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 = lua_toboolean(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 == NULL) return 0;
 174         if (puncher == NULL) 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         s16 src_original_hp = co->getHP();
 187         s16 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, PlayerHPChangeReason(PlayerHPChangeReason::PLAYER_PUNCH, puncher));
 196         }
 197
 198         // If the puncher is a player, and its HP changed
 199         if (dst_origin_hp != puncher->getHP() &&
 200                         puncher->getType() == ACTIVEOBJECT_TYPE_PLAYER) {
 201                 getServer(L)->SendPlayerHPOrDie((PlayerSAO *)puncher,
 202                                 PlayerHPChangeReason(PlayerHPChangeReason::PLAYER_PUNCH, co));
 203         }
 204         return 0;
 205 }
 206
 207 // right_click(self, clicker); clicker = an another ObjectRef
 208 int ObjectRef::l_right_click(lua_State *L)
 209 {
 210         NO_MAP_LOCK_REQUIRED;
 211         ObjectRef *ref = checkobject(L, 1);
 212         ObjectRef *ref2 = checkobject(L, 2);
 213         ServerActiveObject *co = getobject(ref);
 214         ServerActiveObject *co2 = getobject(ref2);
 215         if (co == NULL) return 0;
 216         if (co2 == NULL) return 0;
 217         // Do it
 218         co->rightClick(co2);
 219         return 0;
 220 }
 221
 222 // set_hp(self, hp)
 223 // hp = number of hitpoints (2 * number of hearts)
 224 // returns: nil
 225 int ObjectRef::l_set_hp(lua_State *L)
 226 {
 227         NO_MAP_LOCK_REQUIRED;
 228
 229         // Get Object
 230         ObjectRef *ref = checkobject(L, 1);
 231         luaL_checknumber(L, 2);
 232         ServerActiveObject *co = getobject(ref);
 233         if (co == NULL)
 234                 return 0;
 235
 236         // Get HP
 237         int hp = lua_tonumber(L, 2);
 238
 239         // Get Reason
 240         PlayerHPChangeReason reason(PlayerHPChangeReason::SET_HP);
 241         reason.from_mod = true;
 242         if (lua_istable(L, 3)) {
 243                 lua_pushvalue(L, 3);
 244
 245                 lua_getfield(L, -1, "type");
 246                 if (lua_isstring(L, -1) && !reason.setTypeFromString(lua_tostring(L, -1))) {
 247                         errorstream << "Bad type given!" << std::endl;
 248                 }
 249                 lua_pop(L, 1);
 250
 251                 reason.lua_reference = luaL_ref(L, LUA_REGISTRYINDEX);
 252         }
 253
 254         // Do it
 255         co->setHP(hp, reason);
 256         if (co->getType() == ACTIVEOBJECT_TYPE_PLAYER)
 257                 getServer(L)->SendPlayerHPOrDie((PlayerSAO *)co, reason);
 258
 259         // Return
 260         return 0;
 261 }
 262
 263 // get_hp(self)
 264 // returns: number of hitpoints (2 * number of hearts)
 265 // 0 if not applicable to this type of object
 266 int ObjectRef::l_get_hp(lua_State *L)
 267 {
 268         NO_MAP_LOCK_REQUIRED;
 269         ObjectRef *ref = checkobject(L, 1);
 270         ServerActiveObject *co = getobject(ref);
 271         if (co == NULL) {
 272                 // Default hp is 1
 273                 lua_pushnumber(L, 1);
 274                 return 1;
 275         }
 276         int hp = co->getHP();
 277         /*infostream<<"ObjectRef::l_get_hp(): id="<<co->getId()
 278                         <<" hp="<<hp<<std::endl;*/
 279         // Return
 280         lua_pushnumber(L, hp);
 281         return 1;
 282 }
 283
 284 // get_inventory(self)
 285 int ObjectRef::l_get_inventory(lua_State *L)
 286 {
 287         NO_MAP_LOCK_REQUIRED;
 288         ObjectRef *ref = checkobject(L, 1);
 289         ServerActiveObject *co = getobject(ref);
 290         if (co == NULL) return 0;
 291         // Do it
 292         InventoryLocation loc = co->getInventoryLocation();
 293         if (getServer(L)->getInventory(loc) != NULL)
 294                 InvRef::create(L, loc);
 295         else
 296                 lua_pushnil(L); // An object may have no inventory (nil)
 297         return 1;
 298 }
 299
 300 // get_wield_list(self)
 301 int ObjectRef::l_get_wield_list(lua_State *L)
 302 {
 303         NO_MAP_LOCK_REQUIRED;
 304         ObjectRef *ref = checkobject(L, 1);
 305         ServerActiveObject *co = getobject(ref);
 306         if (co == NULL) return 0;
 307         // Do it
 308         lua_pushstring(L, co->getWieldList().c_str());
 309         return 1;
 310 }
 311
 312 // get_wield_index(self)
 313 int ObjectRef::l_get_wield_index(lua_State *L)
 314 {
 315         NO_MAP_LOCK_REQUIRED;
 316         ObjectRef *ref = checkobject(L, 1);
 317         ServerActiveObject *co = getobject(ref);
 318         if (co == NULL) return 0;
 319         // Do it
 320         lua_pushinteger(L, co->getWieldIndex() + 1);
 321         return 1;
 322 }
 323
 324 // get_wielded_item(self)
 325 int ObjectRef::l_get_wielded_item(lua_State *L)
 326 {
 327         NO_MAP_LOCK_REQUIRED;
 328         ObjectRef *ref = checkobject(L, 1);
 329         ServerActiveObject *co = getobject(ref);
 330         if (co == NULL) {
 331                 // Empty ItemStack
 332                 LuaItemStack::create(L, ItemStack());
 333                 return 1;
 334         }
 335         // Do it
 336         LuaItemStack::create(L, co->getWieldedItem());
 337         return 1;
 338 }
 339
 340 // set_wielded_item(self, itemstack or itemstring or table or nil)
 341 int ObjectRef::l_set_wielded_item(lua_State *L)
 342 {
 343         NO_MAP_LOCK_REQUIRED;
 344         ObjectRef *ref = checkobject(L, 1);
 345         ServerActiveObject *co = getobject(ref);
 346         if (co == NULL) return 0;
 347         // Do it
 348         ItemStack item = read_item(L, 2, getServer(L)->idef());
 349         bool success = co->setWieldedItem(item);
 350         if (success && co->getType() == ACTIVEOBJECT_TYPE_PLAYER) {
 351                 getServer(L)->SendInventory(((PlayerSAO*)co));
 352         }
 353         lua_pushboolean(L, success);
 354         return 1;
 355 }
 356
 357 // set_armor_groups(self, groups)
 358 int ObjectRef::l_set_armor_groups(lua_State *L)
 359 {
 360         NO_MAP_LOCK_REQUIRED;
 361         ObjectRef *ref = checkobject(L, 1);
 362         ServerActiveObject *co = getobject(ref);
 363         if (co == NULL) return 0;
 364         // Do it
 365         ItemGroupList groups;
 366         read_groups(L, 2, groups);
 367         co->setArmorGroups(groups);
 368         return 0;
 369 }
 370
 371 // get_armor_groups(self)
 372 int ObjectRef::l_get_armor_groups(lua_State *L)
 373 {
 374         NO_MAP_LOCK_REQUIRED;
 375         ObjectRef *ref = checkobject(L, 1);
 376         ServerActiveObject *co = getobject(ref);
 377         if (co == NULL)
 378                 return 0;
 379         // Do it
 380         push_groups(L, co->getArmorGroups());
 381         return 1;
 382 }
 383
 384 // set_physics_override(self, physics_override_speed, physics_override_jump,
 385 //                      physics_override_gravity, sneak, sneak_glitch, new_move)
 386 int ObjectRef::l_set_physics_override(lua_State *L)
 387 {
 388         NO_MAP_LOCK_REQUIRED;
 389         ObjectRef *ref = checkobject(L, 1);
 390         PlayerSAO *co = (PlayerSAO *) getobject(ref);
 391         if (co == NULL) return 0;
 392         // Do it
 393         if (lua_istable(L, 2)) {
 394                 co->m_physics_override_speed = getfloatfield_default(
 395                                 L, 2, "speed", co->m_physics_override_speed);
 396                 co->m_physics_override_jump = getfloatfield_default(
 397                                 L, 2, "jump", co->m_physics_override_jump);
 398                 co->m_physics_override_gravity = getfloatfield_default(
 399                                 L, 2, "gravity", co->m_physics_override_gravity);
 400                 co->m_physics_override_sneak = getboolfield_default(
 401                                 L, 2, "sneak", co->m_physics_override_sneak);
 402                 co->m_physics_override_sneak_glitch = getboolfield_default(
 403                                 L, 2, "sneak_glitch", co->m_physics_override_sneak_glitch);
 404                 co->m_physics_override_new_move = getboolfield_default(
 405                                 L, 2, "new_move", co->m_physics_override_new_move);
 406                 co->m_physics_override_sent = false;
 407         } else {
 408                 // old, non-table format
 409                 if (!lua_isnil(L, 2)) {
 410                         co->m_physics_override_speed = lua_tonumber(L, 2);
 411                         co->m_physics_override_sent = false;
 412                 }
 413                 if (!lua_isnil(L, 3)) {
 414                         co->m_physics_override_jump = lua_tonumber(L, 3);
 415                         co->m_physics_override_sent = false;
 416                 }
 417                 if (!lua_isnil(L, 4)) {
 418                         co->m_physics_override_gravity = lua_tonumber(L, 4);
 419                         co->m_physics_override_sent = false;
 420                 }
 421         }
 422         return 0;
 423 }
 424
 425 // get_physics_override(self)
 426 int ObjectRef::l_get_physics_override(lua_State *L)
 427 {
 428         NO_MAP_LOCK_REQUIRED;
 429         ObjectRef *ref = checkobject(L, 1);
 430         PlayerSAO *co = (PlayerSAO *)getobject(ref);
 431         if (co == NULL)
 432                 return 0;
 433         // Do it
 434         lua_newtable(L);
 435         lua_pushnumber(L, co->m_physics_override_speed);
 436         lua_setfield(L, -2, "speed");
 437         lua_pushnumber(L, co->m_physics_override_jump);
 438         lua_setfield(L, -2, "jump");
 439         lua_pushnumber(L, co->m_physics_override_gravity);
 440         lua_setfield(L, -2, "gravity");
 441         lua_pushboolean(L, co->m_physics_override_sneak);
 442         lua_setfield(L, -2, "sneak");
 443         lua_pushboolean(L, co->m_physics_override_sneak_glitch);
 444         lua_setfield(L, -2, "sneak_glitch");
 445         lua_pushboolean(L, co->m_physics_override_new_move);
 446         lua_setfield(L, -2, "new_move");
 447         return 1;
 448 }
 449
 450 // set_animation(self, frame_range, frame_speed, frame_blend, frame_loop)
 451 int ObjectRef::l_set_animation(lua_State *L)
 452 {
 453         NO_MAP_LOCK_REQUIRED;
 454         ObjectRef *ref = checkobject(L, 1);
 455         ServerActiveObject *co = getobject(ref);
 456         if (co == NULL) return 0;
 457         // Do it
 458         v2f frames = v2f(1, 1);
 459         if (!lua_isnil(L, 2))
 460                 frames = read_v2f(L, 2);
 461         float frame_speed = 15;
 462         if (!lua_isnil(L, 3))
 463                 frame_speed = lua_tonumber(L, 3);
 464         float frame_blend = 0;
 465         if (!lua_isnil(L, 4))
 466                 frame_blend = lua_tonumber(L, 4);
 467         bool frame_loop = true;
 468         if (lua_isboolean(L, 5))
 469                 frame_loop = lua_toboolean(L, 5);
 470         co->setAnimation(frames, frame_speed, frame_blend, frame_loop);
 471         return 0;
 472 }
 473
 474 // get_animation(self)
 475 int ObjectRef::l_get_animation(lua_State *L)
 476 {
 477         NO_MAP_LOCK_REQUIRED;
 478         ObjectRef *ref = checkobject(L, 1);
 479         ServerActiveObject *co = getobject(ref);
 480         if (co == NULL)
 481                 return 0;
 482         // Do it
 483         v2f frames = v2f(1,1);
 484         float frame_speed = 15;
 485         float frame_blend = 0;
 486         bool frame_loop = true;
 487         co->getAnimation(&frames, &frame_speed, &frame_blend, &frame_loop);
 488
 489         push_v2f(L, frames);
 490         lua_pushnumber(L, frame_speed);
 491         lua_pushnumber(L, frame_blend);
 492         lua_pushboolean(L, frame_loop);
 493         return 4;
 494 }
 495
 496 // set_local_animation(self, {stand/idle}, {walk}, {dig}, {walk+dig}, frame_speed)
 497 int ObjectRef::l_set_local_animation(lua_State *L)
 498 {
 499         NO_MAP_LOCK_REQUIRED;
 500         ObjectRef *ref = checkobject(L, 1);
 501         RemotePlayer *player = getplayer(ref);
 502         if (player == NULL)
 503                 return 0;
 504         // Do it
 505         v2s32 frames[4];
 506         for (int i=0;i<4;i++) {
 507                 if (!lua_isnil(L, 2+1))
 508                         frames[i] = read_v2s32(L, 2+i);
 509         }
 510         float frame_speed = 30;
 511         if (!lua_isnil(L, 6))
 512                 frame_speed = lua_tonumber(L, 6);
 513
 514         getServer(L)->setLocalPlayerAnimations(player, frames, frame_speed);
 515         lua_pushboolean(L, true);
 516         return 1;
 517 }
 518
 519 // get_local_animation(self)
 520 int ObjectRef::l_get_local_animation(lua_State *L)
 521 {
 522         NO_MAP_LOCK_REQUIRED
 523         ObjectRef *ref = checkobject(L, 1);
 524         RemotePlayer *player = getplayer(ref);
 525         if (player == NULL)
 526                 return 0;
 527
 528         v2s32 frames[4];
 529         float frame_speed;
 530         player->getLocalAnimations(frames, &frame_speed);
 531
 532         for (const v2s32 &frame : frames) {
 533                 push_v2s32(L, frame);
 534         }
 535
 536         lua_pushnumber(L, frame_speed);
 537         return 5;
 538 }
 539
 540 // set_eye_offset(self, v3f first pv, v3f third pv)
 541 int ObjectRef::l_set_eye_offset(lua_State *L)
 542 {
 543         NO_MAP_LOCK_REQUIRED;
 544         ObjectRef *ref = checkobject(L, 1);
 545         RemotePlayer *player = getplayer(ref);
 546         if (player == NULL)
 547                 return 0;
 548         // Do it
 549         v3f offset_first = v3f(0, 0, 0);
 550         v3f offset_third = v3f(0, 0, 0);
 551
 552         if (!lua_isnil(L, 2))
 553                 offset_first = read_v3f(L, 2);
 554         if (!lua_isnil(L, 3))
 555                 offset_third = read_v3f(L, 3);
 556
 557         // Prevent abuse of offset values (keep player always visible)
 558         offset_third.X = rangelim(offset_third.X,-10,10);
 559         offset_third.Z = rangelim(offset_third.Z,-5,5);
 560         /* TODO: if possible: improve the camera colision detetion to allow Y <= -1.5) */
 561         offset_third.Y = rangelim(offset_third.Y,-10,15); //1.5*BS
 562
 563         getServer(L)->setPlayerEyeOffset(player, offset_first, offset_third);
 564         lua_pushboolean(L, true);
 565         return 1;
 566 }
 567
 568 // get_eye_offset(self)
 569 int ObjectRef::l_get_eye_offset(lua_State *L)
 570 {
 571         NO_MAP_LOCK_REQUIRED;
 572         ObjectRef *ref = checkobject(L, 1);
 573         RemotePlayer *player = getplayer(ref);
 574         if (player == NULL)
 575                 return 0;
 576         // Do it
 577         push_v3f(L, player->eye_offset_first);
 578         push_v3f(L, player->eye_offset_third);
 579         return 2;
 580 }
 581
 582 // set_animation_frame_speed(self, frame_speed)
 583 int ObjectRef::l_set_animation_frame_speed(lua_State *L)
 584 {
 585         NO_MAP_LOCK_REQUIRED;
 586         ObjectRef *ref = checkobject(L, 1);
 587         ServerActiveObject *co = getobject(ref);
 588         if (co == NULL)
 589                 return 0;
 590
 591         // Do it
 592         if (!lua_isnil(L, 2)) {
 593                 float frame_speed = lua_tonumber(L, 2);
 594                 co->setAnimationSpeed(frame_speed);
 595                 lua_pushboolean(L, true);
 596         } else {
 597                 lua_pushboolean(L, false);
 598         }
 599         return 1;
 600 }
 601
 602 // set_bone_position(self, std::string bone, v3f position, v3f rotation)
 603 int ObjectRef::l_set_bone_position(lua_State *L)
 604 {
 605         NO_MAP_LOCK_REQUIRED;
 606         ObjectRef *ref = checkobject(L, 1);
 607         ServerActiveObject *co = getobject(ref);
 608         if (co == NULL) return 0;
 609         // Do it
 610         std::string bone;
 611         if (!lua_isnil(L, 2))
 612                 bone = lua_tostring(L, 2);
 613         v3f position = v3f(0, 0, 0);
 614         if (!lua_isnil(L, 3))
 615                 position = check_v3f(L, 3);
 616         v3f rotation = v3f(0, 0, 0);
 617         if (!lua_isnil(L, 4))
 618                 rotation = check_v3f(L, 4);
 619         co->setBonePosition(bone, position, rotation);
 620         return 0;
 621 }
 622
 623 // get_bone_position(self, bone)
 624 int ObjectRef::l_get_bone_position(lua_State *L)
 625 {
 626         NO_MAP_LOCK_REQUIRED;
 627         ObjectRef *ref = checkobject(L, 1);
 628         ServerActiveObject *co = getobject(ref);
 629         if (co == NULL)
 630                 return 0;
 631         // Do it
 632         std::string bone;
 633         if (!lua_isnil(L, 2))
 634                 bone = lua_tostring(L, 2);
 635
 636         v3f position = v3f(0, 0, 0);
 637         v3f rotation = v3f(0, 0, 0);
 638         co->getBonePosition(bone, &position, &rotation);
 639
 640         push_v3f(L, position);
 641         push_v3f(L, rotation);
 642         return 2;
 643 }
 644
 645 // set_attach(self, parent, bone, position, rotation)
 646 int ObjectRef::l_set_attach(lua_State *L)
 647 {
 648         GET_ENV_PTR;
 649
 650         ObjectRef *ref = checkobject(L, 1);
 651         ObjectRef *parent_ref = checkobject(L, 2);
 652         ServerActiveObject *co = getobject(ref);
 653         ServerActiveObject *parent = getobject(parent_ref);
 654         if (co == NULL)
 655                 return 0;
 656         if (parent == NULL)
 657                 return 0;
 658         // Do it
 659         int parent_id = 0;
 660         std::string bone;
 661         v3f position = v3f(0, 0, 0);
 662         v3f rotation = v3f(0, 0, 0);
 663         co->getAttachment(&parent_id, &bone, &position, &rotation);
 664         if (parent_id) {
 665                 ServerActiveObject *old_parent = env->getActiveObject(parent_id);
 666                 old_parent->removeAttachmentChild(co->getId());
 667         }
 668
 669         bone = "";
 670         if (!lua_isnil(L, 3))
 671                 bone = lua_tostring(L, 3);
 672         position = v3f(0, 0, 0);
 673         if (!lua_isnil(L, 4))
 674                 position = read_v3f(L, 4);
 675         rotation = v3f(0, 0, 0);
 676         if (!lua_isnil(L, 5))
 677                 rotation = read_v3f(L, 5);
 678         co->setAttachment(parent->getId(), bone, position, rotation);
 679         parent->addAttachmentChild(co->getId());
 680         return 0;
 681 }
 682
 683 // get_attach(self)
 684 int ObjectRef::l_get_attach(lua_State *L)
 685 {
 686         GET_ENV_PTR;
 687
 688         ObjectRef *ref = checkobject(L, 1);
 689         ServerActiveObject *co = getobject(ref);
 690         if (co == NULL)
 691                 return 0;
 692
 693         // Do it
 694         int parent_id = 0;
 695         std::string bone;
 696         v3f position = v3f(0, 0, 0);
 697         v3f rotation = v3f(0, 0, 0);
 698         co->getAttachment(&parent_id, &bone, &position, &rotation);
 699         if (!parent_id)
 700                 return 0;
 701         ServerActiveObject *parent = env->getActiveObject(parent_id);
 702
 703         getScriptApiBase(L)->objectrefGetOrCreate(L, parent);
 704         lua_pushlstring(L, bone.c_str(), bone.size());
 705         push_v3f(L, position);
 706         push_v3f(L, rotation);
 707         return 4;
 708 }
 709
 710 // set_detach(self)
 711 int ObjectRef::l_set_detach(lua_State *L)
 712 {
 713         GET_ENV_PTR;
 714
 715         ObjectRef *ref = checkobject(L, 1);
 716         ServerActiveObject *co = getobject(ref);
 717         if (co == NULL)
 718                 return 0;
 719
 720         co->clearParentAttachment();
 721         return 0;
 722 }
 723
 724 // set_properties(self, properties)
 725 int ObjectRef::l_set_properties(lua_State *L)
 726 {
 727         NO_MAP_LOCK_REQUIRED;
 728         ObjectRef *ref = checkobject(L, 1);
 729         ServerActiveObject *co = getobject(ref);
 730         if (co == NULL) return 0;
 731         ObjectProperties *prop = co->accessObjectProperties();
 732         if (!prop)
 733                 return 0;
 734         read_object_properties(L, 2, prop, getServer(L)->idef());
 735         if (prop->hp_max < co->getHP()) {
 736                 PlayerHPChangeReason reason(PlayerHPChangeReason::SET_HP);
 737                 co->setHP(prop->hp_max, reason);
 738                 if (co->getType() == ACTIVEOBJECT_TYPE_PLAYER)
 739                         getServer(L)->SendPlayerHPOrDie((PlayerSAO *)co, reason);
 740         }
 741         co->notifyObjectPropertiesModified();
 742         return 0;
 743 }
 744
 745 // get_properties(self)
 746 int ObjectRef::l_get_properties(lua_State *L)
 747 {
 748         NO_MAP_LOCK_REQUIRED;
 749         ObjectRef *ref = checkobject(L, 1);
 750         ServerActiveObject *co = getobject(ref);
 751         if (co == NULL)
 752                 return 0;
 753         ObjectProperties *prop = co->accessObjectProperties();
 754         if (!prop)
 755                 return 0;
 756         push_object_properties(L, prop);
 757         return 1;
 758 }
 759
 760 // is_player(self)
 761 int ObjectRef::l_is_player(lua_State *L)
 762 {
 763         NO_MAP_LOCK_REQUIRED;
 764         ObjectRef *ref = checkobject(L, 1);
 765         RemotePlayer *player = getplayer(ref);
 766         lua_pushboolean(L, (player != NULL));
 767         return 1;
 768 }
 769
 770 // set_nametag_attributes(self, attributes)
 771 int ObjectRef::l_set_nametag_attributes(lua_State *L)
 772 {
 773         NO_MAP_LOCK_REQUIRED;
 774         ObjectRef *ref = checkobject(L, 1);
 775         ServerActiveObject *co = getobject(ref);
 776
 777         if (co == NULL)
 778                 return 0;
 779         ObjectProperties *prop = co->accessObjectProperties();
 780         if (!prop)
 781                 return 0;
 782
 783         lua_getfield(L, 2, "color");
 784         if (!lua_isnil(L, -1)) {
 785                 video::SColor color = prop->nametag_color;
 786                 read_color(L, -1, &color);
 787                 prop->nametag_color = color;
 788         }
 789         lua_pop(L, 1);
 790
 791         std::string nametag = getstringfield_default(L, 2, "text", "");
 792         prop->nametag = nametag;
 793
 794         co->notifyObjectPropertiesModified();
 795         lua_pushboolean(L, true);
 796         return 1;
 797 }
 798
 799 // get_nametag_attributes(self)
 800 int ObjectRef::l_get_nametag_attributes(lua_State *L)
 801 {
 802         NO_MAP_LOCK_REQUIRED;
 803         ObjectRef *ref = checkobject(L, 1);
 804         ServerActiveObject *co = getobject(ref);
 805
 806         if (co == NULL)
 807                 return 0;
 808         ObjectProperties *prop = co->accessObjectProperties();
 809         if (!prop)
 810                 return 0;
 811
 812         video::SColor color = prop->nametag_color;
 813
 814         lua_newtable(L);
 815         push_ARGB8(L, color);
 816         lua_setfield(L, -2, "color");
 817         lua_pushstring(L, prop->nametag.c_str());
 818         lua_setfield(L, -2, "text");
 819         return 1;
 820 }
 821
 822 /* LuaEntitySAO-only */
 823
 824 // set_velocity(self, {x=num, y=num, z=num})
 825 int ObjectRef::l_set_velocity(lua_State *L)
 826 {
 827         NO_MAP_LOCK_REQUIRED;
 828         ObjectRef *ref = checkobject(L, 1);
 829         LuaEntitySAO *co = getluaobject(ref);
 830         if (co == NULL) return 0;
 831         v3f pos = checkFloatPos(L, 2);
 832         // Do it
 833         co->setVelocity(pos);
 834         return 0;
 835 }
 836
 837 // add_velocity(self, {x=num, y=num, z=num})
 838 int ObjectRef::l_add_velocity(lua_State *L)
 839 {
 840         NO_MAP_LOCK_REQUIRED;
 841         ObjectRef *ref = checkobject(L, 1);
 842         LuaEntitySAO *co = getluaobject(ref);
 843         if (!co)
 844                 return 0;
 845         v3f pos = checkFloatPos(L, 2);
 846         // Do it
 847         co->addVelocity(pos);
 848         return 0;
 849 }
 850
 851 // get_velocity(self)
 852 int ObjectRef::l_get_velocity(lua_State *L)
 853 {
 854         NO_MAP_LOCK_REQUIRED;
 855         ObjectRef *ref = checkobject(L, 1);
 856         LuaEntitySAO *co = getluaobject(ref);
 857         if (co == NULL) return 0;
 858         // Do it
 859         v3f v = co->getVelocity();
 860         pushFloatPos(L, v);
 861         return 1;
 862 }
 863
 864 // set_acceleration(self, {x=num, y=num, z=num})
 865 int ObjectRef::l_set_acceleration(lua_State *L)
 866 {
 867         NO_MAP_LOCK_REQUIRED;
 868         ObjectRef *ref = checkobject(L, 1);
 869         LuaEntitySAO *co = getluaobject(ref);
 870         if (co == NULL) return 0;
 871         // pos
 872         v3f pos = checkFloatPos(L, 2);
 873         // Do it
 874         co->setAcceleration(pos);
 875         return 0;
 876 }
 877
 878 // get_acceleration(self)
 879 int ObjectRef::l_get_acceleration(lua_State *L)
 880 {
 881         NO_MAP_LOCK_REQUIRED;
 882         ObjectRef *ref = checkobject(L, 1);
 883         LuaEntitySAO *co = getluaobject(ref);
 884         if (co == NULL) return 0;
 885         // Do it
 886         v3f v = co->getAcceleration();
 887         pushFloatPos(L, v);
 888         return 1;
 889 }
 890
 891 // set_yaw(self, radians)
 892 int ObjectRef::l_set_yaw(lua_State *L)
 893 {
 894         NO_MAP_LOCK_REQUIRED;
 895         ObjectRef *ref = checkobject(L, 1);
 896         LuaEntitySAO *co = getluaobject(ref);
 897         if (co == NULL) return 0;
 898         float yaw = luaL_checknumber(L, 2) * core::RADTODEG;
 899         // Do it
 900         co->setYaw(yaw);
 901         return 0;
 902 }
 903
 904 // get_yaw(self)
 905 int ObjectRef::l_get_yaw(lua_State *L)
 906 {
 907         NO_MAP_LOCK_REQUIRED;
 908         ObjectRef *ref = checkobject(L, 1);
 909         LuaEntitySAO *co = getluaobject(ref);
 910         if (co == NULL) return 0;
 911         // Do it
 912         float yaw = co->getYaw() * core::DEGTORAD;
 913         lua_pushnumber(L, yaw);
 914         return 1;
 915 }
 916
 917 // set_texture_mod(self, mod)
 918 int ObjectRef::l_set_texture_mod(lua_State *L)
 919 {
 920         NO_MAP_LOCK_REQUIRED;
 921         ObjectRef *ref = checkobject(L, 1);
 922         LuaEntitySAO *co = getluaobject(ref);
 923         if (co == NULL) return 0;
 924         // Do it
 925         std::string mod = luaL_checkstring(L, 2);
 926         co->setTextureMod(mod);
 927         return 0;
 928 }
 929
 930 // get_texture_mod(self)
 931 int ObjectRef::l_get_texture_mod(lua_State *L)
 932 {
 933         NO_MAP_LOCK_REQUIRED;
 934         ObjectRef *ref = checkobject(L, 1);
 935         LuaEntitySAO *co = getluaobject(ref);
 936         if (co == NULL) return 0;
 937         // Do it
 938         std::string mod = co->getTextureMod();
 939         lua_pushstring(L, mod.c_str());
 940         return 1;
 941 }
 942
 943 // set_sprite(self, p={x=0,y=0}, num_frames=1, framelength=0.2,
 944 //           select_horiz_by_yawpitch=false)
 945 int ObjectRef::l_set_sprite(lua_State *L)
 946 {
 947         NO_MAP_LOCK_REQUIRED;
 948         ObjectRef *ref = checkobject(L, 1);
 949         LuaEntitySAO *co = getluaobject(ref);
 950         if (co == NULL) return 0;
 951         // Do it
 952         v2s16 p(0,0);
 953         if (!lua_isnil(L, 2))
 954                 p = read_v2s16(L, 2);
 955         int num_frames = 1;
 956         if (!lua_isnil(L, 3))
 957                 num_frames = lua_tonumber(L, 3);
 958         float framelength = 0.2;
 959         if (!lua_isnil(L, 4))
 960                 framelength = lua_tonumber(L, 4);
 961         bool select_horiz_by_yawpitch = false;
 962         if (!lua_isnil(L, 5))
 963                 select_horiz_by_yawpitch = lua_toboolean(L, 5);
 964         co->setSprite(p, num_frames, framelength, select_horiz_by_yawpitch);
 965         return 0;
 966 }
 967
 968 // DEPRECATED
 969 // get_entity_name(self)
 970 int ObjectRef::l_get_entity_name(lua_State *L)
 971 {
 972         NO_MAP_LOCK_REQUIRED;
 973         ObjectRef *ref = checkobject(L, 1);
 974         LuaEntitySAO *co = getluaobject(ref);
 975         log_deprecated(L,"Deprecated call to \"get_entity_name");
 976         if (co == NULL) return 0;
 977         // Do it
 978         std::string name = co->getName();
 979         lua_pushstring(L, name.c_str());
 980         return 1;
 981 }
 982
 983 // get_luaentity(self)
 984 int ObjectRef::l_get_luaentity(lua_State *L)
 985 {
 986         NO_MAP_LOCK_REQUIRED;
 987         ObjectRef *ref = checkobject(L, 1);
 988         LuaEntitySAO *co = getluaobject(ref);
 989         if (co == NULL) return 0;
 990         // Do it
 991         luaentity_get(L, co->getId());
 992         return 1;
 993 }
 994
 995 /* Player-only */
 996
 997 // is_player_connected(self)
 998 int ObjectRef::l_is_player_connected(lua_State *L)
 999 {
1000         NO_MAP_LOCK_REQUIRED;
1001         ObjectRef *ref = checkobject(L, 1);
1002         RemotePlayer *player = getplayer(ref);
1003         lua_pushboolean(L, (player != NULL && player->getPeerId() != PEER_ID_INEXISTENT));
1004         return 1;
1005 }
1006
1007 // get_player_name(self)
1008 int ObjectRef::l_get_player_name(lua_State *L)
1009 {
1010         NO_MAP_LOCK_REQUIRED;
1011         ObjectRef *ref = checkobject(L, 1);
1012         RemotePlayer *player = getplayer(ref);
1013         if (player == NULL) {
1014                 lua_pushlstring(L, "", 0);
1015                 return 1;
1016         }
1017         // Do it
1018         lua_pushstring(L, player->getName());
1019         return 1;
1020 }
1021
1022 // get_player_velocity(self)
1023 int ObjectRef::l_get_player_velocity(lua_State *L)
1024 {
1025         NO_MAP_LOCK_REQUIRED;
1026         ObjectRef *ref = checkobject(L, 1);
1027         RemotePlayer *player = getplayer(ref);
1028         if (player == NULL) {
1029                 lua_pushnil(L);
1030                 return 1;
1031         }
1032         // Do it
1033         push_v3f(L, player->getSpeed() / BS);
1034         return 1;
1035 }
1036
1037 // get_look_dir(self)
1038 int ObjectRef::l_get_look_dir(lua_State *L)
1039 {
1040         NO_MAP_LOCK_REQUIRED;
1041         ObjectRef *ref = checkobject(L, 1);
1042         PlayerSAO* co = getplayersao(ref);
1043         if (co == NULL) return 0;
1044         // Do it
1045         float pitch = co->getRadPitchDep();
1046         float yaw = co->getRadYawDep();
1047         v3f v(std::cos(pitch) * std::cos(yaw), std::sin(pitch), std::cos(pitch) *
1048                 std::sin(yaw));
1049         push_v3f(L, v);
1050         return 1;
1051 }
1052
1053 // DEPRECATED
1054 // get_look_pitch(self)
1055 int ObjectRef::l_get_look_pitch(lua_State *L)
1056 {
1057         NO_MAP_LOCK_REQUIRED;
1058
1059         log_deprecated(L,
1060                 "Deprecated call to get_look_pitch, use get_look_vertical instead");
1061
1062         ObjectRef *ref = checkobject(L, 1);
1063         PlayerSAO* co = getplayersao(ref);
1064         if (co == NULL) return 0;
1065         // Do it
1066         lua_pushnumber(L, co->getRadPitchDep());
1067         return 1;
1068 }
1069
1070 // DEPRECATED
1071 // get_look_yaw(self)
1072 int ObjectRef::l_get_look_yaw(lua_State *L)
1073 {
1074         NO_MAP_LOCK_REQUIRED;
1075
1076         log_deprecated(L,
1077                 "Deprecated call to get_look_yaw, use get_look_horizontal instead");
1078
1079         ObjectRef *ref = checkobject(L, 1);
1080         PlayerSAO* co = getplayersao(ref);
1081         if (co == NULL) return 0;
1082         // Do it
1083         lua_pushnumber(L, co->getRadYawDep());
1084         return 1;
1085 }
1086
1087 // get_look_pitch2(self)
1088 int ObjectRef::l_get_look_vertical(lua_State *L)
1089 {
1090         NO_MAP_LOCK_REQUIRED;
1091         ObjectRef *ref = checkobject(L, 1);
1092         PlayerSAO* co = getplayersao(ref);
1093         if (co == NULL) return 0;
1094         // Do it
1095         lua_pushnumber(L, co->getRadPitch());
1096         return 1;
1097 }
1098
1099 // get_look_yaw2(self)
1100 int ObjectRef::l_get_look_horizontal(lua_State *L)
1101 {
1102         NO_MAP_LOCK_REQUIRED;
1103         ObjectRef *ref = checkobject(L, 1);
1104         PlayerSAO* co = getplayersao(ref);
1105         if (co == NULL) return 0;
1106         // Do it
1107         lua_pushnumber(L, co->getRadYaw());
1108         return 1;
1109 }
1110
1111 // set_look_vertical(self, radians)
1112 int ObjectRef::l_set_look_vertical(lua_State *L)
1113 {
1114         NO_MAP_LOCK_REQUIRED;
1115         ObjectRef *ref = checkobject(L, 1);
1116         PlayerSAO* co = getplayersao(ref);
1117         if (co == NULL) return 0;
1118         float pitch = luaL_checknumber(L, 2) * core::RADTODEG;
1119         // Do it
1120         co->setPitchAndSend(pitch);
1121         return 1;
1122 }
1123
1124 // set_look_horizontal(self, radians)
1125 int ObjectRef::l_set_look_horizontal(lua_State *L)
1126 {
1127         NO_MAP_LOCK_REQUIRED;
1128         ObjectRef *ref = checkobject(L, 1);
1129         PlayerSAO* co = getplayersao(ref);
1130         if (co == NULL) return 0;
1131         float yaw = luaL_checknumber(L, 2) * core::RADTODEG;
1132         // Do it
1133         co->setYawAndSend(yaw);
1134         return 1;
1135 }
1136
1137 // DEPRECATED
1138 // set_look_pitch(self, radians)
1139 int ObjectRef::l_set_look_pitch(lua_State *L)
1140 {
1141         NO_MAP_LOCK_REQUIRED;
1142
1143         log_deprecated(L,
1144                 "Deprecated call to set_look_pitch, use set_look_vertical instead.");
1145
1146         ObjectRef *ref = checkobject(L, 1);
1147         PlayerSAO* co = getplayersao(ref);
1148         if (co == NULL) return 0;
1149         float pitch = luaL_checknumber(L, 2) * core::RADTODEG;
1150         // Do it
1151         co->setPitchAndSend(pitch);
1152         return 1;
1153 }
1154
1155 // DEPRECATED
1156 // set_look_yaw(self, radians)
1157 int ObjectRef::l_set_look_yaw(lua_State *L)
1158 {
1159         NO_MAP_LOCK_REQUIRED;
1160
1161         log_deprecated(L,
1162                 "Deprecated call to set_look_yaw, use set_look_horizontal instead.");
1163
1164         ObjectRef *ref = checkobject(L, 1);
1165         PlayerSAO* co = getplayersao(ref);
1166         if (co == NULL) return 0;
1167         float yaw = luaL_checknumber(L, 2) * core::RADTODEG;
1168         // Do it
1169         co->setYawAndSend(yaw);
1170         return 1;
1171 }
1172
1173 // set_breath(self, breath)
1174 int ObjectRef::l_set_breath(lua_State *L)
1175 {
1176         NO_MAP_LOCK_REQUIRED;
1177         ObjectRef *ref = checkobject(L, 1);
1178         PlayerSAO* co = getplayersao(ref);
1179         if (co == NULL) return 0;
1180         u16 breath = luaL_checknumber(L, 2);
1181         co->setBreath(breath);
1182
1183         return 0;
1184 }
1185
1186 // get_breath(self)
1187 int ObjectRef::l_get_breath(lua_State *L)
1188 {
1189         NO_MAP_LOCK_REQUIRED;
1190         ObjectRef *ref = checkobject(L, 1);
1191         PlayerSAO* co = getplayersao(ref);
1192         if (co == NULL) return 0;
1193         // Do it
1194         u16 breath = co->getBreath();
1195         lua_pushinteger (L, breath);
1196         return 1;
1197 }
1198
1199 // set_attribute(self, attribute, value)
1200 int ObjectRef::l_set_attribute(lua_State *L)
1201 {
1202         ObjectRef *ref = checkobject(L, 1);
1203         PlayerSAO* co = getplayersao(ref);
1204         if (co == NULL)
1205                 return 0;
1206
1207         std::string attr = luaL_checkstring(L, 2);
1208         if (lua_isnil(L, 3)) {
1209                 co->getMeta().removeString(attr);
1210         } else {
1211                 std::string value = luaL_checkstring(L, 3);
1212                 co->getMeta().setString(attr, value);
1213         }
1214         return 1;
1215 }
1216
1217 // get_attribute(self, attribute)
1218 int ObjectRef::l_get_attribute(lua_State *L)
1219 {
1220         ObjectRef *ref = checkobject(L, 1);
1221         PlayerSAO* co = getplayersao(ref);
1222         if (co == NULL)
1223                 return 0;
1224
1225         std::string attr = luaL_checkstring(L, 2);
1226
1227         std::string value;
1228         if (co->getMeta().getStringToRef(attr, value)) {
1229                 lua_pushstring(L, value.c_str());
1230                 return 1;
1231         }
1232
1233         return 0;
1234 }
1235
1236
1237 // get_meta(self, attribute)
1238 int ObjectRef::l_get_meta(lua_State *L)
1239 {
1240         ObjectRef *ref = checkobject(L, 1);
1241         PlayerSAO *co = getplayersao(ref);
1242         if (co == NULL)
1243                 return 0;
1244
1245         PlayerMetaRef::create(L, &co->getMeta());
1246         return 1;
1247 }
1248
1249
1250 // set_inventory_formspec(self, formspec)
1251 int ObjectRef::l_set_inventory_formspec(lua_State *L)
1252 {
1253         NO_MAP_LOCK_REQUIRED;
1254         ObjectRef *ref = checkobject(L, 1);
1255         RemotePlayer *player = getplayer(ref);
1256         if (player == NULL) return 0;
1257         std::string formspec = luaL_checkstring(L, 2);
1258
1259         player->inventory_formspec = formspec;
1260         getServer(L)->reportInventoryFormspecModified(player->getName());
1261         lua_pushboolean(L, true);
1262         return 1;
1263 }
1264
1265 // get_inventory_formspec(self) -> formspec
1266 int ObjectRef::l_get_inventory_formspec(lua_State *L)
1267 {
1268         NO_MAP_LOCK_REQUIRED;
1269         ObjectRef *ref = checkobject(L, 1);
1270         RemotePlayer *player = getplayer(ref);
1271         if (player == NULL) return 0;
1272
1273         std::string formspec = player->inventory_formspec;
1274         lua_pushlstring(L, formspec.c_str(), formspec.size());
1275         return 1;
1276 }
1277
1278 // set_formspec_prepend(self, formspec)
1279 int ObjectRef::l_set_formspec_prepend(lua_State *L)
1280 {
1281         NO_MAP_LOCK_REQUIRED;
1282         ObjectRef *ref = checkobject(L, 1);
1283         RemotePlayer *player = getplayer(ref);
1284         if (player == NULL)
1285                 return 0;
1286
1287         std::string formspec = luaL_checkstring(L, 2);
1288
1289         player->formspec_prepend = formspec;
1290         getServer(L)->reportFormspecPrependModified(player->getName());
1291         lua_pushboolean(L, true);
1292         return 1;
1293 }
1294
1295 // get_formspec_prepend(self) -> formspec
1296 int ObjectRef::l_get_formspec_prepend(lua_State *L)
1297 {
1298         NO_MAP_LOCK_REQUIRED;
1299         ObjectRef *ref = checkobject(L, 1);
1300         RemotePlayer *player = getplayer(ref);
1301         if (player == NULL)
1302                  return 0;
1303
1304         std::string formspec = player->formspec_prepend;
1305         lua_pushlstring(L, formspec.c_str(), formspec.size());
1306         return 1;
1307 }
1308
1309 // get_player_control(self)
1310 int ObjectRef::l_get_player_control(lua_State *L)
1311 {
1312         NO_MAP_LOCK_REQUIRED;
1313         ObjectRef *ref = checkobject(L, 1);
1314         RemotePlayer *player = getplayer(ref);
1315         if (player == NULL) {
1316                 lua_pushlstring(L, "", 0);
1317                 return 1;
1318         }
1319
1320         const PlayerControl &control = player->getPlayerControl();
1321         lua_newtable(L);
1322         lua_pushboolean(L, control.up);
1323         lua_setfield(L, -2, "up");
1324         lua_pushboolean(L, control.down);
1325         lua_setfield(L, -2, "down");
1326         lua_pushboolean(L, control.left);
1327         lua_setfield(L, -2, "left");
1328         lua_pushboolean(L, control.right);
1329         lua_setfield(L, -2, "right");
1330         lua_pushboolean(L, control.jump);
1331         lua_setfield(L, -2, "jump");
1332         lua_pushboolean(L, control.aux1);
1333         lua_setfield(L, -2, "aux1");
1334         lua_pushboolean(L, control.sneak);
1335         lua_setfield(L, -2, "sneak");
1336         lua_pushboolean(L, control.LMB);
1337         lua_setfield(L, -2, "LMB");
1338         lua_pushboolean(L, control.RMB);
1339         lua_setfield(L, -2, "RMB");
1340         return 1;
1341 }
1342
1343 // get_player_control_bits(self)
1344 int ObjectRef::l_get_player_control_bits(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                 lua_pushlstring(L, "", 0);
1351                 return 1;
1352         }
1353         // Do it
1354         lua_pushnumber(L, player->keyPressed);
1355         return 1;
1356 }
1357
1358 // hud_add(self, form)
1359 int ObjectRef::l_hud_add(lua_State *L)
1360 {
1361         NO_MAP_LOCK_REQUIRED;
1362         ObjectRef *ref = checkobject(L, 1);
1363         RemotePlayer *player = getplayer(ref);
1364         if (player == NULL)
1365                 return 0;
1366
1367         HudElement *elem = new HudElement;
1368         read_hud_element(L, elem);
1369
1370         u32 id = getServer(L)->hudAdd(player, elem);
1371         if (id == U32_MAX) {
1372                 delete elem;
1373                 return 0;
1374         }
1375
1376         lua_pushnumber(L, id);
1377         return 1;
1378 }
1379
1380 // hud_remove(self, id)
1381 int ObjectRef::l_hud_remove(lua_State *L)
1382 {
1383         NO_MAP_LOCK_REQUIRED;
1384         ObjectRef *ref = checkobject(L, 1);
1385         RemotePlayer *player = getplayer(ref);
1386         if (player == NULL)
1387                 return 0;
1388
1389         u32 id = -1;
1390         if (!lua_isnil(L, 2))
1391                 id = lua_tonumber(L, 2);
1392
1393         if (!getServer(L)->hudRemove(player, id))
1394                 return 0;
1395
1396         lua_pushboolean(L, true);
1397         return 1;
1398 }
1399
1400 // hud_change(self, id, stat, data)
1401 int ObjectRef::l_hud_change(lua_State *L)
1402 {
1403         NO_MAP_LOCK_REQUIRED;
1404         ObjectRef *ref = checkobject(L, 1);
1405         RemotePlayer *player = getplayer(ref);
1406         if (player == NULL)
1407                 return 0;
1408
1409         u32 id = lua_isnumber(L, 2) ? lua_tonumber(L, 2) : -1;
1410
1411         HudElement *e = player->getHud(id);
1412         if (!e)
1413                 return 0;
1414
1415         void *value = NULL;
1416         HudElementStat stat = read_hud_change(L, e, &value);
1417
1418         getServer(L)->hudChange(player, id, stat, value);
1419
1420         lua_pushboolean(L, true);
1421         return 1;
1422 }
1423
1424 // hud_get(self, id)
1425 int ObjectRef::l_hud_get(lua_State *L)
1426 {
1427         NO_MAP_LOCK_REQUIRED;
1428         ObjectRef *ref = checkobject(L, 1);
1429         RemotePlayer *player = getplayer(ref);
1430         if (player == NULL)
1431                 return 0;
1432
1433         u32 id = lua_tonumber(L, -1);
1434
1435         HudElement *e = player->getHud(id);
1436         if (!e)
1437                 return 0;
1438         push_hud_element(L, e);
1439         return 1;
1440 }
1441
1442 // hud_set_flags(self, flags)
1443 int ObjectRef::l_hud_set_flags(lua_State *L)
1444 {
1445         NO_MAP_LOCK_REQUIRED;
1446         ObjectRef *ref = checkobject(L, 1);
1447         RemotePlayer *player = getplayer(ref);
1448         if (player == NULL)
1449                 return 0;
1450
1451         u32 flags = 0;
1452         u32 mask  = 0;
1453         bool flag;
1454
1455         const EnumString *esp = es_HudBuiltinElement;
1456         for (int i = 0; esp[i].str; i++) {
1457                 if (getboolfield(L, 2, esp[i].str, flag)) {
1458                         flags |= esp[i].num * flag;
1459                         mask  |= esp[i].num;
1460                 }
1461         }
1462         if (!getServer(L)->hudSetFlags(player, flags, mask))
1463                 return 0;
1464
1465         lua_pushboolean(L, true);
1466         return 1;
1467 }
1468
1469 int ObjectRef::l_hud_get_flags(lua_State *L)
1470 {
1471         NO_MAP_LOCK_REQUIRED;
1472         ObjectRef *ref = checkobject(L, 1);
1473         RemotePlayer *player = getplayer(ref);
1474         if (player == NULL)
1475                 return 0;
1476
1477         lua_newtable(L);
1478         lua_pushboolean(L, player->hud_flags & HUD_FLAG_HOTBAR_VISIBLE);
1479         lua_setfield(L, -2, "hotbar");
1480         lua_pushboolean(L, player->hud_flags & HUD_FLAG_HEALTHBAR_VISIBLE);
1481         lua_setfield(L, -2, "healthbar");
1482         lua_pushboolean(L, player->hud_flags & HUD_FLAG_CROSSHAIR_VISIBLE);
1483         lua_setfield(L, -2, "crosshair");
1484         lua_pushboolean(L, player->hud_flags & HUD_FLAG_WIELDITEM_VISIBLE);
1485         lua_setfield(L, -2, "wielditem");
1486         lua_pushboolean(L, player->hud_flags & HUD_FLAG_BREATHBAR_VISIBLE);
1487         lua_setfield(L, -2, "breathbar");
1488         lua_pushboolean(L, player->hud_flags & HUD_FLAG_MINIMAP_VISIBLE);
1489         lua_setfield(L, -2, "minimap");
1490         lua_pushboolean(L, player->hud_flags & HUD_FLAG_MINIMAP_RADAR_VISIBLE);
1491         lua_setfield(L, -2, "minimap_radar");
1492
1493         return 1;
1494 }
1495
1496 // hud_set_hotbar_itemcount(self, hotbar_itemcount)
1497 int ObjectRef::l_hud_set_hotbar_itemcount(lua_State *L)
1498 {
1499         NO_MAP_LOCK_REQUIRED;
1500         ObjectRef *ref = checkobject(L, 1);
1501         RemotePlayer *player = getplayer(ref);
1502         if (player == NULL)
1503                 return 0;
1504
1505         s32 hotbar_itemcount = lua_tonumber(L, 2);
1506
1507         if (!getServer(L)->hudSetHotbarItemcount(player, hotbar_itemcount))
1508                 return 0;
1509
1510         lua_pushboolean(L, true);
1511         return 1;
1512 }
1513
1514 // hud_get_hotbar_itemcount(self)
1515 int ObjectRef::l_hud_get_hotbar_itemcount(lua_State *L)
1516 {
1517         NO_MAP_LOCK_REQUIRED;
1518         ObjectRef *ref = checkobject(L, 1);
1519         RemotePlayer *player = getplayer(ref);
1520         if (player == NULL)
1521                 return 0;
1522
1523         lua_pushnumber(L, player->getHotbarItemcount());
1524         return 1;
1525 }
1526
1527 // hud_set_hotbar_image(self, name)
1528 int ObjectRef::l_hud_set_hotbar_image(lua_State *L)
1529 {
1530         NO_MAP_LOCK_REQUIRED;
1531         ObjectRef *ref = checkobject(L, 1);
1532         RemotePlayer *player = getplayer(ref);
1533         if (player == NULL)
1534                 return 0;
1535
1536         std::string name = lua_tostring(L, 2);
1537
1538         getServer(L)->hudSetHotbarImage(player, name);
1539         return 1;
1540 }
1541
1542 // hud_get_hotbar_image(self)
1543 int ObjectRef::l_hud_get_hotbar_image(lua_State *L)
1544 {
1545         NO_MAP_LOCK_REQUIRED;
1546         ObjectRef *ref = checkobject(L, 1);
1547         RemotePlayer *player = getplayer(ref);
1548         if (player == NULL)
1549                 return 0;
1550
1551         const std::string &name = player->getHotbarImage();
1552         lua_pushlstring(L, name.c_str(), name.size());
1553         return 1;
1554 }
1555
1556 // hud_set_hotbar_selected_image(self, name)
1557 int ObjectRef::l_hud_set_hotbar_selected_image(lua_State *L)
1558 {
1559         NO_MAP_LOCK_REQUIRED;
1560         ObjectRef *ref = checkobject(L, 1);
1561         RemotePlayer *player = getplayer(ref);
1562         if (player == NULL)
1563                 return 0;
1564
1565         std::string name = lua_tostring(L, 2);
1566
1567         getServer(L)->hudSetHotbarSelectedImage(player, name);
1568         return 1;
1569 }
1570
1571 // hud_get_hotbar_selected_image(self)
1572 int ObjectRef::l_hud_get_hotbar_selected_image(lua_State *L)
1573 {
1574         NO_MAP_LOCK_REQUIRED;
1575         ObjectRef *ref = checkobject(L, 1);
1576         RemotePlayer *player = getplayer(ref);
1577         if (player == NULL)
1578                 return 0;
1579
1580         const std::string &name = player->getHotbarSelectedImage();
1581         lua_pushlstring(L, name.c_str(), name.size());
1582         return 1;
1583 }
1584
1585 // set_sky(self, bgcolor, type, list, clouds = true)
1586 int ObjectRef::l_set_sky(lua_State *L)
1587 {
1588         NO_MAP_LOCK_REQUIRED;
1589         ObjectRef *ref = checkobject(L, 1);
1590         RemotePlayer *player = getplayer(ref);
1591         if (player == NULL)
1592                 return 0;
1593
1594         video::SColor bgcolor(255,255,255,255);
1595         read_color(L, 2, &bgcolor);
1596
1597         std::string type = luaL_checkstring(L, 3);
1598
1599         std::vector<std::string> params;
1600         if (lua_istable(L, 4)) {
1601                 lua_pushnil(L);
1602                 while (lua_next(L, 4) != 0) {
1603                         // key at index -2 and value at index -1
1604                         if (lua_isstring(L, -1))
1605                                 params.emplace_back(lua_tostring(L, -1));
1606                         else
1607                                 params.emplace_back("");
1608                         // removes value, keeps key for next iteration
1609                         lua_pop(L, 1);
1610                 }
1611         }
1612
1613         if (type == "skybox" && params.size() != 6)
1614                 throw LuaError("skybox expects 6 textures");
1615
1616         bool clouds = true;
1617         if (lua_isboolean(L, 5))
1618                 clouds = lua_toboolean(L, 5);
1619
1620         getServer(L)->setSky(player, bgcolor, type, params, clouds);
1621         lua_pushboolean(L, true);
1622         return 1;
1623 }
1624
1625 // get_sky(self)
1626 int ObjectRef::l_get_sky(lua_State *L)
1627 {
1628         NO_MAP_LOCK_REQUIRED;
1629         ObjectRef *ref = checkobject(L, 1);
1630         RemotePlayer *player = getplayer(ref);
1631         if (player == NULL)
1632                 return 0;
1633         video::SColor bgcolor(255, 255, 255, 255);
1634         std::string type;
1635         std::vector<std::string> params;
1636         bool clouds;
1637
1638         player->getSky(&bgcolor, &type, &params, &clouds);
1639         type = type.empty() ? "regular" : type;
1640
1641         push_ARGB8(L, bgcolor);
1642         lua_pushlstring(L, type.c_str(), type.size());
1643         lua_newtable(L);
1644         s16 i = 1;
1645         for (const std::string &param : params) {
1646                 lua_pushlstring(L, param.c_str(), param.size());
1647                 lua_rawseti(L, -2, i);
1648                 i++;
1649         }
1650         lua_pushboolean(L, clouds);
1651         return 4;
1652 }
1653
1654 // set_clouds(self, {density=, color=, ambient=, height=, thickness=, speed=})
1655 int ObjectRef::l_set_clouds(lua_State *L)
1656 {
1657         NO_MAP_LOCK_REQUIRED;
1658         ObjectRef *ref = checkobject(L, 1);
1659         RemotePlayer *player = getplayer(ref);
1660         if (!player)
1661                 return 0;
1662         if (!lua_istable(L, 2))
1663                 return 0;
1664
1665         CloudParams cloud_params = player->getCloudParams();
1666
1667         cloud_params.density = getfloatfield_default(L, 2, "density", cloud_params.density);
1668
1669         lua_getfield(L, 2, "color");
1670         if (!lua_isnil(L, -1))
1671                 read_color(L, -1, &cloud_params.color_bright);
1672         lua_pop(L, 1);
1673         lua_getfield(L, 2, "ambient");
1674         if (!lua_isnil(L, -1))
1675                 read_color(L, -1, &cloud_params.color_ambient);
1676         lua_pop(L, 1);
1677
1678         cloud_params.height    = getfloatfield_default(L, 2, "height",    cloud_params.height   );
1679         cloud_params.thickness = getfloatfield_default(L, 2, "thickness", cloud_params.thickness);
1680
1681         lua_getfield(L, 2, "speed");
1682         if (lua_istable(L, -1)) {
1683                 v2f new_speed;
1684                 new_speed.X = getfloatfield_default(L, -1, "x", 0);
1685                 new_speed.Y = getfloatfield_default(L, -1, "z", 0);
1686                 cloud_params.speed = new_speed;
1687         }
1688         lua_pop(L, 1);
1689
1690         getServer(L)->setClouds(player, cloud_params);
1691         lua_pushboolean(L, true);
1692         return 1;
1693 }
1694
1695 int ObjectRef::l_get_clouds(lua_State *L)
1696 {
1697         NO_MAP_LOCK_REQUIRED;
1698         ObjectRef *ref = checkobject(L, 1);
1699         RemotePlayer *player = getplayer(ref);
1700         if (!player)
1701                 return 0;
1702         const CloudParams &cloud_params = player->getCloudParams();
1703
1704         lua_newtable(L);
1705         lua_pushnumber(L, cloud_params.density);
1706         lua_setfield(L, -2, "density");
1707         push_ARGB8(L, cloud_params.color_bright);
1708         lua_setfield(L, -2, "color");
1709         push_ARGB8(L, cloud_params.color_ambient);
1710         lua_setfield(L, -2, "ambient");
1711         lua_pushnumber(L, cloud_params.height);
1712         lua_setfield(L, -2, "height");
1713         lua_pushnumber(L, cloud_params.thickness);
1714         lua_setfield(L, -2, "thickness");
1715         lua_newtable(L);
1716         lua_pushnumber(L, cloud_params.speed.X);
1717         lua_setfield(L, -2, "x");
1718         lua_pushnumber(L, cloud_params.speed.Y);
1719         lua_setfield(L, -2, "y");
1720         lua_setfield(L, -2, "speed");
1721
1722         return 1;
1723 }
1724
1725
1726 // override_day_night_ratio(self, brightness=0...1)
1727 int ObjectRef::l_override_day_night_ratio(lua_State *L)
1728 {
1729         NO_MAP_LOCK_REQUIRED;
1730         ObjectRef *ref = checkobject(L, 1);
1731         RemotePlayer *player = getplayer(ref);
1732         if (player == NULL)
1733                 return 0;
1734
1735         bool do_override = false;
1736         float ratio = 0.0f;
1737         if (!lua_isnil(L, 2)) {
1738                 do_override = true;
1739                 ratio = luaL_checknumber(L, 2);
1740         }
1741
1742         if (!getServer(L)->overrideDayNightRatio(player, do_override, ratio))
1743                 return 0;
1744
1745         lua_pushboolean(L, true);
1746         return 1;
1747 }
1748
1749 // get_day_night_ratio(self)
1750 int ObjectRef::l_get_day_night_ratio(lua_State *L)
1751 {
1752         NO_MAP_LOCK_REQUIRED;
1753         ObjectRef *ref = checkobject(L, 1);
1754         RemotePlayer *player = getplayer(ref);
1755         if (player == NULL)
1756                 return 0;
1757
1758         bool do_override;
1759         float ratio;
1760         player->getDayNightRatio(&do_override, &ratio);
1761
1762         if (do_override)
1763                 lua_pushnumber(L, ratio);
1764         else
1765                 lua_pushnil(L);
1766
1767         return 1;
1768 }
1769
1770 ObjectRef::ObjectRef(ServerActiveObject *object):
1771         m_object(object)
1772 {
1773         //infostream<<"ObjectRef created for id="<<m_object->getId()<<std::endl;
1774 }
1775
1776 // Creates an ObjectRef and leaves it on top of stack
1777 // Not callable from Lua; all references are created on the C side.
1778 void ObjectRef::create(lua_State *L, ServerActiveObject *object)
1779 {
1780         ObjectRef *o = new ObjectRef(object);
1781         //infostream<<"ObjectRef::create: o="<<o<<std::endl;
1782         *(void **)(lua_newuserdata(L, sizeof(void *))) = o;
1783         luaL_getmetatable(L, className);
1784         lua_setmetatable(L, -2);
1785 }
1786
1787 void ObjectRef::set_null(lua_State *L)
1788 {
1789         ObjectRef *o = checkobject(L, -1);
1790         o->m_object = NULL;
1791 }
1792
1793 void ObjectRef::Register(lua_State *L)
1794 {
1795         lua_newtable(L);
1796         int methodtable = lua_gettop(L);
1797         luaL_newmetatable(L, className);
1798         int metatable = lua_gettop(L);
1799
1800         lua_pushliteral(L, "__metatable");
1801         lua_pushvalue(L, methodtable);
1802         lua_settable(L, metatable);  // hide metatable from Lua getmetatable()
1803
1804         lua_pushliteral(L, "__index");
1805         lua_pushvalue(L, methodtable);
1806         lua_settable(L, metatable);
1807
1808         lua_pushliteral(L, "__gc");
1809         lua_pushcfunction(L, gc_object);
1810         lua_settable(L, metatable);
1811
1812         lua_pop(L, 1);  // drop metatable
1813
1814         luaL_openlib(L, 0, methods, 0);  // fill methodtable
1815         lua_pop(L, 1);  // drop methodtable
1816
1817         // Cannot be created from Lua
1818         //lua_register(L, className, create_object);
1819 }
1820
1821 const char ObjectRef::className[] = "ObjectRef";
1822 const luaL_Reg ObjectRef::methods[] = {
1823         // ServerActiveObject
1824         luamethod(ObjectRef, remove),
1825         luamethod_aliased(ObjectRef, get_pos, getpos),
1826         luamethod_aliased(ObjectRef, set_pos, setpos),
1827         luamethod_aliased(ObjectRef, move_to, moveto),
1828         luamethod(ObjectRef, punch),
1829         luamethod(ObjectRef, right_click),
1830         luamethod(ObjectRef, set_hp),
1831         luamethod(ObjectRef, get_hp),
1832         luamethod(ObjectRef, get_inventory),
1833         luamethod(ObjectRef, get_wield_list),
1834         luamethod(ObjectRef, get_wield_index),
1835         luamethod(ObjectRef, get_wielded_item),
1836         luamethod(ObjectRef, set_wielded_item),
1837         luamethod(ObjectRef, set_armor_groups),
1838         luamethod(ObjectRef, get_armor_groups),
1839         luamethod(ObjectRef, set_animation),
1840         luamethod(ObjectRef, get_animation),
1841         luamethod(ObjectRef, set_animation_frame_speed),
1842         luamethod(ObjectRef, set_bone_position),
1843         luamethod(ObjectRef, get_bone_position),
1844         luamethod(ObjectRef, set_attach),
1845         luamethod(ObjectRef, get_attach),
1846         luamethod(ObjectRef, set_detach),
1847         luamethod(ObjectRef, set_properties),
1848         luamethod(ObjectRef, get_properties),
1849         luamethod(ObjectRef, set_nametag_attributes),
1850         luamethod(ObjectRef, get_nametag_attributes),
1851         // LuaEntitySAO-only
1852         luamethod_aliased(ObjectRef, set_velocity, setvelocity),
1853         luamethod(ObjectRef, add_velocity),
1854         luamethod_aliased(ObjectRef, get_velocity, getvelocity),
1855         luamethod_aliased(ObjectRef, set_acceleration, setacceleration),
1856         luamethod_aliased(ObjectRef, get_acceleration, getacceleration),
1857         luamethod_aliased(ObjectRef, set_yaw, setyaw),
1858         luamethod_aliased(ObjectRef, get_yaw, getyaw),
1859         luamethod_aliased(ObjectRef, set_texture_mod, settexturemod),
1860         luamethod_aliased(ObjectRef, set_sprite, setsprite),
1861         luamethod(ObjectRef, get_entity_name),
1862         luamethod(ObjectRef, get_luaentity),
1863         // Player-only
1864         luamethod(ObjectRef, is_player),
1865         luamethod(ObjectRef, is_player_connected),
1866         luamethod(ObjectRef, get_player_name),
1867         luamethod(ObjectRef, get_player_velocity),
1868         luamethod(ObjectRef, get_look_dir),
1869         luamethod(ObjectRef, get_look_pitch),
1870         luamethod(ObjectRef, get_look_yaw),
1871         luamethod(ObjectRef, get_look_vertical),
1872         luamethod(ObjectRef, get_look_horizontal),
1873         luamethod(ObjectRef, set_look_horizontal),
1874         luamethod(ObjectRef, set_look_vertical),
1875         luamethod(ObjectRef, set_look_yaw),
1876         luamethod(ObjectRef, set_look_pitch),
1877         luamethod(ObjectRef, get_breath),
1878         luamethod(ObjectRef, set_breath),
1879         luamethod(ObjectRef, get_attribute),
1880         luamethod(ObjectRef, set_attribute),
1881         luamethod(ObjectRef, get_meta),
1882         luamethod(ObjectRef, set_inventory_formspec),
1883         luamethod(ObjectRef, get_inventory_formspec),
1884         luamethod(ObjectRef, set_formspec_prepend),
1885         luamethod(ObjectRef, get_formspec_prepend),
1886         luamethod(ObjectRef, get_player_control),
1887         luamethod(ObjectRef, get_player_control_bits),
1888         luamethod(ObjectRef, set_physics_override),
1889         luamethod(ObjectRef, get_physics_override),
1890         luamethod(ObjectRef, hud_add),
1891         luamethod(ObjectRef, hud_remove),
1892         luamethod(ObjectRef, hud_change),
1893         luamethod(ObjectRef, hud_get),
1894         luamethod(ObjectRef, hud_set_flags),
1895         luamethod(ObjectRef, hud_get_flags),
1896         luamethod(ObjectRef, hud_set_hotbar_itemcount),
1897         luamethod(ObjectRef, hud_get_hotbar_itemcount),
1898         luamethod(ObjectRef, hud_set_hotbar_image),
1899         luamethod(ObjectRef, hud_get_hotbar_image),
1900         luamethod(ObjectRef, hud_set_hotbar_selected_image),
1901         luamethod(ObjectRef, hud_get_hotbar_selected_image),
1902         luamethod(ObjectRef, set_sky),
1903         luamethod(ObjectRef, get_sky),
1904         luamethod(ObjectRef, set_clouds),
1905         luamethod(ObjectRef, get_clouds),
1906         luamethod(ObjectRef, override_day_night_ratio),
1907         luamethod(ObjectRef, get_day_night_ratio),
1908         luamethod(ObjectRef, set_local_animation),
1909         luamethod(ObjectRef, get_local_animation),
1910         luamethod(ObjectRef, set_eye_offset),
1911         luamethod(ObjectRef, get_eye_offset),
1912         {0,0}
1913 };