m2 = wp.maxs;
25                 setmodel(wp, MDL_WAYPOINT);
26                 setsize(wp, m1, m2);
27                 wp.effects = EF_LOWPRECISION;
28                 if (wp.wpflags & WAYPOINTFLAG_ITEM)
29                         wp.colormod = '1 0 0';
30                 else if (wp.wpflags & WAYPOINTFLAG_GENERATED)
31                         wp.colormod = '1 1 0';
32                 else
33                         wp.colormod = '1 1 1';
34         }
35         else
36                 wp.model = "";
37 }
38
39 // create a new spawnfunc_waypoint and automatically link it to other waypoints, and link
40 // them back to it as well
41 // (suitable for spawnfunc_waypoint editor)
42 entity waypoint_spawn(vector m1, vector m2, float f)
43 {
44         if(!(f & WAYPOINTFLAG_PERSONAL))
45         {
46                 IL_EACH(g_waypoints, boxesoverlap(m1, m2, it.absmin, it.absmax),
47                 {
48                         return it;
49                 });
50         }
51
52         entity w = new(waypoint);
53         IL_PUSH(g_waypoints, w);
54         w.dphitcontentsmask = DPCONTENTS_SOLID | DPCONTENTS_BODY | DPCONTENTS_PLAYERCLIP | DPCONTENTS_BOTCLIP;
55         w.wpflags = f;
56         w.solid = SOLID_TRIGGER;
57         setorigin(w, (m1 + m2) * 0.5);
58         setsize(w, m1 - w.origin, m2 - w.origin);
59         if (w.size)
60                 w.wpisbox = true;
61
62         if(!w.wpisbox)
63         {
64                 setsize(w, PL_MIN_CONST - '1 1 0', PL_MAX_CONST + '1 1 0');
65                 if(!move_out_of_solid(w))
66                 {
67                         if(!(f & WAYPOINTFLAG_GENERATED))
68                         {
69                                 LOG_TRACE("Killed a waypoint that was stuck in solid at ", vtos(w.origin));
70                                 delete(w);
71                                 return NULL;
72                         }
73                         else
74                         {
75                                 if(autocvar_developer)
76                                 {
77                                         LOG_INFO("A generated waypoint is stuck in solid at ", vtos(w.origin), "\n");
78                                         backtrace("Waypoint stuck");
79                                 }
80                         }
81                 }
82                 setsize(w, '0 0 0', '0 0 0');
83         }
84
85         waypoint_clearlinks(w);
86         //waypoint_schedulerelink(w);
87
88         waypoint_setupmodel(w);
89
90         return w;
91 }
92
93 // add a new link to the spawnfunc_waypoint, replacing the furthest link it already has
94 void waypoint_addlink(entity from, entity to)
95 {
96         float c;
97
98         if (from == to)
99                 return;
100         if (from.wpflags & WAYPOINTFLAG_NORELINK)
101                 return;
102
103         if (from.wp00 == to) return;if (from.wp01 == to) return;if (from.wp02 == to) return;if (from.wp03 == to) return;
104         if (from.wp04 == to) return;if (from.wp05 == to) return;if (from.wp06 == to) return;if (from.wp07 == to) return;
105         if (from.wp08 == to) return;if (from.wp09 == to) return;if (from.wp10 == to) return;if (from.wp11 == to) return;
106         if (from.wp12 == to) return;if (from.wp13 == to) return;if (from.wp14 == to) return;if (from.wp15 == to) return;
107         if (from.wp16 == to) return;if (from.wp17 == to) return;if (from.wp18 == to) return;if (from.wp19 == to) return;
108         if (from.wp20 == to) return;if (from.wp21 == to) return;if (from.wp22 == to) return;if (from.wp23 == to) return;
109         if (from.wp24 == to) return;if (from.wp25 == to) return;if (from.wp26 == to) return;if (from.wp27 == to) return;
110         if (from.wp28 == to) return;if (from.wp29 == to) return;if (from.wp30 == to) return;if (from.wp31 == to) return;
111
112         if (to.wpisbox || from.wpisbox)
113         {
114                 // if either is a box we have to find the nearest points on them to
115                 // calculate the distance properly
116                 vector v1, v2, m1, m2;
117                 v1 = from.origin;
118                 m1 = to.absmin;
119                 m2 = to.absmax;
120                 v1_x = bound(m1_x, v1_x, m2_x);
121                 v1_y = bound(m1_y, v1_y, m2_y);
122                 v1_z = bound(m1_z, v1_z, m2_z);
123                 v2 = to.origin;
124                 m1 = from.absmin;
125                 m2 = from.absmax;
126                 v2_x = bound(m1_x, v2_x, m2_x);
127                 v2_y = bound(m1_y, v2_y, m2_y);
128                 v2_z = bound(m1_z, v2_z, m2_z);
129                 v2 = to.origin;
130                 c = vlen(v2 - v1);
131         }
132         else
133                 c = vlen(to.origin - from.origin);
134
135         if (from.wp31mincost < c) return;
136         if (from.wp30mincost < c) {from.wp31 = to;from.wp31mincost = c;return;} from.wp31 = from.wp30;from.wp31mincost = from.wp30mincost;
137         if (from.wp29mincost < c) {from.wp30 = to;from.wp30mincost = c;return;} from.wp30 = from.wp29;from.wp30mincost = from.wp29mincost;
138         if (from.wp28mincost < c) {from.wp29 = to;from.wp29mincost = c;return;} from.wp29 = from.wp28;from.wp29mincost = from.wp28mincost;
139         if (from.wp27mincost < c) {from.wp28 = to;from.wp28mincost = c;return;} from.wp28 = from.wp27;from.wp28mincost = from.wp27mincost;
140         if (from.wp26mincost < c) {from.wp27 = to;from.wp27mincost = c;return;} from.wp27 = from.wp26;from.wp27mincost = from.wp26mincost;
141         if (from.wp25mincost < c) {from.wp26 = to;from.wp26mincost = c;return;} from.wp26 = from.wp25;from.wp26mincost = from.wp25mincost;
142         if (from.wp24mincost < c) {from.wp25 = to;from.wp25mincost = c;return;} from.wp25 = from.wp24;from.wp25mincost = from.wp24mincost;
143         if (from.wp23mincost < c) {from.wp24 = to;from.wp24mincost = c;return;} from.wp24 = from.wp23;from.wp24mincost = from.wp23mincost;
144         if (from.wp22mincost < c) {from.wp23 = to;from.wp23mincost = c;return;} from.wp23 = from.wp22;from.wp23mincost = from.wp22mincost;
145         if (from.wp21mincost < c) {from.wp22 = to;from.wp22mincost = c;return;} from.wp22 = from.wp21;from.wp22mincost = from.wp21mincost;
146         if (from.wp20mincost < c) {from.wp21 = to;from.wp21mincost = c;return;} from.wp21 = from.wp20;from.wp21mincost = from.wp20mincost;
147         if (from.wp19mincost < c) {from.wp20 = to;from.wp20mincost = c;return;} from.wp20 = from.wp19;from.wp20mincost = from.wp19mincost;
148         if (from.wp18mincost < c) {from.wp19 = to;from.wp19mincost = c;return;} from.wp19 = from.wp18;from.wp19mincost = from.wp18mincost;
149         if (from.wp17mincost < c) {from.wp18 = to;from.wp18mincost = c;return;} from.wp18 = from.wp17;from.wp18mincost = from.wp17mincost;
150         if (from.wp16mincost < c) {from.wp17 = to;from.wp17mincost = c;return;} from.wp17 = from.wp16;from.wp17mincost = from.wp16mincost;
151         if (from.wp15mincost < c) {from.wp16 = to;from.wp16mincost = c;return;} from.wp16 = from.wp15;from.wp16mincost = from.wp15mincost;
152         if (from.wp14mincost < c) {from.wp15 = to;from.wp15mincost = c;return;} from.wp15 = from.wp14;from.wp15mincost = from.wp14mincost;
153         if (from.wp13mincost < c) {from.wp14 = to;from.wp14mincost = c;return;} from.wp14 = from.wp13;from.wp14mincost = from.wp13mincost;
154         if (from.wp12mincost < c) {from.wp13 = to;from.wp13mincost = c;return;} from.wp13 = from.wp12;from.wp13mincost = from.wp12mincost;
155         if (from.wp11mincost < c) {from.wp12 = to;from.wp12mincost = c;return;} from.wp12 = from.wp11;from.wp12mincost = from.wp11mincost;
156         if (from.wp10mincost < c) {from.wp11 = to;from.wp11mincost = c;return;} from.wp11 = from.wp10;from.wp11mincost = from.wp10mincost;
157         if (from.wp09mincost < c) {from.wp10 = to;from.wp10mincost = c;return;} from.wp10 = from.wp09;from.wp10mincost = from.wp09mincost;
158         if (from.wp08mincost < c) {from.wp09 = to;from.wp09mincost = c;return;} from.wp09 = from.wp08;from.wp09mincost = from.wp08mincost;
159         if (from.wp07mincost < c) {from.wp08 = to;from.wp08mincost = c;return;} from.wp08 = from.wp07;from.wp08mincost = from.wp07mincost;
160         if (from.wp06mincost < c) {from.wp07 = to;from.wp07mincost = c;return;} from.wp07 = from.wp06;from.wp07mincost = from.wp06mincost;
161         if (from.wp05mincost < c) {from.wp06 = to;from.wp06mincost = c;return;} from.wp06 = from.wp05;from.wp06mincost = from.wp05mincost;
162         if (from.wp04mincost < c) {from.wp05 = to;from.wp05mincost = c;return;} from.wp05 = from.wp04;from.wp05mincost = from.wp04mincost;
163         if (from.wp03mincost < c) {from.wp04 = to;from.wp04mincost = c;return;} from.wp04 = from.wp03;from.wp04mincost = from.wp03mincost;
164         if (from.wp02mincost < c) {from.wp03 = to;from.wp03mincost = c;return;} from.wp03 = from.wp02;from.wp03mincost = from.wp02mincost;
165         if (from.wp01mincost < c) {from.wp02 = to;from.wp02mincost = c;return;} from.wp02 = from.wp01;from.wp02mincost = from.wp01mincost;
166         if (from.wp00mincost < c) {from.wp01 = to;from.wp01mincost = c;return;} from.wp01 = from.wp00;from.wp01mincost = from.wp00mincost;
167         from.wp00 = to;from.wp00mincost = c;return;
168 }
169
170 // relink this spawnfunc_waypoint
171 // (precompile a list of all reachable waypoints from this spawnfunc_waypoint)
172 // (SLOW!)
173 void waypoint_think(entity this)
174 {
175         vector sv, sm1, sm2, ev, em1, em2, dv;
176
177         bot_calculate_stepheightvec();
178
179         bot_navigation_movemode = ((autocvar_bot_navigation_ignoreplayers) ? MOVE_NOMONSTERS : MOVE_NORMAL);
180
181         //dprint("waypoint_think wpisbox = ", ftos(this.wpisbox), "\n");
182         sm1 = this.origin + this.mins;
183         sm2 = this.origin + this.maxs;
184         IL_EACH(g_waypoints, true,
185         {
186                 if (boxesoverlap(this.absmin, this.absmax, it.absmin, it.absmax))
187                 {
188                         waypoint_addlink(this, it);
189                         waypoint_addlink(it, this);
190                 }
191                 else
192                 {
193                         ++relink_total;
194                         if(!checkpvs(this.origin, it))
195                         {
196                                 ++relink_pvsculled;
197                                 continue;
198                         }
199                         sv = it.origin;
200                         sv.x = bound(sm1_x, sv.x, sm2_x);
201                         sv.y = bound(sm1_y, sv.y, sm2_y);
202                         sv.z = bound(sm1_z, sv.z, sm2_z);
203                         ev = this.origin;
204                         em1 = it.origin + it.mins;
205                         em2 = it.origin + it.maxs;
206                         ev.x = bound(em1_x, ev.x, em2_x);
207                         ev.y = bound(em1_y, ev.y, em2_y);
208                         ev.z = bound(em1_z, ev.z, em2_z);
209                         dv = ev - sv;
210                         dv.z = 0;
211                         if(vdist(dv, >=, 1050)) // max search distance in XY
212                         {
213                                 ++relink_lengthculled;
214                                 continue;
215                         }
216                         navigation_testtracewalk = 0;
217                         if (!this.wpisbox)
218                         {
219                                 tracebox(sv - PL_MIN_CONST.z * '0 0 1', PL_MIN_CONST, PL_MAX_CONST, sv, false, this);
220                                 if (!trace_startsolid)
221                                 {
222                                         //dprint("sv deviation", vtos(trace_endpos - sv), "\n");
223                                         sv = trace_endpos + '0 0 1';
224                                 }
225                         }
226                         if (!it.wpisbox)
227                         {
228                                 tracebox(ev - PL_MIN_CONST.z * '0 0 1', PL_MIN_CONST, PL_MAX_CONST, ev, false, it);
229                                 if (!trace_startsolid)
230                                 {
231                                         //dprint("ev deviation", vtos(trace_endpos - ev), "\n");
232                                         ev = trace_endpos + '0 0 1';
233                                 }
234                         }
235                         //traceline(this.origin, it.origin, false, NULL);
236                         //if (trace_fraction == 1)
237                         if (!this.wpisbox && tracewalk(this, sv, PL_MIN_CONST, PL_MAX_CONST, ev, MOVE_NOMONSTERS))
238                                 waypoint_addlink(this, it);
239                         else
240                                 relink_walkculled += 0.5;
241                         if (!it.wpisbox && tracewalk(it, ev, PL_MIN_CONST, PL_MAX_CONST, sv, MOVE_NOMONSTERS))
242                                 waypoint_addlink(it, this);
243                         else
244                                 relink_walkculled += 0.5;
245                 }
246         });
247         navigation_testtracewalk = 0;
248         this.wplinked = true;
249 }
250
251 void waypoint_clearlinks(entity wp)
252 {
253         // clear links to other waypoints
254         float f;
255         f = 10000000;
256         wp.wp00 = wp.wp01 = wp.wp02 = wp.wp03 = wp.wp04 = wp.wp05 = wp.wp06 = wp.wp07 = NULL;
257         wp.wp08 = wp.wp09 = wp.wp10 = wp.wp11 = wp.wp12 = wp.wp13 = wp.wp14 = wp.wp15 = NULL;
258         wp.wp16 = wp.wp17 = wp.wp18 = wp.wp19 = wp.wp20 = wp.wp21 = wp.wp22 = wp.wp23 = NULL;
259         wp.wp24 = wp.wp25 = wp.wp26 = wp.wp27 = wp.wp28 = wp.wp29 = wp.wp30 = wp.wp31 = NULL;
260
261         wp.wp00mincost = wp.wp01mincost = wp.wp02mincost = wp.wp03mincost = wp.wp04mincost = wp.wp05mincost = wp.wp06mincost = wp.wp07mincost = f;
262         wp.wp08mincost = wp.wp09mincost = wp.wp10mincost = wp.wp11mincost = wp.wp12mincost = wp.wp13mincost = wp.wp14mincost = wp.wp15mincost = f;
263         wp.wp16mincost = wp.wp17mincost = wp.wp18mincost = wp.wp19mincost = wp.wp20mincost = wp.wp21mincost = wp.wp22mincost = wp.wp23mincost = f;
264         wp.wp24mincost = wp.wp25mincost = wp.wp26mincost = wp.wp27mincost = wp.wp28mincost = wp.wp29mincost = wp.wp30mincost = wp.wp31mincost = f;
265
266         wp.wplinked = false;
267 }
268
269 // tell a spawnfunc_waypoint to relink
270 void waypoint_schedulerelink(entity wp)
271 {
272         if (wp == NULL)
273                 return;
274
275         waypoint_setupmodel(wp);
276         wp.wpisbox = vdist(wp.size, >, 0);
277         wp.enemy = NULL;
278         if (!(wp.wpflags & WAYPOINTFLAG_PERSONAL))
279                 wp.owner = NULL;
280         if (!(wp.wpflags & WAYPOINTFLAG_NORELINK))
281                 waypoint_clearlinks(wp);
282         // schedule an actual relink on next frame
283         setthink(wp, waypoint_think);
284         wp.nextthink = time;
285         wp.effects = EF_LOWPRECISION;
286 }
287
288 // spawnfunc_waypoint map entity
289 spawnfunc(waypoint)
290 {
291         IL_PUSH(g_waypoints, this);
292
293         setorigin(this, this.origin);
294         // schedule a relink after other waypoints have had a chance to spawn
295         waypoint_clearlinks(this);
296         //waypoint_schedulerelink(this);
297 }
298
299 // remove a spawnfunc_waypoint, and schedule all neighbors to relink
300 void waypoint_remove(entity e)
301 {
302         // tell all linked waypoints that they need to relink
303         waypoint_schedulerelink(e.wp00);
304         waypoint_schedulerelink(e.wp01);
305         waypoint_schedulerelink(e.wp02);
306         waypoint_schedulerelink(e.wp03);
307         waypoint_schedulerelink(e.wp04);
308         waypoint_schedulerelink(e.wp05);
309         waypoint_schedulerelink(e.wp06);
310         waypoint_schedulerelink(e.wp07);
311         waypoint_schedulerelink(e.wp08);
312         waypoint_schedulerelink(e.wp09);
313         waypoint_schedulerelink(e.wp10);
314         waypoint_schedulerelink(e.wp11);
315         waypoint_schedulerelink(e.wp12);
316         waypoint_schedulerelink(e.wp13);
317         waypoint_schedulerelink(e.wp14);
318         waypoint_schedulerelink(e.wp15);
319         waypoint_schedulerelink(e.wp16);
320         waypoint_schedulerelink(e.wp17);
321         waypoint_schedulerelink(e.wp18);
322         waypoint_schedulerelink(e.wp19);
323         waypoint_schedulerelink(e.wp20);
324         waypoint_schedulerelink(e.wp21);
325         waypoint_schedulerelink(e.wp22);
326         waypoint_schedulerelink(e.wp23);
327         waypoint_schedulerelink(e.wp24);
328         waypoint_schedulerelink(e.wp25);
329         waypoint_schedulerelink(e.wp26);
330         waypoint_schedulerelink(e.wp27);
331         waypoint_schedulerelink(e.wp28);
332         waypoint_schedulerelink(e.wp29);
333         waypoint_schedulerelink(e.wp30);
334         waypoint_schedulerelink(e.wp31);
335         // and now remove the spawnfunc_waypoint
336         delete(e);
337 }
338
339 // empties the map of waypoints
340 void waypoint_removeall()
341 {
342         IL_EACH(g_waypoints, true,
343         {
344                 delete(it);
345         });
346 }
347
348 // tell all waypoints to relink
349 // (is this useful at all?)
350 void waypoint_schedulerelinkall()
351 {
352         relink_total = relink_walkculled = relink_pvsculled = relink_lengthculled = 0;
353         IL_EACH(g_waypoints, true,
354         {
355                 waypoint_schedulerelink(it);
356         });
357 }
358
359 // Load waypoint links from file
360 float waypoint_load_links()
361 {
362         string filename, s;
363         float file, tokens, c = 0, found;
364         entity wp_from = NULL, wp_to;
365         vector wp_to_pos, wp_from_pos;
366         filename = strcat("maps/", mapname);
367         filename = strcat(filename, ".waypoints.cache");
368         file = fopen(filename, FILE_READ);
369
370         if (file < 0)
371         {
372                 LOG_TRACE("waypoint links load from ");
373                 LOG_TRACE(filename);
374                 LOG_TRACE(" failed");
375                 return false;
376         }
377
378         while ((s = fgets(file)))
379         {
380                 tokens = tokenizebyseparator(s, "*");
381
382                 if (tokens!=2)
383                 {
384                         // bad file format
385                         fclose(file);
386                         return false;
387                 }
388
389                 wp_from_pos     = stov(argv(0));
390                 wp_to_pos       = stov(argv(1));
391
392                 // Search "from" waypoint
393                 if(!wp_from || wp_from.origin!=wp_from_pos)
394                 {
395                         wp_from = findradius(wp_from_pos, 1);
396                         found = false;
397                         while(wp_from)
398                         {
399                                 if(vdist(wp_from.origin - wp_from_pos, <, 1))
400                                 if(wp_from.classname == "waypoint")
401                                 {
402                                         found = true;
403                                         break;
404                                 }
405                                 wp_from = wp_from.chain;
406                         }
407
408                         if(!found)
409                         {
410                                 LOG_TRACE("waypoint_load_links: couldn't find 'from' waypoint at ", vtos(wp_from.origin));
411                                 continue;
412                         }
413
414                 }
415
416                 // Search "to" waypoint
417                 wp_to = findradius(wp_to_pos, 1);
418                 found = false;
419                 while(wp_to)
420                 {
421                         if(vdist(wp_to.origin - wp_to_pos, <, 1))
422                         if(wp_to.classname == "waypoint")
423                         {
424                                 found = true;
425                                 break;
426                         }
427                         wp_to = wp_to.chain;
428                 }
429
430                 if(!found)
431                 {
432                         LOG_TRACE("waypoint_load_links: couldn't find 'to' waypoint at ", vtos(wp_to.origin));
433                         continue;
434                 }
435
436                 ++c;
437                 waypoint_addlink(wp_from, wp_to);
438         }
439
440         fclose(file);
441
442         LOG_TRACE("loaded ", ftos(c), " waypoint links from maps/", mapname, ".waypoints.cache");
443
444         botframe_cachedwaypointlinks = true;
445         return true;
446 }
447
448 void waypoint_load_links_hardwired()
449 {
450         string filename, s;
451         float file, tokens, c = 0, found;
452         entity wp_from = NULL, wp_to;
453         vector wp_to_pos, wp_from_pos;
454         filename = strcat("maps/", mapname);
455         filename = strcat(filename, ".waypoints.hardwired");
456         file = fopen(filename, FILE_READ);
457
458         botframe_loadedforcedlinks = true;
459
460         if (file < 0)
461         {
462                 LOG_TRACE("waypoint links load from ", filename, " failed");
463                 return;
464         }
465
466         while ((s = fgets(file)))
467         {
468                 if(substring(s, 0, 2)=="//")
469                         continue;
470
471                 if(substring(s, 0, 1)=="#")
472                         continue;
473
474                 tokens = tokenizebyseparator(s, "*");
475
476                 if (tokens!=2)
477                         continue;
478
479                 wp_from_pos     = stov(argv(0));
480                 wp_to_pos       = stov(argv(1));
481
482                 // Search "from" waypoint
483                 if(!wp_from || wp_from.origin!=wp_from_pos)
484                 {
485                         wp_from = findradius(wp_from_pos, 5);
486                         found = false;
487                         while(wp_from)
488                         {
489                                 if(vdist(wp_from.origin - wp_from_pos, <, 5))
490                                 if(wp_from.classname == "waypoint")
491                                 {
492                                         found = true;
493                                         break;
494                                 }
495                                 wp_from = wp_from.chain;
496                         }
497
498                         if(!found)
499                         {
500                                 LOG_INFO(strcat("NOTICE: Can not find waypoint at ", vtos(wp_from_pos), ". Path skipped\n"));
501                                 continue;
502                         }
503                 }
504
505                 // Search "to" waypoint
506                 wp_to = findradius(wp_to_pos, 5);
507                 found = false;
508                 while(wp_to)
509                 {
510                         if(vdist(wp_to.origin - wp_to_pos, <, 5))
511                         if(wp_to.classname == "waypoint")
512                         {
513                                 found = true;
514                                 break;
515                         }
516                         wp_to = wp_to.chain;
517                 }
518
519                 if(!found)
520                 {
521                         LOG_INFO(strcat("NOTICE: Can not find waypoint at ", vtos(wp_to_pos), ". Path skipped\n"));
522                         continue;
523                 }
524
525                 ++c;
526                 waypoint_addlink(wp_from, wp_to);
527                 wp_from.wphardwired = true;
528                 wp_to.wphardwired = true;
529         }
530
531         fclose(file);
532
533         LOG_TRACE("loaded ", ftos(c), " waypoint links from maps/", mapname, ".waypoints.hardwired");
534 }
535
536 entity waypoint_get_link(entity w, float i)
537 {
538         switch(i)
539         {
540                 case  0:return w.wp00;
541                 case  1:return w.wp01;
542                 case  2:return w.wp02;
543                 case  3:return w.wp03;
544                 case  4:return w.wp04;
545                 case  5:return w.wp05;
546                 case  6:return w.wp06;
547                 case  7:return w.wp07;
548                 case  8:return w.wp08;
549                 case  9:return w.wp09;
550                 case 10:return w.wp10;
551                 case 11:return w.wp11;
552                 case 12:return w.wp12;
553                 case 13:return w.wp13;
554                 case 14:return w.wp14;
555                 case 15:return w.wp15;
556                 case 16:return w.wp16;
557                 case 17:return w.wp17;
558                 case 18:return w.wp18;
559                 case 19:return w.wp19;
560                 case 20:return w.wp20;
561                 case 21:return w.wp21;
562                 case 22:return w.wp22;
563                 case 23:return w.wp23;
564                 case 24:return w.wp24;
565                 case 25:return w.wp25;
566                 case 26:return w.wp26;
567                 case 27:return w.wp27;
568                 case 28:return w.wp28;
569                 case 29:return w.wp29;
570                 case 30:return w.wp30;
571                 case 31:return w.wp31;
572                 default:return NULL;
573         }
574 }
575
576 // Save all waypoint links to a file
577 void waypoint_save_links()
578 {
579         string filename = sprintf("maps/%s.waypoints.cache", mapname);
580         int file = fopen(filename, FILE_WRITE);
581         if (file < 0)
582         {
583                 LOG_INFOF("waypoint link save to %s failed\n", filename);
584                 return;
585         }
586
587         int c = 0;
588         IL_EACH(g_waypoints, true,
589         {
590                 for(int j = 0; j < 32; ++j)
591                 {
592                         entity link = waypoint_get_link(it, j);
593                         if(link)
594                         {
595                                 string s = strcat(vtos(it.origin), "*", vtos(link.origin), "\n");
596                                 fputs(file, s);
597                                 ++c;
598                         }
599                 }
600         });
601         fclose(file);
602         botframe_cachedwaypointlinks = true;
603
604         LOG_INFOF("saved %d waypoint links to maps/%s.waypoints.cache\n", c, mapname);
605 }
606
607 // save waypoints to gamedir/data/maps/mapname.waypoints
608 void waypoint_saveall()
609 {
610         string filename = sprintf("maps/%s.waypoints", mapname);
611         int file = fopen(filename, FILE_WRITE);
612         if (file < 0)
613         {
614                 waypoint_save_links(); // save anyway?
615                 botframe_loadedforcedlinks = false;
616
617                 LOG_INFOF("waypoint links: save to %s failed\n", filename);
618                 return;
619         }
620
621         int c = 0;
622         IL_EACH(g_waypoints, true,
623         {
624                 if(it.wpflags & WAYPOINTFLAG_GENERATED)
625                         continue;
626
627                 string s;
628                 s = strcat(vtos(it.origin + it.mins), "\n");
629                 s = strcat(s, vtos(it.origin + it.maxs));
630                 s = strcat(s, "\n");
631                 s = strcat(s, ftos(it.wpflags));
632                 s = strcat(s, "\n");
633                 fputs(file, s);
634                 c++;
635         });
636         fclose(file);
637         waypoint_save_links();
638         botframe_loadedforcedlinks = false;
639
640         LOG_INFOF("saved %d waypoints to maps/%s.waypoints\n", c, mapname);
641 }
642
643 // load waypoints from file
644 float waypoint_loadall()
645 {
646         string filename, s;
647         float file, cwp, cwb, fl;
648         vector m1, m2;
649         cwp = 0;
650         cwb = 0;
651         filename = strcat("maps/", mapname);
652         filename = strcat(filename, ".waypoints");
653         file = fopen(filename, FILE_READ);
654         if (file >= 0)
655         {
656                 while ((s = fgets(file)))
657                 {
658                         m1 = stov(s);
659                         s = fgets(file);
660                         if (!s)
661                                 break;
662                         m2 = stov(s);
663                         s = fgets(file);
664                         if (!s)
665                                 break;
666                         fl = stof(s);
667                         waypoint_spawn(m1, m2, fl);
668                         if (m1 == m2)
669                                 cwp = cwp + 1;
670                         else
671                                 cwb = cwb + 1;
672                 }
673                 fclose(file);
674                 LOG_TRACE("loaded ", ftos(cwp), " waypoints and ", ftos(cwb), " wayboxes from maps/", mapname, ".waypoints");
675         }
676         else
677         {
678                 LOG_TRACE("waypoint load from ", filename, " failed");
679         }
680         return cwp + cwb;
681 }
682
683 vector waypoint_fixorigin(vector position)
684 {
685         tracebox(position + '0 0 1' * (1 - PL_MIN_CONST.z), PL_MIN_CONST, PL_MAX_CONST, position + '0 0 -512', MOVE_NOMONSTERS, NULL);
686         if(trace_fraction < 1)
687                 position = trace_endpos;
688         //traceline(position, position + '0 0 -512', MOVE_NOMONSTERS, NULL);
689         //print("position is ", ftos(trace_endpos_z - position_z), " above solid\n");
690         return position;
691 }
692
693 void waypoint_spawnforitem_force(entity e, vector org)
694 {
695         // Fix the waypoint altitude if necessary
696         org = waypoint_fixorigin(org);
697
698         // don't spawn an item spawnfunc_waypoint if it already exists
699         IL_EACH(g_waypoints, true,
700         {
701                 if(it.wpisbox)
702                 {
703                         if(boxesoverlap(org, org, it.absmin, it.absmax))
704                         {
705                                 e.nearestwaypoint = it;
706                                 return;
707                         }
708                 }
709                 else
710                 {
711                         if(vdist(it.origin - org, <, 16))
712                         {
713                                 e.nearestwaypoint = it;
714                                 return;
715                         }
716                 }
717         });
718
719         e.nearestwaypoint = waypoint_spawn(org, org, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_ITEM);
720 }
721
722 void waypoint_spawnforitem(entity e)
723 {
724         if(!bot_waypoints_for_items)
725                 return;
726
727         waypoint_spawnforitem_force(e, e.origin);
728 }
729
730 void waypoint_spawnforteleporter_boxes(entity e, vector org1, vector org2, vector destination1, vector destination2, float timetaken)
731 {
732         entity w;
733         entity dw;
734         w = waypoint_spawn(org1, org2, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_TELEPORT | WAYPOINTFLAG_NORELINK);
735         dw = waypoint_spawn(destination1, destination2, WAYPOINTFLAG_GENERATED);
736         // one way link to the destination
737         w.wp00 = dw;
738         w.wp00mincost = timetaken; // this is just for jump pads
739         // the teleporter's nearest spawnfunc_waypoint is this one
740         // (teleporters are not goals, so this is probably useless)
741         e.nearestwaypoint = w;
742         e.nearestwaypointtimeout = time + 1000000000;
743 }
744
745 void waypoint_spawnforteleporter_v(entity e, vector org, vector destination, float timetaken)
746 {
747         org = waypoint_fixorigin(org);
748         destination = waypoint_fixorigin(destination);
749         waypoint_spawnforteleporter_boxes(e, org, org, destination, destination, timetaken);
750 }
751
752 void waypoint_spawnforteleporter(entity e, vector destination, float timetaken)
753 {
754         destination = waypoint_fixorigin(destination);
755         waypoint_spawnforteleporter_boxes(e, e.absmin, e.absmax, destination, destination, timetaken);
756 }
757
758 entity waypoint_spawnpersonal(entity this, vector position)
759 {
760         entity w;
761
762         // drop the waypoint to a proper location:
763         //   first move it up by a player height
764         //   then move it down to hit the floor with player bbox size
765         position = waypoint_fixorigin(position);
766
767         w = waypoint_spawn(position, position, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_PERSONAL);
768         w.nearestwaypoint = NULL;
769         w.nearestwaypointtimeout = 0;
770         w.owner = this;
771
772         waypoint_schedulerelink(w);
773
774         return w;
775 }
776
777 void botframe_showwaypointlinks()
778 {
779         if (time < botframe_waypointeditorlightningtime)
780                 return;
781         botframe_waypointeditorlightningtime = time + 0.5;
782         FOREACH_CLIENT(IS_PLAYER(it) && !it.isbot,
783         {
784                 if(IS_ONGROUND(it) || it.waterlevel > WATERLEVEL_NONE)
785                 {
786                         //navigation_testtracewalk = true;
787                         entity head = navigation_findnearestwaypoint(it, false);
788                 //      print("currently selected WP is ", etos(head), "\n");
789                         //navigation_testtracewalk = false;
790                         if (head)
791                         {
792                                 entity w;
793                                 w = head     ;if (w) te_lightning2(NULL, w.origin, it.origin);
794                                 w = head.wp00;if (w) te_lightning2(NULL, w.origin, head.origin);
795                                 w = head.wp01;if (w) te_lightning2(NULL, w.origin, head.origin);
796                                 w = head.wp02;if (w) te_lightning2(NULL, w.origin, head.origin);
797                                 w = head.wp03;if (w) te_lightning2(NULL, w.origin, head.origin);
798                                 w = head.wp04;if (w) te_lightning2(NULL, w.origin, head.origin);
799                                 w = head.wp05;if (w) te_lightning2(NULL, w.origin, head.origin);
800                                 w = head.wp06;if (w) te_lightning2(NULL, w.origin, head.origin);
801                                 w = head.wp07;if (w) te_lightning2(NULL, w.origin, head.origin);
802                                 w = head.wp08;if (w) te_lightning2(NULL, w.origin, head.origin);
803                                 w = head.wp09;if (w) te_lightning2(NULL, w.origin, head.origin);
804                                 w = head.wp10;if (w) te_lightning2(NULL, w.origin, head.origin);
805                                 w = head.wp11;if (w) te_lightning2(NULL, w.origin, head.origin);
806                                 w = head.wp12;if (w) te_lightning2(NULL, w.origin, head.origin);
807                                 w = head.wp13;if (w) te_lightning2(NULL, w.origin, head.origin);
808                                 w = head.wp14;if (w) te_lightning2(NULL, w.origin, head.origin);
809                                 w = head.wp15;if (w) te_lightning2(NULL, w.origin, head.origin);
810                                 w = head.wp16;if (w) te_lightning2(NULL, w.origin, head.origin);
811                                 w = head.wp17;if (w) te_lightning2(NULL, w.origin, head.origin);
812                                 w = head.wp18;if (w) te_lightning2(NULL, w.origin, head.origin);
813                                 w = head.wp19;if (w) te_lightning2(NULL, w.origin, head.origin);
814                                 w = head.wp20;if (w) te_lightning2(NULL, w.origin, head.origin);
815                                 w = head.wp21;if (w) te_lightning2(NULL, w.origin, head.origin);
816                                 w = head.wp22;if (w) te_lightning2(NULL, w.origin, head.origin);
817                                 w = head.wp23;if (w) te_lightning2(NULL, w.origin, head.origin);
818                                 w = head.wp24;if (w) te_lightning2(NULL, w.origin, head.origin);
819                                 w = head.wp25;if (w) te_lightning2(NULL, w.origin, head.origin);
820                                 w = head.wp26;if (w) te_lightning2(NULL, w.origin, head.origin);
821                                 w = head.wp27;if (w) te_lightning2(NULL, w.origin, head.origin);
822                                 w = head.wp28;if (w) te_lightning2(NULL, w.origin, head.origin);
823                                 w = head.wp29;if (w) te_lightning2(NULL, w.origin, head.origin);
824                                 w = head.wp30;if (w) te_lightning2(NULL, w.origin, head.origin);
825                                 w = head.wp31;if (w) te_lightning2(NULL, w.origin, head.origin);
826                         }
827                 }
828         });
829 }
830
831 float botframe_autowaypoints_fixdown(vector v)
832 {
833         tracebox(v, PL_MIN_CONST, PL_MAX_CONST, v + '0 0 -64', MOVE_NOMONSTERS, NULL);
834         if(trace_fraction >= 1)
835                 return 0;
836         return 1;
837 }
838
839 float botframe_autowaypoints_createwp(vector v, entity p, .entity fld, float f)
840 {
841         IL_EACH(g_waypoints, boxesoverlap(v - '32 32 32', v + '32 32 32', it.absmin, it.absmax),
842         {
843                 // if a matching spawnfunc_waypoint already exists, don't add a duplicate
844                 return 0;
845         });
846
847         waypoint_schedulerelink(p.(fld) = waypoint_spawn(v, v, f));
848         return 1;
849 }
850
851 // return value:
852 //    1 = WP created
853 //    0 = no action needed
854 //   -1 = temp fail, try from world too
855 //   -2 = permanent fail, do not retry
856 float botframe_autowaypoints_fix_from(entity p, float walkfromwp, entity wp, .entity fld)
857 {
858         // make it possible to go from p to wp, if we can
859         // if wp is NULL, nearest is chosen
860
861         entity w;
862         vector porg;
863         float t, tmin, tmax;
864         vector o;
865         vector save;
866
867         if(!botframe_autowaypoints_fixdown(p.origin))
868                 return -2;
869         porg = trace_endpos;
870
871         if(wp)
872         {
873                 // if any WP w fulfills wp -> w -> porg and w is closer than wp, then switch from wp to w
874
875                 // if wp -> porg, then OK
876                 float maxdist;
877                 if(navigation_waypoint_will_link(wp.origin, porg, p, walkfromwp, 1050))
878                 {
879                         // we may find a better one
880                         maxdist = vlen(wp.origin - porg);
881                 }
882                 else
883                 {
884                         // accept any "good"
885                         maxdist = 2100;
886                 }
887
888                 float bestdist = maxdist;
889                 IL_EACH(g_waypoints, it != wp && !(it.wpflags & WAYPOINTFLAG_NORELINK),
890                 {
891                         float d = vlen(wp.origin - it.origin) + vlen(it.origin - porg);
892                         if(d < bestdist)
893                         if(navigation_waypoint_will_link(wp.origin, it.origin, p, walkfromwp, 1050))
894                         if(navigation_waypoint_will_link(it.origin, porg, p, walkfromwp, 1050))
895                         {
896                                 bestdist = d;
897                                 p.(fld) = it;
898                         }
899                 });
900                 if(bestdist < maxdist)
901                 {
902                         LOG_INFO("update chain to new nearest WP ", etos(p.(fld)), "\n");
903                         return 0;
904                 }
905
906                 if(bestdist < 2100)
907                 {
908                         // we know maxdist < 2100
909                         // so wp -> porg is still valid
910                         // all is good
911                         p.(fld) = wp;
912                         return 0;
913                 }
914
915                 // otherwise, no existing WP can fix our issues
916         }
917         else
918         {
919                 save = p.origin;
920                 setorigin(p, porg);
921                 w = navigation_findnearestwaypoint(p, walkfromwp);
922                 setorigin(p, save);
923                 if(w)
924                 {
925                         p.(fld) = w;
926                         return 0;
927                 }
928         }
929
930         tmin = 0;
931         tmax = 1;
932         for (;;)
933         {
934                 if(tmax - tmin < 0.001)
935                 {
936                         // did not get a good candidate
937                         return -1;
938                 }
939
940                 t = (tmin + tmax) * 0.5;
941                 o = antilag_takebackorigin(p, CS(p), time - t);
942                 if(!botframe_autowaypoints_fixdown(o))
943                         return -2;
944                 o = trace_endpos;
945
946                 if(wp)
947                 {
948                         if(!navigation_waypoint_will_link(wp.origin, o, p, walkfromwp, 1050))
949                         {
950                                 // we cannot walk from wp.origin to o
951                                 // get closer to tmax
952                                 tmin = t;
953                                 continue;
954                         }
955                 }
956                 else
957                 {
958                         save = p.origin;
959                         setorigin(p, o);
960                         w = navigation_findnearestwaypoint(p, walkfromwp);
961                         setorigin(p, save);
962                         if(!w)
963                         {
964                                 // we cannot walk from any WP to o
965                                 // get closer to tmax
966                                 tmin = t;
967                                 continue;
968                         }
969                 }
970
971                 // if we get here, o is valid regarding waypoints
972                 // check if o is connected right to the player
973                 // we break if it succeeds, as that means o is a good waypoint location
974                 if(navigation_waypoint_will_link(o, porg, p, walkfromwp, 1050))
975                         break;
976
977                 // o is no good, we need to get closer to the player
978                 tmax = t;
979         }
980
981         LOG_INFO("spawning a waypoint for connecting to ", etos(wp), "\n");
982         botframe_autowaypoints_createwp(o, p, fld, 0);
983         return 1;
984 }
985
986 // automatically create missing waypoints
987 .entity botframe_autowaypoints_lastwp0, botframe_autowaypoints_lastwp1;
988 void botframe_autowaypoints_fix(entity p, float walkfromwp, .entity fld)
989 {
990         float r = botframe_autowaypoints_fix_from(p, walkfromwp, p.(fld), fld);
991         if(r != -1)
992                 return;
993         r = botframe_autowaypoints_fix_from(p, walkfromwp, NULL, fld);
994         if(r != -1)
995                 return;
996
997         LOG_INFO("emergency: got no good nearby WP to build a link from, starting a new chain\n");
998         if(!botframe_autowaypoints_fixdown(p.origin))
999                 return; // shouldn't happen, caught above
1000         botframe_autowaypoints_createwp(trace_endpos, p, fld, WAYPOINTFLAG_PROTECTED);
1001 }
1002
1003 void botframe_deleteuselesswaypoints()
1004 {
1005         IL_EACH(g_items, it.bot_pickup,
1006         {
1007                 // NOTE: this protects waypoints if they're the ONLY nearest
1008                 // waypoint. That's the intention.
1009                 navigation_findnearestwaypoint(it, false);  // Walk TO item.
1010                 navigation_findnearestwaypoint(it, true);  // Walk FROM item.
1011         });
1012         IL_EACH(g_waypoints, true,
1013         {
1014                 it.wpflags |= WAYPOINTFLAG_DEAD_END;
1015                 it.wpflags &= ~WAYPOINTFLAG_USEFUL;
1016                 // WP is useful if:
1017                 if (it.wpflags & WAYPOINTFLAG_ITEM)
1018                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1019                 if (it.wpflags & WAYPOINTFLAG_TELEPORT)
1020                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1021                 if (it.wpflags & WAYPOINTFLAG_PROTECTED)
1022                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1023                 // b) WP is closest WP for an item/spawnpoint/other entity
1024                 //    This has been done above by protecting these WPs.
1025         });
1026         // c) There are w1, w, w2 so that w1 -> w, w -> w2 and not w1 -> w2.
1027         IL_EACH(g_waypoints, !(it.wpflags & WAYPOINTFLAG_PERSONAL),
1028         {
1029                 for (int m = 0; m < 32; ++m)
1030                 {
1031                         entity w = waypoint_get_link(it, m);
1032                         if (!w)
1033                                 break;
1034                         if (w.wpflags & WAYPOINTFLAG_PERSONAL)
1035                                 continue;
1036                         if (w.wpflags & WAYPOINTFLAG_USEFUL)
1037                                 continue;
1038                         for (int j = 0; j < 32; ++j)
1039                         {
1040                                 entity w2 = waypoint_get_link(w, j);
1041                                 if (!w2)
1042                                         break;
1043                                 if (it == w2)
1044                                         continue;
1045                                 if (w2.wpflags & WAYPOINTFLAG_PERSONAL)
1046                                         continue;
1047                                 // If we got here, it != w2 exist with it -> w
1048                                 // and w -> w2. That means the waypoint is not
1049                                 // a dead end.
1050                                 w.wpflags &= ~WAYPOINTFLAG_DEAD_END;
1051                                 for (int k = 0; k < 32; ++k)
1052                                 {
1053                                         if (waypoint_get_link(it, k) == w2)
1054                                                 continue;
1055                                         // IF WE GET HERE, w is proven useful
1056                                         // to get from it to w2!
1057                                         w.wpflags |= WAYPOINTFLAG_USEFUL;
1058                                         goto next;
1059                                 }
1060                         }
1061 LABEL(next)
1062                 }
1063         });
1064         // d) The waypoint is a dead end. Dead end waypoints must be kept as
1065         //     they are needed to complete routes while autowaypointing.
1066
1067         IL_EACH(g_waypoints, !(it.wpflags & (WAYPOINTFLAG_USEFUL | WAYPOINTFLAG_DEAD_END)),
1068         {
1069                 LOG_INFOF("Removed a waypoint at %v. Try again for more!\n", it.origin);
1070                 te_explosion(it.origin);
1071                 waypoint_remove(it);
1072                 break;
1073         });
1074
1075         IL_EACH(g_waypoints, true,
1076         {
1077                 it.wpflags &= ~(WAYPOINTFLAG_USEFUL | WAYPOINTFLAG_DEAD_END); // temp flag
1078         });
1079 }
1080
1081 void botframe_autowaypoints()
1082 {
1083         FOREACH_CLIENT(IS_PLAYER(it) && IS_REAL_CLIENT(it) && !IS_DEAD(it), LAMBDA(
1084                 // going back is broken, so only fix waypoints to walk TO the player
1085                 //botframe_autowaypoints_fix(p, false, botframe_autowaypoints_lastwp0);
1086                 botframe_autowaypoints_fix(it, true, botframe_autowaypoints_lastwp1);
1087                 //te_explosion(p.botframe_autowaypoints_lastwp0.origin);
1088         ));
1089
1090         if (autocvar_g_waypointeditor_auto >= 2) {
1091                 botframe_deleteuselesswaypoints();
1092         }
1093 }
1094