When possible use simpler LOG_* macros instead of LOG_*F
[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/net_linked.qh>
17 #include <common/physics/player.qh>
18
19 #include <lib/warpzone/common.qh>
20 #include <lib/warpzone/util_server.qh>
21
22 .entity spawnpointmodel;
23 void waypoint_unreachable(entity pl)
24 {
25         IL_EACH(g_waypoints, true,
26         {
27                 it.colormod = '0.5 0.5 0.5';
28                 it.effects &= ~(EF_NODEPTHTEST | EF_RED | EF_BLUE);
29         });
30
31         entity e2 = navigation_findnearestwaypoint(pl, false);
32         if(!e2)
33         {
34                 LOG_INFO("Can't find any waypoint nearby\n");
35                 return;
36         }
37
38         navigation_markroutes(pl, e2);
39
40         int j = 0;
41         int m = 0;
42         IL_EACH(g_waypoints, it.wpcost >= 10000000,
43         {
44                 LOG_INFO("unreachable: ", etos(it), " ", vtos(it.origin), "\n");
45                 it.colormod_z = 8;
46                 it.effects |= EF_NODEPTHTEST | EF_BLUE;
47                 j++;
48                 m++;
49         });
50         if (j) LOG_INFOF("%d waypoints cannot be reached from here in any way (marked with blue light)\n", j);
51         navigation_markroutes_inverted(e2);
52
53         j = 0;
54         IL_EACH(g_waypoints, it.wpcost >= 10000000,
55         {
56                 LOG_INFO("cannot reach me: ", etos(it), " ", vtos(it.origin), "\n");
57                 it.colormod_x = 8;
58                 if (!(it.effects & EF_NODEPTHTEST))  // not already reported before
59                         m++;
60                 it.effects |= EF_NODEPTHTEST | EF_RED;
61                 j++;
62         });
63         if (j) LOG_INFOF("%d waypoints cannot walk to here in any way (marked with red light)\n", j);
64         if (m) LOG_INFOF("%d waypoints have been marked total\n", m);
65
66         j = 0;
67         IL_EACH(g_spawnpoints, true,
68         {
69                 if (navigation_findnearestwaypoint(it, false))
70                 {
71                         if(it.spawnpointmodel)
72                         {
73                                 delete(it.spawnpointmodel);
74                                 it.spawnpointmodel = NULL;
75                         }
76                 }
77                 else
78                 {
79                         if(!it.spawnpointmodel)
80                         {
81                                 tracebox(it.origin, PL_MIN_CONST, PL_MAX_CONST, it.origin - '0 0 512', MOVE_NOMONSTERS, NULL);
82                                 entity e = new(spawnpointmodel);
83                                 vector org = trace_endpos + eZ;
84                                 setorigin(e, org);
85                                 e.solid = SOLID_TRIGGER;
86                                 it.spawnpointmodel = e;
87                         }
88                         LOG_INFO("spawn without waypoint: ", etos(it), " ", vtos(it.origin), "\n");
89                         it.spawnpointmodel.effects |= EF_NODEPTHTEST;
90                         _setmodel(it.spawnpointmodel, pl.model);
91                         it.spawnpointmodel.frame = pl.frame;
92                         it.spawnpointmodel.skin = pl.skin;
93                         it.spawnpointmodel.colormap = pl.colormap;
94                         it.spawnpointmodel.colormod = pl.colormod;
95                         it.spawnpointmodel.glowmod = pl.glowmod;
96                         setsize(it.spawnpointmodel, PL_MIN_CONST, PL_MAX_CONST);
97                         j++;
98                 }
99         });
100         if (j) LOG_INFOF("%d spawnpoints have no nearest waypoint (marked by player model)\n", j);
101
102         j = 0;
103         IL_EACH(g_items, true,
104         {
105                 it.effects &= ~(EF_NODEPTHTEST | EF_RED | EF_BLUE);
106                 it.colormod = '0.5 0.5 0.5';
107         });
108         IL_EACH(g_items, true,
109         {
110                 if (navigation_findnearestwaypoint(it, false))
111                         continue;
112                 LOG_INFO("item without waypoint: ", etos(it), " ", vtos(it.origin), "\n");
113                 it.effects |= EF_NODEPTHTEST | EF_RED;
114                 it.colormod_x = 8;
115                 j++;
116         });
117         if (j) LOG_INFOF("%d items have no nearest waypoint and cannot be walked away from (marked with red light)\n", j);
118
119         j = 0;
120         IL_EACH(g_items, true,
121         {
122                 if (navigation_findnearestwaypoint(it, true))
123                         continue;
124                 LOG_INFO("item without waypoint: ", etos(it), " ", vtos(it.origin), "\n");
125                 it.effects |= EF_NODEPTHTEST | EF_BLUE;
126                 it.colormod_z = 8;
127                 j++;
128         });
129         if (j) LOG_INFOF("%d items have no nearest waypoint and cannot be walked to (marked with blue light)\n", j);
130 }
131
132 void waypoint_getSymmetricalAxis_cmd(entity caller, bool save, int arg_idx)
133 {
134         vector v1 = stov(argv(arg_idx++));
135         vector v2 = stov(argv(arg_idx++));
136         vector mid = (v1 + v2) / 2;
137
138         float diffy = (v2.y - v1.y);
139         float diffx = (v2.x - v1.x);
140         if (v1.y == v2.y)
141                 diffy = 0.000001;
142         if (v1.x == v2.x)
143                 diffx = 0.000001;
144         float m = - diffx / diffy;
145         float q = - m * mid.x + mid.y;
146         if (fabs(m) <= 0.000001) m = 0;
147         if (fabs(q) <= 0.000001) q = 0;
148
149         string axis_str =  strcat(ftos(m), " ", ftos(q));
150         if (save)
151                 cvar_set("g_waypointeditor_symmetrical_axis", axis_str);
152         axis_str = strcat("\"", axis_str, "\"");
153         sprint(caller, strcat("Axis of symmetry based on input points: ", axis_str, "\n"));
154         if (save)
155                 sprint(caller, sprintf(" ^3saved to %s\n", "g_waypointeditor_symmetrical_axis"));
156         if (save)
157         {
158                 cvar_set("g_waypointeditor_symmetrical", "-2");
159                 sprint(caller, strcat("g_waypointeditor_symmetrical", " has been set to ",
160                         cvar_string("g_waypointeditor_symmetrical"), "\n"));
161         }
162 }
163
164 void waypoint_getSymmetricalOrigin_cmd(entity caller, bool save, int arg_idx)
165 {
166         vector org = '0 0 0';
167         int ctf_flags = 0;
168         for (int i = 0; i < 6; i++)
169         {
170                 if (argv(arg_idx + i) != "")
171                         ctf_flags++;
172         }
173         if (ctf_flags < 2)
174         {
175                 ctf_flags = 0;
176                 org = vec2(havocbot_middlepoint);
177                 if (argv(arg_idx) != "")
178                         sprint(caller, "WARNING: Ignoring single input point\n");
179                 if (havocbot_middlepoint_radius == 0)
180                 {
181                         sprint(caller, "Origin of symmetry can't be automatically determined\n");
182                         return;
183                 }
184         }
185         else
186         {
187                 vector v1, v2, v3, v4, v5, v6;
188                 for (int i = 1; i <= ctf_flags; i++)
189                 {
190                         if (i == 1) { v1 = stov(argv(arg_idx++)); org = v1 / ctf_flags; }
191                         else if (i == 2) { v2 = stov(argv(arg_idx++)); org += v2 / ctf_flags; }
192                         else if (i == 3) { v3 = stov(argv(arg_idx++)); org += v3 / ctf_flags; }
193                         else if (i == 4) { v4 = stov(argv(arg_idx++)); org += v4 / ctf_flags; }
194                         else if (i == 5) { v5 = stov(argv(arg_idx++)); org += v5 / ctf_flags; }
195                         else if (i == 6) { v6 = stov(argv(arg_idx++)); org += v6 / ctf_flags; }
196                 }
197         }
198
199         if (fabs(org.x) <= 0.000001) org.x = 0;
200         if (fabs(org.y) <= 0.000001) org.y = 0;
201         string org_str = strcat(ftos(org.x), " ", ftos(org.y));
202         if (save)
203         {
204                 cvar_set("g_waypointeditor_symmetrical_origin", org_str);
205                 cvar_set("g_waypointeditor_symmetrical_order", ftos(ctf_flags));
206         }
207         org_str = strcat("\"", org_str, "\"");
208
209         if (ctf_flags < 2)
210                 sprint(caller, strcat("Origin of symmetry based on flag positions: ", org_str, "\n"));
211         else
212                 sprint(caller, strcat("Origin of symmetry based on input points: ", org_str, "\n"));
213         if (save)
214                 sprint(caller, sprintf(" ^3saved to %s\n", "g_waypointeditor_symmetrical_origin"));
215
216         if (ctf_flags < 2)
217                 sprint(caller, "Order of symmetry: 0 (autodetected)\n");
218         else
219                 sprint(caller, strcat("Order of symmetry: ", ftos(ctf_flags), "\n"));
220         if (save)
221                 sprint(caller, sprintf(" ^3saved to %s\n", "g_waypointeditor_symmetrical_order"));
222
223         if (save)
224         {
225                 if (ctf_flags < 2)
226                         cvar_set("g_waypointeditor_symmetrical", "0");
227                 else
228                         cvar_set("g_waypointeditor_symmetrical", "-1");
229                 sprint(caller, strcat("g_waypointeditor_symmetrical", " has been set to ",
230                         cvar_string("g_waypointeditor_symmetrical"), "\n"));
231         }
232 }
233
234 vector waypoint_getSymmetricalPoint(vector org, int ctf_flags)
235 {
236         vector new_org = org;
237         if (fabs(autocvar_g_waypointeditor_symmetrical) == 1)
238         {
239                 vector map_center = havocbot_middlepoint;
240                 if (autocvar_g_waypointeditor_symmetrical == -1)
241                         map_center = autocvar_g_waypointeditor_symmetrical_origin;
242
243                 new_org = Rotate(org - map_center, 360 * DEG2RAD / ctf_flags) + map_center;
244         }
245         else if (fabs(autocvar_g_waypointeditor_symmetrical) == 2)
246         {
247                 float m = havocbot_symmetry_axis_m;
248                 float q = havocbot_symmetry_axis_q;
249                 if (autocvar_g_waypointeditor_symmetrical == -2)
250                 {
251                         m = autocvar_g_waypointeditor_symmetrical_axis.x;
252                         q = autocvar_g_waypointeditor_symmetrical_axis.y;
253                 }
254
255                 new_org.x = (1 / (1 + m*m)) * ((1 - m*m) * org.x + 2 * m * org.y - 2 * m * q);
256                 new_org.y = (1 / (1 + m*m)) * (2 * m * org.x + (m*m - 1) * org.y + 2 * q);
257         }
258         new_org.z = org.z;
259         return new_org;
260 }
261
262 void waypoint_setupmodel(entity wp)
263 {
264         if (autocvar_g_waypointeditor)
265         {
266                 // TODO: add some sort of visible box in edit mode for box waypoints
267                 vector m1 = wp.mins;
268                 vector m2 = wp.maxs;
269                 setmodel(wp, MDL_WAYPOINT);
270                 setsize(wp, m1, m2);
271                 wp.effects = EF_LOWPRECISION;
272                 if (wp.wpflags & WAYPOINTFLAG_ITEM)
273                         wp.colormod = '1 0 0';
274                 else if (wp.wpflags & WAYPOINTFLAG_GENERATED)
275                         wp.colormod = '1 1 0';
276                 else if (wp.wphardwired)
277                         wp.colormod = '0.5 0 1';
278                 else
279                         wp.colormod = '1 1 1';
280         }
281         else
282                 wp.model = "";
283 }
284
285 entity waypoint_spawn(vector m1, vector m2, float f)
286 {
287         if(!(f & (WAYPOINTFLAG_PERSONAL | WAYPOINTFLAG_GENERATED)) && m1 == m2)
288         {
289                 vector em1 = m1 - '8 8 8';
290                 vector em2 = m2 + '8 8 8';
291                 IL_EACH(g_waypoints, boxesoverlap(em1, em2, it.absmin, it.absmax),
292                 {
293                         return it;
294                 });
295         }
296         // spawn only one destination waypoint for teleports teleporting player to the exact same spot
297         // otherwise links loaded from file would be applied only to the first destination
298         // waypoint since link format doesn't specify waypoint entities but just positions
299         if((f & WAYPOINTFLAG_GENERATED) && !(f & (WAYPOINTFLAG_NORELINK | WAYPOINTFLAG_PERSONAL)) && m1 == m2)
300         {
301                 IL_EACH(g_waypoints, boxesoverlap(m1, m2, it.absmin, it.absmax),
302                 {
303                         return it;
304                 });
305         }
306
307         entity w = new(waypoint);
308         IL_PUSH(g_waypoints, w);
309         w.dphitcontentsmask = DPCONTENTS_SOLID | DPCONTENTS_BODY | DPCONTENTS_PLAYERCLIP | DPCONTENTS_BOTCLIP;
310         w.wpflags = f;
311         w.solid = SOLID_TRIGGER;
312         setorigin(w, (m1 + m2) * 0.5);
313         setsize(w, m1 - w.origin, m2 - w.origin);
314         if (w.size)
315                 w.wpisbox = true;
316
317         if(!w.wpisbox)
318         {
319                 setsize(w, PL_MIN_CONST - '1 1 0', PL_MAX_CONST + '1 1 0');
320                 if(!move_out_of_solid(w))
321                 {
322                         if(!(f & WAYPOINTFLAG_GENERATED))
323                         {
324                                 LOG_TRACE("Killed a waypoint that was stuck in solid at ", vtos(w.origin));
325                                 delete(w);
326                                 return NULL;
327                         }
328                         else
329                         {
330                                 if(autocvar_developer)
331                                 {
332                                         LOG_INFO("A generated waypoint is stuck in solid at ", vtos(w.origin));
333                                         backtrace("Waypoint stuck");
334                                 }
335                         }
336                 }
337                 setsize(w, '0 0 0', '0 0 0');
338         }
339
340         waypoint_clearlinks(w);
341         //waypoint_schedulerelink(w);
342
343         waypoint_setupmodel(w);
344
345         return w;
346 }
347
348 void waypoint_spawn_fromeditor(entity pl)
349 {
350         entity e;
351         vector org = pl.origin;
352         int ctf_flags = havocbot_symmetry_origin_order;
353         bool sym = ((autocvar_g_waypointeditor_symmetrical > 0 && ctf_flags >= 2)
354                    || (autocvar_g_waypointeditor_symmetrical < 0));
355         if(autocvar_g_waypointeditor_symmetrical_order >= 2)
356                 ctf_flags = autocvar_g_waypointeditor_symmetrical_order;
357         if (sym && ctf_flags < 2)
358                 ctf_flags = 2;
359         int wp_num = ctf_flags;
360
361         if(!PHYS_INPUT_BUTTON_CROUCH(pl))
362         {
363                 // snap waypoint to item's origin if close enough
364                 IL_EACH(g_items, true,
365                 {
366                         vector item_org = (it.absmin + it.absmax) * 0.5;
367                         item_org.z = it.absmin.z - PL_MIN_CONST.z;
368                         if (vlen(item_org - org) < 20)
369                         {
370                                 org = item_org;
371                                 break;
372                         }
373                 });
374         }
375
376         LABEL(add_wp);
377         e = waypoint_spawn(org, org, 0);
378         if(!e)
379         {
380                 LOG_INFOF("Couldn't spawn waypoint at %v\n", org);
381                 return;
382         }
383         waypoint_schedulerelink(e);
384         bprint(strcat("Waypoint spawned at ", vtos(e.origin), "\n"));
385         if(sym)
386         {
387                 org = waypoint_getSymmetricalPoint(e.origin, ctf_flags);
388                 if (vdist(org - pl.origin, >, 32))
389                 {
390                         if(wp_num > 2)
391                                 wp_num--;
392                         else
393                                 sym = false;
394                         goto add_wp;
395                 }
396         }
397 }
398
399 void waypoint_remove(entity wp)
400 {
401         IL_EACH(g_waypoints, it != wp,
402         {
403                 if (waypoint_islinked(it, wp))
404                         waypoint_removelink(it, wp);
405         });
406         delete(wp);
407 }
408
409 void waypoint_remove_fromeditor(entity pl)
410 {
411         entity e = navigation_findnearestwaypoint(pl, false);
412
413         int ctf_flags = havocbot_symmetry_origin_order;
414         bool sym = ((autocvar_g_waypointeditor_symmetrical > 0 && ctf_flags >= 2)
415                    || (autocvar_g_waypointeditor_symmetrical < 0));
416         if(autocvar_g_waypointeditor_symmetrical_order >= 2)
417                 ctf_flags = autocvar_g_waypointeditor_symmetrical_order;
418         if (sym && ctf_flags < 2)
419                 ctf_flags = 2;
420         int wp_num = ctf_flags;
421
422         LABEL(remove_wp);
423         if (!e) return;
424         if (e.wpflags & WAYPOINTFLAG_GENERATED) return;
425
426         if (e.wphardwired)
427         {
428                 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");
429                 return;
430         }
431
432         entity wp_sym = NULL;
433         if (sym)
434         {
435                 vector org = waypoint_getSymmetricalPoint(e.origin, ctf_flags);
436                 FOREACH_ENTITY_CLASS("waypoint", !(it.wpflags & WAYPOINTFLAG_GENERATED), {
437                         if(vdist(org - it.origin, <, 3))
438                         {
439                                 wp_sym = it;
440                                 break;
441                         }
442                 });
443         }
444
445         bprint(strcat("Waypoint removed at ", vtos(e.origin), "\n"));
446         waypoint_remove(e);
447
448         if (sym && wp_sym)
449         {
450                 e = wp_sym;
451                 if(wp_num > 2)
452                         wp_num--;
453                 else
454                         sym = false;
455                 goto remove_wp;
456         }
457 }
458
459 void waypoint_removelink(entity from, entity to)
460 {
461         if (from == to || (from.wpflags & WAYPOINTFLAG_NORELINK))
462                 return;
463
464         entity fromwp31_prev = from.wp31;
465
466         switch (waypoint_getlinknum(from, to))
467         {
468                 // fallthrough all the way
469                 case  0: from.wp00 = from.wp01; from.wp00mincost = from.wp01mincost;
470                 case  1: from.wp01 = from.wp02; from.wp01mincost = from.wp02mincost;
471                 case  2: from.wp02 = from.wp03; from.wp02mincost = from.wp03mincost;
472                 case  3: from.wp03 = from.wp04; from.wp03mincost = from.wp04mincost;
473                 case  4: from.wp04 = from.wp05; from.wp04mincost = from.wp05mincost;
474                 case  5: from.wp05 = from.wp06; from.wp05mincost = from.wp06mincost;
475                 case  6: from.wp06 = from.wp07; from.wp06mincost = from.wp07mincost;
476                 case  7: from.wp07 = from.wp08; from.wp07mincost = from.wp08mincost;
477                 case  8: from.wp08 = from.wp09; from.wp08mincost = from.wp09mincost;
478                 case  9: from.wp09 = from.wp10; from.wp09mincost = from.wp10mincost;
479                 case 10: from.wp10 = from.wp11; from.wp10mincost = from.wp11mincost;
480                 case 11: from.wp11 = from.wp12; from.wp11mincost = from.wp12mincost;
481                 case 12: from.wp12 = from.wp13; from.wp12mincost = from.wp13mincost;
482                 case 13: from.wp13 = from.wp14; from.wp13mincost = from.wp14mincost;
483                 case 14: from.wp14 = from.wp15; from.wp14mincost = from.wp15mincost;
484                 case 15: from.wp15 = from.wp16; from.wp15mincost = from.wp16mincost;
485                 case 16: from.wp16 = from.wp17; from.wp16mincost = from.wp17mincost;
486                 case 17: from.wp17 = from.wp18; from.wp17mincost = from.wp18mincost;
487                 case 18: from.wp18 = from.wp19; from.wp18mincost = from.wp19mincost;
488                 case 19: from.wp19 = from.wp20; from.wp19mincost = from.wp20mincost;
489                 case 20: from.wp20 = from.wp21; from.wp20mincost = from.wp21mincost;
490                 case 21: from.wp21 = from.wp22; from.wp21mincost = from.wp22mincost;
491                 case 22: from.wp22 = from.wp23; from.wp22mincost = from.wp23mincost;
492                 case 23: from.wp23 = from.wp24; from.wp23mincost = from.wp24mincost;
493                 case 24: from.wp24 = from.wp25; from.wp24mincost = from.wp25mincost;
494                 case 25: from.wp25 = from.wp26; from.wp25mincost = from.wp26mincost;
495                 case 26: from.wp26 = from.wp27; from.wp26mincost = from.wp27mincost;
496                 case 27: from.wp27 = from.wp28; from.wp27mincost = from.wp28mincost;
497                 case 28: from.wp28 = from.wp29; from.wp28mincost = from.wp29mincost;
498                 case 29: from.wp29 = from.wp30; from.wp29mincost = from.wp30mincost;
499                 case 30: from.wp30 = from.wp31; from.wp30mincost = from.wp31mincost;
500                 case 31: from.wp31 = NULL; from.wp31mincost = 10000000;
501         }
502
503         if (fromwp31_prev && !from.wp31)
504                 waypoint_schedulerelink(from);
505 }
506
507 int waypoint_getlinknum(entity from, entity to)
508 {
509         if (from.wp00 == to) return  0; if (from.wp01 == to) return  1; if (from.wp02 == to) return  2; if (from.wp03 == to) return  3;
510         if (from.wp04 == to) return  4; if (from.wp05 == to) return  5; if (from.wp06 == to) return  6; if (from.wp07 == to) return  7;
511         if (from.wp08 == to) return  8; if (from.wp09 == to) return  9; if (from.wp10 == to) return 10; if (from.wp11 == to) return 11;
512         if (from.wp12 == to) return 12; if (from.wp13 == to) return 13; if (from.wp14 == to) return 14; if (from.wp15 == to) return 15;
513         if (from.wp16 == to) return 16; if (from.wp17 == to) return 17; if (from.wp18 == to) return 18; if (from.wp19 == to) return 19;
514         if (from.wp20 == to) return 20; if (from.wp21 == to) return 21; if (from.wp22 == to) return 22; if (from.wp23 == to) return 23;
515         if (from.wp24 == to) return 24; if (from.wp25 == to) return 25; if (from.wp26 == to) return 26; if (from.wp27 == to) return 27;
516         if (from.wp28 == to) return 28; if (from.wp29 == to) return 29; if (from.wp30 == to) return 30; if (from.wp31 == to) return 31;
517         return -1;
518 }
519
520 bool waypoint_islinked(entity from, entity to)
521 {
522         return (waypoint_getlinknum(from, to) >= 0);
523 }
524
525 void waypoint_updatecost_foralllinks()
526 {
527         IL_EACH(g_waypoints, !(it.wpflags & WAYPOINTFLAG_TELEPORT),
528         {
529                 if(it.wp00) it.wp00mincost = waypoint_getlinkcost(it, it.wp00);
530                 if(it.wp01) it.wp01mincost = waypoint_getlinkcost(it, it.wp01);
531                 if(it.wp02) it.wp02mincost = waypoint_getlinkcost(it, it.wp02);
532                 if(it.wp03) it.wp03mincost = waypoint_getlinkcost(it, it.wp03);
533                 if(it.wp04) it.wp04mincost = waypoint_getlinkcost(it, it.wp04);
534                 if(it.wp05) it.wp05mincost = waypoint_getlinkcost(it, it.wp05);
535                 if(it.wp06) it.wp06mincost = waypoint_getlinkcost(it, it.wp06);
536                 if(it.wp07) it.wp07mincost = waypoint_getlinkcost(it, it.wp07);
537                 if(it.wp08) it.wp08mincost = waypoint_getlinkcost(it, it.wp08);
538                 if(it.wp09) it.wp09mincost = waypoint_getlinkcost(it, it.wp09);
539                 if(it.wp10) it.wp10mincost = waypoint_getlinkcost(it, it.wp10);
540                 if(it.wp11) it.wp11mincost = waypoint_getlinkcost(it, it.wp11);
541                 if(it.wp12) it.wp12mincost = waypoint_getlinkcost(it, it.wp12);
542                 if(it.wp13) it.wp13mincost = waypoint_getlinkcost(it, it.wp13);
543                 if(it.wp14) it.wp14mincost = waypoint_getlinkcost(it, it.wp14);
544                 if(it.wp15) it.wp15mincost = waypoint_getlinkcost(it, it.wp15);
545                 if(it.wp16) it.wp16mincost = waypoint_getlinkcost(it, it.wp16);
546                 if(it.wp17) it.wp17mincost = waypoint_getlinkcost(it, it.wp17);
547                 if(it.wp18) it.wp18mincost = waypoint_getlinkcost(it, it.wp18);
548                 if(it.wp19) it.wp19mincost = waypoint_getlinkcost(it, it.wp19);
549                 if(it.wp20) it.wp20mincost = waypoint_getlinkcost(it, it.wp20);
550                 if(it.wp21) it.wp21mincost = waypoint_getlinkcost(it, it.wp21);
551                 if(it.wp22) it.wp22mincost = waypoint_getlinkcost(it, it.wp22);
552                 if(it.wp23) it.wp23mincost = waypoint_getlinkcost(it, it.wp23);
553                 if(it.wp24) it.wp24mincost = waypoint_getlinkcost(it, it.wp24);
554                 if(it.wp25) it.wp25mincost = waypoint_getlinkcost(it, it.wp25);
555                 if(it.wp26) it.wp26mincost = waypoint_getlinkcost(it, it.wp26);
556                 if(it.wp27) it.wp27mincost = waypoint_getlinkcost(it, it.wp27);
557                 if(it.wp28) it.wp28mincost = waypoint_getlinkcost(it, it.wp28);
558                 if(it.wp29) it.wp29mincost = waypoint_getlinkcost(it, it.wp29);
559                 if(it.wp30) it.wp30mincost = waypoint_getlinkcost(it, it.wp30);
560                 if(it.wp31) it.wp31mincost = waypoint_getlinkcost(it, it.wp31);
561         });
562 }
563
564 float waypoint_getlinearcost(float dist)
565 {
566         if(skill >= autocvar_bot_ai_bunnyhop_skilloffset)
567                 return dist / (autocvar_sv_maxspeed * 1.25);
568         return dist / autocvar_sv_maxspeed;
569 }
570 float waypoint_getlinearcost_underwater(float dist)
571 {
572         // NOTE: underwater speed factor is hardcoded in the engine too, see SV_WaterMove
573         return dist / (autocvar_sv_maxspeed * 0.7);
574 }
575
576 float waypoint_gettravelcost(vector from, vector to, entity from_ent, entity to_ent)
577 {
578         bool submerged_from = navigation_check_submerged_state(from_ent, from);
579         bool submerged_to = navigation_check_submerged_state(to_ent, to);
580
581         if (submerged_from && submerged_to)
582                 return waypoint_getlinearcost_underwater(vlen(to - from));
583
584         float c = waypoint_getlinearcost(vlen(to - from));
585
586         float height = from.z - to.z;
587         if(height > jumpheight_vec.z && autocvar_sv_gravity > 0)
588         {
589                 float height_cost = sqrt(height / (autocvar_sv_gravity / 2));
590                 c = waypoint_getlinearcost(vlen(vec2(to - from))); // xy distance cost
591                 if(height_cost > c)
592                         c = height_cost;
593         }
594
595         if (submerged_from || submerged_to)
596                 return (c + waypoint_getlinearcost_underwater(vlen(to - from))) / 2;
597         return c;
598 }
599
600 float waypoint_getlinkcost(entity from, entity to)
601 {
602         vector v1 = from.origin;
603         vector v2 = to.origin;
604         if (from.wpisbox)
605         {
606                 vector m1 = from.absmin, m2 = from.absmax;
607                 v1.x = bound(m1.x, v2.x, m2.x);
608                 v1.y = bound(m1.y, v2.y, m2.y);
609                 v1.z = bound(m1.z, v2.z, m2.z);
610         }
611         if (to.wpisbox)
612         {
613                 vector m1 = to.absmin, m2 = to.absmax;
614                 v2.x = bound(m1.x, v1.x, m2.x);
615                 v2.y = bound(m1.y, v1.y, m2.y);
616                 v2.z = bound(m1.z, v1.z, m2.z);
617         }
618         return waypoint_gettravelcost(v1, v2, from, to);
619 }
620
621 // add a new link to the spawnfunc_waypoint, replacing the furthest link it already has
622 // if c == -1 automatically determine cost of the link
623 void waypoint_addlink_customcost(entity from, entity to, float c)
624 {
625         if (from == to || waypoint_islinked(from, to))
626                 return;
627         if (c == -1 && (from.wpflags & WAYPOINTFLAG_NORELINK))
628                 return;
629
630         if(c == -1)
631                 c = waypoint_getlinkcost(from, to);
632
633         if (from.wp31mincost < c) return;
634         if (from.wp30mincost < c) {from.wp31 = to;from.wp31mincost = c;return;} from.wp31 = from.wp30;from.wp31mincost = from.wp30mincost;
635         if (from.wp29mincost < c) {from.wp30 = to;from.wp30mincost = c;return;} from.wp30 = from.wp29;from.wp30mincost = from.wp29mincost;
636         if (from.wp28mincost < c) {from.wp29 = to;from.wp29mincost = c;return;} from.wp29 = from.wp28;from.wp29mincost = from.wp28mincost;
637         if (from.wp27mincost < c) {from.wp28 = to;from.wp28mincost = c;return;} from.wp28 = from.wp27;from.wp28mincost = from.wp27mincost;
638         if (from.wp26mincost < c) {from.wp27 = to;from.wp27mincost = c;return;} from.wp27 = from.wp26;from.wp27mincost = from.wp26mincost;
639         if (from.wp25mincost < c) {from.wp26 = to;from.wp26mincost = c;return;} from.wp26 = from.wp25;from.wp26mincost = from.wp25mincost;
640         if (from.wp24mincost < c) {from.wp25 = to;from.wp25mincost = c;return;} from.wp25 = from.wp24;from.wp25mincost = from.wp24mincost;
641         if (from.wp23mincost < c) {from.wp24 = to;from.wp24mincost = c;return;} from.wp24 = from.wp23;from.wp24mincost = from.wp23mincost;
642         if (from.wp22mincost < c) {from.wp23 = to;from.wp23mincost = c;return;} from.wp23 = from.wp22;from.wp23mincost = from.wp22mincost;
643         if (from.wp21mincost < c) {from.wp22 = to;from.wp22mincost = c;return;} from.wp22 = from.wp21;from.wp22mincost = from.wp21mincost;
644         if (from.wp20mincost < c) {from.wp21 = to;from.wp21mincost = c;return;} from.wp21 = from.wp20;from.wp21mincost = from.wp20mincost;
645         if (from.wp19mincost < c) {from.wp20 = to;from.wp20mincost = c;return;} from.wp20 = from.wp19;from.wp20mincost = from.wp19mincost;
646         if (from.wp18mincost < c) {from.wp19 = to;from.wp19mincost = c;return;} from.wp19 = from.wp18;from.wp19mincost = from.wp18mincost;
647         if (from.wp17mincost < c) {from.wp18 = to;from.wp18mincost = c;return;} from.wp18 = from.wp17;from.wp18mincost = from.wp17mincost;
648         if (from.wp16mincost < c) {from.wp17 = to;from.wp17mincost = c;return;} from.wp17 = from.wp16;from.wp17mincost = from.wp16mincost;
649         if (from.wp15mincost < c) {from.wp16 = to;from.wp16mincost = c;return;} from.wp16 = from.wp15;from.wp16mincost = from.wp15mincost;
650         if (from.wp14mincost < c) {from.wp15 = to;from.wp15mincost = c;return;} from.wp15 = from.wp14;from.wp15mincost = from.wp14mincost;
651         if (from.wp13mincost < c) {from.wp14 = to;from.wp14mincost = c;return;} from.wp14 = from.wp13;from.wp14mincost = from.wp13mincost;
652         if (from.wp12mincost < c) {from.wp13 = to;from.wp13mincost = c;return;} from.wp13 = from.wp12;from.wp13mincost = from.wp12mincost;
653         if (from.wp11mincost < c) {from.wp12 = to;from.wp12mincost = c;return;} from.wp12 = from.wp11;from.wp12mincost = from.wp11mincost;
654         if (from.wp10mincost < c) {from.wp11 = to;from.wp11mincost = c;return;} from.wp11 = from.wp10;from.wp11mincost = from.wp10mincost;
655         if (from.wp09mincost < c) {from.wp10 = to;from.wp10mincost = c;return;} from.wp10 = from.wp09;from.wp10mincost = from.wp09mincost;
656         if (from.wp08mincost < c) {from.wp09 = to;from.wp09mincost = c;return;} from.wp09 = from.wp08;from.wp09mincost = from.wp08mincost;
657         if (from.wp07mincost < c) {from.wp08 = to;from.wp08mincost = c;return;} from.wp08 = from.wp07;from.wp08mincost = from.wp07mincost;
658         if (from.wp06mincost < c) {from.wp07 = to;from.wp07mincost = c;return;} from.wp07 = from.wp06;from.wp07mincost = from.wp06mincost;
659         if (from.wp05mincost < c) {from.wp06 = to;from.wp06mincost = c;return;} from.wp06 = from.wp05;from.wp06mincost = from.wp05mincost;
660         if (from.wp04mincost < c) {from.wp05 = to;from.wp05mincost = c;return;} from.wp05 = from.wp04;from.wp05mincost = from.wp04mincost;
661         if (from.wp03mincost < c) {from.wp04 = to;from.wp04mincost = c;return;} from.wp04 = from.wp03;from.wp04mincost = from.wp03mincost;
662         if (from.wp02mincost < c) {from.wp03 = to;from.wp03mincost = c;return;} from.wp03 = from.wp02;from.wp03mincost = from.wp02mincost;
663         if (from.wp01mincost < c) {from.wp02 = to;from.wp02mincost = c;return;} from.wp02 = from.wp01;from.wp02mincost = from.wp01mincost;
664         if (from.wp00mincost < c) {from.wp01 = to;from.wp01mincost = c;return;} from.wp01 = from.wp00;from.wp01mincost = from.wp00mincost;
665         from.wp00 = to;from.wp00mincost = c;return;
666 }
667
668 void waypoint_addlink(entity from, entity to)
669 {
670         waypoint_addlink_customcost(from, to, -1);
671 }
672
673 // relink this spawnfunc_waypoint
674 // (precompile a list of all reachable waypoints from this spawnfunc_waypoint)
675 // (SLOW!)
676 void waypoint_think(entity this)
677 {
678         vector sv = '0 0 0', sv2 = '0 0 0', ev = '0 0 0', ev2 = '0 0 0', dv;
679         float sv2_height = 0, ev2_height = 0;
680
681         bot_calculate_stepheightvec();
682
683         int dphitcontentsmask_save = this.dphitcontentsmask;
684         this.dphitcontentsmask = DPCONTENTS_SOLID | DPCONTENTS_BODY | DPCONTENTS_PLAYERCLIP | DPCONTENTS_BOTCLIP;
685
686         bot_navigation_movemode = ((autocvar_bot_navigation_ignoreplayers) ? MOVE_NOMONSTERS : MOVE_NORMAL);
687
688         //dprint("waypoint_think wpisbox = ", ftos(this.wpisbox), "\n");
689         IL_EACH(g_waypoints, this != it,
690         {
691                 if (boxesoverlap(this.absmin, this.absmax, it.absmin, it.absmax))
692                 {
693                         waypoint_addlink(this, it);
694                         waypoint_addlink(it, this);
695                 }
696                 else
697                 {
698                         ++relink_total;
699                         if(!checkpvs(this.origin, it))
700                         {
701                                 ++relink_pvsculled;
702                                 continue;
703                         }
704
705                         sv = set_tracewalk_dest_2(this, it.origin);
706                         sv2 = tracewalk_dest;
707                         sv2_height = tracewalk_dest_height;
708                         ev = set_tracewalk_dest_2(it, this.origin);
709                         ev2 = tracewalk_dest;
710                         ev2_height = tracewalk_dest_height;
711
712                         dv = ev - sv;
713                         dv.z = 0;
714                         if(vdist(dv, >=, 1050)) // max search distance in XY
715                         {
716                                 ++relink_lengthculled;
717                                 continue;
718                         }
719
720                         navigation_testtracewalk = 0;
721
722                         //traceline(this.origin, it.origin, false, NULL);
723                         //if (trace_fraction == 1)
724                         if (this.wpisbox)
725                                 relink_walkculled += 0.5;
726                         else
727                         {
728                                 if (tracewalk(this, sv, PL_MIN_CONST, PL_MAX_CONST, ev2, ev2_height, MOVE_NOMONSTERS))
729                                         waypoint_addlink(this, it);
730                                 else
731                                         relink_walkculled += 0.5;
732                         }
733
734                         if (it.wpisbox)
735                                 relink_walkculled += 0.5;
736                         else
737                         {
738                                 if (tracewalk(this, ev, PL_MIN_CONST, PL_MAX_CONST, sv2, sv2_height, MOVE_NOMONSTERS))
739                                         waypoint_addlink(it, this);
740                                 else
741                                         relink_walkculled += 0.5;
742                         }
743                 }
744         });
745         navigation_testtracewalk = 0;
746         this.wplinked = true;
747         this.dphitcontentsmask = dphitcontentsmask_save;
748 }
749
750 void waypoint_clearlinks(entity wp)
751 {
752         // clear links to other waypoints
753         float f = 10000000;
754         wp.wp00 = wp.wp01 = wp.wp02 = wp.wp03 = wp.wp04 = wp.wp05 = wp.wp06 = wp.wp07 = NULL;
755         wp.wp08 = wp.wp09 = wp.wp10 = wp.wp11 = wp.wp12 = wp.wp13 = wp.wp14 = wp.wp15 = NULL;
756         wp.wp16 = wp.wp17 = wp.wp18 = wp.wp19 = wp.wp20 = wp.wp21 = wp.wp22 = wp.wp23 = NULL;
757         wp.wp24 = wp.wp25 = wp.wp26 = wp.wp27 = wp.wp28 = wp.wp29 = wp.wp30 = wp.wp31 = NULL;
758
759         wp.wp00mincost = wp.wp01mincost = wp.wp02mincost = wp.wp03mincost = wp.wp04mincost = wp.wp05mincost = wp.wp06mincost = wp.wp07mincost = f;
760         wp.wp08mincost = wp.wp09mincost = wp.wp10mincost = wp.wp11mincost = wp.wp12mincost = wp.wp13mincost = wp.wp14mincost = wp.wp15mincost = f;
761         wp.wp16mincost = wp.wp17mincost = wp.wp18mincost = wp.wp19mincost = wp.wp20mincost = wp.wp21mincost = wp.wp22mincost = wp.wp23mincost = f;
762         wp.wp24mincost = wp.wp25mincost = wp.wp26mincost = wp.wp27mincost = wp.wp28mincost = wp.wp29mincost = wp.wp30mincost = wp.wp31mincost = f;
763
764         wp.wplinked = false;
765 }
766
767 // tell a spawnfunc_waypoint to relink
768 void waypoint_schedulerelink(entity wp)
769 {
770         if (wp == NULL)
771                 return;
772
773         waypoint_setupmodel(wp);
774         wp.wpisbox = vdist(wp.size, >, 0);
775         wp.enemy = NULL;
776         if (!(wp.wpflags & WAYPOINTFLAG_PERSONAL))
777                 wp.owner = NULL;
778         if (!(wp.wpflags & WAYPOINTFLAG_NORELINK))
779                 waypoint_clearlinks(wp);
780         // schedule an actual relink on next frame
781         setthink(wp, waypoint_think);
782         wp.nextthink = time;
783         wp.effects = EF_LOWPRECISION;
784 }
785
786 // spawnfunc_waypoint map entity
787 spawnfunc(waypoint)
788 {
789         IL_PUSH(g_waypoints, this);
790
791         setorigin(this, this.origin);
792         // schedule a relink after other waypoints have had a chance to spawn
793         waypoint_clearlinks(this);
794         //waypoint_schedulerelink(this);
795 }
796
797 // tell all waypoints to relink
798 // actually this is useful only to update relink_* stats
799 void waypoint_schedulerelinkall()
800 {
801         relink_total = relink_walkculled = relink_pvsculled = relink_lengthculled = 0;
802         IL_EACH(g_waypoints, true,
803         {
804                 waypoint_schedulerelink(it);
805         });
806         waypoint_load_links_hardwired();
807 }
808
809 #define GET_GAMETYPE_EXTENSION() ((g_race) ? ".race" : "")
810
811 // Load waypoint links from file
812 bool waypoint_load_links()
813 {
814         string s;
815         float file, tokens, c = 0, found;
816         entity wp_from = NULL, wp_to;
817         vector wp_to_pos, wp_from_pos;
818
819         string gt_ext = GET_GAMETYPE_EXTENSION();
820
821         string filename = sprintf("maps/%s.waypoints.cache", strcat(mapname, gt_ext));
822         file = fopen(filename, FILE_READ);
823
824         if (gt_ext != "" && file < 0)
825         {
826                 // if race waypoint file doesn't exist load the default one
827                 filename = sprintf("maps/%s.waypoints.cache", mapname);
828                 file = fopen(filename, FILE_READ);
829         }
830
831         if (file < 0)
832         {
833                 LOG_TRACE("waypoint links load from ", filename, " failed");
834                 waypoint_schedulerelinkall();
835                 return false;
836         }
837
838         bool parse_comments = true;
839         float ver = 0;
840         string links_time = string_null;
841
842         while ((s = fgets(file)))
843         {
844                 if(parse_comments)
845                 {
846                         if(substring(s, 0, 2) == "//")
847                         {
848                                 if(substring(s, 2, 17) == "WAYPOINT_VERSION ")
849                                         ver = stof(substring(s, 19, -1));
850                                 else if(substring(s, 2, 14) == "WAYPOINT_TIME ")
851                                         links_time = substring(s, 16, -1);
852                                 continue;
853                         }
854                         else
855                         {
856                                 if(ver < WAYPOINT_VERSION || links_time != waypoint_time)
857                                 {
858                                         if (links_time != waypoint_time)
859                                                 LOG_TRACE("waypoint links for this map are not made for these waypoints.");
860                                         else
861                                                 LOG_TRACE("waypoint links for this map are outdated.");
862                                         if (g_assault)
863                                         {
864                                                 LOG_TRACE("Assault waypoint links need to be manually updated in the editor");
865                                         }
866                                         else
867                                         {
868                                                 LOG_TRACE("automatically updating...");
869                                                 waypoint_schedulerelinkall();
870                                                 fclose(file);
871                                                 return false;
872                                         }
873                                 }
874                                 parse_comments = false;
875                         }
876                 }
877
878                 tokens = tokenizebyseparator(s, "*");
879
880                 if (tokens!=2)
881                 {
882                         // bad file format
883                         fclose(file);
884                         waypoint_schedulerelinkall(); // link all the autogenerated waypoints (teleporters)
885                         return false;
886                 }
887
888                 wp_from_pos     = stov(argv(0));
889                 wp_to_pos       = stov(argv(1));
890
891                 // Search "from" waypoint
892                 if(!wp_from || wp_from.origin!=wp_from_pos)
893                 {
894                         wp_from = findradius(wp_from_pos, 1);
895                         found = false;
896                         while(wp_from)
897                         {
898                                 if(vdist(wp_from.origin - wp_from_pos, <, 1))
899                                 if(wp_from.classname == "waypoint")
900                                 {
901                                         found = true;
902                                         break;
903                                 }
904                                 wp_from = wp_from.chain;
905                         }
906
907                         if(!found)
908                         {
909                                 LOG_TRACE("waypoint_load_links: couldn't find 'from' waypoint at ", vtos(wp_from_pos));
910                                 continue;
911                         }
912                 }
913
914                 // Search "to" waypoint
915                 wp_to = findradius(wp_to_pos, 1);
916                 found = false;
917                 while(wp_to)
918                 {
919                         if(vdist(wp_to.origin - wp_to_pos, <, 1))
920                         if(wp_to.classname == "waypoint")
921                         {
922                                 found = true;
923                                 break;
924                         }
925                         wp_to = wp_to.chain;
926                 }
927
928                 if(!found)
929                 {
930                         LOG_TRACE("waypoint_load_links: couldn't find 'to' waypoint at ", vtos(wp_to_pos));
931                         continue;
932                 }
933
934                 ++c;
935                 waypoint_addlink(wp_from, wp_to);
936         }
937
938         fclose(file);
939
940         LOG_TRACE("loaded ", ftos(c), " waypoint links from ", filename);
941
942         bool scheduled = false;
943         IL_EACH(g_waypoints, it.wpflags & WAYPOINTFLAG_ITEM,
944         {
945                 if (!it.wp00)
946                 {
947                         waypoint_schedulerelink(it);
948                         scheduled = true;
949                 }
950         });
951         if (scheduled)
952                 return false;
953
954         botframe_cachedwaypointlinks = true;
955         return true;
956 }
957
958 void waypoint_load_or_remove_links_hardwired(bool removal_mode)
959 {
960         string s;
961         float file, tokens, c = 0, found;
962         entity wp_from = NULL, wp_to;
963         vector wp_to_pos, wp_from_pos;
964
965         string gt_ext = GET_GAMETYPE_EXTENSION();
966
967         string filename = sprintf("maps/%s.waypoints.hardwired", strcat(mapname, gt_ext));
968         file = fopen(filename, FILE_READ);
969
970         if (gt_ext != "" && file < 0)
971         {
972                 // if race waypoint file doesn't exist load the default one
973                 filename = sprintf("maps/%s.waypoints.hardwired", mapname);
974                 file = fopen(filename, FILE_READ);
975         }
976
977         botframe_loadedforcedlinks = true;
978
979         if (file < 0)
980         {
981                 if(!removal_mode)
982                         LOG_TRACE("waypoint links load from ", filename, " failed");
983                 return;
984         }
985
986         while ((s = fgets(file)))
987         {
988                 if(substring(s, 0, 2)=="//")
989                         continue;
990
991                 if(substring(s, 0, 1)=="#")
992                         continue;
993
994                 tokens = tokenizebyseparator(s, "*");
995
996                 if (tokens!=2)
997                         continue;
998
999                 wp_from_pos     = stov(argv(0));
1000                 wp_to_pos       = stov(argv(1));
1001
1002                 // Search "from" waypoint
1003                 if(!wp_from || wp_from.origin!=wp_from_pos)
1004                 {
1005                         wp_from = findradius(wp_from_pos, 5);
1006                         found = false;
1007                         while(wp_from)
1008                         {
1009                                 if(vdist(wp_from.origin - wp_from_pos, <, 5))
1010                                 if(wp_from.classname == "waypoint")
1011                                 {
1012                                         found = true;
1013                                         break;
1014                                 }
1015                                 wp_from = wp_from.chain;
1016                         }
1017
1018                         if(!found)
1019                         {
1020                                 if(!removal_mode)
1021                                         LOG_INFO("NOTICE: Can not find origin waypoint for the hardwired link ", s, ". Path skipped");
1022                                 continue;
1023                         }
1024                 }
1025
1026                 // Search "to" waypoint
1027                 wp_to = findradius(wp_to_pos, 5);
1028                 found = false;
1029                 while(wp_to)
1030                 {
1031                         if(vdist(wp_to.origin - wp_to_pos, <, 5))
1032                         if(wp_to.classname == "waypoint")
1033                         {
1034                                 found = true;
1035                                 break;
1036                         }
1037                         wp_to = wp_to.chain;
1038                 }
1039
1040                 if(!found)
1041                 {
1042                         if(!removal_mode)
1043                                 LOG_INFO("NOTICE: Can not find destination waypoint for the hardwired link ", s, ". Path skipped");
1044                         continue;
1045                 }
1046
1047                 ++c;
1048                 if(removal_mode)
1049                 {
1050                         waypoint_removelink(wp_from, wp_to);
1051                         continue;
1052                 }
1053
1054                 waypoint_addlink(wp_from, wp_to);
1055                 wp_from.wphardwired = true;
1056                 wp_to.wphardwired = true;
1057                 waypoint_setupmodel(wp_from);
1058                 waypoint_setupmodel(wp_to);
1059         }
1060
1061         fclose(file);
1062
1063         LOG_TRACE(((removal_mode) ? "unloaded " : "loaded "),
1064                 ftos(c), " waypoint links from maps/", mapname, ".waypoints.hardwired");
1065 }
1066
1067 entity waypoint_get_link(entity w, float i)
1068 {
1069         switch(i)
1070         {
1071                 case  0:return w.wp00;
1072                 case  1:return w.wp01;
1073                 case  2:return w.wp02;
1074                 case  3:return w.wp03;
1075                 case  4:return w.wp04;
1076                 case  5:return w.wp05;
1077                 case  6:return w.wp06;
1078                 case  7:return w.wp07;
1079                 case  8:return w.wp08;
1080                 case  9:return w.wp09;
1081                 case 10:return w.wp10;
1082                 case 11:return w.wp11;
1083                 case 12:return w.wp12;
1084                 case 13:return w.wp13;
1085                 case 14:return w.wp14;
1086                 case 15:return w.wp15;
1087                 case 16:return w.wp16;
1088                 case 17:return w.wp17;
1089                 case 18:return w.wp18;
1090                 case 19:return w.wp19;
1091                 case 20:return w.wp20;
1092                 case 21:return w.wp21;
1093                 case 22:return w.wp22;
1094                 case 23:return w.wp23;
1095                 case 24:return w.wp24;
1096                 case 25:return w.wp25;
1097                 case 26:return w.wp26;
1098                 case 27:return w.wp27;
1099                 case 28:return w.wp28;
1100                 case 29:return w.wp29;
1101                 case 30:return w.wp30;
1102                 case 31:return w.wp31;
1103                 default:return NULL;
1104         }
1105 }
1106
1107 // Save all waypoint links to a file
1108 void waypoint_save_links()
1109 {
1110         // temporarily remove hardwired links so they don't get saved among normal links
1111         waypoint_remove_links_hardwired();
1112
1113         string gt_ext = GET_GAMETYPE_EXTENSION();
1114
1115         string filename = sprintf("maps/%s.waypoints.cache", strcat(mapname, gt_ext));
1116         int file = fopen(filename, FILE_WRITE);
1117         if (file < 0)
1118         {
1119                 LOG_INFOF("waypoint link save to %s failed", filename);
1120                 return;
1121         }
1122
1123         fputs(file, strcat("//", "WAYPOINT_VERSION ", ftos_decimals(WAYPOINT_VERSION, 2), "\n"));
1124         if (waypoint_time != "")
1125                 fputs(file, strcat("//", "WAYPOINT_TIME ", waypoint_time, "\n"));
1126
1127         int c = 0;
1128         IL_EACH(g_waypoints, true,
1129         {
1130                 for(int j = 0; j < 32; ++j)
1131                 {
1132                         entity link = waypoint_get_link(it, j);
1133                         if(link)
1134                         {
1135                                 // NOTE: vtos rounds vector components to 1 decimal place
1136                                 string s = strcat(vtos(it.origin), "*", vtos(link.origin), "\n");
1137                                 fputs(file, s);
1138                                 ++c;
1139                         }
1140                 }
1141         });
1142         fclose(file);
1143
1144         botframe_cachedwaypointlinks = true;
1145
1146         LOG_INFOF("saved %d waypoint links to %s", c, filename);
1147
1148         waypoint_load_links_hardwired();
1149 }
1150
1151 // save waypoints to gamedir/data/maps/mapname.waypoints
1152 void waypoint_saveall()
1153 {
1154         string gt_ext = GET_GAMETYPE_EXTENSION();
1155
1156         string filename = sprintf("maps/%s.waypoints", strcat(mapname, gt_ext));
1157         int file = fopen(filename, FILE_WRITE);
1158         if (file < 0)
1159         {
1160                 waypoint_save_links(); // save anyway?
1161                 botframe_loadedforcedlinks = false;
1162
1163                 LOG_INFOF("waypoint links: save to %s failed", filename);
1164                 return;
1165         }
1166
1167         float sym = autocvar_g_waypointeditor_symmetrical;
1168         string sym_str = ftos(sym);
1169         if (sym == -1 || (sym == 1 && autocvar_g_waypointeditor_symmetrical_order >= 2))
1170         {
1171                 if (sym == 1)
1172                 {
1173                         sym_str = cons(sym_str, "-");
1174                         sym_str = cons(sym_str, "-");
1175                 }
1176                 else
1177                 {
1178                         sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_origin.x));
1179                         sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_origin.y));
1180                 }
1181                 if (autocvar_g_waypointeditor_symmetrical_order >= 2)
1182                         sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_order));
1183         }
1184         else if (autocvar_g_waypointeditor_symmetrical == -2)
1185         {
1186                 sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_axis.x));
1187                 sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_axis.y));
1188         }
1189
1190         // a group of 3 comments doesn't break compatibility with older Xonotic versions
1191         // (they are read as a waypoint with origin '0 0 0' and flag 0 though)
1192         fputs(file, strcat("//", "WAYPOINT_VERSION ", ftos_decimals(WAYPOINT_VERSION, 2), "\n"));
1193         fputs(file, strcat("//", "WAYPOINT_SYMMETRY ", sym_str, "\n"));
1194
1195         strcpy(waypoint_time, strftime(true, "%Y-%m-%d %H:%M:%S"));
1196         fputs(file, strcat("//", "WAYPOINT_TIME ", waypoint_time, "\n"));
1197         //fputs(file, strcat("//", "\n"));
1198         //fputs(file, strcat("//", "\n"));
1199         //fputs(file, strcat("//", "\n"));
1200
1201         int c = 0;
1202         IL_EACH(g_waypoints, true,
1203         {
1204                 if(it.wpflags & WAYPOINTFLAG_GENERATED)
1205                         continue;
1206
1207                 string s;
1208                 // NOTE: vtos rounds vector components to 1 decimal place
1209                 s = strcat(vtos(it.origin + it.mins), "\n");
1210                 s = strcat(s, vtos(it.origin + it.maxs));
1211                 s = strcat(s, "\n");
1212                 s = strcat(s, ftos(it.wpflags));
1213                 s = strcat(s, "\n");
1214                 fputs(file, s);
1215                 c++;
1216         });
1217         fclose(file);
1218         waypoint_save_links();
1219         botframe_loadedforcedlinks = false;
1220
1221         LOG_INFOF("saved %d waypoints to %s", c, filename);
1222 }
1223
1224 // load waypoints from file
1225 float waypoint_loadall()
1226 {
1227         string s;
1228         float file, cwp, cwb, fl;
1229         vector m1, m2;
1230         cwp = 0;
1231         cwb = 0;
1232
1233         string gt_ext = GET_GAMETYPE_EXTENSION();
1234
1235         string filename = sprintf("maps/%s.waypoints", strcat(mapname, gt_ext));
1236         file = fopen(filename, FILE_READ);
1237
1238         if (gt_ext != "" && file < 0)
1239         {
1240                 // if race waypoint file doesn't exist load the default one
1241                 filename = sprintf("maps/%s.waypoints", mapname);
1242                 file = fopen(filename, FILE_READ);
1243         }
1244
1245         if (file < 0)
1246         {
1247                 LOG_TRACE("waypoint load from ", filename, " failed");
1248                 return 0;
1249         }
1250
1251         bool parse_comments = true;
1252         float ver = 0;
1253         float sym = 0;
1254         float sym_param1 = 0, sym_param2 = 0, sym_param3 = 0;
1255
1256         while ((s = fgets(file)))
1257         {
1258                 if(parse_comments)
1259                 {
1260                         if(substring(s, 0, 2) == "//")
1261                         {
1262                                 if(substring(s, 2, 17) == "WAYPOINT_VERSION ")
1263                                         ver = stof(substring(s, 19, -1));
1264                                 else if(substring(s, 2, 18) == "WAYPOINT_SYMMETRY ")
1265                                 {
1266                                         int tokens = tokenizebyseparator(substring(s, 20, -1), " ");
1267                                         if (tokens) { sym = stof(argv(0)); }
1268                                         if (tokens > 1) { sym_param1 = stof(argv(1)); }
1269                                         if (tokens > 2) { sym_param2 = stof(argv(2)); }
1270                                         if (tokens > 3) { sym_param3 = stof(argv(3)); }
1271                                 }
1272                                 else if(substring(s, 2, 14) == "WAYPOINT_TIME ")
1273                                         strcpy(waypoint_time, substring(s, 16, -1));
1274                                 continue;
1275                         }
1276                         else
1277                         {
1278                                 if(floor(ver) < floor(WAYPOINT_VERSION))
1279                                 {
1280                                         LOG_TRACE("waypoints for this map are outdated");
1281                                         LOG_TRACE("please update them in the editor");
1282                                 }
1283                                 parse_comments = false;
1284                         }
1285                 }
1286                 m1 = stov(s);
1287                 s = fgets(file);
1288                 if (!s)
1289                         break;
1290                 m2 = stov(s);
1291                 s = fgets(file);
1292                 if (!s)
1293                         break;
1294                 fl = stof(s);
1295                 waypoint_spawn(m1, m2, fl);
1296                 if (m1 == m2)
1297                         cwp = cwp + 1;
1298                 else
1299                         cwb = cwb + 1;
1300         }
1301         fclose(file);
1302         LOG_TRACE("loaded ", ftos(cwp), " waypoints and ", ftos(cwb), " wayboxes from maps/", mapname, ".waypoints");
1303
1304         if (autocvar_g_waypointeditor && autocvar_g_waypointeditor_symmetrical_allowload)
1305         {
1306                 cvar_set("g_waypointeditor_symmetrical", ftos(sym));
1307                 if (sym == 1 && sym_param3 < 2)
1308                         cvar_set("g_waypointeditor_symmetrical_order", "0"); // make sure this is reset if not loaded
1309                 if (sym == -1 || (sym == 1 && sym_param3 >= 2))
1310                 {
1311                         string params;
1312                         if (sym == 1)
1313                                 params = cons("-", "-");
1314                         else
1315                         {
1316                                 params = cons(ftos(sym_param1), ftos(sym_param2));
1317                                 cvar_set("g_waypointeditor_symmetrical_origin", params);
1318                         }
1319                         cvar_set("g_waypointeditor_symmetrical_order", ftos(sym_param3));
1320                         LOG_INFO("Waypoint editor: loaded symmetry ", ftos(sym), " with origin ", params, " and order ", ftos(sym_param3));
1321                 }
1322                 else if (sym == -2)
1323                 {
1324                         string params = strcat(ftos(sym_param1), " ", ftos(sym_param2));
1325                         cvar_set("g_waypointeditor_symmetrical_axis", params);
1326                         LOG_INFO("Waypoint editor: loaded symmetry ", ftos(sym), " with axis ", params);
1327                 }
1328                 else
1329                         LOG_INFO("Waypoint editor: loaded symmetry ", ftos(sym));
1330                 LOG_INFO(strcat("g_waypointeditor_symmetrical", " has been set to ", cvar_string("g_waypointeditor_symmetrical")));
1331         }
1332
1333         return cwp + cwb;
1334 }
1335
1336 #define waypoint_fixorigin(position, tracetest_ent) \
1337         waypoint_fixorigin_down_dir(position, tracetest_ent, '0 0 -1')
1338
1339 vector waypoint_fixorigin_down_dir(vector position, entity tracetest_ent, vector down_dir)
1340 {
1341         vector endpos = position + down_dir * 3000;
1342         tracebox(position + '0 0 1', PL_MIN_CONST, PL_MAX_CONST, endpos, MOVE_NOMONSTERS, tracetest_ent);
1343         if(trace_startsolid)
1344                 tracebox(position + '0 0 1' * (1 - PL_MIN_CONST.z / 2), PL_MIN_CONST, PL_MAX_CONST, endpos, MOVE_NOMONSTERS, tracetest_ent);
1345         if(trace_startsolid)
1346                 tracebox(position + '0 0 1' * (1 - PL_MIN_CONST.z), PL_MIN_CONST, PL_MAX_CONST, endpos, MOVE_NOMONSTERS, tracetest_ent);
1347         if(trace_fraction < 1)
1348                 position = trace_endpos;
1349         return position;
1350 }
1351
1352 void waypoint_spawnforitem_force(entity e, vector org)
1353 {
1354         // Fix the waypoint altitude if necessary
1355         org = waypoint_fixorigin(org, NULL);
1356
1357         // don't spawn an item spawnfunc_waypoint if it already exists
1358         IL_EACH(g_waypoints, true,
1359         {
1360                 if(it.wpisbox)
1361                 {
1362                         if(boxesoverlap(org, org, it.absmin, it.absmax))
1363                         {
1364                                 e.nearestwaypoint = it;
1365                                 return;
1366                         }
1367                 }
1368                 else
1369                 {
1370                         if(vdist(it.origin - org, <, 16))
1371                         {
1372                                 e.nearestwaypoint = it;
1373                                 return;
1374                         }
1375                 }
1376         });
1377
1378         e.nearestwaypoint = waypoint_spawn(org, org, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_ITEM);
1379 }
1380
1381 void waypoint_spawnforitem(entity e)
1382 {
1383         if(!bot_waypoints_for_items)
1384                 return;
1385
1386         waypoint_spawnforitem_force(e, e.origin);
1387 }
1388
1389 void waypoint_spawnforteleporter_boxes(entity e, int teleport_flag, vector org1, vector org2, vector destination1, vector destination2, float timetaken)
1390 {
1391         entity w;
1392         entity dw;
1393         w = waypoint_spawn(org1, org2, WAYPOINTFLAG_GENERATED | teleport_flag | WAYPOINTFLAG_NORELINK);
1394         dw = waypoint_spawn(destination1, destination2, WAYPOINTFLAG_GENERATED);
1395         // one way link to the destination
1396         w.wp00 = dw;
1397         w.wp00mincost = timetaken; // this is just for jump pads
1398         // the teleporter's nearest spawnfunc_waypoint is this one
1399         // (teleporters are not goals, so this is probably useless)
1400         e.nearestwaypoint = w;
1401         e.nearestwaypointtimeout = -1;
1402 }
1403
1404 void waypoint_spawnforteleporter_wz(entity e, entity tracetest_ent)
1405 {
1406         float src_angle = e.warpzone_angles.x;
1407         while (src_angle < -180) src_angle += 360;
1408         while (src_angle > 180) src_angle -= 360;
1409
1410         float dest_angle = e.enemy.warpzone_angles.x;
1411         while (dest_angle < -180) dest_angle += 360;
1412         while (dest_angle > 180) dest_angle -= 360;
1413
1414         // no waypoints for warpzones pointing upwards, they can't be used by the bots
1415         if (src_angle == -90 || dest_angle == -90)
1416                 return;
1417
1418         makevectors(e.warpzone_angles);
1419         vector src = (e.absmin + e.absmax) * 0.5;
1420         src += ((e.warpzone_origin - src) * v_forward) * v_forward + 16 * v_right;
1421         vector down_dir_src = -v_up;
1422
1423         makevectors(e.enemy.warpzone_angles);
1424         vector dest = (e.enemy.absmin + e.enemy.absmax) * 0.5;
1425         dest += ((e.enemy.warpzone_origin - dest) * v_forward) * v_forward - 16 * v_right;
1426         vector down_dir_dest = -v_up;
1427
1428         int extra_flag = 0;
1429         // don't snap to the ground waypoints for source warpzones pointing downwards
1430         if (src_angle != 90)
1431         {
1432                 src = waypoint_fixorigin_down_dir(src, tracetest_ent, down_dir_src);
1433                 dest = waypoint_fixorigin_down_dir(dest, tracetest_ent, down_dir_dest);
1434                 // oblique warpzones need a jump otherwise bots gets stuck
1435                 if (src_angle != 0)
1436                         extra_flag = WAYPOINTFLAG_JUMP;
1437         }
1438
1439         waypoint_spawnforteleporter_boxes(e, WAYPOINTFLAG_TELEPORT | extra_flag, src, src, dest, dest, 0);
1440 }
1441
1442 void waypoint_spawnforteleporter(entity e, vector destination, float timetaken, entity tracetest_ent)
1443 {
1444         destination = waypoint_fixorigin(destination, tracetest_ent);
1445         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);
1446 }
1447
1448 entity waypoint_spawnpersonal(entity this, vector position)
1449 {
1450         entity w;
1451
1452         // drop the waypoint to a proper location:
1453         //   first move it up by a player height
1454         //   then move it down to hit the floor with player bbox size
1455         position = waypoint_fixorigin(position, this);
1456
1457         w = waypoint_spawn(position, position, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_PERSONAL);
1458         w.nearestwaypoint = NULL;
1459         w.nearestwaypointtimeout = 0;
1460         w.owner = this;
1461
1462         waypoint_schedulerelink(w);
1463
1464         return w;
1465 }
1466
1467 void waypoint_showlink(entity wp1, entity wp2, int display_type)
1468 {
1469         if (!(wp1 && wp2))
1470                 return;
1471
1472         if (wp1.wphardwired && wp2.wphardwired)
1473                 te_beam(NULL, wp1.origin, wp2.origin);
1474         else if (display_type == 1)
1475                 te_lightning2(NULL, wp1.origin, wp2.origin);
1476 }
1477
1478 void waypoint_showlinks_to(entity wp, int display_type)
1479 {
1480         IL_EACH(g_waypoints, it != wp,
1481         {
1482                 if (waypoint_islinked(it, wp))
1483                         waypoint_showlink(it, wp, display_type);
1484         });
1485 }
1486
1487 void waypoint_showlinks_from(entity wp, int display_type)
1488 {
1489         waypoint_showlink(wp.wp00, wp, display_type); waypoint_showlink(wp.wp16, wp, display_type);
1490         waypoint_showlink(wp.wp01, wp, display_type); waypoint_showlink(wp.wp17, wp, display_type);
1491         waypoint_showlink(wp.wp02, wp, display_type); waypoint_showlink(wp.wp18, wp, display_type);
1492         waypoint_showlink(wp.wp03, wp, display_type); waypoint_showlink(wp.wp19, wp, display_type);
1493         waypoint_showlink(wp.wp04, wp, display_type); waypoint_showlink(wp.wp20, wp, display_type);
1494         waypoint_showlink(wp.wp05, wp, display_type); waypoint_showlink(wp.wp21, wp, display_type);
1495         waypoint_showlink(wp.wp06, wp, display_type); waypoint_showlink(wp.wp22, wp, display_type);
1496         waypoint_showlink(wp.wp07, wp, display_type); waypoint_showlink(wp.wp23, wp, display_type);
1497         waypoint_showlink(wp.wp08, wp, display_type); waypoint_showlink(wp.wp24, wp, display_type);
1498         waypoint_showlink(wp.wp09, wp, display_type); waypoint_showlink(wp.wp25, wp, display_type);
1499         waypoint_showlink(wp.wp10, wp, display_type); waypoint_showlink(wp.wp26, wp, display_type);
1500         waypoint_showlink(wp.wp11, wp, display_type); waypoint_showlink(wp.wp27, wp, display_type);
1501         waypoint_showlink(wp.wp12, wp, display_type); waypoint_showlink(wp.wp28, wp, display_type);
1502         waypoint_showlink(wp.wp13, wp, display_type); waypoint_showlink(wp.wp29, wp, display_type);
1503         waypoint_showlink(wp.wp14, wp, display_type); waypoint_showlink(wp.wp30, wp, display_type);
1504         waypoint_showlink(wp.wp15, wp, display_type); waypoint_showlink(wp.wp31, wp, display_type);
1505 }
1506
1507 void crosshair_trace_waypoints(entity pl)
1508 {
1509         IL_EACH(g_waypoints, true, {
1510                 it.solid = SOLID_BSP;
1511                 if (!it.wpisbox)
1512                         setsize(it, '-16 -16 -16', '16 16 16');
1513         });
1514
1515         crosshair_trace(pl);
1516
1517         IL_EACH(g_waypoints, true, {
1518                 it.solid = SOLID_TRIGGER;
1519                 if (!it.wpisbox)
1520                         setsize(it, '0 0 0', '0 0 0');
1521         });
1522         if (trace_ent.classname != "waypoint")
1523                 trace_ent = NULL;
1524 }
1525
1526 void botframe_showwaypointlinks()
1527 {
1528         if (time < botframe_waypointeditorlightningtime)
1529                 return;
1530         botframe_waypointeditorlightningtime = time + 0.5;
1531         FOREACH_CLIENT(IS_PLAYER(it) && !it.isbot,
1532         {
1533                 int display_type = 0;
1534                 if (wasfreed(it.wp_aimed))
1535                         it.wp_aimed = NULL;
1536                 if (wasfreed(it.wp_locked))
1537                         it.wp_locked = NULL;
1538                 if (PHYS_INPUT_BUTTON_USE(it))
1539                         it.wp_locked = it.wp_aimed;
1540                 entity head = it.wp_locked;
1541                 if (!head)
1542                         head = navigation_findnearestwaypoint(it, false);
1543                 it.nearestwaypoint = head; // mainly useful for debug
1544                 it.nearestwaypointtimeout = time + 2; // while I'm at it...
1545                 if (IS_ONGROUND(it) || it.waterlevel > WATERLEVEL_NONE || it.wp_locked)
1546                         display_type = 1; // default
1547                 else if(head && (head.wphardwired))
1548                         display_type = 2; // only hardwired
1549
1550                 if (display_type)
1551                 {
1552                         //navigation_testtracewalk = true;
1553                         //print("currently selected WP is ", etos(head), "\n");
1554                         //navigation_testtracewalk = false;
1555                         if (head)
1556                         {
1557                                 te_lightning2(NULL, head.origin, it.origin);
1558                                 if(PHYS_INPUT_BUTTON_CROUCH(it))
1559                                         waypoint_showlinks_to(head, display_type);
1560                                 else
1561                                         waypoint_showlinks_from(head, display_type);
1562                         }
1563                 }
1564                 string str;
1565                 entity wp = NULL;
1566                 if (vdist(vec2(it.velocity), <, autocvar_sv_maxspeed * 1.1))
1567                 {
1568                         crosshair_trace_waypoints(it);
1569                         if (trace_ent)
1570                         {
1571                                 wp = trace_ent;
1572                                 if (wp != it.wp_aimed)
1573                                 {
1574                                         str = sprintf("\necho ^2WP info^7: entity: %d, flags: %d, origin: '%s'\n", etof(wp), wp.wpflags, vtos(wp.origin));
1575                                         if (wp.wpisbox)
1576                                                 str = strcat(str, sprintf("echo \" absmin: '%s', absmax: '%s'\"\n", vtos(wp.absmin), vtos(wp.absmax)));
1577                                         stuffcmd(it, str);
1578                                         str = sprintf("entity: %d\nflags: %d\norigin: \'%s\'", etof(wp), wp.wpflags, vtos(wp.origin));
1579                                         if (wp.wpisbox)
1580                                                 str = strcat(str, sprintf(" \nabsmin: '%s'\nabsmax: '%s'", vtos(wp.absmin), vtos(wp.absmax)));
1581                                         debug_text_3d(wp.origin, str, 0, 7, '0 0 0');
1582                                 }
1583                         }
1584                 }
1585                 if (it.wp_aimed != wp)
1586                         it.wp_aimed = wp;
1587         });
1588 }
1589
1590 float botframe_autowaypoints_fixdown(vector v)
1591 {
1592         tracebox(v, PL_MIN_CONST, PL_MAX_CONST, v + '0 0 -64', MOVE_NOMONSTERS, NULL);
1593         if(trace_fraction >= 1)
1594                 return 0;
1595         return 1;
1596 }
1597
1598 float botframe_autowaypoints_createwp(vector v, entity p, .entity fld, float f)
1599 {
1600         IL_EACH(g_waypoints, boxesoverlap(v - '32 32 32', v + '32 32 32', it.absmin, it.absmax),
1601         {
1602                 // if a matching spawnfunc_waypoint already exists, don't add a duplicate
1603                 return 0;
1604         });
1605
1606         waypoint_schedulerelink(p.(fld) = waypoint_spawn(v, v, f));
1607         return 1;
1608 }
1609
1610 // return value:
1611 //    1 = WP created
1612 //    0 = no action needed
1613 //   -1 = temp fail, try from world too
1614 //   -2 = permanent fail, do not retry
1615 float botframe_autowaypoints_fix_from(entity p, float walkfromwp, entity wp, .entity fld)
1616 {
1617         // make it possible to go from p to wp, if we can
1618         // if wp is NULL, nearest is chosen
1619
1620         entity w;
1621         vector porg;
1622         float t, tmin, tmax;
1623         vector o;
1624         vector save;
1625
1626         if(!botframe_autowaypoints_fixdown(p.origin))
1627                 return -2;
1628         porg = trace_endpos;
1629
1630         if(wp)
1631         {
1632                 // if any WP w fulfills wp -> w -> porg and w is closer than wp, then switch from wp to w
1633
1634                 // if wp -> porg, then OK
1635                 float maxdist;
1636                 if(navigation_waypoint_will_link(wp.origin, porg, p, porg, 0, wp.origin, 0, walkfromwp, 1050))
1637                 {
1638                         // we may find a better one
1639                         maxdist = vlen(wp.origin - porg);
1640                 }
1641                 else
1642                 {
1643                         // accept any "good"
1644                         maxdist = 2100;
1645                 }
1646
1647                 float bestdist = maxdist;
1648                 IL_EACH(g_waypoints, it != wp && !(it.wpflags & WAYPOINTFLAG_NORELINK),
1649                 {
1650                         float d = vlen(wp.origin - it.origin) + vlen(it.origin - porg);
1651                         if(d < bestdist)
1652                         if(navigation_waypoint_will_link(wp.origin, it.origin, p, it.origin, 0, wp.origin, 0, walkfromwp, 1050))
1653                         if(navigation_waypoint_will_link(it.origin, porg, p, porg, 0, it.origin, 0, walkfromwp, 1050))
1654                         {
1655                                 bestdist = d;
1656                                 p.(fld) = it;
1657                         }
1658                 });
1659                 if(bestdist < maxdist)
1660                 {
1661                         LOG_INFO("update chain to new nearest WP ", etos(p.(fld)));
1662                         return 0;
1663                 }
1664
1665                 if(bestdist < 2100)
1666                 {
1667                         // we know maxdist < 2100
1668                         // so wp -> porg is still valid
1669                         // all is good
1670                         p.(fld) = wp;
1671                         return 0;
1672                 }
1673
1674                 // otherwise, no existing WP can fix our issues
1675         }
1676         else
1677         {
1678                 save = p.origin;
1679                 setorigin(p, porg);
1680                 w = navigation_findnearestwaypoint(p, walkfromwp);
1681                 setorigin(p, save);
1682                 if(w)
1683                 {
1684                         p.(fld) = w;
1685                         return 0;
1686                 }
1687         }
1688
1689         tmin = 0;
1690         tmax = 1;
1691         for (;;)
1692         {
1693                 if(tmax - tmin < 0.001)
1694                 {
1695                         // did not get a good candidate
1696                         return -1;
1697                 }
1698
1699                 t = (tmin + tmax) * 0.5;
1700                 o = antilag_takebackorigin(p, CS(p), time - t);
1701                 if(!botframe_autowaypoints_fixdown(o))
1702                         return -2;
1703                 o = trace_endpos;
1704
1705                 if(wp)
1706                 {
1707                         if(!navigation_waypoint_will_link(wp.origin, o, p, o, 0, wp.origin, 0, walkfromwp, 1050))
1708                         {
1709                                 // we cannot walk from wp.origin to o
1710                                 // get closer to tmax
1711                                 tmin = t;
1712                                 continue;
1713                         }
1714                 }
1715                 else
1716                 {
1717                         save = p.origin;
1718                         setorigin(p, o);
1719                         w = navigation_findnearestwaypoint(p, walkfromwp);
1720                         setorigin(p, save);
1721                         if(!w)
1722                         {
1723                                 // we cannot walk from any WP to o
1724                                 // get closer to tmax
1725                                 tmin = t;
1726                                 continue;
1727                         }
1728                 }
1729
1730                 // if we get here, o is valid regarding waypoints
1731                 // check if o is connected right to the player
1732                 // we break if it succeeds, as that means o is a good waypoint location
1733                 if(navigation_waypoint_will_link(o, porg, p, porg, 0, o, 0, walkfromwp, 1050))
1734                         break;
1735
1736                 // o is no good, we need to get closer to the player
1737                 tmax = t;
1738         }
1739
1740         LOG_INFO("spawning a waypoint for connecting to ", etos(wp));
1741         botframe_autowaypoints_createwp(o, p, fld, 0);
1742         return 1;
1743 }
1744
1745 // automatically create missing waypoints
1746 .entity botframe_autowaypoints_lastwp0, botframe_autowaypoints_lastwp1;
1747 void botframe_autowaypoints_fix(entity p, float walkfromwp, .entity fld)
1748 {
1749         float r = botframe_autowaypoints_fix_from(p, walkfromwp, p.(fld), fld);
1750         if(r != -1)
1751                 return;
1752         r = botframe_autowaypoints_fix_from(p, walkfromwp, NULL, fld);
1753         if(r != -1)
1754                 return;
1755
1756         LOG_INFO("emergency: got no good nearby WP to build a link from, starting a new chain");
1757         if(!botframe_autowaypoints_fixdown(p.origin))
1758                 return; // shouldn't happen, caught above
1759         botframe_autowaypoints_createwp(trace_endpos, p, fld, WAYPOINTFLAG_PROTECTED);
1760 }
1761
1762 void botframe_deleteuselesswaypoints()
1763 {
1764         IL_EACH(g_items, it.bot_pickup,
1765         {
1766                 // NOTE: this protects waypoints if they're the ONLY nearest
1767                 // waypoint. That's the intention.
1768                 navigation_findnearestwaypoint(it, false);  // Walk TO item.
1769                 navigation_findnearestwaypoint(it, true);  // Walk FROM item.
1770         });
1771         IL_EACH(g_waypoints, true,
1772         {
1773                 it.wpflags |= WAYPOINTFLAG_DEAD_END;
1774                 it.wpflags &= ~WAYPOINTFLAG_USEFUL;
1775                 // WP is useful if:
1776                 if (it.wpflags & WAYPOINTFLAG_ITEM)
1777                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1778                 if (it.wpflags & WAYPOINTFLAG_TELEPORT)
1779                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1780                 if (it.wpflags & WAYPOINTFLAG_LADDER)
1781                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1782                 if (it.wpflags & WAYPOINTFLAG_PROTECTED)
1783                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1784                 // b) WP is closest WP for an item/spawnpoint/other entity
1785                 //    This has been done above by protecting these WPs.
1786         });
1787         // c) There are w1, w, w2 so that w1 -> w, w -> w2 and not w1 -> w2.
1788         IL_EACH(g_waypoints, !(it.wpflags & WAYPOINTFLAG_PERSONAL),
1789         {
1790                 for (int m = 0; m < 32; ++m)
1791                 {
1792                         entity w = waypoint_get_link(it, m);
1793                         if (!w)
1794                                 break;
1795                         if (w.wpflags & WAYPOINTFLAG_PERSONAL)
1796                                 continue;
1797                         if (w.wpflags & WAYPOINTFLAG_USEFUL)
1798                                 continue;
1799                         for (int j = 0; j < 32; ++j)
1800                         {
1801                                 entity w2 = waypoint_get_link(w, j);
1802                                 if (!w2)
1803                                         break;
1804                                 if (it == w2)
1805                                         continue;
1806                                 if (w2.wpflags & WAYPOINTFLAG_PERSONAL)
1807                                         continue;
1808                                 // If we got here, it != w2 exist with it -> w
1809                                 // and w -> w2. That means the waypoint is not
1810                                 // a dead end.
1811                                 w.wpflags &= ~WAYPOINTFLAG_DEAD_END;
1812                                 for (int k = 0; k < 32; ++k)
1813                                 {
1814                                         if (waypoint_get_link(it, k) == w2)
1815                                                 continue;
1816                                         // IF WE GET HERE, w is proven useful
1817                                         // to get from it to w2!
1818                                         w.wpflags |= WAYPOINTFLAG_USEFUL;
1819                                         goto next;
1820                                 }
1821                         }
1822 LABEL(next)
1823                 }
1824         });
1825         // d) The waypoint is a dead end. Dead end waypoints must be kept as
1826         //     they are needed to complete routes while autowaypointing.
1827
1828         IL_EACH(g_waypoints, !(it.wpflags & (WAYPOINTFLAG_USEFUL | WAYPOINTFLAG_DEAD_END)),
1829         {
1830                 LOG_INFOF("Removed a waypoint at %v. Try again for more!", it.origin);
1831                 te_explosion(it.origin);
1832                 waypoint_remove(it);
1833                 break;
1834         });
1835
1836         IL_EACH(g_waypoints, true,
1837         {
1838                 it.wpflags &= ~(WAYPOINTFLAG_USEFUL | WAYPOINTFLAG_DEAD_END); // temp flag
1839         });
1840 }
1841
1842 void botframe_autowaypoints()
1843 {
1844         FOREACH_CLIENT(IS_PLAYER(it) && IS_REAL_CLIENT(it) && !IS_DEAD(it), {
1845                 // going back is broken, so only fix waypoints to walk TO the player
1846                 //botframe_autowaypoints_fix(p, false, botframe_autowaypoints_lastwp0);
1847                 botframe_autowaypoints_fix(it, true, botframe_autowaypoints_lastwp1);
1848                 //te_explosion(p.botframe_autowaypoints_lastwp0.origin);
1849         });
1850
1851         if (autocvar_g_waypointeditor_auto >= 2) {
1852                 botframe_deleteuselesswaypoints();
1853         }
1854 }
1855