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