Merge branch 'master' into terencehill/bot_waypoints
[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 bool waypoint_has_hardwiredlinks(entity wp)
264 {
265         if (!wp)
266                 return false;
267         return (wp.wphw00 != NULL);
268 }
269
270 bool waypoint_is_hardwiredlink(entity wp_from, entity wp_to)
271 {
272         if (!(wp_from && wp_to))
273                 return false;
274
275         if (!wp_from.wphw00) return false; else if (wp_from.wphw00 == wp_to) return true;
276         if (!wp_from.wphw01) return false; else if (wp_from.wphw01 == wp_to) return true;
277         if (!wp_from.wphw02) return false; else if (wp_from.wphw02 == wp_to) return true;
278         if (!wp_from.wphw03) return false; else if (wp_from.wphw03 == wp_to) return true;
279         if (!wp_from.wphw04) return false; else if (wp_from.wphw04 == wp_to) return true;
280         if (!wp_from.wphw05) return false; else if (wp_from.wphw05 == wp_to) return true;
281         if (!wp_from.wphw06) return false; else if (wp_from.wphw06 == wp_to) return true;
282         if (!wp_from.wphw07) return false; else if (wp_from.wphw07 == wp_to) return true;
283
284         return false;
285 }
286
287 void waypoint_setupmodel(entity wp);
288 void waypoint_mark_hardwiredlink(entity wp_from, entity wp_to)
289 {
290         if (!(wp_from && wp_to))
291                 return;
292
293         if (!wp_from.wphw00 || wp_from.wphw00 == wp_to) { wp_from.wphw00 = wp_to; waypoint_setupmodel(wp_from); return; }
294         if (!wp_from.wphw01 || wp_from.wphw01 == wp_to) { wp_from.wphw01 = wp_to; return; }
295         if (!wp_from.wphw02 || wp_from.wphw02 == wp_to) { wp_from.wphw02 = wp_to; return; }
296         if (!wp_from.wphw03 || wp_from.wphw03 == wp_to) { wp_from.wphw03 = wp_to; return; }
297         if (!wp_from.wphw04 || wp_from.wphw04 == wp_to) { wp_from.wphw04 = wp_to; return; }
298         if (!wp_from.wphw05 || wp_from.wphw05 == wp_to) { wp_from.wphw05 = wp_to; return; }
299         if (!wp_from.wphw06 || wp_from.wphw06 == wp_to) { wp_from.wphw06 = wp_to; return; }
300         if (!wp_from.wphw07 || wp_from.wphw07 == wp_to) { wp_from.wphw07 = wp_to; return; }
301
302         return;
303 }
304
305 void waypoint_unmark_hardwiredlink(entity wp_from, entity wp_to)
306 {
307         if (!(wp_from && wp_to))
308                 return;
309
310         int removed = -1;
311         if (removed < 0 && wp_from.wphw00 == wp_to) removed = 0;
312         if (removed < 0 && wp_from.wphw01 == wp_to) removed = 1;
313         if (removed < 0 && wp_from.wphw02 == wp_to) removed = 2;
314         if (removed < 0 && wp_from.wphw03 == wp_to) removed = 3;
315         if (removed < 0 && wp_from.wphw04 == wp_to) removed = 4;
316         if (removed < 0 && wp_from.wphw05 == wp_to) removed = 5;
317         if (removed < 0 && wp_from.wphw06 == wp_to) removed = 6;
318         if (removed < 0 && wp_from.wphw07 == wp_to) removed = 7;
319
320         if (removed >= 0)
321         {
322                 if (removed <= 0) wp_from.wphw00 = wp_from.wphw01;
323                 if (removed <= 1) wp_from.wphw01 = wp_from.wphw02;
324                 if (removed <= 2) wp_from.wphw02 = wp_from.wphw03;
325                 if (removed <= 3) wp_from.wphw03 = wp_from.wphw04;
326                 if (removed <= 4) wp_from.wphw04 = wp_from.wphw05;
327                 if (removed <= 5) wp_from.wphw05 = wp_from.wphw06;
328                 if (removed <= 6) wp_from.wphw06 = wp_from.wphw07;
329                 if (removed <= 7) wp_from.wphw07 = NULL;
330                 if (!wp_from.wphw00)
331                         waypoint_setupmodel(wp_from);
332         }
333
334         return;
335 }
336
337 void waypoint_setupmodel(entity wp)
338 {
339         if (autocvar_g_waypointeditor)
340         {
341                 // TODO: add some sort of visible box in edit mode for box waypoints
342                 vector m1 = wp.mins;
343                 vector m2 = wp.maxs;
344                 setmodel(wp, MDL_WAYPOINT);
345                 setsize(wp, m1, m2);
346                 wp.effects = EF_LOWPRECISION;
347                 if (wp.wpflags & WAYPOINTFLAG_ITEM)
348                         wp.colormod = '1 0 0'; // red
349                 else if (wp.wpflags & WAYPOINTFLAG_GENERATED)
350                         wp.colormod = '1 1 0'; // yellow
351                 else if (wp.wpflags & WAYPOINTFLAG_SUPPORT)
352                         wp.colormod = '0 1 0'; // green
353                 else if (wp.wpflags & WAYPOINTFLAG_CUSTOM_JP)
354                         wp.colormod = '1 0.5 0'; // orange
355                 else if (wp.wpflags & WAYPOINTFLAG_TELEPORT)
356                         wp.colormod = '1 0.5 0'; // orange
357                 else if (wp.wpflags & WAYPOINTFLAG_LADDER)
358                         wp.colormod = '1 0.5 0'; // orange
359                 else if (wp.wpflags & WAYPOINTFLAG_JUMP)
360                         wp.colormod = '1 0.5 0'; // orange
361                 else if (wp.wpflags & WAYPOINTFLAG_CROUCH)
362                         wp.colormod = '0 1 1'; // cyan
363                 else if (waypoint_has_hardwiredlinks(wp))
364                         wp.colormod = '0.5 0 1'; // purple
365                 else
366                         wp.colormod = '1 1 1';
367         }
368         else
369                 wp.model = "";
370 }
371
372 string waypoint_get_type_name(entity wp)
373 {
374         if (wp.wpflags & WAYPOINTFLAG_ITEM) return "^1Item waypoint";
375         else if (wp.wpflags & WAYPOINTFLAG_CROUCH) return "^5Crouch waypoint";
376         else if (wp.wpflags & WAYPOINTFLAG_JUMP) return "^xf80Jump waypoint";
377         else if (wp.wpflags & WAYPOINTFLAG_SUPPORT) return "^2Support waypoint";
378         else if (waypoint_has_hardwiredlinks(wp)) return "^x80fHardwired waypoint";
379         else if (wp.wpflags & WAYPOINTFLAG_LADDER) return "^3Ladder waypoint";
380         else if (wp.wpflags & WAYPOINTFLAG_TELEPORT)
381         {
382                 if (!wp.wpisbox) return "^3Warpzone waypoint";
383                 else if (wp.wpflags & WAYPOINTFLAG_CUSTOM_JP) return "^3Custom jumppad waypoint";
384                 else
385                 {
386                         IL_EACH(g_jumppads, boxesoverlap(wp.absmin, wp.absmax, it.absmin, it.absmax),
387                                 { return "^3Jumppad waypoint"; });
388                         return "^3Teleport waypoint";
389                 }
390         }
391
392         return "^7Waypoint";
393 }
394
395 entity waypoint_get(vector m1, vector m2)
396 {
397         if (m1 == m2)
398         {
399                 m1 -= '8 8 8';
400                 m2 += '8 8 8';
401         }
402         IL_EACH(g_waypoints, boxesoverlap(m1, m2, it.absmin, it.absmax), { return it; });
403
404         return NULL;
405 }
406
407 .float createdtime;
408 entity waypoint_spawn(vector m1, vector m2, float f)
409 {
410         if(!(f & (WAYPOINTFLAG_PERSONAL | WAYPOINTFLAG_GENERATED)) && m1 == m2)
411         {
412                 entity wp_found = waypoint_get(m1, m2);
413                 if (wp_found)
414                         return wp_found;
415         }
416         // spawn only one destination waypoint for teleports teleporting player to the exact same spot
417         // otherwise links loaded from file would be applied only to the first destination
418         // waypoint since link format doesn't specify waypoint entities but just positions
419         if((f & WAYPOINTFLAG_GENERATED) && !(f & (WPFLAGMASK_NORELINK | WAYPOINTFLAG_PERSONAL)) && m1 == m2)
420         {
421                 IL_EACH(g_waypoints, boxesoverlap(m1, m2, it.absmin, it.absmax),
422                 {
423                         return it;
424                 });
425         }
426
427         entity w = new(waypoint);
428         IL_PUSH(g_waypoints, w);
429         w.dphitcontentsmask = DPCONTENTS_SOLID | DPCONTENTS_BODY | DPCONTENTS_PLAYERCLIP | DPCONTENTS_BOTCLIP;
430         w.wpflags = f;
431         w.solid = SOLID_TRIGGER;
432         w.createdtime = time;
433         setorigin(w, (m1 + m2) * 0.5);
434         setsize(w, m1 - w.origin, m2 - w.origin);
435         if (w.size)
436                 w.wpisbox = true;
437
438         if(!w.wpisbox)
439         {
440                 if (f & WAYPOINTFLAG_CROUCH)
441                         setsize(w, PL_CROUCH_MIN_CONST - '1 1 0', PL_CROUCH_MAX_CONST + '1 1 0');
442                 else
443                         setsize(w, PL_MIN_CONST - '1 1 0', PL_MAX_CONST + '1 1 0');
444                 if(!move_out_of_solid(w))
445                 {
446                         if(!(f & WAYPOINTFLAG_GENERATED))
447                         {
448                                 LOG_TRACE("Killed a waypoint that was stuck in solid at ", vtos(w.origin));
449                                 delete(w);
450                                 return NULL;
451                         }
452                         else
453                         {
454                                 if(autocvar_developer)
455                                 {
456                                         LOG_INFO("A generated waypoint is stuck in solid at ", vtos(w.origin));
457                                         backtrace("Waypoint stuck");
458                                 }
459                         }
460                 }
461                 setsize(w, '0 0 0', '0 0 0');
462         }
463
464         waypoint_clearlinks(w);
465         //waypoint_schedulerelink(w);
466
467         waypoint_setupmodel(w);
468
469         return w;
470 }
471
472 float trigger_push_get_push_time(entity this, vector endpos);
473 void waypoint_addlink_for_custom_jumppad(entity wp_from, entity wp_to)
474 {
475         entity jp = NULL;
476         IL_EACH(g_jumppads, boxesoverlap(wp_from.absmin, wp_from.absmax, it.absmin, it.absmax),
477         {
478                 jp = it;
479                 break;
480         });
481         if (!jp)
482                 return;
483
484         float cost = trigger_push_get_push_time(jp, wp_to.origin);
485         wp_from.wp00 = wp_to;
486         wp_from.wp00mincost = cost;
487         jp.nearestwaypoint = wp_from;
488         jp.nearestwaypointtimeout = -1;
489 }
490
491 bool start_wp_is_spawned;
492 vector start_wp_origin;
493 bool start_wp_is_hardwired;
494 bool start_wp_is_support;
495
496 void waypoint_clear_start_wp_globals(entity pl, bool warn)
497 {
498         start_wp_is_spawned = false;
499         start_wp_origin = '0 0 0';
500         pl.wp_locked = NULL;
501         start_wp_is_hardwired = false;
502         start_wp_is_support = false;
503         if (warn)
504                 LOG_INFO("^xf80Start waypoint has been cleared.\n");
505 }
506
507 void waypoint_start_hardwiredlink(entity pl)
508 {
509         entity wp = pl.nearestwaypoint;
510         if ((!start_wp_is_spawned || start_wp_is_hardwired) && wp && !(wp.wpflags & WPFLAGMASK_NORELINK))
511         {
512                 start_wp_is_hardwired = true;
513                 start_wp_is_spawned = true;
514                 start_wp_origin = wp.origin;
515                 pl.wp_locked = wp;
516                 LOG_INFOF("^x80fNearest waypoint %s marked as hardwired link origin.\n", vtos(wp.origin));
517         }
518         else
519                 start_wp_is_hardwired = false;
520 }
521
522 void waypoint_spawn_fromeditor(entity pl, bool at_crosshair, bool is_jump_wp, bool is_crouch_wp, bool is_support_wp)
523 {
524         if (WAYPOINT_VERSION < waypoint_version_loaded)
525         {
526                 LOG_INFOF("^1Editing waypoints with a higher version number (%f) is not allowed.\n"
527                         "Update Xonotic to make them editable.", waypoint_version_loaded);
528                 return;
529         }
530
531         entity e = NULL, jp = NULL;
532         vector org = pl.origin;
533         if (at_crosshair)
534         {
535                 crosshair_trace(pl);
536                 org = trace_endpos - eZ * PL_MIN_CONST.z;
537                 if (!(start_wp_is_hardwired || start_wp_is_support))
538                         IL_EACH(g_jumppads, boxesoverlap(org + PL_MIN_CONST, org + PL_MAX_CONST, it.absmin, it.absmax),
539                         {
540                                 jp = it;
541                                 break;
542                         });
543         }
544         if (jp || is_jump_wp || is_support_wp)
545         {
546                 if (start_wp_is_spawned)
547                         start_wp_is_spawned = false;
548                 LOG_INFO("^xf80Spawning start waypoint...\n");
549         }
550         int ctf_flags = havocbot_symmetry_origin_order;
551         bool sym = ((autocvar_g_waypointeditor_symmetrical > 0 && ctf_flags >= 2)
552                    || (autocvar_g_waypointeditor_symmetrical < 0));
553         if(autocvar_g_waypointeditor_symmetrical_order >= 2)
554                 ctf_flags = autocvar_g_waypointeditor_symmetrical_order;
555         if (sym && ctf_flags < 2)
556                 ctf_flags = 2;
557         int wp_num = ctf_flags;
558
559         if(!PHYS_INPUT_BUTTON_CROUCH(pl) && !at_crosshair && !is_jump_wp && !is_support_wp)
560         {
561                 // snap waypoint to item's origin if close enough
562                 IL_EACH(g_items, true,
563                 {
564                         vector item_org = (it.absmin + it.absmax) * 0.5;
565                         item_org.z = it.absmin.z - PL_MIN_CONST.z;
566                         if (vlen(item_org - org) < 20)
567                         {
568                                 org = item_org;
569                                 break;
570                         }
571                 });
572         }
573
574         vector start_org = '0 0 0';
575         if (start_wp_is_spawned)
576         {
577                 if (!start_wp_is_hardwired)
578                         LOG_INFO("^xf80Spawning destination waypoint...\n");
579                 start_org = start_wp_origin;
580         }
581
582         // save org as it can be modified spawning symmetrycal waypoints
583         vector initial_origin = '0 0 0';
584         bool initial_origin_is_set = false;
585
586         LABEL(add_wp);
587
588         if (jp)
589         {
590                 e = NULL;
591                 IL_EACH(g_waypoints, it.wpflags & WPFLAGMASK_NORELINK
592                         && boxesoverlap(org + PL_MIN_CONST, org + PL_MAX_CONST, it.absmin, it.absmax),
593                 {
594                         e = it; break;
595                 });
596                 if (!e)
597                         e = waypoint_spawn(jp.absmin - PL_MAX_CONST + '1 1 1', jp.absmax - PL_MIN_CONST + '-1 -1 -1', WAYPOINTFLAG_TELEPORT);
598                 if (!pl.wp_locked)
599                         pl.wp_locked = e;
600         }
601         else if (is_jump_wp || is_support_wp)
602         {
603                 int type_flag = (is_jump_wp) ? WAYPOINTFLAG_JUMP : WAYPOINTFLAG_SUPPORT;
604
605                 entity wp_found = waypoint_get(org, org);
606                 if (wp_found && !(wp_found.wpflags & type_flag))
607                 {
608                         LOG_INFOF("Error: can't spawn a %s waypoint over an existent waypoint of a different type\n", (is_jump_wp) ? "Jump" : "Support");
609                         return;
610                 }
611                 e = waypoint_spawn(org, org, type_flag);
612                 if (!pl.wp_locked)
613                         pl.wp_locked = e;
614         }
615         else
616                 e = waypoint_spawn(org, org, (is_crouch_wp) ? WAYPOINTFLAG_CROUCH : 0);
617         if(!e)
618         {
619                 LOG_INFOF("Couldn't spawn waypoint at %v\n", org);
620                 if (start_wp_is_spawned)
621                         waypoint_clear_start_wp_globals(pl, true);
622                 return;
623         }
624
625         if (!initial_origin_is_set)
626         {
627                 initial_origin = e.origin;
628                 initial_origin_is_set = true;
629         }
630
631         entity start_wp = NULL;
632         if (start_wp_is_spawned)
633         {
634                 IL_EACH(g_waypoints, (start_wp_is_hardwired || it.wpflags & WPFLAGMASK_NORELINK)
635                         && boxesoverlap(start_org, start_org, it.absmin, it.absmax),
636                 {
637                         start_wp = it; break;
638                 });
639                 if(!start_wp)
640                 {
641                         // should not happen
642                         LOG_INFOF("Couldn't find start waypoint at %v\n", start_org);
643                         waypoint_clear_start_wp_globals(pl, true);
644                         return;
645                 }
646                 if (start_wp_is_hardwired)
647                 {
648                         if (waypoint_is_hardwiredlink(start_wp, e))
649                         {
650                                 waypoint_unmark_hardwiredlink(start_wp, e);
651                                 waypoint_removelink(start_wp, e);
652                                 string s = strcat(vtos(start_wp.origin), "*", vtos(e.origin));
653                                 LOG_INFOF("^x80fRemoved hardwired link %s.\n", s);
654                         }
655                         else
656                         {
657                                 if (e.createdtime == time)
658                                 {
659                                         LOG_INFO("Error: hardwired links can be created only between 2 existing (and unconnected) waypoints.\n");
660                                         waypoint_remove(e);
661                                         waypoint_clear_start_wp_globals(pl, true);
662                                         waypoint_spawn_fromeditor(pl, at_crosshair, is_jump_wp, is_crouch_wp, is_support_wp);
663                                         return;
664                                 }
665                                 if (start_wp == e)
666                                 {
667                                         LOG_INFO("Error: start and destination waypoints coincide.\n");
668                                         waypoint_clear_start_wp_globals(pl, true);
669                                         return;
670                                 }
671                                 if (waypoint_islinked(start_wp, e))
672                                 {
673                                         LOG_INFO("Error: waypoints are already linked.\n");
674                                         waypoint_clear_start_wp_globals(pl, true);
675                                         return;
676                                 }
677                                 waypoint_addlink(start_wp, e);
678                                 waypoint_mark_hardwiredlink(start_wp, e);
679                                 string s = strcat(vtos(start_wp.origin), "*", vtos(e.origin));
680                                 LOG_INFOF("^x80fAdded hardwired link %s.\n", s);
681                         }
682                 }
683                 else
684                 {
685                         if (start_wp_is_support)
686                         {
687                                 if (e.SUPPORT_WP)
688                                 {
689                                         LOG_INFOF("Waypoint %v has already a support waypoint, delete it first.\n", e.origin);
690                                         waypoint_clear_start_wp_globals(pl, true);
691                                         return;
692                                 }
693                                 // clear all links to e
694                                 IL_EACH(g_waypoints, it != e,
695                                 {
696                                         if (waypoint_islinked(it, e) && !waypoint_is_hardwiredlink(it, e))
697                                                 waypoint_removelink(it, e);
698                                 });
699                         }
700                         waypoint_addlink(start_wp, e);
701                 }
702         }
703
704         if (!(jp || is_jump_wp || is_support_wp || start_wp_is_hardwired))
705                 waypoint_schedulerelink(e);
706
707         string wp_type_str = waypoint_get_type_name(e);
708
709         bprint(strcat(wp_type_str, "^7 spawned at ", vtos(e.origin), "\n"));
710
711         if (start_wp_is_spawned)
712         {
713                 pl.wp_locked = NULL;
714                 if (!start_wp_is_hardwired)
715                         waypoint_schedulerelink(start_wp);
716                 if (start_wp.wpflags & WAYPOINTFLAG_TELEPORT)
717                 {
718                         if (start_wp.wp00_original == start_wp.wp00)
719                                 start_wp.wpflags &= ~WAYPOINTFLAG_CUSTOM_JP;
720                         else
721                                 start_wp.wpflags |= WAYPOINTFLAG_CUSTOM_JP;
722                 }
723         }
724
725         if (sym)
726         {
727                 org = waypoint_getSymmetricalPoint(org, ctf_flags);
728                 if (jp)
729                 {
730                         IL_EACH(g_jumppads, boxesoverlap(org + PL_MIN_CONST, org + PL_MAX_CONST, it.absmin, it.absmax),
731                         {
732                                 jp = it; break;
733                         });
734                 }
735                 if (start_wp_is_spawned)
736                         start_org = waypoint_getSymmetricalPoint(start_org, ctf_flags);
737                 if (vdist(org - pl.origin, >, 32))
738                 {
739                         if(wp_num > 2)
740                                 wp_num--;
741                         else
742                                 sym = false;
743                         goto add_wp;
744                 }
745         }
746         if (jp || is_jump_wp || is_support_wp)
747         {
748                 if (!start_wp_is_spawned)
749                 {
750                         // we've just created a custom jumppad waypoint
751                         // the next one created by the user will be the destination waypoint
752                         start_wp_is_spawned = true;
753                         start_wp_origin = initial_origin;
754                         if (is_support_wp)
755                                 start_wp_is_support = true;
756                 }
757         }
758         else if (start_wp_is_spawned)
759         {
760                 waypoint_clear_start_wp_globals(pl, false);
761         }
762 }
763
764 void waypoint_remove(entity wp)
765 {
766         IL_EACH(g_waypoints, it != wp,
767         {
768                 if (it.SUPPORT_WP == wp)
769                 {
770                         it.SUPPORT_WP = NULL;
771                         waypoint_schedulerelink(it); // restore incoming links
772                 }
773                 if (waypoint_islinked(it, wp))
774                 {
775                         if (waypoint_is_hardwiredlink(it, wp))
776                                 waypoint_unmark_hardwiredlink(it, wp);
777                         waypoint_removelink(it, wp);
778                 }
779         });
780         delete(wp);
781 }
782
783 void waypoint_remove_fromeditor(entity pl)
784 {
785         if (WAYPOINT_VERSION < waypoint_version_loaded)
786         {
787                 LOG_INFOF("^1Editing waypoints with a higher version number (%f) is not allowed.\n"
788                         "Update Xonotic to make them editable.", waypoint_version_loaded);
789                 return;
790         }
791
792         entity e = navigation_findnearestwaypoint(pl, false);
793
794         int ctf_flags = havocbot_symmetry_origin_order;
795         bool sym = ((autocvar_g_waypointeditor_symmetrical > 0 && ctf_flags >= 2)
796                    || (autocvar_g_waypointeditor_symmetrical < 0));
797         if(autocvar_g_waypointeditor_symmetrical_order >= 2)
798                 ctf_flags = autocvar_g_waypointeditor_symmetrical_order;
799         if (sym && ctf_flags < 2)
800                 ctf_flags = 2;
801         int wp_num = ctf_flags;
802
803         LABEL(remove_wp);
804         if (!e) return;
805
806         if (e.wpflags & WAYPOINTFLAG_GENERATED)
807         {
808                 if (start_wp_is_spawned)
809                         waypoint_clear_start_wp_globals(pl, true);
810                 return;
811         }
812
813         if (waypoint_has_hardwiredlinks(e))
814         {
815                 LOG_INFO("Can't remove a waypoint with hardwired links, remove them with \"wpeditor hardwire\" first\n");
816                 return;
817         }
818
819         entity wp_sym = NULL;
820         if (sym)
821         {
822                 vector org = waypoint_getSymmetricalPoint(e.origin, ctf_flags);
823                 FOREACH_ENTITY_CLASS("waypoint", !(it.wpflags & WAYPOINTFLAG_GENERATED), {
824                         if(vdist(org - it.origin, <, 3))
825                         {
826                                 wp_sym = it;
827                                 break;
828                         }
829                 });
830         }
831
832         bprint(strcat("Waypoint removed at ", vtos(e.origin), "\n"));
833         waypoint_remove(e);
834
835         if (sym && wp_sym)
836         {
837                 e = wp_sym;
838                 if(wp_num > 2)
839                         wp_num--;
840                 else
841                         sym = false;
842                 goto remove_wp;
843         }
844
845         if (start_wp_is_spawned)
846                 waypoint_clear_start_wp_globals(pl, true);
847 }
848
849 void waypoint_removelink(entity from, entity to)
850 {
851         if (from == to || (from.wpflags & WPFLAGMASK_NORELINK && !(from.wpflags & (WAYPOINTFLAG_JUMP | WAYPOINTFLAG_SUPPORT))))
852                 return;
853
854         entity fromwp31_prev = from.wp31;
855
856         switch (waypoint_getlinknum(from, to))
857         {
858                 // fallthrough all the way
859                 case  0: from.wp00 = from.wp01; from.wp00mincost = from.wp01mincost;
860                 case  1: from.wp01 = from.wp02; from.wp01mincost = from.wp02mincost;
861                 case  2: from.wp02 = from.wp03; from.wp02mincost = from.wp03mincost;
862                 case  3: from.wp03 = from.wp04; from.wp03mincost = from.wp04mincost;
863                 case  4: from.wp04 = from.wp05; from.wp04mincost = from.wp05mincost;
864                 case  5: from.wp05 = from.wp06; from.wp05mincost = from.wp06mincost;
865                 case  6: from.wp06 = from.wp07; from.wp06mincost = from.wp07mincost;
866                 case  7: from.wp07 = from.wp08; from.wp07mincost = from.wp08mincost;
867                 case  8: from.wp08 = from.wp09; from.wp08mincost = from.wp09mincost;
868                 case  9: from.wp09 = from.wp10; from.wp09mincost = from.wp10mincost;
869                 case 10: from.wp10 = from.wp11; from.wp10mincost = from.wp11mincost;
870                 case 11: from.wp11 = from.wp12; from.wp11mincost = from.wp12mincost;
871                 case 12: from.wp12 = from.wp13; from.wp12mincost = from.wp13mincost;
872                 case 13: from.wp13 = from.wp14; from.wp13mincost = from.wp14mincost;
873                 case 14: from.wp14 = from.wp15; from.wp14mincost = from.wp15mincost;
874                 case 15: from.wp15 = from.wp16; from.wp15mincost = from.wp16mincost;
875                 case 16: from.wp16 = from.wp17; from.wp16mincost = from.wp17mincost;
876                 case 17: from.wp17 = from.wp18; from.wp17mincost = from.wp18mincost;
877                 case 18: from.wp18 = from.wp19; from.wp18mincost = from.wp19mincost;
878                 case 19: from.wp19 = from.wp20; from.wp19mincost = from.wp20mincost;
879                 case 20: from.wp20 = from.wp21; from.wp20mincost = from.wp21mincost;
880                 case 21: from.wp21 = from.wp22; from.wp21mincost = from.wp22mincost;
881                 case 22: from.wp22 = from.wp23; from.wp22mincost = from.wp23mincost;
882                 case 23: from.wp23 = from.wp24; from.wp23mincost = from.wp24mincost;
883                 case 24: from.wp24 = from.wp25; from.wp24mincost = from.wp25mincost;
884                 case 25: from.wp25 = from.wp26; from.wp25mincost = from.wp26mincost;
885                 case 26: from.wp26 = from.wp27; from.wp26mincost = from.wp27mincost;
886                 case 27: from.wp27 = from.wp28; from.wp27mincost = from.wp28mincost;
887                 case 28: from.wp28 = from.wp29; from.wp28mincost = from.wp29mincost;
888                 case 29: from.wp29 = from.wp30; from.wp29mincost = from.wp30mincost;
889                 case 30: from.wp30 = from.wp31; from.wp30mincost = from.wp31mincost;
890                 case 31: from.wp31 = NULL; from.wp31mincost = 10000000;
891         }
892
893         if (fromwp31_prev && !from.wp31)
894                 waypoint_schedulerelink(from);
895 }
896
897 int waypoint_getlinknum(entity from, entity to)
898 {
899         if (from.wp00 == to) return  0; if (from.wp01 == to) return  1; if (from.wp02 == to) return  2; if (from.wp03 == to) return  3;
900         if (from.wp04 == to) return  4; if (from.wp05 == to) return  5; if (from.wp06 == to) return  6; if (from.wp07 == to) return  7;
901         if (from.wp08 == to) return  8; if (from.wp09 == to) return  9; if (from.wp10 == to) return 10; if (from.wp11 == to) return 11;
902         if (from.wp12 == to) return 12; if (from.wp13 == to) return 13; if (from.wp14 == to) return 14; if (from.wp15 == to) return 15;
903         if (from.wp16 == to) return 16; if (from.wp17 == to) return 17; if (from.wp18 == to) return 18; if (from.wp19 == to) return 19;
904         if (from.wp20 == to) return 20; if (from.wp21 == to) return 21; if (from.wp22 == to) return 22; if (from.wp23 == to) return 23;
905         if (from.wp24 == to) return 24; if (from.wp25 == to) return 25; if (from.wp26 == to) return 26; if (from.wp27 == to) return 27;
906         if (from.wp28 == to) return 28; if (from.wp29 == to) return 29; if (from.wp30 == to) return 30; if (from.wp31 == to) return 31;
907         return -1;
908 }
909
910 bool waypoint_islinked(entity from, entity to)
911 {
912         return (waypoint_getlinknum(from, to) >= 0);
913 }
914
915 void waypoint_updatecost_foralllinks()
916 {
917         IL_EACH(g_waypoints, !(it.wpflags & WAYPOINTFLAG_TELEPORT),
918         {
919                 if(it.wp00) it.wp00mincost = waypoint_getlinkcost(it, it.wp00);
920                 if(it.wp01) it.wp01mincost = waypoint_getlinkcost(it, it.wp01);
921                 if(it.wp02) it.wp02mincost = waypoint_getlinkcost(it, it.wp02);
922                 if(it.wp03) it.wp03mincost = waypoint_getlinkcost(it, it.wp03);
923                 if(it.wp04) it.wp04mincost = waypoint_getlinkcost(it, it.wp04);
924                 if(it.wp05) it.wp05mincost = waypoint_getlinkcost(it, it.wp05);
925                 if(it.wp06) it.wp06mincost = waypoint_getlinkcost(it, it.wp06);
926                 if(it.wp07) it.wp07mincost = waypoint_getlinkcost(it, it.wp07);
927                 if(it.wp08) it.wp08mincost = waypoint_getlinkcost(it, it.wp08);
928                 if(it.wp09) it.wp09mincost = waypoint_getlinkcost(it, it.wp09);
929                 if(it.wp10) it.wp10mincost = waypoint_getlinkcost(it, it.wp10);
930                 if(it.wp11) it.wp11mincost = waypoint_getlinkcost(it, it.wp11);
931                 if(it.wp12) it.wp12mincost = waypoint_getlinkcost(it, it.wp12);
932                 if(it.wp13) it.wp13mincost = waypoint_getlinkcost(it, it.wp13);
933                 if(it.wp14) it.wp14mincost = waypoint_getlinkcost(it, it.wp14);
934                 if(it.wp15) it.wp15mincost = waypoint_getlinkcost(it, it.wp15);
935                 if(it.wp16) it.wp16mincost = waypoint_getlinkcost(it, it.wp16);
936                 if(it.wp17) it.wp17mincost = waypoint_getlinkcost(it, it.wp17);
937                 if(it.wp18) it.wp18mincost = waypoint_getlinkcost(it, it.wp18);
938                 if(it.wp19) it.wp19mincost = waypoint_getlinkcost(it, it.wp19);
939                 if(it.wp20) it.wp20mincost = waypoint_getlinkcost(it, it.wp20);
940                 if(it.wp21) it.wp21mincost = waypoint_getlinkcost(it, it.wp21);
941                 if(it.wp22) it.wp22mincost = waypoint_getlinkcost(it, it.wp22);
942                 if(it.wp23) it.wp23mincost = waypoint_getlinkcost(it, it.wp23);
943                 if(it.wp24) it.wp24mincost = waypoint_getlinkcost(it, it.wp24);
944                 if(it.wp25) it.wp25mincost = waypoint_getlinkcost(it, it.wp25);
945                 if(it.wp26) it.wp26mincost = waypoint_getlinkcost(it, it.wp26);
946                 if(it.wp27) it.wp27mincost = waypoint_getlinkcost(it, it.wp27);
947                 if(it.wp28) it.wp28mincost = waypoint_getlinkcost(it, it.wp28);
948                 if(it.wp29) it.wp29mincost = waypoint_getlinkcost(it, it.wp29);
949                 if(it.wp30) it.wp30mincost = waypoint_getlinkcost(it, it.wp30);
950                 if(it.wp31) it.wp31mincost = waypoint_getlinkcost(it, it.wp31);
951         });
952 }
953
954 float waypoint_getlinearcost(float dist)
955 {
956         if(skill >= autocvar_bot_ai_bunnyhop_skilloffset)
957                 return dist / (autocvar_sv_maxspeed * 1.25);
958         return dist / autocvar_sv_maxspeed;
959 }
960
961 float waypoint_getlinearcost_underwater(float dist)
962 {
963         // NOTE: underwater speed factor is hardcoded in the engine too, see SV_WaterMove
964         return dist / (autocvar_sv_maxspeed * 0.7);
965 }
966
967 float waypoint_getlinearcost_crouched(float dist)
968 {
969         return dist / (autocvar_sv_maxspeed * 0.5);
970 }
971
972 float waypoint_gettravelcost(vector from, vector to, entity from_ent, entity to_ent)
973 {
974         bool submerged_from = navigation_check_submerged_state(from_ent, from);
975         bool submerged_to = navigation_check_submerged_state(to_ent, to);
976
977         if (submerged_from && submerged_to)
978                 return waypoint_getlinearcost_underwater(vlen(to - from));
979
980         if (from_ent.wpflags & WAYPOINTFLAG_CROUCH && to_ent.wpflags & WAYPOINTFLAG_CROUCH)
981                 return waypoint_getlinearcost_crouched(vlen(to - from));
982
983         float c = waypoint_getlinearcost(vlen(to - from));
984
985         float height = from.z - to.z;
986         if(height > jumpheight_vec.z && autocvar_sv_gravity > 0)
987         {
988                 float height_cost; // fall cost
989                 if (boolean(from_ent.wpflags & WAYPOINTFLAG_JUMP))
990                         height_cost = jumpheight_time + sqrt((height + jumpheight_vec.z) / (autocvar_sv_gravity / 2));
991                 else
992                         height_cost = sqrt(height / (autocvar_sv_gravity / 2));
993                 c = waypoint_getlinearcost(vlen(vec2(to - from))); // xy distance cost
994                 if(height_cost > c)
995                         c = height_cost;
996         }
997
998         // consider half path underwater
999         if (submerged_from || submerged_to)
1000                 return (c + waypoint_getlinearcost_underwater(vlen(to - from))) / 2;
1001
1002         // consider half path crouched
1003         if (from_ent.wpflags & WAYPOINTFLAG_CROUCH || to_ent.wpflags & WAYPOINTFLAG_CROUCH)
1004                 return (c + waypoint_getlinearcost_crouched(vlen(to - from))) / 2;
1005
1006         return c;
1007 }
1008
1009 float waypoint_getlinkcost(entity from, entity to)
1010 {
1011         vector v1 = from.origin;
1012         vector v2 = to.origin;
1013         if (from.wpisbox)
1014         {
1015                 vector m1 = from.absmin, m2 = from.absmax;
1016                 v1.x = bound(m1.x, v2.x, m2.x);
1017                 v1.y = bound(m1.y, v2.y, m2.y);
1018                 v1.z = bound(m1.z, v2.z, m2.z);
1019         }
1020         if (to.wpisbox)
1021         {
1022                 vector m1 = to.absmin, m2 = to.absmax;
1023                 v2.x = bound(m1.x, v1.x, m2.x);
1024                 v2.y = bound(m1.y, v1.y, m2.y);
1025                 v2.z = bound(m1.z, v1.z, m2.z);
1026         }
1027         return waypoint_gettravelcost(v1, v2, from, to);
1028 }
1029
1030 // add a new link to the spawnfunc_waypoint, replacing the furthest link it already has
1031 // if c == -1 automatically determine cost of the link
1032 void waypoint_addlink_customcost(entity from, entity to, float c)
1033 {
1034         if (from == to || waypoint_islinked(from, to))
1035                 return;
1036         if (c == -1 && (from.wpflags & WPFLAGMASK_NORELINK) && !(from.wpflags & (WAYPOINTFLAG_JUMP | WAYPOINTFLAG_SUPPORT)))
1037                 return;
1038
1039         if(c == -1)
1040                 c = waypoint_getlinkcost(from, to);
1041
1042         if (from.wp31mincost < c) return;
1043         if (from.wp30mincost < c) {from.wp31 = to;from.wp31mincost = c;return;} from.wp31 = from.wp30;from.wp31mincost = from.wp30mincost;
1044         if (from.wp29mincost < c) {from.wp30 = to;from.wp30mincost = c;return;} from.wp30 = from.wp29;from.wp30mincost = from.wp29mincost;
1045         if (from.wp28mincost < c) {from.wp29 = to;from.wp29mincost = c;return;} from.wp29 = from.wp28;from.wp29mincost = from.wp28mincost;
1046         if (from.wp27mincost < c) {from.wp28 = to;from.wp28mincost = c;return;} from.wp28 = from.wp27;from.wp28mincost = from.wp27mincost;
1047         if (from.wp26mincost < c) {from.wp27 = to;from.wp27mincost = c;return;} from.wp27 = from.wp26;from.wp27mincost = from.wp26mincost;
1048         if (from.wp25mincost < c) {from.wp26 = to;from.wp26mincost = c;return;} from.wp26 = from.wp25;from.wp26mincost = from.wp25mincost;
1049         if (from.wp24mincost < c) {from.wp25 = to;from.wp25mincost = c;return;} from.wp25 = from.wp24;from.wp25mincost = from.wp24mincost;
1050         if (from.wp23mincost < c) {from.wp24 = to;from.wp24mincost = c;return;} from.wp24 = from.wp23;from.wp24mincost = from.wp23mincost;
1051         if (from.wp22mincost < c) {from.wp23 = to;from.wp23mincost = c;return;} from.wp23 = from.wp22;from.wp23mincost = from.wp22mincost;
1052         if (from.wp21mincost < c) {from.wp22 = to;from.wp22mincost = c;return;} from.wp22 = from.wp21;from.wp22mincost = from.wp21mincost;
1053         if (from.wp20mincost < c) {from.wp21 = to;from.wp21mincost = c;return;} from.wp21 = from.wp20;from.wp21mincost = from.wp20mincost;
1054         if (from.wp19mincost < c) {from.wp20 = to;from.wp20mincost = c;return;} from.wp20 = from.wp19;from.wp20mincost = from.wp19mincost;
1055         if (from.wp18mincost < c) {from.wp19 = to;from.wp19mincost = c;return;} from.wp19 = from.wp18;from.wp19mincost = from.wp18mincost;
1056         if (from.wp17mincost < c) {from.wp18 = to;from.wp18mincost = c;return;} from.wp18 = from.wp17;from.wp18mincost = from.wp17mincost;
1057         if (from.wp16mincost < c) {from.wp17 = to;from.wp17mincost = c;return;} from.wp17 = from.wp16;from.wp17mincost = from.wp16mincost;
1058         if (from.wp15mincost < c) {from.wp16 = to;from.wp16mincost = c;return;} from.wp16 = from.wp15;from.wp16mincost = from.wp15mincost;
1059         if (from.wp14mincost < c) {from.wp15 = to;from.wp15mincost = c;return;} from.wp15 = from.wp14;from.wp15mincost = from.wp14mincost;
1060         if (from.wp13mincost < c) {from.wp14 = to;from.wp14mincost = c;return;} from.wp14 = from.wp13;from.wp14mincost = from.wp13mincost;
1061         if (from.wp12mincost < c) {from.wp13 = to;from.wp13mincost = c;return;} from.wp13 = from.wp12;from.wp13mincost = from.wp12mincost;
1062         if (from.wp11mincost < c) {from.wp12 = to;from.wp12mincost = c;return;} from.wp12 = from.wp11;from.wp12mincost = from.wp11mincost;
1063         if (from.wp10mincost < c) {from.wp11 = to;from.wp11mincost = c;return;} from.wp11 = from.wp10;from.wp11mincost = from.wp10mincost;
1064         if (from.wp09mincost < c) {from.wp10 = to;from.wp10mincost = c;return;} from.wp10 = from.wp09;from.wp10mincost = from.wp09mincost;
1065         if (from.wp08mincost < c) {from.wp09 = to;from.wp09mincost = c;return;} from.wp09 = from.wp08;from.wp09mincost = from.wp08mincost;
1066         if (from.wp07mincost < c) {from.wp08 = to;from.wp08mincost = c;return;} from.wp08 = from.wp07;from.wp08mincost = from.wp07mincost;
1067         if (from.wp06mincost < c) {from.wp07 = to;from.wp07mincost = c;return;} from.wp07 = from.wp06;from.wp07mincost = from.wp06mincost;
1068         if (from.wp05mincost < c) {from.wp06 = to;from.wp06mincost = c;return;} from.wp06 = from.wp05;from.wp06mincost = from.wp05mincost;
1069         if (from.wp04mincost < c) {from.wp05 = to;from.wp05mincost = c;return;} from.wp05 = from.wp04;from.wp05mincost = from.wp04mincost;
1070         if (from.wp03mincost < c) {from.wp04 = to;from.wp04mincost = c;return;} from.wp04 = from.wp03;from.wp04mincost = from.wp03mincost;
1071         if (from.wp02mincost < c) {from.wp03 = to;from.wp03mincost = c;return;} from.wp03 = from.wp02;from.wp03mincost = from.wp02mincost;
1072         if (from.wp01mincost < c) {from.wp02 = to;from.wp02mincost = c;return;} from.wp02 = from.wp01;from.wp02mincost = from.wp01mincost;
1073         if (from.wp00mincost < c) {from.wp01 = to;from.wp01mincost = c;return;} from.wp01 = from.wp00;from.wp01mincost = from.wp00mincost;
1074         from.wp00 = to;from.wp00mincost = c;return;
1075 }
1076
1077 void waypoint_addlink(entity from, entity to)
1078 {
1079         if ((from.wpflags & WPFLAGMASK_NORELINK) && !(from.wpflags & (WAYPOINTFLAG_JUMP | WAYPOINTFLAG_SUPPORT)))
1080                 waypoint_addlink_for_custom_jumppad(from, to);
1081         else
1082                 waypoint_addlink_customcost(from, to, -1);
1083
1084         if (from.wpflags & WAYPOINTFLAG_SUPPORT)
1085                 to.SUPPORT_WP = from;
1086 }
1087
1088 // relink this spawnfunc_waypoint
1089 // (precompile a list of all reachable waypoints from this spawnfunc_waypoint)
1090 // (SLOW!)
1091 void waypoint_think(entity this)
1092 {
1093         vector sv = '0 0 0', sv2 = '0 0 0', ev = '0 0 0', ev2 = '0 0 0', dv;
1094         float sv2_height = 0, ev2_height = 0;
1095
1096         bot_calculate_stepheightvec();
1097
1098         int dphitcontentsmask_save = this.dphitcontentsmask;
1099         this.dphitcontentsmask = DPCONTENTS_SOLID | DPCONTENTS_BODY | DPCONTENTS_PLAYERCLIP | DPCONTENTS_BOTCLIP;
1100
1101         bot_navigation_movemode = ((autocvar_bot_navigation_ignoreplayers) ? MOVE_NOMONSTERS : MOVE_NORMAL);
1102
1103         //dprint("waypoint_think wpisbox = ", ftos(this.wpisbox), "\n");
1104         IL_EACH(g_waypoints, this != it,
1105         {
1106                 if (boxesoverlap(this.absmin, this.absmax, it.absmin, it.absmax))
1107                 {
1108                         if (!(this.wpflags & WPFLAGMASK_NORELINK))
1109                                 waypoint_addlink(this, it);
1110                         if (!(it.wpflags & WPFLAGMASK_NORELINK))
1111                                 waypoint_addlink(it, this);
1112                 }
1113                 else
1114                 {
1115                         ++relink_total;
1116                         if(!checkpvs(this.origin, it))
1117                         {
1118                                 ++relink_pvsculled;
1119                                 continue;
1120                         }
1121
1122                         sv = set_tracewalk_dest_2(this, it.origin);
1123                         sv2 = tracewalk_dest;
1124                         sv2_height = tracewalk_dest_height;
1125                         ev = set_tracewalk_dest_2(it, this.origin);
1126                         ev2 = tracewalk_dest;
1127                         ev2_height = tracewalk_dest_height;
1128
1129                         dv = ev - sv;
1130                         dv.z = 0;
1131                         int maxdist = 1050;
1132                         vector m1 = PL_MIN_CONST;
1133                         vector m2 = PL_MAX_CONST;
1134
1135                         if (this.wpflags & WAYPOINTFLAG_CROUCH || it.wpflags & WAYPOINTFLAG_CROUCH)
1136                         {
1137                                 m1 = PL_CROUCH_MIN_CONST;
1138                                 m2 = PL_CROUCH_MAX_CONST;
1139                                 // links from crouch wp to normal wp (and viceversa) are very short to avoid creating many links
1140                                 // that would be wasted due to rough travel cost calculation (the longer link is, the higher cost is)
1141                                 // links from crouch wp to crouch wp can be as long as normal links
1142                                 if (!(this.wpflags & WAYPOINTFLAG_CROUCH && it.wpflags & WAYPOINTFLAG_CROUCH))
1143                                         maxdist = 100;
1144                         }
1145
1146                         if (vdist(dv, >=, maxdist)) // max search distance in XY
1147                         {
1148                                 ++relink_lengthculled;
1149                                 continue;
1150                         }
1151
1152                         navigation_testtracewalk = 0;
1153
1154                         //traceline(this.origin, it.origin, false, NULL);
1155                         //if (trace_fraction == 1)
1156                         if (this.wpisbox || this.wpflags & (WAYPOINTFLAG_JUMP | WAYPOINTFLAG_SUPPORT) // forbid outgoing links
1157                                 || it.SUPPORT_WP) // forbid incoming links
1158                         {
1159                                 relink_walkculled += 0.5;
1160                         }
1161                         else
1162                         {
1163                                 if (tracewalk(this, sv, m1, m2, ev2, ev2_height, MOVE_NOMONSTERS))
1164                                         waypoint_addlink(this, it);
1165                                 else
1166                                         relink_walkculled += 0.5;
1167                         }
1168
1169                         // reverse direction
1170                         if (it.wpisbox || it.wpflags & (WAYPOINTFLAG_JUMP | WAYPOINTFLAG_SUPPORT) // forbid incoming links
1171                                 || this.SUPPORT_WP) // forbid outgoing links
1172                         {
1173                                 relink_walkculled += 0.5;
1174                         }
1175                         else
1176                         {
1177                                 if (tracewalk(this, ev, m1, m2, sv2, sv2_height, MOVE_NOMONSTERS))
1178                                         waypoint_addlink(it, this);
1179                                 else
1180                                         relink_walkculled += 0.5;
1181                         }
1182                 }
1183         });
1184         navigation_testtracewalk = 0;
1185         this.wplinked = true;
1186         this.dphitcontentsmask = dphitcontentsmask_save;
1187
1188         setthink(this, func_null);
1189         this.nextthink = 0;
1190 }
1191
1192 void waypoint_clearlinks(entity wp)
1193 {
1194         // clear links to other waypoints
1195         float f = 10000000;
1196         wp.wp00 = wp.wp01 = wp.wp02 = wp.wp03 = wp.wp04 = wp.wp05 = wp.wp06 = wp.wp07 = NULL;
1197         wp.wp08 = wp.wp09 = wp.wp10 = wp.wp11 = wp.wp12 = wp.wp13 = wp.wp14 = wp.wp15 = NULL;
1198         wp.wp16 = wp.wp17 = wp.wp18 = wp.wp19 = wp.wp20 = wp.wp21 = wp.wp22 = wp.wp23 = NULL;
1199         wp.wp24 = wp.wp25 = wp.wp26 = wp.wp27 = wp.wp28 = wp.wp29 = wp.wp30 = wp.wp31 = NULL;
1200
1201         wp.wp00mincost = wp.wp01mincost = wp.wp02mincost = wp.wp03mincost = wp.wp04mincost = wp.wp05mincost = wp.wp06mincost = wp.wp07mincost = f;
1202         wp.wp08mincost = wp.wp09mincost = wp.wp10mincost = wp.wp11mincost = wp.wp12mincost = wp.wp13mincost = wp.wp14mincost = wp.wp15mincost = f;
1203         wp.wp16mincost = wp.wp17mincost = wp.wp18mincost = wp.wp19mincost = wp.wp20mincost = wp.wp21mincost = wp.wp22mincost = wp.wp23mincost = f;
1204         wp.wp24mincost = wp.wp25mincost = wp.wp26mincost = wp.wp27mincost = wp.wp28mincost = wp.wp29mincost = wp.wp30mincost = wp.wp31mincost = f;
1205
1206         wp.wplinked = false;
1207 }
1208
1209 // tell a spawnfunc_waypoint to relink
1210 void waypoint_schedulerelink(entity wp)
1211 {
1212         if (wp == NULL)
1213                 return;
1214
1215         waypoint_setupmodel(wp);
1216         wp.wpisbox = vdist(wp.size, >, 0);
1217         wp.enemy = NULL;
1218         if (!(wp.wpflags & WAYPOINTFLAG_PERSONAL))
1219                 wp.owner = NULL;
1220         if (!(wp.wpflags & WPFLAGMASK_NORELINK))
1221                 waypoint_clearlinks(wp);
1222         // schedule an actual relink on next frame
1223         setthink(wp, waypoint_think);
1224         wp.nextthink = time;
1225         wp.effects = EF_LOWPRECISION;
1226 }
1227
1228 // spawnfunc_waypoint map entity
1229 spawnfunc(waypoint)
1230 {
1231         IL_PUSH(g_waypoints, this);
1232
1233         setorigin(this, this.origin);
1234         // schedule a relink after other waypoints have had a chance to spawn
1235         waypoint_clearlinks(this);
1236         //waypoint_schedulerelink(this);
1237 }
1238
1239 // tell all waypoints to relink
1240 // actually this is useful only to update relink_* stats
1241 void waypoint_schedulerelinkall()
1242 {
1243         relink_total = relink_walkculled = relink_pvsculled = relink_lengthculled = 0;
1244         IL_EACH(g_waypoints, true,
1245         {
1246                 waypoint_schedulerelink(it);
1247         });
1248         waypoint_load_hardwiredlinks();
1249 }
1250
1251 #define GET_GAMETYPE_EXTENSION() ((g_race) ? ".race" : "")
1252
1253 // Load waypoint links from file
1254 bool waypoint_load_links()
1255 {
1256         string s;
1257         float file, tokens, c = 0, found;
1258         entity wp_from = NULL, wp_to;
1259         vector wp_to_pos, wp_from_pos;
1260
1261         string gt_ext = GET_GAMETYPE_EXTENSION();
1262
1263         string filename = sprintf("maps/%s.waypoints.cache", strcat(mapname, gt_ext));
1264         file = fopen(filename, FILE_READ);
1265
1266         if (gt_ext != "" && file < 0)
1267         {
1268                 // if race waypoint file doesn't exist load the default one
1269                 filename = sprintf("maps/%s.waypoints.cache", mapname);
1270                 file = fopen(filename, FILE_READ);
1271         }
1272
1273         if (file < 0)
1274         {
1275                 LOG_TRACE("waypoint links load from ", filename, " failed");
1276                 waypoint_schedulerelinkall();
1277                 return false;
1278         }
1279
1280         bool parse_comments = true;
1281         float ver = 0;
1282         string links_time = string_null;
1283
1284         while ((s = fgets(file)))
1285         {
1286                 if(parse_comments)
1287                 {
1288                         if(substring(s, 0, 2) == "//")
1289                         {
1290                                 if(substring(s, 2, 17) == "WAYPOINT_VERSION ")
1291                                         ver = stof(substring(s, 19, -1));
1292                                 else if(substring(s, 2, 14) == "WAYPOINT_TIME ")
1293                                         links_time = substring(s, 16, -1);
1294                                 continue;
1295                         }
1296                         else
1297                         {
1298                                 if(ver < WAYPOINT_VERSION || links_time != waypoint_time)
1299                                 {
1300                                         if (links_time != waypoint_time)
1301                                                 LOG_TRACE("waypoint links for this map are not made for these waypoints.");
1302                                         else
1303                                                 LOG_TRACE("waypoint links for this map are outdated.");
1304                                         if (g_assault)
1305                                         {
1306                                                 LOG_TRACE("Assault waypoint links need to be manually updated in the editor");
1307                                         }
1308                                         else
1309                                         {
1310                                                 LOG_TRACE("automatically updating...");
1311                                                 waypoint_schedulerelinkall();
1312                                                 fclose(file);
1313                                                 return false;
1314                                         }
1315                                 }
1316                                 parse_comments = false;
1317                         }
1318                 }
1319
1320                 tokens = tokenizebyseparator(s, "*");
1321
1322                 if (tokens!=2)
1323                 {
1324                         // bad file format
1325                         fclose(file);
1326                         waypoint_schedulerelinkall(); // link all the autogenerated waypoints (teleporters)
1327                         return false;
1328                 }
1329
1330                 wp_from_pos     = stov(argv(0));
1331                 wp_to_pos       = stov(argv(1));
1332
1333                 // Search "from" waypoint
1334                 if(!wp_from || wp_from.origin!=wp_from_pos)
1335                 {
1336                         wp_from = findradius(wp_from_pos, 1);
1337                         found = false;
1338                         while(wp_from)
1339                         {
1340                                 if(vdist(wp_from.origin - wp_from_pos, <, 1))
1341                                 if(wp_from.classname == "waypoint")
1342                                 {
1343                                         found = true;
1344                                         break;
1345                                 }
1346                                 wp_from = wp_from.chain;
1347                         }
1348
1349                         if(!found)
1350                         {
1351                                 LOG_TRACE("waypoint_load_links: couldn't find 'from' waypoint at ", vtos(wp_from_pos));
1352                                 continue;
1353                         }
1354                 }
1355
1356                 // Search "to" waypoint
1357                 wp_to = findradius(wp_to_pos, 1);
1358                 found = false;
1359                 while(wp_to)
1360                 {
1361                         if(vdist(wp_to.origin - wp_to_pos, <, 1))
1362                         if(wp_to.classname == "waypoint")
1363                         {
1364                                 found = true;
1365                                 break;
1366                         }
1367                         wp_to = wp_to.chain;
1368                 }
1369
1370                 if(!found)
1371                 {
1372                         LOG_TRACE("waypoint_load_links: couldn't find 'to' waypoint at ", vtos(wp_to_pos));
1373                         continue;
1374                 }
1375
1376                 ++c;
1377                 waypoint_addlink(wp_from, wp_to);
1378                 if (wp_from.wp00_original && wp_from.wp00_original != wp_from.wp00)
1379                         wp_from.wpflags |= WAYPOINTFLAG_CUSTOM_JP;
1380         }
1381
1382         fclose(file);
1383
1384         LOG_TRACE("loaded ", ftos(c), " waypoint links from ", filename);
1385
1386         bool scheduled = false;
1387         IL_EACH(g_waypoints, it.wpflags & WAYPOINTFLAG_ITEM,
1388         {
1389                 if (!it.wp00)
1390                 {
1391                         waypoint_schedulerelink(it);
1392                         scheduled = true;
1393                 }
1394         });
1395         if (scheduled)
1396                 return false;
1397
1398         botframe_cachedwaypointlinks = true;
1399         return true;
1400 }
1401
1402 void waypoint_load_hardwiredlinks()
1403 {
1404         string s;
1405         float file, tokens, c = 0, found;
1406         entity wp_from = NULL, wp_to;
1407         vector wp_to_pos, wp_from_pos;
1408
1409         string gt_ext = GET_GAMETYPE_EXTENSION();
1410
1411         string filename = sprintf("maps/%s.waypoints.hardwired", strcat(mapname, gt_ext));
1412         file = fopen(filename, FILE_READ);
1413
1414         if (gt_ext != "" && file < 0)
1415         {
1416                 // if race waypoint file doesn't exist load the default one
1417                 filename = sprintf("maps/%s.waypoints.hardwired", mapname);
1418                 file = fopen(filename, FILE_READ);
1419         }
1420
1421         botframe_loadedforcedlinks = true;
1422
1423         if (file < 0)
1424         {
1425                 LOG_TRACE("waypoint links load from ", filename, " failed");
1426                 return;
1427         }
1428
1429         bool is_special = false;
1430         while ((s = fgets(file)))
1431         {
1432                 if(substring(s, 0, 2)=="//")
1433                         continue;
1434
1435                 if(substring(s, 0, 1)=="#")
1436                         continue;
1437
1438                 // special links start with *, so old xonotic versions don't load them
1439                 is_special = false;
1440                 if (substring(s, 0, 1) == "*")
1441                 {
1442                         is_special = true;
1443                         s = substring(s, 1, -1);
1444                 }
1445
1446                 tokens = tokenizebyseparator(s, "*");
1447
1448                 if (tokens!=2)
1449                         continue;
1450
1451                 wp_from_pos     = stov(argv(0));
1452                 wp_to_pos       = stov(argv(1));
1453
1454                 // Search "from" waypoint
1455                 if(!wp_from || wp_from.origin!=wp_from_pos)
1456                 {
1457                         wp_from = findradius(wp_from_pos, 5);
1458                         found = false;
1459                         while(wp_from)
1460                         {
1461                                 if(vdist(wp_from.origin - wp_from_pos, <, 5))
1462                                 if(wp_from.classname == "waypoint")
1463                                 {
1464                                         found = true;
1465                                         break;
1466                                 }
1467                                 wp_from = wp_from.chain;
1468                         }
1469
1470                         if(!found)
1471                         {
1472                                 LOG_INFO("NOTICE: Can not find origin waypoint for the hardwired link ", s, ". Path skipped");
1473                                 continue;
1474                         }
1475                 }
1476
1477                 // Search "to" waypoint
1478                 wp_to = findradius(wp_to_pos, 5);
1479                 found = false;
1480                 while(wp_to)
1481                 {
1482                         if(vdist(wp_to.origin - wp_to_pos, <, 5))
1483                         if(wp_to.classname == "waypoint")
1484                         {
1485                                 found = true;
1486                                 break;
1487                         }
1488                         wp_to = wp_to.chain;
1489                 }
1490
1491                 if(!found)
1492                 {
1493                         LOG_INFO("NOTICE: Can not find destination waypoint for the hardwired link ", s, ". Path skipped");
1494                         continue;
1495                 }
1496
1497                 ++c;
1498
1499                 if (!is_special)
1500                 {
1501                         waypoint_addlink(wp_from, wp_to);
1502                         waypoint_mark_hardwiredlink(wp_from, wp_to);
1503                 } else if (wp_from.wpflags & WPFLAGMASK_NORELINK
1504                         && (wp_from.wpflags & (WAYPOINTFLAG_JUMP | WAYPOINTFLAG_SUPPORT)
1505                                 || (wp_from.wpisbox && wp_from.wpflags & WAYPOINTFLAG_TELEPORT)))
1506                 {
1507                         waypoint_addlink(wp_from, wp_to);
1508                 }
1509         }
1510
1511         fclose(file);
1512
1513         LOG_TRACE("loaded ", ftos(c), " waypoint links from maps/", mapname, ".waypoints.hardwired");
1514 }
1515
1516 entity waypoint_get_link(entity w, float i)
1517 {
1518         switch(i)
1519         {
1520                 case  0:return w.wp00;
1521                 case  1:return w.wp01;
1522                 case  2:return w.wp02;
1523                 case  3:return w.wp03;
1524                 case  4:return w.wp04;
1525                 case  5:return w.wp05;
1526                 case  6:return w.wp06;
1527                 case  7:return w.wp07;
1528                 case  8:return w.wp08;
1529                 case  9:return w.wp09;
1530                 case 10:return w.wp10;
1531                 case 11:return w.wp11;
1532                 case 12:return w.wp12;
1533                 case 13:return w.wp13;
1534                 case 14:return w.wp14;
1535                 case 15:return w.wp15;
1536                 case 16:return w.wp16;
1537                 case 17:return w.wp17;
1538                 case 18:return w.wp18;
1539                 case 19:return w.wp19;
1540                 case 20:return w.wp20;
1541                 case 21:return w.wp21;
1542                 case 22:return w.wp22;
1543                 case 23:return w.wp23;
1544                 case 24:return w.wp24;
1545                 case 25:return w.wp25;
1546                 case 26:return w.wp26;
1547                 case 27:return w.wp27;
1548                 case 28:return w.wp28;
1549                 case 29:return w.wp29;
1550                 case 30:return w.wp30;
1551                 case 31:return w.wp31;
1552                 default:return NULL;
1553         }
1554 }
1555
1556 // Save all hardwired waypoint links to a file
1557 void waypoint_save_hardwiredlinks()
1558 {
1559         string gt_ext = GET_GAMETYPE_EXTENSION();
1560
1561         string filename = sprintf("maps/%s.waypoints.hardwired", strcat(mapname, gt_ext));
1562         int file = fopen(filename, FILE_WRITE);
1563         if (file < 0)
1564         {
1565                 LOG_TRACE("waypoint hardwired links ", filename, " creation failed");
1566                 return;
1567         }
1568
1569         // write hardwired links to file
1570         int count = 0;
1571         fputs(file, "// HARDWIRED LINKS\n");
1572         IL_EACH(g_waypoints, waypoint_has_hardwiredlinks(it),
1573         {
1574                 for (int j = 0; j < 32; ++j)
1575                 {
1576                         entity link = waypoint_get_link(it, j);
1577                         if (waypoint_is_hardwiredlink(it, link))
1578                         {
1579                                 // NOTE: vtos rounds vector components to 1 decimal place
1580                                 string s = strcat(vtos(it.origin), "*", vtos(link.origin), "\n");
1581                                 fputs(file, s);
1582                                 ++count;
1583                         }
1584                 }
1585         });
1586
1587         // write special links to file
1588         int count2 = 0;
1589         fputs(file, "\n// SPECIAL LINKS\n");
1590         IL_EACH(g_waypoints, it.wpflags & (WAYPOINTFLAG_JUMP | WAYPOINTFLAG_SUPPORT | WAYPOINTFLAG_CUSTOM_JP),
1591         {
1592                 for (int j = 0; j < 32; ++j)
1593                 {
1594                         entity link = waypoint_get_link(it, j);
1595                         if (link)
1596                         {
1597                                 // NOTE: vtos rounds vector components to 1 decimal place
1598                                 string s = strcat("*", vtos(it.origin), "*", vtos(link.origin), "\n");
1599                                 fputs(file, s);
1600                                 ++count2;
1601                         }
1602                 }
1603         });
1604
1605         fclose(file);
1606
1607         LOG_INFOF("saved %d hardwired links and %d special links to %s", count, count2, filename);
1608 }
1609
1610 // Save all waypoint links to a file
1611 void waypoint_save_links()
1612 {
1613         string gt_ext = GET_GAMETYPE_EXTENSION();
1614
1615         string filename = sprintf("maps/%s.waypoints.cache", strcat(mapname, gt_ext));
1616         int file = fopen(filename, FILE_WRITE);
1617         if (file < 0)
1618         {
1619                 LOG_INFOF("waypoint link save to %s failed", filename);
1620                 return;
1621         }
1622
1623         fputs(file, strcat("//", "WAYPOINT_VERSION ", ftos_decimals(WAYPOINT_VERSION, 2), "\n"));
1624         if (waypoint_time != "")
1625                 fputs(file, strcat("//", "WAYPOINT_TIME ", waypoint_time, "\n"));
1626
1627         int c = 0;
1628         IL_EACH(g_waypoints, !(it.wpflags & (WAYPOINTFLAG_JUMP | WAYPOINTFLAG_SUPPORT | WAYPOINTFLAG_CUSTOM_JP)),
1629         {
1630                 for(int j = 0; j < 32; ++j)
1631                 {
1632                         entity link = waypoint_get_link(it, j);
1633                         if (link && !waypoint_is_hardwiredlink(it, link))
1634                         {
1635                                 // NOTE: vtos rounds vector components to 1 decimal place
1636                                 string s = strcat(vtos(it.origin), "*", vtos(link.origin), "\n");
1637                                 fputs(file, s);
1638                                 ++c;
1639                         }
1640                 }
1641         });
1642         fclose(file);
1643
1644         botframe_cachedwaypointlinks = true;
1645
1646         LOG_INFOF("saved %d waypoint links to %s", c, filename);
1647 }
1648
1649 // save waypoints to gamedir/data/maps/mapname.waypoints
1650 void waypoint_saveall()
1651 {
1652         if (WAYPOINT_VERSION < waypoint_version_loaded)
1653         {
1654                 LOG_INFOF("^1Overwriting waypoints with a higher version number (%f) is not allowed.\n"
1655                         "Update Xonotic to make them editable.", waypoint_version_loaded);
1656                 return;
1657         }
1658         string gt_ext = GET_GAMETYPE_EXTENSION();
1659
1660         string filename = sprintf("maps/%s.waypoints", strcat(mapname, gt_ext));
1661         int file = fopen(filename, FILE_WRITE);
1662         if (file < 0)
1663         {
1664                 waypoint_save_links(); // save anyway?
1665                 botframe_loadedforcedlinks = false;
1666
1667                 LOG_INFOF("waypoint links: save to %s failed", filename);
1668                 return;
1669         }
1670
1671         float sym = autocvar_g_waypointeditor_symmetrical;
1672         string sym_str = ftos(sym);
1673         if (sym == -1 || (sym == 1 && autocvar_g_waypointeditor_symmetrical_order >= 2))
1674         {
1675                 if (sym == 1)
1676                 {
1677                         sym_str = cons(sym_str, "-");
1678                         sym_str = cons(sym_str, "-");
1679                 }
1680                 else
1681                 {
1682                         sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_origin.x));
1683                         sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_origin.y));
1684                 }
1685                 if (autocvar_g_waypointeditor_symmetrical_order >= 2)
1686                         sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_order));
1687         }
1688         else if (autocvar_g_waypointeditor_symmetrical == -2)
1689         {
1690                 sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_axis.x));
1691                 sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_axis.y));
1692         }
1693
1694         // a group of 3 comments doesn't break compatibility with older Xonotic versions
1695         // (they are read as a waypoint with origin '0 0 0' and flag 0 though)
1696         fputs(file, strcat("//", "WAYPOINT_VERSION ", ftos_decimals(WAYPOINT_VERSION, 2), "\n"));
1697         fputs(file, strcat("//", "WAYPOINT_SYMMETRY ", sym_str, "\n"));
1698
1699         strcpy(waypoint_time, strftime(true, "%Y-%m-%d %H:%M:%S"));
1700         fputs(file, strcat("//", "WAYPOINT_TIME ", waypoint_time, "\n"));
1701         //fputs(file, strcat("//", "\n"));
1702         //fputs(file, strcat("//", "\n"));
1703         //fputs(file, strcat("//", "\n"));
1704
1705         int c = 0;
1706         IL_EACH(g_waypoints, true,
1707         {
1708                 if(it.wpflags & WAYPOINTFLAG_GENERATED)
1709                         continue;
1710
1711                 string s;
1712                 // NOTE: vtos rounds vector components to 1 decimal place
1713                 s = strcat(vtos(it.origin + it.mins), "\n");
1714                 s = strcat(s, vtos(it.origin + it.maxs));
1715                 s = strcat(s, "\n");
1716                 s = strcat(s, ftos(it.wpflags));
1717                 s = strcat(s, "\n");
1718                 fputs(file, s);
1719                 c++;
1720         });
1721         fclose(file);
1722         waypoint_save_links();
1723         waypoint_save_hardwiredlinks();
1724
1725         botframe_loadedforcedlinks = false;
1726
1727         waypoint_version_loaded = WAYPOINT_VERSION;
1728         LOG_INFOF("saved %d waypoints to %s", c, filename);
1729 }
1730
1731 // load waypoints from file
1732 float waypoint_loadall()
1733 {
1734         string s;
1735         int file, cwp, cwb, fl;
1736         vector m1, m2;
1737         cwp = 0;
1738         cwb = 0;
1739
1740         string gt_ext = GET_GAMETYPE_EXTENSION();
1741
1742         string filename = sprintf("maps/%s.waypoints", strcat(mapname, gt_ext));
1743         file = fopen(filename, FILE_READ);
1744
1745         if (gt_ext != "" && file < 0)
1746         {
1747                 // if race waypoint file doesn't exist load the default one
1748                 filename = sprintf("maps/%s.waypoints", mapname);
1749                 file = fopen(filename, FILE_READ);
1750         }
1751
1752         if (file < 0)
1753         {
1754                 LOG_TRACE("waypoint load from ", filename, " failed");
1755                 return 0;
1756         }
1757
1758         bool parse_comments = true;
1759         float ver = 0;
1760         float sym = 0;
1761         float sym_param1 = 0, sym_param2 = 0, sym_param3 = 0;
1762
1763         while ((s = fgets(file)))
1764         {
1765                 if(parse_comments)
1766                 {
1767                         if(substring(s, 0, 2) == "//")
1768                         {
1769                                 if(substring(s, 2, 17) == "WAYPOINT_VERSION ")
1770                                         ver = stof(substring(s, 19, -1));
1771                                 else if(substring(s, 2, 18) == "WAYPOINT_SYMMETRY ")
1772                                 {
1773                                         int tokens = tokenizebyseparator(substring(s, 20, -1), " ");
1774                                         if (tokens) { sym = stof(argv(0)); }
1775                                         if (tokens > 1) { sym_param1 = stof(argv(1)); }
1776                                         if (tokens > 2) { sym_param2 = stof(argv(2)); }
1777                                         if (tokens > 3) { sym_param3 = stof(argv(3)); }
1778                                 }
1779                                 else if(substring(s, 2, 14) == "WAYPOINT_TIME ")
1780                                         strcpy(waypoint_time, substring(s, 16, -1));
1781                                 continue;
1782                         }
1783                         else
1784                         {
1785                                 if(floor(ver) < floor(WAYPOINT_VERSION))
1786                                 {
1787                                         LOG_TRACE("waypoints for this map are outdated");
1788                                         LOG_TRACE("please update them in the editor");
1789                                 }
1790                                 parse_comments = false;
1791                         }
1792                 }
1793                 m1 = stov(s);
1794                 s = fgets(file);
1795                 if (!s)
1796                         break;
1797                 m2 = stov(s);
1798                 s = fgets(file);
1799                 if (!s)
1800                         break;
1801                 fl = stof(s);
1802                 if (fl & WAYPOINTFLAG_NORELINK__DEPRECATED)
1803                         fl &= ~WAYPOINTFLAG_NORELINK__DEPRECATED;
1804                 waypoint_spawn(m1, m2, fl);
1805                 if (m1 == m2)
1806                         cwp = cwp + 1;
1807                 else
1808                         cwb = cwb + 1;
1809         }
1810         fclose(file);
1811         waypoint_version_loaded = ver;
1812         LOG_TRACE("loaded ", ftos(cwp), " waypoints and ", ftos(cwb), " wayboxes from maps/", mapname, ".waypoints");
1813
1814         if (autocvar_g_waypointeditor && autocvar_g_waypointeditor_symmetrical_allowload)
1815         {
1816                 cvar_set("g_waypointeditor_symmetrical", ftos(sym));
1817                 if (sym == 1 && sym_param3 < 2)
1818                         cvar_set("g_waypointeditor_symmetrical_order", "0"); // make sure this is reset if not loaded
1819                 if (sym == -1 || (sym == 1 && sym_param3 >= 2))
1820                 {
1821                         string params;
1822                         if (sym == 1)
1823                                 params = cons("-", "-");
1824                         else
1825                         {
1826                                 params = cons(ftos(sym_param1), ftos(sym_param2));
1827                                 cvar_set("g_waypointeditor_symmetrical_origin", params);
1828                         }
1829                         cvar_set("g_waypointeditor_symmetrical_order", ftos(sym_param3));
1830                         LOG_INFO("Waypoint editor: loaded symmetry ", ftos(sym), " with origin ", params, " and order ", ftos(sym_param3));
1831                 }
1832                 else if (sym == -2)
1833                 {
1834                         string params = strcat(ftos(sym_param1), " ", ftos(sym_param2));
1835                         cvar_set("g_waypointeditor_symmetrical_axis", params);
1836                         LOG_INFO("Waypoint editor: loaded symmetry ", ftos(sym), " with axis ", params);
1837                 }
1838                 else
1839                         LOG_INFO("Waypoint editor: loaded symmetry ", ftos(sym));
1840                 LOG_INFO(strcat("g_waypointeditor_symmetrical", " has been set to ", cvar_string("g_waypointeditor_symmetrical")));
1841         }
1842
1843         if (WAYPOINT_VERSION < waypoint_version_loaded)
1844                 LOG_INFOF("^1Editing waypoints with a higher version number (%f) is not allowed.\n"
1845                         "Update Xonotic to make them editable.", waypoint_version_loaded);
1846
1847         return cwp + cwb;
1848 }
1849
1850 #define waypoint_fixorigin(position, tracetest_ent) \
1851         waypoint_fixorigin_down_dir(position, tracetest_ent, '0 0 -1')
1852
1853 vector waypoint_fixorigin_down_dir(vector position, entity tracetest_ent, vector down_dir)
1854 {
1855         vector endpos = position + down_dir * 3000;
1856         tracebox(position + '0 0 1', PL_MIN_CONST, PL_MAX_CONST, endpos, MOVE_NOMONSTERS, tracetest_ent);
1857         if(trace_startsolid)
1858                 tracebox(position + '0 0 1' * (1 - PL_MIN_CONST.z / 2), PL_MIN_CONST, PL_MAX_CONST, endpos, MOVE_NOMONSTERS, tracetest_ent);
1859         if(trace_startsolid)
1860                 tracebox(position + '0 0 1' * (1 - PL_MIN_CONST.z), PL_MIN_CONST, PL_MAX_CONST, endpos, MOVE_NOMONSTERS, tracetest_ent);
1861         if(trace_fraction < 1)
1862                 position = trace_endpos;
1863         return position;
1864 }
1865
1866 void waypoint_spawnforitem_force(entity e, vector org)
1867 {
1868         // Fix the waypoint altitude if necessary
1869         org = waypoint_fixorigin(org, NULL);
1870
1871         // don't spawn an item spawnfunc_waypoint if it already exists
1872         IL_EACH(g_waypoints, true,
1873         {
1874                 if(it.wpisbox)
1875                 {
1876                         if(boxesoverlap(org, org, it.absmin, it.absmax))
1877                         {
1878                                 e.nearestwaypoint = it;
1879                                 return;
1880                         }
1881                 }
1882                 else
1883                 {
1884                         if(vdist(it.origin - org, <, 16))
1885                         {
1886                                 e.nearestwaypoint = it;
1887                                 return;
1888                         }
1889                 }
1890         });
1891
1892         e.nearestwaypoint = waypoint_spawn(org, org, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_ITEM);
1893 }
1894
1895 void waypoint_spawnforitem(entity e)
1896 {
1897         if(!bot_waypoints_for_items)
1898                 return;
1899
1900         waypoint_spawnforitem_force(e, e.origin);
1901 }
1902
1903 void waypoint_spawnforteleporter_boxes(entity e, int teleport_flag, vector org1, vector org2, vector destination1, vector destination2, float timetaken)
1904 {
1905         entity w;
1906         entity dw;
1907         w = waypoint_spawn(org1, org2, WAYPOINTFLAG_GENERATED | teleport_flag);
1908         dw = waypoint_spawn(destination1, destination2, WAYPOINTFLAG_GENERATED);
1909         // one way link to the destination
1910         w.wp00_original = dw;
1911         w.wp00 = dw;
1912         w.wp00mincost = timetaken; // this is just for jump pads
1913         // the teleporter's nearest spawnfunc_waypoint is this one
1914         // (teleporters are not goals, so this is probably useless)
1915         e.nearestwaypoint = w;
1916         e.nearestwaypointtimeout = -1;
1917 }
1918
1919 void waypoint_spawnforteleporter_wz(entity e, entity tracetest_ent)
1920 {
1921         float src_angle = e.warpzone_angles.x;
1922         while (src_angle < -180) src_angle += 360;
1923         while (src_angle > 180) src_angle -= 360;
1924
1925         float dest_angle = e.enemy.warpzone_angles.x;
1926         while (dest_angle < -180) dest_angle += 360;
1927         while (dest_angle > 180) dest_angle -= 360;
1928
1929         // no waypoints for warpzones pointing upwards, they can't be used by the bots
1930         if (src_angle == -90 || dest_angle == -90)
1931                 return;
1932
1933         makevectors(e.warpzone_angles);
1934         vector src = (e.absmin + e.absmax) * 0.5;
1935         src += ((e.warpzone_origin - src) * v_forward) * v_forward + 16 * v_right;
1936         vector down_dir_src = -v_up;
1937
1938         makevectors(e.enemy.warpzone_angles);
1939         vector dest = (e.enemy.absmin + e.enemy.absmax) * 0.5;
1940         dest += ((e.enemy.warpzone_origin - dest) * v_forward) * v_forward - 16 * v_right;
1941         vector down_dir_dest = -v_up;
1942
1943         int extra_flag = 0;
1944         // don't snap to the ground waypoints for source warpzones pointing downwards
1945         if (src_angle != 90)
1946         {
1947                 src = waypoint_fixorigin_down_dir(src, tracetest_ent, down_dir_src);
1948                 dest = waypoint_fixorigin_down_dir(dest, tracetest_ent, down_dir_dest);
1949                 // oblique warpzones need a jump otherwise bots gets stuck
1950                 if (src_angle != 0)
1951                         extra_flag = WAYPOINTFLAG_JUMP;
1952         }
1953
1954         waypoint_spawnforteleporter_boxes(e, WAYPOINTFLAG_TELEPORT | extra_flag, src, src, dest, dest, 0);
1955 }
1956
1957 void waypoint_spawnforteleporter(entity e, vector destination, float timetaken, entity tracetest_ent)
1958 {
1959         destination = waypoint_fixorigin(destination, tracetest_ent);
1960         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);
1961 }
1962
1963 entity waypoint_spawnpersonal(entity this, vector position)
1964 {
1965         entity w;
1966
1967         // drop the waypoint to a proper location:
1968         //   first move it up by a player height
1969         //   then move it down to hit the floor with player bbox size
1970         position = waypoint_fixorigin(position, this);
1971
1972         w = waypoint_spawn(position, position, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_PERSONAL);
1973         w.nearestwaypoint = NULL;
1974         w.nearestwaypointtimeout = 0;
1975         w.owner = this;
1976
1977         waypoint_schedulerelink(w);
1978
1979         return w;
1980 }
1981
1982 void waypoint_showlink(entity wp1, entity wp2, int display_type)
1983 {
1984         if (!(wp1 && wp2))
1985                 return;
1986
1987         if (waypoint_is_hardwiredlink(wp1, wp2) || wp1.wpflags & (WAYPOINTFLAG_JUMP | WAYPOINTFLAG_SUPPORT | WAYPOINTFLAG_CUSTOM_JP))
1988                 te_beam(NULL, wp1.origin, wp2.origin);
1989         else if (display_type == 1)
1990                 te_lightning2(NULL, wp1.origin, wp2.origin);
1991 }
1992
1993 void waypoint_showlinks_to(entity wp, int display_type)
1994 {
1995         IL_EACH(g_waypoints, it != wp,
1996         {
1997                 if (waypoint_islinked(it, wp))
1998                         waypoint_showlink(it, wp, display_type);
1999         });
2000 }
2001
2002 void waypoint_showlinks_from(entity wp, int display_type)
2003 {
2004         waypoint_showlink(wp, wp.wp00, display_type); waypoint_showlink(wp, wp.wp16, display_type);
2005         waypoint_showlink(wp, wp.wp01, display_type); waypoint_showlink(wp, wp.wp17, display_type);
2006         waypoint_showlink(wp, wp.wp02, display_type); waypoint_showlink(wp, wp.wp18, display_type);
2007         waypoint_showlink(wp, wp.wp03, display_type); waypoint_showlink(wp, wp.wp19, display_type);
2008         waypoint_showlink(wp, wp.wp04, display_type); waypoint_showlink(wp, wp.wp20, display_type);
2009         waypoint_showlink(wp, wp.wp05, display_type); waypoint_showlink(wp, wp.wp21, display_type);
2010         waypoint_showlink(wp, wp.wp06, display_type); waypoint_showlink(wp, wp.wp22, display_type);
2011         waypoint_showlink(wp, wp.wp07, display_type); waypoint_showlink(wp, wp.wp23, display_type);
2012         waypoint_showlink(wp, wp.wp08, display_type); waypoint_showlink(wp, wp.wp24, display_type);
2013         waypoint_showlink(wp, wp.wp09, display_type); waypoint_showlink(wp, wp.wp25, display_type);
2014         waypoint_showlink(wp, wp.wp10, display_type); waypoint_showlink(wp, wp.wp26, display_type);
2015         waypoint_showlink(wp, wp.wp11, display_type); waypoint_showlink(wp, wp.wp27, display_type);
2016         waypoint_showlink(wp, wp.wp12, display_type); waypoint_showlink(wp, wp.wp28, display_type);
2017         waypoint_showlink(wp, wp.wp13, display_type); waypoint_showlink(wp, wp.wp29, display_type);
2018         waypoint_showlink(wp, wp.wp14, display_type); waypoint_showlink(wp, wp.wp30, display_type);
2019         waypoint_showlink(wp, wp.wp15, display_type); waypoint_showlink(wp, wp.wp31, display_type);
2020 }
2021
2022 void crosshair_trace_waypoints(entity pl)
2023 {
2024         IL_EACH(g_waypoints, true, {
2025                 it.solid = SOLID_BSP;
2026                 if (!it.wpisbox)
2027                         setsize(it, '-16 -16 -16', '16 16 16');
2028         });
2029
2030         crosshair_trace(pl);
2031
2032         IL_EACH(g_waypoints, true, {
2033                 it.solid = SOLID_TRIGGER;
2034                 if (!it.wpisbox)
2035                         setsize(it, '0 0 0', '0 0 0');
2036         });
2037         if (trace_ent.classname != "waypoint")
2038                 trace_ent = NULL;
2039 }
2040
2041 void botframe_showwaypointlinks()
2042 {
2043         if (time < botframe_waypointeditorlightningtime)
2044                 return;
2045         botframe_waypointeditorlightningtime = time + 0.5;
2046         FOREACH_CLIENT(IS_PLAYER(it) && !it.isbot,
2047         {
2048                 int display_type = 0;
2049                 if (wasfreed(it.wp_aimed))
2050                         it.wp_aimed = NULL;
2051                 if (wasfreed(it.wp_locked))
2052                         it.wp_locked = NULL;
2053                 if (PHYS_INPUT_BUTTON_USE(it))
2054                         it.wp_locked = it.wp_aimed;
2055                 entity head = it.wp_locked;
2056                 if (!head)
2057                         head = navigation_findnearestwaypoint(it, false);
2058                 it.nearestwaypoint = head; // mainly useful for debug
2059                 it.nearestwaypointtimeout = time + 2; // while I'm at it...
2060                 if (IS_ONGROUND(it) || it.waterlevel > WATERLEVEL_NONE || it.wp_locked)
2061                         display_type = 1; // default
2062                 else if(waypoint_has_hardwiredlinks(head))
2063                         display_type = 2; // only hardwired
2064
2065                 if (display_type)
2066                 {
2067                         //navigation_testtracewalk = true;
2068                         //print("currently selected WP is ", etos(head), "\n");
2069                         //navigation_testtracewalk = false;
2070                         if (head)
2071                         {
2072                                 te_lightning2(NULL, head.origin, it.origin);
2073                                 if(PHYS_INPUT_BUTTON_CROUCH(it))
2074                                         waypoint_showlinks_to(head, display_type);
2075                                 else
2076                                         waypoint_showlinks_from(head, display_type);
2077                         }
2078                 }
2079                 string str;
2080                 entity wp = NULL;
2081                 if (vdist(vec2(it.velocity), <, autocvar_sv_maxspeed * 1.1))
2082                 {
2083                         crosshair_trace_waypoints(it);
2084                         if (trace_ent)
2085                         {
2086                                 wp = trace_ent;
2087                                 if (wp != it.wp_aimed)
2088                                 {
2089                                         string wp_type_str = waypoint_get_type_name(wp);
2090                                         str = sprintf("\necho Entity %d: %s^7, flags: %d, origin: %s\n", etof(wp), wp_type_str, wp.wpflags, vtos(wp.origin));
2091                                         if (wp.wpisbox)
2092                                                 str = strcat(str, sprintf("echo \" absmin: %s, absmax: %s\"\n", vtos(wp.absmin), vtos(wp.absmax)));
2093                                         stuffcmd(it, str);
2094                                         str = sprintf("Entity %d: %s^7\nflags: %d\norigin: %s", etof(wp), wp_type_str, wp.wpflags, vtos(wp.origin));
2095                                         if (wp.wpisbox)
2096                                                 str = strcat(str, sprintf(" \nabsmin: %s\nabsmax: %s", vtos(wp.absmin), vtos(wp.absmax)));
2097                                         debug_text_3d(wp.origin, str, 0, 7, '0 0 0');
2098                                 }
2099                         }
2100                 }
2101                 if (it.wp_aimed != wp)
2102                         it.wp_aimed = wp;
2103         });
2104 }
2105
2106 float botframe_autowaypoints_fixdown(vector v)
2107 {
2108         tracebox(v, PL_MIN_CONST, PL_MAX_CONST, v + '0 0 -64', MOVE_NOMONSTERS, NULL);
2109         if(trace_fraction >= 1)
2110                 return 0;
2111         return 1;
2112 }
2113
2114 float botframe_autowaypoints_createwp(vector v, entity p, .entity fld, float f)
2115 {
2116         IL_EACH(g_waypoints, boxesoverlap(v - '32 32 32', v + '32 32 32', it.absmin, it.absmax),
2117         {
2118                 // if a matching spawnfunc_waypoint already exists, don't add a duplicate
2119                 return 0;
2120         });
2121
2122         waypoint_schedulerelink(p.(fld) = waypoint_spawn(v, v, f));
2123         return 1;
2124 }
2125
2126 // return value:
2127 //    1 = WP created
2128 //    0 = no action needed
2129 //   -1 = temp fail, try from world too
2130 //   -2 = permanent fail, do not retry
2131 float botframe_autowaypoints_fix_from(entity p, float walkfromwp, entity wp, .entity fld)
2132 {
2133         // make it possible to go from p to wp, if we can
2134         // if wp is NULL, nearest is chosen
2135
2136         entity w;
2137         vector porg;
2138         float t, tmin, tmax;
2139         vector o;
2140         vector save;
2141
2142         if(!botframe_autowaypoints_fixdown(p.origin))
2143                 return -2;
2144         porg = trace_endpos;
2145
2146         if(wp)
2147         {
2148                 // if any WP w fulfills wp -> w -> porg and w is closer than wp, then switch from wp to w
2149
2150                 // if wp -> porg, then OK
2151                 float maxdist;
2152                 if(navigation_waypoint_will_link(wp.origin, porg, p, porg, 0, wp.origin, 0, walkfromwp, 1050))
2153                 {
2154                         // we may find a better one
2155                         maxdist = vlen(wp.origin - porg);
2156                 }
2157                 else
2158                 {
2159                         // accept any "good"
2160                         maxdist = 2100;
2161                 }
2162
2163                 float bestdist = maxdist;
2164                 IL_EACH(g_waypoints, it != wp && !(it.wpflags & WPFLAGMASK_NORELINK),
2165                 {
2166                         float d = vlen(wp.origin - it.origin) + vlen(it.origin - porg);
2167                         if(d < bestdist)
2168                         if(navigation_waypoint_will_link(wp.origin, it.origin, p, it.origin, 0, wp.origin, 0, walkfromwp, 1050))
2169                         if(navigation_waypoint_will_link(it.origin, porg, p, porg, 0, it.origin, 0, walkfromwp, 1050))
2170                         {
2171                                 bestdist = d;
2172                                 p.(fld) = it;
2173                         }
2174                 });
2175                 if(bestdist < maxdist)
2176                 {
2177                         LOG_INFO("update chain to new nearest WP ", etos(p.(fld)));
2178                         return 0;
2179                 }
2180
2181                 if(bestdist < 2100)
2182                 {
2183                         // we know maxdist < 2100
2184                         // so wp -> porg is still valid
2185                         // all is good
2186                         p.(fld) = wp;
2187                         return 0;
2188                 }
2189
2190                 // otherwise, no existing WP can fix our issues
2191         }
2192         else
2193         {
2194                 save = p.origin;
2195                 setorigin(p, porg);
2196                 w = navigation_findnearestwaypoint(p, walkfromwp);
2197                 setorigin(p, save);
2198                 if(w)
2199                 {
2200                         p.(fld) = w;
2201                         return 0;
2202                 }
2203         }
2204
2205         tmin = 0;
2206         tmax = 1;
2207         for (;;)
2208         {
2209                 if(tmax - tmin < 0.001)
2210                 {
2211                         // did not get a good candidate
2212                         return -1;
2213                 }
2214
2215                 t = (tmin + tmax) * 0.5;
2216                 o = antilag_takebackorigin(p, CS(p), time - t);
2217                 if(!botframe_autowaypoints_fixdown(o))
2218                         return -2;
2219                 o = trace_endpos;
2220
2221                 if(wp)
2222                 {
2223                         if(!navigation_waypoint_will_link(wp.origin, o, p, o, 0, wp.origin, 0, walkfromwp, 1050))
2224                         {
2225                                 // we cannot walk from wp.origin to o
2226                                 // get closer to tmax
2227                                 tmin = t;
2228                                 continue;
2229                         }
2230                 }
2231                 else
2232                 {
2233                         save = p.origin;
2234                         setorigin(p, o);
2235                         w = navigation_findnearestwaypoint(p, walkfromwp);
2236                         setorigin(p, save);
2237                         if(!w)
2238                         {
2239                                 // we cannot walk from any WP to o
2240                                 // get closer to tmax
2241                                 tmin = t;
2242                                 continue;
2243                         }
2244                 }
2245
2246                 // if we get here, o is valid regarding waypoints
2247                 // check if o is connected right to the player
2248                 // we break if it succeeds, as that means o is a good waypoint location
2249                 if(navigation_waypoint_will_link(o, porg, p, porg, 0, o, 0, walkfromwp, 1050))
2250                         break;
2251
2252                 // o is no good, we need to get closer to the player
2253                 tmax = t;
2254         }
2255
2256         LOG_INFO("spawning a waypoint for connecting to ", etos(wp));
2257         botframe_autowaypoints_createwp(o, p, fld, 0);
2258         return 1;
2259 }
2260
2261 // automatically create missing waypoints
2262 void botframe_autowaypoints_fix(entity p, float walkfromwp, .entity fld)
2263 {
2264         float r = botframe_autowaypoints_fix_from(p, walkfromwp, p.(fld), fld);
2265         if(r != -1)
2266                 return;
2267         r = botframe_autowaypoints_fix_from(p, walkfromwp, NULL, fld);
2268         if(r != -1)
2269                 return;
2270
2271         LOG_INFO("emergency: got no good nearby WP to build a link from, starting a new chain");
2272         if(!botframe_autowaypoints_fixdown(p.origin))
2273                 return; // shouldn't happen, caught above
2274         botframe_autowaypoints_createwp(trace_endpos, p, fld, WAYPOINTFLAG_PROTECTED);
2275 }
2276
2277 void botframe_deleteuselesswaypoints()
2278 {
2279         IL_EACH(g_items, it.bot_pickup,
2280         {
2281                 // NOTE: this protects waypoints if they're the ONLY nearest
2282                 // waypoint. That's the intention.
2283                 navigation_findnearestwaypoint(it, false);  // Walk TO item.
2284                 navigation_findnearestwaypoint(it, true);  // Walk FROM item.
2285         });
2286         IL_EACH(g_waypoints, true,
2287         {
2288                 it.wpflags |= WAYPOINTFLAG_DEAD_END;
2289                 it.wpflags &= ~WAYPOINTFLAG_USEFUL;
2290                 // WP is useful if:
2291                 if (it.wpflags & WAYPOINTFLAG_ITEM)
2292                         it.wpflags |= WAYPOINTFLAG_USEFUL;
2293                 if (it.wpflags & WAYPOINTFLAG_TELEPORT)
2294                         it.wpflags |= WAYPOINTFLAG_USEFUL;
2295                 if (it.wpflags & WAYPOINTFLAG_LADDER)
2296                         it.wpflags |= WAYPOINTFLAG_USEFUL;
2297                 if (it.wpflags & WAYPOINTFLAG_PROTECTED)
2298                         it.wpflags |= WAYPOINTFLAG_USEFUL;
2299                 // b) WP is closest WP for an item/spawnpoint/other entity
2300                 //    This has been done above by protecting these WPs.
2301         });
2302         // c) There are w1, w, w2 so that w1 -> w, w -> w2 and not w1 -> w2.
2303         IL_EACH(g_waypoints, !(it.wpflags & WAYPOINTFLAG_PERSONAL),
2304         {
2305                 for (int m = 0; m < 32; ++m)
2306                 {
2307                         entity w = waypoint_get_link(it, m);
2308                         if (!w)
2309                                 break;
2310                         if (w.wpflags & WAYPOINTFLAG_PERSONAL)
2311                                 continue;
2312                         if (w.wpflags & WAYPOINTFLAG_USEFUL)
2313                                 continue;
2314                         for (int j = 0; j < 32; ++j)
2315                         {
2316                                 entity w2 = waypoint_get_link(w, j);
2317                                 if (!w2)
2318                                         break;
2319                                 if (it == w2)
2320                                         continue;
2321                                 if (w2.wpflags & WAYPOINTFLAG_PERSONAL)
2322                                         continue;
2323                                 // If we got here, it != w2 exist with it -> w
2324                                 // and w -> w2. That means the waypoint is not
2325                                 // a dead end.
2326                                 w.wpflags &= ~WAYPOINTFLAG_DEAD_END;
2327                                 for (int k = 0; k < 32; ++k)
2328                                 {
2329                                         if (waypoint_get_link(it, k) == w2)
2330                                                 continue;
2331                                         // IF WE GET HERE, w is proven useful
2332                                         // to get from it to w2!
2333                                         w.wpflags |= WAYPOINTFLAG_USEFUL;
2334                                         goto next;
2335                                 }
2336                         }
2337 LABEL(next)
2338                 }
2339         });
2340         // d) The waypoint is a dead end. Dead end waypoints must be kept as
2341         //     they are needed to complete routes while autowaypointing.
2342
2343         IL_EACH(g_waypoints, !(it.wpflags & (WAYPOINTFLAG_USEFUL | WAYPOINTFLAG_DEAD_END)),
2344         {
2345                 LOG_INFOF("Removed a waypoint at %v. Try again for more!", it.origin);
2346                 te_explosion(it.origin);
2347                 waypoint_remove(it);
2348                 break;
2349         });
2350
2351         IL_EACH(g_waypoints, true,
2352         {
2353                 it.wpflags &= ~(WAYPOINTFLAG_USEFUL | WAYPOINTFLAG_DEAD_END); // temp flag
2354         });
2355 }
2356
2357 //.entity botframe_autowaypoints_lastwp0;
2358 .entity botframe_autowaypoints_lastwp1;
2359 void botframe_autowaypoints()
2360 {
2361         FOREACH_CLIENT(IS_PLAYER(it) && IS_REAL_CLIENT(it) && !IS_DEAD(it), {
2362                 // going back is broken, so only fix waypoints to walk TO the player
2363                 //botframe_autowaypoints_fix(p, false, botframe_autowaypoints_lastwp0);
2364                 botframe_autowaypoints_fix(it, true, botframe_autowaypoints_lastwp1);
2365                 //te_explosion(p.botframe_autowaypoints_lastwp0.origin);
2366         });
2367
2368         if (autocvar_g_waypointeditor_auto >= 2) {
2369                 botframe_deleteuselesswaypoints();
2370         }
2371 }
2372