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1 // create a new spawnfunc_waypoint and automatically link it to other waypoints, and link
2 // them back to it as well
3 // (suitable for spawnfunc_waypoint editor)
4 entity waypoint_spawn(vector m1, vector m2, float f)
5 {
6         local entity w;
7         w = find(world, classname, "waypoint");
8
9         if not(f & WAYPOINTFLAG_PERSONAL)
10         while (w)
11         {
12                 // if a matching spawnfunc_waypoint already exists, don't add a duplicate
13                 if (boxesoverlap(m1, m2, w.absmin, w.absmax))
14                         return w;
15                 w = find(w, classname, "waypoint");
16         }
17
18         w = spawn();
19         w.dphitcontentsmask = DPCONTENTS_SOLID | DPCONTENTS_BODY | DPCONTENTS_PLAYERCLIP;
20         w.classname = "waypoint";
21         w.wpflags = f;
22         setorigin(w, (m1 + m2) * 0.5);
23         setsize(w, m1 - w.origin, m2 - w.origin);
24         if (vlen(w.size) > 0)
25                 w.wpisbox = TRUE;
26         
27         if(!w.wpisbox)
28         {
29                 setsize(w, PL_MIN - '1 1 0', PL_MAX + '1 1 0');
30                 if(!move_out_of_solid(w))
31                 {
32                         if(!(f & WAYPOINTFLAG_GENERATED))
33                         {
34                                 dprint("Killed a waypoint that was stuck in solid at ", vtos(w.origin), "\n");
35                                 remove(w);
36                                 return world;
37                         }
38                         else
39                         {
40                                 if(cvar("developer"))
41                                 {
42                                         print("A generated waypoint is stuck in solid at ", vtos(w.origin), "\n");
43                                         backtrace("Waypoint stuck");
44                                 }
45                         }
46                 }
47                 setsize(w, '0 0 0', '0 0 0');
48         }
49
50         waypoint_clearlinks(w);
51         //waypoint_schedulerelink(w);
52
53         if (cvar("g_waypointeditor"))
54         {
55                 m1 = w.mins;
56                 m2 = w.maxs;
57                 setmodel(w, "models/runematch/rune.mdl"); w.effects = EF_LOWPRECISION;
58                 setsize(w, m1, m2);
59                 if (w.wpflags & WAYPOINTFLAG_ITEM)
60                         w.colormod = '1 0 0';
61                 else if (w.wpflags & WAYPOINTFLAG_GENERATED)
62                         w.colormod = '1 1 0';
63                 else
64                         w.colormod = '1 1 1';
65         }
66         else
67                 w.model = "";
68
69         return w;
70 };
71
72 // add a new link to the spawnfunc_waypoint, replacing the furthest link it already has
73 void waypoint_addlink(entity from, entity to)
74 {
75         local float c;
76
77         if (from == to)
78                 return;
79         if (from.wpflags & WAYPOINTFLAG_NORELINK)
80                 return;
81
82         if (from.wp00 == to) return;if (from.wp01 == to) return;if (from.wp02 == to) return;if (from.wp03 == to) return;
83         if (from.wp04 == to) return;if (from.wp05 == to) return;if (from.wp06 == to) return;if (from.wp07 == to) return;
84         if (from.wp08 == to) return;if (from.wp09 == to) return;if (from.wp10 == to) return;if (from.wp11 == to) return;
85         if (from.wp12 == to) return;if (from.wp13 == to) return;if (from.wp14 == to) return;if (from.wp15 == to) return;
86         if (from.wp16 == to) return;if (from.wp17 == to) return;if (from.wp18 == to) return;if (from.wp19 == to) return;
87         if (from.wp20 == to) return;if (from.wp21 == to) return;if (from.wp22 == to) return;if (from.wp23 == to) return;
88         if (from.wp24 == to) return;if (from.wp25 == to) return;if (from.wp26 == to) return;if (from.wp27 == to) return;
89         if (from.wp28 == to) return;if (from.wp29 == to) return;if (from.wp30 == to) return;if (from.wp31 == to) return;
90
91         if (to.wpisbox || from.wpisbox)
92         {
93                 // if either is a box we have to find the nearest points on them to
94                 // calculate the distance properly
95                 local vector v1, v2, m1, m2;
96                 v1 = from.origin;
97                 m1 = to.absmin;
98                 m2 = to.absmax;
99                 v1_x = bound(m1_x, v1_x, m2_x);
100                 v1_y = bound(m1_y, v1_y, m2_y);
101                 v1_z = bound(m1_z, v1_z, m2_z);
102                 v2 = to.origin;
103                 m1 = from.absmin;
104                 m2 = from.absmax;
105                 v2_x = bound(m1_x, v2_x, m2_x);
106                 v2_y = bound(m1_y, v2_y, m2_y);
107                 v2_z = bound(m1_z, v2_z, m2_z);
108                 v2 = to.origin;
109                 c = vlen(v2 - v1);
110         }
111         else
112                 c = vlen(to.origin - from.origin);
113
114         if (from.wp31mincost < c) return;
115         if (from.wp30mincost < c) {from.wp31 = to;from.wp31mincost = c;return;} from.wp31 = from.wp30;from.wp31mincost = from.wp30mincost;
116         if (from.wp29mincost < c) {from.wp30 = to;from.wp30mincost = c;return;} from.wp30 = from.wp29;from.wp30mincost = from.wp29mincost;
117         if (from.wp28mincost < c) {from.wp29 = to;from.wp29mincost = c;return;} from.wp29 = from.wp28;from.wp29mincost = from.wp28mincost;
118         if (from.wp27mincost < c) {from.wp28 = to;from.wp28mincost = c;return;} from.wp28 = from.wp27;from.wp28mincost = from.wp27mincost;
119         if (from.wp26mincost < c) {from.wp27 = to;from.wp27mincost = c;return;} from.wp27 = from.wp26;from.wp27mincost = from.wp26mincost;
120         if (from.wp25mincost < c) {from.wp26 = to;from.wp26mincost = c;return;} from.wp26 = from.wp25;from.wp26mincost = from.wp25mincost;
121         if (from.wp24mincost < c) {from.wp25 = to;from.wp25mincost = c;return;} from.wp25 = from.wp24;from.wp25mincost = from.wp24mincost;
122         if (from.wp23mincost < c) {from.wp24 = to;from.wp24mincost = c;return;} from.wp24 = from.wp23;from.wp24mincost = from.wp23mincost;
123         if (from.wp22mincost < c) {from.wp23 = to;from.wp23mincost = c;return;} from.wp23 = from.wp22;from.wp23mincost = from.wp22mincost;
124         if (from.wp21mincost < c) {from.wp22 = to;from.wp22mincost = c;return;} from.wp22 = from.wp21;from.wp22mincost = from.wp21mincost;
125         if (from.wp20mincost < c) {from.wp21 = to;from.wp21mincost = c;return;} from.wp21 = from.wp20;from.wp21mincost = from.wp20mincost;
126         if (from.wp19mincost < c) {from.wp20 = to;from.wp20mincost = c;return;} from.wp20 = from.wp19;from.wp20mincost = from.wp19mincost;
127         if (from.wp18mincost < c) {from.wp19 = to;from.wp19mincost = c;return;} from.wp19 = from.wp18;from.wp19mincost = from.wp18mincost;
128         if (from.wp17mincost < c) {from.wp18 = to;from.wp18mincost = c;return;} from.wp18 = from.wp17;from.wp18mincost = from.wp17mincost;
129         if (from.wp16mincost < c) {from.wp17 = to;from.wp17mincost = c;return;} from.wp17 = from.wp16;from.wp17mincost = from.wp16mincost;
130         if (from.wp15mincost < c) {from.wp16 = to;from.wp16mincost = c;return;} from.wp16 = from.wp15;from.wp16mincost = from.wp15mincost;
131         if (from.wp14mincost < c) {from.wp15 = to;from.wp15mincost = c;return;} from.wp15 = from.wp14;from.wp15mincost = from.wp14mincost;
132         if (from.wp13mincost < c) {from.wp14 = to;from.wp14mincost = c;return;} from.wp14 = from.wp13;from.wp14mincost = from.wp13mincost;
133         if (from.wp12mincost < c) {from.wp13 = to;from.wp13mincost = c;return;} from.wp13 = from.wp12;from.wp13mincost = from.wp12mincost;
134         if (from.wp11mincost < c) {from.wp12 = to;from.wp12mincost = c;return;} from.wp12 = from.wp11;from.wp12mincost = from.wp11mincost;
135         if (from.wp10mincost < c) {from.wp11 = to;from.wp11mincost = c;return;} from.wp11 = from.wp10;from.wp11mincost = from.wp10mincost;
136         if (from.wp09mincost < c) {from.wp10 = to;from.wp10mincost = c;return;} from.wp10 = from.wp09;from.wp10mincost = from.wp09mincost;
137         if (from.wp08mincost < c) {from.wp09 = to;from.wp09mincost = c;return;} from.wp09 = from.wp08;from.wp09mincost = from.wp08mincost;
138         if (from.wp07mincost < c) {from.wp08 = to;from.wp08mincost = c;return;} from.wp08 = from.wp07;from.wp08mincost = from.wp07mincost;
139         if (from.wp06mincost < c) {from.wp07 = to;from.wp07mincost = c;return;} from.wp07 = from.wp06;from.wp07mincost = from.wp06mincost;
140         if (from.wp05mincost < c) {from.wp06 = to;from.wp06mincost = c;return;} from.wp06 = from.wp05;from.wp06mincost = from.wp05mincost;
141         if (from.wp04mincost < c) {from.wp05 = to;from.wp05mincost = c;return;} from.wp05 = from.wp04;from.wp05mincost = from.wp04mincost;
142         if (from.wp03mincost < c) {from.wp04 = to;from.wp04mincost = c;return;} from.wp04 = from.wp03;from.wp04mincost = from.wp03mincost;
143         if (from.wp02mincost < c) {from.wp03 = to;from.wp03mincost = c;return;} from.wp03 = from.wp02;from.wp03mincost = from.wp02mincost;
144         if (from.wp01mincost < c) {from.wp02 = to;from.wp02mincost = c;return;} from.wp02 = from.wp01;from.wp02mincost = from.wp01mincost;
145         if (from.wp00mincost < c) {from.wp01 = to;from.wp01mincost = c;return;} from.wp01 = from.wp00;from.wp01mincost = from.wp00mincost;
146         from.wp00 = to;from.wp00mincost = c;return;
147 };
148
149 // relink this spawnfunc_waypoint
150 // (precompile a list of all reachable waypoints from this spawnfunc_waypoint)
151 // (SLOW!)
152 void waypoint_think()
153 {
154         local entity e;
155         local vector sv, sm1, sm2, ev, em1, em2, dv;
156
157         stepheightvec = cvar("sv_stepheight") * '0 0 1';
158         bot_navigation_movemode = ((cvar("bot_navigation_ignoreplayers")) ? MOVE_NOMONSTERS : MOVE_NORMAL);
159
160         //dprint("waypoint_think wpisbox = ", ftos(self.wpisbox), "\n");
161         sm1 = self.origin + self.mins;
162         sm2 = self.origin + self.maxs;
163         for(e = world; (e = find(e, classname, "waypoint")); )
164         {
165                 if (boxesoverlap(self.absmin, self.absmax, e.absmin, e.absmax))
166                 {
167                         waypoint_addlink(self, e);
168                         waypoint_addlink(e, self);
169                 }
170                 else
171                 {
172                         ++relink_total;
173                         if(!checkpvs(self.origin, e))
174                         {
175                                 ++relink_pvsculled;
176                                 continue;
177                         }
178                         sv = e.origin;
179                         sv_x = bound(sm1_x, sv_x, sm2_x);
180                         sv_y = bound(sm1_y, sv_y, sm2_y);
181                         sv_z = bound(sm1_z, sv_z, sm2_z);
182                         ev = self.origin;
183                         em1 = e.origin + e.mins;
184                         em2 = e.origin + e.maxs;
185                         ev_x = bound(em1_x, ev_x, em2_x);
186                         ev_y = bound(em1_y, ev_y, em2_y);
187                         ev_z = bound(em1_z, ev_z, em2_z);
188                         dv = ev - sv;
189                         dv_z = 0;
190                         if (vlen(dv) >= 1050) // max search distance in XY
191                         {
192                                 ++relink_lengthculled;
193                                 continue;
194                         }
195                         navigation_testtracewalk = 0;
196                         if (!self.wpisbox)
197                         {
198                                 tracebox(sv - PL_MIN_z * '0 0 1', PL_MIN, PL_MAX, sv, FALSE, self);
199                                 if (!trace_startsolid)
200                                 {
201                                         //dprint("sv deviation", vtos(trace_endpos - sv), "\n");
202                                         sv = trace_endpos + '0 0 1';
203                                 }
204                         }
205                         if (!e.wpisbox)
206                         {
207                                 tracebox(ev - PL_MIN_z * '0 0 1', PL_MIN, PL_MAX, ev, FALSE, e);
208                                 if (!trace_startsolid)
209                                 {
210                                         //dprint("ev deviation", vtos(trace_endpos - ev), "\n");
211                                         ev = trace_endpos + '0 0 1';
212                                 }
213                         }
214                         //traceline(self.origin, e.origin, FALSE, world);
215                         //if (trace_fraction == 1)
216                         if (!self.wpisbox && tracewalk(self, sv, PL_MIN, PL_MAX, ev, MOVE_NOMONSTERS))
217                                 waypoint_addlink(self, e);
218                         else
219                                 relink_walkculled += 0.5;
220                         if (!e.wpisbox && tracewalk(e, ev, PL_MIN, PL_MAX, sv, MOVE_NOMONSTERS))
221                                 waypoint_addlink(e, self);
222                         else
223                                 relink_walkculled += 0.5;
224                 }
225         }
226         navigation_testtracewalk = 0;
227         self.wplinked = TRUE;
228 };
229
230 void waypoint_clearlinks(entity wp)
231 {
232         // clear links to other waypoints
233         local float f;
234         f = 10000000;
235         wp.wp00 = wp.wp01 = wp.wp02 = wp.wp03 = wp.wp04 = wp.wp05 = wp.wp06 = wp.wp07 = world;
236         wp.wp08 = wp.wp09 = wp.wp10 = wp.wp11 = wp.wp12 = wp.wp13 = wp.wp14 = wp.wp15 = world;
237         wp.wp16 = wp.wp17 = wp.wp18 = wp.wp19 = wp.wp20 = wp.wp21 = wp.wp22 = wp.wp23 = world;
238         wp.wp24 = wp.wp25 = wp.wp26 = wp.wp27 = wp.wp28 = wp.wp29 = wp.wp30 = wp.wp31 = world;
239
240         wp.wp00mincost = wp.wp01mincost = wp.wp02mincost = wp.wp03mincost = wp.wp04mincost = wp.wp05mincost = wp.wp06mincost = wp.wp07mincost = f;
241         wp.wp08mincost = wp.wp09mincost = wp.wp10mincost = wp.wp11mincost = wp.wp12mincost = wp.wp13mincost = wp.wp14mincost = wp.wp15mincost = f;
242         wp.wp16mincost = wp.wp17mincost = wp.wp18mincost = wp.wp19mincost = wp.wp20mincost = wp.wp21mincost = wp.wp22mincost = wp.wp23mincost = f;
243         wp.wp24mincost = wp.wp25mincost = wp.wp26mincost = wp.wp27mincost = wp.wp28mincost = wp.wp29mincost = wp.wp30mincost = wp.wp31mincost = f;
244
245         wp.wplinked = FALSE;
246 };
247
248 // tell a spawnfunc_waypoint to relink
249 void waypoint_schedulerelink(entity wp)
250 {
251         if (wp == world)
252                 return;
253         // TODO: add some sort of visible box in edit mode for box waypoints
254         if (cvar("g_waypointeditor"))
255         {
256                 local vector m1, m2;
257                 m1 = wp.mins;
258                 m2 = wp.maxs;
259                 setmodel(wp, "models/runematch/rune.mdl"); wp.effects = EF_LOWPRECISION;
260                 setsize(wp, m1, m2);
261                 if (wp.wpflags & WAYPOINTFLAG_ITEM)
262                         wp.colormod = '1 0 0';
263                 else if (wp.wpflags & WAYPOINTFLAG_GENERATED)
264                         wp.colormod = '1 1 0';
265                 else
266                         wp.colormod = '1 1 1';
267         }
268         else
269                 wp.model = "";
270         wp.wpisbox = vlen(wp.size) > 0;
271         wp.enemy = world;
272         if (!(wp.wpflags & WAYPOINTFLAG_PERSONAL))
273                 wp.owner = world;
274         if (!(wp.wpflags & WAYPOINTFLAG_NORELINK))
275                 waypoint_clearlinks(wp);
276         // schedule an actual relink on next frame
277         wp.think = waypoint_think;
278         wp.nextthink = time;
279         wp.effects = EF_LOWPRECISION;
280 }
281
282 // spawnfunc_waypoint map entity
283 void spawnfunc_waypoint()
284 {
285         setorigin(self, self.origin);
286         // schedule a relink after other waypoints have had a chance to spawn
287         waypoint_clearlinks(self);
288         //waypoint_schedulerelink(self);
289 };
290
291 // remove a spawnfunc_waypoint, and schedule all neighbors to relink
292 void waypoint_remove(entity e)
293 {
294         // tell all linked waypoints that they need to relink
295         waypoint_schedulerelink(e.wp00);
296         waypoint_schedulerelink(e.wp01);
297         waypoint_schedulerelink(e.wp02);
298         waypoint_schedulerelink(e.wp03);
299         waypoint_schedulerelink(e.wp04);
300         waypoint_schedulerelink(e.wp05);
301         waypoint_schedulerelink(e.wp06);
302         waypoint_schedulerelink(e.wp07);
303         waypoint_schedulerelink(e.wp08);
304         waypoint_schedulerelink(e.wp09);
305         waypoint_schedulerelink(e.wp10);
306         waypoint_schedulerelink(e.wp11);
307         waypoint_schedulerelink(e.wp12);
308         waypoint_schedulerelink(e.wp13);
309         waypoint_schedulerelink(e.wp14);
310         waypoint_schedulerelink(e.wp15);
311         waypoint_schedulerelink(e.wp16);
312         waypoint_schedulerelink(e.wp17);
313         waypoint_schedulerelink(e.wp18);
314         waypoint_schedulerelink(e.wp19);
315         waypoint_schedulerelink(e.wp20);
316         waypoint_schedulerelink(e.wp21);
317         waypoint_schedulerelink(e.wp22);
318         waypoint_schedulerelink(e.wp23);
319         waypoint_schedulerelink(e.wp24);
320         waypoint_schedulerelink(e.wp25);
321         waypoint_schedulerelink(e.wp26);
322         waypoint_schedulerelink(e.wp27);
323         waypoint_schedulerelink(e.wp28);
324         waypoint_schedulerelink(e.wp29);
325         waypoint_schedulerelink(e.wp30);
326         waypoint_schedulerelink(e.wp31);
327         // and now remove the spawnfunc_waypoint
328         remove(e);
329 };
330
331 // empties the map of waypoints
332 void waypoint_removeall()
333 {
334         local entity head, next;
335         head = findchain(classname, "waypoint");
336         while (head)
337         {
338                 next = head.chain;
339                 remove(head);
340                 head = next;
341         }
342 };
343
344 // tell all waypoints to relink
345 // (is this useful at all?)
346 void waypoint_schedulerelinkall()
347 {
348         local entity head;
349         relink_total = relink_walkculled = relink_pvsculled = relink_lengthculled = 0;
350         head = findchain(classname, "waypoint");
351         while (head)
352         {
353                 waypoint_schedulerelink(head);
354                 head = head.chain;
355         }
356 };
357
358 // Load waypoint links from file
359 float waypoint_load_links()
360 {
361         local string filename, s;
362         local float file, tokens, c, found;
363         local entity wp_from, wp_to;
364         local vector wp_to_pos, wp_from_pos;
365         filename = strcat("maps/", mapname);
366         filename = strcat(filename, ".waypoints.cache");
367         file = fopen(filename, FILE_READ);
368
369         if (file < 0)
370         {
371                 dprint("waypoint links load from ");
372                 dprint(filename);
373                 dprint(" failed\n");
374                 return FALSE;
375         }
376
377         while (1)
378         {
379                 s = fgets(file);
380                 if (!s)
381                         break;
382
383                 tokens = tokenizebyseparator(s, "*");
384
385                 if (tokens!=2)
386                 {
387                         // bad file format
388                         fclose(file);
389                         return FALSE;
390                 }
391
392                 wp_from_pos     = stov(argv(0));
393                 wp_to_pos       = stov(argv(1));
394
395                 // Search "from" waypoint
396                 if(wp_from.origin!=wp_from_pos)
397                 {
398                         wp_from = findradius(wp_from_pos, 1);
399                         found = FALSE;
400                         while(wp_from)
401                         {
402                                 if(vlen(wp_from.origin-wp_from_pos)<1)
403                                 if(wp_from.classname == "waypoint")
404                                 {
405                                         found = TRUE;
406                                         break;
407                                 }
408                                 wp_from = wp_from.chain;
409                         }
410
411                         if(!found)
412                         {
413                                 // can't find that waypoint
414                                 fclose(file);
415                                 return FALSE;
416                         }
417                 }
418
419                 // Search "to" waypoint
420                 wp_to = findradius(wp_to_pos, 1);
421                 found = FALSE;
422                 while(wp_to)
423                 {
424                         if(vlen(wp_to.origin-wp_to_pos)<1)
425                         if(wp_to.classname == "waypoint")
426                         {
427                                 found = TRUE;
428                                 break;
429                         }
430                         wp_to = wp_to.chain;
431                 }
432
433                 if(!found)
434                 {
435                         // can't find that waypoint
436                         fclose(file);
437                         return FALSE;
438                 }
439
440                 ++c;
441                 waypoint_addlink(wp_from, wp_to);
442         }
443
444         fclose(file);
445
446         dprint("loaded ");
447         dprint(ftos(c));
448         dprint(" waypoint links from maps/");
449         dprint(mapname);
450         dprint(".waypoints.cache\n");
451
452         botframe_cachedwaypointlinks = TRUE;
453         return TRUE;
454 };
455
456 void waypoint_load_links_hardwired()
457 {
458         local string filename, s;
459         local float file, tokens, c, found;
460         local entity wp_from, wp_to;
461         local vector wp_to_pos, wp_from_pos;
462         filename = strcat("maps/", mapname);
463         filename = strcat(filename, ".waypoints.hardwired");
464         file = fopen(filename, FILE_READ);
465
466         botframe_loadedforcedlinks = TRUE;
467
468         if (file < 0)
469         {
470                 dprint("waypoint links load from ");
471                 dprint(filename);
472                 dprint(" failed\n");
473                 return;
474         }
475
476         for (;;)
477         {
478                 s = fgets(file);
479                 if (!s)
480                         break;
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.origin!=wp_from_pos)
498                 {
499                         wp_from = findradius(wp_from_pos, 1);
500                         found = FALSE;
501                         while(wp_from)
502                         {
503                                 if(vlen(wp_from.origin-wp_from_pos)<1)
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                                 print(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, 1);
521                 found = FALSE;
522                 while(wp_to)
523                 {
524                         if(vlen(wp_to.origin-wp_to_pos)<1)
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                         print(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         }
542
543         fclose(file);
544
545         dprint("loaded ");
546         dprint(ftos(c));
547         dprint(" waypoint links from maps/");
548         dprint(mapname);
549         dprint(".waypoints.hardwired\n");
550 };
551
552 // Save all waypoint links to a file
553 void waypoint_save_links()
554 {
555         local string filename, s;
556         local float file, c, i;
557         local entity w, link;
558         filename = strcat("maps/", mapname);
559         filename = strcat(filename, ".waypoints.cache");
560         file = fopen(filename, FILE_WRITE);
561         if (file < 0)
562         {
563                 print("waypoint links save to ");
564                 print(filename);
565                 print(" failed\n");
566         }
567         c = 0;
568         w = findchain(classname, "waypoint");
569         while (w)
570         {
571                 for(i=0;i<32;++i)
572                 {
573                         // :S
574                         switch(i)
575                         {
576                                 //      for i in $(seq -w 0 31); do echo "case $i:link = w.wp$i; break;"; done;
577                                 case 00:link = w.wp00; break;
578                                 case 01:link = w.wp01; break;
579                                 case 02:link = w.wp02; break;
580                                 case 03:link = w.wp03; break;
581                                 case 04:link = w.wp04; break;
582                                 case 05:link = w.wp05; break;
583                                 case 06:link = w.wp06; break;
584                                 case 07:link = w.wp07; break;
585                                 case 08:link = w.wp08; break;
586                                 case 09:link = w.wp09; break;
587                                 case 10:link = w.wp10; break;
588                                 case 11:link = w.wp11; break;
589                                 case 12:link = w.wp12; break;
590                                 case 13:link = w.wp13; break;
591                                 case 14:link = w.wp14; break;
592                                 case 15:link = w.wp15; break;
593                                 case 16:link = w.wp16; break;
594                                 case 17:link = w.wp17; break;
595                                 case 18:link = w.wp18; break;
596                                 case 19:link = w.wp19; break;
597                                 case 20:link = w.wp20; break;
598                                 case 21:link = w.wp21; break;
599                                 case 22:link = w.wp22; break;
600                                 case 23:link = w.wp23; break;
601                                 case 24:link = w.wp24; break;
602                                 case 25:link = w.wp25; break;
603                                 case 26:link = w.wp26; break;
604                                 case 27:link = w.wp27; break;
605                                 case 28:link = w.wp28; break;
606                                 case 29:link = w.wp29; break;
607                                 case 30:link = w.wp30; break;
608                                 case 31:link = w.wp31; break;
609                         }
610
611                         if(link==world)
612                                 continue;
613
614                         s = strcat(vtos(w.origin), "*", vtos(link.origin), "\n");
615                         fputs(file, s);
616                         ++c;
617                 }
618                 w = w.chain;
619         }
620         fclose(file);
621         botframe_cachedwaypointlinks = TRUE;
622
623         print("saved ");
624         print(ftos(c));
625         print(" waypoints links to maps/");
626         print(mapname);
627         print(".waypoints.cache\n");
628 };
629
630 // save waypoints to gamedir/data/maps/mapname.waypoints
631 void waypoint_saveall()
632 {
633         local string filename, s;
634         local float file, c;
635         local entity w;
636         filename = strcat("maps/", mapname);
637         filename = strcat(filename, ".waypoints");
638         file = fopen(filename, FILE_WRITE);
639         if (file >= 0)
640         {
641                 c = 0;
642                 w = findchain(classname, "waypoint");
643                 while (w)
644                 {
645                         if (!(w.wpflags & WAYPOINTFLAG_GENERATED))
646                         {
647                                 s = strcat(vtos(w.origin + w.mins), "\n");
648                                 s = strcat(s, vtos(w.origin + w.maxs));
649                                 s = strcat(s, "\n");
650                                 s = strcat(s, ftos(w.wpflags));
651                                 s = strcat(s, "\n");
652                                 fputs(file, s);
653                                 c = c + 1;
654                         }
655                         w = w.chain;
656                 }
657                 fclose(file);
658                 bprint("saved ");
659                 bprint(ftos(c));
660                 bprint(" waypoints to maps/");
661                 bprint(mapname);
662                 bprint(".waypoints\n");
663         }
664         else
665         {
666                 bprint("waypoint save to ");
667                 bprint(filename);
668                 bprint(" failed\n");
669         }
670         waypoint_save_links();
671         botframe_loadedforcedlinks = FALSE;
672 };
673
674 // load waypoints from file
675 float waypoint_loadall()
676 {
677         local string filename, s;
678         local float file, cwp, cwb, fl;
679         local vector m1, m2;
680         cwp = 0;
681         cwb = 0;
682         filename = strcat("maps/", mapname);
683         filename = strcat(filename, ".waypoints");
684         file = fopen(filename, FILE_READ);
685         if (file >= 0)
686         {
687                 while (1)
688                 {
689                         s = fgets(file);
690                         if (!s)
691                                 break;
692                         m1 = stov(s);
693                         s = fgets(file);
694                         if (!s)
695                                 break;
696                         m2 = stov(s);
697                         s = fgets(file);
698                         if (!s)
699                                 break;
700                         fl = stof(s);
701                         waypoint_spawn(m1, m2, fl);
702                         if (m1 == m2)
703                                 cwp = cwp + 1;
704                         else
705                                 cwb = cwb + 1;
706                 }
707                 fclose(file);
708                 dprint("loaded ");
709                 dprint(ftos(cwp));
710                 dprint(" waypoints and ");
711                 dprint(ftos(cwb));
712                 dprint(" wayboxes from maps/");
713                 dprint(mapname);
714                 dprint(".waypoints\n");
715         }
716         else
717         {
718                 dprint("waypoint load from ");
719                 dprint(filename);
720                 dprint(" failed\n");
721         }
722         return cwp + cwb;
723 };
724
725 vector waypoint_fixorigin(vector position)
726 {
727         tracebox(position + '0 0 1' * (1 - PL_MIN_z), PL_MIN, PL_MAX, position + '0 0 -512', MOVE_NOMONSTERS, world);
728         if(trace_fraction < 1)
729                 position = trace_endpos;
730         //traceline(position, position + '0 0 -512', MOVE_NOMONSTERS, world);
731         //print("position is ", ftos(trace_endpos_z - position_z), " above solid\n");
732         return position;
733 }
734
735 void waypoint_spawnforitem_force(entity e, vector org)
736 {
737         local entity w;
738
739         // Fix the waypoint altitude if necessary
740         org = waypoint_fixorigin(org);
741
742         // don't spawn an item spawnfunc_waypoint if it already exists
743         w = findchain(classname, "waypoint");
744         while (w)
745         {
746                 if (w.wpisbox)
747                 {
748                         if (boxesoverlap(org, org, w.absmin, w.absmax))
749                         {
750                                 e.nearestwaypoint = w;
751                                 return;
752                         }
753                 }
754                 else
755                 {
756                         if (vlen(w.origin - org) < 16)
757                         {
758                                 e.nearestwaypoint = w;
759                                 return;
760                         }
761                 }
762                 w = w.chain;
763         }
764         e.nearestwaypoint = waypoint_spawn(org, org, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_ITEM);
765 }
766
767 void waypoint_spawnforitem(entity e)
768 {
769         if(!bot_waypoints_for_items)
770                 return;
771
772         waypoint_spawnforitem_force(e, e.origin);
773 };
774
775 void waypoint_spawnforteleporter(entity e, vector destination, float timetaken)
776 {
777         local entity w;
778         local entity dw;
779         w = waypoint_spawn(e.absmin, e.absmax, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_TELEPORT | WAYPOINTFLAG_NORELINK);
780         dw = waypoint_spawn(destination, destination, WAYPOINTFLAG_GENERATED);
781         // one way link to the destination
782         w.wp00 = dw;
783         w.wp00mincost = timetaken; // this is just for jump pads
784         // the teleporter's nearest spawnfunc_waypoint is this one
785         // (teleporters are not goals, so this is probably useless)
786         e.nearestwaypoint = w;
787         e.nearestwaypointtimeout = time + 1000000000;
788 };
789
790 entity waypoint_spawnpersonal(vector position)
791 {
792         entity w;
793
794         // drop the waypoint to a proper location:
795         //   first move it up by a player height
796         //   then move it down to hit the floor with player bbox size
797         position = waypoint_fixorigin(position);
798
799         w = waypoint_spawn(position, position, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_PERSONAL);
800         w.nearestwaypoint = world;
801         w.nearestwaypointtimeout = 0;
802         w.owner = self;
803
804         waypoint_schedulerelink(w);
805
806         return w;
807 };
808
809 void botframe_showwaypointlinks()
810 {
811         local entity player, head, w;
812         if (time < botframe_waypointeditorlightningtime)
813                 return;
814         botframe_waypointeditorlightningtime = time + 0.5;
815         player = find(world, classname, "player");
816         while (player)
817         {
818                 if (!player.isbot)
819                 if (player.flags & FL_ONGROUND || player.waterlevel > WATERLEVEL_NONE)
820                 {
821                         //navigation_testtracewalk = TRUE;
822                         head = navigation_findnearestwaypoint(player, FALSE);
823                 //      print("currently selected WP is ", etos(head), "\n");
824                         //navigation_testtracewalk = FALSE;
825                         if (head)
826                         {
827                                 w = head     ;if (w) te_lightning2(world, w.origin, player.origin);
828                                 w = head.wp00;if (w) te_lightning2(world, w.origin, head.origin);
829                                 w = head.wp01;if (w) te_lightning2(world, w.origin, head.origin);
830                                 w = head.wp02;if (w) te_lightning2(world, w.origin, head.origin);
831                                 w = head.wp03;if (w) te_lightning2(world, w.origin, head.origin);
832                                 w = head.wp04;if (w) te_lightning2(world, w.origin, head.origin);
833                                 w = head.wp05;if (w) te_lightning2(world, w.origin, head.origin);
834                                 w = head.wp06;if (w) te_lightning2(world, w.origin, head.origin);
835                                 w = head.wp07;if (w) te_lightning2(world, w.origin, head.origin);
836                                 w = head.wp08;if (w) te_lightning2(world, w.origin, head.origin);
837                                 w = head.wp09;if (w) te_lightning2(world, w.origin, head.origin);
838                                 w = head.wp10;if (w) te_lightning2(world, w.origin, head.origin);
839                                 w = head.wp11;if (w) te_lightning2(world, w.origin, head.origin);
840                                 w = head.wp12;if (w) te_lightning2(world, w.origin, head.origin);
841                                 w = head.wp13;if (w) te_lightning2(world, w.origin, head.origin);
842                                 w = head.wp14;if (w) te_lightning2(world, w.origin, head.origin);
843                                 w = head.wp15;if (w) te_lightning2(world, w.origin, head.origin);
844                                 w = head.wp16;if (w) te_lightning2(world, w.origin, head.origin);
845                                 w = head.wp17;if (w) te_lightning2(world, w.origin, head.origin);
846                                 w = head.wp18;if (w) te_lightning2(world, w.origin, head.origin);
847                                 w = head.wp19;if (w) te_lightning2(world, w.origin, head.origin);
848                                 w = head.wp20;if (w) te_lightning2(world, w.origin, head.origin);
849                                 w = head.wp21;if (w) te_lightning2(world, w.origin, head.origin);
850                                 w = head.wp22;if (w) te_lightning2(world, w.origin, head.origin);
851                                 w = head.wp23;if (w) te_lightning2(world, w.origin, head.origin);
852                                 w = head.wp24;if (w) te_lightning2(world, w.origin, head.origin);
853                                 w = head.wp25;if (w) te_lightning2(world, w.origin, head.origin);
854                                 w = head.wp26;if (w) te_lightning2(world, w.origin, head.origin);
855                                 w = head.wp27;if (w) te_lightning2(world, w.origin, head.origin);
856                                 w = head.wp28;if (w) te_lightning2(world, w.origin, head.origin);
857                                 w = head.wp29;if (w) te_lightning2(world, w.origin, head.origin);
858                                 w = head.wp30;if (w) te_lightning2(world, w.origin, head.origin);
859                                 w = head.wp31;if (w) te_lightning2(world, w.origin, head.origin);
860                         }
861                 }
862                 player = find(player, classname, "player");
863         }
864 };