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1 // create a new spawnfunc_waypoint and automatically link it to other waypoints, and link
2 // them back to it as well
3 // (suitable for spawnfunc_waypoint editor)
4 entity waypoint_spawn(vector m1, vector m2, float f)
5 {
6         entity w;
7         w = find(world, classname, "waypoint");
8
9         if (!(f & WAYPOINTFLAG_PERSONAL))
10         while (w)
11         {
12                 // if a matching spawnfunc_waypoint already exists, don't add a duplicate
13                 if (boxesoverlap(m1, m2, w.absmin, w.absmax))
14                         return w;
15                 w = find(w, classname, "waypoint");
16         }
17
18         w = spawn();
19         w.dphitcontentsmask = DPCONTENTS_SOLID | DPCONTENTS_BODY | DPCONTENTS_PLAYERCLIP | DPCONTENTS_BOTCLIP;
20         w.classname = "waypoint";
21         w.wpflags = f;
22         setorigin(w, (m1 + m2) * 0.5);
23         setsize(w, m1 - w.origin, m2 - w.origin);
24         if (vlen(w.size) > 0)
25                 w.wpisbox = TRUE;
26
27         if(!w.wpisbox)
28         {
29                 setsize(w, PL_MIN - '1 1 0', PL_MAX + '1 1 0');
30                 if(!move_out_of_solid(w))
31                 {
32                         if(!(f & WAYPOINTFLAG_GENERATED))
33                         {
34                                 dprint("Killed a waypoint that was stuck in solid at ", vtos(w.origin), "\n");
35                                 remove(w);
36                                 return world;
37                         }
38                         else
39                         {
40                                 if(autocvar_developer)
41                                 {
42                                         print("A generated waypoint is stuck in solid at ", vtos(w.origin), "\n");
43                                         backtrace("Waypoint stuck");
44                                 }
45                         }
46                 }
47                 setsize(w, '0 0 0', '0 0 0');
48         }
49
50         waypoint_clearlinks(w);
51         //waypoint_schedulerelink(w);
52
53         if (autocvar_g_waypointeditor)
54         {
55                 m1 = w.mins;
56                 m2 = w.maxs;
57                 setmodel(w, "models/runematch/rune.mdl"); w.effects = EF_LOWPRECISION;
58                 setsize(w, m1, m2);
59                 if (w.wpflags & WAYPOINTFLAG_ITEM)
60                         w.colormod = '1 0 0';
61                 else if (w.wpflags & WAYPOINTFLAG_GENERATED)
62                         w.colormod = '1 1 0';
63                 else
64                         w.colormod = '1 1 1';
65         }
66         else
67                 w.model = "";
68
69         return w;
70 }
71
72 // add a new link to the spawnfunc_waypoint, replacing the furthest link it already has
73 void waypoint_addlink(entity from, entity to)
74 {
75         float c;
76
77         if (from == to)
78                 return;
79         if (from.wpflags & WAYPOINTFLAG_NORELINK)
80                 return;
81
82         if (from.wp00 == to) return;if (from.wp01 == to) return;if (from.wp02 == to) return;if (from.wp03 == to) return;
83         if (from.wp04 == to) return;if (from.wp05 == to) return;if (from.wp06 == to) return;if (from.wp07 == to) return;
84         if (from.wp08 == to) return;if (from.wp09 == to) return;if (from.wp10 == to) return;if (from.wp11 == to) return;
85         if (from.wp12 == to) return;if (from.wp13 == to) return;if (from.wp14 == to) return;if (from.wp15 == to) return;
86         if (from.wp16 == to) return;if (from.wp17 == to) return;if (from.wp18 == to) return;if (from.wp19 == to) return;
87         if (from.wp20 == to) return;if (from.wp21 == to) return;if (from.wp22 == to) return;if (from.wp23 == to) return;
88         if (from.wp24 == to) return;if (from.wp25 == to) return;if (from.wp26 == to) return;if (from.wp27 == to) return;
89         if (from.wp28 == to) return;if (from.wp29 == to) return;if (from.wp30 == to) return;if (from.wp31 == to) return;
90
91         if (to.wpisbox || from.wpisbox)
92         {
93                 // if either is a box we have to find the nearest points on them to
94                 // calculate the distance properly
95                 vector v1, v2, m1, m2;
96                 v1 = from.origin;
97                 m1 = to.absmin;
98                 m2 = to.absmax;
99                 v1_x = bound(m1_x, v1_x, m2_x);
100                 v1_y = bound(m1_y, v1_y, m2_y);
101                 v1_z = bound(m1_z, v1_z, m2_z);
102                 v2 = to.origin;
103                 m1 = from.absmin;
104                 m2 = from.absmax;
105                 v2_x = bound(m1_x, v2_x, m2_x);
106                 v2_y = bound(m1_y, v2_y, m2_y);
107                 v2_z = bound(m1_z, v2_z, m2_z);
108                 v2 = to.origin;
109                 c = vlen(v2 - v1);
110         }
111         else
112                 c = vlen(to.origin - from.origin);
113
114         if (from.wp31mincost < c) return;
115         if (from.wp30mincost < c) {from.wp31 = to;from.wp31mincost = c;return;} from.wp31 = from.wp30;from.wp31mincost = from.wp30mincost;
116         if (from.wp29mincost < c) {from.wp30 = to;from.wp30mincost = c;return;} from.wp30 = from.wp29;from.wp30mincost = from.wp29mincost;
117         if (from.wp28mincost < c) {from.wp29 = to;from.wp29mincost = c;return;} from.wp29 = from.wp28;from.wp29mincost = from.wp28mincost;
118         if (from.wp27mincost < c) {from.wp28 = to;from.wp28mincost = c;return;} from.wp28 = from.wp27;from.wp28mincost = from.wp27mincost;
119         if (from.wp26mincost < c) {from.wp27 = to;from.wp27mincost = c;return;} from.wp27 = from.wp26;from.wp27mincost = from.wp26mincost;
120         if (from.wp25mincost < c) {from.wp26 = to;from.wp26mincost = c;return;} from.wp26 = from.wp25;from.wp26mincost = from.wp25mincost;
121         if (from.wp24mincost < c) {from.wp25 = to;from.wp25mincost = c;return;} from.wp25 = from.wp24;from.wp25mincost = from.wp24mincost;
122         if (from.wp23mincost < c) {from.wp24 = to;from.wp24mincost = c;return;} from.wp24 = from.wp23;from.wp24mincost = from.wp23mincost;
123         if (from.wp22mincost < c) {from.wp23 = to;from.wp23mincost = c;return;} from.wp23 = from.wp22;from.wp23mincost = from.wp22mincost;
124         if (from.wp21mincost < c) {from.wp22 = to;from.wp22mincost = c;return;} from.wp22 = from.wp21;from.wp22mincost = from.wp21mincost;
125         if (from.wp20mincost < c) {from.wp21 = to;from.wp21mincost = c;return;} from.wp21 = from.wp20;from.wp21mincost = from.wp20mincost;
126         if (from.wp19mincost < c) {from.wp20 = to;from.wp20mincost = c;return;} from.wp20 = from.wp19;from.wp20mincost = from.wp19mincost;
127         if (from.wp18mincost < c) {from.wp19 = to;from.wp19mincost = c;return;} from.wp19 = from.wp18;from.wp19mincost = from.wp18mincost;
128         if (from.wp17mincost < c) {from.wp18 = to;from.wp18mincost = c;return;} from.wp18 = from.wp17;from.wp18mincost = from.wp17mincost;
129         if (from.wp16mincost < c) {from.wp17 = to;from.wp17mincost = c;return;} from.wp17 = from.wp16;from.wp17mincost = from.wp16mincost;
130         if (from.wp15mincost < c) {from.wp16 = to;from.wp16mincost = c;return;} from.wp16 = from.wp15;from.wp16mincost = from.wp15mincost;
131         if (from.wp14mincost < c) {from.wp15 = to;from.wp15mincost = c;return;} from.wp15 = from.wp14;from.wp15mincost = from.wp14mincost;
132         if (from.wp13mincost < c) {from.wp14 = to;from.wp14mincost = c;return;} from.wp14 = from.wp13;from.wp14mincost = from.wp13mincost;
133         if (from.wp12mincost < c) {from.wp13 = to;from.wp13mincost = c;return;} from.wp13 = from.wp12;from.wp13mincost = from.wp12mincost;
134         if (from.wp11mincost < c) {from.wp12 = to;from.wp12mincost = c;return;} from.wp12 = from.wp11;from.wp12mincost = from.wp11mincost;
135         if (from.wp10mincost < c) {from.wp11 = to;from.wp11mincost = c;return;} from.wp11 = from.wp10;from.wp11mincost = from.wp10mincost;
136         if (from.wp09mincost < c) {from.wp10 = to;from.wp10mincost = c;return;} from.wp10 = from.wp09;from.wp10mincost = from.wp09mincost;
137         if (from.wp08mincost < c) {from.wp09 = to;from.wp09mincost = c;return;} from.wp09 = from.wp08;from.wp09mincost = from.wp08mincost;
138         if (from.wp07mincost < c) {from.wp08 = to;from.wp08mincost = c;return;} from.wp08 = from.wp07;from.wp08mincost = from.wp07mincost;
139         if (from.wp06mincost < c) {from.wp07 = to;from.wp07mincost = c;return;} from.wp07 = from.wp06;from.wp07mincost = from.wp06mincost;
140         if (from.wp05mincost < c) {from.wp06 = to;from.wp06mincost = c;return;} from.wp06 = from.wp05;from.wp06mincost = from.wp05mincost;
141         if (from.wp04mincost < c) {from.wp05 = to;from.wp05mincost = c;return;} from.wp05 = from.wp04;from.wp05mincost = from.wp04mincost;
142         if (from.wp03mincost < c) {from.wp04 = to;from.wp04mincost = c;return;} from.wp04 = from.wp03;from.wp04mincost = from.wp03mincost;
143         if (from.wp02mincost < c) {from.wp03 = to;from.wp03mincost = c;return;} from.wp03 = from.wp02;from.wp03mincost = from.wp02mincost;
144         if (from.wp01mincost < c) {from.wp02 = to;from.wp02mincost = c;return;} from.wp02 = from.wp01;from.wp02mincost = from.wp01mincost;
145         if (from.wp00mincost < c) {from.wp01 = to;from.wp01mincost = c;return;} from.wp01 = from.wp00;from.wp01mincost = from.wp00mincost;
146         from.wp00 = to;from.wp00mincost = c;return;
147 }
148
149 // relink this spawnfunc_waypoint
150 // (precompile a list of all reachable waypoints from this spawnfunc_waypoint)
151 // (SLOW!)
152 void waypoint_think()
153 {
154         entity e;
155         vector sv, sm1, sm2, ev, em1, em2, dv;
156
157         bot_calculate_stepheightvec();
158
159         bot_navigation_movemode = ((autocvar_bot_navigation_ignoreplayers) ? MOVE_NOMONSTERS : MOVE_NORMAL);
160
161         //dprint("waypoint_think wpisbox = ", ftos(self.wpisbox), "\n");
162         sm1 = self.origin + self.mins;
163         sm2 = self.origin + self.maxs;
164         for(e = world; (e = find(e, classname, "waypoint")); )
165         {
166                 if (boxesoverlap(self.absmin, self.absmax, e.absmin, e.absmax))
167                 {
168                         waypoint_addlink(self, e);
169                         waypoint_addlink(e, self);
170                 }
171                 else
172                 {
173                         ++relink_total;
174                         if(!checkpvs(self.origin, e))
175                         {
176                                 ++relink_pvsculled;
177                                 continue;
178                         }
179                         sv = e.origin;
180                         sv_x = bound(sm1_x, sv_x, sm2_x);
181                         sv_y = bound(sm1_y, sv_y, sm2_y);
182                         sv_z = bound(sm1_z, sv_z, sm2_z);
183                         ev = self.origin;
184                         em1 = e.origin + e.mins;
185                         em2 = e.origin + e.maxs;
186                         ev_x = bound(em1_x, ev_x, em2_x);
187                         ev_y = bound(em1_y, ev_y, em2_y);
188                         ev_z = bound(em1_z, ev_z, em2_z);
189                         dv = ev - sv;
190                         dv_z = 0;
191                         if (vlen(dv) >= 1050) // max search distance in XY
192                         {
193                                 ++relink_lengthculled;
194                                 continue;
195                         }
196                         navigation_testtracewalk = 0;
197                         if (!self.wpisbox)
198                         {
199                                 tracebox(sv - PL_MIN_z * '0 0 1', PL_MIN, PL_MAX, sv, FALSE, self);
200                                 if (!trace_startsolid)
201                                 {
202                                         //dprint("sv deviation", vtos(trace_endpos - sv), "\n");
203                                         sv = trace_endpos + '0 0 1';
204                                 }
205                         }
206                         if (!e.wpisbox)
207                         {
208                                 tracebox(ev - PL_MIN_z * '0 0 1', PL_MIN, PL_MAX, ev, FALSE, e);
209                                 if (!trace_startsolid)
210                                 {
211                                         //dprint("ev deviation", vtos(trace_endpos - ev), "\n");
212                                         ev = trace_endpos + '0 0 1';
213                                 }
214                         }
215                         //traceline(self.origin, e.origin, FALSE, world);
216                         //if (trace_fraction == 1)
217                         if (!self.wpisbox && tracewalk(self, sv, PL_MIN, PL_MAX, ev, MOVE_NOMONSTERS))
218                                 waypoint_addlink(self, e);
219                         else
220                                 relink_walkculled += 0.5;
221                         if (!e.wpisbox && tracewalk(e, ev, PL_MIN, PL_MAX, sv, MOVE_NOMONSTERS))
222                                 waypoint_addlink(e, self);
223                         else
224                                 relink_walkculled += 0.5;
225                 }
226         }
227         navigation_testtracewalk = 0;
228         self.wplinked = TRUE;
229 }
230
231 void waypoint_clearlinks(entity wp)
232 {
233         // clear links to other waypoints
234         float f;
235         f = 10000000;
236         wp.wp00 = wp.wp01 = wp.wp02 = wp.wp03 = wp.wp04 = wp.wp05 = wp.wp06 = wp.wp07 = world;
237         wp.wp08 = wp.wp09 = wp.wp10 = wp.wp11 = wp.wp12 = wp.wp13 = wp.wp14 = wp.wp15 = world;
238         wp.wp16 = wp.wp17 = wp.wp18 = wp.wp19 = wp.wp20 = wp.wp21 = wp.wp22 = wp.wp23 = world;
239         wp.wp24 = wp.wp25 = wp.wp26 = wp.wp27 = wp.wp28 = wp.wp29 = wp.wp30 = wp.wp31 = world;
240
241         wp.wp00mincost = wp.wp01mincost = wp.wp02mincost = wp.wp03mincost = wp.wp04mincost = wp.wp05mincost = wp.wp06mincost = wp.wp07mincost = f;
242         wp.wp08mincost = wp.wp09mincost = wp.wp10mincost = wp.wp11mincost = wp.wp12mincost = wp.wp13mincost = wp.wp14mincost = wp.wp15mincost = f;
243         wp.wp16mincost = wp.wp17mincost = wp.wp18mincost = wp.wp19mincost = wp.wp20mincost = wp.wp21mincost = wp.wp22mincost = wp.wp23mincost = f;
244         wp.wp24mincost = wp.wp25mincost = wp.wp26mincost = wp.wp27mincost = wp.wp28mincost = wp.wp29mincost = wp.wp30mincost = wp.wp31mincost = f;
245
246         wp.wplinked = FALSE;
247 }
248
249 // tell a spawnfunc_waypoint to relink
250 void waypoint_schedulerelink(entity wp)
251 {
252         if (wp == world)
253                 return;
254         // TODO: add some sort of visible box in edit mode for box waypoints
255         if (autocvar_g_waypointeditor)
256         {
257                 vector m1, m2;
258                 m1 = wp.mins;
259                 m2 = wp.maxs;
260                 setmodel(wp, "models/runematch/rune.mdl"); wp.effects = EF_LOWPRECISION;
261                 setsize(wp, m1, m2);
262                 if (wp.wpflags & WAYPOINTFLAG_ITEM)
263                         wp.colormod = '1 0 0';
264                 else if (wp.wpflags & WAYPOINTFLAG_GENERATED)
265                         wp.colormod = '1 1 0';
266                 else
267                         wp.colormod = '1 1 1';
268         }
269         else
270                 wp.model = "";
271         wp.wpisbox = vlen(wp.size) > 0;
272         wp.enemy = world;
273         if (!(wp.wpflags & WAYPOINTFLAG_PERSONAL))
274                 wp.owner = world;
275         if (!(wp.wpflags & WAYPOINTFLAG_NORELINK))
276                 waypoint_clearlinks(wp);
277         // schedule an actual relink on next frame
278         wp.think = waypoint_think;
279         wp.nextthink = time;
280         wp.effects = EF_LOWPRECISION;
281 }
282
283 // spawnfunc_waypoint map entity
284 void spawnfunc_waypoint()
285 {
286         setorigin(self, self.origin);
287         // schedule a relink after other waypoints have had a chance to spawn
288         waypoint_clearlinks(self);
289         //waypoint_schedulerelink(self);
290 }
291
292 // remove a spawnfunc_waypoint, and schedule all neighbors to relink
293 void waypoint_remove(entity e)
294 {
295         // tell all linked waypoints that they need to relink
296         waypoint_schedulerelink(e.wp00);
297         waypoint_schedulerelink(e.wp01);
298         waypoint_schedulerelink(e.wp02);
299         waypoint_schedulerelink(e.wp03);
300         waypoint_schedulerelink(e.wp04);
301         waypoint_schedulerelink(e.wp05);
302         waypoint_schedulerelink(e.wp06);
303         waypoint_schedulerelink(e.wp07);
304         waypoint_schedulerelink(e.wp08);
305         waypoint_schedulerelink(e.wp09);
306         waypoint_schedulerelink(e.wp10);
307         waypoint_schedulerelink(e.wp11);
308         waypoint_schedulerelink(e.wp12);
309         waypoint_schedulerelink(e.wp13);
310         waypoint_schedulerelink(e.wp14);
311         waypoint_schedulerelink(e.wp15);
312         waypoint_schedulerelink(e.wp16);
313         waypoint_schedulerelink(e.wp17);
314         waypoint_schedulerelink(e.wp18);
315         waypoint_schedulerelink(e.wp19);
316         waypoint_schedulerelink(e.wp20);
317         waypoint_schedulerelink(e.wp21);
318         waypoint_schedulerelink(e.wp22);
319         waypoint_schedulerelink(e.wp23);
320         waypoint_schedulerelink(e.wp24);
321         waypoint_schedulerelink(e.wp25);
322         waypoint_schedulerelink(e.wp26);
323         waypoint_schedulerelink(e.wp27);
324         waypoint_schedulerelink(e.wp28);
325         waypoint_schedulerelink(e.wp29);
326         waypoint_schedulerelink(e.wp30);
327         waypoint_schedulerelink(e.wp31);
328         // and now remove the spawnfunc_waypoint
329         remove(e);
330 }
331
332 // empties the map of waypoints
333 void waypoint_removeall()
334 {
335         entity head, next;
336         head = findchain(classname, "waypoint");
337         while (head)
338         {
339                 next = head.chain;
340                 remove(head);
341                 head = next;
342         }
343 }
344
345 // tell all waypoints to relink
346 // (is this useful at all?)
347 void waypoint_schedulerelinkall()
348 {
349         entity head;
350         relink_total = relink_walkculled = relink_pvsculled = relink_lengthculled = 0;
351         head = findchain(classname, "waypoint");
352         while (head)
353         {
354                 waypoint_schedulerelink(head);
355                 head = head.chain;
356         }
357 }
358
359 // Load waypoint links from file
360 float waypoint_load_links()
361 {
362         string filename, s;
363         float file, tokens, c = 0, found;
364         entity wp_from = world, wp_to;
365         vector wp_to_pos, wp_from_pos;
366         filename = strcat("maps/", mapname);
367         filename = strcat(filename, ".waypoints.cache");
368         file = fopen(filename, FILE_READ);
369
370         if (file < 0)
371         {
372                 dprint("waypoint links load from ");
373                 dprint(filename);
374                 dprint(" failed\n");
375                 return FALSE;
376         }
377
378         while ((s = fgets(file)))
379         {
380                 tokens = tokenizebyseparator(s, "*");
381
382                 if (tokens!=2)
383                 {
384                         // bad file format
385                         fclose(file);
386                         return FALSE;
387                 }
388
389                 wp_from_pos     = stov(argv(0));
390                 wp_to_pos       = stov(argv(1));
391
392                 // Search "from" waypoint
393                 if(!wp_from || wp_from.origin!=wp_from_pos)
394                 {
395                         wp_from = findradius(wp_from_pos, 1);
396                         found = FALSE;
397                         while(wp_from)
398                         {
399                                 if(vlen(wp_from.origin-wp_from_pos)<1)
400                                 if(wp_from.classname == "waypoint")
401                                 {
402                                         found = TRUE;
403                                         break;
404                                 }
405                                 wp_from = wp_from.chain;
406                         }
407
408                         if(!found)
409                         {
410                                 dprint("waypoint_load_links: couldn't find 'from' waypoint at ", vtos(wp_from.origin),"\n");
411                                 continue;
412                         }
413
414                 }
415
416                 // Search "to" waypoint
417                 wp_to = findradius(wp_to_pos, 1);
418                 found = FALSE;
419                 while(wp_to)
420                 {
421                         if(vlen(wp_to.origin-wp_to_pos)<1)
422                         if(wp_to.classname == "waypoint")
423                         {
424                                 found = TRUE;
425                                 break;
426                         }
427                         wp_to = wp_to.chain;
428                 }
429
430                 if(!found)
431                 {
432                         dprint("waypoint_load_links: couldn't find 'to' waypoint at ", vtos(wp_to.origin),"\n");
433                         continue;
434                 }
435
436                 ++c;
437                 waypoint_addlink(wp_from, wp_to);
438         }
439
440         fclose(file);
441
442         dprint("loaded ");
443         dprint(ftos(c));
444         dprint(" waypoint links from maps/");
445         dprint(mapname);
446         dprint(".waypoints.cache\n");
447
448         botframe_cachedwaypointlinks = TRUE;
449         return TRUE;
450 }
451
452 void waypoint_load_links_hardwired()
453 {
454         string filename, s;
455         float file, tokens, c = 0, found;
456         entity wp_from = world, wp_to;
457         vector wp_to_pos, wp_from_pos;
458         filename = strcat("maps/", mapname);
459         filename = strcat(filename, ".waypoints.hardwired");
460         file = fopen(filename, FILE_READ);
461
462         botframe_loadedforcedlinks = TRUE;
463
464         if (file < 0)
465         {
466                 dprint("waypoint links load from ");
467                 dprint(filename);
468                 dprint(" failed\n");
469                 return;
470         }
471
472         while ((s = fgets(file)))
473         {
474                 if(substring(s, 0, 2)=="//")
475                         continue;
476
477                 if(substring(s, 0, 1)=="#")
478                         continue;
479
480                 tokens = tokenizebyseparator(s, "*");
481
482                 if (tokens!=2)
483                         continue;
484
485                 wp_from_pos     = stov(argv(0));
486                 wp_to_pos       = stov(argv(1));
487
488                 // Search "from" waypoint
489                 if(!wp_from || wp_from.origin!=wp_from_pos)
490                 {
491                         wp_from = findradius(wp_from_pos, 5);
492                         found = FALSE;
493                         while(wp_from)
494                         {
495                                 if(vlen(wp_from.origin-wp_from_pos)<5)
496                                 if(wp_from.classname == "waypoint")
497                                 {
498                                         found = TRUE;
499                                         break;
500                                 }
501                                 wp_from = wp_from.chain;
502                         }
503
504                         if(!found)
505                         {
506                                 print(strcat("NOTICE: Can not find waypoint at ", vtos(wp_from_pos), ". Path skipped\n"));
507                                 continue;
508                         }
509                 }
510
511                 // Search "to" waypoint
512                 wp_to = findradius(wp_to_pos, 5);
513                 found = FALSE;
514                 while(wp_to)
515                 {
516                         if(vlen(wp_to.origin-wp_to_pos)<5)
517                         if(wp_to.classname == "waypoint")
518                         {
519                                 found = TRUE;
520                                 break;
521                         }
522                         wp_to = wp_to.chain;
523                 }
524
525                 if(!found)
526                 {
527                         print(strcat("NOTICE: Can not find waypoint at ", vtos(wp_to_pos), ". Path skipped\n"));
528                         continue;
529                 }
530
531                 ++c;
532                 waypoint_addlink(wp_from, wp_to);
533                 wp_from.wphardwired = TRUE;
534                 wp_to.wphardwired = TRUE;
535         }
536
537         fclose(file);
538
539         dprint("loaded ");
540         dprint(ftos(c));
541         dprint(" waypoint links from maps/");
542         dprint(mapname);
543         dprint(".waypoints.hardwired\n");
544 }
545
546 entity waypoint_get_link(entity w, float i)
547 {
548         switch(i)
549         {
550                 case  0:return w.wp00;
551                 case  1:return w.wp01;
552                 case  2:return w.wp02;
553                 case  3:return w.wp03;
554                 case  4:return w.wp04;
555                 case  5:return w.wp05;
556                 case  6:return w.wp06;
557                 case  7:return w.wp07;
558                 case  8:return w.wp08;
559                 case  9:return w.wp09;
560                 case 10:return w.wp10;
561                 case 11:return w.wp11;
562                 case 12:return w.wp12;
563                 case 13:return w.wp13;
564                 case 14:return w.wp14;
565                 case 15:return w.wp15;
566                 case 16:return w.wp16;
567                 case 17:return w.wp17;
568                 case 18:return w.wp18;
569                 case 19:return w.wp19;
570                 case 20:return w.wp20;
571                 case 21:return w.wp21;
572                 case 22:return w.wp22;
573                 case 23:return w.wp23;
574                 case 24:return w.wp24;
575                 case 25:return w.wp25;
576                 case 26:return w.wp26;
577                 case 27:return w.wp27;
578                 case 28:return w.wp28;
579                 case 29:return w.wp29;
580                 case 30:return w.wp30;
581                 case 31:return w.wp31;
582                 default:return world;
583         }
584 }
585
586 // Save all waypoint links to a file
587 void waypoint_save_links()
588 {
589         string filename, s;
590         float file, c, i;
591         entity w, link;
592         filename = strcat("maps/", mapname);
593         filename = strcat(filename, ".waypoints.cache");
594         file = fopen(filename, FILE_WRITE);
595         if (file < 0)
596         {
597                 print("waypoint links save to ");
598                 print(filename);
599                 print(" failed\n");
600         }
601         c = 0;
602         w = findchain(classname, "waypoint");
603         while (w)
604         {
605                 for(i=0;i<32;++i)
606                 {
607                         // :S
608                         link = waypoint_get_link(w, i);
609                         if(link==world)
610                                 continue;
611
612                         s = strcat(vtos(w.origin), "*", vtos(link.origin), "\n");
613                         fputs(file, s);
614                         ++c;
615                 }
616                 w = w.chain;
617         }
618         fclose(file);
619         botframe_cachedwaypointlinks = TRUE;
620
621         print("saved ");
622         print(ftos(c));
623         print(" waypoints links to maps/");
624         print(mapname);
625         print(".waypoints.cache\n");
626 }
627
628 // save waypoints to gamedir/data/maps/mapname.waypoints
629 void waypoint_saveall()
630 {
631         string filename, s;
632         float file, c;
633         entity w;
634         filename = strcat("maps/", mapname);
635         filename = strcat(filename, ".waypoints");
636         file = fopen(filename, FILE_WRITE);
637         if (file >= 0)
638         {
639                 c = 0;
640                 w = findchain(classname, "waypoint");
641                 while (w)
642                 {
643                         if (!(w.wpflags & WAYPOINTFLAG_GENERATED))
644                         {
645                                 s = strcat(vtos(w.origin + w.mins), "\n");
646                                 s = strcat(s, vtos(w.origin + w.maxs));
647                                 s = strcat(s, "\n");
648                                 s = strcat(s, ftos(w.wpflags));
649                                 s = strcat(s, "\n");
650                                 fputs(file, s);
651                                 c = c + 1;
652                         }
653                         w = w.chain;
654                 }
655                 fclose(file);
656                 bprint("saved ");
657                 bprint(ftos(c));
658                 bprint(" waypoints to maps/");
659                 bprint(mapname);
660                 bprint(".waypoints\n");
661         }
662         else
663         {
664                 bprint("waypoint save to ");
665                 bprint(filename);
666                 bprint(" failed\n");
667         }
668         waypoint_save_links();
669         botframe_loadedforcedlinks = FALSE;
670 }
671
672 // load waypoints from file
673 float waypoint_loadall()
674 {
675         string filename, s;
676         float file, cwp, cwb, fl;
677         vector m1, m2;
678         cwp = 0;
679         cwb = 0;
680         filename = strcat("maps/", mapname);
681         filename = strcat(filename, ".waypoints");
682         file = fopen(filename, FILE_READ);
683         if (file >= 0)
684         {
685                 while ((s = fgets(file)))
686                 {
687                         m1 = stov(s);
688                         s = fgets(file);
689                         if (!s)
690                                 break;
691                         m2 = stov(s);
692                         s = fgets(file);
693                         if (!s)
694                                 break;
695                         fl = stof(s);
696                         waypoint_spawn(m1, m2, fl);
697                         if (m1 == m2)
698                                 cwp = cwp + 1;
699                         else
700                                 cwb = cwb + 1;
701                 }
702                 fclose(file);
703                 dprint("loaded ");
704                 dprint(ftos(cwp));
705                 dprint(" waypoints and ");
706                 dprint(ftos(cwb));
707                 dprint(" wayboxes from maps/");
708                 dprint(mapname);
709                 dprint(".waypoints\n");
710         }
711         else
712         {
713                 dprint("waypoint load from ");
714                 dprint(filename);
715                 dprint(" failed\n");
716         }
717         return cwp + cwb;
718 }
719
720 vector waypoint_fixorigin(vector position)
721 {
722         tracebox(position + '0 0 1' * (1 - PL_MIN_z), PL_MIN, PL_MAX, position + '0 0 -512', MOVE_NOMONSTERS, world);
723         if(trace_fraction < 1)
724                 position = trace_endpos;
725         //traceline(position, position + '0 0 -512', MOVE_NOMONSTERS, world);
726         //print("position is ", ftos(trace_endpos_z - position_z), " above solid\n");
727         return position;
728 }
729
730 void waypoint_spawnforitem_force(entity e, vector org)
731 {
732         entity w;
733
734         // Fix the waypoint altitude if necessary
735         org = waypoint_fixorigin(org);
736
737         // don't spawn an item spawnfunc_waypoint if it already exists
738         w = findchain(classname, "waypoint");
739         while (w)
740         {
741                 if (w.wpisbox)
742                 {
743                         if (boxesoverlap(org, org, w.absmin, w.absmax))
744                         {
745                                 e.nearestwaypoint = w;
746                                 return;
747                         }
748                 }
749                 else
750                 {
751                         if (vlen(w.origin - org) < 16)
752                         {
753                                 e.nearestwaypoint = w;
754                                 return;
755                         }
756                 }
757                 w = w.chain;
758         }
759         e.nearestwaypoint = waypoint_spawn(org, org, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_ITEM);
760 }
761
762 void waypoint_spawnforitem(entity e)
763 {
764         if(!bot_waypoints_for_items)
765                 return;
766
767         waypoint_spawnforitem_force(e, e.origin);
768 }
769
770 void waypoint_spawnforteleporter_boxes(entity e, vector org1, vector org2, vector destination1, vector destination2, float timetaken)
771 {
772         entity w;
773         entity dw;
774         w = waypoint_spawn(org1, org2, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_TELEPORT | WAYPOINTFLAG_NORELINK);
775         dw = waypoint_spawn(destination1, destination2, WAYPOINTFLAG_GENERATED);
776         // one way link to the destination
777         w.wp00 = dw;
778         w.wp00mincost = timetaken; // this is just for jump pads
779         // the teleporter's nearest spawnfunc_waypoint is this one
780         // (teleporters are not goals, so this is probably useless)
781         e.nearestwaypoint = w;
782         e.nearestwaypointtimeout = time + 1000000000;
783 }
784
785 void waypoint_spawnforteleporter_v(entity e, vector org, vector destination, float timetaken)
786 {
787         org = waypoint_fixorigin(org);
788         destination = waypoint_fixorigin(destination);
789         waypoint_spawnforteleporter_boxes(e, org, org, destination, destination, timetaken);
790 }
791
792 void waypoint_spawnforteleporter(entity e, vector destination, float timetaken)
793 {
794         destination = waypoint_fixorigin(destination);
795         waypoint_spawnforteleporter_boxes(e, e.absmin, e.absmax, destination, destination, timetaken);
796 }
797
798 entity waypoint_spawnpersonal(vector position)
799 {
800         entity w;
801
802         // drop the waypoint to a proper location:
803         //   first move it up by a player height
804         //   then move it down to hit the floor with player bbox size
805         position = waypoint_fixorigin(position);
806
807         w = waypoint_spawn(position, position, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_PERSONAL);
808         w.nearestwaypoint = world;
809         w.nearestwaypointtimeout = 0;
810         w.owner = self;
811
812         waypoint_schedulerelink(w);
813
814         return w;
815 }
816
817 void botframe_showwaypointlinks()
818 {
819         entity player, head, w;
820         if (time < botframe_waypointeditorlightningtime)
821                 return;
822         botframe_waypointeditorlightningtime = time + 0.5;
823         player = find(world, classname, "player");
824         while (player)
825         {
826                 if (!player.isbot)
827                 if (player.flags & FL_ONGROUND || player.waterlevel > WATERLEVEL_NONE)
828                 {
829                         //navigation_testtracewalk = TRUE;
830                         head = navigation_findnearestwaypoint(player, FALSE);
831                 //      print("currently selected WP is ", etos(head), "\n");
832                         //navigation_testtracewalk = FALSE;
833                         if (head)
834                         {
835                                 w = head     ;if (w) te_lightning2(world, w.origin, player.origin);
836                                 w = head.wp00;if (w) te_lightning2(world, w.origin, head.origin);
837                                 w = head.wp01;if (w) te_lightning2(world, w.origin, head.origin);
838                                 w = head.wp02;if (w) te_lightning2(world, w.origin, head.origin);
839                                 w = head.wp03;if (w) te_lightning2(world, w.origin, head.origin);
840                                 w = head.wp04;if (w) te_lightning2(world, w.origin, head.origin);
841                                 w = head.wp05;if (w) te_lightning2(world, w.origin, head.origin);
842                                 w = head.wp06;if (w) te_lightning2(world, w.origin, head.origin);
843                                 w = head.wp07;if (w) te_lightning2(world, w.origin, head.origin);
844                                 w = head.wp08;if (w) te_lightning2(world, w.origin, head.origin);
845                                 w = head.wp09;if (w) te_lightning2(world, w.origin, head.origin);
846                                 w = head.wp10;if (w) te_lightning2(world, w.origin, head.origin);
847                                 w = head.wp11;if (w) te_lightning2(world, w.origin, head.origin);
848                                 w = head.wp12;if (w) te_lightning2(world, w.origin, head.origin);
849                                 w = head.wp13;if (w) te_lightning2(world, w.origin, head.origin);
850                                 w = head.wp14;if (w) te_lightning2(world, w.origin, head.origin);
851                                 w = head.wp15;if (w) te_lightning2(world, w.origin, head.origin);
852                                 w = head.wp16;if (w) te_lightning2(world, w.origin, head.origin);
853                                 w = head.wp17;if (w) te_lightning2(world, w.origin, head.origin);
854                                 w = head.wp18;if (w) te_lightning2(world, w.origin, head.origin);
855                                 w = head.wp19;if (w) te_lightning2(world, w.origin, head.origin);
856                                 w = head.wp20;if (w) te_lightning2(world, w.origin, head.origin);
857                                 w = head.wp21;if (w) te_lightning2(world, w.origin, head.origin);
858                                 w = head.wp22;if (w) te_lightning2(world, w.origin, head.origin);
859                                 w = head.wp23;if (w) te_lightning2(world, w.origin, head.origin);
860                                 w = head.wp24;if (w) te_lightning2(world, w.origin, head.origin);
861                                 w = head.wp25;if (w) te_lightning2(world, w.origin, head.origin);
862                                 w = head.wp26;if (w) te_lightning2(world, w.origin, head.origin);
863                                 w = head.wp27;if (w) te_lightning2(world, w.origin, head.origin);
864                                 w = head.wp28;if (w) te_lightning2(world, w.origin, head.origin);
865                                 w = head.wp29;if (w) te_lightning2(world, w.origin, head.origin);
866                                 w = head.wp30;if (w) te_lightning2(world, w.origin, head.origin);
867                                 w = head.wp31;if (w) te_lightning2(world, w.origin, head.origin);
868                         }
869                 }
870                 player = find(player, classname, "player");
871         }
872 }
873
874 float botframe_autowaypoints_fixdown(vector v)
875 {
876         tracebox(v, PL_MIN, PL_MAX, v + '0 0 -64', MOVE_NOMONSTERS, world);
877         if(trace_fraction >= 1)
878                 return 0;
879         return 1;
880 }
881
882 float botframe_autowaypoints_createwp(vector v, entity p, .entity fld, float f)
883 {
884         entity w;
885
886         w = find(world, classname, "waypoint");
887         while (w)
888         {
889                 // if a matching spawnfunc_waypoint already exists, don't add a duplicate
890                 if (boxesoverlap(v - '32 32 32', v + '32 32 32', w.absmin, w.absmax))
891                 //if (boxesoverlap(v - '4 4 4', v + '4 4 4', w.absmin, w.absmax))
892                         return 0;
893                 w = find(w, classname, "waypoint");
894         }
895
896         waypoint_schedulerelink(p.fld = waypoint_spawn(v, v, f));
897         return 1;
898 }
899
900 // return value:
901 //    1 = WP created
902 //    0 = no action needed
903 //   -1 = temp fail, try from world too
904 //   -2 = permanent fail, do not retry
905 float botframe_autowaypoints_fix_from(entity p, float walkfromwp, entity wp, .entity fld)
906 {
907         // make it possible to go from p to wp, if we can
908         // if wp is world, nearest is chosen
909
910         entity w;
911         vector porg;
912         float t, tmin, tmax;
913         vector o;
914         vector save;
915
916         if(!botframe_autowaypoints_fixdown(p.origin))
917                 return -2;
918         porg = trace_endpos;
919
920         if(wp)
921         {
922                 // if any WP w fulfills wp -> w -> porg and w is closer than wp, then switch from wp to w
923
924                 // if wp -> porg, then OK
925                 float maxdist;
926                 if(navigation_waypoint_will_link(wp.origin, porg, p, walkfromwp, 1050))
927                 {
928                         // we may find a better one
929                         maxdist = vlen(wp.origin - porg);
930                 }
931                 else
932                 {
933                         // accept any "good"
934                         maxdist = 2100;
935                 }
936
937                 float bestdist;
938                 bestdist = maxdist;
939                 w = find(world, classname, "waypoint");
940                 while (w)
941                 {
942                         if(w != wp && !(w.wpflags & WAYPOINTFLAG_NORELINK))
943                         {
944                                 float d;
945                                 d = vlen(wp.origin - w.origin) + vlen(w.origin - porg);
946                                 if(d < bestdist)
947                                         if(navigation_waypoint_will_link(wp.origin, w.origin, p, walkfromwp, 1050))
948                                                 if(navigation_waypoint_will_link(w.origin, porg, p, walkfromwp, 1050))
949                                                 {
950                                                         bestdist = d;
951                                                         p.fld = w;
952                                                 }
953                         }
954                         w = find(w, classname, "waypoint");
955                 }
956                 if(bestdist < maxdist)
957                 {
958                         print("update chain to new nearest WP ", etos(p.fld), "\n");
959                         return 0;
960                 }
961
962                 if(bestdist < 2100)
963                 {
964                         // we know maxdist < 2100
965                         // so wp -> porg is still valid
966                         // all is good
967                         p.fld = wp;
968                         return 0;
969                 }
970
971                 // otherwise, no existing WP can fix our issues
972         }
973         else
974         {
975                 save = p.origin;
976                 setorigin(p, porg);
977                 w = navigation_findnearestwaypoint(p, walkfromwp);
978                 setorigin(p, save);
979                 if(w)
980                 {
981                         p.fld = w;
982                         return 0;
983                 }
984         }
985
986         tmin = 0;
987         tmax = 1;
988         for(;;)
989         {
990                 if(tmax - tmin < 0.001)
991                 {
992                         // did not get a good candidate
993                         return -1;
994                 }
995
996                 t = (tmin + tmax) * 0.5;
997                 o = antilag_takebackorigin(p, time - t);
998                 if(!botframe_autowaypoints_fixdown(o))
999                         return -2;
1000                 o = trace_endpos;
1001
1002                 if(wp)
1003                 {
1004                         if(!navigation_waypoint_will_link(wp.origin, o, p, walkfromwp, 1050))
1005                         {
1006                                 // we cannot walk from wp.origin to o
1007                                 // get closer to tmax
1008                                 tmin = t;
1009                                 continue;
1010                         }
1011                 }
1012                 else
1013                 {
1014                         save = p.origin;
1015                         setorigin(p, o);
1016                         w = navigation_findnearestwaypoint(p, walkfromwp);
1017                         setorigin(p, save);
1018                         if(!w)
1019                         {
1020                                 // we cannot walk from any WP to o
1021                                 // get closer to tmax
1022                                 tmin = t;
1023                                 continue;
1024                         }
1025                 }
1026
1027                 // if we get here, o is valid regarding waypoints
1028                 // check if o is connected right to the player
1029                 // we break if it succeeds, as that means o is a good waypoint location
1030                 if(navigation_waypoint_will_link(o, porg, p, walkfromwp, 1050))
1031                         break;
1032
1033                 // o is no good, we need to get closer to the player
1034                 tmax = t;
1035         }
1036
1037         print("spawning a waypoint for connecting to ", etos(wp), "\n");
1038         botframe_autowaypoints_createwp(o, p, fld, 0);
1039         return 1;
1040 }
1041
1042 // automatically create missing waypoints
1043 .entity botframe_autowaypoints_lastwp0, botframe_autowaypoints_lastwp1;
1044 void botframe_autowaypoints_fix(entity p, float walkfromwp, .entity fld)
1045 {
1046         float r;
1047         r = botframe_autowaypoints_fix_from(p, walkfromwp, p.fld, fld);
1048         if(r != -1)
1049                 return;
1050         r = botframe_autowaypoints_fix_from(p, walkfromwp, world, fld);
1051         if(r != -1)
1052                 return;
1053
1054         print("emergency: got no good nearby WP to build a link from, starting a new chain\n");
1055         if(!botframe_autowaypoints_fixdown(p.origin))
1056                 return; // shouldn't happen, caught above
1057         botframe_autowaypoints_createwp(trace_endpos, p, fld, WAYPOINTFLAG_PROTECTED);
1058 }
1059
1060 void botframe_deleteuselesswaypoints()
1061 {
1062         entity w, w1, w2;
1063         float i, j, k;
1064         for (w = world; (w = findfloat(w, bot_pickup, TRUE)); )
1065         {
1066                 // NOTE: this protects waypoints if they're the ONLY nearest
1067                 // waypoint. That's the intention.
1068                 navigation_findnearestwaypoint(w, FALSE);  // Walk TO item.
1069                 navigation_findnearestwaypoint(w, TRUE);  // Walk FROM item.
1070         }
1071         for (w = world; (w = find(w, classname, "waypoint")); )
1072         {
1073                 w.wpflags |= WAYPOINTFLAG_DEAD_END;
1074                 w.wpflags &= ~WAYPOINTFLAG_USEFUL;
1075                 // WP is useful if:
1076                 if (w.wpflags & WAYPOINTFLAG_ITEM)
1077                         w.wpflags |= WAYPOINTFLAG_USEFUL;
1078                 if (w.wpflags & WAYPOINTFLAG_TELEPORT)
1079                         w.wpflags |= WAYPOINTFLAG_USEFUL;
1080                 if (w.wpflags & WAYPOINTFLAG_PROTECTED)
1081                         w.wpflags |= WAYPOINTFLAG_USEFUL;
1082                 // b) WP is closest WP for an item/spawnpoint/other entity
1083                 //    This has been done above by protecting these WPs.
1084         }
1085         // c) There are w1, w, w2 so that w1 -> w, w -> w2 and not w1 -> w2.
1086         for (w1 = world; (w1 = find(w1, classname, "waypoint")); )
1087         {
1088                 if (w1.wpflags & WAYPOINTFLAG_PERSONAL)
1089                         continue;
1090                 for (i = 0; i < 32; ++i)
1091                 {
1092                         w = waypoint_get_link(w1, i);
1093                         if (!w)
1094                                 break;
1095                         if (w.wpflags & WAYPOINTFLAG_PERSONAL)
1096                                 continue;
1097                         if (w.wpflags & WAYPOINTFLAG_USEFUL)
1098                                 continue;
1099                         for (j = 0; j < 32; ++j)
1100                         {
1101                                 w2 = waypoint_get_link(w, j);
1102                                 if (!w2)
1103                                         break;
1104                                 if (w1 == w2)
1105                                         continue;
1106                                 if (w2.wpflags & WAYPOINTFLAG_PERSONAL)
1107                                         continue;
1108                                 // If we got here, w1 != w2 exist with w1 -> w
1109                                 // and w -> w2. That means the waypoint is not
1110                                 // a dead end.
1111                                 w.wpflags &= ~WAYPOINTFLAG_DEAD_END;
1112                                 for (k = 0; k < 32; ++k)
1113                                 {
1114                                         if (waypoint_get_link(w1, k) == w2)
1115                                                 continue;
1116                                         // IF WE GET HERE, w is proven useful
1117                                         // to get from w1 to w2!
1118                                         w.wpflags |= WAYPOINTFLAG_USEFUL;
1119                                         goto next;
1120                                 }
1121                         }
1122 :next
1123                 }
1124         }
1125         // d) The waypoint is a dead end. Dead end waypoints must be kept as
1126         //     they are needed to complete routes while autowaypointing.
1127
1128         for (w = world; (w = find(w, classname, "waypoint")); )
1129         {
1130                 if (!(w.wpflags & (WAYPOINTFLAG_USEFUL | WAYPOINTFLAG_DEAD_END)))
1131                 {
1132                         printf("Removed a waypoint at %v. Try again for more!\n", w.origin);
1133                         te_explosion(w.origin);
1134                         waypoint_remove(w);
1135                         break;
1136                 }
1137         }
1138         for (w = world; (w = find(w, classname, "waypoint")); )
1139                 w.wpflags &= ~(WAYPOINTFLAG_USEFUL | WAYPOINTFLAG_DEAD_END); // temp flag
1140 }
1141
1142 void botframe_autowaypoints()
1143 {
1144         entity p;
1145         FOR_EACH_REALPLAYER(p)
1146         {
1147                 if(p.deadflag)
1148                         continue;
1149                 // going back is broken, so only fix waypoints to walk TO the player
1150                 //botframe_autowaypoints_fix(p, FALSE, botframe_autowaypoints_lastwp0);
1151                 botframe_autowaypoints_fix(p, TRUE, botframe_autowaypoints_lastwp1);
1152                 //te_explosion(p.botframe_autowaypoints_lastwp0.origin);
1153         }
1154
1155         if (autocvar_g_waypointeditor_auto >= 2) {
1156                 botframe_deleteuselesswaypoints();
1157         }
1158 }
1159