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/debug.qh>
  16 #include <common/mapobjects/trigger/jumppads.qh>
  17 #include <common/net_linked.qh>
  18 #include <common/physics/player.qh>
  19
  20 #include <lib/warpzone/common.qh>
  21 #include <lib/warpzone/util_server.qh>
  22
  23 .entity spawnpointmodel;
  24 void waypoint_unreachable(entity pl)
  25 {
  26         IL_EACH(g_waypoints, true,
  27         {
  28                 it.colormod = '0.5 0.5 0.5';
  29                 it.effects &= ~(EF_NODEPTHTEST | EF_RED | EF_BLUE);
  30         });
  31
  32         entity e2 = navigation_findnearestwaypoint(pl, false);
  33         if(!e2)
  34         {
  35                 LOG_INFO("Can't find any waypoint nearby\n");
  36                 return;
  37         }
  38
  39         navigation_markroutes(pl, e2);
  40
  41         int j = 0;
  42         int m = 0;
  43         IL_EACH(g_waypoints, it.wpcost >= 10000000,
  44         {
  45                 LOG_INFO("unreachable: ", etos(it), " ", vtos(it.origin), "\n");
  46                 it.colormod_z = 8;
  47                 it.effects |= EF_NODEPTHTEST | EF_BLUE;
  48                 j++;
  49                 m++;
  50         });
  51         if (j) LOG_INFOF("%d waypoints cannot be reached from here in any way (marked with blue light)\n", j);
  52         navigation_markroutes_inverted(e2);
  53
  54         j = 0;
  55         IL_EACH(g_waypoints, it.wpcost >= 10000000,
  56         {
  57                 LOG_INFO("cannot reach me: ", etos(it), " ", vtos(it.origin), "\n");
  58                 it.colormod_x = 8;
  59                 if (!(it.effects & EF_NODEPTHTEST))  // not already reported before
  60                         m++;
  61                 it.effects |= EF_NODEPTHTEST | EF_RED;
  62                 j++;
  63         });
  64         if (j) LOG_INFOF("%d waypoints cannot walk to here in any way (marked with red light)\n", j);
  65         if (m) LOG_INFOF("%d waypoints have been marked total\n", m);
  66
  67         j = 0;
  68         IL_EACH(g_spawnpoints, true,
  69         {
  70                 if (navigation_findnearestwaypoint(it, false))
  71                 {
  72                         if(it.spawnpointmodel)
  73                         {
  74                                 delete(it.spawnpointmodel);
  75                                 it.spawnpointmodel = NULL;
  76                         }
  77                 }
  78                 else
  79                 {
  80                         if(!it.spawnpointmodel)
  81                         {
  82                                 tracebox(it.origin, PL_MIN_CONST, PL_MAX_CONST, it.origin - '0 0 512', MOVE_NOMONSTERS, NULL);
  83                                 entity e = new(spawnpointmodel);
  84                                 vector org = trace_endpos + eZ;
  85                                 setorigin(e, org);
  86                                 e.solid = SOLID_TRIGGER;
  87                                 it.spawnpointmodel = e;
  88                         }
  89                         LOG_INFO("spawn without waypoint: ", etos(it), " ", vtos(it.origin), "\n");
  90                         it.spawnpointmodel.effects |= EF_NODEPTHTEST;
  91                         _setmodel(it.spawnpointmodel, pl.model);
  92                         it.spawnpointmodel.frame = pl.frame;
  93                         it.spawnpointmodel.skin = pl.skin;
  94                         it.spawnpointmodel.colormap = pl.colormap;
  95                         it.spawnpointmodel.colormod = pl.colormod;
  96                         it.spawnpointmodel.glowmod = pl.glowmod;
  97                         setsize(it.spawnpointmodel, PL_MIN_CONST, PL_MAX_CONST);
  98                         j++;
  99                 }
 100         });
 101         if (j) LOG_INFOF("%d spawnpoints have no nearest waypoint (marked by player model)\n", j);
 102
 103         j = 0;
 104         IL_EACH(g_items, true,
 105         {
 106                 it.effects &= ~(EF_NODEPTHTEST | EF_RED | EF_BLUE);
 107                 it.colormod = '0.5 0.5 0.5';
 108         });
 109         IL_EACH(g_items, true,
 110         {
 111                 if (navigation_findnearestwaypoint(it, false))
 112                         continue;
 113                 LOG_INFO("item without waypoint: ", etos(it), " ", vtos(it.origin), "\n");
 114                 it.effects |= EF_NODEPTHTEST | EF_RED;
 115                 it.colormod_x = 8;
 116                 j++;
 117         });
 118         if (j) LOG_INFOF("%d items have no nearest waypoint and cannot be walked away from (marked with red light)\n", j);
 119
 120         j = 0;
 121         IL_EACH(g_items, true,
 122         {
 123                 if (navigation_findnearestwaypoint(it, true))
 124                         continue;
 125                 LOG_INFO("item without waypoint: ", etos(it), " ", vtos(it.origin), "\n");
 126                 it.effects |= EF_NODEPTHTEST | EF_BLUE;
 127                 it.colormod_z = 8;
 128                 j++;
 129         });
 130         if (j) LOG_INFOF("%d items have no nearest waypoint and cannot be walked to (marked with blue light)\n", j);
 131 }
 132
 133 void waypoint_getSymmetricalAxis_cmd(entity caller, bool save, int arg_idx)
 134 {
 135         vector v1 = stov(argv(arg_idx++));
 136         vector v2 = stov(argv(arg_idx++));
 137         vector mid = (v1 + v2) / 2;
 138
 139         float diffy = (v2.y - v1.y);
 140         float diffx = (v2.x - v1.x);
 141         if (v1.y == v2.y)
 142                 diffy = 0.000001;
 143         if (v1.x == v2.x)
 144                 diffx = 0.000001;
 145         float m = - diffx / diffy;
 146         float q = - m * mid.x + mid.y;
 147         if (fabs(m) <= 0.000001) m = 0;
 148         if (fabs(q) <= 0.000001) q = 0;
 149
 150         string axis_str =  strcat(ftos(m), " ", ftos(q));
 151         if (save)
 152                 cvar_set("g_waypointeditor_symmetrical_axis", axis_str);
 153         axis_str = strcat("\"", axis_str, "\"");
 154         sprint(caller, strcat("Axis of symmetry based on input points: ", axis_str, "\n"));
 155         if (save)
 156                 sprint(caller, sprintf(" ^3saved to %s\n", "g_waypointeditor_symmetrical_axis"));
 157         if (save)
 158         {
 159                 cvar_set("g_waypointeditor_symmetrical", "-2");
 160                 sprint(caller, strcat("g_waypointeditor_symmetrical", " has been set to ",
 161                         cvar_string("g_waypointeditor_symmetrical"), "\n"));
 162         }
 163 }
 164
 165 void waypoint_getSymmetricalOrigin_cmd(entity caller, bool save, int arg_idx)
 166 {
 167         vector org = '0 0 0';
 168         int ctf_flags = 0;
 169         for (int i = 0; i < 6; i++)
 170         {
 171                 if (argv(arg_idx + i) != "")
 172                         ctf_flags++;
 173         }
 174         if (ctf_flags < 2)
 175         {
 176                 ctf_flags = 0;
 177                 org = vec2(havocbot_middlepoint);
 178                 if (argv(arg_idx) != "")
 179                         sprint(caller, "WARNING: Ignoring single input point\n");
 180                 if (havocbot_middlepoint_radius == 0)
 181                 {
 182                         sprint(caller, "Origin of symmetry can't be automatically determined\n");
 183                         return;
 184                 }
 185         }
 186         else
 187         {
 188                 vector v1, v2, v3, v4, v5, v6;
 189                 for (int i = 1; i <= ctf_flags; i++)
 190                 {
 191                         if (i == 1) { v1 = stov(argv(arg_idx++)); org = v1 / ctf_flags; }
 192                         else if (i == 2) { v2 = stov(argv(arg_idx++)); org += v2 / ctf_flags; }
 193                         else if (i == 3) { v3 = stov(argv(arg_idx++)); org += v3 / ctf_flags; }
 194                         else if (i == 4) { v4 = stov(argv(arg_idx++)); org += v4 / ctf_flags; }
 195                         else if (i == 5) { v5 = stov(argv(arg_idx++)); org += v5 / ctf_flags; }
 196                         else if (i == 6) { v6 = stov(argv(arg_idx++)); org += v6 / ctf_flags; }
 197                 }
 198         }
 199
 200         if (fabs(org.x) <= 0.000001) org.x = 0;
 201         if (fabs(org.y) <= 0.000001) org.y = 0;
 202         string org_str = strcat(ftos(org.x), " ", ftos(org.y));
 203         if (save)
 204         {
 205                 cvar_set("g_waypointeditor_symmetrical_origin", org_str);
 206                 cvar_set("g_waypointeditor_symmetrical_order", ftos(ctf_flags));
 207         }
 208         org_str = strcat("\"", org_str, "\"");
 209
 210         if (ctf_flags < 2)
 211                 sprint(caller, strcat("Origin of symmetry based on flag positions: ", org_str, "\n"));
 212         else
 213                 sprint(caller, strcat("Origin of symmetry based on input points: ", org_str, "\n"));
 214         if (save)
 215                 sprint(caller, sprintf(" ^3saved to %s\n", "g_waypointeditor_symmetrical_origin"));
 216
 217         if (ctf_flags < 2)
 218                 sprint(caller, "Order of symmetry: 0 (autodetected)\n");
 219         else
 220                 sprint(caller, strcat("Order of symmetry: ", ftos(ctf_flags), "\n"));
 221         if (save)
 222                 sprint(caller, sprintf(" ^3saved to %s\n", "g_waypointeditor_symmetrical_order"));
 223
 224         if (save)
 225         {
 226                 if (ctf_flags < 2)
 227                         cvar_set("g_waypointeditor_symmetrical", "0");
 228                 else
 229                         cvar_set("g_waypointeditor_symmetrical", "-1");
 230                 sprint(caller, strcat("g_waypointeditor_symmetrical", " has been set to ",
 231                         cvar_string("g_waypointeditor_symmetrical"), "\n"));
 232         }
 233 }
 234
 235 vector waypoint_getSymmetricalPoint(vector org, int ctf_flags)
 236 {
 237         vector new_org = org;
 238         if (fabs(autocvar_g_waypointeditor_symmetrical) == 1)
 239         {
 240                 vector map_center = havocbot_middlepoint;
 241                 if (autocvar_g_waypointeditor_symmetrical == -1)
 242                         map_center = autocvar_g_waypointeditor_symmetrical_origin;
 243
 244                 new_org = Rotate(org - map_center, 360 * DEG2RAD / ctf_flags) + map_center;
 245         }
 246         else if (fabs(autocvar_g_waypointeditor_symmetrical) == 2)
 247         {
 248                 float m = havocbot_symmetry_axis_m;
 249                 float q = havocbot_symmetry_axis_q;
 250                 if (autocvar_g_waypointeditor_symmetrical == -2)
 251                 {
 252                         m = autocvar_g_waypointeditor_symmetrical_axis.x;
 253                         q = autocvar_g_waypointeditor_symmetrical_axis.y;
 254                 }
 255
 256                 new_org.x = (1 / (1 + m*m)) * ((1 - m*m) * org.x + 2 * m * org.y - 2 * m * q);
 257                 new_org.y = (1 / (1 + m*m)) * (2 * m * org.x + (m*m - 1) * org.y + 2 * q);
 258         }
 259         new_org.z = org.z;
 260         return new_org;
 261 }
 262
 263 bool waypoint_has_hardwiredlinks(entity wp)
 264 {
 265         if (!wp)
 266                 return false;
 267         return (wp.wphw00 != NULL);
 268 }
 269
 270 bool waypoint_is_hardwiredlink(entity wp_from, entity wp_to)
 271 {
 272         if (!(wp_from && wp_to))
 273                 return false;
 274
 275         if (!wp_from.wphw00) return false; else if (wp_from.wphw00 == wp_to) return true;
 276         if (!wp_from.wphw01) return false; else if (wp_from.wphw01 == wp_to) return true;
 277         if (!wp_from.wphw02) return false; else if (wp_from.wphw02 == wp_to) return true;
 278         if (!wp_from.wphw03) return false; else if (wp_from.wphw03 == wp_to) return true;
 279         if (!wp_from.wphw04) return false; else if (wp_from.wphw04 == wp_to) return true;
 280         if (!wp_from.wphw05) return false; else if (wp_from.wphw05 == wp_to) return true;
 281         if (!wp_from.wphw06) return false; else if (wp_from.wphw06 == wp_to) return true;
 282         if (!wp_from.wphw07) return false; else if (wp_from.wphw07 == wp_to) return true;
 283
 284         return false;
 285 }
 286
 287 void waypoint_setupmodel(entity wp);
 288 void waypoint_mark_hardwiredlink(entity wp_from, entity wp_to)
 289 {
 290         if (!(wp_from && wp_to))
 291                 return;
 292
 293         if (!wp_from.wphw00 || wp_from.wphw00 == wp_to) { wp_from.wphw00 = wp_to; waypoint_setupmodel(wp_from); return; }
 294         if (!wp_from.wphw01 || wp_from.wphw01 == wp_to) { wp_from.wphw01 = wp_to; return; }
 295         if (!wp_from.wphw02 || wp_from.wphw02 == wp_to) { wp_from.wphw02 = wp_to; return; }
 296         if (!wp_from.wphw03 || wp_from.wphw03 == wp_to) { wp_from.wphw03 = wp_to; return; }
 297         if (!wp_from.wphw04 || wp_from.wphw04 == wp_to) { wp_from.wphw04 = wp_to; return; }
 298         if (!wp_from.wphw05 || wp_from.wphw05 == wp_to) { wp_from.wphw05 = wp_to; return; }
 299         if (!wp_from.wphw06 || wp_from.wphw06 == wp_to) { wp_from.wphw06 = wp_to; return; }
 300         if (!wp_from.wphw07 || wp_from.wphw07 == wp_to) { wp_from.wphw07 = wp_to; return; }
 301
 302         return;
 303 }
 304
 305 void waypoint_unmark_hardwiredlink(entity wp_from, entity wp_to)
 306 {
 307         if (!(wp_from && wp_to))
 308                 return;
 309
 310         int removed = -1;
 311         if (removed < 0 && wp_from.wphw00 == wp_to) removed = 0;
 312         if (removed < 0 && wp_from.wphw01 == wp_to) removed = 1;
 313         if (removed < 0 && wp_from.wphw02 == wp_to) removed = 2;
 314         if (removed < 0 && wp_from.wphw03 == wp_to) removed = 3;
 315         if (removed < 0 && wp_from.wphw04 == wp_to) removed = 4;
 316         if (removed < 0 && wp_from.wphw05 == wp_to) removed = 5;
 317         if (removed < 0 && wp_from.wphw06 == wp_to) removed = 6;
 318         if (removed < 0 && wp_from.wphw07 == wp_to) removed = 7;
 319
 320         if (removed >= 0)
 321         {
 322                 if (removed <= 0) wp_from.wphw00 = wp_from.wphw01;
 323                 if (removed <= 1) wp_from.wphw01 = wp_from.wphw02;
 324                 if (removed <= 2) wp_from.wphw02 = wp_from.wphw03;
 325                 if (removed <= 3) wp_from.wphw03 = wp_from.wphw04;
 326                 if (removed <= 4) wp_from.wphw04 = wp_from.wphw05;
 327                 if (removed <= 5) wp_from.wphw05 = wp_from.wphw06;
 328                 if (removed <= 6) wp_from.wphw06 = wp_from.wphw07;
 329                 if (removed <= 7) wp_from.wphw07 = NULL;
 330                 if (!wp_from.wphw00)
 331                         waypoint_setupmodel(wp_from);
 332         }
 333
 334         return;
 335 }
 336
 337 void waypoint_setupmodel(entity wp)
 338 {
 339         if (autocvar_g_waypointeditor)
 340         {
 341                 // TODO: add some sort of visible box in edit mode for box waypoints
 342                 vector m1 = wp.mins;
 343                 vector m2 = wp.maxs;
 344                 setmodel(wp, MDL_WAYPOINT);
 345                 setsize(wp, m1, m2);
 346                 wp.effects = EF_LOWPRECISION;
 347                 if (wp.wpflags & WAYPOINTFLAG_ITEM)
 348                         wp.colormod = '1 0 0';
 349                 else if (wp.wpflags & WAYPOINTFLAG_GENERATED)
 350                         wp.colormod = '1 1 0';
 351                 else if (wp.wpflags & WAYPOINTFLAG_NORELINK)
 352                         wp.colormod = '1 0.5 0'; // orange
 353                 else if (waypoint_has_hardwiredlinks(wp))
 354                         wp.colormod = '0.5 0 1'; // violet
 355                 else
 356                         wp.colormod = '1 1 1';
 357         }
 358         else
 359                 wp.model = "";
 360 }
 361
 362 entity waypoint_get(vector m1, vector m2)
 363 {
 364         if (m1 == m2)
 365         {
 366                 m1 -= '8 8 8';
 367                 m2 += '8 8 8';
 368         }
 369         IL_EACH(g_waypoints, boxesoverlap(m1, m2, it.absmin, it.absmax), { return it; });
 370
 371         return NULL;
 372 }
 373
 374 entity waypoint_spawn(vector m1, vector m2, float f)
 375 {
 376         if(!(f & (WAYPOINTFLAG_PERSONAL | WAYPOINTFLAG_GENERATED)) && m1 == m2)
 377         {
 378                 entity wp_found = waypoint_get(m1, m2);
 379                 if (wp_found)
 380                         return wp_found;
 381         }
 382         // spawn only one destination waypoint for teleports teleporting player to the exact same spot
 383         // otherwise links loaded from file would be applied only to the first destination
 384         // waypoint since link format doesn't specify waypoint entities but just positions
 385         if((f & WAYPOINTFLAG_GENERATED) && !(f & (WAYPOINTFLAG_NORELINK | WAYPOINTFLAG_PERSONAL)) && m1 == m2)
 386         {
 387                 IL_EACH(g_waypoints, boxesoverlap(m1, m2, it.absmin, it.absmax),
 388                 {
 389                         return it;
 390                 });
 391         }
 392
 393         entity w = new(waypoint);
 394         IL_PUSH(g_waypoints, w);
 395         w.dphitcontentsmask = DPCONTENTS_SOLID | DPCONTENTS_BODY | DPCONTENTS_PLAYERCLIP | DPCONTENTS_BOTCLIP;
 396         w.wpflags = f;
 397         w.solid = SOLID_TRIGGER;
 398         setorigin(w, (m1 + m2) * 0.5);
 399         setsize(w, m1 - w.origin, m2 - w.origin);
 400         if (w.size)
 401                 w.wpisbox = true;
 402
 403         if(!w.wpisbox)
 404         {
 405                 setsize(w, PL_MIN_CONST - '1 1 0', PL_MAX_CONST + '1 1 0');
 406                 if(!move_out_of_solid(w))
 407                 {
 408                         if(!(f & WAYPOINTFLAG_GENERATED))
 409                         {
 410                                 LOG_TRACE("Killed a waypoint that was stuck in solid at ", vtos(w.origin));
 411                                 delete(w);
 412                                 return NULL;
 413                         }
 414                         else
 415                         {
 416                                 if(autocvar_developer)
 417                                 {
 418                                         LOG_INFO("A generated waypoint is stuck in solid at ", vtos(w.origin));
 419                                         backtrace("Waypoint stuck");
 420                                 }
 421                         }
 422                 }
 423                 setsize(w, '0 0 0', '0 0 0');
 424         }
 425
 426         waypoint_clearlinks(w);
 427         //waypoint_schedulerelink(w);
 428
 429         waypoint_setupmodel(w);
 430
 431         return w;
 432 }
 433
 434 float trigger_push_get_push_time(entity this, vector endpos);
 435 void waypoint_addlink_for_custom_jumppad(entity wp_from, entity wp_to)
 436 {
 437         entity jp = NULL;
 438         IL_EACH(g_jumppads, boxesoverlap(wp_from.absmin, wp_from.absmax, it.absmin, it.absmax),
 439         {
 440                 jp = it;
 441                 break;
 442         });
 443         if (!jp)
 444                 return;
 445
 446         float cost = trigger_push_get_push_time(jp, wp_to.origin);
 447         wp_from.wp00 = wp_to;
 448         wp_from.wp00mincost = cost;
 449         jp.nearestwaypoint = wp_from;
 450         jp.nearestwaypointtimeout = -1;
 451 }
 452
 453 bool start_wp_is_spawned;
 454 vector start_wp_origin;
 455
 456 void waypoint_clear_start_wp(entity pl, bool warn)
 457 {
 458         start_wp_is_spawned = false;
 459         start_wp_origin = '0 0 0';
 460         pl.wp_locked = NULL;
 461         if (warn)
 462                 LOG_INFO("^xf80Start waypoint has been cleared.\n");
 463 }
 464
 465 void waypoint_spawn_fromeditor(entity pl, bool at_crosshair, bool is_jump_wp)
 466 {
 467         if (WAYPOINT_VERSION < waypoint_version_loaded)
 468         {
 469                 LOG_INFOF("^1Editing waypoints with a higher version number (%f) is not allowed.\n"
 470                         "Update Xonotic to make them editable.", waypoint_version_loaded);
 471                 return;
 472         }
 473
 474         entity e = NULL, jp = NULL;
 475         vector org = pl.origin;
 476         if (at_crosshair)
 477         {
 478                 crosshair_trace(pl);
 479                 org = trace_endpos - eZ * PL_MIN_CONST.z;
 480                 IL_EACH(g_jumppads, boxesoverlap(org + PL_MIN_CONST, org + PL_MAX_CONST, it.absmin, it.absmax),
 481                 {
 482                         jp = it;
 483                         break;
 484                 });
 485         }
 486         if (jp || is_jump_wp)
 487         {
 488                 if (start_wp_is_spawned)
 489                         start_wp_is_spawned = false;
 490                 LOG_INFO("^xf80Spawning start waypoint...\n");
 491         }
 492         int ctf_flags = havocbot_symmetry_origin_order;
 493         bool sym = ((autocvar_g_waypointeditor_symmetrical > 0 && ctf_flags >= 2)
 494                    || (autocvar_g_waypointeditor_symmetrical < 0));
 495         if(autocvar_g_waypointeditor_symmetrical_order >= 2)
 496                 ctf_flags = autocvar_g_waypointeditor_symmetrical_order;
 497         if (sym && ctf_flags < 2)
 498                 ctf_flags = 2;
 499         int wp_num = ctf_flags;
 500
 501         if(!PHYS_INPUT_BUTTON_CROUCH(pl) && !at_crosshair && !is_jump_wp)
 502         {
 503                 // snap waypoint to item's origin if close enough
 504                 IL_EACH(g_items, true,
 505                 {
 506                         vector item_org = (it.absmin + it.absmax) * 0.5;
 507                         item_org.z = it.absmin.z - PL_MIN_CONST.z;
 508                         if (vlen(item_org - org) < 20)
 509                         {
 510                                 org = item_org;
 511                                 break;
 512                         }
 513                 });
 514         }
 515
 516         vector start_org = '0 0 0';
 517         if (start_wp_is_spawned)
 518         {
 519                 LOG_INFO("^xf80Spawning destination waypoint...\n");
 520                 start_org = start_wp_origin;
 521         }
 522
 523         // save org as it can be modified spawning symmetrycal waypoints
 524         vector initial_origin = '0 0 0';
 525         bool initial_origin_is_set = false;
 526
 527         LABEL(add_wp);
 528
 529         if (jp)
 530         {
 531                 e = NULL;
 532                 IL_EACH(g_waypoints, it.wpflags & WAYPOINTFLAG_NORELINK
 533                         && boxesoverlap(org + PL_MIN_CONST, org + PL_MAX_CONST, it.absmin, it.absmax),
 534                 {
 535                         e = it; break;
 536                 });
 537                 if (!e)
 538                         e = waypoint_spawn(jp.absmin - PL_MAX_CONST + '1 1 1', jp.absmax - PL_MIN_CONST + '-1 -1 -1', WAYPOINTFLAG_TELEPORT | WAYPOINTFLAG_NORELINK);
 539                 if (!pl.wp_locked)
 540                         pl.wp_locked = e;
 541         }
 542         else if (is_jump_wp)
 543         {
 544                 entity wp_found = waypoint_get(org, org);
 545                 if (wp_found && !(wp_found.wpflags & WAYPOINTFLAG_JUMP))
 546                 {
 547                         LOG_INFO("Error: can't spawn a jump waypoint over an existent waypoint of a different type\n");
 548                         return;
 549                 }
 550                 e = waypoint_spawn(org, org, WAYPOINTFLAG_JUMP | WAYPOINTFLAG_NORELINK);
 551                 if (!pl.wp_locked)
 552                         pl.wp_locked = e;
 553         }
 554         else
 555                 e = waypoint_spawn(org, org, 0);
 556         if(!e)
 557         {
 558                 LOG_INFOF("Couldn't spawn waypoint at %v\n", org);
 559                 if (start_wp_is_spawned)
 560                         waypoint_clear_start_wp(pl, true);
 561                 return;
 562         }
 563
 564         if (!initial_origin_is_set)
 565         {
 566                 initial_origin = e.origin;
 567                 initial_origin_is_set = true;
 568         }
 569
 570         entity start_wp = NULL;
 571         if (start_wp_is_spawned)
 572         {
 573                 IL_EACH(g_waypoints, it.wpflags & WAYPOINTFLAG_NORELINK
 574                         && boxesoverlap(start_org, start_org, it.absmin, it.absmax),
 575                 {
 576                         start_wp = it; break;
 577                 });
 578                 if(!start_wp)
 579                 {
 580                         // should not happen
 581                         LOG_INFOF("Couldn't find start waypoint at %v\n", start_org);
 582                         waypoint_clear_start_wp(pl, true);
 583                         return;
 584                 }
 585                 waypoint_addlink(start_wp, e);
 586         }
 587
 588         if (!(jp || is_jump_wp))
 589                 waypoint_schedulerelink(e);
 590         bprint(strcat("Waypoint spawned at ", vtos(e.origin), "\n"));
 591
 592         if (start_wp_is_spawned)
 593         {
 594                 pl.wp_locked = NULL;
 595                 waypoint_schedulerelink(start_wp);
 596                 if (start_wp.wpflags & WAYPOINTFLAG_TELEPORT)
 597                 {
 598                         if (start_wp.wp00_original == start_wp.wp00)
 599                                 start_wp.wpflags &= ~WAYPOINTFLAG_CUSTOM_JP;
 600                         else
 601                                 start_wp.wpflags |= WAYPOINTFLAG_CUSTOM_JP;
 602                 }
 603         }
 604
 605         if (sym)
 606         {
 607                 org = waypoint_getSymmetricalPoint(org, ctf_flags);
 608                 if (jp)
 609                 {
 610                         IL_EACH(g_jumppads, boxesoverlap(org + PL_MIN_CONST, org + PL_MAX_CONST, it.absmin, it.absmax),
 611                         {
 612                                 jp = it; break;
 613                         });
 614                 }
 615                 if (start_wp_is_spawned)
 616                         start_org = waypoint_getSymmetricalPoint(start_org, ctf_flags);
 617                 if (vdist(org - pl.origin, >, 32))
 618                 {
 619                         if(wp_num > 2)
 620                                 wp_num--;
 621                         else
 622                                 sym = false;
 623                         goto add_wp;
 624                 }
 625         }
 626         if (jp || is_jump_wp)
 627         {
 628                 if (!start_wp_is_spawned)
 629                 {
 630                         // we've just created a custom jumppad waypoint
 631                         // the next one created by the user will be the destination waypoint
 632                         start_wp_is_spawned = true;
 633                         start_wp_origin = initial_origin;
 634                 }
 635         }
 636         else if (start_wp_is_spawned)
 637         {
 638                 waypoint_clear_start_wp(pl, false);
 639         }
 640 }
 641
 642 void waypoint_remove(entity wp)
 643 {
 644         IL_EACH(g_waypoints, it != wp,
 645         {
 646                 if (waypoint_islinked(it, wp))
 647                 {
 648                         if (waypoint_is_hardwiredlink(it, wp))
 649                                 waypoint_unmark_hardwiredlink(it, wp);
 650                         waypoint_removelink(it, wp);
 651                 }
 652         });
 653         delete(wp);
 654 }
 655
 656 void waypoint_remove_fromeditor(entity pl)
 657 {
 658         if (WAYPOINT_VERSION < waypoint_version_loaded)
 659         {
 660                 LOG_INFOF("^1Editing waypoints with a higher version number (%f) is not allowed.\n"
 661                         "Update Xonotic to make them editable.", waypoint_version_loaded);
 662                 return;
 663         }
 664
 665         entity e = navigation_findnearestwaypoint(pl, false);
 666
 667         int ctf_flags = havocbot_symmetry_origin_order;
 668         bool sym = ((autocvar_g_waypointeditor_symmetrical > 0 && ctf_flags >= 2)
 669                    || (autocvar_g_waypointeditor_symmetrical < 0));
 670         if(autocvar_g_waypointeditor_symmetrical_order >= 2)
 671                 ctf_flags = autocvar_g_waypointeditor_symmetrical_order;
 672         if (sym && ctf_flags < 2)
 673                 ctf_flags = 2;
 674         int wp_num = ctf_flags;
 675
 676         LABEL(remove_wp);
 677         if (!e) return;
 678
 679         if (e.wpflags & WAYPOINTFLAG_GENERATED)
 680         {
 681                 if (start_wp_is_spawned)
 682                         waypoint_clear_start_wp(pl, true);
 683                 return;
 684         }
 685
 686         if (waypoint_has_hardwiredlinks(e))
 687         {
 688                 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");
 689                 return;
 690         }
 691
 692         entity wp_sym = NULL;
 693         if (sym)
 694         {
 695                 vector org = waypoint_getSymmetricalPoint(e.origin, ctf_flags);
 696                 FOREACH_ENTITY_CLASS("waypoint", !(it.wpflags & WAYPOINTFLAG_GENERATED), {
 697                         if(vdist(org - it.origin, <, 3))
 698                         {
 699                                 wp_sym = it;
 700                                 break;
 701                         }
 702                 });
 703         }
 704
 705         bprint(strcat("Waypoint removed at ", vtos(e.origin), "\n"));
 706         waypoint_remove(e);
 707
 708         if (sym && wp_sym)
 709         {
 710                 e = wp_sym;
 711                 if(wp_num > 2)
 712                         wp_num--;
 713                 else
 714                         sym = false;
 715                 goto remove_wp;
 716         }
 717
 718         if (start_wp_is_spawned)
 719                 waypoint_clear_start_wp(pl, true);
 720 }
 721
 722 void waypoint_removelink(entity from, entity to)
 723 {
 724         if (from == to || (from.wpflags & WAYPOINTFLAG_NORELINK && !(from.wpflags & WAYPOINTFLAG_JUMP)))
 725                 return;
 726
 727         entity fromwp31_prev = from.wp31;
 728
 729         switch (waypoint_getlinknum(from, to))
 730         {
 731                 // fallthrough all the way
 732                 case  0: from.wp00 = from.wp01; from.wp00mincost = from.wp01mincost;
 733                 case  1: from.wp01 = from.wp02; from.wp01mincost = from.wp02mincost;
 734                 case  2: from.wp02 = from.wp03; from.wp02mincost = from.wp03mincost;
 735                 case  3: from.wp03 = from.wp04; from.wp03mincost = from.wp04mincost;
 736                 case  4: from.wp04 = from.wp05; from.wp04mincost = from.wp05mincost;
 737                 case  5: from.wp05 = from.wp06; from.wp05mincost = from.wp06mincost;
 738                 case  6: from.wp06 = from.wp07; from.wp06mincost = from.wp07mincost;
 739                 case  7: from.wp07 = from.wp08; from.wp07mincost = from.wp08mincost;
 740                 case  8: from.wp08 = from.wp09; from.wp08mincost = from.wp09mincost;
 741                 case  9: from.wp09 = from.wp10; from.wp09mincost = from.wp10mincost;
 742                 case 10: from.wp10 = from.wp11; from.wp10mincost = from.wp11mincost;
 743                 case 11: from.wp11 = from.wp12; from.wp11mincost = from.wp12mincost;
 744                 case 12: from.wp12 = from.wp13; from.wp12mincost = from.wp13mincost;
 745                 case 13: from.wp13 = from.wp14; from.wp13mincost = from.wp14mincost;
 746                 case 14: from.wp14 = from.wp15; from.wp14mincost = from.wp15mincost;
 747                 case 15: from.wp15 = from.wp16; from.wp15mincost = from.wp16mincost;
 748                 case 16: from.wp16 = from.wp17; from.wp16mincost = from.wp17mincost;
 749                 case 17: from.wp17 = from.wp18; from.wp17mincost = from.wp18mincost;
 750                 case 18: from.wp18 = from.wp19; from.wp18mincost = from.wp19mincost;
 751                 case 19: from.wp19 = from.wp20; from.wp19mincost = from.wp20mincost;
 752                 case 20: from.wp20 = from.wp21; from.wp20mincost = from.wp21mincost;
 753                 case 21: from.wp21 = from.wp22; from.wp21mincost = from.wp22mincost;
 754                 case 22: from.wp22 = from.wp23; from.wp22mincost = from.wp23mincost;
 755                 case 23: from.wp23 = from.wp24; from.wp23mincost = from.wp24mincost;
 756                 case 24: from.wp24 = from.wp25; from.wp24mincost = from.wp25mincost;
 757                 case 25: from.wp25 = from.wp26; from.wp25mincost = from.wp26mincost;
 758                 case 26: from.wp26 = from.wp27; from.wp26mincost = from.wp27mincost;
 759                 case 27: from.wp27 = from.wp28; from.wp27mincost = from.wp28mincost;
 760                 case 28: from.wp28 = from.wp29; from.wp28mincost = from.wp29mincost;
 761                 case 29: from.wp29 = from.wp30; from.wp29mincost = from.wp30mincost;
 762                 case 30: from.wp30 = from.wp31; from.wp30mincost = from.wp31mincost;
 763                 case 31: from.wp31 = NULL; from.wp31mincost = 10000000;
 764         }
 765
 766         if (fromwp31_prev && !from.wp31)
 767                 waypoint_schedulerelink(from);
 768 }
 769
 770 int waypoint_getlinknum(entity from, entity to)
 771 {
 772         if (from.wp00 == to) return  0; if (from.wp01 == to) return  1; if (from.wp02 == to) return  2; if (from.wp03 == to) return  3;
 773         if (from.wp04 == to) return  4; if (from.wp05 == to) return  5; if (from.wp06 == to) return  6; if (from.wp07 == to) return  7;
 774         if (from.wp08 == to) return  8; if (from.wp09 == to) return  9; if (from.wp10 == to) return 10; if (from.wp11 == to) return 11;
 775         if (from.wp12 == to) return 12; if (from.wp13 == to) return 13; if (from.wp14 == to) return 14; if (from.wp15 == to) return 15;
 776         if (from.wp16 == to) return 16; if (from.wp17 == to) return 17; if (from.wp18 == to) return 18; if (from.wp19 == to) return 19;
 777         if (from.wp20 == to) return 20; if (from.wp21 == to) return 21; if (from.wp22 == to) return 22; if (from.wp23 == to) return 23;
 778         if (from.wp24 == to) return 24; if (from.wp25 == to) return 25; if (from.wp26 == to) return 26; if (from.wp27 == to) return 27;
 779         if (from.wp28 == to) return 28; if (from.wp29 == to) return 29; if (from.wp30 == to) return 30; if (from.wp31 == to) return 31;
 780         return -1;
 781 }
 782
 783 bool waypoint_islinked(entity from, entity to)
 784 {
 785         return (waypoint_getlinknum(from, to) >= 0);
 786 }
 787
 788 void waypoint_updatecost_foralllinks()
 789 {
 790         IL_EACH(g_waypoints, !(it.wpflags & WAYPOINTFLAG_TELEPORT),
 791         {
 792                 if(it.wp00) it.wp00mincost = waypoint_getlinkcost(it, it.wp00);
 793                 if(it.wp01) it.wp01mincost = waypoint_getlinkcost(it, it.wp01);
 794                 if(it.wp02) it.wp02mincost = waypoint_getlinkcost(it, it.wp02);
 795                 if(it.wp03) it.wp03mincost = waypoint_getlinkcost(it, it.wp03);
 796                 if(it.wp04) it.wp04mincost = waypoint_getlinkcost(it, it.wp04);
 797                 if(it.wp05) it.wp05mincost = waypoint_getlinkcost(it, it.wp05);
 798                 if(it.wp06) it.wp06mincost = waypoint_getlinkcost(it, it.wp06);
 799                 if(it.wp07) it.wp07mincost = waypoint_getlinkcost(it, it.wp07);
 800                 if(it.wp08) it.wp08mincost = waypoint_getlinkcost(it, it.wp08);
 801                 if(it.wp09) it.wp09mincost = waypoint_getlinkcost(it, it.wp09);
 802                 if(it.wp10) it.wp10mincost = waypoint_getlinkcost(it, it.wp10);
 803                 if(it.wp11) it.wp11mincost = waypoint_getlinkcost(it, it.wp11);
 804                 if(it.wp12) it.wp12mincost = waypoint_getlinkcost(it, it.wp12);
 805                 if(it.wp13) it.wp13mincost = waypoint_getlinkcost(it, it.wp13);
 806                 if(it.wp14) it.wp14mincost = waypoint_getlinkcost(it, it.wp14);
 807                 if(it.wp15) it.wp15mincost = waypoint_getlinkcost(it, it.wp15);
 808                 if(it.wp16) it.wp16mincost = waypoint_getlinkcost(it, it.wp16);
 809                 if(it.wp17) it.wp17mincost = waypoint_getlinkcost(it, it.wp17);
 810                 if(it.wp18) it.wp18mincost = waypoint_getlinkcost(it, it.wp18);
 811                 if(it.wp19) it.wp19mincost = waypoint_getlinkcost(it, it.wp19);
 812                 if(it.wp20) it.wp20mincost = waypoint_getlinkcost(it, it.wp20);
 813                 if(it.wp21) it.wp21mincost = waypoint_getlinkcost(it, it.wp21);
 814                 if(it.wp22) it.wp22mincost = waypoint_getlinkcost(it, it.wp22);
 815                 if(it.wp23) it.wp23mincost = waypoint_getlinkcost(it, it.wp23);
 816                 if(it.wp24) it.wp24mincost = waypoint_getlinkcost(it, it.wp24);
 817                 if(it.wp25) it.wp25mincost = waypoint_getlinkcost(it, it.wp25);
 818                 if(it.wp26) it.wp26mincost = waypoint_getlinkcost(it, it.wp26);
 819                 if(it.wp27) it.wp27mincost = waypoint_getlinkcost(it, it.wp27);
 820                 if(it.wp28) it.wp28mincost = waypoint_getlinkcost(it, it.wp28);
 821                 if(it.wp29) it.wp29mincost = waypoint_getlinkcost(it, it.wp29);
 822                 if(it.wp30) it.wp30mincost = waypoint_getlinkcost(it, it.wp30);
 823                 if(it.wp31) it.wp31mincost = waypoint_getlinkcost(it, it.wp31);
 824         });
 825 }
 826
 827 float waypoint_getlinearcost(float dist)
 828 {
 829         if(skill >= autocvar_bot_ai_bunnyhop_skilloffset)
 830                 return dist / (autocvar_sv_maxspeed * 1.25);
 831         return dist / autocvar_sv_maxspeed;
 832 }
 833 float waypoint_getlinearcost_underwater(float dist)
 834 {
 835         // NOTE: underwater speed factor is hardcoded in the engine too, see SV_WaterMove
 836         return dist / (autocvar_sv_maxspeed * 0.7);
 837 }
 838
 839 float waypoint_gettravelcost(vector from, vector to, entity from_ent, entity to_ent)
 840 {
 841         bool submerged_from = navigation_check_submerged_state(from_ent, from);
 842         bool submerged_to = navigation_check_submerged_state(to_ent, to);
 843
 844         if (submerged_from && submerged_to)
 845                 return waypoint_getlinearcost_underwater(vlen(to - from));
 846
 847         float c = waypoint_getlinearcost(vlen(to - from));
 848
 849         float height = from.z - to.z;
 850         if(height > jumpheight_vec.z && autocvar_sv_gravity > 0)
 851         {
 852                 float height_cost;
 853                 if (boolean(from_ent.wpflags & WAYPOINTFLAG_JUMP))
 854                         height_cost = jumpheight_time + sqrt((height + jumpheight_vec.z) / (autocvar_sv_gravity / 2));
 855                 else
 856                         height_cost = sqrt(height / (autocvar_sv_gravity / 2));
 857                 c = waypoint_getlinearcost(vlen(vec2(to - from))); // xy distance cost
 858                 if(height_cost > c)
 859                         c = height_cost;
 860         }
 861
 862         if (submerged_from || submerged_to)
 863                 return (c + waypoint_getlinearcost_underwater(vlen(to - from))) / 2;
 864         return c;
 865 }
 866
 867 float waypoint_getlinkcost(entity from, entity to)
 868 {
 869         vector v1 = from.origin;
 870         vector v2 = to.origin;
 871         if (from.wpisbox)
 872         {
 873                 vector m1 = from.absmin, m2 = from.absmax;
 874                 v1.x = bound(m1.x, v2.x, m2.x);
 875                 v1.y = bound(m1.y, v2.y, m2.y);
 876                 v1.z = bound(m1.z, v2.z, m2.z);
 877         }
 878         if (to.wpisbox)
 879         {
 880                 vector m1 = to.absmin, m2 = to.absmax;
 881                 v2.x = bound(m1.x, v1.x, m2.x);
 882                 v2.y = bound(m1.y, v1.y, m2.y);
 883                 v2.z = bound(m1.z, v1.z, m2.z);
 884         }
 885         return waypoint_gettravelcost(v1, v2, from, to);
 886 }
 887
 888 // add a new link to the spawnfunc_waypoint, replacing the furthest link it already has
 889 // if c == -1 automatically determine cost of the link
 890 void waypoint_addlink_customcost(entity from, entity to, float c)
 891 {
 892         if (from == to || waypoint_islinked(from, to))
 893                 return;
 894         if (c == -1 && (from.wpflags & WAYPOINTFLAG_NORELINK) && !(from.wpflags & WAYPOINTFLAG_JUMP))
 895                 return;
 896
 897         if(c == -1)
 898                 c = waypoint_getlinkcost(from, to);
 899
 900         if (from.wp31mincost < c) return;
 901         if (from.wp30mincost < c) {from.wp31 = to;from.wp31mincost = c;return;} from.wp31 = from.wp30;from.wp31mincost = from.wp30mincost;
 902         if (from.wp29mincost < c) {from.wp30 = to;from.wp30mincost = c;return;} from.wp30 = from.wp29;from.wp30mincost = from.wp29mincost;
 903         if (from.wp28mincost < c) {from.wp29 = to;from.wp29mincost = c;return;} from.wp29 = from.wp28;from.wp29mincost = from.wp28mincost;
 904         if (from.wp27mincost < c) {from.wp28 = to;from.wp28mincost = c;return;} from.wp28 = from.wp27;from.wp28mincost = from.wp27mincost;
 905         if (from.wp26mincost < c) {from.wp27 = to;from.wp27mincost = c;return;} from.wp27 = from.wp26;from.wp27mincost = from.wp26mincost;
 906         if (from.wp25mincost < c) {from.wp26 = to;from.wp26mincost = c;return;} from.wp26 = from.wp25;from.wp26mincost = from.wp25mincost;
 907         if (from.wp24mincost < c) {from.wp25 = to;from.wp25mincost = c;return;} from.wp25 = from.wp24;from.wp25mincost = from.wp24mincost;
 908         if (from.wp23mincost < c) {from.wp24 = to;from.wp24mincost = c;return;} from.wp24 = from.wp23;from.wp24mincost = from.wp23mincost;
 909         if (from.wp22mincost < c) {from.wp23 = to;from.wp23mincost = c;return;} from.wp23 = from.wp22;from.wp23mincost = from.wp22mincost;
 910         if (from.wp21mincost < c) {from.wp22 = to;from.wp22mincost = c;return;} from.wp22 = from.wp21;from.wp22mincost = from.wp21mincost;
 911         if (from.wp20mincost < c) {from.wp21 = to;from.wp21mincost = c;return;} from.wp21 = from.wp20;from.wp21mincost = from.wp20mincost;
 912         if (from.wp19mincost < c) {from.wp20 = to;from.wp20mincost = c;return;} from.wp20 = from.wp19;from.wp20mincost = from.wp19mincost;
 913         if (from.wp18mincost < c) {from.wp19 = to;from.wp19mincost = c;return;} from.wp19 = from.wp18;from.wp19mincost = from.wp18mincost;
 914         if (from.wp17mincost < c) {from.wp18 = to;from.wp18mincost = c;return;} from.wp18 = from.wp17;from.wp18mincost = from.wp17mincost;
 915         if (from.wp16mincost < c) {from.wp17 = to;from.wp17mincost = c;return;} from.wp17 = from.wp16;from.wp17mincost = from.wp16mincost;
 916         if (from.wp15mincost < c) {from.wp16 = to;from.wp16mincost = c;return;} from.wp16 = from.wp15;from.wp16mincost = from.wp15mincost;
 917         if (from.wp14mincost < c) {from.wp15 = to;from.wp15mincost = c;return;} from.wp15 = from.wp14;from.wp15mincost = from.wp14mincost;
 918         if (from.wp13mincost < c) {from.wp14 = to;from.wp14mincost = c;return;} from.wp14 = from.wp13;from.wp14mincost = from.wp13mincost;
 919         if (from.wp12mincost < c) {from.wp13 = to;from.wp13mincost = c;return;} from.wp13 = from.wp12;from.wp13mincost = from.wp12mincost;
 920         if (from.wp11mincost < c) {from.wp12 = to;from.wp12mincost = c;return;} from.wp12 = from.wp11;from.wp12mincost = from.wp11mincost;
 921         if (from.wp10mincost < c) {from.wp11 = to;from.wp11mincost = c;return;} from.wp11 = from.wp10;from.wp11mincost = from.wp10mincost;
 922         if (from.wp09mincost < c) {from.wp10 = to;from.wp10mincost = c;return;} from.wp10 = from.wp09;from.wp10mincost = from.wp09mincost;
 923         if (from.wp08mincost < c) {from.wp09 = to;from.wp09mincost = c;return;} from.wp09 = from.wp08;from.wp09mincost = from.wp08mincost;
 924         if (from.wp07mincost < c) {from.wp08 = to;from.wp08mincost = c;return;} from.wp08 = from.wp07;from.wp08mincost = from.wp07mincost;
 925         if (from.wp06mincost < c) {from.wp07 = to;from.wp07mincost = c;return;} from.wp07 = from.wp06;from.wp07mincost = from.wp06mincost;
 926         if (from.wp05mincost < c) {from.wp06 = to;from.wp06mincost = c;return;} from.wp06 = from.wp05;from.wp06mincost = from.wp05mincost;
 927         if (from.wp04mincost < c) {from.wp05 = to;from.wp05mincost = c;return;} from.wp05 = from.wp04;from.wp05mincost = from.wp04mincost;
 928         if (from.wp03mincost < c) {from.wp04 = to;from.wp04mincost = c;return;} from.wp04 = from.wp03;from.wp04mincost = from.wp03mincost;
 929         if (from.wp02mincost < c) {from.wp03 = to;from.wp03mincost = c;return;} from.wp03 = from.wp02;from.wp03mincost = from.wp02mincost;
 930         if (from.wp01mincost < c) {from.wp02 = to;from.wp02mincost = c;return;} from.wp02 = from.wp01;from.wp02mincost = from.wp01mincost;
 931         if (from.wp00mincost < c) {from.wp01 = to;from.wp01mincost = c;return;} from.wp01 = from.wp00;from.wp01mincost = from.wp00mincost;
 932         from.wp00 = to;from.wp00mincost = c;return;
 933 }
 934
 935 void waypoint_addlink(entity from, entity to)
 936 {
 937         if ((from.wpflags & WAYPOINTFLAG_NORELINK) && !(from.wpflags & (WAYPOINTFLAG_JUMP)))
 938                 waypoint_addlink_for_custom_jumppad(from, to);
 939         else
 940                 waypoint_addlink_customcost(from, to, -1);
 941 }
 942
 943 // relink this spawnfunc_waypoint
 944 // (precompile a list of all reachable waypoints from this spawnfunc_waypoint)
 945 // (SLOW!)
 946 void waypoint_think(entity this)
 947 {
 948         vector sv = '0 0 0', sv2 = '0 0 0', ev = '0 0 0', ev2 = '0 0 0', dv;
 949         float sv2_height = 0, ev2_height = 0;
 950
 951         bot_calculate_stepheightvec();
 952
 953         int dphitcontentsmask_save = this.dphitcontentsmask;
 954         this.dphitcontentsmask = DPCONTENTS_SOLID | DPCONTENTS_BODY | DPCONTENTS_PLAYERCLIP | DPCONTENTS_BOTCLIP;
 955
 956         bot_navigation_movemode = ((autocvar_bot_navigation_ignoreplayers) ? MOVE_NOMONSTERS : MOVE_NORMAL);
 957
 958         //dprint("waypoint_think wpisbox = ", ftos(this.wpisbox), "\n");
 959         IL_EACH(g_waypoints, this != it,
 960         {
 961                 if (boxesoverlap(this.absmin, this.absmax, it.absmin, it.absmax))
 962                 {
 963                         waypoint_addlink(this, it);
 964                         waypoint_addlink(it, this);
 965                 }
 966                 else
 967                 {
 968                         ++relink_total;
 969                         if(!checkpvs(this.origin, it))
 970                         {
 971                                 ++relink_pvsculled;
 972                                 continue;
 973                         }
 974
 975                         sv = set_tracewalk_dest_2(this, it.origin);
 976                         sv2 = tracewalk_dest;
 977                         sv2_height = tracewalk_dest_height;
 978                         ev = set_tracewalk_dest_2(it, this.origin);
 979                         ev2 = tracewalk_dest;
 980                         ev2_height = tracewalk_dest_height;
 981
 982                         dv = ev - sv;
 983                         dv.z = 0;
 984                         if(vdist(dv, >=, 1050)) // max search distance in XY
 985                         {
 986                                 ++relink_lengthculled;
 987                                 continue;
 988                         }
 989
 990                         navigation_testtracewalk = 0;
 991
 992                         //traceline(this.origin, it.origin, false, NULL);
 993                         //if (trace_fraction == 1)
 994                         if (this.wpisbox || this.wpflags & WAYPOINTFLAG_JUMP)
 995                                 relink_walkculled += 0.5;
 996                         else
 997                         {
 998                                 if (tracewalk(this, sv, PL_MIN_CONST, PL_MAX_CONST, ev2, ev2_height, MOVE_NOMONSTERS))
 999                                         waypoint_addlink(this, it);
1000                                 else
1001                                         relink_walkculled += 0.5;
1002                         }
1003
1004                         if (it.wpisbox || it.wpflags & WAYPOINTFLAG_JUMP)
1005                                 relink_walkculled += 0.5;
1006                         else
1007                         {
1008                                 if (tracewalk(this, ev, PL_MIN_CONST, PL_MAX_CONST, sv2, sv2_height, MOVE_NOMONSTERS))
1009                                         waypoint_addlink(it, this);
1010                                 else
1011                                         relink_walkculled += 0.5;
1012                         }
1013                 }
1014         });
1015         navigation_testtracewalk = 0;
1016         this.wplinked = true;
1017         this.dphitcontentsmask = dphitcontentsmask_save;
1018
1019         setthink(this, func_null);
1020         this.nextthink = 0;
1021 }
1022
1023 void waypoint_clearlinks(entity wp)
1024 {
1025         // clear links to other waypoints
1026         float f = 10000000;
1027         wp.wp00 = wp.wp01 = wp.wp02 = wp.wp03 = wp.wp04 = wp.wp05 = wp.wp06 = wp.wp07 = NULL;
1028         wp.wp08 = wp.wp09 = wp.wp10 = wp.wp11 = wp.wp12 = wp.wp13 = wp.wp14 = wp.wp15 = NULL;
1029         wp.wp16 = wp.wp17 = wp.wp18 = wp.wp19 = wp.wp20 = wp.wp21 = wp.wp22 = wp.wp23 = NULL;
1030         wp.wp24 = wp.wp25 = wp.wp26 = wp.wp27 = wp.wp28 = wp.wp29 = wp.wp30 = wp.wp31 = NULL;
1031
1032         wp.wp00mincost = wp.wp01mincost = wp.wp02mincost = wp.wp03mincost = wp.wp04mincost = wp.wp05mincost = wp.wp06mincost = wp.wp07mincost = f;
1033         wp.wp08mincost = wp.wp09mincost = wp.wp10mincost = wp.wp11mincost = wp.wp12mincost = wp.wp13mincost = wp.wp14mincost = wp.wp15mincost = f;
1034         wp.wp16mincost = wp.wp17mincost = wp.wp18mincost = wp.wp19mincost = wp.wp20mincost = wp.wp21mincost = wp.wp22mincost = wp.wp23mincost = f;
1035         wp.wp24mincost = wp.wp25mincost = wp.wp26mincost = wp.wp27mincost = wp.wp28mincost = wp.wp29mincost = wp.wp30mincost = wp.wp31mincost = f;
1036
1037         wp.wplinked = false;
1038 }
1039
1040 // tell a spawnfunc_waypoint to relink
1041 void waypoint_schedulerelink(entity wp)
1042 {
1043         if (wp == NULL)
1044                 return;
1045
1046         waypoint_setupmodel(wp);
1047         wp.wpisbox = vdist(wp.size, >, 0);
1048         wp.enemy = NULL;
1049         if (!(wp.wpflags & WAYPOINTFLAG_PERSONAL))
1050                 wp.owner = NULL;
1051         if (!(wp.wpflags & WAYPOINTFLAG_NORELINK))
1052                 waypoint_clearlinks(wp);
1053         // schedule an actual relink on next frame
1054         setthink(wp, waypoint_think);
1055         wp.nextthink = time;
1056         wp.effects = EF_LOWPRECISION;
1057 }
1058
1059 // spawnfunc_waypoint map entity
1060 spawnfunc(waypoint)
1061 {
1062         IL_PUSH(g_waypoints, this);
1063
1064         setorigin(this, this.origin);
1065         // schedule a relink after other waypoints have had a chance to spawn
1066         waypoint_clearlinks(this);
1067         //waypoint_schedulerelink(this);
1068 }
1069
1070 // tell all waypoints to relink
1071 // actually this is useful only to update relink_* stats
1072 void waypoint_schedulerelinkall()
1073 {
1074         relink_total = relink_walkculled = relink_pvsculled = relink_lengthculled = 0;
1075         IL_EACH(g_waypoints, true,
1076         {
1077                 waypoint_schedulerelink(it);
1078         });
1079         waypoint_load_hardwiredlinks();
1080 }
1081
1082 #define GET_GAMETYPE_EXTENSION() ((g_race) ? ".race" : "")
1083
1084 // Load waypoint links from file
1085 bool waypoint_load_links()
1086 {
1087         string s;
1088         float file, tokens, c = 0, found;
1089         entity wp_from = NULL, wp_to;
1090         vector wp_to_pos, wp_from_pos;
1091
1092         string gt_ext = GET_GAMETYPE_EXTENSION();
1093
1094         string filename = sprintf("maps/%s.waypoints.cache", strcat(mapname, gt_ext));
1095         file = fopen(filename, FILE_READ);
1096
1097         if (gt_ext != "" && file < 0)
1098         {
1099                 // if race waypoint file doesn't exist load the default one
1100                 filename = sprintf("maps/%s.waypoints.cache", mapname);
1101                 file = fopen(filename, FILE_READ);
1102         }
1103
1104         if (file < 0)
1105         {
1106                 LOG_TRACE("waypoint links load from ", filename, " failed");
1107                 waypoint_schedulerelinkall();
1108                 return false;
1109         }
1110
1111         bool parse_comments = true;
1112         float ver = 0;
1113         string links_time = string_null;
1114
1115         while ((s = fgets(file)))
1116         {
1117                 if(parse_comments)
1118                 {
1119                         if(substring(s, 0, 2) == "//")
1120                         {
1121                                 if(substring(s, 2, 17) == "WAYPOINT_VERSION ")
1122                                         ver = stof(substring(s, 19, -1));
1123                                 else if(substring(s, 2, 14) == "WAYPOINT_TIME ")
1124                                         links_time = substring(s, 16, -1);
1125                                 continue;
1126                         }
1127                         else
1128                         {
1129                                 if(ver < WAYPOINT_VERSION || links_time != waypoint_time)
1130                                 {
1131                                         if (links_time != waypoint_time)
1132                                                 LOG_TRACE("waypoint links for this map are not made for these waypoints.");
1133                                         else
1134                                                 LOG_TRACE("waypoint links for this map are outdated.");
1135                                         if (g_assault)
1136                                         {
1137                                                 LOG_TRACE("Assault waypoint links need to be manually updated in the editor");
1138                                         }
1139                                         else
1140                                         {
1141                                                 LOG_TRACE("automatically updating...");
1142                                                 waypoint_schedulerelinkall();
1143                                                 fclose(file);
1144                                                 return false;
1145                                         }
1146                                 }
1147                                 parse_comments = false;
1148                         }
1149                 }
1150
1151                 tokens = tokenizebyseparator(s, "*");
1152
1153                 if (tokens!=2)
1154                 {
1155                         // bad file format
1156                         fclose(file);
1157                         waypoint_schedulerelinkall(); // link all the autogenerated waypoints (teleporters)
1158                         return false;
1159                 }
1160
1161                 wp_from_pos     = stov(argv(0));
1162                 wp_to_pos       = stov(argv(1));
1163
1164                 // Search "from" waypoint
1165                 if(!wp_from || wp_from.origin!=wp_from_pos)
1166                 {
1167                         wp_from = findradius(wp_from_pos, 1);
1168                         found = false;
1169                         while(wp_from)
1170                         {
1171                                 if(vdist(wp_from.origin - wp_from_pos, <, 1))
1172                                 if(wp_from.classname == "waypoint")
1173                                 {
1174                                         found = true;
1175                                         break;
1176                                 }
1177                                 wp_from = wp_from.chain;
1178                         }
1179
1180                         if(!found)
1181                         {
1182                                 LOG_TRACE("waypoint_load_links: couldn't find 'from' waypoint at ", vtos(wp_from_pos));
1183                                 continue;
1184                         }
1185                 }
1186
1187                 // Search "to" waypoint
1188                 wp_to = findradius(wp_to_pos, 1);
1189                 found = false;
1190                 while(wp_to)
1191                 {
1192                         if(vdist(wp_to.origin - wp_to_pos, <, 1))
1193                         if(wp_to.classname == "waypoint")
1194                         {
1195                                 found = true;
1196                                 break;
1197                         }
1198                         wp_to = wp_to.chain;
1199                 }
1200
1201                 if(!found)
1202                 {
1203                         LOG_TRACE("waypoint_load_links: couldn't find 'to' waypoint at ", vtos(wp_to_pos));
1204                         continue;
1205                 }
1206
1207                 ++c;
1208                 waypoint_addlink(wp_from, wp_to);
1209                 if (wp_from.wp00_original && wp_from.wp00_original != wp_from.wp00)
1210                         wp_from.wpflags |= WAYPOINTFLAG_CUSTOM_JP;
1211         }
1212
1213         fclose(file);
1214
1215         LOG_TRACE("loaded ", ftos(c), " waypoint links from ", filename);
1216
1217         bool scheduled = false;
1218         IL_EACH(g_waypoints, it.wpflags & WAYPOINTFLAG_ITEM,
1219         {
1220                 if (!it.wp00)
1221                 {
1222                         waypoint_schedulerelink(it);
1223                         scheduled = true;
1224                 }
1225         });
1226         if (scheduled)
1227                 return false;
1228
1229         botframe_cachedwaypointlinks = true;
1230         return true;
1231 }
1232
1233
1234 void waypoint_remove_hardwiredlinks()
1235 {
1236         IL_EACH(g_waypoints, waypoint_has_hardwiredlinks(it),
1237         {
1238                 if (it.wphw00) { waypoint_removelink(it, it.wphw00); it.wphw00 = NULL; }
1239                 if (it.wphw01) { waypoint_removelink(it, it.wphw01); it.wphw01 = NULL; }
1240                 if (it.wphw02) { waypoint_removelink(it, it.wphw02); it.wphw02 = NULL; }
1241                 if (it.wphw03) { waypoint_removelink(it, it.wphw03); it.wphw03 = NULL; }
1242                 if (it.wphw04) { waypoint_removelink(it, it.wphw04); it.wphw04 = NULL; }
1243                 if (it.wphw05) { waypoint_removelink(it, it.wphw05); it.wphw05 = NULL; }
1244                 if (it.wphw06) { waypoint_removelink(it, it.wphw06); it.wphw06 = NULL; }
1245                 if (it.wphw07) { waypoint_removelink(it, it.wphw07); it.wphw07 = NULL; }
1246                 waypoint_setupmodel(it);
1247         });
1248 }
1249
1250 void waypoint_load_hardwiredlinks()
1251 {
1252         string s;
1253         float file, tokens, c = 0, found;
1254         entity wp_from = NULL, wp_to;
1255         vector wp_to_pos, wp_from_pos;
1256
1257         string gt_ext = GET_GAMETYPE_EXTENSION();
1258
1259         string filename = sprintf("maps/%s.waypoints.hardwired", strcat(mapname, gt_ext));
1260         file = fopen(filename, FILE_READ);
1261
1262         if (gt_ext != "" && file < 0)
1263         {
1264                 // if race waypoint file doesn't exist load the default one
1265                 filename = sprintf("maps/%s.waypoints.hardwired", mapname);
1266                 file = fopen(filename, FILE_READ);
1267         }
1268
1269         botframe_loadedforcedlinks = true;
1270
1271         if (file < 0)
1272         {
1273                 LOG_TRACE("waypoint links load from ", filename, " failed");
1274                 return;
1275         }
1276
1277         bool is_special = false;
1278         while ((s = fgets(file)))
1279         {
1280                 if(substring(s, 0, 2)=="//")
1281                         continue;
1282
1283                 if(substring(s, 0, 1)=="#")
1284                         continue;
1285
1286                 // special links start with *, so old xonotic versions don't load them
1287                 is_special = false;
1288                 if (substring(s, 0, 1) == "*")
1289                 {
1290                         is_special = true;
1291                         s = substring(s, 1, -1);
1292                 }
1293
1294                 tokens = tokenizebyseparator(s, "*");
1295
1296                 if (tokens!=2)
1297                         continue;
1298
1299                 wp_from_pos     = stov(argv(0));
1300                 wp_to_pos       = stov(argv(1));
1301
1302                 // Search "from" waypoint
1303                 if(!wp_from || wp_from.origin!=wp_from_pos)
1304                 {
1305                         wp_from = findradius(wp_from_pos, 5);
1306                         found = false;
1307                         while(wp_from)
1308                         {
1309                                 if(vdist(wp_from.origin - wp_from_pos, <, 5))
1310                                 if(wp_from.classname == "waypoint")
1311                                 {
1312                                         found = true;
1313                                         break;
1314                                 }
1315                                 wp_from = wp_from.chain;
1316                         }
1317
1318                         if(!found)
1319                         {
1320                                 LOG_INFO("NOTICE: Can not find origin waypoint for the hardwired link ", s, ". Path skipped");
1321                                 continue;
1322                         }
1323                 }
1324
1325                 // Search "to" waypoint
1326                 wp_to = findradius(wp_to_pos, 5);
1327                 found = false;
1328                 while(wp_to)
1329                 {
1330                         if(vdist(wp_to.origin - wp_to_pos, <, 5))
1331                         if(wp_to.classname == "waypoint")
1332                         {
1333                                 found = true;
1334                                 break;
1335                         }
1336                         wp_to = wp_to.chain;
1337                 }
1338
1339                 if(!found)
1340                 {
1341                         LOG_INFO("NOTICE: Can not find destination waypoint for the hardwired link ", s, ". Path skipped");
1342                         continue;
1343                 }
1344
1345                 ++c;
1346
1347                 if (!is_special)
1348                 {
1349                         waypoint_addlink(wp_from, wp_to);
1350                         waypoint_mark_hardwiredlink(wp_from, wp_to);
1351                 } else if (wp_from.wpflags & WAYPOINTFLAG_NORELINK
1352                         && (wp_from.wpflags & WAYPOINTFLAG_JUMP || (wp_from.wpisbox && wp_from.wpflags & WAYPOINTFLAG_TELEPORT)))
1353                 {
1354                         waypoint_addlink(wp_from, wp_to);
1355                 }
1356         }
1357
1358         fclose(file);
1359
1360         LOG_TRACE("loaded ", ftos(c), " waypoint links from maps/", mapname, ".waypoints.hardwired");
1361 }
1362
1363 entity waypoint_get_link(entity w, float i)
1364 {
1365         switch(i)
1366         {
1367                 case  0:return w.wp00;
1368                 case  1:return w.wp01;
1369                 case  2:return w.wp02;
1370                 case  3:return w.wp03;
1371                 case  4:return w.wp04;
1372                 case  5:return w.wp05;
1373                 case  6:return w.wp06;
1374                 case  7:return w.wp07;
1375                 case  8:return w.wp08;
1376                 case  9:return w.wp09;
1377                 case 10:return w.wp10;
1378                 case 11:return w.wp11;
1379                 case 12:return w.wp12;
1380                 case 13:return w.wp13;
1381                 case 14:return w.wp14;
1382                 case 15:return w.wp15;
1383                 case 16:return w.wp16;
1384                 case 17:return w.wp17;
1385                 case 18:return w.wp18;
1386                 case 19:return w.wp19;
1387                 case 20:return w.wp20;
1388                 case 21:return w.wp21;
1389                 case 22:return w.wp22;
1390                 case 23:return w.wp23;
1391                 case 24:return w.wp24;
1392                 case 25:return w.wp25;
1393                 case 26:return w.wp26;
1394                 case 27:return w.wp27;
1395                 case 28:return w.wp28;
1396                 case 29:return w.wp29;
1397                 case 30:return w.wp30;
1398                 case 31:return w.wp31;
1399                 default:return NULL;
1400         }
1401 }
1402
1403 // Save all hardwired waypoint links to a file
1404 void waypoint_save_hardwiredlinks()
1405 {
1406         string gt_ext = GET_GAMETYPE_EXTENSION();
1407
1408         string filename = sprintf("maps/%s.waypoints.hardwired", strcat(mapname, gt_ext));
1409         int file = fopen(filename, FILE_READ);
1410
1411         if (gt_ext != "" && file < 0)
1412         {
1413                 // if race waypoint file doesn't exist load the default one
1414                 filename = sprintf("maps/%s.waypoints.hardwired", mapname);
1415                 file = fopen(filename, FILE_READ);
1416         }
1417
1418         if (file < 0)
1419         {
1420                 filename = sprintf("maps/%s.waypoints.hardwired", strcat(mapname, gt_ext));
1421                 file = fopen(filename, FILE_WRITE);
1422                 if (file < 0)
1423                 {
1424                         LOG_TRACE("waypoint hardwired links ", filename, " creation failed");
1425                         return;
1426                 }
1427                 fputs(file, "// HARDWIRED LINKS\n\n");
1428                 fclose(file);
1429                 fopen(filename, FILE_READ);
1430                 if (file < 0)
1431                 {
1432                         LOG_TRACE("waypoint hardwired links load from ", filename, " failed");
1433                         return;
1434                 }
1435         }
1436
1437         int buf = buf_create();
1438         string s;
1439         int pos = 0;
1440
1441         // read comments and hardwired links from file to buf, they won't be changed
1442         while ((s = fgets(file)))
1443         {
1444                 // special links start with *, so old xonotic versions don't load them
1445                 if (substring(s, 0, 1) == "*")
1446                         break;
1447                 bufstr_add(buf, s, false);
1448                 ++pos;
1449         }
1450         fclose(file);
1451
1452         // read links to buf
1453         bool special_link_found = false;
1454         IL_EACH(g_waypoints, it.wpflags & (WAYPOINTFLAG_JUMP | WAYPOINTFLAG_CUSTOM_JP),
1455         {
1456                 for (int j = 0; j < 32; ++j)
1457                 {
1458                         entity link = waypoint_get_link(it, j);
1459                         if (link)
1460                         {
1461                                 if (!special_link_found)
1462                                 {
1463                                         special_link_found = true;
1464                                         if (pos == 0 || substring(bufstr_get(buf, pos - 1), 0, 16) != "// SPECIAL LINKS")
1465                                         {
1466                                                 bufstr_add(buf, "// SPECIAL LINKS (saved in the waypoint editor, comments added hereby won't be preserved)", false);
1467                                         }
1468                                 }
1469                                 // NOTE: vtos rounds vector components to 1 decimal place
1470                                 string s = strcat("*", vtos(it.origin), "*", vtos(link.origin));
1471                                 bufstr_add(buf, s, false);
1472                         }
1473                 }
1474         });
1475
1476         // write buf to file
1477         gt_ext = GET_GAMETYPE_EXTENSION();
1478         filename = sprintf("maps/%s.waypoints.hardwired", strcat(mapname, gt_ext));
1479         file = fopen(filename, FILE_WRITE);
1480         if (file < 0)
1481         {
1482                 LOG_INFOF("waypoint hardwired link save to %s failed", filename);
1483                 return;
1484         }
1485         int n = buf_getsize(buf);
1486         for (int i = 0; i < n; ++i)
1487         {
1488                 fputs(file, (strcat(bufstr_get(buf, i), "\n")));
1489         }
1490         buf_del(buf);
1491         fclose(file);
1492
1493         LOG_INFOF("saved hardwired waypoint links to %s", filename);
1494 }
1495
1496 // Save all waypoint links to a file
1497 void waypoint_save_links()
1498 {
1499         // temporarily remove hardwired links so they don't get saved among normal links
1500         waypoint_remove_hardwiredlinks();
1501
1502         string gt_ext = GET_GAMETYPE_EXTENSION();
1503
1504         string filename = sprintf("maps/%s.waypoints.cache", strcat(mapname, gt_ext));
1505         int file = fopen(filename, FILE_WRITE);
1506         if (file < 0)
1507         {
1508                 LOG_INFOF("waypoint link save to %s failed", filename);
1509                 return;
1510         }
1511
1512         fputs(file, strcat("//", "WAYPOINT_VERSION ", ftos_decimals(WAYPOINT_VERSION, 2), "\n"));
1513         if (waypoint_time != "")
1514                 fputs(file, strcat("//", "WAYPOINT_TIME ", waypoint_time, "\n"));
1515
1516         int c = 0;
1517         IL_EACH(g_waypoints, !(it.wpflags & (WAYPOINTFLAG_JUMP | WAYPOINTFLAG_CUSTOM_JP)),
1518         {
1519                 for(int j = 0; j < 32; ++j)
1520                 {
1521                         entity link = waypoint_get_link(it, j);
1522                         if(link)
1523                         {
1524                                 // NOTE: vtos rounds vector components to 1 decimal place
1525                                 string s = strcat(vtos(it.origin), "*", vtos(link.origin), "\n");
1526                                 fputs(file, s);
1527                                 ++c;
1528                         }
1529                 }
1530         });
1531         fclose(file);
1532
1533         botframe_cachedwaypointlinks = true;
1534
1535         LOG_INFOF("saved %d waypoint links to %s", c, filename);
1536
1537         waypoint_load_hardwiredlinks();
1538 }
1539
1540 // save waypoints to gamedir/data/maps/mapname.waypoints
1541 void waypoint_saveall()
1542 {
1543         if (WAYPOINT_VERSION < waypoint_version_loaded)
1544         {
1545                 LOG_INFOF("^1Overwriting waypoints with a higher version number (%f) is not allowed.\n"
1546                         "Update Xonotic to make them editable.", waypoint_version_loaded);
1547                 return;
1548         }
1549         string gt_ext = GET_GAMETYPE_EXTENSION();
1550
1551         string filename = sprintf("maps/%s.waypoints", strcat(mapname, gt_ext));
1552         int file = fopen(filename, FILE_WRITE);
1553         if (file < 0)
1554         {
1555                 waypoint_save_links(); // save anyway?
1556                 botframe_loadedforcedlinks = false;
1557
1558                 LOG_INFOF("waypoint links: save to %s failed", filename);
1559                 return;
1560         }
1561
1562         float sym = autocvar_g_waypointeditor_symmetrical;
1563         string sym_str = ftos(sym);
1564         if (sym == -1 || (sym == 1 && autocvar_g_waypointeditor_symmetrical_order >= 2))
1565         {
1566                 if (sym == 1)
1567                 {
1568                         sym_str = cons(sym_str, "-");
1569                         sym_str = cons(sym_str, "-");
1570                 }
1571                 else
1572                 {
1573                         sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_origin.x));
1574                         sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_origin.y));
1575                 }
1576                 if (autocvar_g_waypointeditor_symmetrical_order >= 2)
1577                         sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_order));
1578         }
1579         else if (autocvar_g_waypointeditor_symmetrical == -2)
1580         {
1581                 sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_axis.x));
1582                 sym_str = cons(sym_str, ftos(autocvar_g_waypointeditor_symmetrical_axis.y));
1583         }
1584
1585         // a group of 3 comments doesn't break compatibility with older Xonotic versions
1586         // (they are read as a waypoint with origin '0 0 0' and flag 0 though)
1587         fputs(file, strcat("//", "WAYPOINT_VERSION ", ftos_decimals(WAYPOINT_VERSION, 2), "\n"));
1588         fputs(file, strcat("//", "WAYPOINT_SYMMETRY ", sym_str, "\n"));
1589
1590         strcpy(waypoint_time, strftime(true, "%Y-%m-%d %H:%M:%S"));
1591         fputs(file, strcat("//", "WAYPOINT_TIME ", waypoint_time, "\n"));
1592         //fputs(file, strcat("//", "\n"));
1593         //fputs(file, strcat("//", "\n"));
1594         //fputs(file, strcat("//", "\n"));
1595
1596         int c = 0;
1597         IL_EACH(g_waypoints, true,
1598         {
1599                 if(it.wpflags & WAYPOINTFLAG_GENERATED)
1600                         continue;
1601
1602                 string s;
1603                 // NOTE: vtos rounds vector components to 1 decimal place
1604                 s = strcat(vtos(it.origin + it.mins), "\n");
1605                 s = strcat(s, vtos(it.origin + it.maxs));
1606                 s = strcat(s, "\n");
1607                 s = strcat(s, ftos(it.wpflags));
1608                 s = strcat(s, "\n");
1609                 fputs(file, s);
1610                 c++;
1611         });
1612         fclose(file);
1613         waypoint_save_links();
1614         waypoint_save_hardwiredlinks();
1615
1616         botframe_loadedforcedlinks = false;
1617
1618         waypoint_version_loaded = WAYPOINT_VERSION;
1619         LOG_INFOF("saved %d waypoints to %s", c, filename);
1620 }
1621
1622 // load waypoints from file
1623 float waypoint_loadall()
1624 {
1625         string s;
1626         float file, cwp, cwb, fl;
1627         vector m1, m2;
1628         cwp = 0;
1629         cwb = 0;
1630
1631         string gt_ext = GET_GAMETYPE_EXTENSION();
1632
1633         string filename = sprintf("maps/%s.waypoints", strcat(mapname, gt_ext));
1634         file = fopen(filename, FILE_READ);
1635
1636         if (gt_ext != "" && file < 0)
1637         {
1638                 // if race waypoint file doesn't exist load the default one
1639                 filename = sprintf("maps/%s.waypoints", mapname);
1640                 file = fopen(filename, FILE_READ);
1641         }
1642
1643         if (file < 0)
1644         {
1645                 LOG_TRACE("waypoint load from ", filename, " failed");
1646                 return 0;
1647         }
1648
1649         bool parse_comments = true;
1650         float ver = 0;
1651         float sym = 0;
1652         float sym_param1 = 0, sym_param2 = 0, sym_param3 = 0;
1653
1654         while ((s = fgets(file)))
1655         {
1656                 if(parse_comments)
1657                 {
1658                         if(substring(s, 0, 2) == "//")
1659                         {
1660                                 if(substring(s, 2, 17) == "WAYPOINT_VERSION ")
1661                                         ver = stof(substring(s, 19, -1));
1662                                 else if(substring(s, 2, 18) == "WAYPOINT_SYMMETRY ")
1663                                 {
1664                                         int tokens = tokenizebyseparator(substring(s, 20, -1), " ");
1665                                         if (tokens) { sym = stof(argv(0)); }
1666                                         if (tokens > 1) { sym_param1 = stof(argv(1)); }
1667                                         if (tokens > 2) { sym_param2 = stof(argv(2)); }
1668                                         if (tokens > 3) { sym_param3 = stof(argv(3)); }
1669                                 }
1670                                 else if(substring(s, 2, 14) == "WAYPOINT_TIME ")
1671                                         strcpy(waypoint_time, substring(s, 16, -1));
1672                                 continue;
1673                         }
1674                         else
1675                         {
1676                                 if(floor(ver) < floor(WAYPOINT_VERSION))
1677                                 {
1678                                         LOG_TRACE("waypoints for this map are outdated");
1679                                         LOG_TRACE("please update them in the editor");
1680                                 }
1681                                 parse_comments = false;
1682                         }
1683                 }
1684                 m1 = stov(s);
1685                 s = fgets(file);
1686                 if (!s)
1687                         break;
1688                 m2 = stov(s);
1689                 s = fgets(file);
1690                 if (!s)
1691                         break;
1692                 fl = stof(s);
1693                 waypoint_spawn(m1, m2, fl);
1694                 if (m1 == m2)
1695                         cwp = cwp + 1;
1696                 else
1697                         cwb = cwb + 1;
1698         }
1699         fclose(file);
1700         waypoint_version_loaded = ver;
1701         LOG_TRACE("loaded ", ftos(cwp), " waypoints and ", ftos(cwb), " wayboxes from maps/", mapname, ".waypoints");
1702
1703         if (autocvar_g_waypointeditor && autocvar_g_waypointeditor_symmetrical_allowload)
1704         {
1705                 cvar_set("g_waypointeditor_symmetrical", ftos(sym));
1706                 if (sym == 1 && sym_param3 < 2)
1707                         cvar_set("g_waypointeditor_symmetrical_order", "0"); // make sure this is reset if not loaded
1708                 if (sym == -1 || (sym == 1 && sym_param3 >= 2))
1709                 {
1710                         string params;
1711                         if (sym == 1)
1712                                 params = cons("-", "-");
1713                         else
1714                         {
1715                                 params = cons(ftos(sym_param1), ftos(sym_param2));
1716                                 cvar_set("g_waypointeditor_symmetrical_origin", params);
1717                         }
1718                         cvar_set("g_waypointeditor_symmetrical_order", ftos(sym_param3));
1719                         LOG_INFO("Waypoint editor: loaded symmetry ", ftos(sym), " with origin ", params, " and order ", ftos(sym_param3));
1720                 }
1721                 else if (sym == -2)
1722                 {
1723                         string params = strcat(ftos(sym_param1), " ", ftos(sym_param2));
1724                         cvar_set("g_waypointeditor_symmetrical_axis", params);
1725                         LOG_INFO("Waypoint editor: loaded symmetry ", ftos(sym), " with axis ", params);
1726                 }
1727                 else
1728                         LOG_INFO("Waypoint editor: loaded symmetry ", ftos(sym));
1729                 LOG_INFO(strcat("g_waypointeditor_symmetrical", " has been set to ", cvar_string("g_waypointeditor_symmetrical")));
1730         }
1731
1732         if (WAYPOINT_VERSION < waypoint_version_loaded)
1733                 LOG_INFOF("^1Editing waypoints with a higher version number (%f) is not allowed.\n"
1734                         "Update Xonotic to make them editable.", waypoint_version_loaded);
1735
1736         return cwp + cwb;
1737 }
1738
1739 #define waypoint_fixorigin(position, tracetest_ent) \
1740         waypoint_fixorigin_down_dir(position, tracetest_ent, '0 0 -1')
1741
1742 vector waypoint_fixorigin_down_dir(vector position, entity tracetest_ent, vector down_dir)
1743 {
1744         vector endpos = position + down_dir * 3000;
1745         tracebox(position + '0 0 1', PL_MIN_CONST, PL_MAX_CONST, endpos, MOVE_NOMONSTERS, tracetest_ent);
1746         if(trace_startsolid)
1747                 tracebox(position + '0 0 1' * (1 - PL_MIN_CONST.z / 2), PL_MIN_CONST, PL_MAX_CONST, endpos, MOVE_NOMONSTERS, tracetest_ent);
1748         if(trace_startsolid)
1749                 tracebox(position + '0 0 1' * (1 - PL_MIN_CONST.z), PL_MIN_CONST, PL_MAX_CONST, endpos, MOVE_NOMONSTERS, tracetest_ent);
1750         if(trace_fraction < 1)
1751                 position = trace_endpos;
1752         return position;
1753 }
1754
1755 void waypoint_spawnforitem_force(entity e, vector org)
1756 {
1757         // Fix the waypoint altitude if necessary
1758         org = waypoint_fixorigin(org, NULL);
1759
1760         // don't spawn an item spawnfunc_waypoint if it already exists
1761         IL_EACH(g_waypoints, true,
1762         {
1763                 if(it.wpisbox)
1764                 {
1765                         if(boxesoverlap(org, org, it.absmin, it.absmax))
1766                         {
1767                                 e.nearestwaypoint = it;
1768                                 return;
1769                         }
1770                 }
1771                 else
1772                 {
1773                         if(vdist(it.origin - org, <, 16))
1774                         {
1775                                 e.nearestwaypoint = it;
1776                                 return;
1777                         }
1778                 }
1779         });
1780
1781         e.nearestwaypoint = waypoint_spawn(org, org, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_ITEM);
1782 }
1783
1784 void waypoint_spawnforitem(entity e)
1785 {
1786         if(!bot_waypoints_for_items)
1787                 return;
1788
1789         waypoint_spawnforitem_force(e, e.origin);
1790 }
1791
1792 void waypoint_spawnforteleporter_boxes(entity e, int teleport_flag, vector org1, vector org2, vector destination1, vector destination2, float timetaken)
1793 {
1794         entity w;
1795         entity dw;
1796         w = waypoint_spawn(org1, org2, WAYPOINTFLAG_GENERATED | teleport_flag | WAYPOINTFLAG_NORELINK);
1797         dw = waypoint_spawn(destination1, destination2, WAYPOINTFLAG_GENERATED);
1798         // one way link to the destination
1799         w.wp00_original = dw;
1800         w.wp00 = dw;
1801         w.wp00mincost = timetaken; // this is just for jump pads
1802         // the teleporter's nearest spawnfunc_waypoint is this one
1803         // (teleporters are not goals, so this is probably useless)
1804         e.nearestwaypoint = w;
1805         e.nearestwaypointtimeout = -1;
1806 }
1807
1808 void waypoint_spawnforteleporter_wz(entity e, entity tracetest_ent)
1809 {
1810         float src_angle = e.warpzone_angles.x;
1811         while (src_angle < -180) src_angle += 360;
1812         while (src_angle > 180) src_angle -= 360;
1813
1814         float dest_angle = e.enemy.warpzone_angles.x;
1815         while (dest_angle < -180) dest_angle += 360;
1816         while (dest_angle > 180) dest_angle -= 360;
1817
1818         // no waypoints for warpzones pointing upwards, they can't be used by the bots
1819         if (src_angle == -90 || dest_angle == -90)
1820                 return;
1821
1822         makevectors(e.warpzone_angles);
1823         vector src = (e.absmin + e.absmax) * 0.5;
1824         src += ((e.warpzone_origin - src) * v_forward) * v_forward + 16 * v_right;
1825         vector down_dir_src = -v_up;
1826
1827         makevectors(e.enemy.warpzone_angles);
1828         vector dest = (e.enemy.absmin + e.enemy.absmax) * 0.5;
1829         dest += ((e.enemy.warpzone_origin - dest) * v_forward) * v_forward - 16 * v_right;
1830         vector down_dir_dest = -v_up;
1831
1832         int extra_flag = 0;
1833         // don't snap to the ground waypoints for source warpzones pointing downwards
1834         if (src_angle != 90)
1835         {
1836                 src = waypoint_fixorigin_down_dir(src, tracetest_ent, down_dir_src);
1837                 dest = waypoint_fixorigin_down_dir(dest, tracetest_ent, down_dir_dest);
1838                 // oblique warpzones need a jump otherwise bots gets stuck
1839                 if (src_angle != 0)
1840                         extra_flag = WAYPOINTFLAG_JUMP;
1841         }
1842
1843         waypoint_spawnforteleporter_boxes(e, WAYPOINTFLAG_TELEPORT | extra_flag, src, src, dest, dest, 0);
1844 }
1845
1846 void waypoint_spawnforteleporter(entity e, vector destination, float timetaken, entity tracetest_ent)
1847 {
1848         destination = waypoint_fixorigin(destination, tracetest_ent);
1849         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);
1850 }
1851
1852 entity waypoint_spawnpersonal(entity this, vector position)
1853 {
1854         entity w;
1855
1856         // drop the waypoint to a proper location:
1857         //   first move it up by a player height
1858         //   then move it down to hit the floor with player bbox size
1859         position = waypoint_fixorigin(position, this);
1860
1861         w = waypoint_spawn(position, position, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_PERSONAL);
1862         w.nearestwaypoint = NULL;
1863         w.nearestwaypointtimeout = 0;
1864         w.owner = this;
1865
1866         waypoint_schedulerelink(w);
1867
1868         return w;
1869 }
1870
1871 void waypoint_showlink(entity wp1, entity wp2, int display_type)
1872 {
1873         if (!(wp1 && wp2))
1874                 return;
1875
1876         if (waypoint_is_hardwiredlink(wp1, wp2))
1877                 te_beam(NULL, wp1.origin, wp2.origin);
1878         else if (display_type == 1)
1879                 te_lightning2(NULL, wp1.origin, wp2.origin);
1880 }
1881
1882 void waypoint_showlinks_to(entity wp, int display_type)
1883 {
1884         IL_EACH(g_waypoints, it != wp,
1885         {
1886                 if (waypoint_islinked(it, wp))
1887                         waypoint_showlink(it, wp, display_type);
1888         });
1889 }
1890
1891 void waypoint_showlinks_from(entity wp, int display_type)
1892 {
1893         waypoint_showlink(wp, wp.wp00, display_type); waypoint_showlink(wp, wp.wp16, display_type);
1894         waypoint_showlink(wp, wp.wp01, display_type); waypoint_showlink(wp, wp.wp17, display_type);
1895         waypoint_showlink(wp, wp.wp02, display_type); waypoint_showlink(wp, wp.wp18, display_type);
1896         waypoint_showlink(wp, wp.wp03, display_type); waypoint_showlink(wp, wp.wp19, display_type);
1897         waypoint_showlink(wp, wp.wp04, display_type); waypoint_showlink(wp, wp.wp20, display_type);
1898         waypoint_showlink(wp, wp.wp05, display_type); waypoint_showlink(wp, wp.wp21, display_type);
1899         waypoint_showlink(wp, wp.wp06, display_type); waypoint_showlink(wp, wp.wp22, display_type);
1900         waypoint_showlink(wp, wp.wp07, display_type); waypoint_showlink(wp, wp.wp23, display_type);
1901         waypoint_showlink(wp, wp.wp08, display_type); waypoint_showlink(wp, wp.wp24, display_type);
1902         waypoint_showlink(wp, wp.wp09, display_type); waypoint_showlink(wp, wp.wp25, display_type);
1903         waypoint_showlink(wp, wp.wp10, display_type); waypoint_showlink(wp, wp.wp26, display_type);
1904         waypoint_showlink(wp, wp.wp11, display_type); waypoint_showlink(wp, wp.wp27, display_type);
1905         waypoint_showlink(wp, wp.wp12, display_type); waypoint_showlink(wp, wp.wp28, display_type);
1906         waypoint_showlink(wp, wp.wp13, display_type); waypoint_showlink(wp, wp.wp29, display_type);
1907         waypoint_showlink(wp, wp.wp14, display_type); waypoint_showlink(wp, wp.wp30, display_type);
1908         waypoint_showlink(wp, wp.wp15, display_type); waypoint_showlink(wp, wp.wp31, display_type);
1909 }
1910
1911 void crosshair_trace_waypoints(entity pl)
1912 {
1913         IL_EACH(g_waypoints, true, {
1914                 it.solid = SOLID_BSP;
1915                 if (!it.wpisbox)
1916                         setsize(it, '-16 -16 -16', '16 16 16');
1917         });
1918
1919         crosshair_trace(pl);
1920
1921         IL_EACH(g_waypoints, true, {
1922                 it.solid = SOLID_TRIGGER;
1923                 if (!it.wpisbox)
1924                         setsize(it, '0 0 0', '0 0 0');
1925         });
1926         if (trace_ent.classname != "waypoint")
1927                 trace_ent = NULL;
1928 }
1929
1930 void botframe_showwaypointlinks()
1931 {
1932         if (time < botframe_waypointeditorlightningtime)
1933                 return;
1934         botframe_waypointeditorlightningtime = time + 0.5;
1935         FOREACH_CLIENT(IS_PLAYER(it) && !it.isbot,
1936         {
1937                 int display_type = 0;
1938                 if (wasfreed(it.wp_aimed))
1939                         it.wp_aimed = NULL;
1940                 if (wasfreed(it.wp_locked))
1941                         it.wp_locked = NULL;
1942                 if (PHYS_INPUT_BUTTON_USE(it))
1943                         it.wp_locked = it.wp_aimed;
1944                 entity head = it.wp_locked;
1945                 if (!head)
1946                         head = navigation_findnearestwaypoint(it, false);
1947                 it.nearestwaypoint = head; // mainly useful for debug
1948                 it.nearestwaypointtimeout = time + 2; // while I'm at it...
1949                 if (IS_ONGROUND(it) || it.waterlevel > WATERLEVEL_NONE || it.wp_locked)
1950                         display_type = 1; // default
1951                 else if(waypoint_has_hardwiredlinks(head))
1952                         display_type = 2; // only hardwired
1953
1954                 if (display_type)
1955                 {
1956                         //navigation_testtracewalk = true;
1957                         //print("currently selected WP is ", etos(head), "\n");
1958                         //navigation_testtracewalk = false;
1959                         if (head)
1960                         {
1961                                 te_lightning2(NULL, head.origin, it.origin);
1962                                 if(PHYS_INPUT_BUTTON_CROUCH(it))
1963                                         waypoint_showlinks_to(head, display_type);
1964                                 else
1965                                         waypoint_showlinks_from(head, display_type);
1966                         }
1967                 }
1968                 string str;
1969                 entity wp = NULL;
1970                 if (vdist(vec2(it.velocity), <, autocvar_sv_maxspeed * 1.1))
1971                 {
1972                         crosshair_trace_waypoints(it);
1973                         if (trace_ent)
1974                         {
1975                                 wp = trace_ent;
1976                                 if (wp != it.wp_aimed)
1977                                 {
1978                                         str = sprintf("\necho ^2WP info^7: entity: %d, flags: %d, origin: '%s'\n", etof(wp), wp.wpflags, vtos(wp.origin));
1979                                         if (wp.wpisbox)
1980                                                 str = strcat(str, sprintf("echo \" absmin: '%s', absmax: '%s'\"\n", vtos(wp.absmin), vtos(wp.absmax)));
1981                                         stuffcmd(it, str);
1982                                         str = sprintf("entity: %d\nflags: %d\norigin: \'%s\'", etof(wp), wp.wpflags, vtos(wp.origin));
1983                                         if (wp.wpisbox)
1984                                                 str = strcat(str, sprintf(" \nabsmin: '%s'\nabsmax: '%s'", vtos(wp.absmin), vtos(wp.absmax)));
1985                                         debug_text_3d(wp.origin, str, 0, 7, '0 0 0');
1986                                 }
1987                         }
1988                 }
1989                 if (it.wp_aimed != wp)
1990                         it.wp_aimed = wp;
1991         });
1992 }
1993
1994 float botframe_autowaypoints_fixdown(vector v)
1995 {
1996         tracebox(v, PL_MIN_CONST, PL_MAX_CONST, v + '0 0 -64', MOVE_NOMONSTERS, NULL);
1997         if(trace_fraction >= 1)
1998                 return 0;
1999         return 1;
2000 }
2001
2002 float botframe_autowaypoints_createwp(vector v, entity p, .entity fld, float f)
2003 {
2004         IL_EACH(g_waypoints, boxesoverlap(v - '32 32 32', v + '32 32 32', it.absmin, it.absmax),
2005         {
2006                 // if a matching spawnfunc_waypoint already exists, don't add a duplicate
2007                 return 0;
2008         });
2009
2010         waypoint_schedulerelink(p.(fld) = waypoint_spawn(v, v, f));
2011         return 1;
2012 }
2013
2014 // return value:
2015 //    1 = WP created
2016 //    0 = no action needed
2017 //   -1 = temp fail, try from world too
2018 //   -2 = permanent fail, do not retry
2019 float botframe_autowaypoints_fix_from(entity p, float walkfromwp, entity wp, .entity fld)
2020 {
2021         // make it possible to go from p to wp, if we can
2022         // if wp is NULL, nearest is chosen
2023
2024         entity w;
2025         vector porg;
2026         float t, tmin, tmax;
2027         vector o;
2028         vector save;
2029
2030         if(!botframe_autowaypoints_fixdown(p.origin))
2031                 return -2;
2032         porg = trace_endpos;
2033
2034         if(wp)
2035         {
2036                 // if any WP w fulfills wp -> w -> porg and w is closer than wp, then switch from wp to w
2037
2038                 // if wp -> porg, then OK
2039                 float maxdist;
2040                 if(navigation_waypoint_will_link(wp.origin, porg, p, porg, 0, wp.origin, 0, walkfromwp, 1050))
2041                 {
2042                         // we may find a better one
2043                         maxdist = vlen(wp.origin - porg);
2044                 }
2045                 else
2046                 {
2047                         // accept any "good"
2048                         maxdist = 2100;
2049                 }
2050
2051                 float bestdist = maxdist;
2052                 IL_EACH(g_waypoints, it != wp && !(it.wpflags & WAYPOINTFLAG_NORELINK),
2053                 {
2054                         float d = vlen(wp.origin - it.origin) + vlen(it.origin - porg);
2055                         if(d < bestdist)
2056                         if(navigation_waypoint_will_link(wp.origin, it.origin, p, it.origin, 0, wp.origin, 0, walkfromwp, 1050))
2057                         if(navigation_waypoint_will_link(it.origin, porg, p, porg, 0, it.origin, 0, walkfromwp, 1050))
2058                         {
2059                                 bestdist = d;
2060                                 p.(fld) = it;
2061                         }
2062                 });
2063                 if(bestdist < maxdist)
2064                 {
2065                         LOG_INFO("update chain to new nearest WP ", etos(p.(fld)));
2066                         return 0;
2067                 }
2068
2069                 if(bestdist < 2100)
2070                 {
2071                         // we know maxdist < 2100
2072                         // so wp -> porg is still valid
2073                         // all is good
2074                         p.(fld) = wp;
2075                         return 0;
2076                 }
2077
2078                 // otherwise, no existing WP can fix our issues
2079         }
2080         else
2081         {
2082                 save = p.origin;
2083                 setorigin(p, porg);
2084                 w = navigation_findnearestwaypoint(p, walkfromwp);
2085                 setorigin(p, save);
2086                 if(w)
2087                 {
2088                         p.(fld) = w;
2089                         return 0;
2090                 }
2091         }
2092
2093         tmin = 0;
2094         tmax = 1;
2095         for (;;)
2096         {
2097                 if(tmax - tmin < 0.001)
2098                 {
2099                         // did not get a good candidate
2100                         return -1;
2101                 }
2102
2103                 t = (tmin + tmax) * 0.5;
2104                 o = antilag_takebackorigin(p, CS(p), time - t);
2105                 if(!botframe_autowaypoints_fixdown(o))
2106                         return -2;
2107                 o = trace_endpos;
2108
2109                 if(wp)
2110                 {
2111                         if(!navigation_waypoint_will_link(wp.origin, o, p, o, 0, wp.origin, 0, walkfromwp, 1050))
2112                         {
2113                                 // we cannot walk from wp.origin to o
2114                                 // get closer to tmax
2115                                 tmin = t;
2116                                 continue;
2117                         }
2118                 }
2119                 else
2120                 {
2121                         save = p.origin;
2122                         setorigin(p, o);
2123                         w = navigation_findnearestwaypoint(p, walkfromwp);
2124                         setorigin(p, save);
2125                         if(!w)
2126                         {
2127                                 // we cannot walk from any WP to o
2128                                 // get closer to tmax
2129                                 tmin = t;
2130                                 continue;
2131                         }
2132                 }
2133
2134                 // if we get here, o is valid regarding waypoints
2135                 // check if o is connected right to the player
2136                 // we break if it succeeds, as that means o is a good waypoint location
2137                 if(navigation_waypoint_will_link(o, porg, p, porg, 0, o, 0, walkfromwp, 1050))
2138                         break;
2139
2140                 // o is no good, we need to get closer to the player
2141                 tmax = t;
2142         }
2143
2144         LOG_INFO("spawning a waypoint for connecting to ", etos(wp));
2145         botframe_autowaypoints_createwp(o, p, fld, 0);
2146         return 1;
2147 }
2148
2149 // automatically create missing waypoints
2150 .entity botframe_autowaypoints_lastwp0, botframe_autowaypoints_lastwp1;
2151 void botframe_autowaypoints_fix(entity p, float walkfromwp, .entity fld)
2152 {
2153         float r = botframe_autowaypoints_fix_from(p, walkfromwp, p.(fld), fld);
2154         if(r != -1)
2155                 return;
2156         r = botframe_autowaypoints_fix_from(p, walkfromwp, NULL, fld);
2157         if(r != -1)
2158                 return;
2159
2160         LOG_INFO("emergency: got no good nearby WP to build a link from, starting a new chain");
2161         if(!botframe_autowaypoints_fixdown(p.origin))
2162                 return; // shouldn't happen, caught above
2163         botframe_autowaypoints_createwp(trace_endpos, p, fld, WAYPOINTFLAG_PROTECTED);
2164 }
2165
2166 void botframe_deleteuselesswaypoints()
2167 {
2168         IL_EACH(g_items, it.bot_pickup,
2169         {
2170                 // NOTE: this protects waypoints if they're the ONLY nearest
2171                 // waypoint. That's the intention.
2172                 navigation_findnearestwaypoint(it, false);  // Walk TO item.
2173                 navigation_findnearestwaypoint(it, true);  // Walk FROM item.
2174         });
2175         IL_EACH(g_waypoints, true,
2176         {
2177                 it.wpflags |= WAYPOINTFLAG_DEAD_END;
2178                 it.wpflags &= ~WAYPOINTFLAG_USEFUL;
2179                 // WP is useful if:
2180                 if (it.wpflags & WAYPOINTFLAG_ITEM)
2181                         it.wpflags |= WAYPOINTFLAG_USEFUL;
2182                 if (it.wpflags & WAYPOINTFLAG_TELEPORT)
2183                         it.wpflags |= WAYPOINTFLAG_USEFUL;
2184                 if (it.wpflags & WAYPOINTFLAG_LADDER)
2185                         it.wpflags |= WAYPOINTFLAG_USEFUL;
2186                 if (it.wpflags & WAYPOINTFLAG_PROTECTED)
2187                         it.wpflags |= WAYPOINTFLAG_USEFUL;
2188                 // b) WP is closest WP for an item/spawnpoint/other entity
2189                 //    This has been done above by protecting these WPs.
2190         });
2191         // c) There are w1, w, w2 so that w1 -> w, w -> w2 and not w1 -> w2.
2192         IL_EACH(g_waypoints, !(it.wpflags & WAYPOINTFLAG_PERSONAL),
2193         {
2194                 for (int m = 0; m < 32; ++m)
2195                 {
2196                         entity w = waypoint_get_link(it, m);
2197                         if (!w)
2198                                 break;
2199                         if (w.wpflags & WAYPOINTFLAG_PERSONAL)
2200                                 continue;
2201                         if (w.wpflags & WAYPOINTFLAG_USEFUL)
2202                                 continue;
2203                         for (int j = 0; j < 32; ++j)
2204                         {
2205                                 entity w2 = waypoint_get_link(w, j);
2206                                 if (!w2)
2207                                         break;
2208                                 if (it == w2)
2209                                         continue;
2210                                 if (w2.wpflags & WAYPOINTFLAG_PERSONAL)
2211                                         continue;
2212                                 // If we got here, it != w2 exist with it -> w
2213                                 // and w -> w2. That means the waypoint is not
2214                                 // a dead end.
2215                                 w.wpflags &= ~WAYPOINTFLAG_DEAD_END;
2216                                 for (int k = 0; k < 32; ++k)
2217                                 {
2218                                         if (waypoint_get_link(it, k) == w2)
2219                                                 continue;
2220                                         // IF WE GET HERE, w is proven useful
2221                                         // to get from it to w2!
2222                                         w.wpflags |= WAYPOINTFLAG_USEFUL;
2223                                         goto next;
2224                                 }
2225                         }
2226 LABEL(next)
2227                 }
2228         });
2229         // d) The waypoint is a dead end. Dead end waypoints must be kept as
2230         //     they are needed to complete routes while autowaypointing.
2231
2232         IL_EACH(g_waypoints, !(it.wpflags & (WAYPOINTFLAG_USEFUL | WAYPOINTFLAG_DEAD_END)),
2233         {
2234                 LOG_INFOF("Removed a waypoint at %v. Try again for more!", it.origin);
2235                 te_explosion(it.origin);
2236                 waypoint_remove(it);
2237                 break;
2238         });
2239
2240         IL_EACH(g_waypoints, true,
2241         {
2242                 it.wpflags &= ~(WAYPOINTFLAG_USEFUL | WAYPOINTFLAG_DEAD_END); // temp flag
2243         });
2244 }
2245
2246 void botframe_autowaypoints()
2247 {
2248         FOREACH_CLIENT(IS_PLAYER(it) && IS_REAL_CLIENT(it) && !IS_DEAD(it), {
2249                 // going back is broken, so only fix waypoints to walk TO the player
2250                 //botframe_autowaypoints_fix(p, false, botframe_autowaypoints_lastwp0);
2251                 botframe_autowaypoints_fix(it, true, botframe_autowaypoints_lastwp1);
2252                 //te_explosion(p.botframe_autowaypoints_lastwp0.origin);
2253         });
2254
2255         if (autocvar_g_waypointeditor_auto >= 2) {
2256                 botframe_deleteuselesswaypoints();
2257         }
2258 }
2259