3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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.
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.
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.
20 #include "lua_api/l_env.h"
21 #include "lua_api/l_internal.h"
22 #include "lua_api/l_nodemeta.h"
23 #include "lua_api/l_nodetimer.h"
24 #include "lua_api/l_noise.h"
25 #include "lua_api/l_vmanip.h"
26 #include "common/c_converter.h"
27 #include "common/c_content.h"
28 #include "scripting_game.h"
29 #include "environment.h"
32 #include "daynightratio.h"
33 #include "util/pointedthing.h"
34 #include "content_sao.h"
37 #include "pathfinder.h"
39 #define GET_ENV_PTR ServerEnvironment* env = \
40 dynamic_cast<ServerEnvironment*>(getEnv(L)); \
41 if (env == NULL) return 0
43 ///////////////////////////////////////////////////////////////////////////////
46 void LuaABM::trigger(ServerEnvironment *env, v3s16 p, MapNode n,
47 u32 active_object_count, u32 active_object_count_wider)
49 GameScripting *scriptIface = env->getScriptIface();
50 scriptIface->realityCheck();
52 lua_State *L = scriptIface->getStack();
53 sanity_check(lua_checkstack(L, 20));
54 StackUnroller stack_unroller(L);
56 int error_handler = PUSH_ERROR_HANDLER(L);
58 // Get registered_abms
59 lua_getglobal(L, "core");
60 lua_getfield(L, -1, "registered_abms");
61 luaL_checktype(L, -1, LUA_TTABLE);
62 lua_remove(L, -2); // Remove core
64 // Get registered_abms[m_id]
65 lua_pushnumber(L, m_id);
69 lua_remove(L, -2); // Remove registered_abms
71 scriptIface->setOriginFromTable(-1);
74 luaL_checktype(L, -1, LUA_TTABLE);
75 lua_getfield(L, -1, "action");
76 luaL_checktype(L, -1, LUA_TFUNCTION);
77 lua_remove(L, -2); // Remove registered_abms[m_id]
79 pushnode(L, n, env->getGameDef()->ndef());
80 lua_pushnumber(L, active_object_count);
81 lua_pushnumber(L, active_object_count_wider);
83 int result = lua_pcall(L, 4, 0, error_handler);
85 scriptIface->scriptError(result, "LuaABM::trigger");
87 lua_pop(L, 1); // Pop error handler
92 // set_node(pos, node)
93 // pos = {x=num, y=num, z=num}
94 int ModApiEnvMod::l_set_node(lua_State *L)
98 INodeDefManager *ndef = env->getGameDef()->ndef();
100 v3s16 pos = read_v3s16(L, 1);
101 MapNode n = readnode(L, 2, ndef);
103 bool succeeded = env->setNode(pos, n);
104 lua_pushboolean(L, succeeded);
108 int ModApiEnvMod::l_add_node(lua_State *L)
110 return l_set_node(L);
114 // pos = {x=num, y=num, z=num}
115 int ModApiEnvMod::l_remove_node(lua_State *L)
120 v3s16 pos = read_v3s16(L, 1);
122 bool succeeded = env->removeNode(pos);
123 lua_pushboolean(L, succeeded);
127 // swap_node(pos, node)
128 // pos = {x=num, y=num, z=num}
129 int ModApiEnvMod::l_swap_node(lua_State *L)
133 INodeDefManager *ndef = env->getGameDef()->ndef();
135 v3s16 pos = read_v3s16(L, 1);
136 MapNode n = readnode(L, 2, ndef);
138 bool succeeded = env->swapNode(pos, n);
139 lua_pushboolean(L, succeeded);
144 // pos = {x=num, y=num, z=num}
145 int ModApiEnvMod::l_get_node(lua_State *L)
150 v3s16 pos = read_v3s16(L, 1);
152 MapNode n = env->getMap().getNodeNoEx(pos);
154 pushnode(L, n, env->getGameDef()->ndef());
158 // get_node_or_nil(pos)
159 // pos = {x=num, y=num, z=num}
160 int ModApiEnvMod::l_get_node_or_nil(lua_State *L)
165 v3s16 pos = read_v3s16(L, 1);
168 MapNode n = env->getMap().getNodeNoEx(pos, &pos_ok);
171 pushnode(L, n, env->getGameDef()->ndef());
178 // get_node_light(pos, timeofday)
179 // pos = {x=num, y=num, z=num}
180 // timeofday: nil = current time, 0 = night, 0.5 = day
181 int ModApiEnvMod::l_get_node_light(lua_State *L)
186 v3s16 pos = read_v3s16(L, 1);
187 u32 time_of_day = env->getTimeOfDay();
188 if(lua_isnumber(L, 2))
189 time_of_day = 24000.0 * lua_tonumber(L, 2);
190 time_of_day %= 24000;
191 u32 dnr = time_to_daynight_ratio(time_of_day, true);
194 MapNode n = env->getMap().getNodeNoEx(pos, &is_position_ok);
195 if (is_position_ok) {
196 INodeDefManager *ndef = env->getGameDef()->ndef();
197 lua_pushinteger(L, n.getLightBlend(dnr, ndef));
204 // place_node(pos, node)
205 // pos = {x=num, y=num, z=num}
206 int ModApiEnvMod::l_place_node(lua_State *L)
210 ScriptApiItem *scriptIfaceItem = getScriptApi<ScriptApiItem>(L);
211 Server *server = getServer(L);
212 INodeDefManager *ndef = server->ndef();
213 IItemDefManager *idef = server->idef();
215 v3s16 pos = read_v3s16(L, 1);
216 MapNode n = readnode(L, 2, ndef);
218 // Don't attempt to load non-loaded area as of now
219 MapNode n_old = env->getMap().getNodeNoEx(pos);
220 if(n_old.getContent() == CONTENT_IGNORE){
221 lua_pushboolean(L, false);
224 // Create item to place
225 ItemStack item(ndef->get(n).name, 1, 0, "", idef);
226 // Make pointed position
227 PointedThing pointed;
228 pointed.type = POINTEDTHING_NODE;
229 pointed.node_abovesurface = pos;
230 pointed.node_undersurface = pos + v3s16(0,-1,0);
231 // Place it with a NULL placer (appears in Lua as a non-functional
233 bool success = scriptIfaceItem->item_OnPlace(item, NULL, pointed);
234 lua_pushboolean(L, success);
239 // pos = {x=num, y=num, z=num}
240 int ModApiEnvMod::l_dig_node(lua_State *L)
244 ScriptApiNode *scriptIfaceNode = getScriptApi<ScriptApiNode>(L);
246 v3s16 pos = read_v3s16(L, 1);
248 // Don't attempt to load non-loaded area as of now
249 MapNode n = env->getMap().getNodeNoEx(pos);
250 if(n.getContent() == CONTENT_IGNORE){
251 lua_pushboolean(L, false);
254 // Dig it out with a NULL digger (appears in Lua as a
255 // non-functional ObjectRef)
256 bool success = scriptIfaceNode->node_on_dig(pos, n, NULL);
257 lua_pushboolean(L, success);
262 // pos = {x=num, y=num, z=num}
263 int ModApiEnvMod::l_punch_node(lua_State *L)
267 ScriptApiNode *scriptIfaceNode = getScriptApi<ScriptApiNode>(L);
269 v3s16 pos = read_v3s16(L, 1);
271 // Don't attempt to load non-loaded area as of now
272 MapNode n = env->getMap().getNodeNoEx(pos);
273 if(n.getContent() == CONTENT_IGNORE){
274 lua_pushboolean(L, false);
277 // Punch it with a NULL puncher (appears in Lua as a non-functional
279 bool success = scriptIfaceNode->node_on_punch(pos, n, NULL, PointedThing());
280 lua_pushboolean(L, success);
284 // get_node_max_level(pos)
285 // pos = {x=num, y=num, z=num}
286 int ModApiEnvMod::l_get_node_max_level(lua_State *L)
290 v3s16 pos = read_v3s16(L, 1);
291 MapNode n = env->getMap().getNodeNoEx(pos);
292 lua_pushnumber(L, n.getMaxLevel(env->getGameDef()->ndef()));
296 // get_node_level(pos)
297 // pos = {x=num, y=num, z=num}
298 int ModApiEnvMod::l_get_node_level(lua_State *L)
302 v3s16 pos = read_v3s16(L, 1);
303 MapNode n = env->getMap().getNodeNoEx(pos);
304 lua_pushnumber(L, n.getLevel(env->getGameDef()->ndef()));
308 // set_node_level(pos, level)
309 // pos = {x=num, y=num, z=num}
311 int ModApiEnvMod::l_set_node_level(lua_State *L)
315 v3s16 pos = read_v3s16(L, 1);
317 if(lua_isnumber(L, 2))
318 level = lua_tonumber(L, 2);
319 MapNode n = env->getMap().getNodeNoEx(pos);
320 lua_pushnumber(L, n.setLevel(env->getGameDef()->ndef(), level));
321 env->setNode(pos, n);
325 // add_node_level(pos, level)
326 // pos = {x=num, y=num, z=num}
328 int ModApiEnvMod::l_add_node_level(lua_State *L)
332 v3s16 pos = read_v3s16(L, 1);
334 if(lua_isnumber(L, 2))
335 level = lua_tonumber(L, 2);
336 MapNode n = env->getMap().getNodeNoEx(pos);
337 lua_pushnumber(L, n.addLevel(env->getGameDef()->ndef(), level));
338 env->setNode(pos, n);
342 // find_nodes_with_meta(pos1, pos2)
343 int ModApiEnvMod::l_find_nodes_with_meta(lua_State *L)
347 std::vector<v3s16> positions = env->getMap().findNodesWithMetadata(
348 check_v3s16(L, 1), check_v3s16(L, 2));
351 for (size_t i = 0; i != positions.size(); i++) {
352 push_v3s16(L, positions[i]);
353 lua_rawseti(L, -2, i + 1);
360 int ModApiEnvMod::l_get_meta(lua_State *L)
365 v3s16 p = read_v3s16(L, 1);
366 NodeMetaRef::create(L, p, env);
370 // get_node_timer(pos)
371 int ModApiEnvMod::l_get_node_timer(lua_State *L)
376 v3s16 p = read_v3s16(L, 1);
377 NodeTimerRef::create(L, p, env);
381 // add_entity(pos, entityname) -> ObjectRef or nil
382 // pos = {x=num, y=num, z=num}
383 int ModApiEnvMod::l_add_entity(lua_State *L)
388 v3f pos = checkFloatPos(L, 1);
390 const char *name = luaL_checkstring(L, 2);
392 ServerActiveObject *obj = new LuaEntitySAO(env, pos, name, "");
393 int objectid = env->addActiveObject(obj);
394 // If failed to add, return nothing (reads as nil)
398 getScriptApiBase(L)->objectrefGetOrCreate(L, obj);
402 // add_item(pos, itemstack or itemstring or table) -> ObjectRef or nil
403 // pos = {x=num, y=num, z=num}
404 int ModApiEnvMod::l_add_item(lua_State *L)
409 //v3f pos = checkFloatPos(L, 1);
411 ItemStack item = read_item(L, 2,getServer(L));
412 if(item.empty() || !item.isKnown(getServer(L)->idef()))
415 int error_handler = PUSH_ERROR_HANDLER(L);
417 // Use spawn_item to spawn a __builtin:item
418 lua_getglobal(L, "core");
419 lua_getfield(L, -1, "spawn_item");
420 lua_remove(L, -2); // Remove core
424 lua_pushstring(L, item.getItemString().c_str());
426 PCALL_RESL(L, lua_pcall(L, 2, 1, error_handler));
428 lua_remove(L, error_handler);
432 // get_player_by_name(name)
433 int ModApiEnvMod::l_get_player_by_name(lua_State *L)
438 const char *name = luaL_checkstring(L, 1);
439 Player *player = env->getPlayer(name);
444 PlayerSAO *sao = player->getPlayerSAO();
449 // Put player on stack
450 getScriptApiBase(L)->objectrefGetOrCreate(L, sao);
454 // get_objects_inside_radius(pos, radius)
455 int ModApiEnvMod::l_get_objects_inside_radius(lua_State *L)
460 v3f pos = checkFloatPos(L, 1);
461 float radius = luaL_checknumber(L, 2) * BS;
462 std::vector<u16> ids;
463 env->getObjectsInsideRadius(ids, pos, radius);
464 ScriptApiBase *script = getScriptApiBase(L);
465 lua_createtable(L, ids.size(), 0);
466 std::vector<u16>::const_iterator iter = ids.begin();
467 for(u32 i = 0; iter != ids.end(); iter++) {
468 ServerActiveObject *obj = env->getActiveObject(*iter);
469 // Insert object reference into table
470 script->objectrefGetOrCreate(L, obj);
471 lua_rawseti(L, -2, ++i);
476 // set_timeofday(val)
478 int ModApiEnvMod::l_set_timeofday(lua_State *L)
483 float timeofday_f = luaL_checknumber(L, 1);
484 sanity_check(timeofday_f >= 0.0 && timeofday_f <= 1.0);
485 int timeofday_mh = (int)(timeofday_f * 24000.0);
486 // This should be set directly in the environment but currently
487 // such changes aren't immediately sent to the clients, so call
488 // the server instead.
489 //env->setTimeOfDay(timeofday_mh);
490 getServer(L)->setTimeOfDay(timeofday_mh);
494 // get_timeofday() -> 0...1
495 int ModApiEnvMod::l_get_timeofday(lua_State *L)
500 int timeofday_mh = env->getTimeOfDay();
501 float timeofday_f = (float)timeofday_mh / 24000.0;
502 lua_pushnumber(L, timeofday_f);
507 int ModApiEnvMod::l_get_gametime(lua_State *L)
511 int game_time = env->getGameTime();
512 lua_pushnumber(L, game_time);
517 // find_node_near(pos, radius, nodenames) -> pos or nil
518 // nodenames: eg. {"ignore", "group:tree"} or "default:dirt"
519 int ModApiEnvMod::l_find_node_near(lua_State *L)
523 INodeDefManager *ndef = getServer(L)->ndef();
524 v3s16 pos = read_v3s16(L, 1);
525 int radius = luaL_checkinteger(L, 2);
526 std::set<content_t> filter;
527 if(lua_istable(L, 3)){
530 while(lua_next(L, table) != 0){
531 // key at index -2 and value at index -1
532 luaL_checktype(L, -1, LUA_TSTRING);
533 ndef->getIds(lua_tostring(L, -1), filter);
534 // removes value, keeps key for next iteration
537 } else if(lua_isstring(L, 3)){
538 ndef->getIds(lua_tostring(L, 3), filter);
541 for(int d=1; d<=radius; d++){
542 std::vector<v3s16> list = FacePositionCache::getFacePositions(d);
543 for(std::vector<v3s16>::iterator i = list.begin();
544 i != list.end(); ++i){
545 v3s16 p = pos + (*i);
546 content_t c = env->getMap().getNodeNoEx(p).getContent();
547 if(filter.count(c) != 0){
556 // find_nodes_in_area(minp, maxp, nodenames) -> list of positions
557 // nodenames: eg. {"ignore", "group:tree"} or "default:dirt"
558 int ModApiEnvMod::l_find_nodes_in_area(lua_State *L)
562 INodeDefManager *ndef = getServer(L)->ndef();
563 v3s16 minp = read_v3s16(L, 1);
564 v3s16 maxp = read_v3s16(L, 2);
565 std::set<content_t> filter;
566 if(lua_istable(L, 3)) {
569 while(lua_next(L, table) != 0) {
570 // key at index -2 and value at index -1
571 luaL_checktype(L, -1, LUA_TSTRING);
572 ndef->getIds(lua_tostring(L, -1), filter);
573 // removes value, keeps key for next iteration
576 } else if(lua_isstring(L, 3)) {
577 ndef->getIds(lua_tostring(L, 3), filter);
580 std::map<content_t, u16> individual_count;
584 for (s16 x = minp.X; x <= maxp.X; x++)
585 for (s16 y = minp.Y; y <= maxp.Y; y++)
586 for (s16 z = minp.Z; z <= maxp.Z; z++) {
588 content_t c = env->getMap().getNodeNoEx(p).getContent();
589 if (filter.count(c) != 0) {
591 lua_rawseti(L, -2, ++i);
592 individual_count[c]++;
596 for (std::set<content_t>::iterator it = filter.begin();
597 it != filter.end(); ++it) {
598 lua_pushnumber(L, individual_count[*it]);
599 lua_setfield(L, -2, ndef->get(*it).name.c_str());
604 // find_nodes_in_area_under_air(minp, maxp, nodenames) -> list of positions
605 // nodenames: e.g. {"ignore", "group:tree"} or "default:dirt"
606 int ModApiEnvMod::l_find_nodes_in_area_under_air(lua_State *L)
608 /* Note: A similar but generalized (and therefore slower) version of this
609 * function could be created -- e.g. find_nodes_in_area_under -- which
610 * would accept a node name (or ID?) or list of names that the "above node"
617 INodeDefManager *ndef = getServer(L)->ndef();
618 v3s16 minp = read_v3s16(L, 1);
619 v3s16 maxp = read_v3s16(L, 2);
620 std::set<content_t> filter;
622 if (lua_istable(L, 3)) {
625 while(lua_next(L, table) != 0) {
626 // key at index -2 and value at index -1
627 luaL_checktype(L, -1, LUA_TSTRING);
628 ndef->getIds(lua_tostring(L, -1), filter);
629 // removes value, keeps key for next iteration
632 } else if (lua_isstring(L, 3)) {
633 ndef->getIds(lua_tostring(L, 3), filter);
638 for (s16 x = minp.X; x <= maxp.X; x++)
639 for (s16 z = minp.Z; z <= maxp.Z; z++) {
642 content_t c = env->getMap().getNodeNoEx(p).getContent();
643 for (; y <= maxp.Y; y++) {
644 v3s16 psurf(x, y + 1, z);
645 content_t csurf = env->getMap().getNodeNoEx(psurf).getContent();
646 if(c != CONTENT_AIR && csurf == CONTENT_AIR &&
647 filter.count(c) != 0) {
648 push_v3s16(L, v3s16(x, y, z));
649 lua_rawseti(L, -2, ++i);
657 // get_perlin(seeddiff, octaves, persistence, scale)
658 // returns world-specific PerlinNoise
659 int ModApiEnvMod::l_get_perlin(lua_State *L)
665 if (lua_istable(L, 1)) {
666 read_noiseparams(L, 1, ¶ms);
668 params.seed = luaL_checkint(L, 1);
669 params.octaves = luaL_checkint(L, 2);
670 params.persist = luaL_checknumber(L, 3);
671 params.spread = v3f(1, 1, 1) * luaL_checknumber(L, 4);
674 params.seed += (int)env->getServerMap().getSeed();
676 LuaPerlinNoise *n = new LuaPerlinNoise(¶ms);
677 *(void **)(lua_newuserdata(L, sizeof(void *))) = n;
678 luaL_getmetatable(L, "PerlinNoise");
679 lua_setmetatable(L, -2);
683 // get_perlin_map(noiseparams, size)
684 // returns world-specific PerlinNoiseMap
685 int ModApiEnvMod::l_get_perlin_map(lua_State *L)
690 if (!read_noiseparams(L, 1, &np))
692 v3s16 size = read_v3s16(L, 2);
694 int seed = (int)(env->getServerMap().getSeed());
695 LuaPerlinNoiseMap *n = new LuaPerlinNoiseMap(&np, seed, size);
696 *(void **)(lua_newuserdata(L, sizeof(void *))) = n;
697 luaL_getmetatable(L, "PerlinNoiseMap");
698 lua_setmetatable(L, -2);
703 // returns voxel manipulator
704 int ModApiEnvMod::l_get_voxel_manip(lua_State *L)
708 Map *map = &(env->getMap());
709 LuaVoxelManip *o = (lua_istable(L, 1) && lua_istable(L, 2)) ?
710 new LuaVoxelManip(map, read_v3s16(L, 1), read_v3s16(L, 2)) :
711 new LuaVoxelManip(map);
713 *(void **)(lua_newuserdata(L, sizeof(void *))) = o;
714 luaL_getmetatable(L, "VoxelManip");
715 lua_setmetatable(L, -2);
720 // clear all objects in the environment
721 int ModApiEnvMod::l_clear_objects(lua_State *L)
725 env->clearAllObjects();
729 // line_of_sight(pos1, pos2, stepsize) -> true/false, pos
730 int ModApiEnvMod::l_line_of_sight(lua_State *L)
732 float stepsize = 1.0;
736 // read position 1 from lua
737 v3f pos1 = checkFloatPos(L, 1);
738 // read position 2 from lua
739 v3f pos2 = checkFloatPos(L, 2);
740 //read step size from lua
741 if (lua_isnumber(L, 3)) {
742 stepsize = lua_tonumber(L, 3);
746 bool success = env->line_of_sight(pos1, pos2, stepsize, &p);
747 lua_pushboolean(L, success);
756 // emerge_area(p1, p2)
757 // emerge mapblocks in area p1..p2
758 int ModApiEnvMod::l_emerge_area(lua_State *L)
762 EmergeManager *emerge = getServer(L)->getEmergeManager();
764 v3s16 bpmin = getNodeBlockPos(read_v3s16(L, 1));
765 v3s16 bpmax = getNodeBlockPos(read_v3s16(L, 2));
766 sortBoxVerticies(bpmin, bpmax);
768 for (s16 z = bpmin.Z; z <= bpmax.Z; z++)
769 for (s16 y = bpmin.Y; y <= bpmax.Y; y++)
770 for (s16 x = bpmin.X; x <= bpmax.X; x++) {
771 v3s16 chunkpos(x, y, z);
772 emerge->enqueueBlockEmerge(PEER_ID_INEXISTENT, chunkpos, false, true);
778 // delete_area(p1, p2)
779 // delete mapblocks in area p1..p2
780 int ModApiEnvMod::l_delete_area(lua_State *L)
784 v3s16 bpmin = getNodeBlockPos(read_v3s16(L, 1));
785 v3s16 bpmax = getNodeBlockPos(read_v3s16(L, 2));
786 sortBoxVerticies(bpmin, bpmax);
788 ServerMap &map = env->getServerMap();
791 event.type = MEET_OTHER;
794 for (s16 z = bpmin.Z; z <= bpmax.Z; z++)
795 for (s16 y = bpmin.Y; y <= bpmax.Y; y++)
796 for (s16 x = bpmin.X; x <= bpmax.X; x++) {
798 if (map.deleteBlock(bp)) {
799 env->setStaticForActiveObjectsInBlock(bp, false);
800 event.modified_blocks.insert(bp);
806 map.dispatchEvent(&event);
807 lua_pushboolean(L, success);
811 // find_path(pos1, pos2, searchdistance,
812 // max_jump, max_drop, algorithm) -> table containing path
813 int ModApiEnvMod::l_find_path(lua_State *L)
817 v3s16 pos1 = read_v3s16(L, 1);
818 v3s16 pos2 = read_v3s16(L, 2);
819 unsigned int searchdistance = luaL_checkint(L, 3);
820 unsigned int max_jump = luaL_checkint(L, 4);
821 unsigned int max_drop = luaL_checkint(L, 5);
822 algorithm algo = A_PLAIN_NP;
823 if (!lua_isnil(L, 6)) {
824 std::string algorithm = luaL_checkstring(L,6);
826 if (algorithm == "A*")
829 if (algorithm == "Dijkstra")
833 std::vector<v3s16> path =
834 get_Path(env,pos1,pos2,searchdistance,max_jump,max_drop,algo);
839 int top = lua_gettop(L);
840 unsigned int index = 1;
841 for (std::vector<v3s16>::iterator i = path.begin(); i != path.end();i++)
843 lua_pushnumber(L,index);
845 lua_settable(L, top);
854 // spawn_tree(pos, treedef)
855 int ModApiEnvMod::l_spawn_tree(lua_State *L)
859 v3s16 p0 = read_v3s16(L, 1);
861 treegen::TreeDef tree_def;
862 std::string trunk,leaves,fruit;
863 INodeDefManager *ndef = env->getGameDef()->ndef();
865 if(lua_istable(L, 2))
867 getstringfield(L, 2, "axiom", tree_def.initial_axiom);
868 getstringfield(L, 2, "rules_a", tree_def.rules_a);
869 getstringfield(L, 2, "rules_b", tree_def.rules_b);
870 getstringfield(L, 2, "rules_c", tree_def.rules_c);
871 getstringfield(L, 2, "rules_d", tree_def.rules_d);
872 getstringfield(L, 2, "trunk", trunk);
873 tree_def.trunknode=ndef->getId(trunk);
874 getstringfield(L, 2, "leaves", leaves);
875 tree_def.leavesnode=ndef->getId(leaves);
876 tree_def.leaves2_chance=0;
877 getstringfield(L, 2, "leaves2", leaves);
880 tree_def.leaves2node=ndef->getId(leaves);
881 getintfield(L, 2, "leaves2_chance", tree_def.leaves2_chance);
883 getintfield(L, 2, "angle", tree_def.angle);
884 getintfield(L, 2, "iterations", tree_def.iterations);
885 if (!getintfield(L, 2, "random_level", tree_def.iterations_random_level))
886 tree_def.iterations_random_level = 0;
887 getstringfield(L, 2, "trunk_type", tree_def.trunk_type);
888 getboolfield(L, 2, "thin_branches", tree_def.thin_branches);
889 tree_def.fruit_chance=0;
890 getstringfield(L, 2, "fruit", fruit);
893 tree_def.fruitnode=ndef->getId(fruit);
894 getintfield(L, 2, "fruit_chance",tree_def.fruit_chance);
896 tree_def.explicit_seed = getintfield(L, 2, "seed", tree_def.seed);
902 if ((e = treegen::spawn_ltree (env, p0, ndef, tree_def)) != treegen::SUCCESS) {
903 if (e == treegen::UNBALANCED_BRACKETS) {
904 luaL_error(L, "spawn_tree(): closing ']' has no matching opening bracket");
906 luaL_error(L, "spawn_tree(): unknown error");
913 // transforming_liquid_add(pos)
914 int ModApiEnvMod::l_transforming_liquid_add(lua_State *L)
918 v3s16 p0 = read_v3s16(L, 1);
919 env->getMap().transforming_liquid_add(p0);
923 // forceload_block(blockpos)
924 // blockpos = {x=num, y=num, z=num}
925 int ModApiEnvMod::l_forceload_block(lua_State *L)
929 v3s16 blockpos = read_v3s16(L, 1);
930 env->getForceloadedBlocks()->insert(blockpos);
934 // forceload_free_block(blockpos)
935 // blockpos = {x=num, y=num, z=num}
936 int ModApiEnvMod::l_forceload_free_block(lua_State *L)
940 v3s16 blockpos = read_v3s16(L, 1);
941 env->getForceloadedBlocks()->erase(blockpos);
946 int ModApiEnvMod::l_get_us_time(lua_State *L)
948 lua_pushnumber(L, porting::getTimeUs());
952 void ModApiEnvMod::Initialize(lua_State *L, int top)
958 API_FCT(remove_node);
960 API_FCT(get_node_or_nil);
961 API_FCT(get_node_light);
965 API_FCT(get_node_max_level);
966 API_FCT(get_node_level);
967 API_FCT(set_node_level);
968 API_FCT(add_node_level);
970 API_FCT(find_nodes_with_meta);
972 API_FCT(get_node_timer);
973 API_FCT(get_player_by_name);
974 API_FCT(get_objects_inside_radius);
975 API_FCT(set_timeofday);
976 API_FCT(get_timeofday);
977 API_FCT(get_gametime);
978 API_FCT(find_node_near);
979 API_FCT(find_nodes_in_area);
980 API_FCT(find_nodes_in_area_under_air);
981 API_FCT(emerge_area);
982 API_FCT(delete_area);
984 API_FCT(get_perlin_map);
985 API_FCT(get_voxel_manip);
986 API_FCT(clear_objects);
989 API_FCT(line_of_sight);
990 API_FCT(transforming_liquid_add);
991 API_FCT(forceload_block);
992 API_FCT(forceload_free_block);
993 API_FCT(get_us_time);