src/script/lua_api/l_object.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "lua_api/l_object.h"
  21 #include <cmath>
  22 #include "lua_api/l_internal.h"
  23 #include "lua_api/l_inventory.h"
  24 #include "lua_api/l_item.h"
  25 #include "lua_api/l_playermeta.h"
  26 #include "common/c_converter.h"
  27 #include "common/c_content.h"
  28 #include "log.h"
  29 #include "tool.h"
  30 #include "serverobject.h"
  31 #include "content_sao.h"
  32 #include "remoteplayer.h"
  33 #include "server.h"
  34 #include "hud.h"
  35 #include "scripting_server.h"
  36
  37 /*
  38         ObjectRef
  39 */
  40
  41
  42 ObjectRef* ObjectRef::checkobject(lua_State *L, int narg)
  43 {
  44         luaL_checktype(L, narg, LUA_TUSERDATA);
  45         void *ud = luaL_checkudata(L, narg, className);
  46         if (!ud) luaL_typerror(L, narg, className);
  47         return *(ObjectRef**)ud;  // unbox pointer
  48 }
  49
  50 ServerActiveObject* ObjectRef::getobject(ObjectRef *ref)
  51 {
  52         ServerActiveObject *co = ref->m_object;
  53         return co;
  54 }
  55
  56 LuaEntitySAO* ObjectRef::getluaobject(ObjectRef *ref)
  57 {
  58         ServerActiveObject *obj = getobject(ref);
  59         if (obj == NULL)
  60                 return NULL;
  61         if (obj->getType() != ACTIVEOBJECT_TYPE_LUAENTITY)
  62                 return NULL;
  63         return (LuaEntitySAO*)obj;
  64 }
  65
  66 PlayerSAO* ObjectRef::getplayersao(ObjectRef *ref)
  67 {
  68         ServerActiveObject *obj = getobject(ref);
  69         if (obj == NULL)
  70                 return NULL;
  71         if (obj->getType() != ACTIVEOBJECT_TYPE_PLAYER)
  72                 return NULL;
  73         return (PlayerSAO*)obj;
  74 }
  75
  76 RemotePlayer *ObjectRef::getplayer(ObjectRef *ref)
  77 {
  78         PlayerSAO *playersao = getplayersao(ref);
  79         if (playersao == NULL)
  80                 return NULL;
  81         return playersao->getPlayer();
  82 }
  83
  84 // Exported functions
  85
  86 // garbage collector
  87 int ObjectRef::gc_object(lua_State *L) {
  88         ObjectRef *o = *(ObjectRef **)(lua_touserdata(L, 1));
  89         //infostream<<"ObjectRef::gc_object: o="<<o<<std::endl;
  90         delete o;
  91         return 0;
  92 }
  93
  94 // remove(self)
  95 int ObjectRef::l_remove(lua_State *L)
  96 {
  97         GET_ENV_PTR;
  98
  99         ObjectRef *ref = checkobject(L, 1);
 100         ServerActiveObject *co = getobject(ref);
 101         if (co == NULL)
 102                 return 0;
 103         if (co->getType() == ACTIVEOBJECT_TYPE_PLAYER)
 104                 return 0;
 105
 106         co->clearChildAttachments();
 107         co->clearParentAttachment();
 108
 109         verbosestream << "ObjectRef::l_remove(): id=" << co->getId() << std::endl;
 110         co->m_pending_removal = true;
 111         return 0;
 112 }
 113
 114 // get_pos(self)
 115 // returns: {x=num, y=num, z=num}
 116 int ObjectRef::l_get_pos(lua_State *L)
 117 {
 118         NO_MAP_LOCK_REQUIRED;
 119         ObjectRef *ref = checkobject(L, 1);
 120         ServerActiveObject *co = getobject(ref);
 121         if (co == NULL) return 0;
 122         v3f pos = co->getBasePosition() / BS;
 123         lua_newtable(L);
 124         lua_pushnumber(L, pos.X);
 125         lua_setfield(L, -2, "x");
 126         lua_pushnumber(L, pos.Y);
 127         lua_setfield(L, -2, "y");
 128         lua_pushnumber(L, pos.Z);
 129         lua_setfield(L, -2, "z");
 130         return 1;
 131 }
 132
 133 // set_pos(self, pos)
 134 int ObjectRef::l_set_pos(lua_State *L)
 135 {
 136         NO_MAP_LOCK_REQUIRED;
 137         ObjectRef *ref = checkobject(L, 1);
 138         //LuaEntitySAO *co = getluaobject(ref);
 139         ServerActiveObject *co = getobject(ref);
 140         if (co == NULL) return 0;
 141         // pos
 142         v3f pos = checkFloatPos(L, 2);
 143         // Do it
 144         co->setPos(pos);
 145         return 0;
 146 }
 147
 148 // move_to(self, pos, continuous=false)
 149 int ObjectRef::l_move_to(lua_State *L)
 150 {
 151         NO_MAP_LOCK_REQUIRED;
 152         ObjectRef *ref = checkobject(L, 1);
 153         //LuaEntitySAO *co = getluaobject(ref);
 154         ServerActiveObject *co = getobject(ref);
 155         if (co == NULL) return 0;
 156         // pos
 157         v3f pos = checkFloatPos(L, 2);
 158         // continuous
 159         bool continuous = readParam<bool>(L, 3);
 160         // Do it
 161         co->moveTo(pos, continuous);
 162         return 0;
 163 }
 164
 165 // punch(self, puncher, time_from_last_punch, tool_capabilities, dir)
 166 int ObjectRef::l_punch(lua_State *L)
 167 {
 168         NO_MAP_LOCK_REQUIRED;
 169         ObjectRef *ref = checkobject(L, 1);
 170         ObjectRef *puncher_ref = checkobject(L, 2);
 171         ServerActiveObject *co = getobject(ref);
 172         ServerActiveObject *puncher = getobject(puncher_ref);
 173         if (!co || !puncher)
 174                 return 0;
 175         v3f dir;
 176         if (lua_type(L, 5) != LUA_TTABLE)
 177                 dir = co->getBasePosition() - puncher->getBasePosition();
 178         else
 179                 dir = read_v3f(L, 5);
 180         float time_from_last_punch = 1000000;
 181         if (lua_isnumber(L, 3))
 182                 time_from_last_punch = lua_tonumber(L, 3);
 183         ToolCapabilities toolcap = read_tool_capabilities(L, 4);
 184         dir.normalize();
 185
 186         u16 src_original_hp = co->getHP();
 187         u16 dst_origin_hp = puncher->getHP();
 188
 189         // Do it
 190         co->punch(dir, &toolcap, puncher, time_from_last_punch);
 191
 192         // If the punched is a player, and its HP changed
 193         if (src_original_hp != co->getHP() &&
 194                         co->getType() == ACTIVEOBJECT_TYPE_PLAYER) {
 195                 getServer(L)->SendPlayerHPOrDie((PlayerSAO *)co,
 196                                 PlayerHPChangeReason(PlayerHPChangeReason::PLAYER_PUNCH, puncher));
 197         }
 198
 199         // If the puncher is a player, and its HP changed
 200         if (dst_origin_hp != puncher->getHP() &&
 201                         puncher->getType() == ACTIVEOBJECT_TYPE_PLAYER) {
 202                 getServer(L)->SendPlayerHPOrDie((PlayerSAO *)puncher,
 203                                 PlayerHPChangeReason(PlayerHPChangeReason::PLAYER_PUNCH, co));
 204         }
 205         return 0;
 206 }
 207
 208 // right_click(self, clicker); clicker = an another ObjectRef
 209 int ObjectRef::l_right_click(lua_State *L)
 210 {
 211         NO_MAP_LOCK_REQUIRED;
 212         ObjectRef *ref = checkobject(L, 1);
 213         ObjectRef *ref2 = checkobject(L, 2);
 214         ServerActiveObject *co = getobject(ref);
 215         ServerActiveObject *co2 = getobject(ref2);
 216         if (co == NULL) return 0;
 217         if (co2 == NULL) return 0;
 218         // Do it
 219         co->rightClick(co2);
 220         return 0;
 221 }
 222
 223 // set_hp(self, hp)
 224 // hp = number of hitpoints (2 * number of hearts)
 225 // returns: nil
 226 int ObjectRef::l_set_hp(lua_State *L)
 227 {
 228         NO_MAP_LOCK_REQUIRED;
 229
 230         // Get Object
 231         ObjectRef *ref = checkobject(L, 1);
 232         luaL_checknumber(L, 2);
 233         ServerActiveObject *co = getobject(ref);
 234         if (co == NULL)
 235                 return 0;
 236
 237         // Get HP
 238         int hp = lua_tonumber(L, 2);
 239
 240         // Get Reason
 241         PlayerHPChangeReason reason(PlayerHPChangeReason::SET_HP);
 242         reason.from_mod = true;
 243         if (lua_istable(L, 3)) {
 244                 lua_pushvalue(L, 3);
 245
 246                 lua_getfield(L, -1, "type");
 247                 if (lua_isstring(L, -1) &&
 248                                 !reason.setTypeFromString(readParam<std::string>(L, -1))) {
 249                         errorstream << "Bad type given!" << std::endl;
 250                 }
 251                 lua_pop(L, 1);
 252
 253                 reason.lua_reference = luaL_ref(L, LUA_REGISTRYINDEX);
 254         }
 255
 256         // Do it
 257         co->setHP(hp, reason);
 258         if (co->getType() == ACTIVEOBJECT_TYPE_PLAYER)
 259                 getServer(L)->SendPlayerHPOrDie((PlayerSAO *)co, reason);
 260
 261         if (reason.hasLuaReference())
 262                 luaL_unref(L, LUA_REGISTRYINDEX, reason.lua_reference);
 263
 264         // Return
 265         return 0;
 266 }
 267
 268 // get_hp(self)
 269 // returns: number of hitpoints (2 * number of hearts)
 270 // 0 if not applicable to this type of object
 271 int ObjectRef::l_get_hp(lua_State *L)
 272 {
 273         NO_MAP_LOCK_REQUIRED;
 274         ObjectRef *ref = checkobject(L, 1);
 275         ServerActiveObject *co = getobject(ref);
 276         if (co == NULL) {
 277                 // Default hp is 1
 278                 lua_pushnumber(L, 1);
 279                 return 1;
 280         }
 281         int hp = co->getHP();
 282         /*infostream<<"ObjectRef::l_get_hp(): id="<<co->getId()
 283                         <<" hp="<<hp<<std::endl;*/
 284         // Return
 285         lua_pushnumber(L, hp);
 286         return 1;
 287 }
 288
 289 // get_inventory(self)
 290 int ObjectRef::l_get_inventory(lua_State *L)
 291 {
 292         NO_MAP_LOCK_REQUIRED;
 293         ObjectRef *ref = checkobject(L, 1);
 294         ServerActiveObject *co = getobject(ref);
 295         if (co == NULL) return 0;
 296         // Do it
 297         InventoryLocation loc = co->getInventoryLocation();
 298         if (getServer(L)->getInventory(loc) != NULL)
 299                 InvRef::create(L, loc);
 300         else
 301                 lua_pushnil(L); // An object may have no inventory (nil)
 302         return 1;
 303 }
 304
 305 // get_wield_list(self)
 306 int ObjectRef::l_get_wield_list(lua_State *L)
 307 {
 308         NO_MAP_LOCK_REQUIRED;
 309         ObjectRef *ref = checkobject(L, 1);
 310         ServerActiveObject *co = getobject(ref);
 311         if (co == NULL) return 0;
 312         // Do it
 313         lua_pushstring(L, co->getWieldList().c_str());
 314         return 1;
 315 }
 316
 317 // get_wield_index(self)
 318 int ObjectRef::l_get_wield_index(lua_State *L)
 319 {
 320         NO_MAP_LOCK_REQUIRED;
 321         ObjectRef *ref = checkobject(L, 1);
 322         ServerActiveObject *co = getobject(ref);
 323         if (co == NULL) return 0;
 324         // Do it
 325         lua_pushinteger(L, co->getWieldIndex() + 1);
 326         return 1;
 327 }
 328
 329 // get_wielded_item(self)
 330 int ObjectRef::l_get_wielded_item(lua_State *L)
 331 {
 332         NO_MAP_LOCK_REQUIRED;
 333         ObjectRef *ref = checkobject(L, 1);
 334         ServerActiveObject *co = getobject(ref);
 335         if (co == NULL) {
 336                 // Empty ItemStack
 337                 LuaItemStack::create(L, ItemStack());
 338                 return 1;
 339         }
 340         // Do it
 341         LuaItemStack::create(L, co->getWieldedItem());
 342         return 1;
 343 }
 344
 345 // set_wielded_item(self, itemstack or itemstring or table or nil)
 346 int ObjectRef::l_set_wielded_item(lua_State *L)
 347 {
 348         NO_MAP_LOCK_REQUIRED;
 349         ObjectRef *ref = checkobject(L, 1);
 350         ServerActiveObject *co = getobject(ref);
 351         if (co == NULL) return 0;
 352         // Do it
 353         ItemStack item = read_item(L, 2, getServer(L)->idef());
 354         bool success = co->setWieldedItem(item);
 355         if (success && co->getType() == ACTIVEOBJECT_TYPE_PLAYER) {
 356                 getServer(L)->SendInventory(((PlayerSAO*)co));
 357         }
 358         lua_pushboolean(L, success);
 359         return 1;
 360 }
 361
 362 // set_armor_groups(self, groups)
 363 int ObjectRef::l_set_armor_groups(lua_State *L)
 364 {
 365         NO_MAP_LOCK_REQUIRED;
 366         ObjectRef *ref = checkobject(L, 1);
 367         ServerActiveObject *co = getobject(ref);
 368         if (co == NULL) return 0;
 369         // Do it
 370         ItemGroupList groups;
 371         read_groups(L, 2, groups);
 372         co->setArmorGroups(groups);
 373         return 0;
 374 }
 375
 376 // get_armor_groups(self)
 377 int ObjectRef::l_get_armor_groups(lua_State *L)
 378 {
 379         NO_MAP_LOCK_REQUIRED;
 380         ObjectRef *ref = checkobject(L, 1);
 381         ServerActiveObject *co = getobject(ref);
 382         if (co == NULL)
 383                 return 0;
 384         // Do it
 385         push_groups(L, co->getArmorGroups());
 386         return 1;
 387 }
 388
 389 // set_physics_override(self, physics_override_speed, physics_override_jump,
 390 //                      physics_override_gravity, sneak, sneak_glitch, new_move)
 391 int ObjectRef::l_set_physics_override(lua_State *L)
 392 {
 393         NO_MAP_LOCK_REQUIRED;
 394         ObjectRef *ref = checkobject(L, 1);
 395         PlayerSAO *co = (PlayerSAO *) getobject(ref);
 396         if (co == NULL) return 0;
 397         // Do it
 398         if (lua_istable(L, 2)) {
 399                 co->m_physics_override_speed = getfloatfield_default(
 400                                 L, 2, "speed", co->m_physics_override_speed);
 401                 co->m_physics_override_jump = getfloatfield_default(
 402                                 L, 2, "jump", co->m_physics_override_jump);
 403                 co->m_physics_override_gravity = getfloatfield_default(
 404                                 L, 2, "gravity", co->m_physics_override_gravity);
 405                 co->m_physics_override_sneak = getboolfield_default(
 406                                 L, 2, "sneak", co->m_physics_override_sneak);
 407                 co->m_physics_override_sneak_glitch = getboolfield_default(
 408                                 L, 2, "sneak_glitch", co->m_physics_override_sneak_glitch);
 409                 co->m_physics_override_new_move = getboolfield_default(
 410                                 L, 2, "new_move", co->m_physics_override_new_move);
 411                 co->m_physics_override_sent = false;
 412         } else {
 413                 // old, non-table format
 414                 if (!lua_isnil(L, 2)) {
 415                         co->m_physics_override_speed = lua_tonumber(L, 2);
 416                         co->m_physics_override_sent = false;
 417                 }
 418                 if (!lua_isnil(L, 3)) {
 419                         co->m_physics_override_jump = lua_tonumber(L, 3);
 420                         co->m_physics_override_sent = false;
 421                 }
 422                 if (!lua_isnil(L, 4)) {
 423                         co->m_physics_override_gravity = lua_tonumber(L, 4);
 424                         co->m_physics_override_sent = false;
 425                 }
 426         }
 427         return 0;
 428 }
 429
 430 // get_physics_override(self)
 431 int ObjectRef::l_get_physics_override(lua_State *L)
 432 {
 433         NO_MAP_LOCK_REQUIRED;
 434         ObjectRef *ref = checkobject(L, 1);
 435         PlayerSAO *co = (PlayerSAO *)getobject(ref);
 436         if (co == NULL)
 437                 return 0;
 438         // Do it
 439         lua_newtable(L);
 440         lua_pushnumber(L, co->m_physics_override_speed);
 441         lua_setfield(L, -2, "speed");
 442         lua_pushnumber(L, co->m_physics_override_jump);
 443         lua_setfield(L, -2, "jump");
 444         lua_pushnumber(L, co->m_physics_override_gravity);
 445         lua_setfield(L, -2, "gravity");
 446         lua_pushboolean(L, co->m_physics_override_sneak);
 447         lua_setfield(L, -2, "sneak");
 448         lua_pushboolean(L, co->m_physics_override_sneak_glitch);
 449         lua_setfield(L, -2, "sneak_glitch");
 450         lua_pushboolean(L, co->m_physics_override_new_move);
 451         lua_setfield(L, -2, "new_move");
 452         return 1;
 453 }
 454
 455 // set_animation(self, frame_range, frame_speed, frame_blend, frame_loop)
 456 int ObjectRef::l_set_animation(lua_State *L)
 457 {
 458         NO_MAP_LOCK_REQUIRED;
 459         ObjectRef *ref = checkobject(L, 1);
 460         ServerActiveObject *co = getobject(ref);
 461         if (co == NULL) return 0;
 462         // Do it
 463         v2f frames = v2f(1, 1);
 464         if (!lua_isnil(L, 2))
 465                 frames = readParam<v2f>(L, 2);
 466         float frame_speed = 15;
 467         if (!lua_isnil(L, 3))
 468                 frame_speed = lua_tonumber(L, 3);
 469         float frame_blend = 0;
 470         if (!lua_isnil(L, 4))
 471                 frame_blend = lua_tonumber(L, 4);
 472         bool frame_loop = true;
 473         if (lua_isboolean(L, 5))
 474                 frame_loop = readParam<bool>(L, 5);
 475         co->setAnimation(frames, frame_speed, frame_blend, frame_loop);
 476         return 0;
 477 }
 478
 479 // get_animation(self)
 480 int ObjectRef::l_get_animation(lua_State *L)
 481 {
 482         NO_MAP_LOCK_REQUIRED;
 483         ObjectRef *ref = checkobject(L, 1);
 484         ServerActiveObject *co = getobject(ref);
 485         if (co == NULL)
 486                 return 0;
 487         // Do it
 488         v2f frames = v2f(1,1);
 489         float frame_speed = 15;
 490         float frame_blend = 0;
 491         bool frame_loop = true;
 492         co->getAnimation(&frames, &frame_speed, &frame_blend, &frame_loop);
 493
 494         push_v2f(L, frames);
 495         lua_pushnumber(L, frame_speed);
 496         lua_pushnumber(L, frame_blend);
 497         lua_pushboolean(L, frame_loop);
 498         return 4;
 499 }
 500
 501 // set_local_animation(self, {stand/idle}, {walk}, {dig}, {walk+dig}, frame_speed)
 502 int ObjectRef::l_set_local_animation(lua_State *L)
 503 {
 504         NO_MAP_LOCK_REQUIRED;
 505         ObjectRef *ref = checkobject(L, 1);
 506         RemotePlayer *player = getplayer(ref);
 507         if (player == NULL)
 508                 return 0;
 509         // Do it
 510         v2s32 frames[4];
 511         for (int i=0;i<4;i++) {
 512                 if (!lua_isnil(L, 2+1))
 513                         frames[i] = read_v2s32(L, 2+i);
 514         }
 515         float frame_speed = 30;
 516         if (!lua_isnil(L, 6))
 517                 frame_speed = lua_tonumber(L, 6);
 518
 519         getServer(L)->setLocalPlayerAnimations(player, frames, frame_speed);
 520         lua_pushboolean(L, true);
 521         return 1;
 522 }
 523
 524 // get_local_animation(self)
 525 int ObjectRef::l_get_local_animation(lua_State *L)
 526 {
 527         NO_MAP_LOCK_REQUIRED
 528         ObjectRef *ref = checkobject(L, 1);
 529         RemotePlayer *player = getplayer(ref);
 530         if (player == NULL)
 531                 return 0;
 532
 533         v2s32 frames[4];
 534         float frame_speed;
 535         player->getLocalAnimations(frames, &frame_speed);
 536
 537         for (const v2s32 &frame : frames) {
 538                 push_v2s32(L, frame);
 539         }
 540
 541         lua_pushnumber(L, frame_speed);
 542         return 5;
 543 }
 544
 545 // set_eye_offset(self, v3f first pv, v3f third pv)
 546 int ObjectRef::l_set_eye_offset(lua_State *L)
 547 {
 548         NO_MAP_LOCK_REQUIRED;
 549         ObjectRef *ref = checkobject(L, 1);
 550         RemotePlayer *player = getplayer(ref);
 551         if (player == NULL)
 552                 return 0;
 553         // Do it
 554         v3f offset_first = v3f(0, 0, 0);
 555         v3f offset_third = v3f(0, 0, 0);
 556
 557         if (!lua_isnil(L, 2))
 558                 offset_first = read_v3f(L, 2);
 559         if (!lua_isnil(L, 3))
 560                 offset_third = read_v3f(L, 3);
 561
 562         // Prevent abuse of offset values (keep player always visible)
 563         offset_third.X = rangelim(offset_third.X,-10,10);
 564         offset_third.Z = rangelim(offset_third.Z,-5,5);
 565         /* TODO: if possible: improve the camera colision detetion to allow Y <= -1.5) */
 566         offset_third.Y = rangelim(offset_third.Y,-10,15); //1.5*BS
 567
 568         getServer(L)->setPlayerEyeOffset(player, offset_first, offset_third);
 569         lua_pushboolean(L, true);
 570         return 1;
 571 }
 572
 573 // get_eye_offset(self)
 574 int ObjectRef::l_get_eye_offset(lua_State *L)
 575 {
 576         NO_MAP_LOCK_REQUIRED;
 577         ObjectRef *ref = checkobject(L, 1);
 578         RemotePlayer *player = getplayer(ref);
 579         if (player == NULL)
 580                 return 0;
 581         // Do it
 582         push_v3f(L, player->eye_offset_first);
 583         push_v3f(L, player->eye_offset_third);
 584         return 2;
 585 }
 586
 587 // send_mapblock(self, pos)
 588 int ObjectRef::l_send_mapblock(lua_State *L)
 589 {
 590         NO_MAP_LOCK_REQUIRED;
 591         ObjectRef *ref = checkobject(L, 1);
 592
 593         RemotePlayer *player = getplayer(ref);
 594         if (!player)
 595                 return 0;
 596         v3s16 p = read_v3s16(L, 2);
 597
 598         session_t peer_id = player->getPeerId();
 599         bool r = getServer(L)->SendBlock(peer_id, p);
 600
 601         lua_pushboolean(L, r);
 602         return 1;
 603 }
 604
 605 // set_animation_frame_speed(self, frame_speed)
 606 int ObjectRef::l_set_animation_frame_speed(lua_State *L)
 607 {
 608         NO_MAP_LOCK_REQUIRED;
 609         ObjectRef *ref = checkobject(L, 1);
 610         ServerActiveObject *co = getobject(ref);
 611         if (co == NULL)
 612                 return 0;
 613
 614         // Do it
 615         if (!lua_isnil(L, 2)) {
 616                 float frame_speed = lua_tonumber(L, 2);
 617                 co->setAnimationSpeed(frame_speed);
 618                 lua_pushboolean(L, true);
 619         } else {
 620                 lua_pushboolean(L, false);
 621         }
 622         return 1;
 623 }
 624
 625 // set_bone_position(self, std::string bone, v3f position, v3f rotation)
 626 int ObjectRef::l_set_bone_position(lua_State *L)
 627 {
 628         NO_MAP_LOCK_REQUIRED;
 629         ObjectRef *ref = checkobject(L, 1);
 630         ServerActiveObject *co = getobject(ref);
 631         if (co == NULL) return 0;
 632         // Do it
 633         std::string bone;
 634         if (!lua_isnil(L, 2))
 635                 bone = readParam<std::string>(L, 2);
 636         v3f position = v3f(0, 0, 0);
 637         if (!lua_isnil(L, 3))
 638                 position = check_v3f(L, 3);
 639         v3f rotation = v3f(0, 0, 0);
 640         if (!lua_isnil(L, 4))
 641                 rotation = check_v3f(L, 4);
 642         co->setBonePosition(bone, position, rotation);
 643         return 0;
 644 }
 645
 646 // get_bone_position(self, bone)
 647 int ObjectRef::l_get_bone_position(lua_State *L)
 648 {
 649         NO_MAP_LOCK_REQUIRED;
 650         ObjectRef *ref = checkobject(L, 1);
 651         ServerActiveObject *co = getobject(ref);
 652         if (co == NULL)
 653                 return 0;
 654         // Do it
 655         std::string bone;
 656         if (!lua_isnil(L, 2))
 657                 bone = readParam<std::string>(L, 2);
 658
 659         v3f position = v3f(0, 0, 0);
 660         v3f rotation = v3f(0, 0, 0);
 661         co->getBonePosition(bone, &position, &rotation);
 662
 663         push_v3f(L, position);
 664         push_v3f(L, rotation);
 665         return 2;
 666 }
 667
 668 // set_attach(self, parent, bone, position, rotation)
 669 int ObjectRef::l_set_attach(lua_State *L)
 670 {
 671         GET_ENV_PTR;
 672
 673         ObjectRef *ref = checkobject(L, 1);
 674         ObjectRef *parent_ref = checkobject(L, 2);
 675         ServerActiveObject *co = getobject(ref);
 676         ServerActiveObject *parent = getobject(parent_ref);
 677         if (co == NULL)
 678                 return 0;
 679         if (parent == NULL)
 680                 return 0;
 681         // Do it
 682         int parent_id = 0;
 683         std::string bone;
 684         v3f position = v3f(0, 0, 0);
 685         v3f rotation = v3f(0, 0, 0);
 686         co->getAttachment(&parent_id, &bone, &position, &rotation);
 687         if (parent_id) {
 688                 ServerActiveObject *old_parent = env->getActiveObject(parent_id);
 689                 old_parent->removeAttachmentChild(co->getId());
 690         }
 691
 692         bone = "";
 693         if (!lua_isnil(L, 3))
 694                 bone = readParam<std::string>(L, 3);
 695         position = v3f(0, 0, 0);
 696         if (!lua_isnil(L, 4))
 697                 position = read_v3f(L, 4);
 698         rotation = v3f(0, 0, 0);
 699         if (!lua_isnil(L, 5))
 700                 rotation = read_v3f(L, 5);
 701         co->setAttachment(parent->getId(), bone, position, rotation);
 702         parent->addAttachmentChild(co->getId());
 703         return 0;
 704 }
 705
 706 // get_attach(self)
 707 int ObjectRef::l_get_attach(lua_State *L)
 708 {
 709         GET_ENV_PTR;
 710
 711         ObjectRef *ref = checkobject(L, 1);
 712         ServerActiveObject *co = getobject(ref);
 713         if (co == NULL)
 714                 return 0;
 715
 716         // Do it
 717         int parent_id = 0;
 718         std::string bone;
 719         v3f position = v3f(0, 0, 0);
 720         v3f rotation = v3f(0, 0, 0);
 721         co->getAttachment(&parent_id, &bone, &position, &rotation);
 722         if (!parent_id)
 723                 return 0;
 724         ServerActiveObject *parent = env->getActiveObject(parent_id);
 725
 726         getScriptApiBase(L)->objectrefGetOrCreate(L, parent);
 727         lua_pushlstring(L, bone.c_str(), bone.size());
 728         push_v3f(L, position);
 729         push_v3f(L, rotation);
 730         return 4;
 731 }
 732
 733 // set_detach(self)
 734 int ObjectRef::l_set_detach(lua_State *L)
 735 {
 736         GET_ENV_PTR;
 737
 738         ObjectRef *ref = checkobject(L, 1);
 739         ServerActiveObject *co = getobject(ref);
 740         if (co == NULL)
 741                 return 0;
 742
 743         co->clearParentAttachment();
 744         return 0;
 745 }
 746
 747 // set_properties(self, properties)
 748 int ObjectRef::l_set_properties(lua_State *L)
 749 {
 750         NO_MAP_LOCK_REQUIRED;
 751         ObjectRef *ref = checkobject(L, 1);
 752         ServerActiveObject *co = getobject(ref);
 753         if (co == NULL) return 0;
 754         ObjectProperties *prop = co->accessObjectProperties();
 755         if (!prop)
 756                 return 0;
 757         read_object_properties(L, 2, prop, getServer(L)->idef());
 758         if (prop->hp_max < co->getHP()) {
 759                 PlayerHPChangeReason reason(PlayerHPChangeReason::SET_HP);
 760                 co->setHP(prop->hp_max, reason);
 761                 if (co->getType() == ACTIVEOBJECT_TYPE_PLAYER)
 762                         getServer(L)->SendPlayerHPOrDie((PlayerSAO *)co, reason);
 763         }
 764         co->notifyObjectPropertiesModified();
 765         return 0;
 766 }
 767
 768 // get_properties(self)
 769 int ObjectRef::l_get_properties(lua_State *L)
 770 {
 771         NO_MAP_LOCK_REQUIRED;
 772         ObjectRef *ref = checkobject(L, 1);
 773         ServerActiveObject *co = getobject(ref);
 774         if (co == NULL)
 775                 return 0;
 776         ObjectProperties *prop = co->accessObjectProperties();
 777         if (!prop)
 778                 return 0;
 779         push_object_properties(L, prop);
 780         return 1;
 781 }
 782
 783 // is_player(self)
 784 int ObjectRef::l_is_player(lua_State *L)
 785 {
 786         NO_MAP_LOCK_REQUIRED;
 787         ObjectRef *ref = checkobject(L, 1);
 788         RemotePlayer *player = getplayer(ref);
 789         lua_pushboolean(L, (player != NULL));
 790         return 1;
 791 }
 792
 793 // set_nametag_attributes(self, attributes)
 794 int ObjectRef::l_set_nametag_attributes(lua_State *L)
 795 {
 796         NO_MAP_LOCK_REQUIRED;
 797         ObjectRef *ref = checkobject(L, 1);
 798         ServerActiveObject *co = getobject(ref);
 799
 800         if (co == NULL)
 801                 return 0;
 802         ObjectProperties *prop = co->accessObjectProperties();
 803         if (!prop)
 804                 return 0;
 805
 806         lua_getfield(L, 2, "color");
 807         if (!lua_isnil(L, -1)) {
 808                 video::SColor color = prop->nametag_color;
 809                 read_color(L, -1, &color);
 810                 prop->nametag_color = color;
 811         }
 812         lua_pop(L, 1);
 813
 814         std::string nametag = getstringfield_default(L, 2, "text", "");
 815         prop->nametag = nametag;
 816
 817         co->notifyObjectPropertiesModified();
 818         lua_pushboolean(L, true);
 819         return 1;
 820 }
 821
 822 // get_nametag_attributes(self)
 823 int ObjectRef::l_get_nametag_attributes(lua_State *L)
 824 {
 825         NO_MAP_LOCK_REQUIRED;
 826         ObjectRef *ref = checkobject(L, 1);
 827         ServerActiveObject *co = getobject(ref);
 828
 829         if (co == NULL)
 830                 return 0;
 831         ObjectProperties *prop = co->accessObjectProperties();
 832         if (!prop)
 833                 return 0;
 834
 835         video::SColor color = prop->nametag_color;
 836
 837         lua_newtable(L);
 838         push_ARGB8(L, color);
 839         lua_setfield(L, -2, "color");
 840         lua_pushstring(L, prop->nametag.c_str());
 841         lua_setfield(L, -2, "text");
 842         return 1;
 843 }
 844
 845 /* LuaEntitySAO-only */
 846
 847 // set_velocity(self, {x=num, y=num, z=num})
 848 int ObjectRef::l_set_velocity(lua_State *L)
 849 {
 850         NO_MAP_LOCK_REQUIRED;
 851         ObjectRef *ref = checkobject(L, 1);
 852         LuaEntitySAO *co = getluaobject(ref);
 853         if (co == NULL) return 0;
 854         v3f pos = checkFloatPos(L, 2);
 855         // Do it
 856         co->setVelocity(pos);
 857         return 0;
 858 }
 859
 860 // add_velocity(self, {x=num, y=num, z=num})
 861 int ObjectRef::l_add_velocity(lua_State *L)
 862 {
 863         NO_MAP_LOCK_REQUIRED;
 864         ObjectRef *ref = checkobject(L, 1);
 865         LuaEntitySAO *co = getluaobject(ref);
 866         if (!co)
 867                 return 0;
 868         v3f pos = checkFloatPos(L, 2);
 869         // Do it
 870         co->addVelocity(pos);
 871         return 0;
 872 }
 873
 874 // get_velocity(self)
 875 int ObjectRef::l_get_velocity(lua_State *L)
 876 {
 877         NO_MAP_LOCK_REQUIRED;
 878         ObjectRef *ref = checkobject(L, 1);
 879         LuaEntitySAO *co = getluaobject(ref);
 880         if (co == NULL) return 0;
 881         // Do it
 882         v3f v = co->getVelocity();
 883         pushFloatPos(L, v);
 884         return 1;
 885 }
 886
 887 // set_acceleration(self, {x=num, y=num, z=num})
 888 int ObjectRef::l_set_acceleration(lua_State *L)
 889 {
 890         NO_MAP_LOCK_REQUIRED;
 891         ObjectRef *ref = checkobject(L, 1);
 892         LuaEntitySAO *co = getluaobject(ref);
 893         if (co == NULL) return 0;
 894         // pos
 895         v3f pos = checkFloatPos(L, 2);
 896         // Do it
 897         co->setAcceleration(pos);
 898         return 0;
 899 }
 900
 901 // get_acceleration(self)
 902 int ObjectRef::l_get_acceleration(lua_State *L)
 903 {
 904         NO_MAP_LOCK_REQUIRED;
 905         ObjectRef *ref = checkobject(L, 1);
 906         LuaEntitySAO *co = getluaobject(ref);
 907         if (co == NULL) return 0;
 908         // Do it
 909         v3f v = co->getAcceleration();
 910         pushFloatPos(L, v);
 911         return 1;
 912 }
 913
 914 // set_rotation(self, {x=num, y=num, z=num})
 915 // Each 'num' is in radians
 916 int ObjectRef::l_set_rotation(lua_State *L)
 917 {
 918         NO_MAP_LOCK_REQUIRED;
 919         ObjectRef *ref = checkobject(L, 1);
 920         LuaEntitySAO *co = getluaobject(ref);
 921         if (!co)
 922                 return 0;
 923
 924         v3f rotation = check_v3f(L, 2) * core::RADTODEG;
 925         co->setRotation(rotation);
 926         return 0;
 927 }
 928
 929 // get_rotation(self)
 930 // returns: {x=num, y=num, z=num}
 931 // Each 'num' is in radians
 932 int ObjectRef::l_get_rotation(lua_State *L)
 933 {
 934         NO_MAP_LOCK_REQUIRED;
 935         ObjectRef *ref = checkobject(L, 1);
 936         LuaEntitySAO *co = getluaobject(ref);
 937         if (!co)
 938                 return 0;
 939
 940         lua_newtable(L);
 941         v3f rotation = co->getRotation() * core::DEGTORAD;
 942         push_v3f(L, rotation);
 943         return 1;
 944 }
 945
 946 // set_yaw(self, radians)
 947 int ObjectRef::l_set_yaw(lua_State *L)
 948 {
 949         NO_MAP_LOCK_REQUIRED;
 950         ObjectRef *ref = checkobject(L, 1);
 951         LuaEntitySAO *co = getluaobject(ref);
 952
 953         if (co == NULL) return 0;
 954         if (isNaN(L, 2))
 955                 throw LuaError("ObjectRef::set_yaw: NaN value is not allowed.");
 956
 957         float yaw = readParam<float>(L, 2) * core::RADTODEG;
 958         co->setRotation(v3f(0, yaw, 0));
 959         return 0;
 960 }
 961
 962 // get_yaw(self)
 963 int ObjectRef::l_get_yaw(lua_State *L)
 964 {
 965         NO_MAP_LOCK_REQUIRED;
 966         ObjectRef *ref = checkobject(L, 1);
 967         LuaEntitySAO *co = getluaobject(ref);
 968         if (!co)
 969                 return 0;
 970
 971         float yaw = co->getRotation().Y * core::DEGTORAD;
 972         lua_pushnumber(L, yaw);
 973         return 1;
 974 }
 975
 976 // set_texture_mod(self, mod)
 977 int ObjectRef::l_set_texture_mod(lua_State *L)
 978 {
 979         NO_MAP_LOCK_REQUIRED;
 980         ObjectRef *ref = checkobject(L, 1);
 981         LuaEntitySAO *co = getluaobject(ref);
 982         if (co == NULL) return 0;
 983         // Do it
 984         std::string mod = luaL_checkstring(L, 2);
 985         co->setTextureMod(mod);
 986         return 0;
 987 }
 988
 989 // get_texture_mod(self)
 990 int ObjectRef::l_get_texture_mod(lua_State *L)
 991 {
 992         NO_MAP_LOCK_REQUIRED;
 993         ObjectRef *ref = checkobject(L, 1);
 994         LuaEntitySAO *co = getluaobject(ref);
 995         if (co == NULL) return 0;
 996         // Do it
 997         std::string mod = co->getTextureMod();
 998         lua_pushstring(L, mod.c_str());
 999         return 1;
1000 }
1001
1002 // set_sprite(self, p={x=0,y=0}, num_frames=1, framelength=0.2,
1003 //           select_horiz_by_yawpitch=false)
1004 int ObjectRef::l_set_sprite(lua_State *L)
1005 {
1006         NO_MAP_LOCK_REQUIRED;
1007         ObjectRef *ref = checkobject(L, 1);
1008         LuaEntitySAO *co = getluaobject(ref);
1009         if (co == NULL) return 0;
1010         // Do it
1011         v2s16 p(0,0);
1012         if (!lua_isnil(L, 2))
1013                 p = readParam<v2s16>(L, 2);
1014         int num_frames = 1;
1015         if (!lua_isnil(L, 3))
1016                 num_frames = lua_tonumber(L, 3);
1017         float framelength = 0.2;
1018         if (!lua_isnil(L, 4))
1019                 framelength = lua_tonumber(L, 4);
1020         bool select_horiz_by_yawpitch = false;
1021         if (!lua_isnil(L, 5))
1022                 select_horiz_by_yawpitch = readParam<bool>(L, 5);
1023         co->setSprite(p, num_frames, framelength, select_horiz_by_yawpitch);
1024         return 0;
1025 }
1026
1027 // DEPRECATED
1028 // get_entity_name(self)
1029 int ObjectRef::l_get_entity_name(lua_State *L)
1030 {
1031         NO_MAP_LOCK_REQUIRED;
1032         ObjectRef *ref = checkobject(L, 1);
1033         LuaEntitySAO *co = getluaobject(ref);
1034         log_deprecated(L,"Deprecated call to \"get_entity_name");
1035         if (co == NULL) return 0;
1036         // Do it
1037         std::string name = co->getName();
1038         lua_pushstring(L, name.c_str());
1039         return 1;
1040 }
1041
1042 // get_luaentity(self)
1043 int ObjectRef::l_get_luaentity(lua_State *L)
1044 {
1045         NO_MAP_LOCK_REQUIRED;
1046         ObjectRef *ref = checkobject(L, 1);
1047         LuaEntitySAO *co = getluaobject(ref);
1048         if (co == NULL) return 0;
1049         // Do it
1050         luaentity_get(L, co->getId());
1051         return 1;
1052 }
1053
1054 /* Player-only */
1055
1056 // is_player_connected(self)
1057 int ObjectRef::l_is_player_connected(lua_State *L)
1058 {
1059         NO_MAP_LOCK_REQUIRED;
1060         ObjectRef *ref = checkobject(L, 1);
1061         RemotePlayer *player = getplayer(ref);
1062         lua_pushboolean(L, (player != NULL && player->getPeerId() != PEER_ID_INEXISTENT));
1063         return 1;
1064 }
1065
1066 // get_player_name(self)
1067 int ObjectRef::l_get_player_name(lua_State *L)
1068 {
1069         NO_MAP_LOCK_REQUIRED;
1070         ObjectRef *ref = checkobject(L, 1);
1071         RemotePlayer *player = getplayer(ref);
1072         if (player == NULL) {
1073                 lua_pushlstring(L, "", 0);
1074                 return 1;
1075         }
1076         // Do it
1077         lua_pushstring(L, player->getName());
1078         return 1;
1079 }
1080
1081 // get_player_velocity(self)
1082 int ObjectRef::l_get_player_velocity(lua_State *L)
1083 {
1084         NO_MAP_LOCK_REQUIRED;
1085         ObjectRef *ref = checkobject(L, 1);
1086         RemotePlayer *player = getplayer(ref);
1087         if (player == NULL) {
1088                 lua_pushnil(L);
1089                 return 1;
1090         }
1091         // Do it
1092         push_v3f(L, player->getSpeed() / BS);
1093         return 1;
1094 }
1095
1096 // get_look_dir(self)
1097 int ObjectRef::l_get_look_dir(lua_State *L)
1098 {
1099         NO_MAP_LOCK_REQUIRED;
1100         ObjectRef *ref = checkobject(L, 1);
1101         PlayerSAO* co = getplayersao(ref);
1102         if (co == NULL) return 0;
1103         // Do it
1104         float pitch = co->getRadLookPitchDep();
1105         float yaw = co->getRadYawDep();
1106         v3f v(std::cos(pitch) * std::cos(yaw), std::sin(pitch), std::cos(pitch) *
1107                 std::sin(yaw));
1108         push_v3f(L, v);
1109         return 1;
1110 }
1111
1112 // DEPRECATED
1113 // get_look_pitch(self)
1114 int ObjectRef::l_get_look_pitch(lua_State *L)
1115 {
1116         NO_MAP_LOCK_REQUIRED;
1117
1118         log_deprecated(L,
1119                 "Deprecated call to get_look_pitch, use get_look_vertical instead");
1120
1121         ObjectRef *ref = checkobject(L, 1);
1122         PlayerSAO* co = getplayersao(ref);
1123         if (co == NULL) return 0;
1124         // Do it
1125         lua_pushnumber(L, co->getRadLookPitchDep());
1126         return 1;
1127 }
1128
1129 // DEPRECATED
1130 // get_look_yaw(self)
1131 int ObjectRef::l_get_look_yaw(lua_State *L)
1132 {
1133         NO_MAP_LOCK_REQUIRED;
1134
1135         log_deprecated(L,
1136                 "Deprecated call to get_look_yaw, use get_look_horizontal instead");
1137
1138         ObjectRef *ref = checkobject(L, 1);
1139         PlayerSAO* co = getplayersao(ref);
1140         if (co == NULL) return 0;
1141         // Do it
1142         lua_pushnumber(L, co->getRadYawDep());
1143         return 1;
1144 }
1145
1146 // get_look_pitch2(self)
1147 int ObjectRef::l_get_look_vertical(lua_State *L)
1148 {
1149         NO_MAP_LOCK_REQUIRED;
1150         ObjectRef *ref = checkobject(L, 1);
1151         PlayerSAO* co = getplayersao(ref);
1152         if (co == NULL) return 0;
1153         // Do it
1154         lua_pushnumber(L, co->getRadLookPitch());
1155         return 1;
1156 }
1157
1158 // get_look_yaw2(self)
1159 int ObjectRef::l_get_look_horizontal(lua_State *L)
1160 {
1161         NO_MAP_LOCK_REQUIRED;
1162         ObjectRef *ref = checkobject(L, 1);
1163         PlayerSAO* co = getplayersao(ref);
1164         if (co == NULL) return 0;
1165         // Do it
1166         lua_pushnumber(L, co->getRadRotation().Y);
1167         return 1;
1168 }
1169
1170 // set_look_vertical(self, radians)
1171 int ObjectRef::l_set_look_vertical(lua_State *L)
1172 {
1173         NO_MAP_LOCK_REQUIRED;
1174         ObjectRef *ref = checkobject(L, 1);
1175         PlayerSAO* co = getplayersao(ref);
1176         if (co == NULL) return 0;
1177         float pitch = readParam<float>(L, 2) * core::RADTODEG;
1178         // Do it
1179         co->setLookPitchAndSend(pitch);
1180         return 1;
1181 }
1182
1183 // set_look_horizontal(self, radians)
1184 int ObjectRef::l_set_look_horizontal(lua_State *L)
1185 {
1186         NO_MAP_LOCK_REQUIRED;
1187         ObjectRef *ref = checkobject(L, 1);
1188         PlayerSAO* co = getplayersao(ref);
1189         if (co == NULL) return 0;
1190         float yaw = readParam<float>(L, 2) * core::RADTODEG;
1191         // Do it
1192         co->setPlayerYawAndSend(yaw);
1193         return 1;
1194 }
1195
1196 // DEPRECATED
1197 // set_look_pitch(self, radians)
1198 int ObjectRef::l_set_look_pitch(lua_State *L)
1199 {
1200         NO_MAP_LOCK_REQUIRED;
1201
1202         log_deprecated(L,
1203                 "Deprecated call to set_look_pitch, use set_look_vertical instead.");
1204
1205         ObjectRef *ref = checkobject(L, 1);
1206         PlayerSAO* co = getplayersao(ref);
1207         if (co == NULL) return 0;
1208         float pitch = readParam<float>(L, 2) * core::RADTODEG;
1209         // Do it
1210         co->setLookPitchAndSend(pitch);
1211         return 1;
1212 }
1213
1214 // DEPRECATED
1215 // set_look_yaw(self, radians)
1216 int ObjectRef::l_set_look_yaw(lua_State *L)
1217 {
1218         NO_MAP_LOCK_REQUIRED;
1219
1220         log_deprecated(L,
1221                 "Deprecated call to set_look_yaw, use set_look_horizontal instead.");
1222
1223         ObjectRef *ref = checkobject(L, 1);
1224         PlayerSAO* co = getplayersao(ref);
1225         if (co == NULL) return 0;
1226         float yaw = readParam<float>(L, 2) * core::RADTODEG;
1227         // Do it
1228         co->setPlayerYawAndSend(yaw);
1229         return 1;
1230 }
1231
1232 // set_breath(self, breath)
1233 int ObjectRef::l_set_breath(lua_State *L)
1234 {
1235         NO_MAP_LOCK_REQUIRED;
1236         ObjectRef *ref = checkobject(L, 1);
1237         PlayerSAO* co = getplayersao(ref);
1238         if (co == NULL) return 0;
1239         u16 breath = luaL_checknumber(L, 2);
1240         co->setBreath(breath);
1241
1242         return 0;
1243 }
1244
1245 // get_breath(self)
1246 int ObjectRef::l_get_breath(lua_State *L)
1247 {
1248         NO_MAP_LOCK_REQUIRED;
1249         ObjectRef *ref = checkobject(L, 1);
1250         PlayerSAO* co = getplayersao(ref);
1251         if (co == NULL) return 0;
1252         // Do it
1253         u16 breath = co->getBreath();
1254         lua_pushinteger (L, breath);
1255         return 1;
1256 }
1257
1258 // set_attribute(self, attribute, value)
1259 int ObjectRef::l_set_attribute(lua_State *L)
1260 {
1261         log_deprecated(L,
1262                 "Deprecated call to set_attribute, use MetaDataRef methods instead.");
1263
1264         ObjectRef *ref = checkobject(L, 1);
1265         PlayerSAO* co = getplayersao(ref);
1266         if (co == NULL)
1267                 return 0;
1268
1269         std::string attr = luaL_checkstring(L, 2);
1270         if (lua_isnil(L, 3)) {
1271                 co->getMeta().removeString(attr);
1272         } else {
1273                 std::string value = luaL_checkstring(L, 3);
1274                 co->getMeta().setString(attr, value);
1275         }
1276         return 1;
1277 }
1278
1279 // get_attribute(self, attribute)
1280 int ObjectRef::l_get_attribute(lua_State *L)
1281 {
1282         log_deprecated(L,
1283                 "Deprecated call to get_attribute, use MetaDataRef methods instead.");
1284
1285         ObjectRef *ref = checkobject(L, 1);
1286         PlayerSAO* co = getplayersao(ref);
1287         if (co == NULL)
1288                 return 0;
1289
1290         std::string attr = luaL_checkstring(L, 2);
1291
1292         std::string value;
1293         if (co->getMeta().getStringToRef(attr, value)) {
1294                 lua_pushstring(L, value.c_str());
1295                 return 1;
1296         }
1297
1298         return 0;
1299 }
1300
1301
1302 // get_meta(self, attribute)
1303 int ObjectRef::l_get_meta(lua_State *L)
1304 {
1305         ObjectRef *ref = checkobject(L, 1);
1306         PlayerSAO *co = getplayersao(ref);
1307         if (co == NULL)
1308                 return 0;
1309
1310         PlayerMetaRef::create(L, &co->getMeta());
1311         return 1;
1312 }
1313
1314
1315 // set_inventory_formspec(self, formspec)
1316 int ObjectRef::l_set_inventory_formspec(lua_State *L)
1317 {
1318         NO_MAP_LOCK_REQUIRED;
1319         ObjectRef *ref = checkobject(L, 1);
1320         RemotePlayer *player = getplayer(ref);
1321         if (player == NULL) return 0;
1322         std::string formspec = luaL_checkstring(L, 2);
1323
1324         player->inventory_formspec = formspec;
1325         getServer(L)->reportInventoryFormspecModified(player->getName());
1326         lua_pushboolean(L, true);
1327         return 1;
1328 }
1329
1330 // get_inventory_formspec(self) -> formspec
1331 int ObjectRef::l_get_inventory_formspec(lua_State *L)
1332 {
1333         NO_MAP_LOCK_REQUIRED;
1334         ObjectRef *ref = checkobject(L, 1);
1335         RemotePlayer *player = getplayer(ref);
1336         if (player == NULL) return 0;
1337
1338         std::string formspec = player->inventory_formspec;
1339         lua_pushlstring(L, formspec.c_str(), formspec.size());
1340         return 1;
1341 }
1342
1343 // set_formspec_prepend(self, formspec)
1344 int ObjectRef::l_set_formspec_prepend(lua_State *L)
1345 {
1346         NO_MAP_LOCK_REQUIRED;
1347         ObjectRef *ref = checkobject(L, 1);
1348         RemotePlayer *player = getplayer(ref);
1349         if (player == NULL)
1350                 return 0;
1351
1352         std::string formspec = luaL_checkstring(L, 2);
1353
1354         player->formspec_prepend = formspec;
1355         getServer(L)->reportFormspecPrependModified(player->getName());
1356         lua_pushboolean(L, true);
1357         return 1;
1358 }
1359
1360 // get_formspec_prepend(self) -> formspec
1361 int ObjectRef::l_get_formspec_prepend(lua_State *L)
1362 {
1363         NO_MAP_LOCK_REQUIRED;
1364         ObjectRef *ref = checkobject(L, 1);
1365         RemotePlayer *player = getplayer(ref);
1366         if (player == NULL)
1367                  return 0;
1368
1369         std::string formspec = player->formspec_prepend;
1370         lua_pushlstring(L, formspec.c_str(), formspec.size());
1371         return 1;
1372 }
1373
1374 // get_player_control(self)
1375 int ObjectRef::l_get_player_control(lua_State *L)
1376 {
1377         NO_MAP_LOCK_REQUIRED;
1378         ObjectRef *ref = checkobject(L, 1);
1379         RemotePlayer *player = getplayer(ref);
1380         if (player == NULL) {
1381                 lua_pushlstring(L, "", 0);
1382                 return 1;
1383         }
1384
1385         const PlayerControl &control = player->getPlayerControl();
1386         lua_newtable(L);
1387         lua_pushboolean(L, control.up);
1388         lua_setfield(L, -2, "up");
1389         lua_pushboolean(L, control.down);
1390         lua_setfield(L, -2, "down");
1391         lua_pushboolean(L, control.left);
1392         lua_setfield(L, -2, "left");
1393         lua_pushboolean(L, control.right);
1394         lua_setfield(L, -2, "right");
1395         lua_pushboolean(L, control.jump);
1396         lua_setfield(L, -2, "jump");
1397         lua_pushboolean(L, control.aux1);
1398         lua_setfield(L, -2, "aux1");
1399         lua_pushboolean(L, control.sneak);
1400         lua_setfield(L, -2, "sneak");
1401         lua_pushboolean(L, control.LMB);
1402         lua_setfield(L, -2, "LMB");
1403         lua_pushboolean(L, control.RMB);
1404         lua_setfield(L, -2, "RMB");
1405         return 1;
1406 }
1407
1408 // get_player_control_bits(self)
1409 int ObjectRef::l_get_player_control_bits(lua_State *L)
1410 {
1411         NO_MAP_LOCK_REQUIRED;
1412         ObjectRef *ref = checkobject(L, 1);
1413         RemotePlayer *player = getplayer(ref);
1414         if (player == NULL) {
1415                 lua_pushlstring(L, "", 0);
1416                 return 1;
1417         }
1418         // Do it
1419         lua_pushnumber(L, player->keyPressed);
1420         return 1;
1421 }
1422
1423 // hud_add(self, form)
1424 int ObjectRef::l_hud_add(lua_State *L)
1425 {
1426         NO_MAP_LOCK_REQUIRED;
1427         ObjectRef *ref = checkobject(L, 1);
1428         RemotePlayer *player = getplayer(ref);
1429         if (player == NULL)
1430                 return 0;
1431
1432         HudElement *elem = new HudElement;
1433         read_hud_element(L, elem);
1434
1435         u32 id = getServer(L)->hudAdd(player, elem);
1436         if (id == U32_MAX) {
1437                 delete elem;
1438                 return 0;
1439         }
1440
1441         lua_pushnumber(L, id);
1442         return 1;
1443 }
1444
1445 // hud_remove(self, id)
1446 int ObjectRef::l_hud_remove(lua_State *L)
1447 {
1448         NO_MAP_LOCK_REQUIRED;
1449         ObjectRef *ref = checkobject(L, 1);
1450         RemotePlayer *player = getplayer(ref);
1451         if (player == NULL)
1452                 return 0;
1453
1454         u32 id = -1;
1455         if (!lua_isnil(L, 2))
1456                 id = lua_tonumber(L, 2);
1457
1458         if (!getServer(L)->hudRemove(player, id))
1459                 return 0;
1460
1461         lua_pushboolean(L, true);
1462         return 1;
1463 }
1464
1465 // hud_change(self, id, stat, data)
1466 int ObjectRef::l_hud_change(lua_State *L)
1467 {
1468         NO_MAP_LOCK_REQUIRED;
1469         ObjectRef *ref = checkobject(L, 1);
1470         RemotePlayer *player = getplayer(ref);
1471         if (player == NULL)
1472                 return 0;
1473
1474         u32 id = lua_isnumber(L, 2) ? lua_tonumber(L, 2) : -1;
1475
1476         HudElement *e = player->getHud(id);
1477         if (!e)
1478                 return 0;
1479
1480         void *value = NULL;
1481         HudElementStat stat = read_hud_change(L, e, &value);
1482
1483         getServer(L)->hudChange(player, id, stat, value);
1484
1485         lua_pushboolean(L, true);
1486         return 1;
1487 }
1488
1489 // hud_get(self, id)
1490 int ObjectRef::l_hud_get(lua_State *L)
1491 {
1492         NO_MAP_LOCK_REQUIRED;
1493         ObjectRef *ref = checkobject(L, 1);
1494         RemotePlayer *player = getplayer(ref);
1495         if (player == NULL)
1496                 return 0;
1497
1498         u32 id = lua_tonumber(L, -1);
1499
1500         HudElement *e = player->getHud(id);
1501         if (!e)
1502                 return 0;
1503         push_hud_element(L, e);
1504         return 1;
1505 }
1506
1507 // hud_set_flags(self, flags)
1508 int ObjectRef::l_hud_set_flags(lua_State *L)
1509 {
1510         NO_MAP_LOCK_REQUIRED;
1511         ObjectRef *ref = checkobject(L, 1);
1512         RemotePlayer *player = getplayer(ref);
1513         if (player == NULL)
1514                 return 0;
1515
1516         u32 flags = 0;
1517         u32 mask  = 0;
1518         bool flag;
1519
1520         const EnumString *esp = es_HudBuiltinElement;
1521         for (int i = 0; esp[i].str; i++) {
1522                 if (getboolfield(L, 2, esp[i].str, flag)) {
1523                         flags |= esp[i].num * flag;
1524                         mask  |= esp[i].num;
1525                 }
1526         }
1527         if (!getServer(L)->hudSetFlags(player, flags, mask))
1528                 return 0;
1529
1530         lua_pushboolean(L, true);
1531         return 1;
1532 }
1533
1534 int ObjectRef::l_hud_get_flags(lua_State *L)
1535 {
1536         NO_MAP_LOCK_REQUIRED;
1537         ObjectRef *ref = checkobject(L, 1);
1538         RemotePlayer *player = getplayer(ref);
1539         if (player == NULL)
1540                 return 0;
1541
1542         lua_newtable(L);
1543         lua_pushboolean(L, player->hud_flags & HUD_FLAG_HOTBAR_VISIBLE);
1544         lua_setfield(L, -2, "hotbar");
1545         lua_pushboolean(L, player->hud_flags & HUD_FLAG_HEALTHBAR_VISIBLE);
1546         lua_setfield(L, -2, "healthbar");
1547         lua_pushboolean(L, player->hud_flags & HUD_FLAG_CROSSHAIR_VISIBLE);
1548         lua_setfield(L, -2, "crosshair");
1549         lua_pushboolean(L, player->hud_flags & HUD_FLAG_WIELDITEM_VISIBLE);
1550         lua_setfield(L, -2, "wielditem");
1551         lua_pushboolean(L, player->hud_flags & HUD_FLAG_BREATHBAR_VISIBLE);
1552         lua_setfield(L, -2, "breathbar");
1553         lua_pushboolean(L, player->hud_flags & HUD_FLAG_MINIMAP_VISIBLE);
1554         lua_setfield(L, -2, "minimap");
1555         lua_pushboolean(L, player->hud_flags & HUD_FLAG_MINIMAP_RADAR_VISIBLE);
1556         lua_setfield(L, -2, "minimap_radar");
1557
1558         return 1;
1559 }
1560
1561 // hud_set_hotbar_itemcount(self, hotbar_itemcount)
1562 int ObjectRef::l_hud_set_hotbar_itemcount(lua_State *L)
1563 {
1564         NO_MAP_LOCK_REQUIRED;
1565         ObjectRef *ref = checkobject(L, 1);
1566         RemotePlayer *player = getplayer(ref);
1567         if (player == NULL)
1568                 return 0;
1569
1570         s32 hotbar_itemcount = lua_tonumber(L, 2);
1571
1572         if (!getServer(L)->hudSetHotbarItemcount(player, hotbar_itemcount))
1573                 return 0;
1574
1575         lua_pushboolean(L, true);
1576         return 1;
1577 }
1578
1579 // hud_get_hotbar_itemcount(self)
1580 int ObjectRef::l_hud_get_hotbar_itemcount(lua_State *L)
1581 {
1582         NO_MAP_LOCK_REQUIRED;
1583         ObjectRef *ref = checkobject(L, 1);
1584         RemotePlayer *player = getplayer(ref);
1585         if (player == NULL)
1586                 return 0;
1587
1588         lua_pushnumber(L, player->getHotbarItemcount());
1589         return 1;
1590 }
1591
1592 // hud_set_hotbar_image(self, name)
1593 int ObjectRef::l_hud_set_hotbar_image(lua_State *L)
1594 {
1595         NO_MAP_LOCK_REQUIRED;
1596         ObjectRef *ref = checkobject(L, 1);
1597         RemotePlayer *player = getplayer(ref);
1598         if (player == NULL)
1599                 return 0;
1600
1601         std::string name = readParam<std::string>(L, 2);
1602
1603         getServer(L)->hudSetHotbarImage(player, name);
1604         return 1;
1605 }
1606
1607 // hud_get_hotbar_image(self)
1608 int ObjectRef::l_hud_get_hotbar_image(lua_State *L)
1609 {
1610         NO_MAP_LOCK_REQUIRED;
1611         ObjectRef *ref = checkobject(L, 1);
1612         RemotePlayer *player = getplayer(ref);
1613         if (player == NULL)
1614                 return 0;
1615
1616         const std::string &name = player->getHotbarImage();
1617         lua_pushlstring(L, name.c_str(), name.size());
1618         return 1;
1619 }
1620
1621 // hud_set_hotbar_selected_image(self, name)
1622 int ObjectRef::l_hud_set_hotbar_selected_image(lua_State *L)
1623 {
1624         NO_MAP_LOCK_REQUIRED;
1625         ObjectRef *ref = checkobject(L, 1);
1626         RemotePlayer *player = getplayer(ref);
1627         if (player == NULL)
1628                 return 0;
1629
1630         std::string name = readParam<std::string>(L, 2);
1631
1632         getServer(L)->hudSetHotbarSelectedImage(player, name);
1633         return 1;
1634 }
1635
1636 // hud_get_hotbar_selected_image(self)
1637 int ObjectRef::l_hud_get_hotbar_selected_image(lua_State *L)
1638 {
1639         NO_MAP_LOCK_REQUIRED;
1640         ObjectRef *ref = checkobject(L, 1);
1641         RemotePlayer *player = getplayer(ref);
1642         if (player == NULL)
1643                 return 0;
1644
1645         const std::string &name = player->getHotbarSelectedImage();
1646         lua_pushlstring(L, name.c_str(), name.size());
1647         return 1;
1648 }
1649
1650 // set_sky(self, bgcolor, type, list, clouds = true)
1651 int ObjectRef::l_set_sky(lua_State *L)
1652 {
1653         NO_MAP_LOCK_REQUIRED;
1654         ObjectRef *ref = checkobject(L, 1);
1655         RemotePlayer *player = getplayer(ref);
1656         if (player == NULL)
1657                 return 0;
1658
1659         video::SColor bgcolor(255,255,255,255);
1660         read_color(L, 2, &bgcolor);
1661
1662         std::string type = luaL_checkstring(L, 3);
1663
1664         std::vector<std::string> params;
1665         if (lua_istable(L, 4)) {
1666                 lua_pushnil(L);
1667                 while (lua_next(L, 4) != 0) {
1668                         // key at index -2 and value at index -1
1669                         if (lua_isstring(L, -1))
1670                                 params.emplace_back(readParam<std::string>(L, -1));
1671                         else
1672                                 params.emplace_back("");
1673                         // removes value, keeps key for next iteration
1674                         lua_pop(L, 1);
1675                 }
1676         }
1677
1678         if (type == "skybox" && params.size() != 6)
1679                 throw LuaError("skybox expects 6 textures");
1680
1681         bool clouds = true;
1682         if (lua_isboolean(L, 5))
1683                 clouds = readParam<bool>(L, 5);
1684
1685         getServer(L)->setSky(player, bgcolor, type, params, clouds);
1686         lua_pushboolean(L, true);
1687         return 1;
1688 }
1689
1690 // get_sky(self)
1691 int ObjectRef::l_get_sky(lua_State *L)
1692 {
1693         NO_MAP_LOCK_REQUIRED;
1694         ObjectRef *ref = checkobject(L, 1);
1695         RemotePlayer *player = getplayer(ref);
1696         if (player == NULL)
1697                 return 0;
1698         video::SColor bgcolor(255, 255, 255, 255);
1699         std::string type;
1700         std::vector<std::string> params;
1701         bool clouds;
1702
1703         player->getSky(&bgcolor, &type, &params, &clouds);
1704         type = type.empty() ? "regular" : type;
1705
1706         push_ARGB8(L, bgcolor);
1707         lua_pushlstring(L, type.c_str(), type.size());
1708         lua_newtable(L);
1709         s16 i = 1;
1710         for (const std::string &param : params) {
1711                 lua_pushlstring(L, param.c_str(), param.size());
1712                 lua_rawseti(L, -2, i++);
1713         }
1714         lua_pushboolean(L, clouds);
1715         return 4;
1716 }
1717
1718 // set_clouds(self, {density=, color=, ambient=, height=, thickness=, speed=})
1719 int ObjectRef::l_set_clouds(lua_State *L)
1720 {
1721         NO_MAP_LOCK_REQUIRED;
1722         ObjectRef *ref = checkobject(L, 1);
1723         RemotePlayer *player = getplayer(ref);
1724         if (!player)
1725                 return 0;
1726         if (!lua_istable(L, 2))
1727                 return 0;
1728
1729         CloudParams cloud_params = player->getCloudParams();
1730
1731         cloud_params.density = getfloatfield_default(L, 2, "density", cloud_params.density);
1732
1733         lua_getfield(L, 2, "color");
1734         if (!lua_isnil(L, -1))
1735                 read_color(L, -1, &cloud_params.color_bright);
1736         lua_pop(L, 1);
1737         lua_getfield(L, 2, "ambient");
1738         if (!lua_isnil(L, -1))
1739                 read_color(L, -1, &cloud_params.color_ambient);
1740         lua_pop(L, 1);
1741
1742         cloud_params.height    = getfloatfield_default(L, 2, "height",    cloud_params.height   );
1743         cloud_params.thickness = getfloatfield_default(L, 2, "thickness", cloud_params.thickness);
1744
1745         lua_getfield(L, 2, "speed");
1746         if (lua_istable(L, -1)) {
1747                 v2f new_speed;
1748                 new_speed.X = getfloatfield_default(L, -1, "x", 0);
1749                 new_speed.Y = getfloatfield_default(L, -1, "z", 0);
1750                 cloud_params.speed = new_speed;
1751         }
1752         lua_pop(L, 1);
1753
1754         getServer(L)->setClouds(player, cloud_params);
1755         lua_pushboolean(L, true);
1756         return 1;
1757 }
1758
1759 int ObjectRef::l_get_clouds(lua_State *L)
1760 {
1761         NO_MAP_LOCK_REQUIRED;
1762         ObjectRef *ref = checkobject(L, 1);
1763         RemotePlayer *player = getplayer(ref);
1764         if (!player)
1765                 return 0;
1766         const CloudParams &cloud_params = player->getCloudParams();
1767
1768         lua_newtable(L);
1769         lua_pushnumber(L, cloud_params.density);
1770         lua_setfield(L, -2, "density");
1771         push_ARGB8(L, cloud_params.color_bright);
1772         lua_setfield(L, -2, "color");
1773         push_ARGB8(L, cloud_params.color_ambient);
1774         lua_setfield(L, -2, "ambient");
1775         lua_pushnumber(L, cloud_params.height);
1776         lua_setfield(L, -2, "height");
1777         lua_pushnumber(L, cloud_params.thickness);
1778         lua_setfield(L, -2, "thickness");
1779         lua_newtable(L);
1780         lua_pushnumber(L, cloud_params.speed.X);
1781         lua_setfield(L, -2, "x");
1782         lua_pushnumber(L, cloud_params.speed.Y);
1783         lua_setfield(L, -2, "y");
1784         lua_setfield(L, -2, "speed");
1785
1786         return 1;
1787 }
1788
1789
1790 // override_day_night_ratio(self, brightness=0...1)
1791 int ObjectRef::l_override_day_night_ratio(lua_State *L)
1792 {
1793         NO_MAP_LOCK_REQUIRED;
1794         ObjectRef *ref = checkobject(L, 1);
1795         RemotePlayer *player = getplayer(ref);
1796         if (player == NULL)
1797                 return 0;
1798
1799         bool do_override = false;
1800         float ratio = 0.0f;
1801         if (!lua_isnil(L, 2)) {
1802                 do_override = true;
1803                 ratio = readParam<float>(L, 2);
1804         }
1805
1806         if (!getServer(L)->overrideDayNightRatio(player, do_override, ratio))
1807                 return 0;
1808
1809         lua_pushboolean(L, true);
1810         return 1;
1811 }
1812
1813 // get_day_night_ratio(self)
1814 int ObjectRef::l_get_day_night_ratio(lua_State *L)
1815 {
1816         NO_MAP_LOCK_REQUIRED;
1817         ObjectRef *ref = checkobject(L, 1);
1818         RemotePlayer *player = getplayer(ref);
1819         if (player == NULL)
1820                 return 0;
1821
1822         bool do_override;
1823         float ratio;
1824         player->getDayNightRatio(&do_override, &ratio);
1825
1826         if (do_override)
1827                 lua_pushnumber(L, ratio);
1828         else
1829                 lua_pushnil(L);
1830
1831         return 1;
1832 }
1833
1834 ObjectRef::ObjectRef(ServerActiveObject *object):
1835         m_object(object)
1836 {
1837         //infostream<<"ObjectRef created for id="<<m_object->getId()<<std::endl;
1838 }
1839
1840 // Creates an ObjectRef and leaves it on top of stack
1841 // Not callable from Lua; all references are created on the C side.
1842 void ObjectRef::create(lua_State *L, ServerActiveObject *object)
1843 {
1844         ObjectRef *o = new ObjectRef(object);
1845         //infostream<<"ObjectRef::create: o="<<o<<std::endl;
1846         *(void **)(lua_newuserdata(L, sizeof(void *))) = o;
1847         luaL_getmetatable(L, className);
1848         lua_setmetatable(L, -2);
1849 }
1850
1851 void ObjectRef::set_null(lua_State *L)
1852 {
1853         ObjectRef *o = checkobject(L, -1);
1854         o->m_object = NULL;
1855 }
1856
1857 void ObjectRef::Register(lua_State *L)
1858 {
1859         lua_newtable(L);
1860         int methodtable = lua_gettop(L);
1861         luaL_newmetatable(L, className);
1862         int metatable = lua_gettop(L);
1863
1864         lua_pushliteral(L, "__metatable");
1865         lua_pushvalue(L, methodtable);
1866         lua_settable(L, metatable);  // hide metatable from Lua getmetatable()
1867
1868         lua_pushliteral(L, "__index");
1869         lua_pushvalue(L, methodtable);
1870         lua_settable(L, metatable);
1871
1872         lua_pushliteral(L, "__gc");
1873         lua_pushcfunction(L, gc_object);
1874         lua_settable(L, metatable);
1875
1876         lua_pop(L, 1);  // drop metatable
1877
1878         markAliasDeprecated(methods);
1879         luaL_openlib(L, 0, methods, 0);  // fill methodtable
1880         lua_pop(L, 1);  // drop methodtable
1881
1882         // Cannot be created from Lua
1883         //lua_register(L, className, create_object);
1884 }
1885
1886 const char ObjectRef::className[] = "ObjectRef";
1887 luaL_Reg ObjectRef::methods[] = {
1888         // ServerActiveObject
1889         luamethod(ObjectRef, remove),
1890         luamethod_aliased(ObjectRef, get_pos, getpos),
1891         luamethod_aliased(ObjectRef, set_pos, setpos),
1892         luamethod_aliased(ObjectRef, move_to, moveto),
1893         luamethod(ObjectRef, punch),
1894         luamethod(ObjectRef, right_click),
1895         luamethod(ObjectRef, set_hp),
1896         luamethod(ObjectRef, get_hp),
1897         luamethod(ObjectRef, get_inventory),
1898         luamethod(ObjectRef, get_wield_list),
1899         luamethod(ObjectRef, get_wield_index),
1900         luamethod(ObjectRef, get_wielded_item),
1901         luamethod(ObjectRef, set_wielded_item),
1902         luamethod(ObjectRef, set_armor_groups),
1903         luamethod(ObjectRef, get_armor_groups),
1904         luamethod(ObjectRef, set_animation),
1905         luamethod(ObjectRef, get_animation),
1906         luamethod(ObjectRef, set_animation_frame_speed),
1907         luamethod(ObjectRef, set_bone_position),
1908         luamethod(ObjectRef, get_bone_position),
1909         luamethod(ObjectRef, set_attach),
1910         luamethod(ObjectRef, get_attach),
1911         luamethod(ObjectRef, set_detach),
1912         luamethod(ObjectRef, set_properties),
1913         luamethod(ObjectRef, get_properties),
1914         luamethod(ObjectRef, set_nametag_attributes),
1915         luamethod(ObjectRef, get_nametag_attributes),
1916         // LuaEntitySAO-only
1917         luamethod_aliased(ObjectRef, set_velocity, setvelocity),
1918         luamethod(ObjectRef, add_velocity),
1919         luamethod_aliased(ObjectRef, get_velocity, getvelocity),
1920         luamethod_aliased(ObjectRef, set_acceleration, setacceleration),
1921         luamethod_aliased(ObjectRef, get_acceleration, getacceleration),
1922         luamethod_aliased(ObjectRef, set_yaw, setyaw),
1923         luamethod_aliased(ObjectRef, get_yaw, getyaw),
1924         luamethod(ObjectRef, set_rotation),
1925         luamethod(ObjectRef, get_rotation),
1926         luamethod_aliased(ObjectRef, set_texture_mod, settexturemod),
1927         luamethod_aliased(ObjectRef, set_sprite, setsprite),
1928         luamethod(ObjectRef, get_entity_name),
1929         luamethod(ObjectRef, get_luaentity),
1930         // Player-only
1931         luamethod(ObjectRef, is_player),
1932         luamethod(ObjectRef, is_player_connected),
1933         luamethod(ObjectRef, get_player_name),
1934         luamethod(ObjectRef, get_player_velocity),
1935         luamethod(ObjectRef, get_look_dir),
1936         luamethod(ObjectRef, get_look_pitch),
1937         luamethod(ObjectRef, get_look_yaw),
1938         luamethod(ObjectRef, get_look_vertical),
1939         luamethod(ObjectRef, get_look_horizontal),
1940         luamethod(ObjectRef, set_look_horizontal),
1941         luamethod(ObjectRef, set_look_vertical),
1942         luamethod(ObjectRef, set_look_yaw),
1943         luamethod(ObjectRef, set_look_pitch),
1944         luamethod(ObjectRef, get_breath),
1945         luamethod(ObjectRef, set_breath),
1946         luamethod(ObjectRef, get_attribute),
1947         luamethod(ObjectRef, set_attribute),
1948         luamethod(ObjectRef, get_meta),
1949         luamethod(ObjectRef, set_inventory_formspec),
1950         luamethod(ObjectRef, get_inventory_formspec),
1951         luamethod(ObjectRef, set_formspec_prepend),
1952         luamethod(ObjectRef, get_formspec_prepend),
1953         luamethod(ObjectRef, get_player_control),
1954         luamethod(ObjectRef, get_player_control_bits),
1955         luamethod(ObjectRef, set_physics_override),
1956         luamethod(ObjectRef, get_physics_override),
1957         luamethod(ObjectRef, hud_add),
1958         luamethod(ObjectRef, hud_remove),
1959         luamethod(ObjectRef, hud_change),
1960         luamethod(ObjectRef, hud_get),
1961         luamethod(ObjectRef, hud_set_flags),
1962         luamethod(ObjectRef, hud_get_flags),
1963         luamethod(ObjectRef, hud_set_hotbar_itemcount),
1964         luamethod(ObjectRef, hud_get_hotbar_itemcount),
1965         luamethod(ObjectRef, hud_set_hotbar_image),
1966         luamethod(ObjectRef, hud_get_hotbar_image),
1967         luamethod(ObjectRef, hud_set_hotbar_selected_image),
1968         luamethod(ObjectRef, hud_get_hotbar_selected_image),
1969         luamethod(ObjectRef, set_sky),
1970         luamethod(ObjectRef, get_sky),
1971         luamethod(ObjectRef, set_clouds),
1972         luamethod(ObjectRef, get_clouds),
1973         luamethod(ObjectRef, override_day_night_ratio),
1974         luamethod(ObjectRef, get_day_night_ratio),
1975         luamethod(ObjectRef, set_local_animation),
1976         luamethod(ObjectRef, get_local_animation),
1977         luamethod(ObjectRef, set_eye_offset),
1978         luamethod(ObjectRef, get_eye_offset),
1979         luamethod(ObjectRef, send_mapblock),
1980         {0,0}
1981 };