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Bot waypoints: teach bots to jump gaps by implementing jump waypoints. Spawn it with...
[xonotic/xonotic-data.pk3dir.git] / qcsrc / server / bot / default / waypoints.qc
1 #include "waypoints.qh"
2
3 #include <server/defs.qh>
4 #include <server/miscfunctions.qh>
5 #include "cvars.qh"
6
7 #include "bot.qh"
8 #include "navigation.qh"
9
10 #include <common/state.qh>
11
12 #include "../../antilag.qh"
13
14 #include <common/constants.qh>
15 #include <common/debug.qh>
16 #include <common/mapobjects/trigger/jumppads.qh>
17 #include <common/net_linked.qh>
18 #include <common/physics/player.qh>
19
20 #include <lib/warpzone/common.qh>
21 #include <lib/warpzone/util_server.qh>
22
23 .entity spawnpointmodel;
24 void waypoint_unreachable(entity pl)
25 {
26         IL_EACH(g_waypoints, true,
27         {
28                 it.colormod = '0.5 0.5 0.5';
29                 it.effects &= ~(EF_NODEPTHTEST | EF_RED | EF_BLUE);
30         });
31
32         entity e2 = navigation_findnearestwaypoint(pl, false);
33         if(!e2)
34         {
35                 LOG_INFO("Can't find any waypoint nearby\n");
36                 return;
37         }
38
39         navigation_markroutes(pl, e2);
40
41         int j = 0;
42         int m = 0;
43         IL_EACH(g_waypoints, it.wpcost >= 10000000,
44         {
45                 LOG_INFO("unreachable: ", etos(it), " ", vtos(it.origin), "\n");
46                 it.colormod_z = 8;
47                 it.effects |= EF_NODEPTHTEST | EF_BLUE;
48                 j++;
49                 m++;
50         });
51         if (j) LOG_INFOF("%d waypoints cannot be reached from here in any way (marked with blue light)\n", j);
52         navigation_markroutes_inverted(e2);
53
54         j = 0;
55         IL_EACH(g_waypoints, it.wpcost >= 10000000,
56         {
57                 LOG_INFO("cannot reach me: ", etos(it), " ", vtos(it.origin), "\n");
58                 it.colormod_x = 8;
59                 if (!(it.effects & EF_NODEPTHTEST))  // not already reported before
60                         m++;
61                 it.effects |= EF_NODEPTHTEST | EF_RED;
62                 j++;
63         });
64         if (j) LOG_INFOF("%d waypoints cannot walk to here in any way (marked with red light)\n", j);
65         if (m) LOG_INFOF("%d waypoints have been marked total\n", m);
66
67         j = 0;
68         IL_EACH(g_spawnpoints, true,
69         {
70                 if (navigation_findnearestwaypoint(it, false))
71                 {
72                         if(it.spawnpointmodel)
73                         {
74                                 delete(it.spawnpointmodel);
75                                 it.spawnpointmodel = NULL;
76                         }
77                 }
78                 else
79                 {
80                         if(!it.spawnpointmodel)
81                         {
82                                 tracebox(it.origin, PL_MIN_CONST, PL_MAX_CONST, it.origin - '0 0 512', MOVE_NOMONSTERS, NULL);
83                                 entity e = new(spawnpointmodel);
84                                 vector org = trace_endpos + eZ;
85                                 setorigin(e, org);
86                                 e.solid = SOLID_TRIGGER;
87                                 it.spawnpointmodel = e;
88                         }
89                         LOG_INFO("spawn without waypoint: ", etos(it), " ", vtos(it.origin), "\n");
90                         it.spawnpointmodel.effects |= EF_NODEPTHTEST;
91                         _setmodel(it.spawnpointmodel, pl.model);
92                         it.spawnpointmodel.frame = pl.frame;
93                         it.spawnpointmodel.skin = pl.skin;
94                         it.spawnpointmodel.colormap = pl.colormap;
95                         it.spawnpointmodel.colormod = pl.colormod;
96                         it.spawnpointmodel.glowmod = pl.glowmod;
97                         setsize(it.spawnpointmodel, PL_MIN_CONST, PL_MAX_CONST);
98                         j++;
99                 }
100         });
101         if (j) LOG_INFOF("%d spawnpoints have no nearest waypoint (marked by player model)\n", j);
102
103         j = 0;
104         IL_EACH(g_items, true,
105         {
106                 it.effects &= ~(EF_NODEPTHTEST | EF_RED | EF_BLUE);
107                 it.colormod = '0.5 0.5 0.5';
108         });
109         IL_EACH(g_items, true,
110         {
111                 if (navigation_findnearestwaypoint(it, false))
112                         continue;
113                 LOG_INFO("item without waypoint: ", etos(it), " ", vtos(it.origin), "\n");
114                 it.effects |= EF_NODEPTHTEST | EF_RED;
115                 it.colormod_x = 8;
116                 j++;
117         });
118         if (j) LOG_INFOF("%d items have no nearest waypoint and cannot be walked away from (marked with red light)\n", j);
119
120         j = 0;
121         IL_EACH(g_items, true,
122         {
123                 if (navigation_findnearestwaypoint(it, true))
124                         continue;
125                 LOG_INFO("item without waypoint: ", etos(it), " ", vtos(it.origin), "\n");
126                 it.effects |= EF_NODEPTHTEST | EF_BLUE;
127                 it.colormod_z = 8;
128                 j++;
129         });
130         if (j) LOG_INFOF("%d items have no nearest waypoint and cannot be walked to (marked with blue light)\n", j);
131 }
132
133 void waypoint_getSymmetricalAxis_cmd(entity caller, bool save, int arg_idx)
134 {
135         vector v1 = stov(argv(arg_idx++));
136         vector v2 = stov(argv(arg_idx++));
137         vector mid = (v1 + v2) / 2;
138
139         float diffy = (v2.y - v1.y);
140         float diffx = (v2.x - v1.x);
141         if (v1.y == v2.y)
142                 diffy = 0.000001;
143         if (v1.x == v2.x)
144                 diffx = 0.000001;
145         float m = - diffx / diffy;
146         float q = - m * mid.x + mid.y;
147         if (fabs(m) <= 0.000001) m = 0;
148         if (fabs(q) <= 0.000001) q = 0;
149
150         string axis_str =  strcat(ftos(m), " ", ftos(q));
151         if (save)
152                 cvar_set("g_waypointeditor_symmetrical_axis", axis_str);
153         axis_str = strcat("\"", axis_str, "\"");
154         sprint(caller, strcat("Axis of symmetry based on input points: ", axis_str, "\n"));
155         if (save)
156                 sprint(caller, sprintf(" ^3saved to %s\n", "g_waypointeditor_symmetrical_axis"));
157         if (save)
158         {
159                 cvar_set("g_waypointeditor_symmetrical", "-2");
160                 sprint(caller, strcat("g_waypointeditor_symmetrical", " has been set to ",
161                         cvar_string("g_waypointeditor_symmetrical"), "\n"));
162         }
163 }
164
165 void waypoint_getSymmetricalOrigin_cmd(entity caller, bool save, int arg_idx)
166 {
167         vector org = '0 0 0';
168         int ctf_flags = 0;
169         for (int i = 0; i < 6; i++)
170         {
171                 if (argv(arg_idx + i) != "")
172                         ctf_flags++;
173         }
174         if (ctf_flags < 2)
175         {
176                 ctf_flags = 0;
177                 org = vec2(havocbot_middlepoint);
178                 if (argv(arg_idx) != "")
179                         sprint(caller, "WARNING: Ignoring single input point\n");
180                 if (havocbot_middlepoint_radius == 0)
181                 {
182                         sprint(caller, "Origin of symmetry can't be automatically determined\n");
183                         return;
184                 }
185         }
186         else
187         {
188                 vector v1, v2, v3, v4, v5, v6;
189                 for (int i = 1; i <= ctf_flags; i++)
190                 {
191                         if (i == 1) { v1 = stov(argv(arg_idx++)); org = v1 / ctf_flags; }
192                         else if (i == 2) { v2 = stov(argv(arg_idx++)); org += v2 / ctf_flags; }
193                         else if (i == 3) { v3 = stov(argv(arg_idx++)); org += v3 / ctf_flags; }
194                         else if (i == 4) { v4 = stov(argv(arg_idx++)); org += v4 / ctf_flags; }
195                         else if (i == 5) { v5 = stov(argv(arg_idx++)); org += v5 / ctf_flags; }
196                         else if (i == 6) { v6 = stov(argv(arg_idx++)); org += v6 / ctf_flags; }
197                 }
198         }
199
200         if (fabs(org.x) <= 0.000001) org.x = 0;
201         if (fabs(org.y) <= 0.000001) org.y = 0;
202         string org_str = strcat(ftos(org.x), " ", ftos(org.y));
203         if (save)
204         {
205                 cvar_set("g_waypointeditor_symmetrical_origin", org_str);
206                 cvar_set("g_waypointeditor_symmetrical_order", ftos(ctf_flags));
207         }
208         org_str = strcat("\"", org_str, "\"");
209
210         if (ctf_flags < 2)
211                 sprint(caller, strcat("Origin of symmetry based on flag positions: ", org_str, "\n"));
212         else
213                 sprint(caller, strcat("Origin of symmetry based on input points: ", org_str, "\n"));
214         if (save)
215                 sprint(caller, sprintf(" ^3saved to %s\n", "g_waypointeditor_symmetrical_origin"));
216
217         if (ctf_flags < 2)
218                 sprint(caller, "Order of symmetry: 0 (autodetected)\n");
219         else
220                 sprint(caller, strcat("Order of symmetry: ", ftos(ctf_flags), "\n"));
221         if (save)
222                 sprint(caller, sprintf(" ^3saved to %s\n", "g_waypointeditor_symmetrical_order"));
223
224         if (save)
225         {
226                 if (ctf_flags < 2)
227                         cvar_set("g_waypointeditor_symmetrical", "0");
228                 else
229                         cvar_set("g_waypointeditor_symmetrical", "-1");
230                 sprint(caller, strcat("g_waypointeditor_symmetrical", " has been set to ",
231                         cvar_string("g_waypointeditor_symmetrical"), "\n"));
232         }
233 }
234
235 vector waypoint_getSymmetricalPoint(vector org, int ctf_flags)
236 {
237         vector new_org = org;
238         if (fabs(autocvar_g_waypointeditor_symmetrical) == 1)
239         {
240                 vector map_center = havocbot_middlepoint;
241                 if (autocvar_g_waypointeditor_symmetrical == -1)
242                         map_center = autocvar_g_waypointeditor_symmetrical_origin;
243
244                 new_org = Rotate(org - map_center, 360 * DEG2RAD / ctf_flags) + map_center;
245         }
246         else if (fabs(autocvar_g_waypointeditor_symmetrical) == 2)
247         {
248                 float m = havocbot_symmetry_axis_m;
249                 float q = havocbot_symmetry_axis_q;
250                 if (autocvar_g_waypointeditor_symmetrical == -2)
251                 {
252                         m = autocvar_g_waypointeditor_symmetrical_axis.x;
253                         q = autocvar_g_waypointeditor_symmetrical_axis.y;
254                 }
255
256                 new_org.x = (1 / (1 + m*m)) * ((1 - m*m) * org.x + 2 * m * org.y - 2 * m * q);
257                 new_org.y = (1 / (1 + m*m)) * (2 * m * org.x + (m*m - 1) * org.y + 2 * q);
258         }
259         new_org.z = org.z;
260         return new_org;
261 }
262
263 void waypoint_setupmodel(entity wp)
264 {
265         if (autocvar_g_waypointeditor)
266         {
267                 // TODO: add some sort of visible box in edit mode for box waypoints
268                 vector m1 = wp.mins;
269                 vector m2 = wp.maxs;
270                 setmodel(wp, MDL_WAYPOINT);
271                 setsize(wp, m1, m2);
272                 wp.effects = EF_LOWPRECISION;
273                 if (wp.wpflags & WAYPOINTFLAG_ITEM)
274                         wp.colormod = '1 0 0';
275                 else if (wp.wpflags & WAYPOINTFLAG_GENERATED)
276                         wp.colormod = '1 1 0';
277                 else if (wp.wpflags & WAYPOINTFLAG_NORELINK)
278                         wp.colormod = '1 0.5 0'; // orange
279                 else if (wp.wphardwired)
280                         wp.colormod = '0.5 0 1'; // violet
281                 else
282                         wp.colormod = '1 1 1';
283         }
284         else
285                 wp.model = "";
286 }
287
288 entity waypoint_get(vector m1, vector m2)
289 {
290         if (m1 == m2)
291         {
292                 m1 -= '8 8 8';
293                 m2 += '8 8 8';
294         }
295         IL_EACH(g_waypoints, boxesoverlap(m1, m2, it.absmin, it.absmax), { return it; });
296
297         return NULL;
298 }
299
300 entity waypoint_spawn(vector m1, vector m2, float f)
301 {
302         if(!(f & (WAYPOINTFLAG_PERSONAL | WAYPOINTFLAG_GENERATED)) && m1 == m2)
303         {
304                 entity wp_found = waypoint_get(m1, m2);
305                 if (wp_found)
306                         return wp_found;
307         }
308         // spawn only one destination waypoint for teleports teleporting player to the exact same spot
309         // otherwise links loaded from file would be applied only to the first destination
310         // waypoint since link format doesn't specify waypoint entities but just positions
311         if((f & WAYPOINTFLAG_GENERATED) && !(f & (WAYPOINTFLAG_NORELINK | WAYPOINTFLAG_PERSONAL)) && m1 == m2)
312         {
313                 IL_EACH(g_waypoints, boxesoverlap(m1, m2, it.absmin, it.absmax),
314                 {
315                         return it;
316                 });
317         }
318
319         entity w = new(waypoint);
320         IL_PUSH(g_waypoints, w);
321         w.dphitcontentsmask = DPCONTENTS_SOLID | DPCONTENTS_BODY | DPCONTENTS_PLAYERCLIP | DPCONTENTS_BOTCLIP;
322         w.wpflags = f;
323         w.solid = SOLID_TRIGGER;
324         setorigin(w, (m1 + m2) * 0.5);
325         setsize(w, m1 - w.origin, m2 - w.origin);
326         if (w.size)
327                 w.wpisbox = true;
328
329         if(!w.wpisbox)
330         {
331                 setsize(w, PL_MIN_CONST - '1 1 0', PL_MAX_CONST + '1 1 0');
332                 if(!move_out_of_solid(w))
333                 {
334                         if(!(f & WAYPOINTFLAG_GENERATED))
335                         {
336                                 LOG_TRACE("Killed a waypoint that was stuck in solid at ", vtos(w.origin));
337                                 delete(w);
338                                 return NULL;
339                         }
340                         else
341                         {
342                                 if(autocvar_developer)
343                                 {
344                                         LOG_INFO("A generated waypoint is stuck in solid at ", vtos(w.origin));
345                                         backtrace("Waypoint stuck");
346                                 }
347                         }
348                 }
349                 setsize(w, '0 0 0', '0 0 0');
350         }
351
352         waypoint_clearlinks(w);
353         //waypoint_schedulerelink(w);
354
355         waypoint_setupmodel(w);
356
357         return w;
358 }
359
360 float trigger_push_get_push_time(entity this, vector endpos);
361 void waypoint_addlink_for_custom_jumppad(entity wp_from, entity wp_to)
362 {
363         entity jp = NULL;
364         IL_EACH(g_jumppads, boxesoverlap(wp_from.absmin, wp_from.absmax, it.absmin, it.absmax),
365         {
366                 jp = it;
367                 break;
368         });
369         if (!jp)
370                 return;
371
372         float cost = trigger_push_get_push_time(jp, wp_to.origin);
373         wp_from.wp00 = wp_to;
374         wp_from.wp00mincost = cost;
375         jp.nearestwaypoint = wp_from;
376         jp.nearestwaypointtimeout = -1;
377 }
378
379 bool start_wp_is_spawned;
380 vector start_wp_origin;
381
382 void waypoint_clear_start_wp(entity pl, bool warn)
383 {
384         start_wp_is_spawned = false;
385         start_wp_origin = '0 0 0';
386         pl.wp_locked = NULL;
387         if (warn)
388                 LOG_INFO("^xf80Start waypoint has been cleared.\n");
389 }
390
391 void waypoint_spawn_fromeditor(entity pl, bool at_crosshair, bool is_jump_wp)
392 {
393         entity e = NULL, jp = NULL;
394         vector org = pl.origin;
395         if (at_crosshair)
396         {
397                 crosshair_trace(pl);
398                 org = trace_endpos - eZ * PL_MIN_CONST.z;
399                 IL_EACH(g_jumppads, boxesoverlap(org + PL_MIN_CONST, org + PL_MAX_CONST, it.absmin, it.absmax),
400                 {
401                         jp = it;
402                         break;
403                 });
404         }
405         if (jp || is_jump_wp)
406         {
407                 if (start_wp_is_spawned)
408                         start_wp_is_spawned = false;
409                 LOG_INFO("^xf80Spawning start waypoint...\n");
410         }
411         int ctf_flags = havocbot_symmetry_origin_order;
412         bool sym = ((autocvar_g_waypointeditor_symmetrical > 0 && ctf_flags >= 2)
413                    || (autocvar_g_waypointeditor_symmetrical < 0));
414         if(autocvar_g_waypointeditor_symmetrical_order >= 2)
415                 ctf_flags = autocvar_g_waypointeditor_symmetrical_order;
416         if (sym && ctf_flags < 2)
417                 ctf_flags = 2;
418         int wp_num = ctf_flags;
419
420         if(!PHYS_INPUT_BUTTON_CROUCH(pl) && !at_crosshair && !is_jump_wp)
421         {
422                 // snap waypoint to item's origin if close enough
423                 IL_EACH(g_items, true,
424                 {
425                         vector item_org = (it.absmin + it.absmax) * 0.5;
426                         item_org.z = it.absmin.z - PL_MIN_CONST.z;
427                         if (vlen(item_org - org) < 20)
428                         {
429                                 org = item_org;
430                                 break;
431                         }
432                 });
433         }
434
435         vector start_org = '0 0 0';
436         if (start_wp_is_spawned)
437         {
438                 LOG_INFO("^xf80Spawning destination waypoint...\n");
439                 start_org = start_wp_origin;
440         }
441
442         // save org as it can be modified spawning symmetrycal waypoints
443         vector initial_origin = '0 0 0';
444         bool initial_origin_is_set = false;
445
446         LABEL(add_wp);
447
448         if (jp)
449         {
450                 e = NULL;
451                 IL_EACH(g_waypoints, it.wpflags & WAYPOINTFLAG_NORELINK
452                         && boxesoverlap(org + PL_MIN_CONST, org + PL_MAX_CONST, it.absmin, it.absmax),
453                 {
454                         e = it; break;
455                 });
456                 if (!e)
457                         e = waypoint_spawn(jp.absmin - PL_MAX_CONST + '1 1 1', jp.absmax - PL_MIN_CONST + '-1 -1 -1', WAYPOINTFLAG_TELEPORT | WAYPOINTFLAG_NORELINK);
458                 if (!pl.wp_locked)
459                         pl.wp_locked = e;
460         }
461         else if (is_jump_wp)
462         {
463                 entity wp_found = waypoint_get(org, org);
464                 if (wp_found && !(wp_found.wpflags & WAYPOINTFLAG_JUMP))
465                 {
466                         LOG_INFO("Error: can't spawn a jump waypoint over an existent waypoint of a different type\n");
467                         return;
468                 }
469                 e = waypoint_spawn(org, org, WAYPOINTFLAG_JUMP | WAYPOINTFLAG_NORELINK);
470                 if (!pl.wp_locked)
471                         pl.wp_locked = e;
472         }
473         else
474                 e = waypoint_spawn(org, org, 0);
475         if(!e)
476         {
477                 LOG_INFOF("Couldn't spawn waypoint at %v\n", org);
478                 if (start_wp_is_spawned)
479                         waypoint_clear_start_wp(pl, true);
480                 return;
481         }
482
483         if (!initial_origin_is_set)
484         {
485                 initial_origin = e.origin;
486                 initial_origin_is_set = true;
487         }
488
489         entity start_wp = NULL;
490         if (start_wp_is_spawned)
491         {
492                 IL_EACH(g_waypoints, it.wpflags & WAYPOINTFLAG_NORELINK
493                         && boxesoverlap(start_org, start_org, it.absmin, it.absmax),
494                 {
495                         start_wp = it; break;
496                 });
497                 if(!start_wp)
498                 {
499                         // should not happen
500                         LOG_INFOF("Couldn't find start waypoint at %v\n", start_org);
501                         waypoint_clear_start_wp(pl, true);
502                         return;
503                 }
504                 waypoint_addlink(start_wp, e);
505         }
506
507         if (!(jp || is_jump_wp))
508                 waypoint_schedulerelink(e);
509         bprint(strcat("Waypoint spawned at ", vtos(e.origin), "\n"));
510
511         if (start_wp_is_spawned)
512         {
513                 pl.wp_locked = NULL;
514                 waypoint_schedulerelink(start_wp);
515         }
516
517         if (sym)
518         {
519                 org = waypoint_getSymmetricalPoint(org, ctf_flags);
520                 if (jp)
521                 {
522                         IL_EACH(g_jumppads, boxesoverlap(org + PL_MIN_CONST, org + PL_MAX_CONST, it.absmin, it.absmax),
523                         {
524                                 jp = it; break;
525                         });
526                 }
527                 if (start_wp_is_spawned)
528                         start_org = waypoint_getSymmetricalPoint(start_org, ctf_flags);
529                 if (vdist(org - pl.origin, >, 32))
530                 {
531                         if(wp_num > 2)
532                                 wp_num--;
533                         else
534                                 sym = false;
535                         goto add_wp;
536                 }
537         }
538         if (jp || is_jump_wp)
539         {
540                 if (!start_wp_is_spawned)
541                 {
542                         // we've just created a custom jumppad waypoint
543                         // the next one created by the user will be the destination waypoint
544                         start_wp_is_spawned = true;
545                         start_wp_origin = initial_origin;
546                 }
547         }
548         else if (start_wp_is_spawned)
549         {
550                 waypoint_clear_start_wp(pl, false);
551         }
552 }
553
554 void waypoint_remove(entity wp)
555 {
556         IL_EACH(g_waypoints, it != wp,
557         {
558                 if (waypoint_islinked(it, wp))
559                         waypoint_removelink(it, wp);
560         });
561         delete(wp);
562 }
563
564 void waypoint_remove_fromeditor(entity pl)
565 {
566         entity e = navigation_findnearestwaypoint(pl, false);
567
568         int ctf_flags = havocbot_symmetry_origin_order;
569         bool sym = ((autocvar_g_waypointeditor_symmetrical > 0 && ctf_flags >= 2)
570                    || (autocvar_g_waypointeditor_symmetrical < 0));
571         if(autocvar_g_waypointeditor_symmetrical_order >= 2)
572                 ctf_flags = autocvar_g_waypointeditor_symmetrical_order;
573         if (sym && ctf_flags < 2)
574                 ctf_flags = 2;
575         int wp_num = ctf_flags;
576
577         LABEL(remove_wp);
578         if (!e) return;
579         if (e.wpflags & WAYPOINTFLAG_GENERATED)
580         {
581                 if (start_wp_is_spawned)
582                         waypoint_clear_start_wp(pl, true);
583                 return;
584         }
585
586         if (e.wphardwired)
587         {
588                 LOG_INFO("^1Warning: ^7Removal of hardwired waypoints is not allowed in the editor. Please remove links from/to this waypoint (", vtos(e.origin), ") by hand from maps/", mapname, ".waypoints.hardwired\n");
589                 return;
590         }
591
592         entity wp_sym = NULL;
593         if (sym)
594         {
595                 vector org = waypoint_getSymmetricalPoint(e.origin, ctf_flags);
596                 FOREACH_ENTITY_CLASS("waypoint", !(it.wpflags & WAYPOINTFLAG_GENERATED), {
597                         if(vdist(org - it.origin, <, 3))
598                         {
599                                 wp_sym = it;
600                                 break;
601                         }
602                 });
603         }
604
605         bprint(strcat("Waypoint removed at ", vtos(e.origin), "\n"));
606         waypoint_remove(e);
607
608         if (sym && wp_sym)
609         {
610                 e = wp_sym;
611                 if(wp_num > 2)
612                         wp_num--;
613                 else
614                         sym = false;
615                 goto remove_wp;
616         }
617
618         if (start_wp_is_spawned)
619                 waypoint_clear_start_wp(pl, true);
620 }
621
622 void waypoint_removelink(entity from, entity to)
623 {
624         if (from == to || (from.wpflags & WAYPOINTFLAG_NORELINK && !(from.wpflags & WAYPOINTFLAG_JUMP)))
625                 return;
626
627         entity fromwp31_prev = from.wp31;
628
629         switch (waypoint_getlinknum(from, to))
630         {
631                 // fallthrough all the way
632                 case  0: from.wp00 = from.wp01; from.wp00mincost = from.wp01mincost;
633                 case  1: from.wp01 = from.wp02; from.wp01mincost = from.wp02mincost;
634                 case  2: from.wp02 = from.wp03; from.wp02mincost = from.wp03mincost;
635                 case  3: from.wp03 = from.wp04; from.wp03mincost = from.wp04mincost;
636                 case  4: from.wp04 = from.wp05; from.wp04mincost = from.wp05mincost;
637                 case  5: from.wp05 = from.wp06; from.wp05mincost = from.wp06mincost;
638                 case  6: from.wp06 = from.wp07; from.wp06mincost = from.wp07mincost;
639                 case  7: from.wp07 = from.wp08; from.wp07mincost = from.wp08mincost;
640                 case  8: from.wp08 = from.wp09; from.wp08mincost = from.wp09mincost;
641                 case  9: from.wp09 = from.wp10; from.wp09mincost = from.wp10mincost;
642                 case 10: from.wp10 = from.wp11; from.wp10mincost = from.wp11mincost;
643                 case 11: from.wp11 = from.wp12; from.wp11mincost = from.wp12mincost;
644                 case 12: from.wp12 = from.wp13; from.wp12mincost = from.wp13mincost;
645                 case 13: from.wp13 = from.wp14; from.wp13mincost = from.wp14mincost;
646                 case 14: from.wp14 = from.wp15; from.wp14mincost = from.wp15mincost;
647                 case 15: from.wp15 = from.wp16; from.wp15mincost = from.wp16mincost;
648                 case 16: from.wp16 = from.wp17; from.wp16mincost = from.wp17mincost;
649                 case 17: from.wp17 = from.wp18; from.wp17mincost = from.wp18mincost;
650                 case 18: from.wp18 = from.wp19; from.wp18mincost = from.wp19mincost;
651                 case 19: from.wp19 = from.wp20; from.wp19mincost = from.wp20mincost;
652                 case 20: from.wp20 = from.wp21; from.wp20mincost = from.wp21mincost;
653                 case 21: from.wp21 = from.wp22; from.wp21mincost = from.wp22mincost;
654                 case 22: from.wp22 = from.wp23; from.wp22mincost = from.wp23mincost;
655                 case 23: from.wp23 = from.wp24; from.wp23mincost = from.wp24mincost;
656                 case 24: from.wp24 = from.wp25; from.wp24mincost = from.wp25mincost;
657                 case 25: from.wp25 = from.wp26; from.wp25mincost = from.wp26mincost;
658                 case 26: from.wp26 = from.wp27; from.wp26mincost = from.wp27mincost;
659                 case 27: from.wp27 = from.wp28; from.wp27mincost = from.wp28mincost;
660                 case 28: from.wp28 = from.wp29; from.wp28mincost = from.wp29mincost;
661                 case 29: from.wp29 = from.wp30; from.wp29mincost = from.wp30mincost;
662                 case 30: from.wp30 = from.wp31; from.wp30mincost = from.wp31mincost;
663                 case 31: from.wp31 = NULL; from.wp31mincost = 10000000;
664         }
665
666         if (fromwp31_prev && !from.wp31)
667                 waypoint_schedulerelink(from);
668 }
669
670 int waypoint_getlinknum(entity from, entity to)
671 {
672         if (from.wp00 == to) return  0; if (from.wp01 == to) return  1; if (from.wp02 == to) return  2; if (from.wp03 == to) return  3;
673         if (from.wp04 == to) return  4; if (from.wp05 == to) return  5; if (from.wp06 == to) return  6; if (from.wp07 == to) return  7;
674         if (from.wp08 == to) return  8; if (from.wp09 == to) return  9; if (from.wp10 == to) return 10; if (from.wp11 == to) return 11;
675         if (from.wp12 == to) return 12; if (from.wp13 == to) return 13; if (from.wp14 == to) return 14; if (from.wp15 == to) return 15;
676         if (from.wp16 == to) return 16; if (from.wp17 == to) return 17; if (from.wp18 == to) return 18; if (from.wp19 == to) return 19;
677         if (from.wp20 == to) return 20; if (from.wp21 == to) return 21; if (from.wp22 == to) return 22; if (from.wp23 == to) return 23;
678         if (from.wp24 == to) return 24; if (from.wp25 == to) return 25; if (from.wp26 == to) return 26; if (from.wp27 == to) return 27;
679         if (from.wp28 == to) return 28; if (from.wp29 == to) return 29; if (from.wp30 == to) return 30; if (from.wp31 == to) return 31;
680         return -1;
681 }
682
683 bool waypoint_islinked(entity from, entity to)
684 {
685         return (waypoint_getlinknum(from, to) >= 0);
686 }
687
688 void waypoint_updatecost_foralllinks()
689 {
690         IL_EACH(g_waypoints, !(it.wpflags & WAYPOINTFLAG_TELEPORT),
691         {
692                 if(it.wp00) it.wp00mincost = waypoint_getlinkcost(it, it.wp00);
693                 if(it.wp01) it.wp01mincost = waypoint_getlinkcost(it, it.wp01);
694                 if(it.wp02) it.wp02mincost = waypoint_getlinkcost(it, it.wp02);
695                 if(it.wp03) it.wp03mincost = waypoint_getlinkcost(it, it.wp03);
696                 if(it.wp04) it.wp04mincost = waypoint_getlinkcost(it, it.wp04);
697                 if(it.wp05) it.wp05mincost = waypoint_getlinkcost(it, it.wp05);
698                 if(it.wp06) it.wp06mincost = waypoint_getlinkcost(it, it.wp06);
699                 if(it.wp07) it.wp07mincost = waypoint_getlinkcost(it, it.wp07);
700                 if(it.wp08) it.wp08mincost = waypoint_getlinkcost(it, it.wp08);
701                 if(it.wp09) it.wp09mincost = waypoint_getlinkcost(it, it.wp09);
702                 if(it.wp10) it.wp10mincost = waypoint_getlinkcost(it, it.wp10);
703                 if(it.wp11) it.wp11mincost = waypoint_getlinkcost(it, it.wp11);
704                 if(it.wp12) it.wp12mincost = waypoint_getlinkcost(it, it.wp12);
705                 if(it.wp13) it.wp13mincost = waypoint_getlinkcost(it, it.wp13);
706                 if(it.wp14) it.wp14mincost = waypoint_getlinkcost(it, it.wp14);
707                 if(it.wp15) it.wp15mincost = waypoint_getlinkcost(it, it.wp15);
708                 if(it.wp16) it.wp16mincost = waypoint_getlinkcost(it, it.wp16);
709                 if(it.wp17) it.wp17mincost = waypoint_getlinkcost(it, it.wp17);
710                 if(it.wp18) it.wp18mincost = waypoint_getlinkcost(it, it.wp18);
711                 if(it.wp19) it.wp19mincost = waypoint_getlinkcost(it, it.wp19);
712                 if(it.wp20) it.wp20mincost = waypoint_getlinkcost(it, it.wp20);
713                 if(it.wp21) it.wp21mincost = waypoint_getlinkcost(it, it.wp21);
714                 if(it.wp22) it.wp22mincost = waypoint_getlinkcost(it, it.wp22);
715                 if(it.wp23) it.wp23mincost = waypoint_getlinkcost(it, it.wp23);
716                 if(it.wp24) it.wp24mincost = waypoint_getlinkcost(it, it.wp24);
717                 if(it.wp25) it.wp25mincost = waypoint_getlinkcost(it, it.wp25);
718                 if(it.wp26) it.wp26mincost = waypoint_getlinkcost(it, it.wp26);
719                 if(it.wp27) it.wp27mincost = waypoint_getlinkcost(it, it.wp27);
720                 if(it.wp28) it.wp28mincost = waypoint_getlinkcost(it, it.wp28);
721                 if(it.wp29) it.wp29mincost = waypoint_getlinkcost(it, it.wp29);
722                 if(it.wp30) it.wp30mincost = waypoint_getlinkcost(it, it.wp30);
723                 if(it.wp31) it.wp31mincost = waypoint_getlinkcost(it, it.wp31);
724         });
725 }
726
727 float waypoint_getlinearcost(float dist)
728 {
729         if(skill >= autocvar_bot_ai_bunnyhop_skilloffset)
730                 return dist / (autocvar_sv_maxspeed * 1.25);
731         return dist / autocvar_sv_maxspeed;
732 }
733 float waypoint_getlinearcost_underwater(float dist)
734 {
735         // NOTE: underwater speed factor is hardcoded in the engine too, see SV_WaterMove
736         return dist / (autocvar_sv_maxspeed * 0.7);
737 }
738
739 float waypoint_gettravelcost(vector from, vector to, entity from_ent, entity to_ent)
740 {
741         bool submerged_from = navigation_check_submerged_state(from_ent, from);
742         bool submerged_to = navigation_check_submerged_state(to_ent, to);
743
744         if (submerged_from && submerged_to)
745                 return waypoint_getlinearcost_underwater(vlen(to - from));
746
747         float c = waypoint_getlinearcost(vlen(to - from));
748
749         float height = from.z - to.z;
750         if(height > jumpheight_vec.z && autocvar_sv_gravity > 0)
751         {
752                 float height_cost;
753                 if (boolean(from_ent.wpflags & WAYPOINTFLAG_JUMP))
754                         height_cost = jumpheight_time + sqrt((height + jumpheight_vec.z) / (autocvar_sv_gravity / 2));
755                 else
756                         height_cost = sqrt(height / (autocvar_sv_gravity / 2));
757                 c = waypoint_getlinearcost(vlen(vec2(to - from))); // xy distance cost
758                 if(height_cost > c)
759                         c = height_cost;
760         }
761
762         if (submerged_from || submerged_to)
763                 return (c + waypoint_getlinearcost_underwater(vlen(to - from))) / 2;
764         return c;
765 }
766
767 float waypoint_getlinkcost(entity from, entity to)
768 {
769         vector v1 = from.origin;
770         vector v2 = to.origin;
771         if (from.wpisbox)
772         {
773                 vector m1 = from.absmin, m2 = from.absmax;
774                 v1.x = bound(m1.x, v2.x, m2.x);
775                 v1.y = bound(m1.y, v2.y, m2.y);
776                 v1.z = bound(m1.z, v2.z, m2.z);
777         }
778         if (to.wpisbox)
779         {
780                 vector m1 = to.absmin, m2 = to.absmax;
781                 v2.x = bound(m1.x, v1.x, m2.x);
782                 v2.y = bound(m1.y, v1.y, m2.y);
783                 v2.z = bound(m1.z, v1.z, m2.z);
784         }
785         return waypoint_gettravelcost(v1, v2, from, to);
786 }
787
788 // add a new link to the spawnfunc_waypoint, replacing the furthest link it already has
789 // if c == -1 automatically determine cost of the link
790 void waypoint_addlink_customcost(entity from, entity to, float c)
791 {
792         if (from == to || waypoint_islinked(from, to))
793                 return;
794         if (c == -1 && (from.wpflags & WAYPOINTFLAG_NORELINK) && !(from.wpflags & WAYPOINTFLAG_JUMP))
795                 return;
796
797         if(c == -1)
798                 c = waypoint_getlinkcost(from, to);
799
800         if (from.wp31mincost < c) return;
801         if (from.wp30mincost < c) {from.wp31 = to;from.wp31mincost = c;return;} from.wp31 = from.wp30;from.wp31mincost = from.wp30mincost;
802         if (from.wp29mincost < c) {from.wp30 = to;from.wp30mincost = c;return;} from.wp30 = from.wp29;from.wp30mincost = from.wp29mincost;
803         if (from.wp28mincost < c) {from.wp29 = to;from.wp29mincost = c;return;} from.wp29 = from.wp28;from.wp29mincost = from.wp28mincost;
804         if (from.wp27mincost < c) {from.wp28 = to;from.wp28mincost = c;return;} from.wp28 = from.wp27;from.wp28mincost = from.wp27mincost;
805         if (from.wp26mincost < c) {from.wp27 = to;from.wp27mincost = c;return;} from.wp27 = from.wp26;from.wp27mincost = from.wp26mincost;
806         if (from.wp25mincost < c) {from.wp26 = to;from.wp26mincost = c;return;} from.wp26 = from.wp25;from.wp26mincost = from.wp25mincost;
807         if (from.wp24mincost < c) {from.wp25 = to;from.wp25mincost = c;return;} from.wp25 = from.wp24;from.wp25mincost = from.wp24mincost;
808         if (from.wp23mincost < c) {from.wp24 = to;from.wp24mincost = c;return;} from.wp24 = from.wp23;from.wp24mincost = from.wp23mincost;
809         if (from.wp22mincost < c) {from.wp23 = to;from.wp23mincost = c;return;} from.wp23 = from.wp22;from.wp23mincost = from.wp22mincost;
810         if (from.wp21mincost < c) {from.wp22 = to;from.wp22mincost = c;return;} from.wp22 = from.wp21;from.wp22mincost = from.wp21mincost;
811         if (from.wp20mincost < c) {from.wp21 = to;from.wp21mincost = c;return;} from.wp21 = from.wp20;from.wp21mincost = from.wp20mincost;
812         if (from.wp19mincost < c) {from.wp20 = to;from.wp20mincost = c;return;} from.wp20 = from.wp19;from.wp20mincost = from.wp19mincost;
813         if (from.wp18mincost < c) {from.wp19 = to;from.wp19mincost = c;return;} from.wp19 = from.wp18;from.wp19mincost = from.wp18mincost;
814         if (from.wp17mincost < c) {from.wp18 = to;from.wp18mincost = c;return;} from.wp18 = from.wp17;from.wp18mincost = from.wp17mincost;
815         if (from.wp16mincost < c) {from.wp17 = to;from.wp17mincost = c;return;} from.wp17 = from.wp16;from.wp17mincost = from.wp16mincost;
816         if (from.wp15mincost < c) {from.wp16 = to;from.wp16mincost = c;return;} from.wp16 = from.wp15;from.wp16mincost = from.wp15mincost;
817         if (from.wp14mincost < c) {from.wp15 = to;from.wp15mincost = c;return;} from.wp15 = from.wp14;from.wp15mincost = from.wp14mincost;
818         if (from.wp13mincost < c) {from.wp14 = to;from.wp14mincost = c;return;} from.wp14 = from.wp13;from.wp14mincost = from.wp13mincost;
819         if (from.wp12mincost < c) {from.wp13 = to;from.wp13mincost = c;return;} from.wp13 = from.wp12;from.wp13mincost = from.wp12mincost;
820         if (from.wp11mincost < c) {from.wp12 = to;from.wp12mincost = c;return;} from.wp12 = from.wp11;from.wp12mincost = from.wp11mincost;
821         if (from.wp10mincost < c) {from.wp11 = to;from.wp11mincost = c;return;} from.wp11 = from.wp10;from.wp11mincost = from.wp10mincost;
822         if (from.wp09mincost < c) {from.wp10 = to;from.wp10mincost = c;return;} from.wp10 = from.wp09;from.wp10mincost = from.wp09mincost;
823         if (from.wp08mincost < c) {from.wp09 = to;from.wp09mincost = c;return;} from.wp09 = from.wp08;from.wp09mincost = from.wp08mincost;
824         if (from.wp07mincost < c) {from.wp08 = to;from.wp08mincost = c;return;} from.wp08 = from.wp07;from.wp08mincost = from.wp07mincost;
825         if (from.wp06mincost < c) {from.wp07 = to;from.wp07mincost = c;return;} from.wp07 = from.wp06;from.wp07mincost = from.wp06mincost;
826         if (from.wp05mincost < c) {from.wp06 = to;from.wp06mincost = c;return;} from.wp06 = from.wp05;from.wp06mincost = from.wp05mincost;
827         if (from.wp04mincost < c) {from.wp05 = to;from.wp05mincost = c;return;} from.wp05 = from.wp04;from.wp05mincost = from.wp04mincost;
828         if (from.wp03mincost < c) {from.wp04 = to;from.wp04mincost = c;return;} from.wp04 = from.wp03;from.wp04mincost = from.wp03mincost;
829         if (from.wp02mincost < c) {from.wp03 = to;from.wp03mincost = c;return;} from.wp03 = from.wp02;from.wp03mincost = from.wp02mincost;
830         if (from.wp01mincost < c) {from.wp02 = to;from.wp02mincost = c;return;} from.wp02 = from.wp01;from.wp02mincost = from.wp01mincost;
831         if (from.wp00mincost < c) {from.wp01 = to;from.wp01mincost = c;return;} from.wp01 = from.wp00;from.wp01mincost = from.wp00mincost;
832         from.wp00 = to;from.wp00mincost = c;return;
833 }
834
835 void waypoint_addlink(entity from, entity to)
836 {
837         if ((from.wpflags & WAYPOINTFLAG_NORELINK) && !(from.wpflags & (WAYPOINTFLAG_JUMP)))
838                 waypoint_addlink_for_custom_jumppad(from, to);
839         else
840                 waypoint_addlink_customcost(from, to, -1);
841 }
842
843 // relink this spawnfunc_waypoint
844 // (precompile a list of all reachable waypoints from this spawnfunc_waypoint)
845 // (SLOW!)
846 void waypoint_think(entity this)
847 {
848         vector sv = '0 0 0', sv2 = '0 0 0', ev = '0 0 0', ev2 = '0 0 0', dv;
849         float sv2_height = 0, ev2_height = 0;
850
851         bot_calculate_stepheightvec();
852
853         int dphitcontentsmask_save = this.dphitcontentsmask;
854         this.dphitcontentsmask = DPCONTENTS_SOLID | DPCONTENTS_BODY | DPCONTENTS_PLAYERCLIP | DPCONTENTS_BOTCLIP;
855
856         bot_navigation_movemode = ((autocvar_bot_navigation_ignoreplayers) ? MOVE_NOMONSTERS : MOVE_NORMAL);
857
858         //dprint("waypoint_think wpisbox = ", ftos(this.wpisbox), "\n");
859         IL_EACH(g_waypoints, this != it,
860         {
861                 if (boxesoverlap(this.absmin, this.absmax, it.absmin, it.absmax))
862                 {
863                         waypoint_addlink(this, it);
864                         waypoint_addlink(it, this);
865                 }
866                 else
867                 {
868                         ++relink_total;
869                         if(!checkpvs(this.origin, it))
870                         {
871                                 ++relink_pvsculled;
872                                 continue;
873                         }
874
875                         sv = set_tracewalk_dest_2(this, it.origin);
876                         sv2 = tracewalk_dest;
877                         sv2_height = tracewalk_dest_height;
878                         ev = set_tracewalk_dest_2(it, this.origin);
879                         ev2 = tracewalk_dest;
880                         ev2_height = tracewalk_dest_height;
881
882                         dv = ev - sv;
883                         dv.z = 0;
884                         if(vdist(dv, >=, 1050)) // max search distance in XY
885                         {
886                                 ++relink_lengthculled;
887                                 continue;
888                         }
889
890                         navigation_testtracewalk = 0;
891
892                         //traceline(this.origin, it.origin, false, NULL);
893                         //if (trace_fraction == 1)
894                         if (this.wpisbox || this.wpflags & WAYPOINTFLAG_JUMP)
895                                 relink_walkculled += 0.5;
896                         else
897                         {
898                                 if (tracewalk(this, sv, PL_MIN_CONST, PL_MAX_CONST, ev2, ev2_height, MOVE_NOMONSTERS))
899                                         waypoint_addlink(this, it);
900                                 else
901                                         relink_walkculled += 0.5;
902                         }
903
904                         if (it.wpisbox || it.wpflags & WAYPOINTFLAG_JUMP)
905                                 relink_walkculled += 0.5;
906                         else
907                         {
908                                 if (tracewalk(this, ev, PL_MIN_CONST, PL_MAX_CONST, sv2, sv2_height, MOVE_NOMONSTERS))
909                                         waypoint_addlink(it, this);
910                                 else
911                                         relink_walkculled += 0.5;
912                         }
913                 }
914         });
915         navigation_testtracewalk = 0;
916         this.wplinked = true;
917         this.dphitcontentsmask = dphitcontentsmask_save;
918
919         setthink(this, func_null);
920         this.nextthink = 0;
921 }
922
923 void waypoint_clearlinks(entity wp)
924 {
925         // clear links to other waypoints
926         float f = 10000000;
927         wp.wp00 = wp.wp01 = wp.wp02 = wp.wp03 = wp.wp04 = wp.wp05 = wp.wp06 = wp.wp07 = NULL;
928         wp.wp08 = wp.wp09 = wp.wp10 = wp.wp11 = wp.wp12 = wp.wp13 = wp.wp14 = wp.wp15 = NULL;
929         wp.wp16 = wp.wp17 = wp.wp18 = wp.wp19 = wp.wp20 = wp.wp21 = wp.wp22 = wp.wp23 = NULL;
930         wp.wp24 = wp.wp25 = wp.wp26 = wp.wp27 = wp.wp28 = wp.wp29 = wp.wp30 = wp.wp31 = NULL;
931
932         wp.wp00mincost = wp.wp01mincost = wp.wp02mincost = wp.wp03mincost = wp.wp04mincost = wp.wp05mincost = wp.wp06mincost = wp.wp07mincost = f;
933         wp.wp08mincost = wp.wp09mincost = wp.wp10mincost = wp.wp11mincost = wp.wp12mincost = wp.wp13mincost = wp.wp14mincost = wp.wp15mincost = f;
934         wp.wp16mincost = wp.wp17mincost = wp.wp18mincost = wp.wp19mincost = wp.wp20mincost = wp.wp21mincost = wp.wp22mincost = wp.wp23mincost = f;
935         wp.wp24mincost = wp.wp25mincost = wp.wp26mincost = wp.wp27mincost = wp.wp28mincost = wp.wp29mincost = wp.wp30mincost = wp.wp31mincost = f;
936
937         wp.wplinked = false;
938 }
939
940 // tell a spawnfunc_waypoint to relink
941 void waypoint_schedulerelink(entity wp)
942 {
943         if (wp == NULL)
944                 return;
945
946         waypoint_setupmodel(wp);
947         wp.wpisbox = vdist(wp.size, >, 0);
948         wp.enemy = NULL;
949         if (!(wp.wpflags & WAYPOINTFLAG_PERSONAL))
950                 wp.owner = NULL;
951         if (!(wp.wpflags & WAYPOINTFLAG_NORELINK))
952                 waypoint_clearlinks(wp);
953         // schedule an actual relink on next frame
954         setthink(wp, waypoint_think);
955         wp.nextthink = time;
956         wp.effects = EF_LOWPRECISION;
957 }
958
959 // spawnfunc_waypoint map entity
960 spawnfunc(waypoint)
961 {
962         IL_PUSH(g_waypoints, this);
963
964         setorigin(this, this.origin);
965         // schedule a relink after other waypoints have had a chance to spawn
966         waypoint_clearlinks(this);
967         //waypoint_schedulerelink(this);
968 }
969
970 // tell all waypoints to relink
971 // actually this is useful only to update relink_* stats
972 void waypoint_schedulerelinkall()
973 {
974         relink_total = relink_walkculled = relink_pvsculled = relink_lengthculled = 0;
975         IL_EACH(g_waypoints, true,
976         {
977                 waypoint_schedulerelink(it);
978         });
979         waypoint_load_links_hardwired();
980 }
981
982 #define GET_GAMETYPE_EXTENSION() ((g_race) ? ".race" : "")
983
984 // Load waypoint links from file
985 bool waypoint_load_links()
986 {
987         string s;
988         float file, tokens, c = 0, found;
989         entity wp_from = NULL, wp_to;
990         vector wp_to_pos, wp_from_pos;
991
992         string gt_ext = GET_GAMETYPE_EXTENSION();
993
994         string filename = sprintf("maps/%s.waypoints.cache", strcat(mapname, gt_ext));
995         file = fopen(filename, FILE_READ);
996
997         if (gt_ext != "" && file < 0)
998         {
999                 // if race waypoint file doesn't exist load the default one
1000                 filename = sprintf("maps/%s.waypoints.cache", mapname);
1001                 file = fopen(filename, FILE_READ);
1002         }
1003
1004         if (file < 0)
1005         {
1006                 LOG_TRACE("waypoint links load from ", filename, " failed");
1007                 waypoint_schedulerelinkall();
1008                 return false;
1009         }
1010
1011         bool parse_comments = true;
1012         float ver = 0;
1013         string links_time = string_null;
1014
1015         while ((s = fgets(file)))
1016         {
1017                 if(parse_comments)
1018                 {
1019                         if(substring(s, 0, 2) == "//")
1020                         {
1021                                 if(substring(s, 2, 17) == "WAYPOINT_VERSION ")
1022                                         ver = stof(substring(s, 19, -1));
1023                                 else if(substring(s, 2, 14) == "WAYPOINT_TIME ")
1024                                         links_time = substring(s, 16, -1);
1025                                 continue;
1026                         }
1027                         else
1028                         {
1029                                 if(ver < WAYPOINT_VERSION || links_time != waypoint_time)
1030                                 {
1031                                         if (links_time != waypoint_time)
1032                                                 LOG_TRACE("waypoint links for this map are not made for these waypoints.");
1033                                         else
1034                                                 LOG_TRACE("waypoint links for this map are outdated.");
1035                                         if (g_assault)
1036                                         {
1037                                                 LOG_TRACE("Assault waypoint links need to be manually updated in the editor");
1038                                         }
1039                                         else
1040                                         {
1041                                                 LOG_TRACE("automatically updating...");
1042                                                 waypoint_schedulerelinkall();
1043                                                 fclose(file);
1044                                                 return false;
1045                                         }
1046                                 }
1047                                 parse_comments = false;
1048                         }
1049                 }
1050
1051                 tokens = tokenizebyseparator(s, "*");
1052
1053                 if (tokens!=2)
1054                 {
1055                         // bad file format
1056                         fclose(file);
1057                         waypoint_schedulerelinkall(); // link all the autogenerated waypoints (teleporters)
1058                         return false;
1059                 }
1060
1061                 wp_from_pos     = stov(argv(0));
1062                 wp_to_pos       = stov(argv(1));
1063
1064                 // Search "from" waypoint
1065                 if(!wp_from || wp_from.origin!=wp_from_pos)
1066                 {
1067                         wp_from = findradius(wp_from_pos, 1);
1068                         found = false;
1069                         while(wp_from)
1070                         {
1071                                 if(vdist(wp_from.origin - wp_from_pos, <, 1))
1072                                 if(wp_from.classname == "waypoint")
1073                                 {
1074                                         found = true;
1075                                         break;
1076                                 }
1077                                 wp_from = wp_from.chain;
1078                         }
1079
1080                         if(!found)
1081                         {
1082                                 LOG_TRACE("waypoint_load_links: couldn't find 'from' waypoint at ", vtos(wp_from_pos));
1083                                 continue;
1084                         }
1085                 }
1086
1087                 // Search "to" waypoint
1088                 wp_to = findradius(wp_to_pos, 1);
1089                 found = false;
1090                 while(wp_to)
1091                 {
1092                         if(vdist(wp_to.origin - wp_to_pos, <, 1))
1093                         if(wp_to.classname == "waypoint")
1094                         {
1095                                 found = true;
1096                                 break;
1097                         }
1098                         wp_to = wp_to.chain;
1099                 }
1100
1101                 if(!found)
1102                 {
1103                         LOG_TRACE("waypoint_load_links: couldn't find 'to' waypoint at ", vtos(wp_to_pos));
1104                         continue;
1105                 }
1106
1107                 ++c;
1108                 waypoint_addlink(wp_from, wp_to);
1109         }
1110
1111         fclose(file);
1112
1113         LOG_TRACE("loaded ", ftos(c), " waypoint links from ", filename);
1114
1115         bool scheduled = false;
1116         IL_EACH(g_waypoints, it.wpflags & WAYPOINTFLAG_ITEM,
1117         {
1118                 if (!it.wp00)
1119                 {
1120                         waypoint_schedulerelink(it);
1121                         scheduled = true;
1122                 }
1123         });
1124         if (scheduled)
1125                 return false;
1126
1127         botframe_cachedwaypointlinks = true;
1128         return true;
1129 }
1130
1131 void waypoint_load_or_remove_links_hardwired(bool removal_mode)
1132 {
1133         string s;
1134         float file, tokens, c = 0, found;
1135         entity wp_from = NULL, wp_to;
1136         vector wp_to_pos, wp_from_pos;
1137
1138         string gt_ext = GET_GAMETYPE_EXTENSION();
1139
1140         string filename = sprintf("maps/%s.waypoints.hardwired", strcat(mapname, gt_ext));
1141         file = fopen(filename, FILE_READ);
1142
1143         if (gt_ext != "" && file < 0)
1144         {
1145                 // if race waypoint file doesn't exist load the default one
1146                 filename = sprintf("maps/%s.waypoints.hardwired", mapname);
1147                 file = fopen(filename, FILE_READ);
1148         }
1149
1150         botframe_loadedforcedlinks = true;
1151
1152         if (file < 0)
1153         {
1154                 if(!removal_mode)
1155                         LOG_TRACE("waypoint links load from ", filename, " failed");
1156                 return;
1157         }
1158
1159         while ((s = fgets(file)))
1160         {
1161                 if(substring(s, 0, 2)=="//")
1162                         continue;
1163
1164                 if(substring(s, 0, 1)=="#")
1165                         continue;
1166
1167                 tokens = tokenizebyseparator(s, "*");
1168
1169                 if (tokens!=2)
1170                         continue;
1171
1172                 wp_from_pos     = stov(argv(0));
1173                 wp_to_pos       = stov(argv(1));
1174
1175                 // Search "from" waypoint
1176                 if(!wp_from || wp_from.origin!=wp_from_pos)
1177                 {
1178                         wp_from = findradius(wp_from_pos, 5);
1179                         found = false;
1180                         while(wp_from)
1181                         {
1182                                 if(vdist(wp_from.origin - wp_from_pos, <, 5))
1183                                 if(wp_from.classname == "waypoint")
1184                                 {
1185                                         found = true;
1186                                         break;
1187                                 }
1188                                 wp_from = wp_from.chain;
1189                         }
1190
1191                         if(!found)
1192                         {
1193                                 if(!removal_mode)
1194                                         LOG_INFO("NOTICE: Can not find origin waypoint for the hardwired link ", s, ". Path skipped");
1195                                 continue;
1196                         }
1197                 }
1198
1199                 // Search "to" waypoint
1200                 wp_to = findradius(wp_to_pos, 5);
1201                 found = false;
1202                 while(wp_to)
1203                 {
1204                         if(vdist(wp_to.origin - wp_to_pos, <, 5))
1205                         if(wp_to.classname == "waypoint")
1206                         {
1207                                 found = true;
1208                                 break;
1209                         }
1210                         wp_to = wp_to.chain;
1211                 }
1212
1213                 if(!found)
1214                 {
1215                         if(!removal_mode)
1216                                 LOG_INFO("NOTICE: Can not find destination waypoint for the hardwired link ", s, ". Path skipped");
1217                         continue;
1218                 }
1219
1220                 ++c;
1221                 if(removal_mode)
1222                 {
1223                         waypoint_removelink(wp_from, wp_to);
1224                         continue;
1225                 }
1226
1227                 waypoint_addlink(wp_from, wp_to);
1228                 wp_from.wphardwired = true;
1229                 wp_to.wphardwired = true;
1230                 waypoint_setupmodel(wp_from);
1231                 waypoint_setupmodel(wp_to);
1232         }
1233
1234         fclose(file);
1235
1236         LOG_TRACE(((removal_mode) ? "unloaded " : "loaded "),
1237                 ftos(c), " waypoint links from maps/", mapname, ".waypoints.hardwired");
1238 }
1239
1240 entity waypoint_get_link(entity w, float i)
1241 {
1242         switch(i)
1243         {
1244                 case  0:return w.wp00;
1245                 case  1:return w.wp01;
1246                 case  2:return w.wp02;
1247                 case  3:return w.wp03;
1248                 case  4:return w.wp04;
1249                 case  5:return w.wp05;
1250                 case  6:return w.wp06;
1251                 case  7:return w.wp07;
1252                 case  8:return w.wp08;
1253                 case  9:return w.wp09;
1254                 case 10:return w.wp10;
1255                 case 11:return w.wp11;
1256                 case 12:return w.wp12;
1257                 case 13:return w.wp13;
1258                 case 14:return w.wp14;
1259                 case 15:return w.wp15;
1260                 case 16:return w.wp16;
1261                 case 17:return w.wp17;
1262                 case 18:return w.wp18;
1263                 case 19:return w.wp19;
1264                 case 20:return w.wp20;
1265                 case 21:return w.wp21;
1266                 case 22:return w.wp22;
1267                 case 23:return w.wp23;
1268                 case 24:return w.wp24;
1269                 case 25:return w.wp25;
1270                 case 26:return w.wp26;
1271                 case 27:return w.wp27;
1272                 case 28:return w.wp28;
1273                 case 29:return w.wp29;
1274                 case 30:return w.wp30;
1275                 case 31:return w.wp31;
1276                 default:return NULL;
1277         }
1278 }
1279
1280 // Save all waypoint links to a file
1281 void waypoint_save_links()
1282 {
1283         // temporarily remove hardwired links so they don't get saved among normal links
1284         waypoint_remove_links_hardwired();
1285
1286         string gt_ext = GET_GAMETYPE_EXTENSION();
1287
1288         string filename = sprintf("maps/%s.waypoints.cache", strcat(mapname, gt_ext));
1289         int file = fopen(filename, FILE_WRITE);
1290         if (file < 0)
1291         {
1292                 LOG_INFOF("waypoint link save to %s failed", filename);
1293                 return;
1294         }
1295
1296         fputs(file, strcat("//", "WAYPOINT_VERSION ", ftos_decimals(WAYPOINT_VERSION, 2), "\n"));
1297         if (waypoint_time != "")
1298                 fputs(file, strcat("//", "WAYPOINT_TIME ", waypoint_time, "\n"));
1299
1300         int c = 0;
1301         IL_EACH(g_waypoints, true,
1302         {
1303                 for(int j = 0; j < 32; ++j)
1304                 {
1305                         entity link = waypoint_get_link(it, j);
1306                         if(link)
1307                         {
1308                                 // NOTE: vtos rounds vector components to 1 decimal place
1309                                 string s = strcat(vtos(it.origin), "*", vtos(link.origin), "\n");
1310                                 fputs(file, s);
1311                                 ++c;
1312                         }
1313                 }
1314         });
1315         fclose(file);
1316
1317         botframe_cachedwaypointlinks = true;
1318
1319         LOG_INFOF("saved %d waypoint links to %s", c, filename);
1320
1321         waypoint_load_links_hardwired();
1322 }
1323
1324 // save waypoints to gamedir/data/maps/mapname.waypoints
1325 void waypoint_saveall()
1326 {
1327         string gt_ext = GET_GAMETYPE_EXTENSION();
1328
1329         string filename = sprintf("maps/%s.waypoints", strcat(mapname, gt_ext));
1330         int file = fopen(filename, FILE_WRITE);
1331         if (file < 0)
1332         {
1333                 waypoint_save_links(); // save anyway?
1334                 botframe_loadedforcedlinks = false;
1335
1336                 LOG_INFOF("waypoint links: save to %s failed", filename);
1337                 return;
1338         }
1339
1340         float sym = autocvar_g_waypointeditor_symmetrical;
1341         string sym_str = ftos(sym);
1342         if (sym == -1 || (sym == 1 && autocvar_g_waypointeditor_symmetrical_order >= 2))
1343         {
1344                 if (sym == 1)
1345                 {
1346                         sym_str = cons(sym_str, "-");
1347                         sym_str = cons(sym_str, "-");
1348                 }
1349                 else
1350                 {
1351                         sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_origin.x));
1352                         sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_origin.y));
1353                 }
1354                 if (autocvar_g_waypointeditor_symmetrical_order >= 2)
1355                         sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_order));
1356         }
1357         else if (autocvar_g_waypointeditor_symmetrical == -2)
1358         {
1359                 sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_axis.x));
1360                 sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_axis.y));
1361         }
1362
1363         // a group of 3 comments doesn't break compatibility with older Xonotic versions
1364         // (they are read as a waypoint with origin '0 0 0' and flag 0 though)
1365         fputs(file, strcat("//", "WAYPOINT_VERSION ", ftos_decimals(WAYPOINT_VERSION, 2), "\n"));
1366         fputs(file, strcat("//", "WAYPOINT_SYMMETRY ", sym_str, "\n"));
1367
1368         strcpy(waypoint_time, strftime(true, "%Y-%m-%d %H:%M:%S"));
1369         fputs(file, strcat("//", "WAYPOINT_TIME ", waypoint_time, "\n"));
1370         //fputs(file, strcat("//", "\n"));
1371         //fputs(file, strcat("//", "\n"));
1372         //fputs(file, strcat("//", "\n"));
1373
1374         int c = 0;
1375         IL_EACH(g_waypoints, true,
1376         {
1377                 if(it.wpflags & WAYPOINTFLAG_GENERATED)
1378                         continue;
1379
1380                 string s;
1381                 // NOTE: vtos rounds vector components to 1 decimal place
1382                 s = strcat(vtos(it.origin + it.mins), "\n");
1383                 s = strcat(s, vtos(it.origin + it.maxs));
1384                 s = strcat(s, "\n");
1385                 s = strcat(s, ftos(it.wpflags));
1386                 s = strcat(s, "\n");
1387                 fputs(file, s);
1388                 c++;
1389         });
1390         fclose(file);
1391         waypoint_save_links();
1392         botframe_loadedforcedlinks = false;
1393
1394         LOG_INFOF("saved %d waypoints to %s", c, filename);
1395 }
1396
1397 // load waypoints from file
1398 float waypoint_loadall()
1399 {
1400         string s;
1401         float file, cwp, cwb, fl;
1402         vector m1, m2;
1403         cwp = 0;
1404         cwb = 0;
1405
1406         string gt_ext = GET_GAMETYPE_EXTENSION();
1407
1408         string filename = sprintf("maps/%s.waypoints", strcat(mapname, gt_ext));
1409         file = fopen(filename, FILE_READ);
1410
1411         if (gt_ext != "" && file < 0)
1412         {
1413                 // if race waypoint file doesn't exist load the default one
1414                 filename = sprintf("maps/%s.waypoints", mapname);
1415                 file = fopen(filename, FILE_READ);
1416         }
1417
1418         if (file < 0)
1419         {
1420                 LOG_TRACE("waypoint load from ", filename, " failed");
1421                 return 0;
1422         }
1423
1424         bool parse_comments = true;
1425         float ver = 0;
1426         float sym = 0;
1427         float sym_param1 = 0, sym_param2 = 0, sym_param3 = 0;
1428
1429         while ((s = fgets(file)))
1430         {
1431                 if(parse_comments)
1432                 {
1433                         if(substring(s, 0, 2) == "//")
1434                         {
1435                                 if(substring(s, 2, 17) == "WAYPOINT_VERSION ")
1436                                         ver = stof(substring(s, 19, -1));
1437                                 else if(substring(s, 2, 18) == "WAYPOINT_SYMMETRY ")
1438                                 {
1439                                         int tokens = tokenizebyseparator(substring(s, 20, -1), " ");
1440                                         if (tokens) { sym = stof(argv(0)); }
1441                                         if (tokens > 1) { sym_param1 = stof(argv(1)); }
1442                                         if (tokens > 2) { sym_param2 = stof(argv(2)); }
1443                                         if (tokens > 3) { sym_param3 = stof(argv(3)); }
1444                                 }
1445                                 else if(substring(s, 2, 14) == "WAYPOINT_TIME ")
1446                                         strcpy(waypoint_time, substring(s, 16, -1));
1447                                 continue;
1448                         }
1449                         else
1450                         {
1451                                 if(floor(ver) < floor(WAYPOINT_VERSION))
1452                                 {
1453                                         LOG_TRACE("waypoints for this map are outdated");
1454                                         LOG_TRACE("please update them in the editor");
1455                                 }
1456                                 parse_comments = false;
1457                         }
1458                 }
1459                 m1 = stov(s);
1460                 s = fgets(file);
1461                 if (!s)
1462                         break;
1463                 m2 = stov(s);
1464                 s = fgets(file);
1465                 if (!s)
1466                         break;
1467                 fl = stof(s);
1468                 waypoint_spawn(m1, m2, fl);
1469                 if (m1 == m2)
1470                         cwp = cwp + 1;
1471                 else
1472                         cwb = cwb + 1;
1473         }
1474         fclose(file);
1475         LOG_TRACE("loaded ", ftos(cwp), " waypoints and ", ftos(cwb), " wayboxes from maps/", mapname, ".waypoints");
1476
1477         if (autocvar_g_waypointeditor && autocvar_g_waypointeditor_symmetrical_allowload)
1478         {
1479                 cvar_set("g_waypointeditor_symmetrical", ftos(sym));
1480                 if (sym == 1 && sym_param3 < 2)
1481                         cvar_set("g_waypointeditor_symmetrical_order", "0"); // make sure this is reset if not loaded
1482                 if (sym == -1 || (sym == 1 && sym_param3 >= 2))
1483                 {
1484                         string params;
1485                         if (sym == 1)
1486                                 params = cons("-", "-");
1487                         else
1488                         {
1489                                 params = cons(ftos(sym_param1), ftos(sym_param2));
1490                                 cvar_set("g_waypointeditor_symmetrical_origin", params);
1491                         }
1492                         cvar_set("g_waypointeditor_symmetrical_order", ftos(sym_param3));
1493                         LOG_INFO("Waypoint editor: loaded symmetry ", ftos(sym), " with origin ", params, " and order ", ftos(sym_param3));
1494                 }
1495                 else if (sym == -2)
1496                 {
1497                         string params = strcat(ftos(sym_param1), " ", ftos(sym_param2));
1498                         cvar_set("g_waypointeditor_symmetrical_axis", params);
1499                         LOG_INFO("Waypoint editor: loaded symmetry ", ftos(sym), " with axis ", params);
1500                 }
1501                 else
1502                         LOG_INFO("Waypoint editor: loaded symmetry ", ftos(sym));
1503                 LOG_INFO(strcat("g_waypointeditor_symmetrical", " has been set to ", cvar_string("g_waypointeditor_symmetrical")));
1504         }
1505
1506         return cwp + cwb;
1507 }
1508
1509 #define waypoint_fixorigin(position, tracetest_ent) \
1510         waypoint_fixorigin_down_dir(position, tracetest_ent, '0 0 -1')
1511
1512 vector waypoint_fixorigin_down_dir(vector position, entity tracetest_ent, vector down_dir)
1513 {
1514         vector endpos = position + down_dir * 3000;
1515         tracebox(position + '0 0 1', PL_MIN_CONST, PL_MAX_CONST, endpos, MOVE_NOMONSTERS, tracetest_ent);
1516         if(trace_startsolid)
1517                 tracebox(position + '0 0 1' * (1 - PL_MIN_CONST.z / 2), PL_MIN_CONST, PL_MAX_CONST, endpos, MOVE_NOMONSTERS, tracetest_ent);
1518         if(trace_startsolid)
1519                 tracebox(position + '0 0 1' * (1 - PL_MIN_CONST.z), PL_MIN_CONST, PL_MAX_CONST, endpos, MOVE_NOMONSTERS, tracetest_ent);
1520         if(trace_fraction < 1)
1521                 position = trace_endpos;
1522         return position;
1523 }
1524
1525 void waypoint_spawnforitem_force(entity e, vector org)
1526 {
1527         // Fix the waypoint altitude if necessary
1528         org = waypoint_fixorigin(org, NULL);
1529
1530         // don't spawn an item spawnfunc_waypoint if it already exists
1531         IL_EACH(g_waypoints, true,
1532         {
1533                 if(it.wpisbox)
1534                 {
1535                         if(boxesoverlap(org, org, it.absmin, it.absmax))
1536                         {
1537                                 e.nearestwaypoint = it;
1538                                 return;
1539                         }
1540                 }
1541                 else
1542                 {
1543                         if(vdist(it.origin - org, <, 16))
1544                         {
1545                                 e.nearestwaypoint = it;
1546                                 return;
1547                         }
1548                 }
1549         });
1550
1551         e.nearestwaypoint = waypoint_spawn(org, org, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_ITEM);
1552 }
1553
1554 void waypoint_spawnforitem(entity e)
1555 {
1556         if(!bot_waypoints_for_items)
1557                 return;
1558
1559         waypoint_spawnforitem_force(e, e.origin);
1560 }
1561
1562 void waypoint_spawnforteleporter_boxes(entity e, int teleport_flag, vector org1, vector org2, vector destination1, vector destination2, float timetaken)
1563 {
1564         entity w;
1565         entity dw;
1566         w = waypoint_spawn(org1, org2, WAYPOINTFLAG_GENERATED | teleport_flag | WAYPOINTFLAG_NORELINK);
1567         dw = waypoint_spawn(destination1, destination2, WAYPOINTFLAG_GENERATED);
1568         // one way link to the destination
1569         w.wp00 = dw;
1570         w.wp00mincost = timetaken; // this is just for jump pads
1571         // the teleporter's nearest spawnfunc_waypoint is this one
1572         // (teleporters are not goals, so this is probably useless)
1573         e.nearestwaypoint = w;
1574         e.nearestwaypointtimeout = -1;
1575 }
1576
1577 void waypoint_spawnforteleporter_wz(entity e, entity tracetest_ent)
1578 {
1579         float src_angle = e.warpzone_angles.x;
1580         while (src_angle < -180) src_angle += 360;
1581         while (src_angle > 180) src_angle -= 360;
1582
1583         float dest_angle = e.enemy.warpzone_angles.x;
1584         while (dest_angle < -180) dest_angle += 360;
1585         while (dest_angle > 180) dest_angle -= 360;
1586
1587         // no waypoints for warpzones pointing upwards, they can't be used by the bots
1588         if (src_angle == -90 || dest_angle == -90)
1589                 return;
1590
1591         makevectors(e.warpzone_angles);
1592         vector src = (e.absmin + e.absmax) * 0.5;
1593         src += ((e.warpzone_origin - src) * v_forward) * v_forward + 16 * v_right;
1594         vector down_dir_src = -v_up;
1595
1596         makevectors(e.enemy.warpzone_angles);
1597         vector dest = (e.enemy.absmin + e.enemy.absmax) * 0.5;
1598         dest += ((e.enemy.warpzone_origin - dest) * v_forward) * v_forward - 16 * v_right;
1599         vector down_dir_dest = -v_up;
1600
1601         int extra_flag = 0;
1602         // don't snap to the ground waypoints for source warpzones pointing downwards
1603         if (src_angle != 90)
1604         {
1605                 src = waypoint_fixorigin_down_dir(src, tracetest_ent, down_dir_src);
1606                 dest = waypoint_fixorigin_down_dir(dest, tracetest_ent, down_dir_dest);
1607                 // oblique warpzones need a jump otherwise bots gets stuck
1608                 if (src_angle != 0)
1609                         extra_flag = WAYPOINTFLAG_JUMP;
1610         }
1611
1612         waypoint_spawnforteleporter_boxes(e, WAYPOINTFLAG_TELEPORT | extra_flag, src, src, dest, dest, 0);
1613 }
1614
1615 void waypoint_spawnforteleporter(entity e, vector destination, float timetaken, entity tracetest_ent)
1616 {
1617         destination = waypoint_fixorigin(destination, tracetest_ent);
1618         waypoint_spawnforteleporter_boxes(e, WAYPOINTFLAG_TELEPORT, e.absmin - PL_MAX_CONST + '1 1 1', e.absmax - PL_MIN_CONST + '-1 -1 -1', destination, destination, timetaken);
1619 }
1620
1621 entity waypoint_spawnpersonal(entity this, vector position)
1622 {
1623         entity w;
1624
1625         // drop the waypoint to a proper location:
1626         //   first move it up by a player height
1627         //   then move it down to hit the floor with player bbox size
1628         position = waypoint_fixorigin(position, this);
1629
1630         w = waypoint_spawn(position, position, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_PERSONAL);
1631         w.nearestwaypoint = NULL;
1632         w.nearestwaypointtimeout = 0;
1633         w.owner = this;
1634
1635         waypoint_schedulerelink(w);
1636
1637         return w;
1638 }
1639
1640 void waypoint_showlink(entity wp1, entity wp2, int display_type)
1641 {
1642         if (!(wp1 && wp2))
1643                 return;
1644
1645         if (wp1.wphardwired && wp2.wphardwired)
1646                 te_beam(NULL, wp1.origin, wp2.origin);
1647         else if (display_type == 1)
1648                 te_lightning2(NULL, wp1.origin, wp2.origin);
1649 }
1650
1651 void waypoint_showlinks_to(entity wp, int display_type)
1652 {
1653         IL_EACH(g_waypoints, it != wp,
1654         {
1655                 if (waypoint_islinked(it, wp))
1656                         waypoint_showlink(it, wp, display_type);
1657         });
1658 }
1659
1660 void waypoint_showlinks_from(entity wp, int display_type)
1661 {
1662         waypoint_showlink(wp.wp00, wp, display_type); waypoint_showlink(wp.wp16, wp, display_type);
1663         waypoint_showlink(wp.wp01, wp, display_type); waypoint_showlink(wp.wp17, wp, display_type);
1664         waypoint_showlink(wp.wp02, wp, display_type); waypoint_showlink(wp.wp18, wp, display_type);
1665         waypoint_showlink(wp.wp03, wp, display_type); waypoint_showlink(wp.wp19, wp, display_type);
1666         waypoint_showlink(wp.wp04, wp, display_type); waypoint_showlink(wp.wp20, wp, display_type);
1667         waypoint_showlink(wp.wp05, wp, display_type); waypoint_showlink(wp.wp21, wp, display_type);
1668         waypoint_showlink(wp.wp06, wp, display_type); waypoint_showlink(wp.wp22, wp, display_type);
1669         waypoint_showlink(wp.wp07, wp, display_type); waypoint_showlink(wp.wp23, wp, display_type);
1670         waypoint_showlink(wp.wp08, wp, display_type); waypoint_showlink(wp.wp24, wp, display_type);
1671         waypoint_showlink(wp.wp09, wp, display_type); waypoint_showlink(wp.wp25, wp, display_type);
1672         waypoint_showlink(wp.wp10, wp, display_type); waypoint_showlink(wp.wp26, wp, display_type);
1673         waypoint_showlink(wp.wp11, wp, display_type); waypoint_showlink(wp.wp27, wp, display_type);
1674         waypoint_showlink(wp.wp12, wp, display_type); waypoint_showlink(wp.wp28, wp, display_type);
1675         waypoint_showlink(wp.wp13, wp, display_type); waypoint_showlink(wp.wp29, wp, display_type);
1676         waypoint_showlink(wp.wp14, wp, display_type); waypoint_showlink(wp.wp30, wp, display_type);
1677         waypoint_showlink(wp.wp15, wp, display_type); waypoint_showlink(wp.wp31, wp, display_type);
1678 }
1679
1680 void crosshair_trace_waypoints(entity pl)
1681 {
1682         IL_EACH(g_waypoints, true, {
1683                 it.solid = SOLID_BSP;
1684                 if (!it.wpisbox)
1685                         setsize(it, '-16 -16 -16', '16 16 16');
1686         });
1687
1688         crosshair_trace(pl);
1689
1690         IL_EACH(g_waypoints, true, {
1691                 it.solid = SOLID_TRIGGER;
1692                 if (!it.wpisbox)
1693                         setsize(it, '0 0 0', '0 0 0');
1694         });
1695         if (trace_ent.classname != "waypoint")
1696                 trace_ent = NULL;
1697 }
1698
1699 void botframe_showwaypointlinks()
1700 {
1701         if (time < botframe_waypointeditorlightningtime)
1702                 return;
1703         botframe_waypointeditorlightningtime = time + 0.5;
1704         FOREACH_CLIENT(IS_PLAYER(it) && !it.isbot,
1705         {
1706                 int display_type = 0;
1707                 if (wasfreed(it.wp_aimed))
1708                         it.wp_aimed = NULL;
1709                 if (wasfreed(it.wp_locked))
1710                         it.wp_locked = NULL;
1711                 if (PHYS_INPUT_BUTTON_USE(it))
1712                         it.wp_locked = it.wp_aimed;
1713                 entity head = it.wp_locked;
1714                 if (!head)
1715                         head = navigation_findnearestwaypoint(it, false);
1716                 it.nearestwaypoint = head; // mainly useful for debug
1717                 it.nearestwaypointtimeout = time + 2; // while I'm at it...
1718                 if (IS_ONGROUND(it) || it.waterlevel > WATERLEVEL_NONE || it.wp_locked)
1719                         display_type = 1; // default
1720                 else if(head && (head.wphardwired))
1721                         display_type = 2; // only hardwired
1722
1723                 if (display_type)
1724                 {
1725                         //navigation_testtracewalk = true;
1726                         //print("currently selected WP is ", etos(head), "\n");
1727                         //navigation_testtracewalk = false;
1728                         if (head)
1729                         {
1730                                 te_lightning2(NULL, head.origin, it.origin);
1731                                 if(PHYS_INPUT_BUTTON_CROUCH(it))
1732                                         waypoint_showlinks_to(head, display_type);
1733                                 else
1734                                         waypoint_showlinks_from(head, display_type);
1735                         }
1736                 }
1737                 string str;
1738                 entity wp = NULL;
1739                 if (vdist(vec2(it.velocity), <, autocvar_sv_maxspeed * 1.1))
1740                 {
1741                         crosshair_trace_waypoints(it);
1742                         if (trace_ent)
1743                         {
1744                                 wp = trace_ent;
1745                                 if (wp != it.wp_aimed)
1746                                 {
1747                                         str = sprintf("\necho ^2WP info^7: entity: %d, flags: %d, origin: '%s'\n", etof(wp), wp.wpflags, vtos(wp.origin));
1748                                         if (wp.wpisbox)
1749                                                 str = strcat(str, sprintf("echo \" absmin: '%s', absmax: '%s'\"\n", vtos(wp.absmin), vtos(wp.absmax)));
1750                                         stuffcmd(it, str);
1751                                         str = sprintf("entity: %d\nflags: %d\norigin: \'%s\'", etof(wp), wp.wpflags, vtos(wp.origin));
1752                                         if (wp.wpisbox)
1753                                                 str = strcat(str, sprintf(" \nabsmin: '%s'\nabsmax: '%s'", vtos(wp.absmin), vtos(wp.absmax)));
1754                                         debug_text_3d(wp.origin, str, 0, 7, '0 0 0');
1755                                 }
1756                         }
1757                 }
1758                 if (it.wp_aimed != wp)
1759                         it.wp_aimed = wp;
1760         });
1761 }
1762
1763 float botframe_autowaypoints_fixdown(vector v)
1764 {
1765         tracebox(v, PL_MIN_CONST, PL_MAX_CONST, v + '0 0 -64', MOVE_NOMONSTERS, NULL);
1766         if(trace_fraction >= 1)
1767                 return 0;
1768         return 1;
1769 }
1770
1771 float botframe_autowaypoints_createwp(vector v, entity p, .entity fld, float f)
1772 {
1773         IL_EACH(g_waypoints, boxesoverlap(v - '32 32 32', v + '32 32 32', it.absmin, it.absmax),
1774         {
1775                 // if a matching spawnfunc_waypoint already exists, don't add a duplicate
1776                 return 0;
1777         });
1778
1779         waypoint_schedulerelink(p.(fld) = waypoint_spawn(v, v, f));
1780         return 1;
1781 }
1782
1783 // return value:
1784 //    1 = WP created
1785 //    0 = no action needed
1786 //   -1 = temp fail, try from world too
1787 //   -2 = permanent fail, do not retry
1788 float botframe_autowaypoints_fix_from(entity p, float walkfromwp, entity wp, .entity fld)
1789 {
1790         // make it possible to go from p to wp, if we can
1791         // if wp is NULL, nearest is chosen
1792
1793         entity w;
1794         vector porg;
1795         float t, tmin, tmax;
1796         vector o;
1797         vector save;
1798
1799         if(!botframe_autowaypoints_fixdown(p.origin))
1800                 return -2;
1801         porg = trace_endpos;
1802
1803         if(wp)
1804         {
1805                 // if any WP w fulfills wp -> w -> porg and w is closer than wp, then switch from wp to w
1806
1807                 // if wp -> porg, then OK
1808                 float maxdist;
1809                 if(navigation_waypoint_will_link(wp.origin, porg, p, porg, 0, wp.origin, 0, walkfromwp, 1050))
1810                 {
1811                         // we may find a better one
1812                         maxdist = vlen(wp.origin - porg);
1813                 }
1814                 else
1815                 {
1816                         // accept any "good"
1817                         maxdist = 2100;
1818                 }
1819
1820                 float bestdist = maxdist;
1821                 IL_EACH(g_waypoints, it != wp && !(it.wpflags & WAYPOINTFLAG_NORELINK),
1822                 {
1823                         float d = vlen(wp.origin - it.origin) + vlen(it.origin - porg);
1824                         if(d < bestdist)
1825                         if(navigation_waypoint_will_link(wp.origin, it.origin, p, it.origin, 0, wp.origin, 0, walkfromwp, 1050))
1826                         if(navigation_waypoint_will_link(it.origin, porg, p, porg, 0, it.origin, 0, walkfromwp, 1050))
1827                         {
1828                                 bestdist = d;
1829                                 p.(fld) = it;
1830                         }
1831                 });
1832                 if(bestdist < maxdist)
1833                 {
1834                         LOG_INFO("update chain to new nearest WP ", etos(p.(fld)));
1835                         return 0;
1836                 }
1837
1838                 if(bestdist < 2100)
1839                 {
1840                         // we know maxdist < 2100
1841                         // so wp -> porg is still valid
1842                         // all is good
1843                         p.(fld) = wp;
1844                         return 0;
1845                 }
1846
1847                 // otherwise, no existing WP can fix our issues
1848         }
1849         else
1850         {
1851                 save = p.origin;
1852                 setorigin(p, porg);
1853                 w = navigation_findnearestwaypoint(p, walkfromwp);
1854                 setorigin(p, save);
1855                 if(w)
1856                 {
1857                         p.(fld) = w;
1858                         return 0;
1859                 }
1860         }
1861
1862         tmin = 0;
1863         tmax = 1;
1864         for (;;)
1865         {
1866                 if(tmax - tmin < 0.001)
1867                 {
1868                         // did not get a good candidate
1869                         return -1;
1870                 }
1871
1872                 t = (tmin + tmax) * 0.5;
1873                 o = antilag_takebackorigin(p, CS(p), time - t);
1874                 if(!botframe_autowaypoints_fixdown(o))
1875                         return -2;
1876                 o = trace_endpos;
1877
1878                 if(wp)
1879                 {
1880                         if(!navigation_waypoint_will_link(wp.origin, o, p, o, 0, wp.origin, 0, walkfromwp, 1050))
1881                         {
1882                                 // we cannot walk from wp.origin to o
1883                                 // get closer to tmax
1884                                 tmin = t;
1885                                 continue;
1886                         }
1887                 }
1888                 else
1889                 {
1890                         save = p.origin;
1891                         setorigin(p, o);
1892                         w = navigation_findnearestwaypoint(p, walkfromwp);
1893                         setorigin(p, save);
1894                         if(!w)
1895                         {
1896                                 // we cannot walk from any WP to o
1897                                 // get closer to tmax
1898                                 tmin = t;
1899                                 continue;
1900                         }
1901                 }
1902
1903                 // if we get here, o is valid regarding waypoints
1904                 // check if o is connected right to the player
1905                 // we break if it succeeds, as that means o is a good waypoint location
1906                 if(navigation_waypoint_will_link(o, porg, p, porg, 0, o, 0, walkfromwp, 1050))
1907                         break;
1908
1909                 // o is no good, we need to get closer to the player
1910                 tmax = t;
1911         }
1912
1913         LOG_INFO("spawning a waypoint for connecting to ", etos(wp));
1914         botframe_autowaypoints_createwp(o, p, fld, 0);
1915         return 1;
1916 }
1917
1918 // automatically create missing waypoints
1919 .entity botframe_autowaypoints_lastwp0, botframe_autowaypoints_lastwp1;
1920 void botframe_autowaypoints_fix(entity p, float walkfromwp, .entity fld)
1921 {
1922         float r = botframe_autowaypoints_fix_from(p, walkfromwp, p.(fld), fld);
1923         if(r != -1)
1924                 return;
1925         r = botframe_autowaypoints_fix_from(p, walkfromwp, NULL, fld);
1926         if(r != -1)
1927                 return;
1928
1929         LOG_INFO("emergency: got no good nearby WP to build a link from, starting a new chain");
1930         if(!botframe_autowaypoints_fixdown(p.origin))
1931                 return; // shouldn't happen, caught above
1932         botframe_autowaypoints_createwp(trace_endpos, p, fld, WAYPOINTFLAG_PROTECTED);
1933 }
1934
1935 void botframe_deleteuselesswaypoints()
1936 {
1937         IL_EACH(g_items, it.bot_pickup,
1938         {
1939                 // NOTE: this protects waypoints if they're the ONLY nearest
1940                 // waypoint. That's the intention.
1941                 navigation_findnearestwaypoint(it, false);  // Walk TO item.
1942                 navigation_findnearestwaypoint(it, true);  // Walk FROM item.
1943         });
1944         IL_EACH(g_waypoints, true,
1945         {
1946                 it.wpflags |= WAYPOINTFLAG_DEAD_END;
1947                 it.wpflags &= ~WAYPOINTFLAG_USEFUL;
1948                 // WP is useful if:
1949                 if (it.wpflags & WAYPOINTFLAG_ITEM)
1950                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1951                 if (it.wpflags & WAYPOINTFLAG_TELEPORT)
1952                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1953                 if (it.wpflags & WAYPOINTFLAG_LADDER)
1954                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1955                 if (it.wpflags & WAYPOINTFLAG_PROTECTED)
1956                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1957                 // b) WP is closest WP for an item/spawnpoint/other entity
1958                 //    This has been done above by protecting these WPs.
1959         });
1960         // c) There are w1, w, w2 so that w1 -> w, w -> w2 and not w1 -> w2.
1961         IL_EACH(g_waypoints, !(it.wpflags & WAYPOINTFLAG_PERSONAL),
1962         {
1963                 for (int m = 0; m < 32; ++m)
1964                 {
1965                         entity w = waypoint_get_link(it, m);
1966                         if (!w)
1967                                 break;
1968                         if (w.wpflags & WAYPOINTFLAG_PERSONAL)
1969                                 continue;
1970                         if (w.wpflags & WAYPOINTFLAG_USEFUL)
1971                                 continue;
1972                         for (int j = 0; j < 32; ++j)
1973                         {
1974                                 entity w2 = waypoint_get_link(w, j);
1975                                 if (!w2)
1976                                         break;
1977                                 if (it == w2)
1978                                         continue;
1979                                 if (w2.wpflags & WAYPOINTFLAG_PERSONAL)
1980                                         continue;
1981                                 // If we got here, it != w2 exist with it -> w
1982                                 // and w -> w2. That means the waypoint is not
1983                                 // a dead end.
1984                                 w.wpflags &= ~WAYPOINTFLAG_DEAD_END;
1985                                 for (int k = 0; k < 32; ++k)
1986                                 {
1987                                         if (waypoint_get_link(it, k) == w2)
1988                                                 continue;
1989                                         // IF WE GET HERE, w is proven useful
1990                                         // to get from it to w2!
1991                                         w.wpflags |= WAYPOINTFLAG_USEFUL;
1992                                         goto next;
1993                                 }
1994                         }
1995 LABEL(next)
1996                 }
1997         });
1998         // d) The waypoint is a dead end. Dead end waypoints must be kept as
1999         //     they are needed to complete routes while autowaypointing.
2000
2001         IL_EACH(g_waypoints, !(it.wpflags & (WAYPOINTFLAG_USEFUL | WAYPOINTFLAG_DEAD_END)),
2002         {
2003                 LOG_INFOF("Removed a waypoint at %v. Try again for more!", it.origin);
2004                 te_explosion(it.origin);
2005                 waypoint_remove(it);
2006                 break;
2007         });
2008
2009         IL_EACH(g_waypoints, true,
2010         {
2011                 it.wpflags &= ~(WAYPOINTFLAG_USEFUL | WAYPOINTFLAG_DEAD_END); // temp flag
2012         });
2013 }
2014
2015 void botframe_autowaypoints()
2016 {
2017         FOREACH_CLIENT(IS_PLAYER(it) && IS_REAL_CLIENT(it) && !IS_DEAD(it), {
2018                 // going back is broken, so only fix waypoints to walk TO the player
2019                 //botframe_autowaypoints_fix(p, false, botframe_autowaypoints_lastwp0);
2020                 botframe_autowaypoints_fix(it, true, botframe_autowaypoints_lastwp1);
2021                 //te_explosion(p.botframe_autowaypoints_lastwp0.origin);
2022         });
2023
2024         if (autocvar_g_waypointeditor_auto >= 2) {
2025                 botframe_deleteuselesswaypoints();
2026         }
2027 }
2028