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         int dphitcontentsmask_save = this.dphitcontentsmask;
 571         this.dphitcontentsmask = DPCONTENTS_SOLID | DPCONTENTS_BODY | DPCONTENTS_PLAYERCLIP | DPCONTENTS_BOTCLIP;
 572
 573         bot_navigation_movemode = ((autocvar_bot_navigation_ignoreplayers) ? MOVE_NOMONSTERS : MOVE_NORMAL);
 574
 575         //dprint("waypoint_think wpisbox = ", ftos(this.wpisbox), "\n");
 576         IL_EACH(g_waypoints, this != it,
 577         {
 578                 if (boxesoverlap(this.absmin, this.absmax, it.absmin, it.absmax))
 579                 {
 580                         waypoint_addlink(this, it);
 581                         waypoint_addlink(it, this);
 582                 }
 583                 else
 584                 {
 585                         ++relink_total;
 586                         if(!checkpvs(this.origin, it))
 587                         {
 588                                 ++relink_pvsculled;
 589                                 continue;
 590                         }
 591
 592                         sv = set_tracewalk_dest_2(this, it.origin);
 593                         sv2 = tracewalk_dest;
 594                         sv2_height = tracewalk_dest_height;
 595                         ev = set_tracewalk_dest_2(it, this.origin);
 596                         ev2 = tracewalk_dest;
 597                         ev2_height = tracewalk_dest_height;
 598
 599                         dv = ev - sv;
 600                         dv.z = 0;
 601                         if(vdist(dv, >=, 1050)) // max search distance in XY
 602                         {
 603                                 ++relink_lengthculled;
 604                                 continue;
 605                         }
 606
 607                         navigation_testtracewalk = 0;
 608
 609                         //traceline(this.origin, it.origin, false, NULL);
 610                         //if (trace_fraction == 1)
 611                         if (this.wpisbox)
 612                                 relink_walkculled += 0.5;
 613                         else
 614                         {
 615                                 if (tracewalk(this, sv, PL_MIN_CONST, PL_MAX_CONST, ev2, ev2_height, MOVE_NOMONSTERS))
 616                                         waypoint_addlink(this, it);
 617                                 else
 618                                         relink_walkculled += 0.5;
 619                         }
 620
 621                         if (it.wpisbox)
 622                                 relink_walkculled += 0.5;
 623                         else
 624                         {
 625                                 if (tracewalk(this, ev, PL_MIN_CONST, PL_MAX_CONST, sv2, sv2_height, MOVE_NOMONSTERS))
 626                                         waypoint_addlink(it, this);
 627                                 else
 628                                         relink_walkculled += 0.5;
 629                         }
 630                 }
 631         });
 632         navigation_testtracewalk = 0;
 633         this.wplinked = true;
 634         this.dphitcontentsmask = dphitcontentsmask_save;
 635 }
 636
 637 void waypoint_clearlinks(entity wp)
 638 {
 639         // clear links to other waypoints
 640         float f = 10000000;
 641         wp.wp00 = wp.wp01 = wp.wp02 = wp.wp03 = wp.wp04 = wp.wp05 = wp.wp06 = wp.wp07 = NULL;
 642         wp.wp08 = wp.wp09 = wp.wp10 = wp.wp11 = wp.wp12 = wp.wp13 = wp.wp14 = wp.wp15 = NULL;
 643         wp.wp16 = wp.wp17 = wp.wp18 = wp.wp19 = wp.wp20 = wp.wp21 = wp.wp22 = wp.wp23 = NULL;
 644         wp.wp24 = wp.wp25 = wp.wp26 = wp.wp27 = wp.wp28 = wp.wp29 = wp.wp30 = wp.wp31 = NULL;
 645
 646         wp.wp00mincost = wp.wp01mincost = wp.wp02mincost = wp.wp03mincost = wp.wp04mincost = wp.wp05mincost = wp.wp06mincost = wp.wp07mincost = f;
 647         wp.wp08mincost = wp.wp09mincost = wp.wp10mincost = wp.wp11mincost = wp.wp12mincost = wp.wp13mincost = wp.wp14mincost = wp.wp15mincost = f;
 648         wp.wp16mincost = wp.wp17mincost = wp.wp18mincost = wp.wp19mincost = wp.wp20mincost = wp.wp21mincost = wp.wp22mincost = wp.wp23mincost = f;
 649         wp.wp24mincost = wp.wp25mincost = wp.wp26mincost = wp.wp27mincost = wp.wp28mincost = wp.wp29mincost = wp.wp30mincost = wp.wp31mincost = f;
 650
 651         wp.wplinked = false;
 652 }
 653
 654 // tell a spawnfunc_waypoint to relink
 655 void waypoint_schedulerelink(entity wp)
 656 {
 657         if (wp == NULL)
 658                 return;
 659
 660         waypoint_setupmodel(wp);
 661         wp.wpisbox = vdist(wp.size, >, 0);
 662         wp.enemy = NULL;
 663         if (!(wp.wpflags & WAYPOINTFLAG_PERSONAL))
 664                 wp.owner = NULL;
 665         if (!(wp.wpflags & WAYPOINTFLAG_NORELINK))
 666                 waypoint_clearlinks(wp);
 667         // schedule an actual relink on next frame
 668         setthink(wp, waypoint_think);
 669         wp.nextthink = time;
 670         wp.effects = EF_LOWPRECISION;
 671 }
 672
 673 // spawnfunc_waypoint map entity
 674 spawnfunc(waypoint)
 675 {
 676         IL_PUSH(g_waypoints, this);
 677
 678         setorigin(this, this.origin);
 679         // schedule a relink after other waypoints have had a chance to spawn
 680         waypoint_clearlinks(this);
 681         //waypoint_schedulerelink(this);
 682 }
 683
 684 // tell all waypoints to relink
 685 // actually this is useful only to update relink_* stats
 686 void waypoint_schedulerelinkall()
 687 {
 688         relink_total = relink_walkculled = relink_pvsculled = relink_lengthculled = 0;
 689         IL_EACH(g_waypoints, true,
 690         {
 691                 waypoint_schedulerelink(it);
 692         });
 693         waypoint_load_links_hardwired();
 694 }
 695
 696 #define GET_GAMETYPE_EXTENSION() ((g_race) ? ".race" : "")
 697
 698 // Load waypoint links from file
 699 bool waypoint_load_links()
 700 {
 701         string s;
 702         float file, tokens, c = 0, found;
 703         entity wp_from = NULL, wp_to;
 704         vector wp_to_pos, wp_from_pos;
 705
 706         string gt_ext = GET_GAMETYPE_EXTENSION();
 707
 708         string filename = sprintf("maps/%s.waypoints.cache", strcat(mapname, gt_ext));
 709         file = fopen(filename, FILE_READ);
 710
 711         if (gt_ext != "" && file < 0)
 712         {
 713                 // if race waypoint file doesn't exist load the default one
 714                 filename = sprintf("maps/%s.waypoints.cache", mapname);
 715                 file = fopen(filename, FILE_READ);
 716         }
 717
 718         if (file < 0)
 719         {
 720                 LOG_TRACE("waypoint links load from ", filename, " failed");
 721                 waypoint_schedulerelinkall();
 722                 return false;
 723         }
 724
 725         bool parse_comments = true;
 726         float ver = 0;
 727
 728         while ((s = fgets(file)))
 729         {
 730                 if(parse_comments)
 731                 {
 732                         if(substring(s, 0, 2) == "//")
 733                         {
 734                                 if(substring(s, 2, 17) == "WAYPOINT_VERSION ")
 735                                         ver = stof(substring(s, 19, -1));
 736                                 continue;
 737                         }
 738                         else
 739                         {
 740                                 if(ver < WAYPOINT_VERSION)
 741                                 {
 742                                         LOG_TRACE("waypoint links for this map are outdated.");
 743                                         if (g_assault)
 744                                         {
 745                                                 LOG_TRACE("Assault waypoint links need to be manually updated in the editor");
 746                                         }
 747                                         else
 748                                         {
 749                                                 LOG_TRACE("automatically updating...");
 750                                                 waypoint_schedulerelinkall();
 751                                                 fclose(file);
 752                                                 return false;
 753                                         }
 754                                 }
 755                                 parse_comments = false;
 756                         }
 757                 }
 758
 759                 tokens = tokenizebyseparator(s, "*");
 760
 761                 if (tokens!=2)
 762                 {
 763                         // bad file format
 764                         fclose(file);
 765                         waypoint_schedulerelinkall(); // link all the autogenerated waypoints (teleporters)
 766                         return false;
 767                 }
 768
 769                 wp_from_pos     = stov(argv(0));
 770                 wp_to_pos       = stov(argv(1));
 771
 772                 // Search "from" waypoint
 773                 if(!wp_from || wp_from.origin!=wp_from_pos)
 774                 {
 775                         wp_from = findradius(wp_from_pos, 1);
 776                         found = false;
 777                         while(wp_from)
 778                         {
 779                                 if(vdist(wp_from.origin - wp_from_pos, <, 1))
 780                                 if(wp_from.classname == "waypoint")
 781                                 {
 782                                         found = true;
 783                                         break;
 784                                 }
 785                                 wp_from = wp_from.chain;
 786                         }
 787
 788                         if(!found)
 789                         {
 790                                 LOG_TRACE("waypoint_load_links: couldn't find 'from' waypoint at ", vtos(wp_from_pos));
 791                                 continue;
 792                         }
 793                 }
 794
 795                 // Search "to" waypoint
 796                 wp_to = findradius(wp_to_pos, 1);
 797                 found = false;
 798                 while(wp_to)
 799                 {
 800                         if(vdist(wp_to.origin - wp_to_pos, <, 1))
 801                         if(wp_to.classname == "waypoint")
 802                         {
 803                                 found = true;
 804                                 break;
 805                         }
 806                         wp_to = wp_to.chain;
 807                 }
 808
 809                 if(!found)
 810                 {
 811                         LOG_TRACE("waypoint_load_links: couldn't find 'to' waypoint at ", vtos(wp_to_pos));
 812                         continue;
 813                 }
 814
 815                 ++c;
 816                 waypoint_addlink(wp_from, wp_to);
 817         }
 818
 819         fclose(file);
 820
 821         LOG_TRACE("loaded ", ftos(c), " waypoint links from ", filename);
 822
 823         bool scheduled = false;
 824         IL_EACH(g_waypoints, it.wpflags & WAYPOINTFLAG_ITEM,
 825         {
 826                 if (!it.wp00)
 827                 {
 828                         waypoint_schedulerelink(it);
 829                         scheduled = true;
 830                 }
 831         });
 832         if (scheduled)
 833                 return false;
 834
 835         botframe_cachedwaypointlinks = true;
 836         return true;
 837 }
 838
 839 void waypoint_load_or_remove_links_hardwired(bool removal_mode)
 840 {
 841         string s;
 842         float file, tokens, c = 0, found;
 843         entity wp_from = NULL, wp_to;
 844         vector wp_to_pos, wp_from_pos;
 845
 846         string gt_ext = GET_GAMETYPE_EXTENSION();
 847
 848         string filename = sprintf("maps/%s.waypoints.hardwired", strcat(mapname, gt_ext));
 849         file = fopen(filename, FILE_READ);
 850
 851         if (gt_ext != "" && file < 0)
 852         {
 853                 // if race waypoint file doesn't exist load the default one
 854                 filename = sprintf("maps/%s.waypoints.hardwired", mapname);
 855                 file = fopen(filename, FILE_READ);
 856         }
 857
 858         botframe_loadedforcedlinks = true;
 859
 860         if (file < 0)
 861         {
 862                 if(!removal_mode)
 863                         LOG_TRACE("waypoint links load from ", filename, " failed");
 864                 return;
 865         }
 866
 867         while ((s = fgets(file)))
 868         {
 869                 if(substring(s, 0, 2)=="//")
 870                         continue;
 871
 872                 if(substring(s, 0, 1)=="#")
 873                         continue;
 874
 875                 tokens = tokenizebyseparator(s, "*");
 876
 877                 if (tokens!=2)
 878                         continue;
 879
 880                 wp_from_pos     = stov(argv(0));
 881                 wp_to_pos       = stov(argv(1));
 882
 883                 // Search "from" waypoint
 884                 if(!wp_from || wp_from.origin!=wp_from_pos)
 885                 {
 886                         wp_from = findradius(wp_from_pos, 5);
 887                         found = false;
 888                         while(wp_from)
 889                         {
 890                                 if(vdist(wp_from.origin - wp_from_pos, <, 5))
 891                                 if(wp_from.classname == "waypoint")
 892                                 {
 893                                         found = true;
 894                                         break;
 895                                 }
 896                                 wp_from = wp_from.chain;
 897                         }
 898
 899                         if(!found)
 900                         {
 901                                 if(!removal_mode)
 902                                         LOG_INFO("NOTICE: Can not find waypoint at ", vtos(wp_from_pos), ". Path skipped");
 903                                 continue;
 904                         }
 905                 }
 906
 907                 // Search "to" waypoint
 908                 wp_to = findradius(wp_to_pos, 5);
 909                 found = false;
 910                 while(wp_to)
 911                 {
 912                         if(vdist(wp_to.origin - wp_to_pos, <, 5))
 913                         if(wp_to.classname == "waypoint")
 914                         {
 915                                 found = true;
 916                                 break;
 917                         }
 918                         wp_to = wp_to.chain;
 919                 }
 920
 921                 if(!found)
 922                 {
 923                         if(!removal_mode)
 924                                 LOG_INFO("NOTICE: Can not find waypoint at ", vtos(wp_to_pos), ". Path skipped");
 925                         continue;
 926                 }
 927
 928                 ++c;
 929                 if(removal_mode)
 930                 {
 931                         waypoint_removelink(wp_from, wp_to);
 932                         continue;
 933                 }
 934
 935                 waypoint_addlink(wp_from, wp_to);
 936                 wp_from.wphardwired = true;
 937                 wp_to.wphardwired = true;
 938                 waypoint_setupmodel(wp_from);
 939                 waypoint_setupmodel(wp_to);
 940         }
 941
 942         fclose(file);
 943
 944         LOG_TRACE(((removal_mode) ? "unloaded " : "loaded "),
 945                 ftos(c), " waypoint links from maps/", mapname, ".waypoints.hardwired");
 946 }
 947
 948 entity waypoint_get_link(entity w, float i)
 949 {
 950         switch(i)
 951         {
 952                 case  0:return w.wp00;
 953                 case  1:return w.wp01;
 954                 case  2:return w.wp02;
 955                 case  3:return w.wp03;
 956                 case  4:return w.wp04;
 957                 case  5:return w.wp05;
 958                 case  6:return w.wp06;
 959                 case  7:return w.wp07;
 960                 case  8:return w.wp08;
 961                 case  9:return w.wp09;
 962                 case 10:return w.wp10;
 963                 case 11:return w.wp11;
 964                 case 12:return w.wp12;
 965                 case 13:return w.wp13;
 966                 case 14:return w.wp14;
 967                 case 15:return w.wp15;
 968                 case 16:return w.wp16;
 969                 case 17:return w.wp17;
 970                 case 18:return w.wp18;
 971                 case 19:return w.wp19;
 972                 case 20:return w.wp20;
 973                 case 21:return w.wp21;
 974                 case 22:return w.wp22;
 975                 case 23:return w.wp23;
 976                 case 24:return w.wp24;
 977                 case 25:return w.wp25;
 978                 case 26:return w.wp26;
 979                 case 27:return w.wp27;
 980                 case 28:return w.wp28;
 981                 case 29:return w.wp29;
 982                 case 30:return w.wp30;
 983                 case 31:return w.wp31;
 984                 default:return NULL;
 985         }
 986 }
 987
 988 // Save all waypoint links to a file
 989 void waypoint_save_links()
 990 {
 991         // temporarily remove hardwired links so they don't get saved among normal links
 992         waypoint_remove_links_hardwired();
 993
 994         string gt_ext = GET_GAMETYPE_EXTENSION();
 995
 996         string filename = sprintf("maps/%s.waypoints.cache", strcat(mapname, gt_ext));
 997         int file = fopen(filename, FILE_WRITE);
 998         if (file < 0)
 999         {
1000                 LOG_INFOF("waypoint link save to %s failed", filename);
1001                 return;
1002         }
1003
1004         fputs(file, strcat("//", "WAYPOINT_VERSION ", ftos_decimals(WAYPOINT_VERSION, 2), "\n"));
1005
1006         int c = 0;
1007         IL_EACH(g_waypoints, true,
1008         {
1009                 for(int j = 0; j < 32; ++j)
1010                 {
1011                         entity link = waypoint_get_link(it, j);
1012                         if(link)
1013                         {
1014                                 string s = strcat(vtos(it.origin), "*", vtos(link.origin), "\n");
1015                                 fputs(file, s);
1016                                 ++c;
1017                         }
1018                 }
1019         });
1020         fclose(file);
1021
1022         botframe_cachedwaypointlinks = true;
1023
1024         LOG_INFOF("saved %d waypoint links to %s", c, filename);
1025
1026         waypoint_load_links_hardwired();
1027 }
1028
1029 // save waypoints to gamedir/data/maps/mapname.waypoints
1030 void waypoint_saveall()
1031 {
1032         string gt_ext = GET_GAMETYPE_EXTENSION();
1033
1034         string filename = sprintf("maps/%s.waypoints", strcat(mapname, gt_ext));
1035         int file = fopen(filename, FILE_WRITE);
1036         if (file < 0)
1037         {
1038                 waypoint_save_links(); // save anyway?
1039                 botframe_loadedforcedlinks = false;
1040
1041                 LOG_INFOF("waypoint links: save to %s failed", filename);
1042                 return;
1043         }
1044
1045         float sym = autocvar_g_waypointeditor_symmetrical;
1046         string sym_str = ftos(sym);
1047         if (sym == -1 || (sym == 1 && autocvar_g_waypointeditor_symmetrical_order >= 2))
1048         {
1049                 if (sym == 1)
1050                 {
1051                         sym_str = cons(sym_str, "-");
1052                         sym_str = cons(sym_str, "-");
1053                 }
1054                 else
1055                 {
1056                         sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_origin.x));
1057                         sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_origin.y));
1058                 }
1059                 if (autocvar_g_waypointeditor_symmetrical_order >= 2)
1060                         sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_order));
1061         }
1062         else if (autocvar_g_waypointeditor_symmetrical == -2)
1063         {
1064                 sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_axis.x));
1065                 sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_axis.y));
1066         }
1067
1068         // a group of 3 comments doesn't break compatibility with older Xonotic versions
1069         // (they are read as a waypoint with origin '0 0 0' and flag 0 though)
1070         fputs(file, strcat("//", "WAYPOINT_VERSION ", ftos_decimals(WAYPOINT_VERSION, 2), "\n"));
1071         fputs(file, strcat("//", "WAYPOINT_SYMMETRY ", sym_str, "\n"));
1072         fputs(file, strcat("//", "\n"));
1073
1074         int c = 0;
1075         IL_EACH(g_waypoints, true,
1076         {
1077                 if(it.wpflags & WAYPOINTFLAG_GENERATED)
1078                         continue;
1079
1080                 string s;
1081                 s = strcat(vtos(it.origin + it.mins), "\n");
1082                 s = strcat(s, vtos(it.origin + it.maxs));
1083                 s = strcat(s, "\n");
1084                 s = strcat(s, ftos(it.wpflags));
1085                 s = strcat(s, "\n");
1086                 fputs(file, s);
1087                 c++;
1088         });
1089         fclose(file);
1090         waypoint_save_links();
1091         botframe_loadedforcedlinks = false;
1092
1093         LOG_INFOF("saved %d waypoints to %s", c, filename);
1094 }
1095
1096 // load waypoints from file
1097 float waypoint_loadall()
1098 {
1099         string s;
1100         float file, cwp, cwb, fl;
1101         vector m1, m2;
1102         cwp = 0;
1103         cwb = 0;
1104
1105         string gt_ext = GET_GAMETYPE_EXTENSION();
1106
1107         string filename = sprintf("maps/%s.waypoints", strcat(mapname, gt_ext));
1108         file = fopen(filename, FILE_READ);
1109
1110         if (gt_ext != "" && file < 0)
1111         {
1112                 // if race waypoint file doesn't exist load the default one
1113                 filename = sprintf("maps/%s.waypoints", mapname);
1114                 file = fopen(filename, FILE_READ);
1115         }
1116
1117         if (file < 0)
1118         {
1119                 LOG_TRACE("waypoint load from ", filename, " failed");
1120                 return 0;
1121         }
1122
1123         bool parse_comments = true;
1124         float ver = 0;
1125         float sym = 0;
1126         float sym_param1 = 0, sym_param2 = 0, sym_param3 = 0;
1127
1128         while ((s = fgets(file)))
1129         {
1130                 if(parse_comments)
1131                 {
1132                         if(substring(s, 0, 2) == "//")
1133                         {
1134                                 if(substring(s, 2, 17) == "WAYPOINT_VERSION ")
1135                                         ver = stof(substring(s, 19, -1));
1136                                 else if(substring(s, 2, 18) == "WAYPOINT_SYMMETRY ")
1137                                 {
1138                                         int tokens = tokenizebyseparator(substring(s, 20, -1), " ");
1139                                         if (tokens) { sym = stof(argv(0)); }
1140                                         if (tokens > 1) { sym_param1 = stof(argv(1)); }
1141                                         if (tokens > 2) { sym_param2 = stof(argv(2)); }
1142                                         if (tokens > 3) { sym_param3 = stof(argv(3)); }
1143                                 }
1144                                 continue;
1145                         }
1146                         else
1147                         {
1148                                 if(floor(ver) < floor(WAYPOINT_VERSION))
1149                                 {
1150                                         LOG_TRACE("waypoints for this map are outdated");
1151                                         LOG_TRACE("please update them in the editor");
1152                                 }
1153                                 parse_comments = false;
1154                         }
1155                 }
1156                 m1 = stov(s);
1157                 s = fgets(file);
1158                 if (!s)
1159                         break;
1160                 m2 = stov(s);
1161                 s = fgets(file);
1162                 if (!s)
1163                         break;
1164                 fl = stof(s);
1165                 waypoint_spawn(m1, m2, fl);
1166                 if (m1 == m2)
1167                         cwp = cwp + 1;
1168                 else
1169                         cwb = cwb + 1;
1170         }
1171         fclose(file);
1172         LOG_TRACE("loaded ", ftos(cwp), " waypoints and ", ftos(cwb), " wayboxes from maps/", mapname, ".waypoints");
1173
1174         if (autocvar_g_waypointeditor && autocvar_g_waypointeditor_symmetrical_allowload)
1175         {
1176                 cvar_set("g_waypointeditor_symmetrical", ftos(sym));
1177                 if (sym == 1 && sym_param3 < 2)
1178                         cvar_set("g_waypointeditor_symmetrical_order", "0"); // make sure this is reset if not loaded
1179                 if (sym == -1 || (sym == 1 && sym_param3 >= 2))
1180                 {
1181                         string params;
1182                         if (sym == 1)
1183                                 params = cons("-", "-");
1184                         else
1185                         {
1186                                 params = cons(ftos(sym_param1), ftos(sym_param2));
1187                                 cvar_set("g_waypointeditor_symmetrical_origin", params);
1188                         }
1189                         cvar_set("g_waypointeditor_symmetrical_order", ftos(sym_param3));
1190                         LOG_INFO("Waypoint editor: loaded symmetry ", ftos(sym), " with origin ", params, " and order ", ftos(sym_param3));
1191                 }
1192                 else if (sym == -2)
1193                 {
1194                         string params = strcat(ftos(sym_param1), " ", ftos(sym_param2));
1195                         cvar_set("g_waypointeditor_symmetrical_axis", params);
1196                         LOG_INFO("Waypoint editor: loaded symmetry ", ftos(sym), " with axis ", params);
1197                 }
1198                 else
1199                         LOG_INFO("Waypoint editor: loaded symmetry ", ftos(sym));
1200                 LOG_INFO(strcat("g_waypointeditor_symmetrical", " has been set to ", cvar_string("g_waypointeditor_symmetrical")));
1201         }
1202
1203         return cwp + cwb;
1204 }
1205
1206 #define waypoint_fixorigin(position, tracetest_ent) \
1207         waypoint_fixorigin_down_dir(position, tracetest_ent, '0 0 -1')
1208
1209 vector waypoint_fixorigin_down_dir(vector position, entity tracetest_ent, vector down_dir)
1210 {
1211         tracebox(position + '0 0 1', PL_MIN_CONST, PL_MAX_CONST, position + down_dir * 3000, MOVE_NOMONSTERS, tracetest_ent);
1212         if(trace_startsolid)
1213                 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);
1214         if(trace_startsolid)
1215                 tracebox(position + '0 0 1' * (1 - PL_MIN_CONST.z), PL_MIN_CONST, PL_MAX_CONST, position + down_dir * 3000, MOVE_NOMONSTERS, tracetest_ent);
1216         if(trace_fraction < 1)
1217                 position = trace_endpos;
1218         return position;
1219 }
1220
1221 void waypoint_spawnforitem_force(entity e, vector org)
1222 {
1223         // Fix the waypoint altitude if necessary
1224         org = waypoint_fixorigin(org, NULL);
1225
1226         // don't spawn an item spawnfunc_waypoint if it already exists
1227         IL_EACH(g_waypoints, true,
1228         {
1229                 if(it.wpisbox)
1230                 {
1231                         if(boxesoverlap(org, org, it.absmin, it.absmax))
1232                         {
1233                                 e.nearestwaypoint = it;
1234                                 return;
1235                         }
1236                 }
1237                 else
1238                 {
1239                         if(vdist(it.origin - org, <, 16))
1240                         {
1241                                 e.nearestwaypoint = it;
1242                                 return;
1243                         }
1244                 }
1245         });
1246
1247         e.nearestwaypoint = waypoint_spawn(org, org, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_ITEM);
1248 }
1249
1250 void waypoint_spawnforitem(entity e)
1251 {
1252         if(!bot_waypoints_for_items)
1253                 return;
1254
1255         waypoint_spawnforitem_force(e, e.origin);
1256 }
1257
1258 void waypoint_spawnforteleporter_boxes(entity e, int teleport_flag, vector org1, vector org2, vector destination1, vector destination2, float timetaken)
1259 {
1260         entity w;
1261         entity dw;
1262         w = waypoint_spawn(org1, org2, WAYPOINTFLAG_GENERATED | teleport_flag | WAYPOINTFLAG_NORELINK);
1263         dw = waypoint_spawn(destination1, destination2, WAYPOINTFLAG_GENERATED);
1264         // one way link to the destination
1265         w.wp00 = dw;
1266         w.wp00mincost = timetaken; // this is just for jump pads
1267         // the teleporter's nearest spawnfunc_waypoint is this one
1268         // (teleporters are not goals, so this is probably useless)
1269         e.nearestwaypoint = w;
1270         e.nearestwaypointtimeout = -1;
1271 }
1272
1273 void waypoint_spawnforteleporter_wz(entity e, vector org, vector destination, float timetaken, vector down_dir, entity tracetest_ent)
1274 {
1275         // warpzones with oblique warp plane rely on down_dir to snap waypoints
1276         // to the ground without leaving the warp plane
1277         // warpzones with horizontal warp plane (down_dir.x == -1) generate
1278         // destination waypoint snapped to the ground (leaving warpzone), source
1279         // waypoint in the center of the warp plane
1280         if(down_dir.x != -1)
1281                 org = waypoint_fixorigin_down_dir(org, tracetest_ent, down_dir);
1282         if(down_dir.x == -1)
1283                 down_dir = '0 0 -1';
1284         destination = waypoint_fixorigin_down_dir(destination, tracetest_ent, down_dir);
1285         waypoint_spawnforteleporter_boxes(e, WAYPOINTFLAG_TELEPORT, org, org, destination, destination, timetaken);
1286 }
1287
1288 void waypoint_spawnforteleporter(entity e, vector destination, float timetaken, entity tracetest_ent)
1289 {
1290         destination = waypoint_fixorigin(destination, tracetest_ent);
1291         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);
1292 }
1293
1294 entity waypoint_spawnpersonal(entity this, vector position)
1295 {
1296         entity w;
1297
1298         // drop the waypoint to a proper location:
1299         //   first move it up by a player height
1300         //   then move it down to hit the floor with player bbox size
1301         position = waypoint_fixorigin(position, this);
1302
1303         w = waypoint_spawn(position, position, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_PERSONAL);
1304         w.nearestwaypoint = NULL;
1305         w.nearestwaypointtimeout = 0;
1306         w.owner = this;
1307
1308         waypoint_schedulerelink(w);
1309
1310         return w;
1311 }
1312
1313 void waypoint_showlink(entity wp1, entity wp2, int display_type)
1314 {
1315         if (!(wp1 && wp2))
1316                 return;
1317
1318         if (wp1.wphardwired && wp2.wphardwired)
1319                 te_beam(NULL, wp1.origin, wp2.origin);
1320         else if (display_type == 1)
1321                 te_lightning2(NULL, wp1.origin, wp2.origin);
1322 }
1323
1324 void waypoint_showlinks_to(entity wp, int display_type)
1325 {
1326         IL_EACH(g_waypoints, it != wp,
1327         {
1328                 if (waypoint_islinked(it, wp))
1329                         waypoint_showlink(it, wp, display_type);
1330         });
1331 }
1332
1333 void waypoint_showlinks_from(entity wp, int display_type)
1334 {
1335         waypoint_showlink(wp.wp00, wp, display_type); waypoint_showlink(wp.wp16, wp, display_type);
1336         waypoint_showlink(wp.wp01, wp, display_type); waypoint_showlink(wp.wp17, wp, display_type);
1337         waypoint_showlink(wp.wp02, wp, display_type); waypoint_showlink(wp.wp18, wp, display_type);
1338         waypoint_showlink(wp.wp03, wp, display_type); waypoint_showlink(wp.wp19, wp, display_type);
1339         waypoint_showlink(wp.wp04, wp, display_type); waypoint_showlink(wp.wp20, wp, display_type);
1340         waypoint_showlink(wp.wp05, wp, display_type); waypoint_showlink(wp.wp21, wp, display_type);
1341         waypoint_showlink(wp.wp06, wp, display_type); waypoint_showlink(wp.wp22, wp, display_type);
1342         waypoint_showlink(wp.wp07, wp, display_type); waypoint_showlink(wp.wp23, wp, display_type);
1343         waypoint_showlink(wp.wp08, wp, display_type); waypoint_showlink(wp.wp24, wp, display_type);
1344         waypoint_showlink(wp.wp09, wp, display_type); waypoint_showlink(wp.wp25, wp, display_type);
1345         waypoint_showlink(wp.wp10, wp, display_type); waypoint_showlink(wp.wp26, wp, display_type);
1346         waypoint_showlink(wp.wp11, wp, display_type); waypoint_showlink(wp.wp27, wp, display_type);
1347         waypoint_showlink(wp.wp12, wp, display_type); waypoint_showlink(wp.wp28, wp, display_type);
1348         waypoint_showlink(wp.wp13, wp, display_type); waypoint_showlink(wp.wp29, wp, display_type);
1349         waypoint_showlink(wp.wp14, wp, display_type); waypoint_showlink(wp.wp30, wp, display_type);
1350         waypoint_showlink(wp.wp15, wp, display_type); waypoint_showlink(wp.wp31, wp, display_type);
1351 }
1352
1353 void botframe_showwaypointlinks()
1354 {
1355         if (time < botframe_waypointeditorlightningtime)
1356                 return;
1357         botframe_waypointeditorlightningtime = time + 0.5;
1358         FOREACH_CLIENT(IS_PLAYER(it) && !it.isbot,
1359         {
1360                 int display_type = 0;
1361                 entity head = navigation_findnearestwaypoint(it, false);
1362                 it.nearestwaypoint = head; // mainly useful for debug
1363                 it.nearestwaypointtimeout = time + 2; // while I'm at it...
1364                 if (IS_ONGROUND(it) || it.waterlevel > WATERLEVEL_NONE)
1365                         display_type = 1; // default
1366                 else if(head && (head.wphardwired))
1367                         display_type = 2; // only hardwired
1368
1369                 if (display_type)
1370                 {
1371                         //navigation_testtracewalk = true;
1372                         //print("currently selected WP is ", etos(head), "\n");
1373                         //navigation_testtracewalk = false;
1374                         if (head)
1375                         {
1376                                 te_lightning2(NULL, head.origin, it.origin);
1377                                 if(PHYS_INPUT_BUTTON_CROUCH(it))
1378                                         waypoint_showlinks_to(head, display_type);
1379                                 else
1380                                         waypoint_showlinks_from(head, display_type);
1381                         }
1382                 }
1383         });
1384 }
1385
1386 float botframe_autowaypoints_fixdown(vector v)
1387 {
1388         tracebox(v, PL_MIN_CONST, PL_MAX_CONST, v + '0 0 -64', MOVE_NOMONSTERS, NULL);
1389         if(trace_fraction >= 1)
1390                 return 0;
1391         return 1;
1392 }
1393
1394 float botframe_autowaypoints_createwp(vector v, entity p, .entity fld, float f)
1395 {
1396         IL_EACH(g_waypoints, boxesoverlap(v - '32 32 32', v + '32 32 32', it.absmin, it.absmax),
1397         {
1398                 // if a matching spawnfunc_waypoint already exists, don't add a duplicate
1399                 return 0;
1400         });
1401
1402         waypoint_schedulerelink(p.(fld) = waypoint_spawn(v, v, f));
1403         return 1;
1404 }
1405
1406 // return value:
1407 //    1 = WP created
1408 //    0 = no action needed
1409 //   -1 = temp fail, try from world too
1410 //   -2 = permanent fail, do not retry
1411 float botframe_autowaypoints_fix_from(entity p, float walkfromwp, entity wp, .entity fld)
1412 {
1413         // make it possible to go from p to wp, if we can
1414         // if wp is NULL, nearest is chosen
1415
1416         entity w;
1417         vector porg;
1418         float t, tmin, tmax;
1419         vector o;
1420         vector save;
1421
1422         if(!botframe_autowaypoints_fixdown(p.origin))
1423                 return -2;
1424         porg = trace_endpos;
1425
1426         if(wp)
1427         {
1428                 // if any WP w fulfills wp -> w -> porg and w is closer than wp, then switch from wp to w
1429
1430                 // if wp -> porg, then OK
1431                 float maxdist;
1432                 if(navigation_waypoint_will_link(wp.origin, porg, p, porg, 0, wp.origin, 0, walkfromwp, 1050))
1433                 {
1434                         // we may find a better one
1435                         maxdist = vlen(wp.origin - porg);
1436                 }
1437                 else
1438                 {
1439                         // accept any "good"
1440                         maxdist = 2100;
1441                 }
1442
1443                 float bestdist = maxdist;
1444                 IL_EACH(g_waypoints, it != wp && !(it.wpflags & WAYPOINTFLAG_NORELINK),
1445                 {
1446                         float d = vlen(wp.origin - it.origin) + vlen(it.origin - porg);
1447                         if(d < bestdist)
1448                         if(navigation_waypoint_will_link(wp.origin, it.origin, p, it.origin, 0, wp.origin, 0, walkfromwp, 1050))
1449                         if(navigation_waypoint_will_link(it.origin, porg, p, porg, 0, it.origin, 0, walkfromwp, 1050))
1450                         {
1451                                 bestdist = d;
1452                                 p.(fld) = it;
1453                         }
1454                 });
1455                 if(bestdist < maxdist)
1456                 {
1457                         LOG_INFO("update chain to new nearest WP ", etos(p.(fld)));
1458                         return 0;
1459                 }
1460
1461                 if(bestdist < 2100)
1462                 {
1463                         // we know maxdist < 2100
1464                         // so wp -> porg is still valid
1465                         // all is good
1466                         p.(fld) = wp;
1467                         return 0;
1468                 }
1469
1470                 // otherwise, no existing WP can fix our issues
1471         }
1472         else
1473         {
1474                 save = p.origin;
1475                 setorigin(p, porg);
1476                 w = navigation_findnearestwaypoint(p, walkfromwp);
1477                 setorigin(p, save);
1478                 if(w)
1479                 {
1480                         p.(fld) = w;
1481                         return 0;
1482                 }
1483         }
1484
1485         tmin = 0;
1486         tmax = 1;
1487         for (;;)
1488         {
1489                 if(tmax - tmin < 0.001)
1490                 {
1491                         // did not get a good candidate
1492                         return -1;
1493                 }
1494
1495                 t = (tmin + tmax) * 0.5;
1496                 o = antilag_takebackorigin(p, CS(p), time - t);
1497                 if(!botframe_autowaypoints_fixdown(o))
1498                         return -2;
1499                 o = trace_endpos;
1500
1501                 if(wp)
1502                 {
1503                         if(!navigation_waypoint_will_link(wp.origin, o, p, o, 0, wp.origin, 0, walkfromwp, 1050))
1504                         {
1505                                 // we cannot walk from wp.origin to o
1506                                 // get closer to tmax
1507                                 tmin = t;
1508                                 continue;
1509                         }
1510                 }
1511                 else
1512                 {
1513                         save = p.origin;
1514                         setorigin(p, o);
1515                         w = navigation_findnearestwaypoint(p, walkfromwp);
1516                         setorigin(p, save);
1517                         if(!w)
1518                         {
1519                                 // we cannot walk from any WP to o
1520                                 // get closer to tmax
1521                                 tmin = t;
1522                                 continue;
1523                         }
1524                 }
1525
1526                 // if we get here, o is valid regarding waypoints
1527                 // check if o is connected right to the player
1528                 // we break if it succeeds, as that means o is a good waypoint location
1529                 if(navigation_waypoint_will_link(o, porg, p, porg, 0, o, 0, walkfromwp, 1050))
1530                         break;
1531
1532                 // o is no good, we need to get closer to the player
1533                 tmax = t;
1534         }
1535
1536         LOG_INFO("spawning a waypoint for connecting to ", etos(wp));
1537         botframe_autowaypoints_createwp(o, p, fld, 0);
1538         return 1;
1539 }
1540
1541 // automatically create missing waypoints
1542 .entity botframe_autowaypoints_lastwp0, botframe_autowaypoints_lastwp1;
1543 void botframe_autowaypoints_fix(entity p, float walkfromwp, .entity fld)
1544 {
1545         float r = botframe_autowaypoints_fix_from(p, walkfromwp, p.(fld), fld);
1546         if(r != -1)
1547                 return;
1548         r = botframe_autowaypoints_fix_from(p, walkfromwp, NULL, fld);
1549         if(r != -1)
1550                 return;
1551
1552         LOG_INFO("emergency: got no good nearby WP to build a link from, starting a new chain");
1553         if(!botframe_autowaypoints_fixdown(p.origin))
1554                 return; // shouldn't happen, caught above
1555         botframe_autowaypoints_createwp(trace_endpos, p, fld, WAYPOINTFLAG_PROTECTED);
1556 }
1557
1558 void botframe_deleteuselesswaypoints()
1559 {
1560         IL_EACH(g_items, it.bot_pickup,
1561         {
1562                 // NOTE: this protects waypoints if they're the ONLY nearest
1563                 // waypoint. That's the intention.
1564                 navigation_findnearestwaypoint(it, false);  // Walk TO item.
1565                 navigation_findnearestwaypoint(it, true);  // Walk FROM item.
1566         });
1567         IL_EACH(g_waypoints, true,
1568         {
1569                 it.wpflags |= WAYPOINTFLAG_DEAD_END;
1570                 it.wpflags &= ~WAYPOINTFLAG_USEFUL;
1571                 // WP is useful if:
1572                 if (it.wpflags & WAYPOINTFLAG_ITEM)
1573                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1574                 if (it.wpflags & WAYPOINTFLAG_TELEPORT)
1575                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1576                 if (it.wpflags & WAYPOINTFLAG_LADDER)
1577                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1578                 if (it.wpflags & WAYPOINTFLAG_PROTECTED)
1579                         it.wpflags |= WAYPOINTFLAG_USEFUL;
1580                 // b) WP is closest WP for an item/spawnpoint/other entity
1581                 //    This has been done above by protecting these WPs.
1582         });
1583         // c) There are w1, w, w2 so that w1 -> w, w -> w2 and not w1 -> w2.
1584         IL_EACH(g_waypoints, !(it.wpflags & WAYPOINTFLAG_PERSONAL),
1585         {
1586                 for (int m = 0; m < 32; ++m)
1587                 {
1588                         entity w = waypoint_get_link(it, m);
1589                         if (!w)
1590                                 break;
1591                         if (w.wpflags & WAYPOINTFLAG_PERSONAL)
1592                                 continue;
1593                         if (w.wpflags & WAYPOINTFLAG_USEFUL)
1594                                 continue;
1595                         for (int j = 0; j < 32; ++j)
1596                         {
1597                                 entity w2 = waypoint_get_link(w, j);
1598                                 if (!w2)
1599                                         break;
1600                                 if (it == w2)
1601                                         continue;
1602                                 if (w2.wpflags & WAYPOINTFLAG_PERSONAL)
1603                                         continue;
1604                                 // If we got here, it != w2 exist with it -> w
1605                                 // and w -> w2. That means the waypoint is not
1606                                 // a dead end.
1607                                 w.wpflags &= ~WAYPOINTFLAG_DEAD_END;
1608                                 for (int k = 0; k < 32; ++k)
1609                                 {
1610                                         if (waypoint_get_link(it, k) == w2)
1611                                                 continue;
1612                                         // IF WE GET HERE, w is proven useful
1613                                         // to get from it to w2!
1614                                         w.wpflags |= WAYPOINTFLAG_USEFUL;
1615                                         goto next;
1616                                 }
1617                         }
1618 LABEL(next)
1619                 }
1620         });
1621         // d) The waypoint is a dead end. Dead end waypoints must be kept as
1622         //     they are needed to complete routes while autowaypointing.
1623
1624         IL_EACH(g_waypoints, !(it.wpflags & (WAYPOINTFLAG_USEFUL | WAYPOINTFLAG_DEAD_END)),
1625         {
1626                 LOG_INFOF("Removed a waypoint at %v. Try again for more!", it.origin);
1627                 te_explosion(it.origin);
1628                 waypoint_remove(it);
1629                 break;
1630         });
1631
1632         IL_EACH(g_waypoints, true,
1633         {
1634                 it.wpflags &= ~(WAYPOINTFLAG_USEFUL | WAYPOINTFLAG_DEAD_END); // temp flag
1635         });
1636 }
1637
1638 void botframe_autowaypoints()
1639 {
1640         FOREACH_CLIENT(IS_PLAYER(it) && IS_REAL_CLIENT(it) && !IS_DEAD(it), {
1641                 // going back is broken, so only fix waypoints to walk TO the player
1642                 //botframe_autowaypoints_fix(p, false, botframe_autowaypoints_lastwp0);
1643                 botframe_autowaypoints_fix(it, true, botframe_autowaypoints_lastwp1);
1644                 //te_explosion(p.botframe_autowaypoints_lastwp0.origin);
1645         });
1646
1647         if (autocvar_g_waypointeditor_auto >= 2) {
1648                 botframe_deleteuselesswaypoints();
1649         }
1650 }
1651