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_getSymmetricalPoint(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_symmetry_axis_m;
 145                 float q = havocbot_symmetry_axis_q;
 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_symmetry_origin_order;
 250         bool sym = ((autocvar_g_waypointeditor_symmetrical > 0 && ctf_flags >= 2)
 251                    || (autocvar_g_waypointeditor_symmetrical < 0));
 252         if(autocvar_g_waypointeditor_symmetrical_order >= 2)
 253                 ctf_flags = autocvar_g_waypointeditor_symmetrical_order;
 254         if (sym && ctf_flags < 2)
 255                 ctf_flags = 2;
 256         int wp_num = ctf_flags;
 257
 258         if(!PHYS_INPUT_BUTTON_CROUCH(pl))
 259         {
 260                 // snap waypoint to item's origin if close enough
 261                 IL_EACH(g_items, true,
 262                 {
 263                         vector item_org = (it.absmin + it.absmax) * 0.5;
 264                         item_org.z = it.absmin.z - PL_MIN_CONST.z;
 265                         if (vlen(item_org - org) < 20)
 266                         {
 267                                 org = item_org;
 268                                 break;
 269                         }
 270                 });
 271         }
 272
 273         LABEL(add_wp);
 274         e = waypoint_spawn(org, org, 0);
 275         if(!e)
 276         {
 277                 LOG_INFOF("Couldn't spawn waypoint at %v\n", org);
 278                 return;
 279         }
 280         waypoint_schedulerelink(e);
 281         bprint(strcat("Waypoint spawned at ", vtos(e.origin), "\n"));
 282         if(sym)
 283         {
 284                 org = waypoint_getSymmetricalPoint(e.origin, ctf_flags);
 285                 if (vdist(org - pl.origin, >, 32))
 286                 {
 287                         if(wp_num > 2)
 288                                 wp_num--;
 289                         else
 290                                 sym = false;
 291                         goto add_wp;
 292                 }
 293         }
 294 }
 295
 296 void waypoint_remove(entity wp)
 297 {
 298         IL_EACH(g_waypoints, it != wp,
 299         {
 300                 if (waypoint_islinked(it, wp))
 301                         waypoint_removelink(it, wp);
 302         });
 303         delete(wp);
 304 }
 305
 306 void waypoint_remove_fromeditor(entity pl)
 307 {
 308         entity e = navigation_findnearestwaypoint(pl, false);
 309
 310         int ctf_flags = havocbot_symmetry_origin_order;
 311         bool sym = ((autocvar_g_waypointeditor_symmetrical > 0 && ctf_flags >= 2)
 312                    || (autocvar_g_waypointeditor_symmetrical < 0));
 313         if(autocvar_g_waypointeditor_symmetrical_order >= 2)
 314                 ctf_flags = autocvar_g_waypointeditor_symmetrical_order;
 315         if (sym && ctf_flags < 2)
 316                 ctf_flags = 2;
 317         int wp_num = ctf_flags;
 318
 319         LABEL(remove_wp);
 320         if (!e) return;
 321         if (e.wpflags & WAYPOINTFLAG_GENERATED) return;
 322
 323         if (e.wphardwired)
 324         {
 325                 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");
 326                 return;
 327         }
 328
 329         entity wp_sym = NULL;
 330         if (sym)
 331         {
 332                 vector org = waypoint_getSymmetricalPoint(e.origin, ctf_flags);
 333                 FOREACH_ENTITY_CLASS("waypoint", !(it.wpflags & WAYPOINTFLAG_GENERATED), {
 334                         if(vdist(org - it.origin, <, 3))
 335                         {
 336                                 wp_sym = it;
 337                                 break;
 338                         }
 339                 });
 340         }
 341
 342         bprint(strcat("Waypoint removed at ", vtos(e.origin), "\n"));
 343         waypoint_remove(e);
 344
 345         if (sym && wp_sym)
 346         {
 347                 e = wp_sym;
 348                 if(wp_num > 2)
 349                         wp_num--;
 350                 else
 351                         sym = false;
 352                 goto remove_wp;
 353         }
 354 }
 355
 356 void waypoint_removelink(entity from, entity to)
 357 {
 358         if (from == to || (from.wpflags & WAYPOINTFLAG_NORELINK))
 359                 return;
 360
 361         bool found = false;
 362         if (!found && from.wp00 == to) found = true; if (found) {from.wp00 = from.wp01; from.wp00mincost = from.wp01mincost;}
 363         if (!found && from.wp01 == to) found = true; if (found) {from.wp01 = from.wp02; from.wp01mincost = from.wp02mincost;}
 364         if (!found && from.wp02 == to) found = true; if (found) {from.wp02 = from.wp03; from.wp02mincost = from.wp03mincost;}
 365         if (!found && from.wp03 == to) found = true; if (found) {from.wp03 = from.wp04; from.wp03mincost = from.wp04mincost;}
 366         if (!found && from.wp04 == to) found = true; if (found) {from.wp04 = from.wp05; from.wp04mincost = from.wp05mincost;}
 367         if (!found && from.wp05 == to) found = true; if (found) {from.wp05 = from.wp06; from.wp05mincost = from.wp06mincost;}
 368         if (!found && from.wp06 == to) found = true; if (found) {from.wp06 = from.wp07; from.wp06mincost = from.wp07mincost;}
 369         if (!found && from.wp07 == to) found = true; if (found) {from.wp07 = from.wp08; from.wp07mincost = from.wp08mincost;}
 370         if (!found && from.wp08 == to) found = true; if (found) {from.wp08 = from.wp09; from.wp08mincost = from.wp09mincost;}
 371         if (!found && from.wp09 == to) found = true; if (found) {from.wp09 = from.wp10; from.wp09mincost = from.wp10mincost;}
 372         if (!found && from.wp10 == to) found = true; if (found) {from.wp10 = from.wp11; from.wp10mincost = from.wp11mincost;}
 373         if (!found && from.wp11 == to) found = true; if (found) {from.wp11 = from.wp12; from.wp11mincost = from.wp12mincost;}
 374         if (!found && from.wp12 == to) found = true; if (found) {from.wp12 = from.wp13; from.wp12mincost = from.wp13mincost;}
 375         if (!found && from.wp13 == to) found = true; if (found) {from.wp13 = from.wp14; from.wp13mincost = from.wp14mincost;}
 376         if (!found && from.wp14 == to) found = true; if (found) {from.wp14 = from.wp15; from.wp14mincost = from.wp15mincost;}
 377         if (!found && from.wp15 == to) found = true; if (found) {from.wp15 = from.wp16; from.wp15mincost = from.wp16mincost;}
 378         if (!found && from.wp16 == to) found = true; if (found) {from.wp16 = from.wp17; from.wp16mincost = from.wp17mincost;}
 379         if (!found && from.wp17 == to) found = true; if (found) {from.wp17 = from.wp18; from.wp17mincost = from.wp18mincost;}
 380         if (!found && from.wp18 == to) found = true; if (found) {from.wp18 = from.wp19; from.wp18mincost = from.wp19mincost;}
 381         if (!found && from.wp19 == to) found = true; if (found) {from.wp19 = from.wp20; from.wp19mincost = from.wp20mincost;}
 382         if (!found && from.wp20 == to) found = true; if (found) {from.wp20 = from.wp21; from.wp20mincost = from.wp21mincost;}
 383         if (!found && from.wp21 == to) found = true; if (found) {from.wp21 = from.wp22; from.wp21mincost = from.wp22mincost;}
 384         if (!found && from.wp22 == to) found = true; if (found) {from.wp22 = from.wp23; from.wp22mincost = from.wp23mincost;}
 385         if (!found && from.wp23 == to) found = true; if (found) {from.wp23 = from.wp24; from.wp23mincost = from.wp24mincost;}
 386         if (!found && from.wp24 == to) found = true; if (found) {from.wp24 = from.wp25; from.wp24mincost = from.wp25mincost;}
 387         if (!found && from.wp25 == to) found = true; if (found) {from.wp25 = from.wp26; from.wp25mincost = from.wp26mincost;}
 388         if (!found && from.wp26 == to) found = true; if (found) {from.wp26 = from.wp27; from.wp26mincost = from.wp27mincost;}
 389         if (!found && from.wp27 == to) found = true; if (found) {from.wp27 = from.wp28; from.wp27mincost = from.wp28mincost;}
 390         if (!found && from.wp28 == to) found = true; if (found) {from.wp28 = from.wp29; from.wp28mincost = from.wp29mincost;}
 391         if (!found && from.wp29 == to) found = true; if (found) {from.wp29 = from.wp30; from.wp29mincost = from.wp30mincost;}
 392         if (!found && from.wp30 == to) found = true; if (found) {from.wp30 = from.wp31; from.wp30mincost = from.wp31mincost;}
 393         if (found) {from.wp31 = NULL; from.wp31mincost = 10000000;}
 394 }
 395
 396 bool waypoint_islinked(entity from, entity to)
 397 {
 398         if (from.wp00 == to) return true;if (from.wp01 == to) return true;if (from.wp02 == to) return true;if (from.wp03 == to) return true;
 399         if (from.wp04 == to) return true;if (from.wp05 == to) return true;if (from.wp06 == to) return true;if (from.wp07 == to) return true;
 400         if (from.wp08 == to) return true;if (from.wp09 == to) return true;if (from.wp10 == to) return true;if (from.wp11 == to) return true;
 401         if (from.wp12 == to) return true;if (from.wp13 == to) return true;if (from.wp14 == to) return true;if (from.wp15 == to) return true;
 402         if (from.wp16 == to) return true;if (from.wp17 == to) return true;if (from.wp18 == to) return true;if (from.wp19 == to) return true;
 403         if (from.wp20 == to) return true;if (from.wp21 == to) return true;if (from.wp22 == to) return true;if (from.wp23 == to) return true;
 404         if (from.wp24 == to) return true;if (from.wp25 == to) return true;if (from.wp26 == to) return true;if (from.wp27 == to) return true;
 405         if (from.wp28 == to) return true;if (from.wp29 == to) return true;if (from.wp30 == to) return true;if (from.wp31 == to) return true;
 406         return false;
 407 }
 408
 409 void waypoint_updatecost_foralllinks()
 410 {
 411         IL_EACH(g_waypoints, !(it.wpflags & WAYPOINTFLAG_TELEPORT),
 412         {
 413                 if(it.wp00) it.wp00mincost = waypoint_getlinkcost(it, it.wp00);
 414                 if(it.wp01) it.wp01mincost = waypoint_getlinkcost(it, it.wp01);
 415                 if(it.wp02) it.wp02mincost = waypoint_getlinkcost(it, it.wp02);
 416                 if(it.wp03) it.wp03mincost = waypoint_getlinkcost(it, it.wp03);
 417                 if(it.wp04) it.wp04mincost = waypoint_getlinkcost(it, it.wp04);
 418                 if(it.wp05) it.wp05mincost = waypoint_getlinkcost(it, it.wp05);
 419                 if(it.wp06) it.wp06mincost = waypoint_getlinkcost(it, it.wp06);
 420                 if(it.wp07) it.wp07mincost = waypoint_getlinkcost(it, it.wp07);
 421                 if(it.wp08) it.wp08mincost = waypoint_getlinkcost(it, it.wp08);
 422                 if(it.wp09) it.wp09mincost = waypoint_getlinkcost(it, it.wp09);
 423                 if(it.wp10) it.wp10mincost = waypoint_getlinkcost(it, it.wp10);
 424                 if(it.wp11) it.wp11mincost = waypoint_getlinkcost(it, it.wp11);
 425                 if(it.wp12) it.wp12mincost = waypoint_getlinkcost(it, it.wp12);
 426                 if(it.wp13) it.wp13mincost = waypoint_getlinkcost(it, it.wp13);
 427                 if(it.wp14) it.wp14mincost = waypoint_getlinkcost(it, it.wp14);
 428                 if(it.wp15) it.wp15mincost = waypoint_getlinkcost(it, it.wp15);
 429                 if(it.wp16) it.wp16mincost = waypoint_getlinkcost(it, it.wp16);
 430                 if(it.wp17) it.wp17mincost = waypoint_getlinkcost(it, it.wp17);
 431                 if(it.wp18) it.wp18mincost = waypoint_getlinkcost(it, it.wp18);
 432                 if(it.wp19) it.wp19mincost = waypoint_getlinkcost(it, it.wp19);
 433                 if(it.wp20) it.wp20mincost = waypoint_getlinkcost(it, it.wp20);
 434                 if(it.wp21) it.wp21mincost = waypoint_getlinkcost(it, it.wp21);
 435                 if(it.wp22) it.wp22mincost = waypoint_getlinkcost(it, it.wp22);
 436                 if(it.wp23) it.wp23mincost = waypoint_getlinkcost(it, it.wp23);
 437                 if(it.wp24) it.wp24mincost = waypoint_getlinkcost(it, it.wp24);
 438                 if(it.wp25) it.wp25mincost = waypoint_getlinkcost(it, it.wp25);
 439                 if(it.wp26) it.wp26mincost = waypoint_getlinkcost(it, it.wp26);
 440                 if(it.wp27) it.wp27mincost = waypoint_getlinkcost(it, it.wp27);
 441                 if(it.wp28) it.wp28mincost = waypoint_getlinkcost(it, it.wp28);
 442                 if(it.wp29) it.wp29mincost = waypoint_getlinkcost(it, it.wp29);
 443                 if(it.wp30) it.wp30mincost = waypoint_getlinkcost(it, it.wp30);
 444                 if(it.wp31) it.wp31mincost = waypoint_getlinkcost(it, it.wp31);
 445         });
 446 }
 447
 448 float waypoint_getlinearcost(float dist)
 449 {
 450         if(skill >= autocvar_bot_ai_bunnyhop_skilloffset)
 451                 return dist / (autocvar_sv_maxspeed * 1.25);
 452         return dist / autocvar_sv_maxspeed;
 453 }
 454 float waypoint_getlinearcost_underwater(float dist)
 455 {
 456         // NOTE: underwater speed factor is hardcoded in the engine too, see SV_WaterMove
 457         return dist / (autocvar_sv_maxspeed * 0.7);
 458 }
 459
 460 float waypoint_gettravelcost(vector from, vector to, entity from_ent, entity to_ent)
 461 {
 462         bool submerged_from = navigation_check_submerged_state(from_ent, from);
 463         bool submerged_to = navigation_check_submerged_state(to_ent, to);
 464
 465         if (submerged_from && submerged_to)
 466                 return waypoint_getlinearcost_underwater(vlen(to - from));
 467
 468         float c = waypoint_getlinearcost(vlen(to - from));
 469
 470         float height = from.z - to.z;
 471         if(height > jumpheight_vec.z && autocvar_sv_gravity > 0)
 472         {
 473                 float height_cost = sqrt(height / (autocvar_sv_gravity / 2));
 474                 c = waypoint_getlinearcost(vlen(vec2(to - from))); // xy distance cost
 475                 if(height_cost > c)
 476                         c = height_cost;
 477         }
 478
 479         if (submerged_from || submerged_to)
 480                 return (c + waypoint_getlinearcost_underwater(vlen(to - from))) / 2;
 481         return c;
 482 }
 483
 484 float waypoint_getlinkcost(entity from, entity to)
 485 {
 486         vector v1 = from.origin;
 487         vector v2 = to.origin;
 488         if (from.wpisbox)
 489         {
 490                 vector m1 = from.absmin, m2 = from.absmax;
 491                 v1.x = bound(m1.x, v2.x, m2.x);
 492                 v1.y = bound(m1.y, v2.y, m2.y);
 493                 v1.z = bound(m1.z, v2.z, m2.z);
 494         }
 495         if (to.wpisbox)
 496         {
 497                 vector m1 = to.absmin, m2 = to.absmax;
 498                 v2.x = bound(m1.x, v1.x, m2.x);
 499                 v2.y = bound(m1.y, v1.y, m2.y);
 500                 v2.z = bound(m1.z, v1.z, m2.z);
 501         }
 502         return waypoint_gettravelcost(v1, v2, from, to);
 503 }
 504
 505 // add a new link to the spawnfunc_waypoint, replacing the furthest link it already has
 506 // if c == -1 automatically determine cost of the link
 507 void waypoint_addlink_customcost(entity from, entity to, float c)
 508 {
 509         if (from == to || waypoint_islinked(from, to))
 510                 return;
 511         if (c == -1 && (from.wpflags & WAYPOINTFLAG_NORELINK))
 512                 return;
 513
 514         if(c == -1)
 515                 c = waypoint_getlinkcost(from, to);
 516
 517         if (from.wp31mincost < c) return;
 518         if (from.wp30mincost < c) {from.wp31 = to;from.wp31mincost = c;return;} from.wp31 = from.wp30;from.wp31mincost = from.wp30mincost;
 519         if (from.wp29mincost < c) {from.wp30 = to;from.wp30mincost = c;return;} from.wp30 = from.wp29;from.wp30mincost = from.wp29mincost;
 520         if (from.wp28mincost < c) {from.wp29 = to;from.wp29mincost = c;return;} from.wp29 = from.wp28;from.wp29mincost = from.wp28mincost;
 521         if (from.wp27mincost < c) {from.wp28 = to;from.wp28mincost = c;return;} from.wp28 = from.wp27;from.wp28mincost = from.wp27mincost;
 522         if (from.wp26mincost < c) {from.wp27 = to;from.wp27mincost = c;return;} from.wp27 = from.wp26;from.wp27mincost = from.wp26mincost;
 523         if (from.wp25mincost < c) {from.wp26 = to;from.wp26mincost = c;return;} from.wp26 = from.wp25;from.wp26mincost = from.wp25mincost;
 524         if (from.wp24mincost < c) {from.wp25 = to;from.wp25mincost = c;return;} from.wp25 = from.wp24;from.wp25mincost = from.wp24mincost;
 525         if (from.wp23mincost < c) {from.wp24 = to;from.wp24mincost = c;return;} from.wp24 = from.wp23;from.wp24mincost = from.wp23mincost;
 526         if (from.wp22mincost < c) {from.wp23 = to;from.wp23mincost = c;return;} from.wp23 = from.wp22;from.wp23mincost = from.wp22mincost;
 527         if (from.wp21mincost < c) {from.wp22 = to;from.wp22mincost = c;return;} from.wp22 = from.wp21;from.wp22mincost = from.wp21mincost;
 528         if (from.wp20mincost < c) {from.wp21 = to;from.wp21mincost = c;return;} from.wp21 = from.wp20;from.wp21mincost = from.wp20mincost;
 529         if (from.wp19mincost < c) {from.wp20 = to;from.wp20mincost = c;return;} from.wp20 = from.wp19;from.wp20mincost = from.wp19mincost;
 530         if (from.wp18mincost < c) {from.wp19 = to;from.wp19mincost = c;return;} from.wp19 = from.wp18;from.wp19mincost = from.wp18mincost;
 531         if (from.wp17mincost < c) {from.wp18 = to;from.wp18mincost = c;return;} from.wp18 = from.wp17;from.wp18mincost = from.wp17mincost;
 532         if (from.wp16mincost < c) {from.wp17 = to;from.wp17mincost = c;return;} from.wp17 = from.wp16;from.wp17mincost = from.wp16mincost;
 533         if (from.wp15mincost < c) {from.wp16 = to;from.wp16mincost = c;return;} from.wp16 = from.wp15;from.wp16mincost = from.wp15mincost;
 534         if (from.wp14mincost < c) {from.wp15 = to;from.wp15mincost = c;return;} from.wp15 = from.wp14;from.wp15mincost = from.wp14mincost;
 535         if (from.wp13mincost < c) {from.wp14 = to;from.wp14mincost = c;return;} from.wp14 = from.wp13;from.wp14mincost = from.wp13mincost;
 536         if (from.wp12mincost < c) {from.wp13 = to;from.wp13mincost = c;return;} from.wp13 = from.wp12;from.wp13mincost = from.wp12mincost;
 537         if (from.wp11mincost < c) {from.wp12 = to;from.wp12mincost = c;return;} from.wp12 = from.wp11;from.wp12mincost = from.wp11mincost;
 538         if (from.wp10mincost < c) {from.wp11 = to;from.wp11mincost = c;return;} from.wp11 = from.wp10;from.wp11mincost = from.wp10mincost;
 539         if (from.wp09mincost < c) {from.wp10 = to;from.wp10mincost = c;return;} from.wp10 = from.wp09;from.wp10mincost = from.wp09mincost;
 540         if (from.wp08mincost < c) {from.wp09 = to;from.wp09mincost = c;return;} from.wp09 = from.wp08;from.wp09mincost = from.wp08mincost;
 541         if (from.wp07mincost < c) {from.wp08 = to;from.wp08mincost = c;return;} from.wp08 = from.wp07;from.wp08mincost = from.wp07mincost;
 542         if (from.wp06mincost < c) {from.wp07 = to;from.wp07mincost = c;return;} from.wp07 = from.wp06;from.wp07mincost = from.wp06mincost;
 543         if (from.wp05mincost < c) {from.wp06 = to;from.wp06mincost = c;return;} from.wp06 = from.wp05;from.wp06mincost = from.wp05mincost;
 544         if (from.wp04mincost < c) {from.wp05 = to;from.wp05mincost = c;return;} from.wp05 = from.wp04;from.wp05mincost = from.wp04mincost;
 545         if (from.wp03mincost < c) {from.wp04 = to;from.wp04mincost = c;return;} from.wp04 = from.wp03;from.wp04mincost = from.wp03mincost;
 546         if (from.wp02mincost < c) {from.wp03 = to;from.wp03mincost = c;return;} from.wp03 = from.wp02;from.wp03mincost = from.wp02mincost;
 547         if (from.wp01mincost < c) {from.wp02 = to;from.wp02mincost = c;return;} from.wp02 = from.wp01;from.wp02mincost = from.wp01mincost;
 548         if (from.wp00mincost < c) {from.wp01 = to;from.wp01mincost = c;return;} from.wp01 = from.wp00;from.wp01mincost = from.wp00mincost;
 549         from.wp00 = to;from.wp00mincost = c;return;
 550 }
 551
 552 void waypoint_addlink(entity from, entity to)
 553 {
 554         waypoint_addlink_customcost(from, to, -1);
 555 }
 556
 557 // relink this spawnfunc_waypoint
 558 // (precompile a list of all reachable waypoints from this spawnfunc_waypoint)
 559 // (SLOW!)
 560 void waypoint_think(entity this)
 561 {
 562         vector sv = '0 0 0', sv2 = '0 0 0', ev = '0 0 0', ev2 = '0 0 0', dv;
 563         float sv2_height = 0, ev2_height = 0;
 564
 565         bot_calculate_stepheightvec();
 566
 567         int dphitcontentsmask_save = this.dphitcontentsmask;
 568         this.dphitcontentsmask = DPCONTENTS_SOLID | DPCONTENTS_BODY | DPCONTENTS_PLAYERCLIP | DPCONTENTS_BOTCLIP;
 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(this, 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         this.dphitcontentsmask = dphitcontentsmask_save;
 632 }
 633
 634 void waypoint_clearlinks(entity wp)
 635 {
 636         // clear links to other waypoints
 637         float f = 10000000;
 638         wp.wp00 = wp.wp01 = wp.wp02 = wp.wp03 = wp.wp04 = wp.wp05 = wp.wp06 = wp.wp07 = NULL;
 639         wp.wp08 = wp.wp09 = wp.wp10 = wp.wp11 = wp.wp12 = wp.wp13 = wp.wp14 = wp.wp15 = NULL;
 640         wp.wp16 = wp.wp17 = wp.wp18 = wp.wp19 = wp.wp20 = wp.wp21 = wp.wp22 = wp.wp23 = NULL;
 641         wp.wp24 = wp.wp25 = wp.wp26 = wp.wp27 = wp.wp28 = wp.wp29 = wp.wp30 = wp.wp31 = NULL;
 642
 643         wp.wp00mincost = wp.wp01mincost = wp.wp02mincost = wp.wp03mincost = wp.wp04mincost = wp.wp05mincost = wp.wp06mincost = wp.wp07mincost = f;
 644         wp.wp08mincost = wp.wp09mincost = wp.wp10mincost = wp.wp11mincost = wp.wp12mincost = wp.wp13mincost = wp.wp14mincost = wp.wp15mincost = f;
 645         wp.wp16mincost = wp.wp17mincost = wp.wp18mincost = wp.wp19mincost = wp.wp20mincost = wp.wp21mincost = wp.wp22mincost = wp.wp23mincost = f;
 646         wp.wp24mincost = wp.wp25mincost = wp.wp26mincost = wp.wp27mincost = wp.wp28mincost = wp.wp29mincost = wp.wp30mincost = wp.wp31mincost = f;
 647
 648         wp.wplinked = false;
 649 }
 650
 651 // tell a spawnfunc_waypoint to relink
 652 void waypoint_schedulerelink(entity wp)
 653 {
 654         if (wp == NULL)
 655                 return;
 656
 657         waypoint_setupmodel(wp);
 658         wp.wpisbox = vdist(wp.size, >, 0);
 659         wp.enemy = NULL;
 660         if (!(wp.wpflags & WAYPOINTFLAG_PERSONAL))
 661                 wp.owner = NULL;
 662         if (!(wp.wpflags & WAYPOINTFLAG_NORELINK))
 663                 waypoint_clearlinks(wp);
 664         // schedule an actual relink on next frame
 665         setthink(wp, waypoint_think);
 666         wp.nextthink = time;
 667         wp.effects = EF_LOWPRECISION;
 668 }
 669
 670 // spawnfunc_waypoint map entity
 671 spawnfunc(waypoint)
 672 {
 673         IL_PUSH(g_waypoints, this);
 674
 675         setorigin(this, this.origin);
 676         // schedule a relink after other waypoints have had a chance to spawn
 677         waypoint_clearlinks(this);
 678         //waypoint_schedulerelink(this);
 679 }
 680
 681 // tell all waypoints to relink
 682 // actually this is useful only to update relink_* stats
 683 void waypoint_schedulerelinkall()
 684 {
 685         relink_total = relink_walkculled = relink_pvsculled = relink_lengthculled = 0;
 686         IL_EACH(g_waypoints, true,
 687         {
 688                 waypoint_schedulerelink(it);
 689         });
 690         waypoint_load_links_hardwired();
 691 }
 692
 693 #define GET_GAMETYPE_EXTENSION() ((g_race) ? ".race" : "")
 694
 695 // Load waypoint links from file
 696 bool waypoint_load_links()
 697 {
 698         string s;
 699         float file, tokens, c = 0, found;
 700         entity wp_from = NULL, wp_to;
 701         vector wp_to_pos, wp_from_pos;
 702
 703         string gt_ext = GET_GAMETYPE_EXTENSION();
 704
 705         string filename = sprintf("maps/%s.waypoints.cache", strcat(mapname, gt_ext));
 706         file = fopen(filename, FILE_READ);
 707
 708         if (gt_ext != "" && file < 0)
 709         {
 710                 // if race waypoint file doesn't exist load the default one
 711                 filename = sprintf("maps/%s.waypoints.cache", mapname);
 712                 file = fopen(filename, FILE_READ);
 713         }
 714
 715         if (file < 0)
 716         {
 717                 LOG_TRACE("waypoint links load from ", filename, " failed");
 718                 waypoint_schedulerelinkall();
 719                 return false;
 720         }
 721
 722         bool parse_comments = true;
 723         float ver = 0;
 724         string links_time = string_null;
 725
 726         while ((s = fgets(file)))
 727         {
 728                 if(parse_comments)
 729                 {
 730                         if(substring(s, 0, 2) == "//")
 731                         {
 732                                 if(substring(s, 2, 17) == "WAYPOINT_VERSION ")
 733                                         ver = stof(substring(s, 19, -1));
 734                                 else if(substring(s, 2, 14) == "WAYPOINT_TIME ")
 735                                         links_time = substring(s, 16, -1);
 736                                 continue;
 737                         }
 738                         else
 739                         {
 740                                 if(ver < WAYPOINT_VERSION || links_time != waypoint_time)
 741                                 {
 742                                         if (links_time != waypoint_time)
 743                                                 LOG_TRACE("waypoint links for this map are not made for these waypoints.");
 744                                         else
 745                                                 LOG_TRACE("waypoint links for this map are outdated.");
 746                                         if (g_assault)
 747                                         {
 748                                                 LOG_TRACE("Assault waypoint links need to be manually updated in the editor");
 749                                         }
 750                                         else
 751                                         {
 752                                                 LOG_TRACE("automatically updating...");
 753                                                 waypoint_schedulerelinkall();
 754                                                 fclose(file);
 755                                                 return false;
 756                                         }
 757                                 }
 758                                 parse_comments = false;
 759                         }
 760                 }
 761
 762                 tokens = tokenizebyseparator(s, "*");
 763
 764                 if (tokens!=2)
 765                 {
 766                         // bad file format
 767                         fclose(file);
 768                         waypoint_schedulerelinkall(); // link all the autogenerated waypoints (teleporters)
 769                         return false;
 770                 }
 771
 772                 wp_from_pos     = stov(argv(0));
 773                 wp_to_pos       = stov(argv(1));
 774
 775                 // Search "from" waypoint
 776                 if(!wp_from || wp_from.origin!=wp_from_pos)
 777                 {
 778                         wp_from = findradius(wp_from_pos, 1);
 779                         found = false;
 780                         while(wp_from)
 781                         {
 782                                 if(vdist(wp_from.origin - wp_from_pos, <, 1))
 783                                 if(wp_from.classname == "waypoint")
 784                                 {
 785                                         found = true;
 786                                         break;
 787                                 }
 788                                 wp_from = wp_from.chain;
 789                         }
 790
 791                         if(!found)
 792                         {
 793                                 LOG_TRACE("waypoint_load_links: couldn't find 'from' waypoint at ", vtos(wp_from_pos));
 794                                 continue;
 795                         }
 796                 }
 797
 798                 // Search "to" waypoint
 799                 wp_to = findradius(wp_to_pos, 1);
 800                 found = false;
 801                 while(wp_to)
 802                 {
 803                         if(vdist(wp_to.origin - wp_to_pos, <, 1))
 804                         if(wp_to.classname == "waypoint")
 805                         {
 806                                 found = true;
 807                                 break;
 808                         }
 809                         wp_to = wp_to.chain;
 810                 }
 811
 812                 if(!found)
 813                 {
 814                         LOG_TRACE("waypoint_load_links: couldn't find 'to' waypoint at ", vtos(wp_to_pos));
 815                         continue;
 816                 }
 817
 818                 ++c;
 819                 waypoint_addlink(wp_from, wp_to);
 820         }
 821
 822         fclose(file);
 823
 824         LOG_TRACE("loaded ", ftos(c), " waypoint links from ", filename);
 825
 826         bool scheduled = false;
 827         IL_EACH(g_waypoints, it.wpflags & WAYPOINTFLAG_ITEM,
 828         {
 829                 if (!it.wp00)
 830                 {
 831                         waypoint_schedulerelink(it);
 832                         scheduled = true;
 833                 }
 834         });
 835         if (scheduled)
 836                 return false;
 837
 838         botframe_cachedwaypointlinks = true;
 839         return true;
 840 }
 841
 842 void waypoint_load_or_remove_links_hardwired(bool removal_mode)
 843 {
 844         string s;
 845         float file, tokens, c = 0, found;
 846         entity wp_from = NULL, wp_to;
 847         vector wp_to_pos, wp_from_pos;
 848
 849         string gt_ext = GET_GAMETYPE_EXTENSION();
 850
 851         string filename = sprintf("maps/%s.waypoints.hardwired", strcat(mapname, gt_ext));
 852         file = fopen(filename, FILE_READ);
 853
 854         if (gt_ext != "" && file < 0)
 855         {
 856                 // if race waypoint file doesn't exist load the default one
 857                 filename = sprintf("maps/%s.waypoints.hardwired", mapname);
 858                 file = fopen(filename, FILE_READ);
 859         }
 860
 861         botframe_loadedforcedlinks = true;
 862
 863         if (file < 0)
 864         {
 865                 if(!removal_mode)
 866                         LOG_TRACE("waypoint links load from ", filename, " failed");
 867                 return;
 868         }
 869
 870         while ((s = fgets(file)))
 871         {
 872                 if(substring(s, 0, 2)=="//")
 873                         continue;
 874
 875                 if(substring(s, 0, 1)=="#")
 876                         continue;
 877
 878                 tokens = tokenizebyseparator(s, "*");
 879
 880                 if (tokens!=2)
 881                         continue;
 882
 883                 wp_from_pos     = stov(argv(0));
 884                 wp_to_pos       = stov(argv(1));
 885
 886                 // Search "from" waypoint
 887                 if(!wp_from || wp_from.origin!=wp_from_pos)
 888                 {
 889                         wp_from = findradius(wp_from_pos, 5);
 890                         found = false;
 891                         while(wp_from)
 892                         {
 893                                 if(vdist(wp_from.origin - wp_from_pos, <, 5))
 894                                 if(wp_from.classname == "waypoint")
 895                                 {
 896                                         found = true;
 897                                         break;
 898                                 }
 899                                 wp_from = wp_from.chain;
 900                         }
 901
 902                         if(!found)
 903                         {
 904                                 if(!removal_mode)
 905                                         LOG_INFO("NOTICE: Can not find waypoint at ", vtos(wp_from_pos), ". Path skipped");
 906                                 continue;
 907                         }
 908                 }
 909
 910                 // Search "to" waypoint
 911                 wp_to = findradius(wp_to_pos, 5);
 912                 found = false;
 913                 while(wp_to)
 914                 {
 915                         if(vdist(wp_to.origin - wp_to_pos, <, 5))
 916                         if(wp_to.classname == "waypoint")
 917                         {
 918                                 found = true;
 919                                 break;
 920                         }
 921                         wp_to = wp_to.chain;
 922                 }
 923
 924                 if(!found)
 925                 {
 926                         if(!removal_mode)
 927                                 LOG_INFO("NOTICE: Can not find waypoint at ", vtos(wp_to_pos), ". Path skipped");
 928                         continue;
 929                 }
 930
 931                 ++c;
 932                 if(removal_mode)
 933                 {
 934                         waypoint_removelink(wp_from, wp_to);
 935                         continue;
 936                 }
 937
 938                 waypoint_addlink(wp_from, wp_to);
 939                 wp_from.wphardwired = true;
 940                 wp_to.wphardwired = true;
 941                 waypoint_setupmodel(wp_from);
 942                 waypoint_setupmodel(wp_to);
 943         }
 944
 945         fclose(file);
 946
 947         LOG_TRACE(((removal_mode) ? "unloaded " : "loaded "),
 948                 ftos(c), " waypoint links from maps/", mapname, ".waypoints.hardwired");
 949 }
 950
 951 entity waypoint_get_link(entity w, float i)
 952 {
 953         switch(i)
 954         {
 955                 case  0:return w.wp00;
 956                 case  1:return w.wp01;
 957                 case  2:return w.wp02;
 958                 case  3:return w.wp03;
 959                 case  4:return w.wp04;
 960                 case  5:return w.wp05;
 961                 case  6:return w.wp06;
 962                 case  7:return w.wp07;
 963                 case  8:return w.wp08;
 964                 case  9:return w.wp09;
 965                 case 10:return w.wp10;
 966                 case 11:return w.wp11;
 967                 case 12:return w.wp12;
 968                 case 13:return w.wp13;
 969                 case 14:return w.wp14;
 970                 case 15:return w.wp15;
 971                 case 16:return w.wp16;
 972                 case 17:return w.wp17;
 973                 case 18:return w.wp18;
 974                 case 19:return w.wp19;
 975                 case 20:return w.wp20;
 976                 case 21:return w.wp21;
 977                 case 22:return w.wp22;
 978                 case 23:return w.wp23;
 979                 case 24:return w.wp24;
 980                 case 25:return w.wp25;
 981                 case 26:return w.wp26;
 982                 case 27:return w.wp27;
 983                 case 28:return w.wp28;
 984                 case 29:return w.wp29;
 985                 case 30:return w.wp30;
 986                 case 31:return w.wp31;
 987                 default:return NULL;
 988         }
 989 }
 990
 991 // Save all waypoint links to a file
 992 void waypoint_save_links()
 993 {
 994         // temporarily remove hardwired links so they don't get saved among normal links
 995         waypoint_remove_links_hardwired();
 996
 997         string gt_ext = GET_GAMETYPE_EXTENSION();
 998
 999         string filename = sprintf("maps/%s.waypoints.cache", strcat(mapname, gt_ext));
1000         int file = fopen(filename, FILE_WRITE);
1001         if (file < 0)
1002         {
1003                 LOG_INFOF("waypoint link save to %s failed", filename);
1004                 return;
1005         }
1006
1007         fputs(file, strcat("//", "WAYPOINT_VERSION ", ftos_decimals(WAYPOINT_VERSION, 2), "\n"));
1008         if (waypoint_time != "")
1009                 fputs(file, strcat("//", "WAYPOINT_TIME ", waypoint_time, "\n"));
1010
1011         int c = 0;
1012         IL_EACH(g_waypoints, true,
1013         {
1014                 for(int j = 0; j < 32; ++j)
1015                 {
1016                         entity link = waypoint_get_link(it, j);
1017                         if(link)
1018                         {
1019                                 // NOTE: vtos rounds vector components to 1 decimal place
1020                                 string s = strcat(vtos(it.origin), "*", vtos(link.origin), "\n");
1021                                 fputs(file, s);
1022                                 ++c;
1023                         }
1024                 }
1025         });
1026         fclose(file);
1027
1028         botframe_cachedwaypointlinks = true;
1029
1030         LOG_INFOF("saved %d waypoint links to %s", c, filename);
1031
1032         waypoint_load_links_hardwired();
1033 }
1034
1035 // save waypoints to gamedir/data/maps/mapname.waypoints
1036 void waypoint_saveall()
1037 {
1038         string gt_ext = GET_GAMETYPE_EXTENSION();
1039
1040         string filename = sprintf("maps/%s.waypoints", strcat(mapname, gt_ext));
1041         int file = fopen(filename, FILE_WRITE);
1042         if (file < 0)
1043         {
1044                 waypoint_save_links(); // save anyway?
1045                 botframe_loadedforcedlinks = false;
1046
1047                 LOG_INFOF("waypoint links: save to %s failed", filename);
1048                 return;
1049         }
1050
1051         float sym = autocvar_g_waypointeditor_symmetrical;
1052         string sym_str = ftos(sym);
1053         if (sym == -1 || (sym == 1 && autocvar_g_waypointeditor_symmetrical_order >= 2))
1054         {
1055                 if (sym == 1)
1056                 {
1057                         sym_str = cons(sym_str, "-");
1058                         sym_str = cons(sym_str, "-");
1059                 }
1060                 else
1061                 {
1062                         sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_origin.x));
1063                         sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_origin.y));
1064                 }
1065                 if (autocvar_g_waypointeditor_symmetrical_order >= 2)
1066                         sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_order));
1067         }
1068         else if (autocvar_g_waypointeditor_symmetrical == -2)
1069         {
1070                 sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_axis.x));
1071                 sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_axis.y));
1072         }
1073
1074         // a group of 3 comments doesn't break compatibility with older Xonotic versions
1075         // (they are read as a waypoint with origin '0 0 0' and flag 0 though)
1076         fputs(file, strcat("//", "WAYPOINT_VERSION ", ftos_decimals(WAYPOINT_VERSION, 2), "\n"));
1077         fputs(file, strcat("//", "WAYPOINT_SYMMETRY ", sym_str, "\n"));
1078
1079         strcpy(waypoint_time, strftime(true, "%Y-%m-%d %H:%M:%S"));
1080         fputs(file, strcat("//", "WAYPOINT_TIME ", waypoint_time, "\n"));
1081         //fputs(file, strcat("//", "\n"));
1082         //fputs(file, strcat("//", "\n"));
1083         //fputs(file, strcat("//", "\n"));
1084
1085         int c = 0;
1086         IL_EACH(g_waypoints, true,
1087         {
1088                 if(it.wpflags & WAYPOINTFLAG_GENERATED)
1089                         continue;
1090
1091                 string s;
1092                 // NOTE: vtos rounds vector components to 1 decimal place
1093                 s = strcat(vtos(it.origin + it.mins), "\n");
1094                 s = strcat(s, vtos(it.origin + it.maxs));
1095                 s = strcat(s, "\n");
1096                 s = strcat(s, ftos(it.wpflags));
1097                 s = strcat(s, "\n");
1098                 fputs(file, s);
1099                 c++;
1100         });
1101         fclose(file);
1102         waypoint_save_links();
1103         botframe_loadedforcedlinks = false;
1104
1105         LOG_INFOF("saved %d waypoints to %s", c, filename);
1106 }
1107
1108 // load waypoints from file
1109 float waypoint_loadall()
1110 {
1111         string s;
1112         float file, cwp, cwb, fl;
1113         vector m1, m2;
1114         cwp = 0;
1115         cwb = 0;
1116
1117         string gt_ext = GET_GAMETYPE_EXTENSION();
1118
1119         string filename = sprintf("maps/%s.waypoints", strcat(mapname, gt_ext));
1120         file = fopen(filename, FILE_READ);
1121
1122         if (gt_ext != "" && file < 0)
1123         {
1124                 // if race waypoint file doesn't exist load the default one
1125                 filename = sprintf("maps/%s.waypoints", mapname);
1126                 file = fopen(filename, FILE_READ);
1127         }
1128
1129         if (file < 0)
1130         {
1131                 LOG_TRACE("waypoint load from ", filename, " failed");
1132                 return 0;
1133         }
1134
1135         bool parse_comments = true;
1136         float ver = 0;
1137         float sym = 0;
1138         float sym_param1 = 0, sym_param2 = 0, sym_param3 = 0;
1139
1140         while ((s = fgets(file)))
1141         {
1142                 if(parse_comments)
1143                 {
1144                         if(substring(s, 0, 2) == "//")
1145                         {
1146                                 if(substring(s, 2, 17) == "WAYPOINT_VERSION ")
1147                                         ver = stof(substring(s, 19, -1));
1148                                 else if(substring(s, 2, 18) == "WAYPOINT_SYMMETRY ")
1149                                 {
1150                                         int tokens = tokenizebyseparator(substring(s, 20, -1), " ");
1151                                         if (tokens) { sym = stof(argv(0)); }
1152                                         if (tokens > 1) { sym_param1 = stof(argv(1)); }
1153                                         if (tokens > 2) { sym_param2 = stof(argv(2)); }
1154                                         if (tokens > 3) { sym_param3 = stof(argv(3)); }
1155                                 }
1156                                 else if(substring(s, 2, 14) == "WAYPOINT_TIME ")
1157                                         strcpy(waypoint_time, substring(s, 16, -1));
1158                                 continue;
1159                         }
1160                         else
1161                         {
1162                                 if(floor(ver) < floor(WAYPOINT_VERSION))
1163                                 {
1164                                         LOG_TRACE("waypoints for this map are outdated");
1165                                         LOG_TRACE("please update them in the editor");
1166                                 }
1167                                 parse_comments = false;
1168                         }
1169                 }
1170                 m1 = stov(s);
1171                 s = fgets(file);
1172                 if (!s)
1173                         break;
1174                 m2 = stov(s);
1175                 s = fgets(file);
1176                 if (!s)
1177                         break;
1178                 fl = stof(s);
1179                 waypoint_spawn(m1, m2, fl);
1180                 if (m1 == m2)
1181                         cwp = cwp + 1;
1182                 else
1183                         cwb = cwb + 1;
1184         }
1185         fclose(file);
1186         LOG_TRACE("loaded ", ftos(cwp), " waypoints and ", ftos(cwb), " wayboxes from maps/", mapname, ".waypoints");
1187
1188         if (autocvar_g_waypointeditor && autocvar_g_waypointeditor_symmetrical_allowload)
1189         {
1190                 cvar_set("g_waypointeditor_symmetrical", ftos(sym));
1191                 if (sym == 1 && sym_param3 < 2)
1192                         cvar_set("g_waypointeditor_symmetrical_order", "0"); // make sure this is reset if not loaded
1193                 if (sym == -1 || (sym == 1 && sym_param3 >= 2))
1194                 {
1195                         string params;
1196                         if (sym == 1)
1197                                 params = cons("-", "-");
1198                         else
1199                         {
1200                                 params = cons(ftos(sym_param1), ftos(sym_param2));
1201                                 cvar_set("g_waypointeditor_symmetrical_origin", params);
1202                         }
1203                         cvar_set("g_waypointeditor_symmetrical_order", ftos(sym_param3));
1204                         LOG_INFO("Waypoint editor: loaded symmetry ", ftos(sym), " with origin ", params, " and order ", ftos(sym_param3));
1205                 }
1206                 else if (sym == -2)
1207                 {
1208                         string params = strcat(ftos(sym_param1), " ", ftos(sym_param2));
1209                         cvar_set("g_waypointeditor_symmetrical_axis", params);
1210                         LOG_INFO("Waypoint editor: loaded symmetry ", ftos(sym), " with axis ", params);
1211                 }
1212                 else
1213                         LOG_INFO("Waypoint editor: loaded symmetry ", ftos(sym));
1214                 LOG_INFO(strcat("g_waypointeditor_symmetrical", " has been set to ", cvar_string("g_waypointeditor_symmetrical")));
1215         }
1216
1217         return cwp + cwb;
1218 }
1219
1220 #define waypoint_fixorigin(position, tracetest_ent) \
1221         waypoint_fixorigin_down_dir(position, tracetest_ent, '0 0 -1')
1222
1223 vector waypoint_fixorigin_down_dir(vector position, entity tracetest_ent, vector down_dir)
1224 {
1225         tracebox(position + '0 0 1', PL_MIN_CONST, PL_MAX_CONST, position + down_dir * 3000, MOVE_NOMONSTERS, tracetest_ent);
1226         if(trace_startsolid)
1227                 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);
1228         if(trace_startsolid)
1229                 tracebox(position + '0 0 1' * (1 - PL_MIN_CONST.z), PL_MIN_CONST, PL_MAX_CONST, position + down_dir * 3000, MOVE_NOMONSTERS, tracetest_ent);
1230         if(trace_fraction < 1)
1231                 position = trace_endpos;
1232         return position;
1233 }
1234
1235 void waypoint_spawnforitem_force(entity e, vector org)
1236 {
1237         // Fix the waypoint altitude if necessary
1238         org = waypoint_fixorigin(org, NULL);
1239
1240         // don't spawn an item spawnfunc_waypoint if it already exists
1241         IL_EACH(g_waypoints, true,
1242         {
1243                 if(it.wpisbox)
1244                 {
1245                         if(boxesoverlap(org, org, it.absmin, it.absmax))
1246                         {
1247                                 e.nearestwaypoint = it;
1248                                 return;
1249                         }
1250                 }
1251                 else
1252                 {
1253                         if(vdist(it.origin - org, <, 16))
1254                         {
1255                                 e.nearestwaypoint = it;
1256                                 return;
1257                         }
1258                 }
1259         });
1260
1261         e.nearestwaypoint = waypoint_spawn(org, org, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_ITEM);
1262 }
1263
1264 void waypoint_spawnforitem(entity e)
1265 {
1266         if(!bot_waypoints_for_items)
1267                 return;
1268
1269         waypoint_spawnforitem_force(e, e.origin);
1270 }
1271
1272 void waypoint_spawnforteleporter_boxes(entity e, int teleport_flag, vector org1, vector org2, vector destination1, vector destination2, float timetaken)
1273 {
1274         entity w;
1275         entity dw;
1276         w = waypoint_spawn(org1, org2, WAYPOINTFLAG_GENERATED | teleport_flag | WAYPOINTFLAG_NORELINK);
1277         dw = waypoint_spawn(destination1, destination2, WAYPOINTFLAG_GENERATED);
1278         // one way link to the destination
1279         w.wp00 = dw;
1280         w.wp00mincost = timetaken; // this is just for jump pads
1281         // the teleporter's nearest spawnfunc_waypoint is this one
1282         // (teleporters are not goals, so this is probably useless)
1283         e.nearestwaypoint = w;
1284         e.nearestwaypointtimeout = -1;
1285 }
1286
1287 void waypoint_spawnforteleporter_wz(entity e, vector org, vector destination, float timetaken, vector down_dir, entity tracetest_ent)
1288 {
1289         // warpzones with oblique warp plane rely on down_dir to snap waypoints
1290         // to the ground without leaving the warp plane
1291         // warpzones with horizontal warp plane (down_dir.x == -1) generate
1292         // destination waypoint snapped to the ground (leaving warpzone), source
1293         // waypoint in the center of the warp plane
1294         if(down_dir.x != -1)
1295                 org = waypoint_fixorigin_down_dir(org, tracetest_ent, down_dir);
1296         if(down_dir.x == -1)
1297                 down_dir = '0 0 -1';
1298         destination = waypoint_fixorigin_down_dir(destination, tracetest_ent, down_dir);
1299         waypoint_spawnforteleporter_boxes(e, WAYPOINTFLAG_TELEPORT, org, org, destination, destination, timetaken);
1300 }
1301
1302 void waypoint_spawnforteleporter(entity e, vector destination, float timetaken, entity tracetest_ent)
1303 {
1304         destination = waypoint_fixorigin(destination, tracetest_ent);
1305         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);
1306 }
1307
1308 entity waypoint_spawnpersonal(entity this, vector position)
1309 {
1310         entity w;
1311
1312         // drop the waypoint to a proper location:
1313         //   first move it up by a player height
1314         //   then move it down to hit the floor with player bbox size
1315         position = waypoint_fixorigin(position, this);
1316
1317         w = waypoint_spawn(position, position, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_PERSONAL);
1318         w.nearestwaypoint = NULL;
1319         w.nearestwaypointtimeout = 0;
1320         w.owner = this;
1321
1322         waypoint_schedulerelink(w);
1323
1324         return w;
1325 }
1326
1327 void waypoint_showlink(entity wp1, entity wp2, int display_type)
1328 {
1329         if (!(wp1 && wp2))
1330                 return;
1331
1332         if (wp1.wphardwired && wp2.wphardwired)
1333                 te_beam(NULL, wp1.origin, wp2.origin);
1334         else if (display_type == 1)
1335                 te_lightning2(NULL, wp1.origin, wp2.origin);
1336 }
1337
1338 void waypoint_showlinks_to(entity wp, int display_type)
1339 {
1340         IL_EACH(g_waypoints, it != wp,
1341         {
1342                 if (waypoint_islinked(it, wp))
1343                         waypoint_showlink(it, wp, display_type);
1344         });
1345 }
1346
1347 void waypoint_showlinks_from(entity wp, int display_type)
1348 {
1349         waypoint_showlink(wp.wp00, wp, display_type); waypoint_showlink(wp.wp16, wp, display_type);
1350         waypoint_showlink(wp.wp01, wp, display_type); waypoint_showlink(wp.wp17, wp, display_type);
1351         waypoint_showlink(wp.wp02, wp, display_type); waypoint_showlink(wp.wp18, wp, display_type);
1352         waypoint_showlink(wp.wp03, wp, display_type); waypoint_showlink(wp.wp19, wp, display_type);
1353         waypoint_showlink(wp.wp04, wp, display_type); waypoint_showlink(wp.wp20, wp, display_type);
1354         waypoint_showlink(wp.wp05, wp, display_type); waypoint_showlink(wp.wp21, wp, display_type);
1355         waypoint_showlink(wp.wp06, wp, display_type); waypoint_showlink(wp.wp22, wp, display_type);
1356         waypoint_showlink(wp.wp07, wp, display_type); waypoint_showlink(wp.wp23, wp, display_type);
1357         waypoint_showlink(wp.wp08, wp, display_type); waypoint_showlink(wp.wp24, wp, display_type);
1358         waypoint_showlink(wp.wp09, wp, display_type); waypoint_showlink(wp.wp25, wp, display_type);
1359         waypoint_showlink(wp.wp10, wp, display_type); waypoint_showlink(wp.wp26, wp, display_type);
1360         waypoint_showlink(wp.wp11, wp, display_type); waypoint_showlink(wp.wp27, wp, display_type);
1361         waypoint_showlink(wp.wp12, wp, display_type); waypoint_showlink(wp.wp28, wp, display_type);
1362         waypoint_showlink(wp.wp13, wp, display_type); waypoint_showlink(wp.wp29, wp, display_type);
1363         waypoint_showlink(wp.wp14, wp, display_type); waypoint_showlink(wp.wp30, wp, display_type);
1364         waypoint_showlink(wp.wp15, wp, display_type); waypoint_showlink(wp.wp31, wp, display_type);
1365 }
1366
1367 void botframe_showwaypointlinks()
1368 {
1369         if (time < botframe_waypointeditorlightningtime)
1370                 return;
1371         botframe_waypointeditorlightningtime = time + 0.5;
1372         FOREACH_CLIENT(IS_PLAYER(it) && !it.isbot,
1373         {
1374                 int display_type = 0;
1375                 entity head = navigation_findnearestwaypoint(it, false);
1376                 it.nearestwaypoint = head; // mainly useful for debug
1377                 it.nearestwaypointtimeout = time + 2; // while I'm at it...
1378                 if (IS_ONGROUND(it) || it.waterlevel > WATERLEVEL_NONE)
1379                         display_type = 1; // default
1380                 else if(head && (head.wphardwired))
1381                         display_type = 2; // only hardwired
1382
1383                 if (display_type)
1384                 {
1385                         //navigation_testtracewalk = true;
1386                         //print("currently selected WP is ", etos(head), "\n");
1387                         //navigation_testtracewalk = false;
1388                         if (head)
1389                         {
1390                                 te_lightning2(NULL, head.origin, it.origin);
1391                                 if(PHYS_INPUT_BUTTON_CROUCH(it))
1392                                         waypoint_showlinks_to(head, display_type);
1393                                 else
1394                                         waypoint_showlinks_from(head, display_type);
1395                         }
1396                 }
1397         });
1398 }
1399
1400 float botframe_autowaypoints_fixdown(vector v)
1401 {
1402         tracebox(v, PL_MIN_CONST, PL_MAX_CONST, v + '0 0 -64', MOVE_NOMONSTERS, NULL);
1403         if(trace_fraction >= 1)
1404                 return 0;
1405         return 1;
1406 }
1407
1408 float botframe_autowaypoints_createwp(vector v, entity p, .entity fld, float f)
1409 {
1410         IL_EACH(g_waypoints, boxesoverlap(v - '32 32 32', v + '32 32 32', it.absmin, it.absmax),
1411         {
1412                 // if a matching spawnfunc_waypoint already exists, don't add a duplicate
1413                 return 0;
1414         });
1415
1416         waypoint_schedulerelink(p.(fld) = waypoint_spawn(v, v, f));
1417         return 1;
1418 }
1419
1420 // return value:
1421 //    1 = WP created
1422 //    0 = no action needed
1423 //   -1 = temp fail, try from world too
1424 //   -2 = permanent fail, do not retry
1425 float botframe_autowaypoints_fix_from(entity p, float walkfromwp, entity wp, .entity fld)
1426 {
1427         // make it possible to go from p to wp, if we can
1428         // if wp is NULL, nearest is chosen
1429
1430         entity w;
1431         vector porg;
1432         float t, tmin, tmax;
1433         vector o;
1434         vector save;
1435
1436         if(!botframe_autowaypoints_fixdown(p.origin))
1437                 return -2;
1438         porg = trace_endpos;
1439
1440         if(wp)
1441         {
1442                 // if any WP w fulfills wp -> w -> porg and w is closer than wp, then switch from wp to w
1443
1444                 // if wp -> porg, then OK
1445                 float maxdist;
1446                 if(navigation_waypoint_will_link(wp.origin, porg, p, porg, 0, wp.origin, 0, walkfromwp, 1050))
1447                 {
1448                         // we may find a better one
1449                         maxdist = vlen(wp.origin - porg);
1450                 }
1451                 else
1452                 {
1453                         // accept any "good"
1454                         maxdist = 2100;
1455                 }
1456
1457                 float bestdist = maxdist;
1458                 IL_EACH(g_waypoints, it != wp && !(it.wpflags & WAYPOINTFLAG_NORELINK),
1459                 {
1460                         float d = vlen(wp.origin - it.origin) + vlen(it.origin - porg);
1461                         if(d < bestdist)
1462                         if(navigation_waypoint_will_link(wp.origin, it.origin, p, it.origin, 0, wp.origin, 0, walkfromwp, 1050))
1463                         if(navigation_waypoint_will_link(it.origin, porg, p, porg, 0, it.origin, 0, walkfromwp, 1050))
1464                         {
1465                                 bestdist = d;
1466                                 p.(fld) = it;
1467                         }
1468                 });
1469                 if(bestdist < maxdist)
1470                 {
1471                         LOG_INFO("update chain to new nearest WP ", etos(p.(fld)));
1472                         return 0;
1473                 }
1474
1475                 if(bestdist < 2100)
1476                 {
1477                         // we know maxdist < 2100
1478                         // so wp -> porg is still valid
1479                         // all is good
1480                         p.(fld) = wp;
1481                         return 0;
1482                 }
1483
1484                 // otherwise, no existing WP can fix our issues
1485         }
1486         else
1487         {
1488                 save = p.origin;
1489                 setorigin(p, porg);
1490                 w = navigation_findnearestwaypoint(p, walkfromwp);
1491                 setorigin(p, save);
1492                 if(w)
1493                 {
1494                         p.(fld) = w;
1495                         return 0;
1496                 }
1497         }
1498
1499         tmin = 0;
1500         tmax = 1;
1501         for (;;)
1502         {
1503                 if(tmax - tmin < 0.001)
1504                 {
1505                         // did not get a good candidate
1506                         return -1;
1507                 }
1508
1509                 t = (tmin + tmax) * 0.5;
1510                 o = antilag_takebackorigin(p, CS(p), time - t);
1511                 if(!botframe_autowaypoints_fixdown(o))
1512                         return -2;
1513                 o = trace_endpos;
1514
1515                 if(wp)
1516                 {
1517                         if(!navigation_waypoint_will_link(wp.origin, o, p, o, 0, wp.origin, 0, walkfromwp, 1050))
1518                         {
1519                                 // we cannot walk from wp.origin to o
1520                                 // get closer to tmax
1521                                 tmin = t;
1522                                 continue;
1523                         }
1524                 }
1525                 else
1526                 {
1527                         save = p.origin;
1528                         setorigin(p, o);
1529                         w = navigation_findnearestwaypoint(p, walkfromwp);
1530                         setorigin(p, save);
1531                         if(!w)
1532                         {
1533                                 // we cannot walk from any WP to o
1534                                 // get closer to tmax
1535                                 tmin = t;
1536                                 continue;
1537                         }
1538                 }
1539
1540                 // if we get here, o is valid regarding waypoints
1541                 // check if o is connected right to the player
1542                 // we break if it succeeds, as that means o is a good waypoint location
1543                 if(navigation_waypoint_will_link(o, porg, p, porg, 0, o, 0, walkfromwp, 1050))
1544                         break;
1545
1546                 // o is no good, we need to get closer to the player
1547                 tmax = t;
1548         }
1549
1550         LOG_INFO("spawning a waypoint for connecting to ", etos(wp));
1551         botframe_autowaypoints_createwp(o, p, fld, 0);
1552         return 1;
1553 }
1554
1555 // automatically create missing waypoints
1556 .entity botframe_autowaypoints_lastwp0, botframe_autowaypoints_lastwp1;
1557 void botframe_autowaypoints_fix(entity p, float walkfromwp, .entity fld)
1558 {
1559         float r = botframe_autowaypoints_fix_from(p, walkfromwp, p.(fld), fld);
1560         if(r != -1)
1561                 return;
1562         r = botframe_autowaypoints_fix_from(p, walkfromwp, NULL, fld);
1563         if(r != -1)
1564                 return;
1565
1566         LOG_INFO("emergency: got no good nearby WP to build a link from, starting a new chain");
1567         if(!botframe_autowaypoints_fixdown(p.origin))
1568                 return; // shouldn't happen, caught above
1569         botframe_autowaypoints_createwp(trace_endpos, p, fld, WAYPOINTFLAG_PROTECTED);
1570 }
1571
1572 void botframe_deleteuselesswaypoints()
1573 {
1574         IL_EACH(g_items, it.bot_pickup,
1575         {
1576                 // NOTE: this protects waypoints if they're the ONLY nearest
1577                 // waypoint. That's the intention.
1578                 navigation_findnearestwaypoint(it, false);  // Walk TO item.
1579                 navigation_findnearestwaypoint(it, true);  // Walk FROM item.
1580         });
1581         IL_EACH(g_waypoints, true,
1582         {
1583                 it.wpflags |= WAYPOINTFLAG_DEAD_END;
1584                 it.wpflags &= ~WAYPOINTFLAG_USEFUL;
1585                 // WP is useful if:
1586                 if (it.wpflags & WAYPOINTFLAG_ITEM)
1587                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1588                 if (it.wpflags & WAYPOINTFLAG_TELEPORT)
1589                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1590                 if (it.wpflags & WAYPOINTFLAG_LADDER)
1591                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1592                 if (it.wpflags & WAYPOINTFLAG_PROTECTED)
1593                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1594                 // b) WP is closest WP for an item/spawnpoint/other entity
1595                 //    This has been done above by protecting these WPs.
1596         });
1597         // c) There are w1, w, w2 so that w1 -> w, w -> w2 and not w1 -> w2.
1598         IL_EACH(g_waypoints, !(it.wpflags & WAYPOINTFLAG_PERSONAL),
1599         {
1600                 for (int m = 0; m < 32; ++m)
1601                 {
1602                         entity w = waypoint_get_link(it, m);
1603                         if (!w)
1604                                 break;
1605                         if (w.wpflags & WAYPOINTFLAG_PERSONAL)
1606                                 continue;
1607                         if (w.wpflags & WAYPOINTFLAG_USEFUL)
1608                                 continue;
1609                         for (int j = 0; j < 32; ++j)
1610                         {
1611                                 entity w2 = waypoint_get_link(w, j);
1612                                 if (!w2)
1613                                         break;
1614                                 if (it == w2)
1615                                         continue;
1616                                 if (w2.wpflags & WAYPOINTFLAG_PERSONAL)
1617                                         continue;
1618                                 // If we got here, it != w2 exist with it -> w
1619                                 // and w -> w2. That means the waypoint is not
1620                                 // a dead end.
1621                                 w.wpflags &= ~WAYPOINTFLAG_DEAD_END;
1622                                 for (int k = 0; k < 32; ++k)
1623                                 {
1624                                         if (waypoint_get_link(it, k) == w2)
1625                                                 continue;
1626                                         // IF WE GET HERE, w is proven useful
1627                                         // to get from it to w2!
1628                                         w.wpflags |= WAYPOINTFLAG_USEFUL;
1629                                         goto next;
1630                                 }
1631                         }
1632 LABEL(next)
1633                 }
1634         });
1635         // d) The waypoint is a dead end. Dead end waypoints must be kept as
1636         //     they are needed to complete routes while autowaypointing.
1637
1638         IL_EACH(g_waypoints, !(it.wpflags & (WAYPOINTFLAG_USEFUL | WAYPOINTFLAG_DEAD_END)),
1639         {
1640                 LOG_INFOF("Removed a waypoint at %v. Try again for more!", it.origin);
1641                 te_explosion(it.origin);
1642                 waypoint_remove(it);
1643                 break;
1644         });
1645
1646         IL_EACH(g_waypoints, true,
1647         {
1648                 it.wpflags &= ~(WAYPOINTFLAG_USEFUL | WAYPOINTFLAG_DEAD_END); // temp flag
1649         });
1650 }
1651
1652 void botframe_autowaypoints()
1653 {
1654         FOREACH_CLIENT(IS_PLAYER(it) && IS_REAL_CLIENT(it) && !IS_DEAD(it), {
1655                 // going back is broken, so only fix waypoints to walk TO the player
1656                 //botframe_autowaypoints_fix(p, false, botframe_autowaypoints_lastwp0);
1657                 botframe_autowaypoints_fix(it, true, botframe_autowaypoints_lastwp1);
1658                 //te_explosion(p.botframe_autowaypoints_lastwp0.origin);
1659         });
1660
1661         if (autocvar_g_waypointeditor_auto >= 2) {
1662                 botframe_deleteuselesswaypoints();
1663         }
1664 }
1665