8ef440deebfd67eed368bab3862c9d6018066a5f
[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/net_linked.qh>
16 #include <common/physics/player.qh>
17
18 #include <lib/warpzone/common.qh>
19 #include <lib/warpzone/util_server.qh>
20
21 .entity spawnpointmodel;
22 void waypoint_unreachable(entity pl)
23 {
24         IL_EACH(g_waypoints, true,
25         {
26                 it.colormod = '0.5 0.5 0.5';
27                 it.effects &= ~(EF_NODEPTHTEST | EF_RED | EF_BLUE);
28         });
29
30         entity e2 = navigation_findnearestwaypoint(pl, false);
31         if(!e2)
32         {
33                 LOG_INFOF("Can't find any waypoint nearby\n");
34                 return;
35         }
36
37         navigation_markroutes(pl, e2);
38
39         int j = 0;
40         int m = 0;
41         IL_EACH(g_waypoints, it.wpcost >= 10000000,
42         {
43                 LOG_INFO("unreachable: ", etos(it), " ", vtos(it.origin), "\n");
44                 it.colormod_z = 8;
45                 it.effects |= EF_NODEPTHTEST | EF_BLUE;
46                 j++;
47                 m++;
48         });
49         if (j) LOG_INFOF("%d waypoints cannot be reached from here in any way (marked with blue light)\n", j);
50         navigation_markroutes_inverted(e2);
51
52         j = 0;
53         IL_EACH(g_waypoints, it.wpcost >= 10000000,
54         {
55                 LOG_INFO("cannot reach me: ", etos(it), " ", vtos(it.origin), "\n");
56                 it.colormod_x = 8;
57                 if (!(it.effects & EF_NODEPTHTEST))  // not already reported before
58                         m++;
59                 it.effects |= EF_NODEPTHTEST | EF_RED;
60                 j++;
61         });
62         if (j) LOG_INFOF("%d waypoints cannot walk to here in any way (marked with red light)\n", j);
63         if (m) LOG_INFOF("%d waypoints have been marked total\n", m);
64
65         j = 0;
66         IL_EACH(g_spawnpoints, true,
67         {
68                 if (navigation_findnearestwaypoint(it, false))
69                 {
70                         if(it.spawnpointmodel)
71                         {
72                                 delete(it.spawnpointmodel);
73                                 it.spawnpointmodel = NULL;
74                         }
75                 }
76                 else
77                 {
78                         if(!it.spawnpointmodel)
79                         {
80                                 tracebox(it.origin, PL_MIN_CONST, PL_MAX_CONST, it.origin - '0 0 512', MOVE_NOMONSTERS, NULL);
81                                 entity e = new(spawnpointmodel);
82                                 vector org = trace_endpos + eZ;
83                                 setorigin(e, org);
84                                 e.solid = SOLID_TRIGGER;
85                                 it.spawnpointmodel = e;
86                         }
87                         LOG_INFO("spawn without waypoint: ", etos(it), " ", vtos(it.origin), "\n");
88                         it.spawnpointmodel.effects |= EF_NODEPTHTEST;
89                         _setmodel(it.spawnpointmodel, pl.model);
90                         it.spawnpointmodel.frame = pl.frame;
91                         it.spawnpointmodel.skin = pl.skin;
92                         it.spawnpointmodel.colormap = pl.colormap;
93                         it.spawnpointmodel.colormod = pl.colormod;
94                         it.spawnpointmodel.glowmod = pl.glowmod;
95                         setsize(it.spawnpointmodel, PL_MIN_CONST, PL_MAX_CONST);
96                         j++;
97                 }
98         });
99         if (j) LOG_INFOF("%d spawnpoints have no nearest waypoint (marked by player model)\n", j);
100
101         j = 0;
102         IL_EACH(g_items, true,
103         {
104                 it.effects &= ~(EF_NODEPTHTEST | EF_RED | EF_BLUE);
105                 it.colormod = '0.5 0.5 0.5';
106         });
107         IL_EACH(g_items, true,
108         {
109                 if (navigation_findnearestwaypoint(it, false))
110                         continue;
111                 LOG_INFO("item without waypoint: ", etos(it), " ", vtos(it.origin), "\n");
112                 it.effects |= EF_NODEPTHTEST | EF_RED;
113                 it.colormod_x = 8;
114                 j++;
115         });
116         if (j) LOG_INFOF("%d items have no nearest waypoint and cannot be walked away from (marked with red light)\n", j);
117
118         j = 0;
119         IL_EACH(g_items, true,
120         {
121                 if (navigation_findnearestwaypoint(it, true))
122                         continue;
123                 LOG_INFO("item without waypoint: ", etos(it), " ", vtos(it.origin), "\n");
124                 it.effects |= EF_NODEPTHTEST | EF_BLUE;
125                 it.colormod_z = 8;
126                 j++;
127         });
128         if (j) LOG_INFOF("%d items have no nearest waypoint and cannot be walked to (marked with blue light)\n", j);
129 }
130
131 vector waypoint_getSymmetricalPoint(vector org, int ctf_flags)
132 {
133         vector new_org = org;
134         if (fabs(autocvar_g_waypointeditor_symmetrical) == 1)
135         {
136                 vector map_center = havocbot_middlepoint;
137                 if (autocvar_g_waypointeditor_symmetrical == -1)
138                         map_center = autocvar_g_waypointeditor_symmetrical_origin;
139
140                 new_org = Rotate(org - map_center, 360 * DEG2RAD / ctf_flags) + map_center;
141         }
142         else if (fabs(autocvar_g_waypointeditor_symmetrical) == 2)
143         {
144                 float m = havocbot_symmetry_axis_m;
145                 float q = havocbot_symmetry_axis_q;
146                 if (autocvar_g_waypointeditor_symmetrical == -2)
147                 {
148                         m = autocvar_g_waypointeditor_symmetrical_axis.x;
149                         q = autocvar_g_waypointeditor_symmetrical_axis.y;
150                 }
151
152                 new_org.x = (1 / (1 + m*m)) * ((1 - m*m) * org.x + 2 * m * org.y - 2 * m * q);
153                 new_org.y = (1 / (1 + m*m)) * (2 * m * org.x + (m*m - 1) * org.y + 2 * q);
154         }
155         new_org.z = org.z;
156         return new_org;
157 }
158
159 void waypoint_setupmodel(entity wp)
160 {
161         if (autocvar_g_waypointeditor)
162         {
163                 // TODO: add some sort of visible box in edit mode for box waypoints
164                 vector m1 = wp.mins;
165                 vector m2 = wp.maxs;
166                 setmodel(wp, MDL_WAYPOINT);
167                 setsize(wp, m1, m2);
168                 wp.effects = EF_LOWPRECISION;
169                 if (wp.wpflags & WAYPOINTFLAG_ITEM)
170                         wp.colormod = '1 0 0';
171                 else if (wp.wpflags & WAYPOINTFLAG_GENERATED)
172                         wp.colormod = '1 1 0';
173                 else if (wp.wphardwired)
174                         wp.colormod = '0.5 0 1';
175                 else
176                         wp.colormod = '1 1 1';
177         }
178         else
179                 wp.model = "";
180 }
181
182 entity waypoint_spawn(vector m1, vector m2, float f)
183 {
184         if(!(f & (WAYPOINTFLAG_PERSONAL | WAYPOINTFLAG_GENERATED)) && m1 == m2)
185         {
186                 vector em1 = m1 - '8 8 8';
187                 vector em2 = m2 + '8 8 8';
188                 IL_EACH(g_waypoints, boxesoverlap(em1, em2, it.absmin, it.absmax),
189                 {
190                         return it;
191                 });
192         }
193         // spawn only one destination waypoint for teleports teleporting player to the exact same spot
194         // otherwise links loaded from file would be applied only to the first destination
195         // waypoint since link format doesn't specify waypoint entities but just positions
196         if((f & WAYPOINTFLAG_GENERATED) && !(f & (WAYPOINTFLAG_NORELINK | WAYPOINTFLAG_PERSONAL)) && m1 == m2)
197         {
198                 IL_EACH(g_waypoints, boxesoverlap(m1, m2, it.absmin, it.absmax),
199                 {
200                         return it;
201                 });
202         }
203
204         entity w = new(waypoint);
205         IL_PUSH(g_waypoints, w);
206         w.dphitcontentsmask = DPCONTENTS_SOLID | DPCONTENTS_BODY | DPCONTENTS_PLAYERCLIP | DPCONTENTS_BOTCLIP;
207         w.wpflags = f;
208         w.solid = SOLID_TRIGGER;
209         setorigin(w, (m1 + m2) * 0.5);
210         setsize(w, m1 - w.origin, m2 - w.origin);
211         if (w.size)
212                 w.wpisbox = true;
213
214         if(!w.wpisbox)
215         {
216                 setsize(w, PL_MIN_CONST - '1 1 0', PL_MAX_CONST + '1 1 0');
217                 if(!move_out_of_solid(w))
218                 {
219                         if(!(f & WAYPOINTFLAG_GENERATED))
220                         {
221                                 LOG_TRACE("Killed a waypoint that was stuck in solid at ", vtos(w.origin));
222                                 delete(w);
223                                 return NULL;
224                         }
225                         else
226                         {
227                                 if(autocvar_developer)
228                                 {
229                                         LOG_INFO("A generated waypoint is stuck in solid at ", vtos(w.origin));
230                                         backtrace("Waypoint stuck");
231                                 }
232                         }
233                 }
234                 setsize(w, '0 0 0', '0 0 0');
235         }
236
237         waypoint_clearlinks(w);
238         //waypoint_schedulerelink(w);
239
240         waypoint_setupmodel(w);
241
242         return w;
243 }
244
245 void waypoint_spawn_fromeditor(entity pl)
246 {
247         entity e;
248         vector org = pl.origin;
249         int ctf_flags = havocbot_symmetry_origin_order;
250         bool sym = ((autocvar_g_waypointeditor_symmetrical > 0 && ctf_flags >= 2)
251                    || (autocvar_g_waypointeditor_symmetrical < 0));
252         if(autocvar_g_waypointeditor_symmetrical_order >= 2)
253                 ctf_flags = autocvar_g_waypointeditor_symmetrical_order;
254         if (sym && ctf_flags < 2)
255                 ctf_flags = 2;
256         int wp_num = ctf_flags;
257
258         if(!PHYS_INPUT_BUTTON_CROUCH(pl))
259         {
260                 // snap waypoint to item's origin if close enough
261                 IL_EACH(g_items, true,
262                 {
263                         vector item_org = (it.absmin + it.absmax) * 0.5;
264                         item_org.z = it.absmin.z - PL_MIN_CONST.z;
265                         if (vlen(item_org - org) < 20)
266                         {
267                                 org = item_org;
268                                 break;
269                         }
270                 });
271         }
272
273         LABEL(add_wp);
274         e = waypoint_spawn(org, org, 0);
275         if(!e)
276         {
277                 LOG_INFOF("Couldn't spawn waypoint at %v\n", org);
278                 return;
279         }
280         waypoint_schedulerelink(e);
281         bprint(strcat("Waypoint spawned at ", vtos(e.origin), "\n"));
282         if(sym)
283         {
284                 org = waypoint_getSymmetricalPoint(e.origin, ctf_flags);
285                 if (vdist(org - pl.origin, >, 32))
286                 {
287                         if(wp_num > 2)
288                                 wp_num--;
289                         else
290                                 sym = false;
291                         goto add_wp;
292                 }
293         }
294 }
295
296 void waypoint_remove(entity wp)
297 {
298         IL_EACH(g_waypoints, it != wp,
299         {
300                 if (waypoint_islinked(it, wp))
301                         waypoint_removelink(it, wp);
302         });
303         delete(wp);
304 }
305
306 void waypoint_remove_fromeditor(entity pl)
307 {
308         entity e = navigation_findnearestwaypoint(pl, false);
309
310         int ctf_flags = havocbot_symmetry_origin_order;
311         bool sym = ((autocvar_g_waypointeditor_symmetrical > 0 && ctf_flags >= 2)
312                    || (autocvar_g_waypointeditor_symmetrical < 0));
313         if(autocvar_g_waypointeditor_symmetrical_order >= 2)
314                 ctf_flags = autocvar_g_waypointeditor_symmetrical_order;
315         if (sym && ctf_flags < 2)
316                 ctf_flags = 2;
317         int wp_num = ctf_flags;
318
319         LABEL(remove_wp);
320         if (!e) return;
321         if (e.wpflags & WAYPOINTFLAG_GENERATED) return;
322
323         if (e.wphardwired)
324         {
325                 LOG_INFO("^1Warning: ^7Removal of hardwired waypoints is not allowed in the editor. Please remove links from/to this waypoint (", vtos(e.origin), ") by hand from maps/", mapname, ".waypoints.hardwired\n");
326                 return;
327         }
328
329         entity wp_sym = NULL;
330         if (sym)
331         {
332                 vector org = waypoint_getSymmetricalPoint(e.origin, ctf_flags);
333                 FOREACH_ENTITY_CLASS("waypoint", !(it.wpflags & WAYPOINTFLAG_GENERATED), {
334                         if(vdist(org - it.origin, <, 3))
335                         {
336                                 wp_sym = it;
337                                 break;
338                         }
339                 });
340         }
341
342         bprint(strcat("Waypoint removed at ", vtos(e.origin), "\n"));
343         waypoint_remove(e);
344
345         if (sym && wp_sym)
346         {
347                 e = wp_sym;
348                 if(wp_num > 2)
349                         wp_num--;
350                 else
351                         sym = false;
352                 goto remove_wp;
353         }
354 }
355
356 void waypoint_removelink(entity from, entity to)
357 {
358         if (from == to || (from.wpflags & WAYPOINTFLAG_NORELINK))
359                 return;
360
361         entity fromwp31_prev = from.wp31;
362
363         switch (waypoint_getlinknum(from, to))
364         {
365                 // fallthrough all the way
366                 case  0: from.wp00 = from.wp01; from.wp00mincost = from.wp01mincost;
367                 case  1: from.wp01 = from.wp02; from.wp01mincost = from.wp02mincost;
368                 case  2: from.wp02 = from.wp03; from.wp02mincost = from.wp03mincost;
369                 case  3: from.wp03 = from.wp04; from.wp03mincost = from.wp04mincost;
370                 case  4: from.wp04 = from.wp05; from.wp04mincost = from.wp05mincost;
371                 case  5: from.wp05 = from.wp06; from.wp05mincost = from.wp06mincost;
372                 case  6: from.wp06 = from.wp07; from.wp06mincost = from.wp07mincost;
373                 case  7: from.wp07 = from.wp08; from.wp07mincost = from.wp08mincost;
374                 case  8: from.wp08 = from.wp09; from.wp08mincost = from.wp09mincost;
375                 case  9: from.wp09 = from.wp10; from.wp09mincost = from.wp10mincost;
376                 case 10: from.wp10 = from.wp11; from.wp10mincost = from.wp11mincost;
377                 case 11: from.wp11 = from.wp12; from.wp11mincost = from.wp12mincost;
378                 case 12: from.wp12 = from.wp13; from.wp12mincost = from.wp13mincost;
379                 case 13: from.wp13 = from.wp14; from.wp13mincost = from.wp14mincost;
380                 case 14: from.wp14 = from.wp15; from.wp14mincost = from.wp15mincost;
381                 case 15: from.wp15 = from.wp16; from.wp15mincost = from.wp16mincost;
382                 case 16: from.wp16 = from.wp17; from.wp16mincost = from.wp17mincost;
383                 case 17: from.wp17 = from.wp18; from.wp17mincost = from.wp18mincost;
384                 case 18: from.wp18 = from.wp19; from.wp18mincost = from.wp19mincost;
385                 case 19: from.wp19 = from.wp20; from.wp19mincost = from.wp20mincost;
386                 case 20: from.wp20 = from.wp21; from.wp20mincost = from.wp21mincost;
387                 case 21: from.wp21 = from.wp22; from.wp21mincost = from.wp22mincost;
388                 case 22: from.wp22 = from.wp23; from.wp22mincost = from.wp23mincost;
389                 case 23: from.wp23 = from.wp24; from.wp23mincost = from.wp24mincost;
390                 case 24: from.wp24 = from.wp25; from.wp24mincost = from.wp25mincost;
391                 case 25: from.wp25 = from.wp26; from.wp25mincost = from.wp26mincost;
392                 case 26: from.wp26 = from.wp27; from.wp26mincost = from.wp27mincost;
393                 case 27: from.wp27 = from.wp28; from.wp27mincost = from.wp28mincost;
394                 case 28: from.wp28 = from.wp29; from.wp28mincost = from.wp29mincost;
395                 case 29: from.wp29 = from.wp30; from.wp29mincost = from.wp30mincost;
396                 case 30: from.wp30 = from.wp31; from.wp30mincost = from.wp31mincost;
397                 case 31: from.wp31 = NULL; from.wp31mincost = 10000000;
398         }
399
400         if (fromwp31_prev && !from.wp31)
401                 waypoint_schedulerelink(from);
402 }
403
404 int waypoint_getlinknum(entity from, entity to)
405 {
406         if (from.wp00 == to) return  0; if (from.wp01 == to) return  1; if (from.wp02 == to) return  2; if (from.wp03 == to) return  3;
407         if (from.wp04 == to) return  4; if (from.wp05 == to) return  5; if (from.wp06 == to) return  6; if (from.wp07 == to) return  7;
408         if (from.wp08 == to) return  8; if (from.wp09 == to) return  9; if (from.wp10 == to) return 10; if (from.wp11 == to) return 11;
409         if (from.wp12 == to) return 12; if (from.wp13 == to) return 13; if (from.wp14 == to) return 14; if (from.wp15 == to) return 15;
410         if (from.wp16 == to) return 16; if (from.wp17 == to) return 17; if (from.wp18 == to) return 18; if (from.wp19 == to) return 19;
411         if (from.wp20 == to) return 20; if (from.wp21 == to) return 21; if (from.wp22 == to) return 22; if (from.wp23 == to) return 23;
412         if (from.wp24 == to) return 24; if (from.wp25 == to) return 25; if (from.wp26 == to) return 26; if (from.wp27 == to) return 27;
413         if (from.wp28 == to) return 28; if (from.wp29 == to) return 29; if (from.wp30 == to) return 30; if (from.wp31 == to) return 31;
414         return -1;
415 }
416
417 bool waypoint_islinked(entity from, entity to)
418 {
419         return (waypoint_getlinknum(from, to) >= 0);
420 }
421
422 void waypoint_updatecost_foralllinks()
423 {
424         IL_EACH(g_waypoints, !(it.wpflags & WAYPOINTFLAG_TELEPORT),
425         {
426                 if(it.wp00) it.wp00mincost = waypoint_getlinkcost(it, it.wp00);
427                 if(it.wp01) it.wp01mincost = waypoint_getlinkcost(it, it.wp01);
428                 if(it.wp02) it.wp02mincost = waypoint_getlinkcost(it, it.wp02);
429                 if(it.wp03) it.wp03mincost = waypoint_getlinkcost(it, it.wp03);
430                 if(it.wp04) it.wp04mincost = waypoint_getlinkcost(it, it.wp04);
431                 if(it.wp05) it.wp05mincost = waypoint_getlinkcost(it, it.wp05);
432                 if(it.wp06) it.wp06mincost = waypoint_getlinkcost(it, it.wp06);
433                 if(it.wp07) it.wp07mincost = waypoint_getlinkcost(it, it.wp07);
434                 if(it.wp08) it.wp08mincost = waypoint_getlinkcost(it, it.wp08);
435                 if(it.wp09) it.wp09mincost = waypoint_getlinkcost(it, it.wp09);
436                 if(it.wp10) it.wp10mincost = waypoint_getlinkcost(it, it.wp10);
437                 if(it.wp11) it.wp11mincost = waypoint_getlinkcost(it, it.wp11);
438                 if(it.wp12) it.wp12mincost = waypoint_getlinkcost(it, it.wp12);
439                 if(it.wp13) it.wp13mincost = waypoint_getlinkcost(it, it.wp13);
440                 if(it.wp14) it.wp14mincost = waypoint_getlinkcost(it, it.wp14);
441                 if(it.wp15) it.wp15mincost = waypoint_getlinkcost(it, it.wp15);
442                 if(it.wp16) it.wp16mincost = waypoint_getlinkcost(it, it.wp16);
443                 if(it.wp17) it.wp17mincost = waypoint_getlinkcost(it, it.wp17);
444                 if(it.wp18) it.wp18mincost = waypoint_getlinkcost(it, it.wp18);
445                 if(it.wp19) it.wp19mincost = waypoint_getlinkcost(it, it.wp19);
446                 if(it.wp20) it.wp20mincost = waypoint_getlinkcost(it, it.wp20);
447                 if(it.wp21) it.wp21mincost = waypoint_getlinkcost(it, it.wp21);
448                 if(it.wp22) it.wp22mincost = waypoint_getlinkcost(it, it.wp22);
449                 if(it.wp23) it.wp23mincost = waypoint_getlinkcost(it, it.wp23);
450                 if(it.wp24) it.wp24mincost = waypoint_getlinkcost(it, it.wp24);
451                 if(it.wp25) it.wp25mincost = waypoint_getlinkcost(it, it.wp25);
452                 if(it.wp26) it.wp26mincost = waypoint_getlinkcost(it, it.wp26);
453                 if(it.wp27) it.wp27mincost = waypoint_getlinkcost(it, it.wp27);
454                 if(it.wp28) it.wp28mincost = waypoint_getlinkcost(it, it.wp28);
455                 if(it.wp29) it.wp29mincost = waypoint_getlinkcost(it, it.wp29);
456                 if(it.wp30) it.wp30mincost = waypoint_getlinkcost(it, it.wp30);
457                 if(it.wp31) it.wp31mincost = waypoint_getlinkcost(it, it.wp31);
458         });
459 }
460
461 float waypoint_getlinearcost(float dist)
462 {
463         if(skill >= autocvar_bot_ai_bunnyhop_skilloffset)
464                 return dist / (autocvar_sv_maxspeed * 1.25);
465         return dist / autocvar_sv_maxspeed;
466 }
467 float waypoint_getlinearcost_underwater(float dist)
468 {
469         // NOTE: underwater speed factor is hardcoded in the engine too, see SV_WaterMove
470         return dist / (autocvar_sv_maxspeed * 0.7);
471 }
472
473 float waypoint_gettravelcost(vector from, vector to, entity from_ent, entity to_ent)
474 {
475         bool submerged_from = navigation_check_submerged_state(from_ent, from);
476         bool submerged_to = navigation_check_submerged_state(to_ent, to);
477
478         if (submerged_from && submerged_to)
479                 return waypoint_getlinearcost_underwater(vlen(to - from));
480
481         float c = waypoint_getlinearcost(vlen(to - from));
482
483         float height = from.z - to.z;
484         if(height > jumpheight_vec.z && autocvar_sv_gravity > 0)
485         {
486                 float height_cost = sqrt(height / (autocvar_sv_gravity / 2));
487                 c = waypoint_getlinearcost(vlen(vec2(to - from))); // xy distance cost
488                 if(height_cost > c)
489                         c = height_cost;
490         }
491
492         if (submerged_from || submerged_to)
493                 return (c + waypoint_getlinearcost_underwater(vlen(to - from))) / 2;
494         return c;
495 }
496
497 float waypoint_getlinkcost(entity from, entity to)
498 {
499         vector v1 = from.origin;
500         vector v2 = to.origin;
501         if (from.wpisbox)
502         {
503                 vector m1 = from.absmin, m2 = from.absmax;
504                 v1.x = bound(m1.x, v2.x, m2.x);
505                 v1.y = bound(m1.y, v2.y, m2.y);
506                 v1.z = bound(m1.z, v2.z, m2.z);
507         }
508         if (to.wpisbox)
509         {
510                 vector m1 = to.absmin, m2 = to.absmax;
511                 v2.x = bound(m1.x, v1.x, m2.x);
512                 v2.y = bound(m1.y, v1.y, m2.y);
513                 v2.z = bound(m1.z, v1.z, m2.z);
514         }
515         return waypoint_gettravelcost(v1, v2, from, to);
516 }
517
518 // add a new link to the spawnfunc_waypoint, replacing the furthest link it already has
519 // if c == -1 automatically determine cost of the link
520 void waypoint_addlink_customcost(entity from, entity to, float c)
521 {
522         if (from == to || waypoint_islinked(from, to))
523                 return;
524         if (c == -1 && (from.wpflags & WAYPOINTFLAG_NORELINK))
525                 return;
526
527         if(c == -1)
528                 c = waypoint_getlinkcost(from, to);
529
530         if (from.wp31mincost < c) return;
531         if (from.wp30mincost < c) {from.wp31 = to;from.wp31mincost = c;return;} from.wp31 = from.wp30;from.wp31mincost = from.wp30mincost;
532         if (from.wp29mincost < c) {from.wp30 = to;from.wp30mincost = c;return;} from.wp30 = from.wp29;from.wp30mincost = from.wp29mincost;
533         if (from.wp28mincost < c) {from.wp29 = to;from.wp29mincost = c;return;} from.wp29 = from.wp28;from.wp29mincost = from.wp28mincost;
534         if (from.wp27mincost < c) {from.wp28 = to;from.wp28mincost = c;return;} from.wp28 = from.wp27;from.wp28mincost = from.wp27mincost;
535         if (from.wp26mincost < c) {from.wp27 = to;from.wp27mincost = c;return;} from.wp27 = from.wp26;from.wp27mincost = from.wp26mincost;
536         if (from.wp25mincost < c) {from.wp26 = to;from.wp26mincost = c;return;} from.wp26 = from.wp25;from.wp26mincost = from.wp25mincost;
537         if (from.wp24mincost < c) {from.wp25 = to;from.wp25mincost = c;return;} from.wp25 = from.wp24;from.wp25mincost = from.wp24mincost;
538         if (from.wp23mincost < c) {from.wp24 = to;from.wp24mincost = c;return;} from.wp24 = from.wp23;from.wp24mincost = from.wp23mincost;
539         if (from.wp22mincost < c) {from.wp23 = to;from.wp23mincost = c;return;} from.wp23 = from.wp22;from.wp23mincost = from.wp22mincost;
540         if (from.wp21mincost < c) {from.wp22 = to;from.wp22mincost = c;return;} from.wp22 = from.wp21;from.wp22mincost = from.wp21mincost;
541         if (from.wp20mincost < c) {from.wp21 = to;from.wp21mincost = c;return;} from.wp21 = from.wp20;from.wp21mincost = from.wp20mincost;
542         if (from.wp19mincost < c) {from.wp20 = to;from.wp20mincost = c;return;} from.wp20 = from.wp19;from.wp20mincost = from.wp19mincost;
543         if (from.wp18mincost < c) {from.wp19 = to;from.wp19mincost = c;return;} from.wp19 = from.wp18;from.wp19mincost = from.wp18mincost;
544         if (from.wp17mincost < c) {from.wp18 = to;from.wp18mincost = c;return;} from.wp18 = from.wp17;from.wp18mincost = from.wp17mincost;
545         if (from.wp16mincost < c) {from.wp17 = to;from.wp17mincost = c;return;} from.wp17 = from.wp16;from.wp17mincost = from.wp16mincost;
546         if (from.wp15mincost < c) {from.wp16 = to;from.wp16mincost = c;return;} from.wp16 = from.wp15;from.wp16mincost = from.wp15mincost;
547         if (from.wp14mincost < c) {from.wp15 = to;from.wp15mincost = c;return;} from.wp15 = from.wp14;from.wp15mincost = from.wp14mincost;
548         if (from.wp13mincost < c) {from.wp14 = to;from.wp14mincost = c;return;} from.wp14 = from.wp13;from.wp14mincost = from.wp13mincost;
549         if (from.wp12mincost < c) {from.wp13 = to;from.wp13mincost = c;return;} from.wp13 = from.wp12;from.wp13mincost = from.wp12mincost;
550         if (from.wp11mincost < c) {from.wp12 = to;from.wp12mincost = c;return;} from.wp12 = from.wp11;from.wp12mincost = from.wp11mincost;
551         if (from.wp10mincost < c) {from.wp11 = to;from.wp11mincost = c;return;} from.wp11 = from.wp10;from.wp11mincost = from.wp10mincost;
552         if (from.wp09mincost < c) {from.wp10 = to;from.wp10mincost = c;return;} from.wp10 = from.wp09;from.wp10mincost = from.wp09mincost;
553         if (from.wp08mincost < c) {from.wp09 = to;from.wp09mincost = c;return;} from.wp09 = from.wp08;from.wp09mincost = from.wp08mincost;
554         if (from.wp07mincost < c) {from.wp08 = to;from.wp08mincost = c;return;} from.wp08 = from.wp07;from.wp08mincost = from.wp07mincost;
555         if (from.wp06mincost < c) {from.wp07 = to;from.wp07mincost = c;return;} from.wp07 = from.wp06;from.wp07mincost = from.wp06mincost;
556         if (from.wp05mincost < c) {from.wp06 = to;from.wp06mincost = c;return;} from.wp06 = from.wp05;from.wp06mincost = from.wp05mincost;
557         if (from.wp04mincost < c) {from.wp05 = to;from.wp05mincost = c;return;} from.wp05 = from.wp04;from.wp05mincost = from.wp04mincost;
558         if (from.wp03mincost < c) {from.wp04 = to;from.wp04mincost = c;return;} from.wp04 = from.wp03;from.wp04mincost = from.wp03mincost;
559         if (from.wp02mincost < c) {from.wp03 = to;from.wp03mincost = c;return;} from.wp03 = from.wp02;from.wp03mincost = from.wp02mincost;
560         if (from.wp01mincost < c) {from.wp02 = to;from.wp02mincost = c;return;} from.wp02 = from.wp01;from.wp02mincost = from.wp01mincost;
561         if (from.wp00mincost < c) {from.wp01 = to;from.wp01mincost = c;return;} from.wp01 = from.wp00;from.wp01mincost = from.wp00mincost;
562         from.wp00 = to;from.wp00mincost = c;return;
563 }
564
565 void waypoint_addlink(entity from, entity to)
566 {
567         waypoint_addlink_customcost(from, to, -1);
568 }
569
570 // relink this spawnfunc_waypoint
571 // (precompile a list of all reachable waypoints from this spawnfunc_waypoint)
572 // (SLOW!)
573 void waypoint_think(entity this)
574 {
575         vector sv = '0 0 0', sv2 = '0 0 0', ev = '0 0 0', ev2 = '0 0 0', dv;
576         float sv2_height = 0, ev2_height = 0;
577
578         bot_calculate_stepheightvec();
579
580         int dphitcontentsmask_save = this.dphitcontentsmask;
581         this.dphitcontentsmask = DPCONTENTS_SOLID | DPCONTENTS_BODY | DPCONTENTS_PLAYERCLIP | DPCONTENTS_BOTCLIP;
582
583         bot_navigation_movemode = ((autocvar_bot_navigation_ignoreplayers) ? MOVE_NOMONSTERS : MOVE_NORMAL);
584
585         //dprint("waypoint_think wpisbox = ", ftos(this.wpisbox), "\n");
586         IL_EACH(g_waypoints, this != it,
587         {
588                 if (boxesoverlap(this.absmin, this.absmax, it.absmin, it.absmax))
589                 {
590                         waypoint_addlink(this, it);
591                         waypoint_addlink(it, this);
592                 }
593                 else
594                 {
595                         ++relink_total;
596                         if(!checkpvs(this.origin, it))
597                         {
598                                 ++relink_pvsculled;
599                                 continue;
600                         }
601
602                         sv = set_tracewalk_dest_2(this, it.origin);
603                         sv2 = tracewalk_dest;
604                         sv2_height = tracewalk_dest_height;
605                         ev = set_tracewalk_dest_2(it, this.origin);
606                         ev2 = tracewalk_dest;
607                         ev2_height = tracewalk_dest_height;
608
609                         dv = ev - sv;
610                         dv.z = 0;
611                         if(vdist(dv, >=, 1050)) // max search distance in XY
612                         {
613                                 ++relink_lengthculled;
614                                 continue;
615                         }
616
617                         navigation_testtracewalk = 0;
618
619                         //traceline(this.origin, it.origin, false, NULL);
620                         //if (trace_fraction == 1)
621                         if (this.wpisbox)
622                                 relink_walkculled += 0.5;
623                         else
624                         {
625                                 if (tracewalk(this, sv, PL_MIN_CONST, PL_MAX_CONST, ev2, ev2_height, MOVE_NOMONSTERS))
626                                         waypoint_addlink(this, it);
627                                 else
628                                         relink_walkculled += 0.5;
629                         }
630
631                         if (it.wpisbox)
632                                 relink_walkculled += 0.5;
633                         else
634                         {
635                                 if (tracewalk(this, ev, PL_MIN_CONST, PL_MAX_CONST, sv2, sv2_height, MOVE_NOMONSTERS))
636                                         waypoint_addlink(it, this);
637                                 else
638                                         relink_walkculled += 0.5;
639                         }
640                 }
641         });
642         navigation_testtracewalk = 0;
643         this.wplinked = true;
644         this.dphitcontentsmask = dphitcontentsmask_save;
645 }
646
647 void waypoint_clearlinks(entity wp)
648 {
649         // clear links to other waypoints
650         float f = 10000000;
651         wp.wp00 = wp.wp01 = wp.wp02 = wp.wp03 = wp.wp04 = wp.wp05 = wp.wp06 = wp.wp07 = NULL;
652         wp.wp08 = wp.wp09 = wp.wp10 = wp.wp11 = wp.wp12 = wp.wp13 = wp.wp14 = wp.wp15 = NULL;
653         wp.wp16 = wp.wp17 = wp.wp18 = wp.wp19 = wp.wp20 = wp.wp21 = wp.wp22 = wp.wp23 = NULL;
654         wp.wp24 = wp.wp25 = wp.wp26 = wp.wp27 = wp.wp28 = wp.wp29 = wp.wp30 = wp.wp31 = NULL;
655
656         wp.wp00mincost = wp.wp01mincost = wp.wp02mincost = wp.wp03mincost = wp.wp04mincost = wp.wp05mincost = wp.wp06mincost = wp.wp07mincost = f;
657         wp.wp08mincost = wp.wp09mincost = wp.wp10mincost = wp.wp11mincost = wp.wp12mincost = wp.wp13mincost = wp.wp14mincost = wp.wp15mincost = f;
658         wp.wp16mincost = wp.wp17mincost = wp.wp18mincost = wp.wp19mincost = wp.wp20mincost = wp.wp21mincost = wp.wp22mincost = wp.wp23mincost = f;
659         wp.wp24mincost = wp.wp25mincost = wp.wp26mincost = wp.wp27mincost = wp.wp28mincost = wp.wp29mincost = wp.wp30mincost = wp.wp31mincost = f;
660
661         wp.wplinked = false;
662 }
663
664 // tell a spawnfunc_waypoint to relink
665 void waypoint_schedulerelink(entity wp)
666 {
667         if (wp == NULL)
668                 return;
669
670         waypoint_setupmodel(wp);
671         wp.wpisbox = vdist(wp.size, >, 0);
672         wp.enemy = NULL;
673         if (!(wp.wpflags & WAYPOINTFLAG_PERSONAL))
674                 wp.owner = NULL;
675         if (!(wp.wpflags & WAYPOINTFLAG_NORELINK))
676                 waypoint_clearlinks(wp);
677         // schedule an actual relink on next frame
678         setthink(wp, waypoint_think);
679         wp.nextthink = time;
680         wp.effects = EF_LOWPRECISION;
681 }
682
683 // spawnfunc_waypoint map entity
684 spawnfunc(waypoint)
685 {
686         IL_PUSH(g_waypoints, this);
687
688         setorigin(this, this.origin);
689         // schedule a relink after other waypoints have had a chance to spawn
690         waypoint_clearlinks(this);
691         //waypoint_schedulerelink(this);
692 }
693
694 // tell all waypoints to relink
695 // actually this is useful only to update relink_* stats
696 void waypoint_schedulerelinkall()
697 {
698         relink_total = relink_walkculled = relink_pvsculled = relink_lengthculled = 0;
699         IL_EACH(g_waypoints, true,
700         {
701                 waypoint_schedulerelink(it);
702         });
703         waypoint_load_links_hardwired();
704 }
705
706 #define GET_GAMETYPE_EXTENSION() ((g_race) ? ".race" : "")
707
708 // Load waypoint links from file
709 bool waypoint_load_links()
710 {
711         string s;
712         float file, tokens, c = 0, found;
713         entity wp_from = NULL, wp_to;
714         vector wp_to_pos, wp_from_pos;
715
716         string gt_ext = GET_GAMETYPE_EXTENSION();
717
718         string filename = sprintf("maps/%s.waypoints.cache", strcat(mapname, gt_ext));
719         file = fopen(filename, FILE_READ);
720
721         if (gt_ext != "" && file < 0)
722         {
723                 // if race waypoint file doesn't exist load the default one
724                 filename = sprintf("maps/%s.waypoints.cache", mapname);
725                 file = fopen(filename, FILE_READ);
726         }
727
728         if (file < 0)
729         {
730                 LOG_TRACE("waypoint links load from ", filename, " failed");
731                 waypoint_schedulerelinkall();
732                 return false;
733         }
734
735         bool parse_comments = true;
736         float ver = 0;
737         string links_time = string_null;
738
739         while ((s = fgets(file)))
740         {
741                 if(parse_comments)
742                 {
743                         if(substring(s, 0, 2) == "//")
744                         {
745                                 if(substring(s, 2, 17) == "WAYPOINT_VERSION ")
746                                         ver = stof(substring(s, 19, -1));
747                                 else if(substring(s, 2, 14) == "WAYPOINT_TIME ")
748                                         links_time = substring(s, 16, -1);
749                                 continue;
750                         }
751                         else
752                         {
753                                 if(ver < WAYPOINT_VERSION || links_time != waypoint_time)
754                                 {
755                                         if (links_time != waypoint_time)
756                                                 LOG_TRACE("waypoint links for this map are not made for these waypoints.");
757                                         else
758                                                 LOG_TRACE("waypoint links for this map are outdated.");
759                                         if (g_assault)
760                                         {
761                                                 LOG_TRACE("Assault waypoint links need to be manually updated in the editor");
762                                         }
763                                         else
764                                         {
765                                                 LOG_TRACE("automatically updating...");
766                                                 waypoint_schedulerelinkall();
767                                                 fclose(file);
768                                                 return false;
769                                         }
770                                 }
771                                 parse_comments = false;
772                         }
773                 }
774
775                 tokens = tokenizebyseparator(s, "*");
776
777                 if (tokens!=2)
778                 {
779                         // bad file format
780                         fclose(file);
781                         waypoint_schedulerelinkall(); // link all the autogenerated waypoints (teleporters)
782                         return false;
783                 }
784
785                 wp_from_pos     = stov(argv(0));
786                 wp_to_pos       = stov(argv(1));
787
788                 // Search "from" waypoint
789                 if(!wp_from || wp_from.origin!=wp_from_pos)
790                 {
791                         wp_from = findradius(wp_from_pos, 1);
792                         found = false;
793                         while(wp_from)
794                         {
795                                 if(vdist(wp_from.origin - wp_from_pos, <, 1))
796                                 if(wp_from.classname == "waypoint")
797                                 {
798                                         found = true;
799                                         break;
800                                 }
801                                 wp_from = wp_from.chain;
802                         }
803
804                         if(!found)
805                         {
806                                 LOG_TRACE("waypoint_load_links: couldn't find 'from' waypoint at ", vtos(wp_from_pos));
807                                 continue;
808                         }
809                 }
810
811                 // Search "to" waypoint
812                 wp_to = findradius(wp_to_pos, 1);
813                 found = false;
814                 while(wp_to)
815                 {
816                         if(vdist(wp_to.origin - wp_to_pos, <, 1))
817                         if(wp_to.classname == "waypoint")
818                         {
819                                 found = true;
820                                 break;
821                         }
822                         wp_to = wp_to.chain;
823                 }
824
825                 if(!found)
826                 {
827                         LOG_TRACE("waypoint_load_links: couldn't find 'to' waypoint at ", vtos(wp_to_pos));
828                         continue;
829                 }
830
831                 ++c;
832                 waypoint_addlink(wp_from, wp_to);
833         }
834
835         fclose(file);
836
837         LOG_TRACE("loaded ", ftos(c), " waypoint links from ", filename);
838
839         bool scheduled = false;
840         IL_EACH(g_waypoints, it.wpflags & WAYPOINTFLAG_ITEM,
841         {
842                 if (!it.wp00)
843                 {
844                         waypoint_schedulerelink(it);
845                         scheduled = true;
846                 }
847         });
848         if (scheduled)
849                 return false;
850
851         botframe_cachedwaypointlinks = true;
852         return true;
853 }
854
855 void waypoint_load_or_remove_links_hardwired(bool removal_mode)
856 {
857         string s;
858         float file, tokens, c = 0, found;
859         entity wp_from = NULL, wp_to;
860         vector wp_to_pos, wp_from_pos;
861
862         string gt_ext = GET_GAMETYPE_EXTENSION();
863
864         string filename = sprintf("maps/%s.waypoints.hardwired", strcat(mapname, gt_ext));
865         file = fopen(filename, FILE_READ);
866
867         if (gt_ext != "" && file < 0)
868         {
869                 // if race waypoint file doesn't exist load the default one
870                 filename = sprintf("maps/%s.waypoints.hardwired", mapname);
871                 file = fopen(filename, FILE_READ);
872         }
873
874         botframe_loadedforcedlinks = true;
875
876         if (file < 0)
877         {
878                 if(!removal_mode)
879                         LOG_TRACE("waypoint links load from ", filename, " failed");
880                 return;
881         }
882
883         while ((s = fgets(file)))
884         {
885                 if(substring(s, 0, 2)=="//")
886                         continue;
887
888                 if(substring(s, 0, 1)=="#")
889                         continue;
890
891                 tokens = tokenizebyseparator(s, "*");
892
893                 if (tokens!=2)
894                         continue;
895
896                 wp_from_pos     = stov(argv(0));
897                 wp_to_pos       = stov(argv(1));
898
899                 // Search "from" waypoint
900                 if(!wp_from || wp_from.origin!=wp_from_pos)
901                 {
902                         wp_from = findradius(wp_from_pos, 5);
903                         found = false;
904                         while(wp_from)
905                         {
906                                 if(vdist(wp_from.origin - wp_from_pos, <, 5))
907                                 if(wp_from.classname == "waypoint")
908                                 {
909                                         found = true;
910                                         break;
911                                 }
912                                 wp_from = wp_from.chain;
913                         }
914
915                         if(!found)
916                         {
917                                 if(!removal_mode)
918                                         LOG_INFO("NOTICE: Can not find origin waypoint for the hardwired link ", s, ". Path skipped");
919                                 continue;
920                         }
921                 }
922
923                 // Search "to" waypoint
924                 wp_to = findradius(wp_to_pos, 5);
925                 found = false;
926                 while(wp_to)
927                 {
928                         if(vdist(wp_to.origin - wp_to_pos, <, 5))
929                         if(wp_to.classname == "waypoint")
930                         {
931                                 found = true;
932                                 break;
933                         }
934                         wp_to = wp_to.chain;
935                 }
936
937                 if(!found)
938                 {
939                         if(!removal_mode)
940                                 LOG_INFO("NOTICE: Can not find destination waypoint for the hardwired link ", s, ". Path skipped");
941                         continue;
942                 }
943
944                 ++c;
945                 if(removal_mode)
946                 {
947                         waypoint_removelink(wp_from, wp_to);
948                         continue;
949                 }
950
951                 waypoint_addlink(wp_from, wp_to);
952                 wp_from.wphardwired = true;
953                 wp_to.wphardwired = true;
954                 waypoint_setupmodel(wp_from);
955                 waypoint_setupmodel(wp_to);
956         }
957
958         fclose(file);
959
960         LOG_TRACE(((removal_mode) ? "unloaded " : "loaded "),
961                 ftos(c), " waypoint links from maps/", mapname, ".waypoints.hardwired");
962 }
963
964 entity waypoint_get_link(entity w, float i)
965 {
966         switch(i)
967         {
968                 case  0:return w.wp00;
969                 case  1:return w.wp01;
970                 case  2:return w.wp02;
971                 case  3:return w.wp03;
972                 case  4:return w.wp04;
973                 case  5:return w.wp05;
974                 case  6:return w.wp06;
975                 case  7:return w.wp07;
976                 case  8:return w.wp08;
977                 case  9:return w.wp09;
978                 case 10:return w.wp10;
979                 case 11:return w.wp11;
980                 case 12:return w.wp12;
981                 case 13:return w.wp13;
982                 case 14:return w.wp14;
983                 case 15:return w.wp15;
984                 case 16:return w.wp16;
985                 case 17:return w.wp17;
986                 case 18:return w.wp18;
987                 case 19:return w.wp19;
988                 case 20:return w.wp20;
989                 case 21:return w.wp21;
990                 case 22:return w.wp22;
991                 case 23:return w.wp23;
992                 case 24:return w.wp24;
993                 case 25:return w.wp25;
994                 case 26:return w.wp26;
995                 case 27:return w.wp27;
996                 case 28:return w.wp28;
997                 case 29:return w.wp29;
998                 case 30:return w.wp30;
999                 case 31:return w.wp31;
1000                 default:return NULL;
1001         }
1002 }
1003
1004 // Save all waypoint links to a file
1005 void waypoint_save_links()
1006 {
1007         // temporarily remove hardwired links so they don't get saved among normal links
1008         waypoint_remove_links_hardwired();
1009
1010         string gt_ext = GET_GAMETYPE_EXTENSION();
1011
1012         string filename = sprintf("maps/%s.waypoints.cache", strcat(mapname, gt_ext));
1013         int file = fopen(filename, FILE_WRITE);
1014         if (file < 0)
1015         {
1016                 LOG_INFOF("waypoint link save to %s failed", filename);
1017                 return;
1018         }
1019
1020         fputs(file, strcat("//", "WAYPOINT_VERSION ", ftos_decimals(WAYPOINT_VERSION, 2), "\n"));
1021         if (waypoint_time != "")
1022                 fputs(file, strcat("//", "WAYPOINT_TIME ", waypoint_time, "\n"));
1023
1024         int c = 0;
1025         IL_EACH(g_waypoints, true,
1026         {
1027                 for(int j = 0; j < 32; ++j)
1028                 {
1029                         entity link = waypoint_get_link(it, j);
1030                         if(link)
1031                         {
1032                                 // NOTE: vtos rounds vector components to 1 decimal place
1033                                 string s = strcat(vtos(it.origin), "*", vtos(link.origin), "\n");
1034                                 fputs(file, s);
1035                                 ++c;
1036                         }
1037                 }
1038         });
1039         fclose(file);
1040
1041         botframe_cachedwaypointlinks = true;
1042
1043         LOG_INFOF("saved %d waypoint links to %s", c, filename);
1044
1045         waypoint_load_links_hardwired();
1046 }
1047
1048 // save waypoints to gamedir/data/maps/mapname.waypoints
1049 void waypoint_saveall()
1050 {
1051         string gt_ext = GET_GAMETYPE_EXTENSION();
1052
1053         string filename = sprintf("maps/%s.waypoints", strcat(mapname, gt_ext));
1054         int file = fopen(filename, FILE_WRITE);
1055         if (file < 0)
1056         {
1057                 waypoint_save_links(); // save anyway?
1058                 botframe_loadedforcedlinks = false;
1059
1060                 LOG_INFOF("waypoint links: save to %s failed", filename);
1061                 return;
1062         }
1063
1064         float sym = autocvar_g_waypointeditor_symmetrical;
1065         string sym_str = ftos(sym);
1066         if (sym == -1 || (sym == 1 && autocvar_g_waypointeditor_symmetrical_order >= 2))
1067         {
1068                 if (sym == 1)
1069                 {
1070                         sym_str = cons(sym_str, "-");
1071                         sym_str = cons(sym_str, "-");
1072                 }
1073                 else
1074                 {
1075                         sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_origin.x));
1076                         sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_origin.y));
1077                 }
1078                 if (autocvar_g_waypointeditor_symmetrical_order >= 2)
1079                         sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_order));
1080         }
1081         else if (autocvar_g_waypointeditor_symmetrical == -2)
1082         {
1083                 sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_axis.x));
1084                 sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_axis.y));
1085         }
1086
1087         // a group of 3 comments doesn't break compatibility with older Xonotic versions
1088         // (they are read as a waypoint with origin '0 0 0' and flag 0 though)
1089         fputs(file, strcat("//", "WAYPOINT_VERSION ", ftos_decimals(WAYPOINT_VERSION, 2), "\n"));
1090         fputs(file, strcat("//", "WAYPOINT_SYMMETRY ", sym_str, "\n"));
1091
1092         strcpy(waypoint_time, strftime(true, "%Y-%m-%d %H:%M:%S"));
1093         fputs(file, strcat("//", "WAYPOINT_TIME ", waypoint_time, "\n"));
1094         //fputs(file, strcat("//", "\n"));
1095         //fputs(file, strcat("//", "\n"));
1096         //fputs(file, strcat("//", "\n"));
1097
1098         int c = 0;
1099         IL_EACH(g_waypoints, true,
1100         {
1101                 if(it.wpflags & WAYPOINTFLAG_GENERATED)
1102                         continue;
1103
1104                 string s;
1105                 // NOTE: vtos rounds vector components to 1 decimal place
1106                 s = strcat(vtos(it.origin + it.mins), "\n");
1107                 s = strcat(s, vtos(it.origin + it.maxs));
1108                 s = strcat(s, "\n");
1109                 s = strcat(s, ftos(it.wpflags));
1110                 s = strcat(s, "\n");
1111                 fputs(file, s);
1112                 c++;
1113         });
1114         fclose(file);
1115         waypoint_save_links();
1116         botframe_loadedforcedlinks = false;
1117
1118         LOG_INFOF("saved %d waypoints to %s", c, filename);
1119 }
1120
1121 // load waypoints from file
1122 float waypoint_loadall()
1123 {
1124         string s;
1125         float file, cwp, cwb, fl;
1126         vector m1, m2;
1127         cwp = 0;
1128         cwb = 0;
1129
1130         string gt_ext = GET_GAMETYPE_EXTENSION();
1131
1132         string filename = sprintf("maps/%s.waypoints", strcat(mapname, gt_ext));
1133         file = fopen(filename, FILE_READ);
1134
1135         if (gt_ext != "" && file < 0)
1136         {
1137                 // if race waypoint file doesn't exist load the default one
1138                 filename = sprintf("maps/%s.waypoints", mapname);
1139                 file = fopen(filename, FILE_READ);
1140         }
1141
1142         if (file < 0)
1143         {
1144                 LOG_TRACE("waypoint load from ", filename, " failed");
1145                 return 0;
1146         }
1147
1148         bool parse_comments = true;
1149         float ver = 0;
1150         float sym = 0;
1151         float sym_param1 = 0, sym_param2 = 0, sym_param3 = 0;
1152
1153         while ((s = fgets(file)))
1154         {
1155                 if(parse_comments)
1156                 {
1157                         if(substring(s, 0, 2) == "//")
1158                         {
1159                                 if(substring(s, 2, 17) == "WAYPOINT_VERSION ")
1160                                         ver = stof(substring(s, 19, -1));
1161                                 else if(substring(s, 2, 18) == "WAYPOINT_SYMMETRY ")
1162                                 {
1163                                         int tokens = tokenizebyseparator(substring(s, 20, -1), " ");
1164                                         if (tokens) { sym = stof(argv(0)); }
1165                                         if (tokens > 1) { sym_param1 = stof(argv(1)); }
1166                                         if (tokens > 2) { sym_param2 = stof(argv(2)); }
1167                                         if (tokens > 3) { sym_param3 = stof(argv(3)); }
1168                                 }
1169                                 else if(substring(s, 2, 14) == "WAYPOINT_TIME ")
1170                                         strcpy(waypoint_time, substring(s, 16, -1));
1171                                 continue;
1172                         }
1173                         else
1174                         {
1175                                 if(floor(ver) < floor(WAYPOINT_VERSION))
1176                                 {
1177                                         LOG_TRACE("waypoints for this map are outdated");
1178                                         LOG_TRACE("please update them in the editor");
1179                                 }
1180                                 parse_comments = false;
1181                         }
1182                 }
1183                 m1 = stov(s);
1184                 s = fgets(file);
1185                 if (!s)
1186                         break;
1187                 m2 = stov(s);
1188                 s = fgets(file);
1189                 if (!s)
1190                         break;
1191                 fl = stof(s);
1192                 waypoint_spawn(m1, m2, fl);
1193                 if (m1 == m2)
1194                         cwp = cwp + 1;
1195                 else
1196                         cwb = cwb + 1;
1197         }
1198         fclose(file);
1199         LOG_TRACE("loaded ", ftos(cwp), " waypoints and ", ftos(cwb), " wayboxes from maps/", mapname, ".waypoints");
1200
1201         if (autocvar_g_waypointeditor && autocvar_g_waypointeditor_symmetrical_allowload)
1202         {
1203                 cvar_set("g_waypointeditor_symmetrical", ftos(sym));
1204                 if (sym == 1 && sym_param3 < 2)
1205                         cvar_set("g_waypointeditor_symmetrical_order", "0"); // make sure this is reset if not loaded
1206                 if (sym == -1 || (sym == 1 && sym_param3 >= 2))
1207                 {
1208                         string params;
1209                         if (sym == 1)
1210                                 params = cons("-", "-");
1211                         else
1212                         {
1213                                 params = cons(ftos(sym_param1), ftos(sym_param2));
1214                                 cvar_set("g_waypointeditor_symmetrical_origin", params);
1215                         }
1216                         cvar_set("g_waypointeditor_symmetrical_order", ftos(sym_param3));
1217                         LOG_INFO("Waypoint editor: loaded symmetry ", ftos(sym), " with origin ", params, " and order ", ftos(sym_param3));
1218                 }
1219                 else if (sym == -2)
1220                 {
1221                         string params = strcat(ftos(sym_param1), " ", ftos(sym_param2));
1222                         cvar_set("g_waypointeditor_symmetrical_axis", params);
1223                         LOG_INFO("Waypoint editor: loaded symmetry ", ftos(sym), " with axis ", params);
1224                 }
1225                 else
1226                         LOG_INFO("Waypoint editor: loaded symmetry ", ftos(sym));
1227                 LOG_INFO(strcat("g_waypointeditor_symmetrical", " has been set to ", cvar_string("g_waypointeditor_symmetrical")));
1228         }
1229
1230         return cwp + cwb;
1231 }
1232
1233 #define waypoint_fixorigin(position, tracetest_ent) \
1234         waypoint_fixorigin_down_dir(position, tracetest_ent, '0 0 -1')
1235
1236 vector waypoint_fixorigin_down_dir(vector position, entity tracetest_ent, vector down_dir)
1237 {
1238         vector endpos = position + down_dir * 3000;
1239         tracebox(position + '0 0 1', PL_MIN_CONST, PL_MAX_CONST, endpos, MOVE_NOMONSTERS, tracetest_ent);
1240         if(trace_startsolid)
1241                 tracebox(position + '0 0 1' * (1 - PL_MIN_CONST.z / 2), PL_MIN_CONST, PL_MAX_CONST, endpos, MOVE_NOMONSTERS, tracetest_ent);
1242         if(trace_startsolid)
1243                 tracebox(position + '0 0 1' * (1 - PL_MIN_CONST.z), PL_MIN_CONST, PL_MAX_CONST, endpos, MOVE_NOMONSTERS, tracetest_ent);
1244         if(trace_fraction < 1)
1245                 position = trace_endpos;
1246         return position;
1247 }
1248
1249 void waypoint_spawnforitem_force(entity e, vector org)
1250 {
1251         // Fix the waypoint altitude if necessary
1252         org = waypoint_fixorigin(org, NULL);
1253
1254         // don't spawn an item spawnfunc_waypoint if it already exists
1255         IL_EACH(g_waypoints, true,
1256         {
1257                 if(it.wpisbox)
1258                 {
1259                         if(boxesoverlap(org, org, it.absmin, it.absmax))
1260                         {
1261                                 e.nearestwaypoint = it;
1262                                 return;
1263                         }
1264                 }
1265                 else
1266                 {
1267                         if(vdist(it.origin - org, <, 16))
1268                         {
1269                                 e.nearestwaypoint = it;
1270                                 return;
1271                         }
1272                 }
1273         });
1274
1275         e.nearestwaypoint = waypoint_spawn(org, org, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_ITEM);
1276 }
1277
1278 void waypoint_spawnforitem(entity e)
1279 {
1280         if(!bot_waypoints_for_items)
1281                 return;
1282
1283         waypoint_spawnforitem_force(e, e.origin);
1284 }
1285
1286 void waypoint_spawnforteleporter_boxes(entity e, int teleport_flag, vector org1, vector org2, vector destination1, vector destination2, float timetaken)
1287 {
1288         entity w;
1289         entity dw;
1290         w = waypoint_spawn(org1, org2, WAYPOINTFLAG_GENERATED | teleport_flag | WAYPOINTFLAG_NORELINK);
1291         dw = waypoint_spawn(destination1, destination2, WAYPOINTFLAG_GENERATED);
1292         // one way link to the destination
1293         w.wp00 = dw;
1294         w.wp00mincost = timetaken; // this is just for jump pads
1295         // the teleporter's nearest spawnfunc_waypoint is this one
1296         // (teleporters are not goals, so this is probably useless)
1297         e.nearestwaypoint = w;
1298         e.nearestwaypointtimeout = -1;
1299 }
1300
1301 void waypoint_spawnforteleporter_wz(entity e, entity tracetest_ent)
1302 {
1303         float src_angle = e.warpzone_angles.x;
1304         while (src_angle < -180) src_angle += 360;
1305         while (src_angle > 180) src_angle -= 360;
1306
1307         float dest_angle = e.enemy.warpzone_angles.x;
1308         while (dest_angle < -180) dest_angle += 360;
1309         while (dest_angle > 180) dest_angle -= 360;
1310
1311         // no waypoints for warpzones pointing upwards, they can't be used by the bots
1312         if (src_angle == -90 || dest_angle == -90)
1313                 return;
1314
1315         makevectors(e.warpzone_angles);
1316         vector src = (e.absmin + e.absmax) * 0.5;
1317         src += ((e.warpzone_origin - src) * v_forward) * v_forward + 16 * v_right;
1318         vector down_dir_src = -v_up;
1319
1320         makevectors(e.enemy.warpzone_angles);
1321         vector dest = (e.enemy.absmin + e.enemy.absmax) * 0.5;
1322         dest += ((e.enemy.warpzone_origin - dest) * v_forward) * v_forward - 16 * v_right;
1323         vector down_dir_dest = -v_up;
1324
1325         int extra_flag = 0;
1326         // don't snap to the ground waypoints for source warpzones pointing downwards
1327         if (src_angle != 90)
1328         {
1329                 src = waypoint_fixorigin_down_dir(src, tracetest_ent, down_dir_src);
1330                 dest = waypoint_fixorigin_down_dir(dest, tracetest_ent, down_dir_dest);
1331                 // oblique warpzones need a jump otherwise bots gets stuck
1332                 if (src_angle != 0)
1333                         extra_flag = WAYPOINTFLAG_JUMP;
1334         }
1335
1336         waypoint_spawnforteleporter_boxes(e, WAYPOINTFLAG_TELEPORT | extra_flag, src, src, dest, dest, 0);
1337 }
1338
1339 void waypoint_spawnforteleporter(entity e, vector destination, float timetaken, entity tracetest_ent)
1340 {
1341         destination = waypoint_fixorigin(destination, tracetest_ent);
1342         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);
1343 }
1344
1345 entity waypoint_spawnpersonal(entity this, vector position)
1346 {
1347         entity w;
1348
1349         // drop the waypoint to a proper location:
1350         //   first move it up by a player height
1351         //   then move it down to hit the floor with player bbox size
1352         position = waypoint_fixorigin(position, this);
1353
1354         w = waypoint_spawn(position, position, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_PERSONAL);
1355         w.nearestwaypoint = NULL;
1356         w.nearestwaypointtimeout = 0;
1357         w.owner = this;
1358
1359         waypoint_schedulerelink(w);
1360
1361         return w;
1362 }
1363
1364 void waypoint_showlink(entity wp1, entity wp2, int display_type)
1365 {
1366         if (!(wp1 && wp2))
1367                 return;
1368
1369         if (wp1.wphardwired && wp2.wphardwired)
1370                 te_beam(NULL, wp1.origin, wp2.origin);
1371         else if (display_type == 1)
1372                 te_lightning2(NULL, wp1.origin, wp2.origin);
1373 }
1374
1375 void waypoint_showlinks_to(entity wp, int display_type)
1376 {
1377         IL_EACH(g_waypoints, it != wp,
1378         {
1379                 if (waypoint_islinked(it, wp))
1380                         waypoint_showlink(it, wp, display_type);
1381         });
1382 }
1383
1384 void waypoint_showlinks_from(entity wp, int display_type)
1385 {
1386         waypoint_showlink(wp.wp00, wp, display_type); waypoint_showlink(wp.wp16, wp, display_type);
1387         waypoint_showlink(wp.wp01, wp, display_type); waypoint_showlink(wp.wp17, wp, display_type);
1388         waypoint_showlink(wp.wp02, wp, display_type); waypoint_showlink(wp.wp18, wp, display_type);
1389         waypoint_showlink(wp.wp03, wp, display_type); waypoint_showlink(wp.wp19, wp, display_type);
1390         waypoint_showlink(wp.wp04, wp, display_type); waypoint_showlink(wp.wp20, wp, display_type);
1391         waypoint_showlink(wp.wp05, wp, display_type); waypoint_showlink(wp.wp21, wp, display_type);
1392         waypoint_showlink(wp.wp06, wp, display_type); waypoint_showlink(wp.wp22, wp, display_type);
1393         waypoint_showlink(wp.wp07, wp, display_type); waypoint_showlink(wp.wp23, wp, display_type);
1394         waypoint_showlink(wp.wp08, wp, display_type); waypoint_showlink(wp.wp24, wp, display_type);
1395         waypoint_showlink(wp.wp09, wp, display_type); waypoint_showlink(wp.wp25, wp, display_type);
1396         waypoint_showlink(wp.wp10, wp, display_type); waypoint_showlink(wp.wp26, wp, display_type);
1397         waypoint_showlink(wp.wp11, wp, display_type); waypoint_showlink(wp.wp27, wp, display_type);
1398         waypoint_showlink(wp.wp12, wp, display_type); waypoint_showlink(wp.wp28, wp, display_type);
1399         waypoint_showlink(wp.wp13, wp, display_type); waypoint_showlink(wp.wp29, wp, display_type);
1400         waypoint_showlink(wp.wp14, wp, display_type); waypoint_showlink(wp.wp30, wp, display_type);
1401         waypoint_showlink(wp.wp15, wp, display_type); waypoint_showlink(wp.wp31, wp, display_type);
1402 }
1403
1404 void botframe_showwaypointlinks()
1405 {
1406         if (time < botframe_waypointeditorlightningtime)
1407                 return;
1408         botframe_waypointeditorlightningtime = time + 0.5;
1409         FOREACH_CLIENT(IS_PLAYER(it) && !it.isbot,
1410         {
1411                 int display_type = 0;
1412                 entity head = navigation_findnearestwaypoint(it, false);
1413                 it.nearestwaypoint = head; // mainly useful for debug
1414                 it.nearestwaypointtimeout = time + 2; // while I'm at it...
1415                 if (IS_ONGROUND(it) || it.waterlevel > WATERLEVEL_NONE)
1416                         display_type = 1; // default
1417                 else if(head && (head.wphardwired))
1418                         display_type = 2; // only hardwired
1419
1420                 if (display_type)
1421                 {
1422                         //navigation_testtracewalk = true;
1423                         //print("currently selected WP is ", etos(head), "\n");
1424                         //navigation_testtracewalk = false;
1425                         if (head)
1426                         {
1427                                 te_lightning2(NULL, head.origin, it.origin);
1428                                 if(PHYS_INPUT_BUTTON_CROUCH(it))
1429                                         waypoint_showlinks_to(head, display_type);
1430                                 else
1431                                         waypoint_showlinks_from(head, display_type);
1432                         }
1433                 }
1434         });
1435 }
1436
1437 float botframe_autowaypoints_fixdown(vector v)
1438 {
1439         tracebox(v, PL_MIN_CONST, PL_MAX_CONST, v + '0 0 -64', MOVE_NOMONSTERS, NULL);
1440         if(trace_fraction >= 1)
1441                 return 0;
1442         return 1;
1443 }
1444
1445 float botframe_autowaypoints_createwp(vector v, entity p, .entity fld, float f)
1446 {
1447         IL_EACH(g_waypoints, boxesoverlap(v - '32 32 32', v + '32 32 32', it.absmin, it.absmax),
1448         {
1449                 // if a matching spawnfunc_waypoint already exists, don't add a duplicate
1450                 return 0;
1451         });
1452
1453         waypoint_schedulerelink(p.(fld) = waypoint_spawn(v, v, f));
1454         return 1;
1455 }
1456
1457 // return value:
1458 //    1 = WP created
1459 //    0 = no action needed
1460 //   -1 = temp fail, try from world too
1461 //   -2 = permanent fail, do not retry
1462 float botframe_autowaypoints_fix_from(entity p, float walkfromwp, entity wp, .entity fld)
1463 {
1464         // make it possible to go from p to wp, if we can
1465         // if wp is NULL, nearest is chosen
1466
1467         entity w;
1468         vector porg;
1469         float t, tmin, tmax;
1470         vector o;
1471         vector save;
1472
1473         if(!botframe_autowaypoints_fixdown(p.origin))
1474                 return -2;
1475         porg = trace_endpos;
1476
1477         if(wp)
1478         {
1479                 // if any WP w fulfills wp -> w -> porg and w is closer than wp, then switch from wp to w
1480
1481                 // if wp -> porg, then OK
1482                 float maxdist;
1483                 if(navigation_waypoint_will_link(wp.origin, porg, p, porg, 0, wp.origin, 0, walkfromwp, 1050))
1484                 {
1485                         // we may find a better one
1486                         maxdist = vlen(wp.origin - porg);
1487                 }
1488                 else
1489                 {
1490                         // accept any "good"
1491                         maxdist = 2100;
1492                 }
1493
1494                 float bestdist = maxdist;
1495                 IL_EACH(g_waypoints, it != wp && !(it.wpflags & WAYPOINTFLAG_NORELINK),
1496                 {
1497                         float d = vlen(wp.origin - it.origin) + vlen(it.origin - porg);
1498                         if(d < bestdist)
1499                         if(navigation_waypoint_will_link(wp.origin, it.origin, p, it.origin, 0, wp.origin, 0, walkfromwp, 1050))
1500                         if(navigation_waypoint_will_link(it.origin, porg, p, porg, 0, it.origin, 0, walkfromwp, 1050))
1501                         {
1502                                 bestdist = d;
1503                                 p.(fld) = it;
1504                         }
1505                 });
1506                 if(bestdist < maxdist)
1507                 {
1508                         LOG_INFO("update chain to new nearest WP ", etos(p.(fld)));
1509                         return 0;
1510                 }
1511
1512                 if(bestdist < 2100)
1513                 {
1514                         // we know maxdist < 2100
1515                         // so wp -> porg is still valid
1516                         // all is good
1517                         p.(fld) = wp;
1518                         return 0;
1519                 }
1520
1521                 // otherwise, no existing WP can fix our issues
1522         }
1523         else
1524         {
1525                 save = p.origin;
1526                 setorigin(p, porg);
1527                 w = navigation_findnearestwaypoint(p, walkfromwp);
1528                 setorigin(p, save);
1529                 if(w)
1530                 {
1531                         p.(fld) = w;
1532                         return 0;
1533                 }
1534         }
1535
1536         tmin = 0;
1537         tmax = 1;
1538         for (;;)
1539         {
1540                 if(tmax - tmin < 0.001)
1541                 {
1542                         // did not get a good candidate
1543                         return -1;
1544                 }
1545
1546                 t = (tmin + tmax) * 0.5;
1547                 o = antilag_takebackorigin(p, CS(p), time - t);
1548                 if(!botframe_autowaypoints_fixdown(o))
1549                         return -2;
1550                 o = trace_endpos;
1551
1552                 if(wp)
1553                 {
1554                         if(!navigation_waypoint_will_link(wp.origin, o, p, o, 0, wp.origin, 0, walkfromwp, 1050))
1555                         {
1556                                 // we cannot walk from wp.origin to o
1557                                 // get closer to tmax
1558                                 tmin = t;
1559                                 continue;
1560                         }
1561                 }
1562                 else
1563                 {
1564                         save = p.origin;
1565                         setorigin(p, o);
1566                         w = navigation_findnearestwaypoint(p, walkfromwp);
1567                         setorigin(p, save);
1568                         if(!w)
1569                         {
1570                                 // we cannot walk from any WP to o
1571                                 // get closer to tmax
1572                                 tmin = t;
1573                                 continue;
1574                         }
1575                 }
1576
1577                 // if we get here, o is valid regarding waypoints
1578                 // check if o is connected right to the player
1579                 // we break if it succeeds, as that means o is a good waypoint location
1580                 if(navigation_waypoint_will_link(o, porg, p, porg, 0, o, 0, walkfromwp, 1050))
1581                         break;
1582
1583                 // o is no good, we need to get closer to the player
1584                 tmax = t;
1585         }
1586
1587         LOG_INFO("spawning a waypoint for connecting to ", etos(wp));
1588         botframe_autowaypoints_createwp(o, p, fld, 0);
1589         return 1;
1590 }
1591
1592 // automatically create missing waypoints
1593 .entity botframe_autowaypoints_lastwp0, botframe_autowaypoints_lastwp1;
1594 void botframe_autowaypoints_fix(entity p, float walkfromwp, .entity fld)
1595 {
1596         float r = botframe_autowaypoints_fix_from(p, walkfromwp, p.(fld), fld);
1597         if(r != -1)
1598                 return;
1599         r = botframe_autowaypoints_fix_from(p, walkfromwp, NULL, fld);
1600         if(r != -1)
1601                 return;
1602
1603         LOG_INFO("emergency: got no good nearby WP to build a link from, starting a new chain");
1604         if(!botframe_autowaypoints_fixdown(p.origin))
1605                 return; // shouldn't happen, caught above
1606         botframe_autowaypoints_createwp(trace_endpos, p, fld, WAYPOINTFLAG_PROTECTED);
1607 }
1608
1609 void botframe_deleteuselesswaypoints()
1610 {
1611         IL_EACH(g_items, it.bot_pickup,
1612         {
1613                 // NOTE: this protects waypoints if they're the ONLY nearest
1614                 // waypoint. That's the intention.
1615                 navigation_findnearestwaypoint(it, false);  // Walk TO item.
1616                 navigation_findnearestwaypoint(it, true);  // Walk FROM item.
1617         });
1618         IL_EACH(g_waypoints, true,
1619         {
1620                 it.wpflags |= WAYPOINTFLAG_DEAD_END;
1621                 it.wpflags &= ~WAYPOINTFLAG_USEFUL;
1622                 // WP is useful if:
1623                 if (it.wpflags & WAYPOINTFLAG_ITEM)
1624                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1625                 if (it.wpflags & WAYPOINTFLAG_TELEPORT)
1626                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1627                 if (it.wpflags & WAYPOINTFLAG_LADDER)
1628                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1629                 if (it.wpflags & WAYPOINTFLAG_PROTECTED)
1630                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1631                 // b) WP is closest WP for an item/spawnpoint/other entity
1632                 //    This has been done above by protecting these WPs.
1633         });
1634         // c) There are w1, w, w2 so that w1 -> w, w -> w2 and not w1 -> w2.
1635         IL_EACH(g_waypoints, !(it.wpflags & WAYPOINTFLAG_PERSONAL),
1636         {
1637                 for (int m = 0; m < 32; ++m)
1638                 {
1639                         entity w = waypoint_get_link(it, m);
1640                         if (!w)
1641                                 break;
1642                         if (w.wpflags & WAYPOINTFLAG_PERSONAL)
1643                                 continue;
1644                         if (w.wpflags & WAYPOINTFLAG_USEFUL)
1645                                 continue;
1646                         for (int j = 0; j < 32; ++j)
1647                         {
1648                                 entity w2 = waypoint_get_link(w, j);
1649                                 if (!w2)
1650                                         break;
1651                                 if (it == w2)
1652                                         continue;
1653                                 if (w2.wpflags & WAYPOINTFLAG_PERSONAL)
1654                                         continue;
1655                                 // If we got here, it != w2 exist with it -> w
1656                                 // and w -> w2. That means the waypoint is not
1657                                 // a dead end.
1658                                 w.wpflags &= ~WAYPOINTFLAG_DEAD_END;
1659                                 for (int k = 0; k < 32; ++k)
1660                                 {
1661                                         if (waypoint_get_link(it, k) == w2)
1662                                                 continue;
1663                                         // IF WE GET HERE, w is proven useful
1664                                         // to get from it to w2!
1665                                         w.wpflags |= WAYPOINTFLAG_USEFUL;
1666                                         goto next;
1667                                 }
1668                         }
1669 LABEL(next)
1670                 }
1671         });
1672         // d) The waypoint is a dead end. Dead end waypoints must be kept as
1673         //     they are needed to complete routes while autowaypointing.
1674
1675         IL_EACH(g_waypoints, !(it.wpflags & (WAYPOINTFLAG_USEFUL | WAYPOINTFLAG_DEAD_END)),
1676         {
1677                 LOG_INFOF("Removed a waypoint at %v. Try again for more!", it.origin);
1678                 te_explosion(it.origin);
1679                 waypoint_remove(it);
1680                 break;
1681         });
1682
1683         IL_EACH(g_waypoints, true,
1684         {
1685                 it.wpflags &= ~(WAYPOINTFLAG_USEFUL | WAYPOINTFLAG_DEAD_END); // temp flag
1686         });
1687 }
1688
1689 void botframe_autowaypoints()
1690 {
1691         FOREACH_CLIENT(IS_PLAYER(it) && IS_REAL_CLIENT(it) && !IS_DEAD(it), {
1692                 // going back is broken, so only fix waypoints to walk TO the player
1693                 //botframe_autowaypoints_fix(p, false, botframe_autowaypoints_lastwp0);
1694                 botframe_autowaypoints_fix(it, true, botframe_autowaypoints_lastwp1);
1695                 //te_explosion(p.botframe_autowaypoints_lastwp0.origin);
1696         });
1697
1698         if (autocvar_g_waypointeditor_auto >= 2) {
1699                 botframe_deleteuselesswaypoints();
1700         }
1701 }
1702