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[xonotic/xonotic-data.pk3dir.git] / qcsrc / server / bot / waypoints.qc
1 #include "waypoints.qh"
2
3 #include "bot.qh"
4 #include "navigation.qh"
5
6 #include <common/state.qh>
7
8 #include "../antilag.qh"
9
10 #include <common/constants.qh>
11
12 #include <lib/warpzone/common.qh>
13 #include <lib/warpzone/util_server.qh>
14
15 // create a new spawnfunc_waypoint and automatically link it to other waypoints, and link
16 // them back to it as well
17 // (suitable for spawnfunc_waypoint editor)
18 entity waypoint_spawn(vector m1, vector m2, float f)
19 {
20         if(!(f & WAYPOINTFLAG_PERSONAL))
21         {
22                 for(entity wp = findchain(classname, "waypoint"); wp; wp = wp.chain)
23                 {
24                         // if a matching spawnfunc_waypoint already exists, don't add a duplicate
25                         if(boxesoverlap(m1, m2, wp.absmin, wp.absmax))
26                                 return wp;
27                 }
28         }
29                 
30
31         entity w = new(waypoint);
32         w.dphitcontentsmask = DPCONTENTS_SOLID | DPCONTENTS_BODY | DPCONTENTS_PLAYERCLIP | DPCONTENTS_BOTCLIP;
33         w.wpflags = f;
34         w.solid = SOLID_TRIGGER;
35         setorigin(w, (m1 + m2) * 0.5);
36         setsize(w, m1 - w.origin, m2 - w.origin);
37         if (vlen(w.size) > 0)
38                 w.wpisbox = true;
39
40         if(!w.wpisbox)
41         {
42                 setsize(w, STAT(PL_MIN, NULL) - '1 1 0', STAT(PL_MAX, NULL) + '1 1 0');
43                 if(!move_out_of_solid(w))
44                 {
45                         if(!(f & WAYPOINTFLAG_GENERATED))
46                         {
47                                 LOG_TRACE("Killed a waypoint that was stuck in solid at ", vtos(w.origin), "\n");
48                                 remove(w);
49                                 return NULL;
50                         }
51                         else
52                         {
53                                 if(autocvar_developer)
54                                 {
55                                         LOG_INFO("A generated waypoint is stuck in solid at ", vtos(w.origin), "\n");
56                                         backtrace("Waypoint stuck");
57                                 }
58                         }
59                 }
60                 setsize(w, '0 0 0', '0 0 0');
61         }
62
63         waypoint_clearlinks(w);
64         //waypoint_schedulerelink(w);
65
66         if (autocvar_g_waypointeditor)
67         {
68                 m1 = w.mins;
69                 m2 = w.maxs;
70                 setmodel(w, MDL_WAYPOINT); w.effects = EF_LOWPRECISION;
71                 setsize(w, m1, m2);
72                 if (w.wpflags & WAYPOINTFLAG_ITEM)
73                         w.colormod = '1 0 0';
74                 else if (w.wpflags & WAYPOINTFLAG_GENERATED)
75                         w.colormod = '1 1 0';
76                 else
77                         w.colormod = '1 1 1';
78         }
79         else
80                 w.model = "";
81
82         return w;
83 }
84
85 // add a new link to the spawnfunc_waypoint, replacing the furthest link it already has
86 void waypoint_addlink(entity from, entity to)
87 {
88         float c;
89
90         if (from == to)
91                 return;
92         if (from.wpflags & WAYPOINTFLAG_NORELINK)
93                 return;
94
95         if (from.wp00 == to) return;if (from.wp01 == to) return;if (from.wp02 == to) return;if (from.wp03 == to) return;
96         if (from.wp04 == to) return;if (from.wp05 == to) return;if (from.wp06 == to) return;if (from.wp07 == to) return;
97         if (from.wp08 == to) return;if (from.wp09 == to) return;if (from.wp10 == to) return;if (from.wp11 == to) return;
98         if (from.wp12 == to) return;if (from.wp13 == to) return;if (from.wp14 == to) return;if (from.wp15 == to) return;
99         if (from.wp16 == to) return;if (from.wp17 == to) return;if (from.wp18 == to) return;if (from.wp19 == to) return;
100         if (from.wp20 == to) return;if (from.wp21 == to) return;if (from.wp22 == to) return;if (from.wp23 == to) return;
101         if (from.wp24 == to) return;if (from.wp25 == to) return;if (from.wp26 == to) return;if (from.wp27 == to) return;
102         if (from.wp28 == to) return;if (from.wp29 == to) return;if (from.wp30 == to) return;if (from.wp31 == to) return;
103
104         if (to.wpisbox || from.wpisbox)
105         {
106                 // if either is a box we have to find the nearest points on them to
107                 // calculate the distance properly
108                 vector v1, v2, m1, m2;
109                 v1 = from.origin;
110                 m1 = to.absmin;
111                 m2 = to.absmax;
112                 v1_x = bound(m1_x, v1_x, m2_x);
113                 v1_y = bound(m1_y, v1_y, m2_y);
114                 v1_z = bound(m1_z, v1_z, m2_z);
115                 v2 = to.origin;
116                 m1 = from.absmin;
117                 m2 = from.absmax;
118                 v2_x = bound(m1_x, v2_x, m2_x);
119                 v2_y = bound(m1_y, v2_y, m2_y);
120                 v2_z = bound(m1_z, v2_z, m2_z);
121                 v2 = to.origin;
122                 c = vlen(v2 - v1);
123         }
124         else
125                 c = vlen(to.origin - from.origin);
126
127         if (from.wp31mincost < c) return;
128         if (from.wp30mincost < c) {from.wp31 = to;from.wp31mincost = c;return;} from.wp31 = from.wp30;from.wp31mincost = from.wp30mincost;
129         if (from.wp29mincost < c) {from.wp30 = to;from.wp30mincost = c;return;} from.wp30 = from.wp29;from.wp30mincost = from.wp29mincost;
130         if (from.wp28mincost < c) {from.wp29 = to;from.wp29mincost = c;return;} from.wp29 = from.wp28;from.wp29mincost = from.wp28mincost;
131         if (from.wp27mincost < c) {from.wp28 = to;from.wp28mincost = c;return;} from.wp28 = from.wp27;from.wp28mincost = from.wp27mincost;
132         if (from.wp26mincost < c) {from.wp27 = to;from.wp27mincost = c;return;} from.wp27 = from.wp26;from.wp27mincost = from.wp26mincost;
133         if (from.wp25mincost < c) {from.wp26 = to;from.wp26mincost = c;return;} from.wp26 = from.wp25;from.wp26mincost = from.wp25mincost;
134         if (from.wp24mincost < c) {from.wp25 = to;from.wp25mincost = c;return;} from.wp25 = from.wp24;from.wp25mincost = from.wp24mincost;
135         if (from.wp23mincost < c) {from.wp24 = to;from.wp24mincost = c;return;} from.wp24 = from.wp23;from.wp24mincost = from.wp23mincost;
136         if (from.wp22mincost < c) {from.wp23 = to;from.wp23mincost = c;return;} from.wp23 = from.wp22;from.wp23mincost = from.wp22mincost;
137         if (from.wp21mincost < c) {from.wp22 = to;from.wp22mincost = c;return;} from.wp22 = from.wp21;from.wp22mincost = from.wp21mincost;
138         if (from.wp20mincost < c) {from.wp21 = to;from.wp21mincost = c;return;} from.wp21 = from.wp20;from.wp21mincost = from.wp20mincost;
139         if (from.wp19mincost < c) {from.wp20 = to;from.wp20mincost = c;return;} from.wp20 = from.wp19;from.wp20mincost = from.wp19mincost;
140         if (from.wp18mincost < c) {from.wp19 = to;from.wp19mincost = c;return;} from.wp19 = from.wp18;from.wp19mincost = from.wp18mincost;
141         if (from.wp17mincost < c) {from.wp18 = to;from.wp18mincost = c;return;} from.wp18 = from.wp17;from.wp18mincost = from.wp17mincost;
142         if (from.wp16mincost < c) {from.wp17 = to;from.wp17mincost = c;return;} from.wp17 = from.wp16;from.wp17mincost = from.wp16mincost;
143         if (from.wp15mincost < c) {from.wp16 = to;from.wp16mincost = c;return;} from.wp16 = from.wp15;from.wp16mincost = from.wp15mincost;
144         if (from.wp14mincost < c) {from.wp15 = to;from.wp15mincost = c;return;} from.wp15 = from.wp14;from.wp15mincost = from.wp14mincost;
145         if (from.wp13mincost < c) {from.wp14 = to;from.wp14mincost = c;return;} from.wp14 = from.wp13;from.wp14mincost = from.wp13mincost;
146         if (from.wp12mincost < c) {from.wp13 = to;from.wp13mincost = c;return;} from.wp13 = from.wp12;from.wp13mincost = from.wp12mincost;
147         if (from.wp11mincost < c) {from.wp12 = to;from.wp12mincost = c;return;} from.wp12 = from.wp11;from.wp12mincost = from.wp11mincost;
148         if (from.wp10mincost < c) {from.wp11 = to;from.wp11mincost = c;return;} from.wp11 = from.wp10;from.wp11mincost = from.wp10mincost;
149         if (from.wp09mincost < c) {from.wp10 = to;from.wp10mincost = c;return;} from.wp10 = from.wp09;from.wp10mincost = from.wp09mincost;
150         if (from.wp08mincost < c) {from.wp09 = to;from.wp09mincost = c;return;} from.wp09 = from.wp08;from.wp09mincost = from.wp08mincost;
151         if (from.wp07mincost < c) {from.wp08 = to;from.wp08mincost = c;return;} from.wp08 = from.wp07;from.wp08mincost = from.wp07mincost;
152         if (from.wp06mincost < c) {from.wp07 = to;from.wp07mincost = c;return;} from.wp07 = from.wp06;from.wp07mincost = from.wp06mincost;
153         if (from.wp05mincost < c) {from.wp06 = to;from.wp06mincost = c;return;} from.wp06 = from.wp05;from.wp06mincost = from.wp05mincost;
154         if (from.wp04mincost < c) {from.wp05 = to;from.wp05mincost = c;return;} from.wp05 = from.wp04;from.wp05mincost = from.wp04mincost;
155         if (from.wp03mincost < c) {from.wp04 = to;from.wp04mincost = c;return;} from.wp04 = from.wp03;from.wp04mincost = from.wp03mincost;
156         if (from.wp02mincost < c) {from.wp03 = to;from.wp03mincost = c;return;} from.wp03 = from.wp02;from.wp03mincost = from.wp02mincost;
157         if (from.wp01mincost < c) {from.wp02 = to;from.wp02mincost = c;return;} from.wp02 = from.wp01;from.wp02mincost = from.wp01mincost;
158         if (from.wp00mincost < c) {from.wp01 = to;from.wp01mincost = c;return;} from.wp01 = from.wp00;from.wp01mincost = from.wp00mincost;
159         from.wp00 = to;from.wp00mincost = c;return;
160 }
161
162 // relink this spawnfunc_waypoint
163 // (precompile a list of all reachable waypoints from this spawnfunc_waypoint)
164 // (SLOW!)
165 void waypoint_think(entity this)
166 {
167         vector sv, sm1, sm2, ev, em1, em2, dv;
168
169         bot_calculate_stepheightvec();
170
171         bot_navigation_movemode = ((autocvar_bot_navigation_ignoreplayers) ? MOVE_NOMONSTERS : MOVE_NORMAL);
172
173         //dprint("waypoint_think wpisbox = ", ftos(this.wpisbox), "\n");
174         sm1 = this.origin + this.mins;
175         sm2 = this.origin + this.maxs;
176         FOREACH_ENTITY_CLASS("waypoint", true,
177         {
178                 if (boxesoverlap(this.absmin, this.absmax, it.absmin, it.absmax))
179                 {
180                         waypoint_addlink(this, it);
181                         waypoint_addlink(it, this);
182                 }
183                 else
184                 {
185                         ++relink_total;
186                         if(!checkpvs(this.origin, it))
187                         {
188                                 ++relink_pvsculled;
189                                 continue;
190                         }
191                         sv = it.origin;
192                         sv.x = bound(sm1_x, sv.x, sm2_x);
193                         sv.y = bound(sm1_y, sv.y, sm2_y);
194                         sv.z = bound(sm1_z, sv.z, sm2_z);
195                         ev = this.origin;
196                         em1 = it.origin + it.mins;
197                         em2 = it.origin + it.maxs;
198                         ev.x = bound(em1_x, ev.x, em2_x);
199                         ev.y = bound(em1_y, ev.y, em2_y);
200                         ev.z = bound(em1_z, ev.z, em2_z);
201                         dv = ev - sv;
202                         dv.z = 0;
203                         if(vdist(dv, >=, 1050)) // max search distance in XY
204                         {
205                                 ++relink_lengthculled;
206                                 continue;
207                         }
208                         navigation_testtracewalk = 0;
209                         if (!this.wpisbox)
210                         {
211                                 tracebox(sv - STAT(PL_MIN, NULL).z * '0 0 1', STAT(PL_MIN, NULL), STAT(PL_MAX, NULL), sv, false, this);
212                                 if (!trace_startsolid)
213                                 {
214                                         //dprint("sv deviation", vtos(trace_endpos - sv), "\n");
215                                         sv = trace_endpos + '0 0 1';
216                                 }
217                         }
218                         if (!it.wpisbox)
219                         {
220                                 tracebox(ev - STAT(PL_MIN, NULL).z * '0 0 1', STAT(PL_MIN, NULL), STAT(PL_MAX, NULL), ev, false, it);
221                                 if (!trace_startsolid)
222                                 {
223                                         //dprint("ev deviation", vtos(trace_endpos - ev), "\n");
224                                         ev = trace_endpos + '0 0 1';
225                                 }
226                         }
227                         //traceline(this.origin, it.origin, false, NULL);
228                         //if (trace_fraction == 1)
229                         if (!this.wpisbox && tracewalk(this, sv, STAT(PL_MIN, NULL), STAT(PL_MAX, NULL), ev, MOVE_NOMONSTERS))
230                                 waypoint_addlink(this, it);
231                         else
232                                 relink_walkculled += 0.5;
233                         if (!it.wpisbox && tracewalk(it, ev, STAT(PL_MIN, NULL), STAT(PL_MAX, NULL), sv, MOVE_NOMONSTERS))
234                                 waypoint_addlink(it, this);
235                         else
236                                 relink_walkculled += 0.5;
237                 }
238         });
239         navigation_testtracewalk = 0;
240         this.wplinked = true;
241 }
242
243 void waypoint_clearlinks(entity wp)
244 {
245         // clear links to other waypoints
246         float f;
247         f = 10000000;
248         wp.wp00 = wp.wp01 = wp.wp02 = wp.wp03 = wp.wp04 = wp.wp05 = wp.wp06 = wp.wp07 = NULL;
249         wp.wp08 = wp.wp09 = wp.wp10 = wp.wp11 = wp.wp12 = wp.wp13 = wp.wp14 = wp.wp15 = NULL;
250         wp.wp16 = wp.wp17 = wp.wp18 = wp.wp19 = wp.wp20 = wp.wp21 = wp.wp22 = wp.wp23 = NULL;
251         wp.wp24 = wp.wp25 = wp.wp26 = wp.wp27 = wp.wp28 = wp.wp29 = wp.wp30 = wp.wp31 = NULL;
252
253         wp.wp00mincost = wp.wp01mincost = wp.wp02mincost = wp.wp03mincost = wp.wp04mincost = wp.wp05mincost = wp.wp06mincost = wp.wp07mincost = f;
254         wp.wp08mincost = wp.wp09mincost = wp.wp10mincost = wp.wp11mincost = wp.wp12mincost = wp.wp13mincost = wp.wp14mincost = wp.wp15mincost = f;
255         wp.wp16mincost = wp.wp17mincost = wp.wp18mincost = wp.wp19mincost = wp.wp20mincost = wp.wp21mincost = wp.wp22mincost = wp.wp23mincost = f;
256         wp.wp24mincost = wp.wp25mincost = wp.wp26mincost = wp.wp27mincost = wp.wp28mincost = wp.wp29mincost = wp.wp30mincost = wp.wp31mincost = f;
257
258         wp.wplinked = false;
259 }
260
261 // tell a spawnfunc_waypoint to relink
262 void waypoint_schedulerelink(entity wp)
263 {
264         if (wp == NULL)
265                 return;
266         // TODO: add some sort of visible box in edit mode for box waypoints
267         if (autocvar_g_waypointeditor)
268         {
269                 vector m1, m2;
270                 m1 = wp.mins;
271                 m2 = wp.maxs;
272                 setmodel(wp, MDL_WAYPOINT); wp.effects = EF_LOWPRECISION;
273                 setsize(wp, m1, m2);
274                 if (wp.wpflags & WAYPOINTFLAG_ITEM)
275                         wp.colormod = '1 0 0';
276                 else if (wp.wpflags & WAYPOINTFLAG_GENERATED)
277                         wp.colormod = '1 1 0';
278                 else
279                         wp.colormod = '1 1 1';
280         }
281         else
282                 wp.model = "";
283         wp.wpisbox = vlen(wp.size) > 0;
284         wp.enemy = NULL;
285         if (!(wp.wpflags & WAYPOINTFLAG_PERSONAL))
286                 wp.owner = NULL;
287         if (!(wp.wpflags & WAYPOINTFLAG_NORELINK))
288                 waypoint_clearlinks(wp);
289         // schedule an actual relink on next frame
290         setthink(wp, waypoint_think);
291         wp.nextthink = time;
292         wp.effects = EF_LOWPRECISION;
293 }
294
295 // spawnfunc_waypoint map entity
296 spawnfunc(waypoint)
297 {
298         setorigin(this, this.origin);
299         // schedule a relink after other waypoints have had a chance to spawn
300         waypoint_clearlinks(this);
301         //waypoint_schedulerelink(this);
302 }
303
304 // remove a spawnfunc_waypoint, and schedule all neighbors to relink
305 void waypoint_remove(entity e)
306 {
307         // tell all linked waypoints that they need to relink
308         waypoint_schedulerelink(e.wp00);
309         waypoint_schedulerelink(e.wp01);
310         waypoint_schedulerelink(e.wp02);
311         waypoint_schedulerelink(e.wp03);
312         waypoint_schedulerelink(e.wp04);
313         waypoint_schedulerelink(e.wp05);
314         waypoint_schedulerelink(e.wp06);
315         waypoint_schedulerelink(e.wp07);
316         waypoint_schedulerelink(e.wp08);
317         waypoint_schedulerelink(e.wp09);
318         waypoint_schedulerelink(e.wp10);
319         waypoint_schedulerelink(e.wp11);
320         waypoint_schedulerelink(e.wp12);
321         waypoint_schedulerelink(e.wp13);
322         waypoint_schedulerelink(e.wp14);
323         waypoint_schedulerelink(e.wp15);
324         waypoint_schedulerelink(e.wp16);
325         waypoint_schedulerelink(e.wp17);
326         waypoint_schedulerelink(e.wp18);
327         waypoint_schedulerelink(e.wp19);
328         waypoint_schedulerelink(e.wp20);
329         waypoint_schedulerelink(e.wp21);
330         waypoint_schedulerelink(e.wp22);
331         waypoint_schedulerelink(e.wp23);
332         waypoint_schedulerelink(e.wp24);
333         waypoint_schedulerelink(e.wp25);
334         waypoint_schedulerelink(e.wp26);
335         waypoint_schedulerelink(e.wp27);
336         waypoint_schedulerelink(e.wp28);
337         waypoint_schedulerelink(e.wp29);
338         waypoint_schedulerelink(e.wp30);
339         waypoint_schedulerelink(e.wp31);
340         // and now remove the spawnfunc_waypoint
341         remove(e);
342 }
343
344 // empties the map of waypoints
345 void waypoint_removeall()
346 {
347         entity head, next;
348         head = findchain(classname, "waypoint");
349         while (head)
350         {
351                 next = head.chain;
352                 remove(head);
353                 head = next;
354         }
355 }
356
357 // tell all waypoints to relink
358 // (is this useful at all?)
359 void waypoint_schedulerelinkall()
360 {
361         entity head;
362         relink_total = relink_walkculled = relink_pvsculled = relink_lengthculled = 0;
363         head = findchain(classname, "waypoint");
364         while (head)
365         {
366                 waypoint_schedulerelink(head);
367                 head = head.chain;
368         }
369 }
370
371 // Load waypoint links from file
372 float waypoint_load_links()
373 {
374         string filename, s;
375         float file, tokens, c = 0, found;
376         entity wp_from = NULL, wp_to;
377         vector wp_to_pos, wp_from_pos;
378         filename = strcat("maps/", mapname);
379         filename = strcat(filename, ".waypoints.cache");
380         file = fopen(filename, FILE_READ);
381
382         if (file < 0)
383         {
384                 LOG_TRACE("waypoint links load from ");
385                 LOG_TRACE(filename);
386                 LOG_TRACE(" failed\n");
387                 return false;
388         }
389
390         while ((s = fgets(file)))
391         {
392                 tokens = tokenizebyseparator(s, "*");
393
394                 if (tokens!=2)
395                 {
396                         // bad file format
397                         fclose(file);
398                         return false;
399                 }
400
401                 wp_from_pos     = stov(argv(0));
402                 wp_to_pos       = stov(argv(1));
403
404                 // Search "from" waypoint
405                 if(!wp_from || wp_from.origin!=wp_from_pos)
406                 {
407                         wp_from = findradius(wp_from_pos, 1);
408                         found = false;
409                         while(wp_from)
410                         {
411                                 if(vdist(wp_from.origin - wp_from_pos, <, 1))
412                                 if(wp_from.classname == "waypoint")
413                                 {
414                                         found = true;
415                                         break;
416                                 }
417                                 wp_from = wp_from.chain;
418                         }
419
420                         if(!found)
421                         {
422                                 LOG_TRACE("waypoint_load_links: couldn't find 'from' waypoint at ", vtos(wp_from.origin),"\n");
423                                 continue;
424                         }
425
426                 }
427
428                 // Search "to" waypoint
429                 wp_to = findradius(wp_to_pos, 1);
430                 found = false;
431                 while(wp_to)
432                 {
433                         if(vdist(wp_to.origin - wp_to_pos, <, 1))
434                         if(wp_to.classname == "waypoint")
435                         {
436                                 found = true;
437                                 break;
438                         }
439                         wp_to = wp_to.chain;
440                 }
441
442                 if(!found)
443                 {
444                         LOG_TRACE("waypoint_load_links: couldn't find 'to' waypoint at ", vtos(wp_to.origin),"\n");
445                         continue;
446                 }
447
448                 ++c;
449                 waypoint_addlink(wp_from, wp_to);
450         }
451
452         fclose(file);
453
454         LOG_TRACE("loaded ", ftos(c), " waypoint links from maps/", mapname, ".waypoints.cache\n");
455
456         botframe_cachedwaypointlinks = true;
457         return true;
458 }
459
460 void waypoint_load_links_hardwired()
461 {
462         string filename, s;
463         float file, tokens, c = 0, found;
464         entity wp_from = NULL, wp_to;
465         vector wp_to_pos, wp_from_pos;
466         filename = strcat("maps/", mapname);
467         filename = strcat(filename, ".waypoints.hardwired");
468         file = fopen(filename, FILE_READ);
469
470         botframe_loadedforcedlinks = true;
471
472         if (file < 0)
473         {
474                 LOG_TRACE("waypoint links load from ", filename, " failed\n");
475                 return;
476         }
477
478         while ((s = fgets(file)))
479         {
480                 if(substring(s, 0, 2)=="//")
481                         continue;
482
483                 if(substring(s, 0, 1)=="#")
484                         continue;
485
486                 tokens = tokenizebyseparator(s, "*");
487
488                 if (tokens!=2)
489                         continue;
490
491                 wp_from_pos     = stov(argv(0));
492                 wp_to_pos       = stov(argv(1));
493
494                 // Search "from" waypoint
495                 if(!wp_from || wp_from.origin!=wp_from_pos)
496                 {
497                         wp_from = findradius(wp_from_pos, 5);
498                         found = false;
499                         while(wp_from)
500                         {
501                                 if(vdist(wp_from.origin - wp_from_pos, <, 5))
502                                 if(wp_from.classname == "waypoint")
503                                 {
504                                         found = true;
505                                         break;
506                                 }
507                                 wp_from = wp_from.chain;
508                         }
509
510                         if(!found)
511                         {
512                                 LOG_INFO(strcat("NOTICE: Can not find waypoint at ", vtos(wp_from_pos), ". Path skipped\n"));
513                                 continue;
514                         }
515                 }
516
517                 // Search "to" waypoint
518                 wp_to = findradius(wp_to_pos, 5);
519                 found = false;
520                 while(wp_to)
521                 {
522                         if(vdist(wp_to.origin - wp_to_pos, <, 5))
523                         if(wp_to.classname == "waypoint")
524                         {
525                                 found = true;
526                                 break;
527                         }
528                         wp_to = wp_to.chain;
529                 }
530
531                 if(!found)
532                 {
533                         LOG_INFO(strcat("NOTICE: Can not find waypoint at ", vtos(wp_to_pos), ". Path skipped\n"));
534                         continue;
535                 }
536
537                 ++c;
538                 waypoint_addlink(wp_from, wp_to);
539                 wp_from.wphardwired = true;
540                 wp_to.wphardwired = true;
541         }
542
543         fclose(file);
544
545         LOG_TRACE("loaded ", ftos(c), " waypoint links from maps/", mapname, ".waypoints.hardwired\n");
546 }
547
548 entity waypoint_get_link(entity w, float i)
549 {
550         switch(i)
551         {
552                 case  0:return w.wp00;
553                 case  1:return w.wp01;
554                 case  2:return w.wp02;
555                 case  3:return w.wp03;
556                 case  4:return w.wp04;
557                 case  5:return w.wp05;
558                 case  6:return w.wp06;
559                 case  7:return w.wp07;
560                 case  8:return w.wp08;
561                 case  9:return w.wp09;
562                 case 10:return w.wp10;
563                 case 11:return w.wp11;
564                 case 12:return w.wp12;
565                 case 13:return w.wp13;
566                 case 14:return w.wp14;
567                 case 15:return w.wp15;
568                 case 16:return w.wp16;
569                 case 17:return w.wp17;
570                 case 18:return w.wp18;
571                 case 19:return w.wp19;
572                 case 20:return w.wp20;
573                 case 21:return w.wp21;
574                 case 22:return w.wp22;
575                 case 23:return w.wp23;
576                 case 24:return w.wp24;
577                 case 25:return w.wp25;
578                 case 26:return w.wp26;
579                 case 27:return w.wp27;
580                 case 28:return w.wp28;
581                 case 29:return w.wp29;
582                 case 30:return w.wp30;
583                 case 31:return w.wp31;
584                 default:return NULL;
585         }
586 }
587
588 // Save all waypoint links to a file
589 void waypoint_save_links()
590 {
591         string filename, s;
592         float file, c, i;
593         entity w, link;
594         filename = strcat("maps/", mapname);
595         filename = strcat(filename, ".waypoints.cache");
596         file = fopen(filename, FILE_WRITE);
597         if (file < 0)
598         {
599                 LOG_INFO("waypoint links save to ");
600                 LOG_INFO(filename);
601                 LOG_INFO(" failed\n");
602         }
603         c = 0;
604         w = findchain(classname, "waypoint");
605         while (w)
606         {
607                 for(i=0;i<32;++i)
608                 {
609                         // :S
610                         link = waypoint_get_link(w, i);
611                         if(link==NULL)
612                                 continue;
613
614                         s = strcat(vtos(w.origin), "*", vtos(link.origin), "\n");
615                         fputs(file, s);
616                         ++c;
617                 }
618                 w = w.chain;
619         }
620         fclose(file);
621         botframe_cachedwaypointlinks = true;
622
623         LOG_INFO("saved ");
624         LOG_INFO(ftos(c));
625         LOG_INFO(" waypoints links to maps/");
626         LOG_INFO(mapname);
627         LOG_INFO(".waypoints.cache\n");
628 }
629
630 // save waypoints to gamedir/data/maps/mapname.waypoints
631 void waypoint_saveall()
632 {
633         string filename, s;
634         float file, c;
635         entity w;
636         filename = strcat("maps/", mapname);
637         filename = strcat(filename, ".waypoints");
638         file = fopen(filename, FILE_WRITE);
639         if (file >= 0)
640         {
641                 c = 0;
642                 w = findchain(classname, "waypoint");
643                 while (w)
644                 {
645                         if (!(w.wpflags & WAYPOINTFLAG_GENERATED))
646                         {
647                                 s = strcat(vtos(w.origin + w.mins), "\n");
648                                 s = strcat(s, vtos(w.origin + w.maxs));
649                                 s = strcat(s, "\n");
650                                 s = strcat(s, ftos(w.wpflags));
651                                 s = strcat(s, "\n");
652                                 fputs(file, s);
653                                 c = c + 1;
654                         }
655                         w = w.chain;
656                 }
657                 fclose(file);
658                 bprint("saved ");
659                 bprint(ftos(c));
660                 bprint(" waypoints to maps/");
661                 bprint(mapname);
662                 bprint(".waypoints\n");
663         }
664         else
665         {
666                 bprint("waypoint save to ");
667                 bprint(filename);
668                 bprint(" failed\n");
669         }
670         waypoint_save_links();
671         botframe_loadedforcedlinks = false;
672 }
673
674 // load waypoints from file
675 float waypoint_loadall()
676 {
677         string filename, s;
678         float file, cwp, cwb, fl;
679         vector m1, m2;
680         cwp = 0;
681         cwb = 0;
682         filename = strcat("maps/", mapname);
683         filename = strcat(filename, ".waypoints");
684         file = fopen(filename, FILE_READ);
685         if (file >= 0)
686         {
687                 while ((s = fgets(file)))
688                 {
689                         m1 = stov(s);
690                         s = fgets(file);
691                         if (!s)
692                                 break;
693                         m2 = stov(s);
694                         s = fgets(file);
695                         if (!s)
696                                 break;
697                         fl = stof(s);
698                         waypoint_spawn(m1, m2, fl);
699                         if (m1 == m2)
700                                 cwp = cwp + 1;
701                         else
702                                 cwb = cwb + 1;
703                 }
704                 fclose(file);
705                 LOG_TRACE("loaded ", ftos(cwp), " waypoints and ", ftos(cwb), " wayboxes from maps/", mapname, ".waypoints\n");
706         }
707         else
708         {
709                 LOG_TRACE("waypoint load from ", filename, " failed\n");
710         }
711         return cwp + cwb;
712 }
713
714 vector waypoint_fixorigin(vector position)
715 {
716         tracebox(position + '0 0 1' * (1 - STAT(PL_MIN, NULL).z), STAT(PL_MIN, NULL), STAT(PL_MAX, NULL), position + '0 0 -512', MOVE_NOMONSTERS, NULL);
717         if(trace_fraction < 1)
718                 position = trace_endpos;
719         //traceline(position, position + '0 0 -512', MOVE_NOMONSTERS, NULL);
720         //print("position is ", ftos(trace_endpos_z - position_z), " above solid\n");
721         return position;
722 }
723
724 void waypoint_spawnforitem_force(entity e, vector org)
725 {
726         entity w;
727
728         // Fix the waypoint altitude if necessary
729         org = waypoint_fixorigin(org);
730
731         // don't spawn an item spawnfunc_waypoint if it already exists
732         w = findchain(classname, "waypoint");
733         while (w)
734         {
735                 if (w.wpisbox)
736                 {
737                         if (boxesoverlap(org, org, w.absmin, w.absmax))
738                         {
739                                 e.nearestwaypoint = w;
740                                 return;
741                         }
742                 }
743                 else
744                 {
745                         if (vlen(w.origin - org) < 16)
746                         {
747                                 e.nearestwaypoint = w;
748                                 return;
749                         }
750                 }
751                 w = w.chain;
752         }
753         e.nearestwaypoint = waypoint_spawn(org, org, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_ITEM);
754 }
755
756 void waypoint_spawnforitem(entity e)
757 {
758         if(!bot_waypoints_for_items)
759                 return;
760
761         waypoint_spawnforitem_force(e, e.origin);
762 }
763
764 void waypoint_spawnforteleporter_boxes(entity e, vector org1, vector org2, vector destination1, vector destination2, float timetaken)
765 {
766         entity w;
767         entity dw;
768         w = waypoint_spawn(org1, org2, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_TELEPORT | WAYPOINTFLAG_NORELINK);
769         dw = waypoint_spawn(destination1, destination2, WAYPOINTFLAG_GENERATED);
770         // one way link to the destination
771         w.wp00 = dw;
772         w.wp00mincost = timetaken; // this is just for jump pads
773         // the teleporter's nearest spawnfunc_waypoint is this one
774         // (teleporters are not goals, so this is probably useless)
775         e.nearestwaypoint = w;
776         e.nearestwaypointtimeout = time + 1000000000;
777 }
778
779 void waypoint_spawnforteleporter_v(entity e, vector org, vector destination, float timetaken)
780 {
781         org = waypoint_fixorigin(org);
782         destination = waypoint_fixorigin(destination);
783         waypoint_spawnforteleporter_boxes(e, org, org, destination, destination, timetaken);
784 }
785
786 void waypoint_spawnforteleporter(entity e, vector destination, float timetaken)
787 {
788         destination = waypoint_fixorigin(destination);
789         waypoint_spawnforteleporter_boxes(e, e.absmin, e.absmax, destination, destination, timetaken);
790 }
791
792 entity waypoint_spawnpersonal(entity this, vector position)
793 {
794         entity w;
795
796         // drop the waypoint to a proper location:
797         //   first move it up by a player height
798         //   then move it down to hit the floor with player bbox size
799         position = waypoint_fixorigin(position);
800
801         w = waypoint_spawn(position, position, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_PERSONAL);
802         w.nearestwaypoint = NULL;
803         w.nearestwaypointtimeout = 0;
804         w.owner = this;
805
806         waypoint_schedulerelink(w);
807
808         return w;
809 }
810
811 void botframe_showwaypointlinks()
812 {
813         entity head, w;
814         if (time < botframe_waypointeditorlightningtime)
815                 return;
816         botframe_waypointeditorlightningtime = time + 0.5;
817         FOREACH_CLIENT(IS_PLAYER(it) && !it.isbot, LAMBDA(
818                 if(IS_ONGROUND(it) || it.waterlevel > WATERLEVEL_NONE)
819                 {
820                         //navigation_testtracewalk = true;
821                         head = navigation_findnearestwaypoint(it, false);
822                 //      print("currently selected WP is ", etos(head), "\n");
823                         //navigation_testtracewalk = false;
824                         if (head)
825                         {
826                                 w = head     ;if (w) te_lightning2(NULL, w.origin, it.origin);
827                                 w = head.wp00;if (w) te_lightning2(NULL, w.origin, head.origin);
828                                 w = head.wp01;if (w) te_lightning2(NULL, w.origin, head.origin);
829                                 w = head.wp02;if (w) te_lightning2(NULL, w.origin, head.origin);
830                                 w = head.wp03;if (w) te_lightning2(NULL, w.origin, head.origin);
831                                 w = head.wp04;if (w) te_lightning2(NULL, w.origin, head.origin);
832                                 w = head.wp05;if (w) te_lightning2(NULL, w.origin, head.origin);
833                                 w = head.wp06;if (w) te_lightning2(NULL, w.origin, head.origin);
834                                 w = head.wp07;if (w) te_lightning2(NULL, w.origin, head.origin);
835                                 w = head.wp08;if (w) te_lightning2(NULL, w.origin, head.origin);
836                                 w = head.wp09;if (w) te_lightning2(NULL, w.origin, head.origin);
837                                 w = head.wp10;if (w) te_lightning2(NULL, w.origin, head.origin);
838                                 w = head.wp11;if (w) te_lightning2(NULL, w.origin, head.origin);
839                                 w = head.wp12;if (w) te_lightning2(NULL, w.origin, head.origin);
840                                 w = head.wp13;if (w) te_lightning2(NULL, w.origin, head.origin);
841                                 w = head.wp14;if (w) te_lightning2(NULL, w.origin, head.origin);
842                                 w = head.wp15;if (w) te_lightning2(NULL, w.origin, head.origin);
843                                 w = head.wp16;if (w) te_lightning2(NULL, w.origin, head.origin);
844                                 w = head.wp17;if (w) te_lightning2(NULL, w.origin, head.origin);
845                                 w = head.wp18;if (w) te_lightning2(NULL, w.origin, head.origin);
846                                 w = head.wp19;if (w) te_lightning2(NULL, w.origin, head.origin);
847                                 w = head.wp20;if (w) te_lightning2(NULL, w.origin, head.origin);
848                                 w = head.wp21;if (w) te_lightning2(NULL, w.origin, head.origin);
849                                 w = head.wp22;if (w) te_lightning2(NULL, w.origin, head.origin);
850                                 w = head.wp23;if (w) te_lightning2(NULL, w.origin, head.origin);
851                                 w = head.wp24;if (w) te_lightning2(NULL, w.origin, head.origin);
852                                 w = head.wp25;if (w) te_lightning2(NULL, w.origin, head.origin);
853                                 w = head.wp26;if (w) te_lightning2(NULL, w.origin, head.origin);
854                                 w = head.wp27;if (w) te_lightning2(NULL, w.origin, head.origin);
855                                 w = head.wp28;if (w) te_lightning2(NULL, w.origin, head.origin);
856                                 w = head.wp29;if (w) te_lightning2(NULL, w.origin, head.origin);
857                                 w = head.wp30;if (w) te_lightning2(NULL, w.origin, head.origin);
858                                 w = head.wp31;if (w) te_lightning2(NULL, w.origin, head.origin);
859                         }
860                 }
861         ));
862 }
863
864 float botframe_autowaypoints_fixdown(vector v)
865 {
866         tracebox(v, STAT(PL_MIN, NULL), STAT(PL_MAX, NULL), v + '0 0 -64', MOVE_NOMONSTERS, NULL);
867         if(trace_fraction >= 1)
868                 return 0;
869         return 1;
870 }
871
872 float botframe_autowaypoints_createwp(vector v, entity p, .entity fld, float f)
873 {
874         entity w;
875
876         w = find(NULL, classname, "waypoint");
877         while (w)
878         {
879                 // if a matching spawnfunc_waypoint already exists, don't add a duplicate
880                 if (boxesoverlap(v - '32 32 32', v + '32 32 32', w.absmin, w.absmax))
881                 //if (boxesoverlap(v - '4 4 4', v + '4 4 4', w.absmin, w.absmax))
882                         return 0;
883                 w = find(w, classname, "waypoint");
884         }
885
886         waypoint_schedulerelink(p.(fld) = waypoint_spawn(v, v, f));
887         return 1;
888 }
889
890 // return value:
891 //    1 = WP created
892 //    0 = no action needed
893 //   -1 = temp fail, try from world too
894 //   -2 = permanent fail, do not retry
895 float botframe_autowaypoints_fix_from(entity p, float walkfromwp, entity wp, .entity fld)
896 {
897         // make it possible to go from p to wp, if we can
898         // if wp is NULL, nearest is chosen
899
900         entity w;
901         vector porg;
902         float t, tmin, tmax;
903         vector o;
904         vector save;
905
906         if(!botframe_autowaypoints_fixdown(p.origin))
907                 return -2;
908         porg = trace_endpos;
909
910         if(wp)
911         {
912                 // if any WP w fulfills wp -> w -> porg and w is closer than wp, then switch from wp to w
913
914                 // if wp -> porg, then OK
915                 float maxdist;
916                 if(navigation_waypoint_will_link(wp.origin, porg, p, walkfromwp, 1050))
917                 {
918                         // we may find a better one
919                         maxdist = vlen(wp.origin - porg);
920                 }
921                 else
922                 {
923                         // accept any "good"
924                         maxdist = 2100;
925                 }
926
927                 float bestdist;
928                 bestdist = maxdist;
929                 w = find(NULL, classname, "waypoint");
930                 while (w)
931                 {
932                         if(w != wp && !(w.wpflags & WAYPOINTFLAG_NORELINK))
933                         {
934                                 float d;
935                                 d = vlen(wp.origin - w.origin) + vlen(w.origin - porg);
936                                 if(d < bestdist)
937                                         if(navigation_waypoint_will_link(wp.origin, w.origin, p, walkfromwp, 1050))
938                                                 if(navigation_waypoint_will_link(w.origin, porg, p, walkfromwp, 1050))
939                                                 {
940                                                         bestdist = d;
941                                                         p.(fld) = w;
942                                                 }
943                         }
944                         w = find(w, classname, "waypoint");
945                 }
946                 if(bestdist < maxdist)
947                 {
948                         LOG_INFO("update chain to new nearest WP ", etos(p.(fld)), "\n");
949                         return 0;
950                 }
951
952                 if(bestdist < 2100)
953                 {
954                         // we know maxdist < 2100
955                         // so wp -> porg is still valid
956                         // all is good
957                         p.(fld) = wp;
958                         return 0;
959                 }
960
961                 // otherwise, no existing WP can fix our issues
962         }
963         else
964         {
965                 save = p.origin;
966                 setorigin(p, porg);
967                 w = navigation_findnearestwaypoint(p, walkfromwp);
968                 setorigin(p, save);
969                 if(w)
970                 {
971                         p.(fld) = w;
972                         return 0;
973                 }
974         }
975
976         tmin = 0;
977         tmax = 1;
978         for (;;)
979         {
980                 if(tmax - tmin < 0.001)
981                 {
982                         // did not get a good candidate
983                         return -1;
984                 }
985
986                 t = (tmin + tmax) * 0.5;
987                 o = antilag_takebackorigin(p, CS(p), time - t);
988                 if(!botframe_autowaypoints_fixdown(o))
989                         return -2;
990                 o = trace_endpos;
991
992                 if(wp)
993                 {
994                         if(!navigation_waypoint_will_link(wp.origin, o, p, walkfromwp, 1050))
995                         {
996                                 // we cannot walk from wp.origin to o
997                                 // get closer to tmax
998                                 tmin = t;
999                                 continue;
1000                         }
1001                 }
1002                 else
1003                 {
1004                         save = p.origin;
1005                         setorigin(p, o);
1006                         w = navigation_findnearestwaypoint(p, walkfromwp);
1007                         setorigin(p, save);
1008                         if(!w)
1009                         {
1010                                 // we cannot walk from any WP to o
1011                                 // get closer to tmax
1012                                 tmin = t;
1013                                 continue;
1014                         }
1015                 }
1016
1017                 // if we get here, o is valid regarding waypoints
1018                 // check if o is connected right to the player
1019                 // we break if it succeeds, as that means o is a good waypoint location
1020                 if(navigation_waypoint_will_link(o, porg, p, walkfromwp, 1050))
1021                         break;
1022
1023                 // o is no good, we need to get closer to the player
1024                 tmax = t;
1025         }
1026
1027         LOG_INFO("spawning a waypoint for connecting to ", etos(wp), "\n");
1028         botframe_autowaypoints_createwp(o, p, fld, 0);
1029         return 1;
1030 }
1031
1032 // automatically create missing waypoints
1033 .entity botframe_autowaypoints_lastwp0, botframe_autowaypoints_lastwp1;
1034 void botframe_autowaypoints_fix(entity p, float walkfromwp, .entity fld)
1035 {
1036         float r = botframe_autowaypoints_fix_from(p, walkfromwp, p.(fld), fld);
1037         if(r != -1)
1038                 return;
1039         r = botframe_autowaypoints_fix_from(p, walkfromwp, NULL, fld);
1040         if(r != -1)
1041                 return;
1042
1043         LOG_INFO("emergency: got no good nearby WP to build a link from, starting a new chain\n");
1044         if(!botframe_autowaypoints_fixdown(p.origin))
1045                 return; // shouldn't happen, caught above
1046         botframe_autowaypoints_createwp(trace_endpos, p, fld, WAYPOINTFLAG_PROTECTED);
1047 }
1048
1049 void botframe_deleteuselesswaypoints()
1050 {
1051         entity w, w1, w2;
1052         float i, j, k;
1053         for (w = NULL; (w = findfloat(w, bot_pickup, true)); )
1054         {
1055                 // NOTE: this protects waypoints if they're the ONLY nearest
1056                 // waypoint. That's the intention.
1057                 navigation_findnearestwaypoint(w, false);  // Walk TO item.
1058                 navigation_findnearestwaypoint(w, true);  // Walk FROM item.
1059         }
1060         for (w = NULL; (w = find(w, classname, "waypoint")); )
1061         {
1062                 w.wpflags |= WAYPOINTFLAG_DEAD_END;
1063                 w.wpflags &= ~WAYPOINTFLAG_USEFUL;
1064                 // WP is useful if:
1065                 if (w.wpflags & WAYPOINTFLAG_ITEM)
1066                         w.wpflags |= WAYPOINTFLAG_USEFUL;
1067                 if (w.wpflags & WAYPOINTFLAG_TELEPORT)
1068                         w.wpflags |= WAYPOINTFLAG_USEFUL;
1069                 if (w.wpflags & WAYPOINTFLAG_PROTECTED)
1070                         w.wpflags |= WAYPOINTFLAG_USEFUL;
1071                 // b) WP is closest WP for an item/spawnpoint/other entity
1072                 //    This has been done above by protecting these WPs.
1073         }
1074         // c) There are w1, w, w2 so that w1 -> w, w -> w2 and not w1 -> w2.
1075         for (w1 = NULL; (w1 = find(w1, classname, "waypoint")); )
1076         {
1077                 if (w1.wpflags & WAYPOINTFLAG_PERSONAL)
1078                         continue;
1079                 for (i = 0; i < 32; ++i)
1080                 {
1081                         w = waypoint_get_link(w1, i);
1082                         if (!w)
1083                                 break;
1084                         if (w.wpflags & WAYPOINTFLAG_PERSONAL)
1085                                 continue;
1086                         if (w.wpflags & WAYPOINTFLAG_USEFUL)
1087                                 continue;
1088                         for (j = 0; j < 32; ++j)
1089                         {
1090                                 w2 = waypoint_get_link(w, j);
1091                                 if (!w2)
1092                                         break;
1093                                 if (w1 == w2)
1094                                         continue;
1095                                 if (w2.wpflags & WAYPOINTFLAG_PERSONAL)
1096                                         continue;
1097                                 // If we got here, w1 != w2 exist with w1 -> w
1098                                 // and w -> w2. That means the waypoint is not
1099                                 // a dead end.
1100                                 w.wpflags &= ~WAYPOINTFLAG_DEAD_END;
1101                                 for (k = 0; k < 32; ++k)
1102                                 {
1103                                         if (waypoint_get_link(w1, k) == w2)
1104                                                 continue;
1105                                         // IF WE GET HERE, w is proven useful
1106                                         // to get from w1 to w2!
1107                                         w.wpflags |= WAYPOINTFLAG_USEFUL;
1108                                         goto next;
1109                                 }
1110                         }
1111 LABEL(next)
1112                 }
1113         }
1114         // d) The waypoint is a dead end. Dead end waypoints must be kept as
1115         //     they are needed to complete routes while autowaypointing.
1116
1117         for (w = NULL; (w = find(w, classname, "waypoint")); )
1118         {
1119                 if (!(w.wpflags & (WAYPOINTFLAG_USEFUL | WAYPOINTFLAG_DEAD_END)))
1120                 {
1121                         LOG_INFOF("Removed a waypoint at %v. Try again for more!\n", w.origin);
1122                         te_explosion(w.origin);
1123                         waypoint_remove(w);
1124                         break;
1125                 }
1126         }
1127         for (w = NULL; (w = find(w, classname, "waypoint")); )
1128                 w.wpflags &= ~(WAYPOINTFLAG_USEFUL | WAYPOINTFLAG_DEAD_END); // temp flag
1129 }
1130
1131 void botframe_autowaypoints()
1132 {
1133         FOREACH_CLIENT(IS_PLAYER(it) && IS_REAL_CLIENT(it) && !IS_DEAD(it), LAMBDA(
1134                 // going back is broken, so only fix waypoints to walk TO the player
1135                 //botframe_autowaypoints_fix(p, false, botframe_autowaypoints_lastwp0);
1136                 botframe_autowaypoints_fix(it, true, botframe_autowaypoints_lastwp1);
1137                 //te_explosion(p.botframe_autowaypoints_lastwp0.origin);
1138         ));
1139
1140         if (autocvar_g_waypointeditor_auto >= 2) {
1141                 botframe_deleteuselesswaypoints();
1142         }
1143 }
1144