qcsrc/lib/spawnfunc.qh

   1 #pragma once
   2
   3 /** If this global exists, only functions with spawnfunc_ name prefix qualify as spawn functions */
   4 noref bool require_spawnfunc_prefix;
   5 .bool spawnfunc_checked;
   6
   7 // Optional type checking; increases compile time too much to be enabled by default
   8 #if 0
   9         bool entityfieldassignablefromeditor(int i)
  10         {
  11                 switch (entityfieldtype(i))
  12                 {
  13                         case FIELD_STRING:
  14                         case FIELD_FLOAT:
  15                         case FIELD_VECTOR:
  16                                 return true;
  17                 }
  18                 return false;
  19         }
  20
  21         #define _spawnfunc_checktypes(fld) \
  22                 if (fieldname == #fld) \
  23                         if (!entityfieldassignablefromeditor(i)) LOG_FATALF("Entity field '%s' cannot be whitelisted", fieldname);
  24 #else
  25         #define _spawnfunc_checktypes(fld)
  26 #endif
  27         #define _spawnfunc_check(fld) \
  28                 if (fieldname == #fld) continue;
  29
  30         noref int __spawnfunc_expecting;
  31         noref entity __spawnfunc_expect;
  32         noref bool __spawnfunc_unreachable_workaround = true;
  33
  34     .void(entity) __spawnfunc_constructor;
  35     noref IntrusiveList g_spawn_queue;
  36
  37     #define SPAWNFUNC_INTERNAL_FIELDS(X) \
  38         X(string, classname, "spawnfunc") \
  39         X(string, targetname, string_null) \
  40         /**/
  41
  42     #define X(T, fld, def) .T fld, __spawnfunc_##fld;
  43     SPAWNFUNC_INTERNAL_FIELDS(X)
  44     #undef X
  45
  46     void __spawnfunc_defer(entity prototype, void(entity) constructor)
  47     {
  48         IL_PUSH(g_spawn_queue, prototype);
  49         #define X(T, fld, def) { prototype.__spawnfunc_##fld = prototype.fld; prototype.fld = def; }
  50         SPAWNFUNC_INTERNAL_FIELDS(X);
  51         #undef X
  52         prototype.__spawnfunc_constructor = constructor;
  53     }
  54
  55     noref IntrusiveList g_map_entities;
  56     #define __spawnfunc_spawn_all() MACRO_BEGIN \
  57         g_map_entities = IL_NEW(); \
  58         IL_EACH(g_spawn_queue, true, __spawnfunc_spawn(it)); \
  59     MACRO_END
  60
  61     void __spawnfunc_spawn(entity prototype)
  62     {
  63         entity e = new(clone);
  64         copyentity(prototype, e);
  65         IL_PUSH(g_map_entities, e);
  66         #define X(T, fld, def) { e.fld = e.__spawnfunc_##fld; e.__spawnfunc_##fld = def; }
  67         SPAWNFUNC_INTERNAL_FIELDS(X);
  68         #undef X
  69         e.__spawnfunc_constructor(e);
  70     }
  71
  72         #define spawnfunc_1(id) spawnfunc_2(id, FIELDS_UNION)
  73         #define spawnfunc_2(id, whitelist) \
  74                 void __spawnfunc_##id(entity this); \
  75                 [[accumulate]] void spawnfunc_##id(entity this) \
  76                 { \
  77                     bool dospawn = true; \
  78                     if (__spawnfunc_expecting > 1) { __spawnfunc_expecting = false; } \
  79                         else if (__spawnfunc_expecting) { \
  80                                 /* engine call */ \
  81                 if (!g_spawn_queue) { g_spawn_queue = IL_NEW(); } \
  82                                 __spawnfunc_expecting = false; \
  83                                 this = __spawnfunc_expect; \
  84                                 __spawnfunc_expect = NULL; \
  85                 dospawn = false; \
  86                         } else { \
  87                             /* userland call */ \
  88                                 assert(this); \
  89                         } \
  90                         if (!this.sourceLoc) { \
  91                                 this.sourceLoc = __FILE__ ":" STR(__LINE__); \
  92                         } \
  93                         if (!this.spawnfunc_checked) { \
  94                                 for (int i = 0, n = numentityfields(); i < n; ++i) { \
  95                                         string value = getentityfieldstring(i, this); \
  96                                         string fieldname = entityfieldname(i); \
  97                                         whitelist(_spawnfunc_checktypes) \
  98                                         if (value == "") continue; \
  99                                         if (fieldname == "") continue; \
 100                                         FIELDS_COMMON(_spawnfunc_check) \
 101                                         whitelist(_spawnfunc_check) \
 102                                         LOG_WARNF(_("Entity field %s.%s (%s) is not whitelisted. If you believe this is an error, please file an issue."), #id, fieldname, value); \
 103                                 } \
 104                                 this.spawnfunc_checked = true; \
 105                                 if (this) { \
 106                     /* not worldspawn, delay spawn */ \
 107                     __spawnfunc_defer(this, __spawnfunc_##id); \
 108                 } else { \
 109                     /* world might not be "worldspawn" */ \
 110                     this.__spawnfunc_constructor = __spawnfunc_##id; \
 111                 } \
 112                         } \
 113                         if (dospawn) { __spawnfunc_##id(this); } \
 114                         if (__spawnfunc_unreachable_workaround) return; \
 115                 } \
 116                 void __spawnfunc_##id(entity this)
 117
 118         #define FIELD_SCALAR(fld, n) \
 119                 fld(n)
 120         #define FIELD_VEC(fld, n) \
 121                 fld(n) \
 122                 fld(n##_x) \
 123                 fld(n##_y) \
 124                 fld(n##_z)
 125
 126         #define FIELDS_NONE(fld)
 127         #define FIELDS_ALL(fld) if (false)
 128
 129         #define FIELDS_COMMON(fld) \
 130                 FIELD_SCALAR(fld, classname) \
 131                 FIELD_SCALAR(fld, sourceLoc) \
 132                 FIELD_SCALAR(fld, spawnfunc_checked) \
 133                 FIELD_VEC(fld, origin) \
 134                 /**/
 135
 136         #define FIELDS_UNION(fld) \
 137                 FIELD_SCALAR(fld, Version) \
 138                 FIELD_SCALAR(fld, ammo_cells) \
 139                 FIELD_SCALAR(fld, ammo_nails) \
 140                 FIELD_SCALAR(fld, ammo_rockets) \
 141                 FIELD_SCALAR(fld, armorvalue) \
 142                 FIELD_SCALAR(fld, atten) \
 143                 FIELD_SCALAR(fld, bgmscriptdecay) \
 144                 FIELD_SCALAR(fld, bgmscriptsustain) \
 145                 FIELD_SCALAR(fld, bgmscript) \
 146                 FIELD_SCALAR(fld, button0) \
 147                 FIELD_SCALAR(fld, cnt) \
 148                 FIELD_SCALAR(fld, colormap) \
 149                 FIELD_SCALAR(fld, count) \
 150                 FIELD_SCALAR(fld, curvetarget) \
 151                 FIELD_SCALAR(fld, cvarfilter) \
 152                 FIELD_SCALAR(fld, debrisdamageforcescale) \
 153                 FIELD_SCALAR(fld, debrisfadetime) \
 154                 FIELD_SCALAR(fld, debristimejitter) \
 155                 FIELD_SCALAR(fld, debristime) \
 156                 FIELD_SCALAR(fld, debris) \
 157                 FIELD_SCALAR(fld, delay) \
 158                 FIELD_SCALAR(fld, dmgtime) \
 159                 FIELD_SCALAR(fld, dmg) \
 160                 FIELD_SCALAR(fld, dmg_edge) \
 161                 FIELD_SCALAR(fld, dmg_force) \
 162                 FIELD_SCALAR(fld, dmg_radius) \
 163                 FIELD_SCALAR(fld, effects) \
 164                 FIELD_SCALAR(fld, flags) \
 165                 FIELD_SCALAR(fld, fog) \
 166                 FIELD_SCALAR(fld, frags) \
 167                 FIELD_SCALAR(fld, frame) \
 168                 FIELD_SCALAR(fld, gametypefilter) \
 169                 FIELD_SCALAR(fld, geomtype) \
 170                 FIELD_SCALAR(fld, gravity) \
 171                 FIELD_SCALAR(fld, health) \
 172                 FIELD_SCALAR(fld, height) \
 173                 FIELD_SCALAR(fld, impulse) \
 174                 FIELD_SCALAR(fld, killtarget) \
 175                 FIELD_SCALAR(fld, lerpfrac) \
 176                 FIELD_SCALAR(fld, light_lev) \
 177                 FIELD_SCALAR(fld, lip) \
 178                 FIELD_SCALAR(fld, loddistance1) \
 179                 FIELD_SCALAR(fld, lodmodel1) \
 180                 FIELD_SCALAR(fld, ltime) \
 181                 FIELD_SCALAR(fld, map) \
 182                 FIELD_SCALAR(fld, mdl) \
 183                 FIELD_SCALAR(fld, message2) \
 184                 FIELD_SCALAR(fld, message) \
 185                 FIELD_SCALAR(fld, modelindex) \
 186                 FIELD_SCALAR(fld, modelscale) \
 187                 FIELD_SCALAR(fld, model) \
 188                 FIELD_SCALAR(fld, monsterid) \
 189                 FIELD_SCALAR(fld, monster_moveflags) \
 190                 FIELD_SCALAR(fld, monster_name) \
 191                 FIELD_SCALAR(fld, movetype) \
 192                 FIELD_SCALAR(fld, move_movetype) \
 193                 FIELD_SCALAR(fld, netname) \
 194                 FIELD_SCALAR(fld, nextthink) \
 195                 FIELD_SCALAR(fld, noalign) \
 196                 FIELD_SCALAR(fld, noise1) \
 197                 FIELD_SCALAR(fld, noise2) \
 198                 FIELD_SCALAR(fld, noise) \
 199                 FIELD_SCALAR(fld, phase) \
 200                 FIELD_SCALAR(fld, platmovetype) \
 201                 FIELD_SCALAR(fld, race_place) \
 202                 FIELD_SCALAR(fld, radius) \
 203                 FIELD_SCALAR(fld, respawntimestart) \
 204                 FIELD_SCALAR(fld, respawntimejitter) \
 205                 FIELD_SCALAR(fld, respawntime) \
 206                 FIELD_SCALAR(fld, restriction) \
 207                 FIELD_SCALAR(fld, scale) \
 208                 FIELD_SCALAR(fld, skin) \
 209                 FIELD_SCALAR(fld, solid) \
 210                 FIELD_SCALAR(fld, sound1) \
 211                 FIELD_SCALAR(fld, sounds) \
 212                 FIELD_SCALAR(fld, spawnflags) \
 213                 FIELD_SCALAR(fld, spawnmob) \
 214                 FIELD_SCALAR(fld, speed) \
 215                 FIELD_SCALAR(fld, strength) \
 216                 FIELD_SCALAR(fld, style) \
 217                 FIELD_SCALAR(fld, target2) \
 218                 FIELD_SCALAR(fld, target3) \
 219                 FIELD_SCALAR(fld, target4) \
 220                 FIELD_SCALAR(fld, targetname) \
 221                 FIELD_SCALAR(fld, target) \
 222                 FIELD_SCALAR(fld, target_random) \
 223                 FIELD_SCALAR(fld, target_range) \
 224                 FIELD_SCALAR(fld, team) \
 225                 FIELD_SCALAR(fld, turret_scale_health) \
 226                 FIELD_SCALAR(fld, turret_scale_range) \
 227                 FIELD_SCALAR(fld, turret_scale_respawn) \
 228                 FIELD_SCALAR(fld, volume) \
 229                 FIELD_SCALAR(fld, wait) \
 230                 FIELD_SCALAR(fld, warpzone_fadeend) \
 231                 FIELD_SCALAR(fld, warpzone_fadestart) \
 232                 FIELD_SCALAR(fld, weapon) \
 233                 FIELD_SCALAR(fld, worldtype) \
 234                 FIELD_VEC(fld, absmax) \
 235                 FIELD_VEC(fld, absmin) \
 236                 FIELD_VEC(fld, angles) \
 237                 FIELD_VEC(fld, avelocity) \
 238                 FIELD_VEC(fld, color) \
 239                 FIELD_VEC(fld, mangle) \
 240                 FIELD_VEC(fld, maxs) \
 241                 FIELD_VEC(fld, maxs) \
 242                 FIELD_VEC(fld, mins) \
 243                 FIELD_VEC(fld, modelscale_vec) \
 244                 FIELD_VEC(fld, velocity) \
 245                 /**/
 246
 247         #define spawnfunc(...) EVAL_spawnfunc(OVERLOAD(spawnfunc, __VA_ARGS__))
 248         #define EVAL_spawnfunc(...) __VA_ARGS__