qcsrc/server/bot/default/waypoints.qc

   1 #include "waypoints.qh"
   2
   3 #include <server/defs.qh>
   4 #include <server/miscfunctions.qh>
   5 #include "cvars.qh"
   6
   7 #include "bot.qh"
   8 #include "navigation.qh"
   9
  10 #include <common/state.qh>
  11
  12 #include "../../antilag.qh"
  13
  14 #include <common/constants.qh>
  15 #include <common/net_linked.qh>
  16 #include <common/physics/player.qh>
  17
  18 #include <lib/warpzone/common.qh>
  19 #include <lib/warpzone/util_server.qh>
  20
  21 .entity spawnpointmodel;
  22 void waypoint_unreachable(entity pl)
  23 {
  24         IL_EACH(g_waypoints, true,
  25         {
  26                 it.colormod = '0.5 0.5 0.5';
  27                 it.effects &= ~(EF_NODEPTHTEST | EF_RED | EF_BLUE);
  28         });
  29
  30         entity e2 = navigation_findnearestwaypoint(pl, false);
  31         if(!e2)
  32         {
  33                 LOG_INFOF("Can't find any waypoint nearby\n");
  34                 return;
  35         }
  36
  37         navigation_markroutes(pl, e2);
  38
  39         int j = 0;
  40         int m = 0;
  41         IL_EACH(g_waypoints, it.wpcost >= 10000000,
  42         {
  43                 LOG_INFO("unreachable: ", etos(it), " ", vtos(it.origin), "\n");
  44                 it.colormod_z = 8;
  45                 it.effects |= EF_NODEPTHTEST | EF_BLUE;
  46                 j++;
  47                 m++;
  48         });
  49         if (j) LOG_INFOF("%d waypoints cannot be reached from here in any way (marked with blue light)\n", j);
  50         navigation_markroutes_inverted(e2);
  51
  52         j = 0;
  53         IL_EACH(g_waypoints, it.wpcost >= 10000000,
  54         {
  55                 LOG_INFO("cannot reach me: ", etos(it), " ", vtos(it.origin), "\n");
  56                 it.colormod_x = 8;
  57                 if (!(it.effects & EF_NODEPTHTEST))  // not already reported before
  58                         m++;
  59                 it.effects |= EF_NODEPTHTEST | EF_RED;
  60                 j++;
  61         });
  62         if (j) LOG_INFOF("%d waypoints cannot walk to here in any way (marked with red light)\n", j);
  63         if (m) LOG_INFOF("%d waypoints have been marked total\n", m);
  64
  65         j = 0;
  66         IL_EACH(g_spawnpoints, true,
  67         {
  68                 if (navigation_findnearestwaypoint(it, false))
  69                 {
  70                         if(it.spawnpointmodel)
  71                         {
  72                                 delete(it.spawnpointmodel);
  73                                 it.spawnpointmodel = NULL;
  74                         }
  75                 }
  76                 else
  77                 {
  78                         if(!it.spawnpointmodel)
  79                         {
  80                                 tracebox(it.origin, PL_MIN_CONST, PL_MAX_CONST, it.origin - '0 0 512', MOVE_NOMONSTERS, NULL);
  81                                 entity e = new(spawnpointmodel);
  82                                 vector org = trace_endpos + eZ;
  83                                 setorigin(e, org);
  84                                 e.solid = SOLID_TRIGGER;
  85                                 it.spawnpointmodel = e;
  86                         }
  87                         LOG_INFO("spawn without waypoint: ", etos(it), " ", vtos(it.origin), "\n");
  88                         it.spawnpointmodel.effects |= EF_NODEPTHTEST;
  89                         _setmodel(it.spawnpointmodel, pl.model);
  90                         it.spawnpointmodel.frame = pl.frame;
  91                         it.spawnpointmodel.skin = pl.skin;
  92                         it.spawnpointmodel.colormap = pl.colormap;
  93                         it.spawnpointmodel.colormod = pl.colormod;
  94                         it.spawnpointmodel.glowmod = pl.glowmod;
  95                         setsize(it.spawnpointmodel, PL_MIN_CONST, PL_MAX_CONST);
  96                         j++;
  97                 }
  98         });
  99         if (j) LOG_INFOF("%d spawnpoints have no nearest waypoint (marked by player model)\n", j);
 100
 101         j = 0;
 102         IL_EACH(g_items, true,
 103         {
 104                 it.effects &= ~(EF_NODEPTHTEST | EF_RED | EF_BLUE);
 105                 it.colormod = '0.5 0.5 0.5';
 106         });
 107         IL_EACH(g_items, true,
 108         {
 109                 if (navigation_findnearestwaypoint(it, false))
 110                         continue;
 111                 LOG_INFO("item without waypoint: ", etos(it), " ", vtos(it.origin), "\n");
 112                 it.effects |= EF_NODEPTHTEST | EF_RED;
 113                 it.colormod_x = 8;
 114                 j++;
 115         });
 116         if (j) LOG_INFOF("%d items have no nearest waypoint and cannot be walked away from (marked with red light)\n", j);
 117
 118         j = 0;
 119         IL_EACH(g_items, true,
 120         {
 121                 if (navigation_findnearestwaypoint(it, true))
 122                         continue;
 123                 LOG_INFO("item without waypoint: ", etos(it), " ", vtos(it.origin), "\n");
 124                 it.effects |= EF_NODEPTHTEST | EF_BLUE;
 125                 it.colormod_z = 8;
 126                 j++;
 127         });
 128         if (j) LOG_INFOF("%d items have no nearest waypoint and cannot be walked to (marked with blue light)\n", j);
 129 }
 130
 131 vector waypoint_getSymmetricalOrigin(vector org, int ctf_flags)
 132 {
 133         vector new_org = org;
 134         if (fabs(autocvar_g_waypointeditor_symmetrical) == 1)
 135         {
 136                 vector map_center = havocbot_middlepoint;
 137                 if (autocvar_g_waypointeditor_symmetrical == -1)
 138                         map_center = autocvar_g_waypointeditor_symmetrical_origin;
 139
 140                 new_org = Rotate(org - map_center, 360 * DEG2RAD / ctf_flags) + map_center;
 141         }
 142         else if (fabs(autocvar_g_waypointeditor_symmetrical) == 2)
 143         {
 144                 float m = havocbot_symmetryaxis_equation.x;
 145                 float q = havocbot_symmetryaxis_equation.y;
 146                 if (autocvar_g_waypointeditor_symmetrical == -2)
 147                 {
 148                         m = autocvar_g_waypointeditor_symmetrical_axis.x;
 149                         q = autocvar_g_waypointeditor_symmetrical_axis.y;
 150                 }
 151
 152                 new_org.x = (1 / (1 + m*m)) * ((1 - m*m) * org.x + 2 * m * org.y - 2 * m * q);
 153                 new_org.y = (1 / (1 + m*m)) * (2 * m * org.x + (m*m - 1) * org.y + 2 * q);
 154         }
 155         new_org.z = org.z;
 156         return new_org;
 157 }
 158
 159 void waypoint_setupmodel(entity wp)
 160 {
 161         if (autocvar_g_waypointeditor)
 162         {
 163                 // TODO: add some sort of visible box in edit mode for box waypoints
 164                 vector m1 = wp.mins;
 165                 vector m2 = wp.maxs;
 166                 setmodel(wp, MDL_WAYPOINT);
 167                 setsize(wp, m1, m2);
 168                 wp.effects = EF_LOWPRECISION;
 169                 if (wp.wpflags & WAYPOINTFLAG_ITEM)
 170                         wp.colormod = '1 0 0';
 171                 else if (wp.wpflags & WAYPOINTFLAG_GENERATED)
 172                         wp.colormod = '1 1 0';
 173                 else if (wp.wphardwired)
 174                         wp.colormod = '0.5 0 1';
 175                 else
 176                         wp.colormod = '1 1 1';
 177         }
 178         else
 179                 wp.model = "";
 180 }
 181
 182 entity waypoint_spawn(vector m1, vector m2, float f)
 183 {
 184         if(!(f & (WAYPOINTFLAG_PERSONAL | WAYPOINTFLAG_GENERATED)) && m1 == m2)
 185         {
 186                 vector em1 = m1 - '8 8 8';
 187                 vector em2 = m2 + '8 8 8';
 188                 IL_EACH(g_waypoints, boxesoverlap(em1, em2, it.absmin, it.absmax),
 189                 {
 190                         return it;
 191                 });
 192         }
 193         // spawn only one destination waypoint for teleports teleporting player to the exact same spot
 194         // otherwise links loaded from file would be applied only to the first destination
 195         // waypoint since link format doesn't specify waypoint entities but just positions
 196         if((f & WAYPOINTFLAG_GENERATED) && !(f & WAYPOINTFLAG_NORELINK) && m1 == m2)
 197         {
 198                 IL_EACH(g_waypoints, boxesoverlap(m1, m2, it.absmin, it.absmax),
 199                 {
 200                         return it;
 201                 });
 202         }
 203
 204         entity w = new(waypoint);
 205         IL_PUSH(g_waypoints, w);
 206         w.dphitcontentsmask = DPCONTENTS_SOLID | DPCONTENTS_BODY | DPCONTENTS_PLAYERCLIP | DPCONTENTS_BOTCLIP;
 207         w.wpflags = f;
 208         w.solid = SOLID_TRIGGER;
 209         setorigin(w, (m1 + m2) * 0.5);
 210         setsize(w, m1 - w.origin, m2 - w.origin);
 211         if (w.size)
 212                 w.wpisbox = true;
 213
 214         if(!w.wpisbox)
 215         {
 216                 setsize(w, PL_MIN_CONST - '1 1 0', PL_MAX_CONST + '1 1 0');
 217                 if(!move_out_of_solid(w))
 218                 {
 219                         if(!(f & WAYPOINTFLAG_GENERATED))
 220                         {
 221                                 LOG_TRACE("Killed a waypoint that was stuck in solid at ", vtos(w.origin));
 222                                 delete(w);
 223                                 return NULL;
 224                         }
 225                         else
 226                         {
 227                                 if(autocvar_developer)
 228                                 {
 229                                         LOG_INFO("A generated waypoint is stuck in solid at ", vtos(w.origin));
 230                                         backtrace("Waypoint stuck");
 231                                 }
 232                         }
 233                 }
 234                 setsize(w, '0 0 0', '0 0 0');
 235         }
 236
 237         waypoint_clearlinks(w);
 238         //waypoint_schedulerelink(w);
 239
 240         waypoint_setupmodel(w);
 241
 242         return w;
 243 }
 244
 245 void waypoint_spawn_fromeditor(entity pl)
 246 {
 247         entity e;
 248         vector org = pl.origin;
 249         int ctf_flags = havocbot_symmetryaxis_equation.z;
 250         bool sym = ((autocvar_g_waypointeditor_symmetrical > 0 && ctf_flags >= 2)
 251                    || (autocvar_g_waypointeditor_symmetrical < 0));
 252         int order = ctf_flags;
 253         if(autocvar_g_waypointeditor_symmetrical_order >= 2)
 254         {
 255                 order = autocvar_g_waypointeditor_symmetrical_order;
 256                 ctf_flags = order;
 257         }
 258
 259         if(!PHYS_INPUT_BUTTON_CROUCH(pl))
 260         {
 261                 // snap waypoint to item's origin if close enough
 262                 IL_EACH(g_items, true,
 263                 {
 264                         vector item_org = (it.absmin + it.absmax) * 0.5;
 265                         item_org.z = it.absmin.z - PL_MIN_CONST.z;
 266                         if(vlen(item_org - org) < 30)
 267                         {
 268                                 org = item_org;
 269                                 break;
 270                         }
 271                 });
 272         }
 273
 274         LABEL(add_wp);
 275         e = waypoint_spawn(org, org, 0);
 276         if(!e)
 277         {
 278                 LOG_INFOF("Couldn't spawn waypoint at %v\n", org);
 279                 return;
 280         }
 281         waypoint_schedulerelink(e);
 282         bprint(strcat("Waypoint spawned at ", vtos(e.origin), "\n"));
 283         if(sym)
 284         {
 285                 org = waypoint_getSymmetricalOrigin(e.origin, ctf_flags);
 286                 if (vdist(org - pl.origin, >, 32))
 287                 {
 288                         if(order > 2)
 289                                 order--;
 290                         else
 291                                 sym = false;
 292                         goto add_wp;
 293                 }
 294         }
 295 }
 296
 297 void waypoint_remove(entity wp)
 298 {
 299         // tell all waypoints linked to wp that they need to relink
 300         IL_EACH(g_waypoints, it != wp,
 301         {
 302                 if (waypoint_islinked(it, wp))
 303                         waypoint_removelink(it, wp);
 304         });
 305         delete(wp);
 306 }
 307
 308 void waypoint_remove_fromeditor(entity pl)
 309 {
 310         entity e = navigation_findnearestwaypoint(pl, false);
 311
 312         int ctf_flags = havocbot_symmetryaxis_equation.z;
 313         bool sym = ((autocvar_g_waypointeditor_symmetrical > 0 && ctf_flags >= 2)
 314                    || (autocvar_g_waypointeditor_symmetrical < 0));
 315         int order = ctf_flags;
 316         if(autocvar_g_waypointeditor_symmetrical_order >= 2)
 317         {
 318                 order = autocvar_g_waypointeditor_symmetrical_order;
 319                 ctf_flags = order;
 320         }
 321
 322         LABEL(remove_wp);
 323         if (!e) return;
 324         if (e.wpflags & WAYPOINTFLAG_GENERATED) return;
 325
 326         if (e.wphardwired)
 327         {
 328                 LOG_INFO("^1Warning: ^7Removal of hardwired waypoints is not allowed in the editor. Please remove links from/to this waypoint (", vtos(e.origin), ") by hand from maps/", mapname, ".waypoints.hardwired\n");
 329                 return;
 330         }
 331
 332         entity wp_sym = NULL;
 333         if (sym)
 334         {
 335                 vector org = waypoint_getSymmetricalOrigin(e.origin, ctf_flags);
 336                 FOREACH_ENTITY_CLASS("waypoint", !(it.wpflags & WAYPOINTFLAG_GENERATED), {
 337                         if(vdist(org - it.origin, <, 3))
 338                         {
 339                                 wp_sym = it;
 340                                 break;
 341                         }
 342                 });
 343         }
 344
 345         bprint(strcat("Waypoint removed at ", vtos(e.origin), "\n"));
 346         waypoint_remove(e);
 347
 348         if (sym && wp_sym)
 349         {
 350                 e = wp_sym;
 351                 if(order > 2)
 352                         order--;
 353                 else
 354                         sym = false;
 355                 goto remove_wp;
 356         }
 357 }
 358
 359 void waypoint_removelink(entity from, entity to)
 360 {
 361         if (from == to || (from.wpflags & WAYPOINTFLAG_NORELINK))
 362                 return;
 363
 364         bool found = false;
 365         if (!found && from.wp00 == to) found = true; if (found) {from.wp00 = from.wp01; from.wp00mincost = from.wp01mincost;}
 366         if (!found && from.wp01 == to) found = true; if (found) {from.wp01 = from.wp02; from.wp01mincost = from.wp02mincost;}
 367         if (!found && from.wp02 == to) found = true; if (found) {from.wp02 = from.wp03; from.wp02mincost = from.wp03mincost;}
 368         if (!found && from.wp03 == to) found = true; if (found) {from.wp03 = from.wp04; from.wp03mincost = from.wp04mincost;}
 369         if (!found && from.wp04 == to) found = true; if (found) {from.wp04 = from.wp05; from.wp04mincost = from.wp05mincost;}
 370         if (!found && from.wp05 == to) found = true; if (found) {from.wp05 = from.wp06; from.wp05mincost = from.wp06mincost;}
 371         if (!found && from.wp06 == to) found = true; if (found) {from.wp06 = from.wp07; from.wp06mincost = from.wp07mincost;}
 372         if (!found && from.wp07 == to) found = true; if (found) {from.wp07 = from.wp08; from.wp07mincost = from.wp08mincost;}
 373         if (!found && from.wp08 == to) found = true; if (found) {from.wp08 = from.wp09; from.wp08mincost = from.wp09mincost;}
 374         if (!found && from.wp09 == to) found = true; if (found) {from.wp09 = from.wp10; from.wp09mincost = from.wp10mincost;}
 375         if (!found && from.wp10 == to) found = true; if (found) {from.wp10 = from.wp11; from.wp10mincost = from.wp11mincost;}
 376         if (!found && from.wp11 == to) found = true; if (found) {from.wp11 = from.wp12; from.wp11mincost = from.wp12mincost;}
 377         if (!found && from.wp12 == to) found = true; if (found) {from.wp12 = from.wp13; from.wp12mincost = from.wp13mincost;}
 378         if (!found && from.wp13 == to) found = true; if (found) {from.wp13 = from.wp14; from.wp13mincost = from.wp14mincost;}
 379         if (!found && from.wp14 == to) found = true; if (found) {from.wp14 = from.wp15; from.wp14mincost = from.wp15mincost;}
 380         if (!found && from.wp15 == to) found = true; if (found) {from.wp15 = from.wp16; from.wp15mincost = from.wp16mincost;}
 381         if (!found && from.wp16 == to) found = true; if (found) {from.wp16 = from.wp17; from.wp16mincost = from.wp17mincost;}
 382         if (!found && from.wp17 == to) found = true; if (found) {from.wp17 = from.wp18; from.wp17mincost = from.wp18mincost;}
 383         if (!found && from.wp18 == to) found = true; if (found) {from.wp18 = from.wp19; from.wp18mincost = from.wp19mincost;}
 384         if (!found && from.wp19 == to) found = true; if (found) {from.wp19 = from.wp20; from.wp19mincost = from.wp20mincost;}
 385         if (!found && from.wp20 == to) found = true; if (found) {from.wp20 = from.wp21; from.wp20mincost = from.wp21mincost;}
 386         if (!found && from.wp21 == to) found = true; if (found) {from.wp21 = from.wp22; from.wp21mincost = from.wp22mincost;}
 387         if (!found && from.wp22 == to) found = true; if (found) {from.wp22 = from.wp23; from.wp22mincost = from.wp23mincost;}
 388         if (!found && from.wp23 == to) found = true; if (found) {from.wp23 = from.wp24; from.wp23mincost = from.wp24mincost;}
 389         if (!found && from.wp24 == to) found = true; if (found) {from.wp24 = from.wp25; from.wp24mincost = from.wp25mincost;}
 390         if (!found && from.wp25 == to) found = true; if (found) {from.wp25 = from.wp26; from.wp25mincost = from.wp26mincost;}
 391         if (!found && from.wp26 == to) found = true; if (found) {from.wp26 = from.wp27; from.wp26mincost = from.wp27mincost;}
 392         if (!found && from.wp27 == to) found = true; if (found) {from.wp27 = from.wp28; from.wp27mincost = from.wp28mincost;}
 393         if (!found && from.wp28 == to) found = true; if (found) {from.wp28 = from.wp29; from.wp28mincost = from.wp29mincost;}
 394         if (!found && from.wp29 == to) found = true; if (found) {from.wp29 = from.wp30; from.wp29mincost = from.wp30mincost;}
 395         if (!found && from.wp30 == to) found = true; if (found) {from.wp30 = from.wp31; from.wp30mincost = from.wp31mincost;}
 396         if (found) {from.wp31 = NULL; from.wp31mincost = 10000000;}
 397 }
 398
 399 bool waypoint_islinked(entity from, entity to)
 400 {
 401         if (from.wp00 == to) return true;if (from.wp01 == to) return true;if (from.wp02 == to) return true;if (from.wp03 == to) return true;
 402         if (from.wp04 == to) return true;if (from.wp05 == to) return true;if (from.wp06 == to) return true;if (from.wp07 == to) return true;
 403         if (from.wp08 == to) return true;if (from.wp09 == to) return true;if (from.wp10 == to) return true;if (from.wp11 == to) return true;
 404         if (from.wp12 == to) return true;if (from.wp13 == to) return true;if (from.wp14 == to) return true;if (from.wp15 == to) return true;
 405         if (from.wp16 == to) return true;if (from.wp17 == to) return true;if (from.wp18 == to) return true;if (from.wp19 == to) return true;
 406         if (from.wp20 == to) return true;if (from.wp21 == to) return true;if (from.wp22 == to) return true;if (from.wp23 == to) return true;
 407         if (from.wp24 == to) return true;if (from.wp25 == to) return true;if (from.wp26 == to) return true;if (from.wp27 == to) return true;
 408         if (from.wp28 == to) return true;if (from.wp29 == to) return true;if (from.wp30 == to) return true;if (from.wp31 == to) return true;
 409         return false;
 410 }
 411
 412 void waypoint_updatecost_foralllinks()
 413 {
 414         IL_EACH(g_waypoints, !(it.wpflags & WAYPOINTFLAG_TELEPORT),
 415         {
 416                 if(it.wp00) it.wp00mincost = waypoint_getlinkcost(it, it.wp00);
 417                 if(it.wp01) it.wp01mincost = waypoint_getlinkcost(it, it.wp01);
 418                 if(it.wp02) it.wp02mincost = waypoint_getlinkcost(it, it.wp02);
 419                 if(it.wp03) it.wp03mincost = waypoint_getlinkcost(it, it.wp03);
 420                 if(it.wp04) it.wp04mincost = waypoint_getlinkcost(it, it.wp04);
 421                 if(it.wp05) it.wp05mincost = waypoint_getlinkcost(it, it.wp05);
 422                 if(it.wp06) it.wp06mincost = waypoint_getlinkcost(it, it.wp06);
 423                 if(it.wp07) it.wp07mincost = waypoint_getlinkcost(it, it.wp07);
 424                 if(it.wp08) it.wp08mincost = waypoint_getlinkcost(it, it.wp08);
 425                 if(it.wp09) it.wp09mincost = waypoint_getlinkcost(it, it.wp09);
 426                 if(it.wp10) it.wp10mincost = waypoint_getlinkcost(it, it.wp10);
 427                 if(it.wp11) it.wp11mincost = waypoint_getlinkcost(it, it.wp11);
 428                 if(it.wp12) it.wp12mincost = waypoint_getlinkcost(it, it.wp12);
 429                 if(it.wp13) it.wp13mincost = waypoint_getlinkcost(it, it.wp13);
 430                 if(it.wp14) it.wp14mincost = waypoint_getlinkcost(it, it.wp14);
 431                 if(it.wp15) it.wp15mincost = waypoint_getlinkcost(it, it.wp15);
 432                 if(it.wp16) it.wp16mincost = waypoint_getlinkcost(it, it.wp16);
 433                 if(it.wp17) it.wp17mincost = waypoint_getlinkcost(it, it.wp17);
 434                 if(it.wp18) it.wp18mincost = waypoint_getlinkcost(it, it.wp18);
 435                 if(it.wp19) it.wp19mincost = waypoint_getlinkcost(it, it.wp19);
 436                 if(it.wp20) it.wp20mincost = waypoint_getlinkcost(it, it.wp20);
 437                 if(it.wp21) it.wp21mincost = waypoint_getlinkcost(it, it.wp21);
 438                 if(it.wp22) it.wp22mincost = waypoint_getlinkcost(it, it.wp22);
 439                 if(it.wp23) it.wp23mincost = waypoint_getlinkcost(it, it.wp23);
 440                 if(it.wp24) it.wp24mincost = waypoint_getlinkcost(it, it.wp24);
 441                 if(it.wp25) it.wp25mincost = waypoint_getlinkcost(it, it.wp25);
 442                 if(it.wp26) it.wp26mincost = waypoint_getlinkcost(it, it.wp26);
 443                 if(it.wp27) it.wp27mincost = waypoint_getlinkcost(it, it.wp27);
 444                 if(it.wp28) it.wp28mincost = waypoint_getlinkcost(it, it.wp28);
 445                 if(it.wp29) it.wp29mincost = waypoint_getlinkcost(it, it.wp29);
 446                 if(it.wp30) it.wp30mincost = waypoint_getlinkcost(it, it.wp30);
 447                 if(it.wp31) it.wp31mincost = waypoint_getlinkcost(it, it.wp31);
 448         });
 449 }
 450
 451 float waypoint_getlinearcost(float dist)
 452 {
 453         if(skill >= autocvar_bot_ai_bunnyhop_skilloffset)
 454                 return dist / (autocvar_sv_maxspeed * 1.25);
 455         return dist / autocvar_sv_maxspeed;
 456 }
 457 float waypoint_getlinearcost_underwater(float dist)
 458 {
 459         // NOTE: underwater speed factor is hardcoded in the engine too, see SV_WaterMove
 460         return dist / (autocvar_sv_maxspeed * 0.7);
 461 }
 462
 463 float waypoint_gettravelcost(vector from, vector to, entity from_ent, entity to_ent)
 464 {
 465         bool submerged_from = navigation_check_submerged_state(from_ent, from);
 466         bool submerged_to = navigation_check_submerged_state(to_ent, to);
 467
 468         if (submerged_from && submerged_to)
 469                 return waypoint_getlinearcost_underwater(vlen(to - from));
 470
 471         float c = waypoint_getlinearcost(vlen(to - from));
 472
 473         float height = from.z - to.z;
 474         if(height > jumpheight_vec.z && autocvar_sv_gravity > 0)
 475         {
 476                 float height_cost = sqrt(height / (autocvar_sv_gravity / 2));
 477                 c = waypoint_getlinearcost(vlen(vec2(to - from))); // xy distance cost
 478                 if(height_cost > c)
 479                         c = height_cost;
 480         }
 481
 482         if (submerged_from || submerged_to)
 483                 return (c + waypoint_getlinearcost_underwater(vlen(to - from))) / 2;
 484         return c;
 485 }
 486
 487 float waypoint_getlinkcost(entity from, entity to)
 488 {
 489         vector v1 = from.origin;
 490         vector v2 = to.origin;
 491         if (from.wpisbox)
 492         {
 493                 vector m1 = from.absmin, m2 = from.absmax;
 494                 v1.x = bound(m1.x, v2.x, m2.x);
 495                 v1.y = bound(m1.y, v2.y, m2.y);
 496                 v1.z = bound(m1.z, v2.z, m2.z);
 497         }
 498         if (to.wpisbox)
 499         {
 500                 vector m1 = to.absmin, m2 = to.absmax;
 501                 v2.x = bound(m1.x, v1.x, m2.x);
 502                 v2.y = bound(m1.y, v1.y, m2.y);
 503                 v2.z = bound(m1.z, v1.z, m2.z);
 504         }
 505         return waypoint_gettravelcost(v1, v2, from, to);
 506 }
 507
 508 // add a new link to the spawnfunc_waypoint, replacing the furthest link it already has
 509 // if c == -1 automatically determine cost of the link
 510 void waypoint_addlink_customcost(entity from, entity to, float c)
 511 {
 512         if (from == to || waypoint_islinked(from, to))
 513                 return;
 514         if (c == -1 && (from.wpflags & WAYPOINTFLAG_NORELINK))
 515                 return;
 516
 517         if(c == -1)
 518                 c = waypoint_getlinkcost(from, to);
 519
 520         if (from.wp31mincost < c) return;
 521         if (from.wp30mincost < c) {from.wp31 = to;from.wp31mincost = c;return;} from.wp31 = from.wp30;from.wp31mincost = from.wp30mincost;
 522         if (from.wp29mincost < c) {from.wp30 = to;from.wp30mincost = c;return;} from.wp30 = from.wp29;from.wp30mincost = from.wp29mincost;
 523         if (from.wp28mincost < c) {from.wp29 = to;from.wp29mincost = c;return;} from.wp29 = from.wp28;from.wp29mincost = from.wp28mincost;
 524         if (from.wp27mincost < c) {from.wp28 = to;from.wp28mincost = c;return;} from.wp28 = from.wp27;from.wp28mincost = from.wp27mincost;
 525         if (from.wp26mincost < c) {from.wp27 = to;from.wp27mincost = c;return;} from.wp27 = from.wp26;from.wp27mincost = from.wp26mincost;
 526         if (from.wp25mincost < c) {from.wp26 = to;from.wp26mincost = c;return;} from.wp26 = from.wp25;from.wp26mincost = from.wp25mincost;
 527         if (from.wp24mincost < c) {from.wp25 = to;from.wp25mincost = c;return;} from.wp25 = from.wp24;from.wp25mincost = from.wp24mincost;
 528         if (from.wp23mincost < c) {from.wp24 = to;from.wp24mincost = c;return;} from.wp24 = from.wp23;from.wp24mincost = from.wp23mincost;
 529         if (from.wp22mincost < c) {from.wp23 = to;from.wp23mincost = c;return;} from.wp23 = from.wp22;from.wp23mincost = from.wp22mincost;
 530         if (from.wp21mincost < c) {from.wp22 = to;from.wp22mincost = c;return;} from.wp22 = from.wp21;from.wp22mincost = from.wp21mincost;
 531         if (from.wp20mincost < c) {from.wp21 = to;from.wp21mincost = c;return;} from.wp21 = from.wp20;from.wp21mincost = from.wp20mincost;
 532         if (from.wp19mincost < c) {from.wp20 = to;from.wp20mincost = c;return;} from.wp20 = from.wp19;from.wp20mincost = from.wp19mincost;
 533         if (from.wp18mincost < c) {from.wp19 = to;from.wp19mincost = c;return;} from.wp19 = from.wp18;from.wp19mincost = from.wp18mincost;
 534         if (from.wp17mincost < c) {from.wp18 = to;from.wp18mincost = c;return;} from.wp18 = from.wp17;from.wp18mincost = from.wp17mincost;
 535         if (from.wp16mincost < c) {from.wp17 = to;from.wp17mincost = c;return;} from.wp17 = from.wp16;from.wp17mincost = from.wp16mincost;
 536         if (from.wp15mincost < c) {from.wp16 = to;from.wp16mincost = c;return;} from.wp16 = from.wp15;from.wp16mincost = from.wp15mincost;
 537         if (from.wp14mincost < c) {from.wp15 = to;from.wp15mincost = c;return;} from.wp15 = from.wp14;from.wp15mincost = from.wp14mincost;
 538         if (from.wp13mincost < c) {from.wp14 = to;from.wp14mincost = c;return;} from.wp14 = from.wp13;from.wp14mincost = from.wp13mincost;
 539         if (from.wp12mincost < c) {from.wp13 = to;from.wp13mincost = c;return;} from.wp13 = from.wp12;from.wp13mincost = from.wp12mincost;
 540         if (from.wp11mincost < c) {from.wp12 = to;from.wp12mincost = c;return;} from.wp12 = from.wp11;from.wp12mincost = from.wp11mincost;
 541         if (from.wp10mincost < c) {from.wp11 = to;from.wp11mincost = c;return;} from.wp11 = from.wp10;from.wp11mincost = from.wp10mincost;
 542         if (from.wp09mincost < c) {from.wp10 = to;from.wp10mincost = c;return;} from.wp10 = from.wp09;from.wp10mincost = from.wp09mincost;
 543         if (from.wp08mincost < c) {from.wp09 = to;from.wp09mincost = c;return;} from.wp09 = from.wp08;from.wp09mincost = from.wp08mincost;
 544         if (from.wp07mincost < c) {from.wp08 = to;from.wp08mincost = c;return;} from.wp08 = from.wp07;from.wp08mincost = from.wp07mincost;
 545         if (from.wp06mincost < c) {from.wp07 = to;from.wp07mincost = c;return;} from.wp07 = from.wp06;from.wp07mincost = from.wp06mincost;
 546         if (from.wp05mincost < c) {from.wp06 = to;from.wp06mincost = c;return;} from.wp06 = from.wp05;from.wp06mincost = from.wp05mincost;
 547         if (from.wp04mincost < c) {from.wp05 = to;from.wp05mincost = c;return;} from.wp05 = from.wp04;from.wp05mincost = from.wp04mincost;
 548         if (from.wp03mincost < c) {from.wp04 = to;from.wp04mincost = c;return;} from.wp04 = from.wp03;from.wp04mincost = from.wp03mincost;
 549         if (from.wp02mincost < c) {from.wp03 = to;from.wp03mincost = c;return;} from.wp03 = from.wp02;from.wp03mincost = from.wp02mincost;
 550         if (from.wp01mincost < c) {from.wp02 = to;from.wp02mincost = c;return;} from.wp02 = from.wp01;from.wp02mincost = from.wp01mincost;
 551         if (from.wp00mincost < c) {from.wp01 = to;from.wp01mincost = c;return;} from.wp01 = from.wp00;from.wp01mincost = from.wp00mincost;
 552         from.wp00 = to;from.wp00mincost = c;return;
 553 }
 554
 555 void waypoint_addlink(entity from, entity to)
 556 {
 557         waypoint_addlink_customcost(from, to, -1);
 558 }
 559
 560 // relink this spawnfunc_waypoint
 561 // (precompile a list of all reachable waypoints from this spawnfunc_waypoint)
 562 // (SLOW!)
 563 void waypoint_think(entity this)
 564 {
 565         vector sv = '0 0 0', sv2 = '0 0 0', ev = '0 0 0', ev2 = '0 0 0', dv;
 566         float sv2_height = 0, ev2_height = 0;
 567
 568         bot_calculate_stepheightvec();
 569
 570         bot_navigation_movemode = ((autocvar_bot_navigation_ignoreplayers) ? MOVE_NOMONSTERS : MOVE_NORMAL);
 571
 572         //dprint("waypoint_think wpisbox = ", ftos(this.wpisbox), "\n");
 573         IL_EACH(g_waypoints, this != it,
 574         {
 575                 if (boxesoverlap(this.absmin, this.absmax, it.absmin, it.absmax))
 576                 {
 577                         waypoint_addlink(this, it);
 578                         waypoint_addlink(it, this);
 579                 }
 580                 else
 581                 {
 582                         ++relink_total;
 583                         if(!checkpvs(this.origin, it))
 584                         {
 585                                 ++relink_pvsculled;
 586                                 continue;
 587                         }
 588
 589                         sv = set_tracewalk_dest_2(this, it.origin);
 590                         sv2 = tracewalk_dest;
 591                         sv2_height = tracewalk_dest_height;
 592                         ev = set_tracewalk_dest_2(it, this.origin);
 593                         ev2 = tracewalk_dest;
 594                         ev2_height = tracewalk_dest_height;
 595
 596                         dv = ev - sv;
 597                         dv.z = 0;
 598                         if(vdist(dv, >=, 1050)) // max search distance in XY
 599                         {
 600                                 ++relink_lengthculled;
 601                                 continue;
 602                         }
 603
 604                         navigation_testtracewalk = 0;
 605
 606                         //traceline(this.origin, it.origin, false, NULL);
 607                         //if (trace_fraction == 1)
 608                         if (this.wpisbox)
 609                                 relink_walkculled += 0.5;
 610                         else
 611                         {
 612                                 if (tracewalk(this, sv, PL_MIN_CONST, PL_MAX_CONST, ev2, ev2_height, MOVE_NOMONSTERS))
 613                                         waypoint_addlink(this, it);
 614                                 else
 615                                         relink_walkculled += 0.5;
 616                         }
 617
 618                         if (it.wpisbox)
 619                                 relink_walkculled += 0.5;
 620                         else
 621                         {
 622                                 if (tracewalk(it, ev, PL_MIN_CONST, PL_MAX_CONST, sv2, sv2_height, MOVE_NOMONSTERS))
 623                                         waypoint_addlink(it, this);
 624                                 else
 625                                         relink_walkculled += 0.5;
 626                         }
 627                 }
 628         });
 629         navigation_testtracewalk = 0;
 630         this.wplinked = true;
 631 }
 632
 633 void waypoint_clearlinks(entity wp)
 634 {
 635         // clear links to other waypoints
 636         float f = 10000000;
 637         wp.wp00 = wp.wp01 = wp.wp02 = wp.wp03 = wp.wp04 = wp.wp05 = wp.wp06 = wp.wp07 = NULL;
 638         wp.wp08 = wp.wp09 = wp.wp10 = wp.wp11 = wp.wp12 = wp.wp13 = wp.wp14 = wp.wp15 = NULL;
 639         wp.wp16 = wp.wp17 = wp.wp18 = wp.wp19 = wp.wp20 = wp.wp21 = wp.wp22 = wp.wp23 = NULL;
 640         wp.wp24 = wp.wp25 = wp.wp26 = wp.wp27 = wp.wp28 = wp.wp29 = wp.wp30 = wp.wp31 = NULL;
 641
 642         wp.wp00mincost = wp.wp01mincost = wp.wp02mincost = wp.wp03mincost = wp.wp04mincost = wp.wp05mincost = wp.wp06mincost = wp.wp07mincost = f;
 643         wp.wp08mincost = wp.wp09mincost = wp.wp10mincost = wp.wp11mincost = wp.wp12mincost = wp.wp13mincost = wp.wp14mincost = wp.wp15mincost = f;
 644         wp.wp16mincost = wp.wp17mincost = wp.wp18mincost = wp.wp19mincost = wp.wp20mincost = wp.wp21mincost = wp.wp22mincost = wp.wp23mincost = f;
 645         wp.wp24mincost = wp.wp25mincost = wp.wp26mincost = wp.wp27mincost = wp.wp28mincost = wp.wp29mincost = wp.wp30mincost = wp.wp31mincost = f;
 646
 647         wp.wplinked = false;
 648 }
 649
 650 // tell a spawnfunc_waypoint to relink
 651 void waypoint_schedulerelink(entity wp)
 652 {
 653         if (wp == NULL)
 654                 return;
 655
 656         waypoint_setupmodel(wp);
 657         wp.wpisbox = vdist(wp.size, >, 0);
 658         wp.enemy = NULL;
 659         if (!(wp.wpflags & WAYPOINTFLAG_PERSONAL))
 660                 wp.owner = NULL;
 661         if (!(wp.wpflags & WAYPOINTFLAG_NORELINK))
 662                 waypoint_clearlinks(wp);
 663         // schedule an actual relink on next frame
 664         setthink(wp, waypoint_think);
 665         wp.nextthink = time;
 666         wp.effects = EF_LOWPRECISION;
 667 }
 668
 669 // spawnfunc_waypoint map entity
 670 spawnfunc(waypoint)
 671 {
 672         IL_PUSH(g_waypoints, this);
 673
 674         setorigin(this, this.origin);
 675         // schedule a relink after other waypoints have had a chance to spawn
 676         waypoint_clearlinks(this);
 677         //waypoint_schedulerelink(this);
 678 }
 679
 680 // tell all waypoints to relink
 681 // actually this is useful only to update relink_* stats
 682 void waypoint_schedulerelinkall()
 683 {
 684         relink_total = relink_walkculled = relink_pvsculled = relink_lengthculled = 0;
 685         IL_EACH(g_waypoints, true,
 686         {
 687                 waypoint_schedulerelink(it);
 688         });
 689         waypoint_load_links_hardwired();
 690 }
 691
 692 #define GET_GAMETYPE_EXTENSION() ((g_race) ? ".race" : "")
 693
 694 // Load waypoint links from file
 695 bool waypoint_load_links()
 696 {
 697         string s;
 698         float file, tokens, c = 0, found;
 699         entity wp_from = NULL, wp_to;
 700         vector wp_to_pos, wp_from_pos;
 701
 702         string gt_ext = GET_GAMETYPE_EXTENSION();
 703
 704         string filename = sprintf("maps/%s.waypoints.cache", strcat(mapname, gt_ext));
 705         file = fopen(filename, FILE_READ);
 706
 707         if (gt_ext != "" && file < 0)
 708         {
 709                 // if race waypoint file doesn't exist load the default one
 710                 filename = sprintf("maps/%s.waypoints.cache", mapname);
 711                 file = fopen(filename, FILE_READ);
 712         }
 713
 714         if (file < 0)
 715         {
 716                 LOG_TRACE("waypoint links load from ", filename, " failed");
 717                 waypoint_schedulerelinkall();
 718                 return false;
 719         }
 720
 721         bool parse_comments = true;
 722         float ver = 0;
 723
 724         while ((s = fgets(file)))
 725         {
 726                 if(parse_comments)
 727                 {
 728                         if(substring(s, 0, 2) == "//")
 729                         {
 730                                 if(substring(s, 2, 17) == "WAYPOINT_VERSION ")
 731                                         ver = stof(substring(s, 19, -1));
 732                                 continue;
 733                         }
 734                         else
 735                         {
 736                                 if(ver < WAYPOINT_VERSION)
 737                                 {
 738                                         LOG_TRACE("waypoint links for this map are outdated.");
 739                                         if (g_assault)
 740                                         {
 741                                                 LOG_TRACE("Assault waypoint links need to be manually updated in the editor");
 742                                         }
 743                                         else
 744                                         {
 745                                                 LOG_TRACE("automatically updating...");
 746                                                 waypoint_schedulerelinkall();
 747                                                 fclose(file);
 748                                                 return false;
 749                                         }
 750                                 }
 751                                 parse_comments = false;
 752                         }
 753                 }
 754
 755                 tokens = tokenizebyseparator(s, "*");
 756
 757                 if (tokens!=2)
 758                 {
 759                         // bad file format
 760                         fclose(file);
 761                         waypoint_schedulerelinkall(); // link all the autogenerated waypoints (teleporters)
 762                         return false;
 763                 }
 764
 765                 wp_from_pos     = stov(argv(0));
 766                 wp_to_pos       = stov(argv(1));
 767
 768                 // Search "from" waypoint
 769                 if(!wp_from || wp_from.origin!=wp_from_pos)
 770                 {
 771                         wp_from = findradius(wp_from_pos, 1);
 772                         found = false;
 773                         while(wp_from)
 774                         {
 775                                 if(vdist(wp_from.origin - wp_from_pos, <, 1))
 776                                 if(wp_from.classname == "waypoint")
 777                                 {
 778                                         found = true;
 779                                         break;
 780                                 }
 781                                 wp_from = wp_from.chain;
 782                         }
 783
 784                         if(!found)
 785                         {
 786                                 LOG_TRACE("waypoint_load_links: couldn't find 'from' waypoint at ", vtos(wp_from_pos));
 787                                 continue;
 788                         }
 789                 }
 790
 791                 // Search "to" waypoint
 792                 wp_to = findradius(wp_to_pos, 1);
 793                 found = false;
 794                 while(wp_to)
 795                 {
 796                         if(vdist(wp_to.origin - wp_to_pos, <, 1))
 797                         if(wp_to.classname == "waypoint")
 798                         {
 799                                 found = true;
 800                                 break;
 801                         }
 802                         wp_to = wp_to.chain;
 803                 }
 804
 805                 if(!found)
 806                 {
 807                         LOG_TRACE("waypoint_load_links: couldn't find 'to' waypoint at ", vtos(wp_to_pos));
 808                         continue;
 809                 }
 810
 811                 ++c;
 812                 waypoint_addlink(wp_from, wp_to);
 813         }
 814
 815         fclose(file);
 816
 817         LOG_TRACE("loaded ", ftos(c), " waypoint links from ", filename);
 818
 819         bool scheduled = false;
 820         IL_EACH(g_waypoints, it.wpflags & WAYPOINTFLAG_ITEM,
 821         {
 822                 if (!it.wp00)
 823                 {
 824                         waypoint_schedulerelink(it);
 825                         scheduled = true;
 826                 }
 827         });
 828         if (scheduled)
 829                 return false;
 830
 831         botframe_cachedwaypointlinks = true;
 832         return true;
 833 }
 834
 835 void waypoint_load_or_remove_links_hardwired(bool removal_mode)
 836 {
 837         string s;
 838         float file, tokens, c = 0, found;
 839         entity wp_from = NULL, wp_to;
 840         vector wp_to_pos, wp_from_pos;
 841
 842         string gt_ext = GET_GAMETYPE_EXTENSION();
 843
 844         string filename = sprintf("maps/%s.waypoints.hardwired", strcat(mapname, gt_ext));
 845         file = fopen(filename, FILE_READ);
 846
 847         if (gt_ext != "" && file < 0)
 848         {
 849                 // if race waypoint file doesn't exist load the default one
 850                 filename = sprintf("maps/%s.waypoints.hardwired", mapname);
 851                 file = fopen(filename, FILE_READ);
 852         }
 853
 854         botframe_loadedforcedlinks = true;
 855
 856         if (file < 0)
 857         {
 858                 if(!removal_mode)
 859                         LOG_TRACE("waypoint links load from ", filename, " failed");
 860                 return;
 861         }
 862
 863         while ((s = fgets(file)))
 864         {
 865                 if(substring(s, 0, 2)=="//")
 866                         continue;
 867
 868                 if(substring(s, 0, 1)=="#")
 869                         continue;
 870
 871                 tokens = tokenizebyseparator(s, "*");
 872
 873                 if (tokens!=2)
 874                         continue;
 875
 876                 wp_from_pos     = stov(argv(0));
 877                 wp_to_pos       = stov(argv(1));
 878
 879                 // Search "from" waypoint
 880                 if(!wp_from || wp_from.origin!=wp_from_pos)
 881                 {
 882                         wp_from = findradius(wp_from_pos, 5);
 883                         found = false;
 884                         while(wp_from)
 885                         {
 886                                 if(vdist(wp_from.origin - wp_from_pos, <, 5))
 887                                 if(wp_from.classname == "waypoint")
 888                                 {
 889                                         found = true;
 890                                         break;
 891                                 }
 892                                 wp_from = wp_from.chain;
 893                         }
 894
 895                         if(!found)
 896                         {
 897                                 if(!removal_mode)
 898                                         LOG_INFO("NOTICE: Can not find waypoint at ", vtos(wp_from_pos), ". Path skipped");
 899                                 continue;
 900                         }
 901                 }
 902
 903                 // Search "to" waypoint
 904                 wp_to = findradius(wp_to_pos, 5);
 905                 found = false;
 906                 while(wp_to)
 907                 {
 908                         if(vdist(wp_to.origin - wp_to_pos, <, 5))
 909                         if(wp_to.classname == "waypoint")
 910                         {
 911                                 found = true;
 912                                 break;
 913                         }
 914                         wp_to = wp_to.chain;
 915                 }
 916
 917                 if(!found)
 918                 {
 919                         if(!removal_mode)
 920                                 LOG_INFO("NOTICE: Can not find waypoint at ", vtos(wp_to_pos), ". Path skipped");
 921                         continue;
 922                 }
 923
 924                 ++c;
 925                 if(removal_mode)
 926                 {
 927                         waypoint_removelink(wp_from, wp_to);
 928                         continue;
 929                 }
 930
 931                 waypoint_addlink(wp_from, wp_to);
 932                 wp_from.wphardwired = true;
 933                 wp_to.wphardwired = true;
 934                 waypoint_setupmodel(wp_from);
 935                 waypoint_setupmodel(wp_to);
 936         }
 937
 938         fclose(file);
 939
 940         LOG_TRACE(((removal_mode) ? "unloaded " : "loaded "),
 941                 ftos(c), " waypoint links from maps/", mapname, ".waypoints.hardwired");
 942 }
 943
 944 entity waypoint_get_link(entity w, float i)
 945 {
 946         switch(i)
 947         {
 948                 case  0:return w.wp00;
 949                 case  1:return w.wp01;
 950                 case  2:return w.wp02;
 951                 case  3:return w.wp03;
 952                 case  4:return w.wp04;
 953                 case  5:return w.wp05;
 954                 case  6:return w.wp06;
 955                 case  7:return w.wp07;
 956                 case  8:return w.wp08;
 957                 case  9:return w.wp09;
 958                 case 10:return w.wp10;
 959                 case 11:return w.wp11;
 960                 case 12:return w.wp12;
 961                 case 13:return w.wp13;
 962                 case 14:return w.wp14;
 963                 case 15:return w.wp15;
 964                 case 16:return w.wp16;
 965                 case 17:return w.wp17;
 966                 case 18:return w.wp18;
 967                 case 19:return w.wp19;
 968                 case 20:return w.wp20;
 969                 case 21:return w.wp21;
 970                 case 22:return w.wp22;
 971                 case 23:return w.wp23;
 972                 case 24:return w.wp24;
 973                 case 25:return w.wp25;
 974                 case 26:return w.wp26;
 975                 case 27:return w.wp27;
 976                 case 28:return w.wp28;
 977                 case 29:return w.wp29;
 978                 case 30:return w.wp30;
 979                 case 31:return w.wp31;
 980                 default:return NULL;
 981         }
 982 }
 983
 984 // Save all waypoint links to a file
 985 void waypoint_save_links()
 986 {
 987         // temporarily remove hardwired links so they don't get saved among normal links
 988         waypoint_remove_links_hardwired();
 989
 990         string gt_ext = GET_GAMETYPE_EXTENSION();
 991
 992         string filename = sprintf("maps/%s.waypoints.cache", strcat(mapname, gt_ext));
 993         int file = fopen(filename, FILE_WRITE);
 994         if (file < 0)
 995         {
 996                 LOG_INFOF("waypoint link save to %s failed", filename);
 997                 return;
 998         }
 999
1000         fputs(file, strcat("//", "WAYPOINT_VERSION ", ftos_decimals(WAYPOINT_VERSION, 2), "\n"));
1001
1002         int c = 0;
1003         IL_EACH(g_waypoints, true,
1004         {
1005                 for(int j = 0; j < 32; ++j)
1006                 {
1007                         entity link = waypoint_get_link(it, j);
1008                         if(link)
1009                         {
1010                                 string s = strcat(vtos(it.origin), "*", vtos(link.origin), "\n");
1011                                 fputs(file, s);
1012                                 ++c;
1013                         }
1014                 }
1015         });
1016         fclose(file);
1017
1018         botframe_cachedwaypointlinks = true;
1019
1020         LOG_INFOF("saved %d waypoint links to %s", c, filename);
1021
1022         waypoint_load_links_hardwired();
1023 }
1024
1025 // save waypoints to gamedir/data/maps/mapname.waypoints
1026 void waypoint_saveall()
1027 {
1028         string gt_ext = GET_GAMETYPE_EXTENSION();
1029
1030         string filename = sprintf("maps/%s.waypoints", strcat(mapname, gt_ext));
1031         int file = fopen(filename, FILE_WRITE);
1032         if (file < 0)
1033         {
1034                 waypoint_save_links(); // save anyway?
1035                 botframe_loadedforcedlinks = false;
1036
1037                 LOG_INFOF("waypoint links: save to %s failed", filename);
1038                 return;
1039         }
1040
1041         float sym = autocvar_g_waypointeditor_symmetrical;
1042         string sym_str = ftos(sym);
1043         if (sym == -1 || (sym == 1 && autocvar_g_waypointeditor_symmetrical_order >= 2))
1044         {
1045                 if (sym == 1)
1046                 {
1047                         sym_str = cons(sym_str, "-");
1048                         sym_str = cons(sym_str, "-");
1049                 }
1050                 else
1051                 {
1052                         sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_origin.x));
1053                         sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_origin.y));
1054                 }
1055                 if (autocvar_g_waypointeditor_symmetrical_order >= 2)
1056                         sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_order));
1057         }
1058         else if (autocvar_g_waypointeditor_symmetrical == -2)
1059         {
1060                 sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_axis.x));
1061                 sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_axis.y));
1062         }
1063
1064         // a group of 3 comments doesn't break compatibility with older Xonotic versions
1065         // (they are read as a waypoint with origin '0 0 0' and flag 0 though)
1066         fputs(file, strcat("//", "WAYPOINT_VERSION ", ftos_decimals(WAYPOINT_VERSION, 2), "\n"));
1067         fputs(file, strcat("//", "WAYPOINT_SYMMETRY ", sym_str, "\n"));
1068         fputs(file, strcat("//", "\n"));
1069
1070         int c = 0;
1071         IL_EACH(g_waypoints, true,
1072         {
1073                 if(it.wpflags & WAYPOINTFLAG_GENERATED)
1074                         continue;
1075
1076                 string s;
1077                 s = strcat(vtos(it.origin + it.mins), "\n");
1078                 s = strcat(s, vtos(it.origin + it.maxs));
1079                 s = strcat(s, "\n");
1080                 s = strcat(s, ftos(it.wpflags));
1081                 s = strcat(s, "\n");
1082                 fputs(file, s);
1083                 c++;
1084         });
1085         fclose(file);
1086         waypoint_save_links();
1087         botframe_loadedforcedlinks = false;
1088
1089         LOG_INFOF("saved %d waypoints to %s", c, filename);
1090 }
1091
1092 // load waypoints from file
1093 float waypoint_loadall()
1094 {
1095         string s;
1096         float file, cwp, cwb, fl;
1097         vector m1, m2;
1098         cwp = 0;
1099         cwb = 0;
1100
1101         string gt_ext = GET_GAMETYPE_EXTENSION();
1102
1103         string filename = sprintf("maps/%s.waypoints", strcat(mapname, gt_ext));
1104         file = fopen(filename, FILE_READ);
1105
1106         if (gt_ext != "" && file < 0)
1107         {
1108                 // if race waypoint file doesn't exist load the default one
1109                 filename = sprintf("maps/%s.waypoints", mapname);
1110                 file = fopen(filename, FILE_READ);
1111         }
1112
1113         if (file < 0)
1114         {
1115                 LOG_TRACE("waypoint load from ", filename, " failed");
1116                 return 0;
1117         }
1118
1119         bool parse_comments = true;
1120         float ver = 0;
1121         float sym = 0;
1122         float sym_param1 = 0, sym_param2 = 0, sym_param3 = 0;
1123
1124         while ((s = fgets(file)))
1125         {
1126                 if(parse_comments)
1127                 {
1128                         if(substring(s, 0, 2) == "//")
1129                         {
1130                                 if(substring(s, 2, 17) == "WAYPOINT_VERSION ")
1131                                         ver = stof(substring(s, 19, -1));
1132                                 else if(substring(s, 2, 18) == "WAYPOINT_SYMMETRY ")
1133                                 {
1134                                         int tokens = tokenizebyseparator(substring(s, 20, -1), " ");
1135                                         if (tokens) { sym = stof(argv(0)); }
1136                                         if (tokens > 1) { sym_param1 = stof(argv(1)); }
1137                                         if (tokens > 2) { sym_param2 = stof(argv(2)); }
1138                                         if (tokens > 3) { sym_param3 = stof(argv(3)); }
1139                                 }
1140                                 continue;
1141                         }
1142                         else
1143                         {
1144                                 if(floor(ver) < floor(WAYPOINT_VERSION))
1145                                 {
1146                                         LOG_TRACE("waypoints for this map are outdated");
1147                                         LOG_TRACE("please update them in the editor");
1148                                 }
1149                                 parse_comments = false;
1150                         }
1151                 }
1152                 m1 = stov(s);
1153                 s = fgets(file);
1154                 if (!s)
1155                         break;
1156                 m2 = stov(s);
1157                 s = fgets(file);
1158                 if (!s)
1159                         break;
1160                 fl = stof(s);
1161                 waypoint_spawn(m1, m2, fl);
1162                 if (m1 == m2)
1163                         cwp = cwp + 1;
1164                 else
1165                         cwb = cwb + 1;
1166         }
1167         fclose(file);
1168         LOG_TRACE("loaded ", ftos(cwp), " waypoints and ", ftos(cwb), " wayboxes from maps/", mapname, ".waypoints");
1169
1170         if (autocvar_g_waypointeditor && autocvar_g_waypointeditor_symmetrical_allowload)
1171         {
1172                 cvar_set("g_waypointeditor_symmetrical", ftos(sym));
1173                 if (sym == 1 && sym_param3 < 2)
1174                         cvar_set("g_waypointeditor_symmetrical_order", "0"); // make sure this is reset if not loaded
1175                 if (sym == -1 || (sym == 1 && sym_param3 >= 2))
1176                 {
1177                         string params;
1178                         if (sym == 1)
1179                                 params = cons("-", "-");
1180                         else
1181                         {
1182                                 params = cons(ftos(sym_param1), ftos(sym_param2));
1183                                 cvar_set("g_waypointeditor_symmetrical_origin", params);
1184                         }
1185                         cvar_set("g_waypointeditor_symmetrical_order", ftos(sym_param3));
1186                         LOG_INFO("Waypoint editor: loaded symmetry ", ftos(sym), " with origin ", params, " and order ", ftos(sym_param3));
1187                 }
1188                 else if (sym == -2)
1189                 {
1190                         string params = strcat(ftos(sym_param1), " ", ftos(sym_param2));
1191                         cvar_set("g_waypointeditor_symmetrical_axis", params);
1192                         LOG_INFO("Waypoint editor: loaded symmetry ", ftos(sym), " with axis ", params);
1193                 }
1194                 else
1195                         LOG_INFO("Waypoint editor: loaded symmetry ", ftos(sym));
1196                 LOG_INFO(strcat("g_waypointeditor_symmetrical", " has been set to ", cvar_string("g_waypointeditor_symmetrical")));
1197         }
1198
1199         return cwp + cwb;
1200 }
1201
1202 #define waypoint_fixorigin(position, tracetest_ent) \
1203         waypoint_fixorigin_down_dir(position, tracetest_ent, '0 0 -1')
1204
1205 vector waypoint_fixorigin_down_dir(vector position, entity tracetest_ent, vector down_dir)
1206 {
1207         tracebox(position + '0 0 1', PL_MIN_CONST, PL_MAX_CONST, position + down_dir * 3000, MOVE_NOMONSTERS, tracetest_ent);
1208         if(trace_startsolid)
1209                 tracebox(position + '0 0 1' * (1 - PL_MIN_CONST.z / 2), PL_MIN_CONST, PL_MAX_CONST, position + down_dir * 3000, MOVE_NOMONSTERS, tracetest_ent);
1210         if(trace_startsolid)
1211                 tracebox(position + '0 0 1' * (1 - PL_MIN_CONST.z), PL_MIN_CONST, PL_MAX_CONST, position + down_dir * 3000, MOVE_NOMONSTERS, tracetest_ent);
1212         if(trace_fraction < 1)
1213                 position = trace_endpos;
1214         return position;
1215 }
1216
1217 void waypoint_spawnforitem_force(entity e, vector org)
1218 {
1219         // Fix the waypoint altitude if necessary
1220         org = waypoint_fixorigin(org, NULL);
1221
1222         // don't spawn an item spawnfunc_waypoint if it already exists
1223         IL_EACH(g_waypoints, true,
1224         {
1225                 if(it.wpisbox)
1226                 {
1227                         if(boxesoverlap(org, org, it.absmin, it.absmax))
1228                         {
1229                                 e.nearestwaypoint = it;
1230                                 return;
1231                         }
1232                 }
1233                 else
1234                 {
1235                         if(vdist(it.origin - org, <, 16))
1236                         {
1237                                 e.nearestwaypoint = it;
1238                                 return;
1239                         }
1240                 }
1241         });
1242
1243         e.nearestwaypoint = waypoint_spawn(org, org, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_ITEM);
1244 }
1245
1246 void waypoint_spawnforitem(entity e)
1247 {
1248         if(!bot_waypoints_for_items)
1249                 return;
1250
1251         waypoint_spawnforitem_force(e, e.origin);
1252 }
1253
1254 void waypoint_spawnforteleporter_boxes(entity e, int teleport_flag, vector org1, vector org2, vector destination1, vector destination2, float timetaken)
1255 {
1256         entity w;
1257         entity dw;
1258         w = waypoint_spawn(org1, org2, WAYPOINTFLAG_GENERATED | teleport_flag | WAYPOINTFLAG_NORELINK);
1259         dw = waypoint_spawn(destination1, destination2, WAYPOINTFLAG_GENERATED);
1260         // one way link to the destination
1261         w.wp00 = dw;
1262         w.wp00mincost = timetaken; // this is just for jump pads
1263         // the teleporter's nearest spawnfunc_waypoint is this one
1264         // (teleporters are not goals, so this is probably useless)
1265         e.nearestwaypoint = w;
1266         e.nearestwaypointtimeout = -1;
1267 }
1268
1269 void waypoint_spawnforteleporter_wz(entity e, vector org, vector destination, float timetaken, vector down_dir, entity tracetest_ent)
1270 {
1271         // warpzones with oblique warp plane rely on down_dir to snap waypoints
1272         // to the ground without leaving the warp plane
1273         // warpzones with horizontal warp plane (down_dir.x == -1) generate
1274         // destination waypoint snapped to the ground (leaving warpzone), source
1275         // waypoint in the center of the warp plane
1276         if(down_dir.x != -1)
1277                 org = waypoint_fixorigin_down_dir(org, tracetest_ent, down_dir);
1278         if(down_dir.x == -1)
1279                 down_dir = '0 0 -1';
1280         destination = waypoint_fixorigin_down_dir(destination, tracetest_ent, down_dir);
1281         waypoint_spawnforteleporter_boxes(e, WAYPOINTFLAG_TELEPORT, org, org, destination, destination, timetaken);
1282 }
1283
1284 void waypoint_spawnforteleporter(entity e, vector destination, float timetaken, entity tracetest_ent)
1285 {
1286         destination = waypoint_fixorigin(destination, tracetest_ent);
1287         waypoint_spawnforteleporter_boxes(e, WAYPOINTFLAG_TELEPORT, e.absmin - PL_MAX_CONST + '1 1 1', e.absmax - PL_MIN_CONST + '-1 -1 -1', destination, destination, timetaken);
1288 }
1289
1290 entity waypoint_spawnpersonal(entity this, vector position)
1291 {
1292         entity w;
1293
1294         // drop the waypoint to a proper location:
1295         //   first move it up by a player height
1296         //   then move it down to hit the floor with player bbox size
1297         position = waypoint_fixorigin(position, this);
1298
1299         w = waypoint_spawn(position, position, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_PERSONAL);
1300         w.nearestwaypoint = NULL;
1301         w.nearestwaypointtimeout = 0;
1302         w.owner = this;
1303
1304         waypoint_schedulerelink(w);
1305
1306         return w;
1307 }
1308
1309 void waypoint_showlink(entity wp1, entity wp2, int display_type)
1310 {
1311         if (!(wp1 && wp2))
1312                 return;
1313
1314         if (wp1.wphardwired && wp2.wphardwired)
1315                 te_beam(NULL, wp1.origin, wp2.origin);
1316         else if (display_type == 1)
1317                 te_lightning2(NULL, wp1.origin, wp2.origin);
1318 }
1319
1320 void waypoint_showlinks_to(entity wp, int display_type)
1321 {
1322         IL_EACH(g_waypoints, it != wp,
1323         {
1324                 if (waypoint_islinked(it, wp))
1325                         waypoint_showlink(it, wp, display_type);
1326         });
1327 }
1328
1329 void waypoint_showlinks_from(entity wp, int display_type)
1330 {
1331         waypoint_showlink(wp.wp00, wp, display_type); waypoint_showlink(wp.wp16, wp, display_type);
1332         waypoint_showlink(wp.wp01, wp, display_type); waypoint_showlink(wp.wp17, wp, display_type);
1333         waypoint_showlink(wp.wp02, wp, display_type); waypoint_showlink(wp.wp18, wp, display_type);
1334         waypoint_showlink(wp.wp03, wp, display_type); waypoint_showlink(wp.wp19, wp, display_type);
1335         waypoint_showlink(wp.wp04, wp, display_type); waypoint_showlink(wp.wp20, wp, display_type);
1336         waypoint_showlink(wp.wp05, wp, display_type); waypoint_showlink(wp.wp21, wp, display_type);
1337         waypoint_showlink(wp.wp06, wp, display_type); waypoint_showlink(wp.wp22, wp, display_type);
1338         waypoint_showlink(wp.wp07, wp, display_type); waypoint_showlink(wp.wp23, wp, display_type);
1339         waypoint_showlink(wp.wp08, wp, display_type); waypoint_showlink(wp.wp24, wp, display_type);
1340         waypoint_showlink(wp.wp09, wp, display_type); waypoint_showlink(wp.wp25, wp, display_type);
1341         waypoint_showlink(wp.wp10, wp, display_type); waypoint_showlink(wp.wp26, wp, display_type);
1342         waypoint_showlink(wp.wp11, wp, display_type); waypoint_showlink(wp.wp27, wp, display_type);
1343         waypoint_showlink(wp.wp12, wp, display_type); waypoint_showlink(wp.wp28, wp, display_type);
1344         waypoint_showlink(wp.wp13, wp, display_type); waypoint_showlink(wp.wp29, wp, display_type);
1345         waypoint_showlink(wp.wp14, wp, display_type); waypoint_showlink(wp.wp30, wp, display_type);
1346         waypoint_showlink(wp.wp15, wp, display_type); waypoint_showlink(wp.wp31, wp, display_type);
1347 }
1348
1349 void botframe_showwaypointlinks()
1350 {
1351         if (time < botframe_waypointeditorlightningtime)
1352                 return;
1353         botframe_waypointeditorlightningtime = time + 0.5;
1354         FOREACH_CLIENT(IS_PLAYER(it) && !it.isbot,
1355         {
1356                 int display_type = 0;
1357                 entity head = navigation_findnearestwaypoint(it, false);
1358                 it.nearestwaypoint = head; // mainly useful for debug
1359                 it.nearestwaypointtimeout = time + 2; // while I'm at it...
1360                 if (IS_ONGROUND(it) || it.waterlevel > WATERLEVEL_NONE)
1361                         display_type = 1; // default
1362                 else if(head && (head.wphardwired))
1363                         display_type = 2; // only hardwired
1364
1365                 if (display_type)
1366                 {
1367                         //navigation_testtracewalk = true;
1368                         //print("currently selected WP is ", etos(head), "\n");
1369                         //navigation_testtracewalk = false;
1370                         if (head)
1371                         {
1372                                 te_lightning2(NULL, head.origin, it.origin);
1373                                 if(PHYS_INPUT_BUTTON_CROUCH(it))
1374                                         waypoint_showlinks_to(head, display_type);
1375                                 else
1376                                         waypoint_showlinks_from(head, display_type);
1377                         }
1378                 }
1379         });
1380 }
1381
1382 float botframe_autowaypoints_fixdown(vector v)
1383 {
1384         tracebox(v, PL_MIN_CONST, PL_MAX_CONST, v + '0 0 -64', MOVE_NOMONSTERS, NULL);
1385         if(trace_fraction >= 1)
1386                 return 0;
1387         return 1;
1388 }
1389
1390 float botframe_autowaypoints_createwp(vector v, entity p, .entity fld, float f)
1391 {
1392         IL_EACH(g_waypoints, boxesoverlap(v - '32 32 32', v + '32 32 32', it.absmin, it.absmax),
1393         {
1394                 // if a matching spawnfunc_waypoint already exists, don't add a duplicate
1395                 return 0;
1396         });
1397
1398         waypoint_schedulerelink(p.(fld) = waypoint_spawn(v, v, f));
1399         return 1;
1400 }
1401
1402 // return value:
1403 //    1 = WP created
1404 //    0 = no action needed
1405 //   -1 = temp fail, try from world too
1406 //   -2 = permanent fail, do not retry
1407 float botframe_autowaypoints_fix_from(entity p, float walkfromwp, entity wp, .entity fld)
1408 {
1409         // make it possible to go from p to wp, if we can
1410         // if wp is NULL, nearest is chosen
1411
1412         entity w;
1413         vector porg;
1414         float t, tmin, tmax;
1415         vector o;
1416         vector save;
1417
1418         if(!botframe_autowaypoints_fixdown(p.origin))
1419                 return -2;
1420         porg = trace_endpos;
1421
1422         if(wp)
1423         {
1424                 // if any WP w fulfills wp -> w -> porg and w is closer than wp, then switch from wp to w
1425
1426                 // if wp -> porg, then OK
1427                 float maxdist;
1428                 if(navigation_waypoint_will_link(wp.origin, porg, p, porg, 0, wp.origin, 0, walkfromwp, 1050))
1429                 {
1430                         // we may find a better one
1431                         maxdist = vlen(wp.origin - porg);
1432                 }
1433                 else
1434                 {
1435                         // accept any "good"
1436                         maxdist = 2100;
1437                 }
1438
1439                 float bestdist = maxdist;
1440                 IL_EACH(g_waypoints, it != wp && !(it.wpflags & WAYPOINTFLAG_NORELINK),
1441                 {
1442                         float d = vlen(wp.origin - it.origin) + vlen(it.origin - porg);
1443                         if(d < bestdist)
1444                         if(navigation_waypoint_will_link(wp.origin, it.origin, p, it.origin, 0, wp.origin, 0, walkfromwp, 1050))
1445                         if(navigation_waypoint_will_link(it.origin, porg, p, porg, 0, it.origin, 0, walkfromwp, 1050))
1446                         {
1447                                 bestdist = d;
1448                                 p.(fld) = it;
1449                         }
1450                 });
1451                 if(bestdist < maxdist)
1452                 {
1453                         LOG_INFO("update chain to new nearest WP ", etos(p.(fld)));
1454                         return 0;
1455                 }
1456
1457                 if(bestdist < 2100)
1458                 {
1459                         // we know maxdist < 2100
1460                         // so wp -> porg is still valid
1461                         // all is good
1462                         p.(fld) = wp;
1463                         return 0;
1464                 }
1465
1466                 // otherwise, no existing WP can fix our issues
1467         }
1468         else
1469         {
1470                 save = p.origin;
1471                 setorigin(p, porg);
1472                 w = navigation_findnearestwaypoint(p, walkfromwp);
1473                 setorigin(p, save);
1474                 if(w)
1475                 {
1476                         p.(fld) = w;
1477                         return 0;
1478                 }
1479         }
1480
1481         tmin = 0;
1482         tmax = 1;
1483         for (;;)
1484         {
1485                 if(tmax - tmin < 0.001)
1486                 {
1487                         // did not get a good candidate
1488                         return -1;
1489                 }
1490
1491                 t = (tmin + tmax) * 0.5;
1492                 o = antilag_takebackorigin(p, CS(p), time - t);
1493                 if(!botframe_autowaypoints_fixdown(o))
1494                         return -2;
1495                 o = trace_endpos;
1496
1497                 if(wp)
1498                 {
1499                         if(!navigation_waypoint_will_link(wp.origin, o, p, o, 0, wp.origin, 0, walkfromwp, 1050))
1500                         {
1501                                 // we cannot walk from wp.origin to o
1502                                 // get closer to tmax
1503                                 tmin = t;
1504                                 continue;
1505                         }
1506                 }
1507                 else
1508                 {
1509                         save = p.origin;
1510                         setorigin(p, o);
1511                         w = navigation_findnearestwaypoint(p, walkfromwp);
1512                         setorigin(p, save);
1513                         if(!w)
1514                         {
1515                                 // we cannot walk from any WP to o
1516                                 // get closer to tmax
1517                                 tmin = t;
1518                                 continue;
1519                         }
1520                 }
1521
1522                 // if we get here, o is valid regarding waypoints
1523                 // check if o is connected right to the player
1524                 // we break if it succeeds, as that means o is a good waypoint location
1525                 if(navigation_waypoint_will_link(o, porg, p, porg, 0, o, 0, walkfromwp, 1050))
1526                         break;
1527
1528                 // o is no good, we need to get closer to the player
1529                 tmax = t;
1530         }
1531
1532         LOG_INFO("spawning a waypoint for connecting to ", etos(wp));
1533         botframe_autowaypoints_createwp(o, p, fld, 0);
1534         return 1;
1535 }
1536
1537 // automatically create missing waypoints
1538 .entity botframe_autowaypoints_lastwp0, botframe_autowaypoints_lastwp1;
1539 void botframe_autowaypoints_fix(entity p, float walkfromwp, .entity fld)
1540 {
1541         float r = botframe_autowaypoints_fix_from(p, walkfromwp, p.(fld), fld);
1542         if(r != -1)
1543                 return;
1544         r = botframe_autowaypoints_fix_from(p, walkfromwp, NULL, fld);
1545         if(r != -1)
1546                 return;
1547
1548         LOG_INFO("emergency: got no good nearby WP to build a link from, starting a new chain");
1549         if(!botframe_autowaypoints_fixdown(p.origin))
1550                 return; // shouldn't happen, caught above
1551         botframe_autowaypoints_createwp(trace_endpos, p, fld, WAYPOINTFLAG_PROTECTED);
1552 }
1553
1554 void botframe_deleteuselesswaypoints()
1555 {
1556         IL_EACH(g_items, it.bot_pickup,
1557         {
1558                 // NOTE: this protects waypoints if they're the ONLY nearest
1559                 // waypoint. That's the intention.
1560                 navigation_findnearestwaypoint(it, false);  // Walk TO item.
1561                 navigation_findnearestwaypoint(it, true);  // Walk FROM item.
1562         });
1563         IL_EACH(g_waypoints, true,
1564         {
1565                 it.wpflags |= WAYPOINTFLAG_DEAD_END;
1566                 it.wpflags &= ~WAYPOINTFLAG_USEFUL;
1567                 // WP is useful if:
1568                 if (it.wpflags & WAYPOINTFLAG_ITEM)
1569                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1570                 if (it.wpflags & WAYPOINTFLAG_TELEPORT)
1571                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1572                 if (it.wpflags & WAYPOINTFLAG_LADDER)
1573                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1574                 if (it.wpflags & WAYPOINTFLAG_PROTECTED)
1575                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1576                 // b) WP is closest WP for an item/spawnpoint/other entity
1577                 //    This has been done above by protecting these WPs.
1578         });
1579         // c) There are w1, w, w2 so that w1 -> w, w -> w2 and not w1 -> w2.
1580         IL_EACH(g_waypoints, !(it.wpflags & WAYPOINTFLAG_PERSONAL),
1581         {
1582                 for (int m = 0; m < 32; ++m)
1583                 {
1584                         entity w = waypoint_get_link(it, m);
1585                         if (!w)
1586                                 break;
1587                         if (w.wpflags & WAYPOINTFLAG_PERSONAL)
1588                                 continue;
1589                         if (w.wpflags & WAYPOINTFLAG_USEFUL)
1590                                 continue;
1591                         for (int j = 0; j < 32; ++j)
1592                         {
1593                                 entity w2 = waypoint_get_link(w, j);
1594                                 if (!w2)
1595                                         break;
1596                                 if (it == w2)
1597                                         continue;
1598                                 if (w2.wpflags & WAYPOINTFLAG_PERSONAL)
1599                                         continue;
1600                                 // If we got here, it != w2 exist with it -> w
1601                                 // and w -> w2. That means the waypoint is not
1602                                 // a dead end.
1603                                 w.wpflags &= ~WAYPOINTFLAG_DEAD_END;
1604                                 for (int k = 0; k < 32; ++k)
1605                                 {
1606                                         if (waypoint_get_link(it, k) == w2)
1607                                                 continue;
1608                                         // IF WE GET HERE, w is proven useful
1609                                         // to get from it to w2!
1610                                         w.wpflags |= WAYPOINTFLAG_USEFUL;
1611                                         goto next;
1612                                 }
1613                         }
1614 LABEL(next)
1615                 }
1616         });
1617         // d) The waypoint is a dead end. Dead end waypoints must be kept as
1618         //     they are needed to complete routes while autowaypointing.
1619
1620         IL_EACH(g_waypoints, !(it.wpflags & (WAYPOINTFLAG_USEFUL | WAYPOINTFLAG_DEAD_END)),
1621         {
1622                 LOG_INFOF("Removed a waypoint at %v. Try again for more!", it.origin);
1623                 te_explosion(it.origin);
1624                 waypoint_remove(it);
1625                 break;
1626         });
1627
1628         IL_EACH(g_waypoints, true,
1629         {
1630                 it.wpflags &= ~(WAYPOINTFLAG_USEFUL | WAYPOINTFLAG_DEAD_END); // temp flag
1631         });
1632 }
1633
1634 void botframe_autowaypoints()
1635 {
1636         FOREACH_CLIENT(IS_PLAYER(it) && IS_REAL_CLIENT(it) && !IS_DEAD(it), {
1637                 // going back is broken, so only fix waypoints to walk TO the player
1638                 //botframe_autowaypoints_fix(p, false, botframe_autowaypoints_lastwp0);
1639                 botframe_autowaypoints_fix(it, true, botframe_autowaypoints_lastwp1);
1640                 //te_explosion(p.botframe_autowaypoints_lastwp0.origin);
1641         });
1642
1643         if (autocvar_g_waypointeditor_auto >= 2) {
1644                 botframe_deleteuselesswaypoints();
1645         }
1646 }
1647