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