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 struct EnumString ModApiEnvMod::es_ClearObjectsMode[] =
41 {CLEAR_OBJECTS_MODE_FULL, "full"},
42 {CLEAR_OBJECTS_MODE_QUICK, "quick"},
46 ///////////////////////////////////////////////////////////////////////////////
49 void LuaABM::trigger(ServerEnvironment *env, v3s16 p, MapNode n,
50 u32 active_object_count, u32 active_object_count_wider)
52 GameScripting *scriptIface = env->getScriptIface();
53 scriptIface->realityCheck();
55 lua_State *L = scriptIface->getStack();
56 sanity_check(lua_checkstack(L, 20));
57 StackUnroller stack_unroller(L);
59 int error_handler = PUSH_ERROR_HANDLER(L);
61 // Get registered_abms
62 lua_getglobal(L, "core");
63 lua_getfield(L, -1, "registered_abms");
64 luaL_checktype(L, -1, LUA_TTABLE);
65 lua_remove(L, -2); // Remove core
67 // Get registered_abms[m_id]
68 lua_pushnumber(L, m_id);
72 lua_remove(L, -2); // Remove registered_abms
74 scriptIface->setOriginFromTable(-1);
77 luaL_checktype(L, -1, LUA_TTABLE);
78 lua_getfield(L, -1, "action");
79 luaL_checktype(L, -1, LUA_TFUNCTION);
80 lua_remove(L, -2); // Remove registered_abms[m_id]
82 pushnode(L, n, env->getGameDef()->ndef());
83 lua_pushnumber(L, active_object_count);
84 lua_pushnumber(L, active_object_count_wider);
86 int result = lua_pcall(L, 4, 0, error_handler);
88 scriptIface->scriptError(result, "LuaABM::trigger");
90 lua_pop(L, 1); // Pop error handler
93 void LuaEmergeAreaCallback(v3s16 blockpos, EmergeAction action, void *param)
95 ScriptCallbackState *state = (ScriptCallbackState *)param;
96 assert(state != NULL);
97 assert(state->script != NULL);
98 assert(state->refcount > 0);
102 state->script->on_emerge_area_completion(blockpos, action, state);
104 if (state->refcount == 0)
108 // Exported functions
110 // set_node(pos, node)
111 // pos = {x=num, y=num, z=num}
112 int ModApiEnvMod::l_set_node(lua_State *L)
116 INodeDefManager *ndef = env->getGameDef()->ndef();
118 v3s16 pos = read_v3s16(L, 1);
119 MapNode n = readnode(L, 2, ndef);
121 bool succeeded = env->setNode(pos, n);
122 lua_pushboolean(L, succeeded);
126 int ModApiEnvMod::l_add_node(lua_State *L)
128 return l_set_node(L);
132 // pos = {x=num, y=num, z=num}
133 int ModApiEnvMod::l_remove_node(lua_State *L)
138 v3s16 pos = read_v3s16(L, 1);
140 bool succeeded = env->removeNode(pos);
141 lua_pushboolean(L, succeeded);
145 // swap_node(pos, node)
146 // pos = {x=num, y=num, z=num}
147 int ModApiEnvMod::l_swap_node(lua_State *L)
151 INodeDefManager *ndef = env->getGameDef()->ndef();
153 v3s16 pos = read_v3s16(L, 1);
154 MapNode n = readnode(L, 2, ndef);
156 bool succeeded = env->swapNode(pos, n);
157 lua_pushboolean(L, succeeded);
162 // pos = {x=num, y=num, z=num}
163 int ModApiEnvMod::l_get_node(lua_State *L)
168 v3s16 pos = read_v3s16(L, 1);
170 MapNode n = env->getMap().getNodeNoEx(pos);
172 pushnode(L, n, env->getGameDef()->ndef());
176 // get_node_or_nil(pos)
177 // pos = {x=num, y=num, z=num}
178 int ModApiEnvMod::l_get_node_or_nil(lua_State *L)
183 v3s16 pos = read_v3s16(L, 1);
186 MapNode n = env->getMap().getNodeNoEx(pos, &pos_ok);
189 pushnode(L, n, env->getGameDef()->ndef());
196 // get_node_light(pos, timeofday)
197 // pos = {x=num, y=num, z=num}
198 // timeofday: nil = current time, 0 = night, 0.5 = day
199 int ModApiEnvMod::l_get_node_light(lua_State *L)
204 v3s16 pos = read_v3s16(L, 1);
205 u32 time_of_day = env->getTimeOfDay();
206 if(lua_isnumber(L, 2))
207 time_of_day = 24000.0 * lua_tonumber(L, 2);
208 time_of_day %= 24000;
209 u32 dnr = time_to_daynight_ratio(time_of_day, true);
212 MapNode n = env->getMap().getNodeNoEx(pos, &is_position_ok);
213 if (is_position_ok) {
214 INodeDefManager *ndef = env->getGameDef()->ndef();
215 lua_pushinteger(L, n.getLightBlend(dnr, ndef));
222 // place_node(pos, node)
223 // pos = {x=num, y=num, z=num}
224 int ModApiEnvMod::l_place_node(lua_State *L)
228 ScriptApiItem *scriptIfaceItem = getScriptApi<ScriptApiItem>(L);
229 Server *server = getServer(L);
230 INodeDefManager *ndef = server->ndef();
231 IItemDefManager *idef = server->idef();
233 v3s16 pos = read_v3s16(L, 1);
234 MapNode n = readnode(L, 2, ndef);
236 // Don't attempt to load non-loaded area as of now
237 MapNode n_old = env->getMap().getNodeNoEx(pos);
238 if(n_old.getContent() == CONTENT_IGNORE){
239 lua_pushboolean(L, false);
242 // Create item to place
243 ItemStack item(ndef->get(n).name, 1, 0, "", idef);
244 // Make pointed position
245 PointedThing pointed;
246 pointed.type = POINTEDTHING_NODE;
247 pointed.node_abovesurface = pos;
248 pointed.node_undersurface = pos + v3s16(0,-1,0);
249 // Place it with a NULL placer (appears in Lua as a non-functional
251 bool success = scriptIfaceItem->item_OnPlace(item, NULL, pointed);
252 lua_pushboolean(L, success);
257 // pos = {x=num, y=num, z=num}
258 int ModApiEnvMod::l_dig_node(lua_State *L)
262 ScriptApiNode *scriptIfaceNode = getScriptApi<ScriptApiNode>(L);
264 v3s16 pos = read_v3s16(L, 1);
266 // Don't attempt to load non-loaded area as of now
267 MapNode n = env->getMap().getNodeNoEx(pos);
268 if(n.getContent() == CONTENT_IGNORE){
269 lua_pushboolean(L, false);
272 // Dig it out with a NULL digger (appears in Lua as a
273 // non-functional ObjectRef)
274 bool success = scriptIfaceNode->node_on_dig(pos, n, NULL);
275 lua_pushboolean(L, success);
280 // pos = {x=num, y=num, z=num}
281 int ModApiEnvMod::l_punch_node(lua_State *L)
285 ScriptApiNode *scriptIfaceNode = getScriptApi<ScriptApiNode>(L);
287 v3s16 pos = read_v3s16(L, 1);
289 // Don't attempt to load non-loaded area as of now
290 MapNode n = env->getMap().getNodeNoEx(pos);
291 if(n.getContent() == CONTENT_IGNORE){
292 lua_pushboolean(L, false);
295 // Punch it with a NULL puncher (appears in Lua as a non-functional
297 bool success = scriptIfaceNode->node_on_punch(pos, n, NULL, PointedThing());
298 lua_pushboolean(L, success);
302 // get_node_max_level(pos)
303 // pos = {x=num, y=num, z=num}
304 int ModApiEnvMod::l_get_node_max_level(lua_State *L)
308 v3s16 pos = read_v3s16(L, 1);
309 MapNode n = env->getMap().getNodeNoEx(pos);
310 lua_pushnumber(L, n.getMaxLevel(env->getGameDef()->ndef()));
314 // get_node_level(pos)
315 // pos = {x=num, y=num, z=num}
316 int ModApiEnvMod::l_get_node_level(lua_State *L)
320 v3s16 pos = read_v3s16(L, 1);
321 MapNode n = env->getMap().getNodeNoEx(pos);
322 lua_pushnumber(L, n.getLevel(env->getGameDef()->ndef()));
326 // set_node_level(pos, level)
327 // pos = {x=num, y=num, z=num}
329 int ModApiEnvMod::l_set_node_level(lua_State *L)
333 v3s16 pos = read_v3s16(L, 1);
335 if(lua_isnumber(L, 2))
336 level = lua_tonumber(L, 2);
337 MapNode n = env->getMap().getNodeNoEx(pos);
338 lua_pushnumber(L, n.setLevel(env->getGameDef()->ndef(), level));
339 env->setNode(pos, n);
343 // add_node_level(pos, level)
344 // pos = {x=num, y=num, z=num}
346 int ModApiEnvMod::l_add_node_level(lua_State *L)
350 v3s16 pos = read_v3s16(L, 1);
352 if(lua_isnumber(L, 2))
353 level = lua_tonumber(L, 2);
354 MapNode n = env->getMap().getNodeNoEx(pos);
355 lua_pushnumber(L, n.addLevel(env->getGameDef()->ndef(), level));
356 env->setNode(pos, n);
360 // find_nodes_with_meta(pos1, pos2)
361 int ModApiEnvMod::l_find_nodes_with_meta(lua_State *L)
365 std::vector<v3s16> positions = env->getMap().findNodesWithMetadata(
366 check_v3s16(L, 1), check_v3s16(L, 2));
369 for (size_t i = 0; i != positions.size(); i++) {
370 push_v3s16(L, positions[i]);
371 lua_rawseti(L, -2, i + 1);
378 int ModApiEnvMod::l_get_meta(lua_State *L)
383 v3s16 p = read_v3s16(L, 1);
384 NodeMetaRef::create(L, p, env);
388 // get_node_timer(pos)
389 int ModApiEnvMod::l_get_node_timer(lua_State *L)
394 v3s16 p = read_v3s16(L, 1);
395 NodeTimerRef::create(L, p, env);
399 // add_entity(pos, entityname) -> ObjectRef or nil
400 // pos = {x=num, y=num, z=num}
401 int ModApiEnvMod::l_add_entity(lua_State *L)
406 v3f pos = checkFloatPos(L, 1);
408 const char *name = luaL_checkstring(L, 2);
410 ServerActiveObject *obj = new LuaEntitySAO(env, pos, name, "");
411 int objectid = env->addActiveObject(obj);
412 // If failed to add, return nothing (reads as nil)
416 getScriptApiBase(L)->objectrefGetOrCreate(L, obj);
420 // add_item(pos, itemstack or itemstring or table) -> ObjectRef or nil
421 // pos = {x=num, y=num, z=num}
422 int ModApiEnvMod::l_add_item(lua_State *L)
427 //v3f pos = checkFloatPos(L, 1);
429 ItemStack item = read_item(L, 2,getServer(L));
430 if(item.empty() || !item.isKnown(getServer(L)->idef()))
433 int error_handler = PUSH_ERROR_HANDLER(L);
435 // Use spawn_item to spawn a __builtin:item
436 lua_getglobal(L, "core");
437 lua_getfield(L, -1, "spawn_item");
438 lua_remove(L, -2); // Remove core
442 lua_pushstring(L, item.getItemString().c_str());
444 PCALL_RESL(L, lua_pcall(L, 2, 1, error_handler));
446 lua_remove(L, error_handler);
450 // get_player_by_name(name)
451 int ModApiEnvMod::l_get_player_by_name(lua_State *L)
456 const char *name = luaL_checkstring(L, 1);
457 Player *player = env->getPlayer(name);
462 PlayerSAO *sao = player->getPlayerSAO();
467 // Put player on stack
468 getScriptApiBase(L)->objectrefGetOrCreate(L, sao);
472 // get_objects_inside_radius(pos, radius)
473 int ModApiEnvMod::l_get_objects_inside_radius(lua_State *L)
478 v3f pos = checkFloatPos(L, 1);
479 float radius = luaL_checknumber(L, 2) * BS;
480 std::vector<u16> ids;
481 env->getObjectsInsideRadius(ids, pos, radius);
482 ScriptApiBase *script = getScriptApiBase(L);
483 lua_createtable(L, ids.size(), 0);
484 std::vector<u16>::const_iterator iter = ids.begin();
485 for(u32 i = 0; iter != ids.end(); iter++) {
486 ServerActiveObject *obj = env->getActiveObject(*iter);
487 // Insert object reference into table
488 script->objectrefGetOrCreate(L, obj);
489 lua_rawseti(L, -2, ++i);
494 // set_timeofday(val)
496 int ModApiEnvMod::l_set_timeofday(lua_State *L)
501 float timeofday_f = luaL_checknumber(L, 1);
502 sanity_check(timeofday_f >= 0.0 && timeofday_f <= 1.0);
503 int timeofday_mh = (int)(timeofday_f * 24000.0);
504 // This should be set directly in the environment but currently
505 // such changes aren't immediately sent to the clients, so call
506 // the server instead.
507 //env->setTimeOfDay(timeofday_mh);
508 getServer(L)->setTimeOfDay(timeofday_mh);
512 // get_timeofday() -> 0...1
513 int ModApiEnvMod::l_get_timeofday(lua_State *L)
518 int timeofday_mh = env->getTimeOfDay();
519 float timeofday_f = (float)timeofday_mh / 24000.0;
520 lua_pushnumber(L, timeofday_f);
525 int ModApiEnvMod::l_get_gametime(lua_State *L)
529 int game_time = env->getGameTime();
530 lua_pushnumber(L, game_time);
535 // find_node_near(pos, radius, nodenames) -> pos or nil
536 // nodenames: eg. {"ignore", "group:tree"} or "default:dirt"
537 int ModApiEnvMod::l_find_node_near(lua_State *L)
541 INodeDefManager *ndef = getServer(L)->ndef();
542 v3s16 pos = read_v3s16(L, 1);
543 int radius = luaL_checkinteger(L, 2);
544 std::set<content_t> filter;
545 if(lua_istable(L, 3)){
548 while(lua_next(L, table) != 0){
549 // key at index -2 and value at index -1
550 luaL_checktype(L, -1, LUA_TSTRING);
551 ndef->getIds(lua_tostring(L, -1), filter);
552 // removes value, keeps key for next iteration
555 } else if(lua_isstring(L, 3)){
556 ndef->getIds(lua_tostring(L, 3), filter);
559 for(int d=1; d<=radius; d++){
560 std::vector<v3s16> list = FacePositionCache::getFacePositions(d);
561 for(std::vector<v3s16>::iterator i = list.begin();
562 i != list.end(); ++i){
563 v3s16 p = pos + (*i);
564 content_t c = env->getMap().getNodeNoEx(p).getContent();
565 if(filter.count(c) != 0){
574 // find_nodes_in_area(minp, maxp, nodenames) -> list of positions
575 // nodenames: eg. {"ignore", "group:tree"} or "default:dirt"
576 int ModApiEnvMod::l_find_nodes_in_area(lua_State *L)
580 INodeDefManager *ndef = getServer(L)->ndef();
581 v3s16 minp = read_v3s16(L, 1);
582 v3s16 maxp = read_v3s16(L, 2);
583 std::set<content_t> filter;
584 if(lua_istable(L, 3)) {
587 while(lua_next(L, table) != 0) {
588 // key at index -2 and value at index -1
589 luaL_checktype(L, -1, LUA_TSTRING);
590 ndef->getIds(lua_tostring(L, -1), filter);
591 // removes value, keeps key for next iteration
594 } else if(lua_isstring(L, 3)) {
595 ndef->getIds(lua_tostring(L, 3), filter);
598 std::map<content_t, u16> individual_count;
602 for (s16 x = minp.X; x <= maxp.X; x++)
603 for (s16 y = minp.Y; y <= maxp.Y; y++)
604 for (s16 z = minp.Z; z <= maxp.Z; z++) {
606 content_t c = env->getMap().getNodeNoEx(p).getContent();
607 if (filter.count(c) != 0) {
609 lua_rawseti(L, -2, ++i);
610 individual_count[c]++;
614 for (std::set<content_t>::iterator it = filter.begin();
615 it != filter.end(); ++it) {
616 lua_pushnumber(L, individual_count[*it]);
617 lua_setfield(L, -2, ndef->get(*it).name.c_str());
622 // find_nodes_in_area_under_air(minp, maxp, nodenames) -> list of positions
623 // nodenames: e.g. {"ignore", "group:tree"} or "default:dirt"
624 int ModApiEnvMod::l_find_nodes_in_area_under_air(lua_State *L)
626 /* Note: A similar but generalized (and therefore slower) version of this
627 * function could be created -- e.g. find_nodes_in_area_under -- which
628 * would accept a node name (or ID?) or list of names that the "above node"
635 INodeDefManager *ndef = getServer(L)->ndef();
636 v3s16 minp = read_v3s16(L, 1);
637 v3s16 maxp = read_v3s16(L, 2);
638 std::set<content_t> filter;
640 if (lua_istable(L, 3)) {
643 while(lua_next(L, table) != 0) {
644 // key at index -2 and value at index -1
645 luaL_checktype(L, -1, LUA_TSTRING);
646 ndef->getIds(lua_tostring(L, -1), filter);
647 // removes value, keeps key for next iteration
650 } else if (lua_isstring(L, 3)) {
651 ndef->getIds(lua_tostring(L, 3), filter);
656 for (s16 x = minp.X; x <= maxp.X; x++)
657 for (s16 z = minp.Z; z <= maxp.Z; z++) {
660 content_t c = env->getMap().getNodeNoEx(p).getContent();
661 for (; y <= maxp.Y; y++) {
662 v3s16 psurf(x, y + 1, z);
663 content_t csurf = env->getMap().getNodeNoEx(psurf).getContent();
664 if(c != CONTENT_AIR && csurf == CONTENT_AIR &&
665 filter.count(c) != 0) {
666 push_v3s16(L, v3s16(x, y, z));
667 lua_rawseti(L, -2, ++i);
675 // get_perlin(seeddiff, octaves, persistence, scale)
676 // returns world-specific PerlinNoise
677 int ModApiEnvMod::l_get_perlin(lua_State *L)
679 GET_ENV_PTR_NO_MAP_LOCK;
683 if (lua_istable(L, 1)) {
684 read_noiseparams(L, 1, ¶ms);
686 params.seed = luaL_checkint(L, 1);
687 params.octaves = luaL_checkint(L, 2);
688 params.persist = luaL_checknumber(L, 3);
689 params.spread = v3f(1, 1, 1) * luaL_checknumber(L, 4);
692 params.seed += (int)env->getServerMap().getSeed();
694 LuaPerlinNoise *n = new LuaPerlinNoise(¶ms);
695 *(void **)(lua_newuserdata(L, sizeof(void *))) = n;
696 luaL_getmetatable(L, "PerlinNoise");
697 lua_setmetatable(L, -2);
701 // get_perlin_map(noiseparams, size)
702 // returns world-specific PerlinNoiseMap
703 int ModApiEnvMod::l_get_perlin_map(lua_State *L)
705 GET_ENV_PTR_NO_MAP_LOCK;
708 if (!read_noiseparams(L, 1, &np))
710 v3s16 size = read_v3s16(L, 2);
712 int seed = (int)(env->getServerMap().getSeed());
713 LuaPerlinNoiseMap *n = new LuaPerlinNoiseMap(&np, seed, size);
714 *(void **)(lua_newuserdata(L, sizeof(void *))) = n;
715 luaL_getmetatable(L, "PerlinNoiseMap");
716 lua_setmetatable(L, -2);
721 // returns voxel manipulator
722 int ModApiEnvMod::l_get_voxel_manip(lua_State *L)
726 Map *map = &(env->getMap());
727 LuaVoxelManip *o = (lua_istable(L, 1) && lua_istable(L, 2)) ?
728 new LuaVoxelManip(map, read_v3s16(L, 1), read_v3s16(L, 2)) :
729 new LuaVoxelManip(map);
731 *(void **)(lua_newuserdata(L, sizeof(void *))) = o;
732 luaL_getmetatable(L, "VoxelManip");
733 lua_setmetatable(L, -2);
737 // clear_objects([options])
738 // clear all objects in the environment
739 // where options = {mode = "full" or "quick"}
740 int ModApiEnvMod::l_clear_objects(lua_State *L)
744 ClearObjectsMode mode = CLEAR_OBJECTS_MODE_FULL;
745 if (lua_istable(L, 1)) {
746 mode = (ClearObjectsMode)getenumfield(L, 1, "mode",
747 ModApiEnvMod::es_ClearObjectsMode, mode);
750 env->clearObjects(mode);
754 // line_of_sight(pos1, pos2, stepsize) -> true/false, pos
755 int ModApiEnvMod::l_line_of_sight(lua_State *L)
757 float stepsize = 1.0;
761 // read position 1 from lua
762 v3f pos1 = checkFloatPos(L, 1);
763 // read position 2 from lua
764 v3f pos2 = checkFloatPos(L, 2);
765 //read step size from lua
766 if (lua_isnumber(L, 3)) {
767 stepsize = lua_tonumber(L, 3);
771 bool success = env->line_of_sight(pos1, pos2, stepsize, &p);
772 lua_pushboolean(L, success);
780 // emerge_area(p1, p2, [callback, context])
781 // emerge mapblocks in area p1..p2, calls callback with context upon completion
782 int ModApiEnvMod::l_emerge_area(lua_State *L)
786 EmergeCompletionCallback callback = NULL;
787 ScriptCallbackState *state = NULL;
789 EmergeManager *emerge = getServer(L)->getEmergeManager();
791 v3s16 bpmin = getNodeBlockPos(read_v3s16(L, 1));
792 v3s16 bpmax = getNodeBlockPos(read_v3s16(L, 2));
793 sortBoxVerticies(bpmin, bpmax);
795 size_t num_blocks = VoxelArea(bpmin, bpmax).getVolume();
796 assert(num_blocks != 0);
798 if (lua_isfunction(L, 3)) {
799 callback = LuaEmergeAreaCallback;
802 int callback_ref = luaL_ref(L, LUA_REGISTRYINDEX);
805 int args_ref = luaL_ref(L, LUA_REGISTRYINDEX);
807 state = new ScriptCallbackState;
808 state->script = getServer(L)->getScriptIface();
809 state->callback_ref = callback_ref;
810 state->args_ref = args_ref;
811 state->refcount = num_blocks;
812 state->origin = getScriptApiBase(L)->getOrigin();
815 for (s16 z = bpmin.Z; z <= bpmax.Z; z++)
816 for (s16 y = bpmin.Y; y <= bpmax.Y; y++)
817 for (s16 x = bpmin.X; x <= bpmax.X; x++) {
818 emerge->enqueueBlockEmergeEx(v3s16(x, y, z), PEER_ID_INEXISTENT,
819 BLOCK_EMERGE_ALLOW_GEN | BLOCK_EMERGE_FORCE_QUEUE, callback, state);
825 // delete_area(p1, p2)
826 // delete mapblocks in area p1..p2
827 int ModApiEnvMod::l_delete_area(lua_State *L)
831 v3s16 bpmin = getNodeBlockPos(read_v3s16(L, 1));
832 v3s16 bpmax = getNodeBlockPos(read_v3s16(L, 2));
833 sortBoxVerticies(bpmin, bpmax);
835 ServerMap &map = env->getServerMap();
838 event.type = MEET_OTHER;
841 for (s16 z = bpmin.Z; z <= bpmax.Z; z++)
842 for (s16 y = bpmin.Y; y <= bpmax.Y; y++)
843 for (s16 x = bpmin.X; x <= bpmax.X; x++) {
845 if (map.deleteBlock(bp)) {
846 env->setStaticForActiveObjectsInBlock(bp, false);
847 event.modified_blocks.insert(bp);
853 map.dispatchEvent(&event);
854 lua_pushboolean(L, success);
858 // find_path(pos1, pos2, searchdistance,
859 // max_jump, max_drop, algorithm) -> table containing path
860 int ModApiEnvMod::l_find_path(lua_State *L)
864 v3s16 pos1 = read_v3s16(L, 1);
865 v3s16 pos2 = read_v3s16(L, 2);
866 unsigned int searchdistance = luaL_checkint(L, 3);
867 unsigned int max_jump = luaL_checkint(L, 4);
868 unsigned int max_drop = luaL_checkint(L, 5);
869 algorithm algo = A_PLAIN_NP;
870 if (!lua_isnil(L, 6)) {
871 std::string algorithm = luaL_checkstring(L,6);
873 if (algorithm == "A*")
876 if (algorithm == "Dijkstra")
880 std::vector<v3s16> path =
881 get_Path(env,pos1,pos2,searchdistance,max_jump,max_drop,algo);
886 int top = lua_gettop(L);
887 unsigned int index = 1;
888 for (std::vector<v3s16>::iterator i = path.begin(); i != path.end();i++)
890 lua_pushnumber(L,index);
892 lua_settable(L, top);
901 // spawn_tree(pos, treedef)
902 int ModApiEnvMod::l_spawn_tree(lua_State *L)
906 v3s16 p0 = read_v3s16(L, 1);
908 treegen::TreeDef tree_def;
909 std::string trunk,leaves,fruit;
910 INodeDefManager *ndef = env->getGameDef()->ndef();
912 if(lua_istable(L, 2))
914 getstringfield(L, 2, "axiom", tree_def.initial_axiom);
915 getstringfield(L, 2, "rules_a", tree_def.rules_a);
916 getstringfield(L, 2, "rules_b", tree_def.rules_b);
917 getstringfield(L, 2, "rules_c", tree_def.rules_c);
918 getstringfield(L, 2, "rules_d", tree_def.rules_d);
919 getstringfield(L, 2, "trunk", trunk);
920 tree_def.trunknode=ndef->getId(trunk);
921 getstringfield(L, 2, "leaves", leaves);
922 tree_def.leavesnode=ndef->getId(leaves);
923 tree_def.leaves2_chance=0;
924 getstringfield(L, 2, "leaves2", leaves);
927 tree_def.leaves2node=ndef->getId(leaves);
928 getintfield(L, 2, "leaves2_chance", tree_def.leaves2_chance);
930 getintfield(L, 2, "angle", tree_def.angle);
931 getintfield(L, 2, "iterations", tree_def.iterations);
932 if (!getintfield(L, 2, "random_level", tree_def.iterations_random_level))
933 tree_def.iterations_random_level = 0;
934 getstringfield(L, 2, "trunk_type", tree_def.trunk_type);
935 getboolfield(L, 2, "thin_branches", tree_def.thin_branches);
936 tree_def.fruit_chance=0;
937 getstringfield(L, 2, "fruit", fruit);
940 tree_def.fruitnode=ndef->getId(fruit);
941 getintfield(L, 2, "fruit_chance",tree_def.fruit_chance);
943 tree_def.explicit_seed = getintfield(L, 2, "seed", tree_def.seed);
949 if ((e = treegen::spawn_ltree (env, p0, ndef, tree_def)) != treegen::SUCCESS) {
950 if (e == treegen::UNBALANCED_BRACKETS) {
951 luaL_error(L, "spawn_tree(): closing ']' has no matching opening bracket");
953 luaL_error(L, "spawn_tree(): unknown error");
960 // transforming_liquid_add(pos)
961 int ModApiEnvMod::l_transforming_liquid_add(lua_State *L)
965 v3s16 p0 = read_v3s16(L, 1);
966 env->getMap().transforming_liquid_add(p0);
970 // forceload_block(blockpos)
971 // blockpos = {x=num, y=num, z=num}
972 int ModApiEnvMod::l_forceload_block(lua_State *L)
976 v3s16 blockpos = read_v3s16(L, 1);
977 env->getForceloadedBlocks()->insert(blockpos);
981 // forceload_free_block(blockpos)
982 // blockpos = {x=num, y=num, z=num}
983 int ModApiEnvMod::l_forceload_free_block(lua_State *L)
987 v3s16 blockpos = read_v3s16(L, 1);
988 env->getForceloadedBlocks()->erase(blockpos);
992 void ModApiEnvMod::Initialize(lua_State *L, int top)
998 API_FCT(remove_node);
1000 API_FCT(get_node_or_nil);
1001 API_FCT(get_node_light);
1002 API_FCT(place_node);
1004 API_FCT(punch_node);
1005 API_FCT(get_node_max_level);
1006 API_FCT(get_node_level);
1007 API_FCT(set_node_level);
1008 API_FCT(add_node_level);
1009 API_FCT(add_entity);
1010 API_FCT(find_nodes_with_meta);
1012 API_FCT(get_node_timer);
1013 API_FCT(get_player_by_name);
1014 API_FCT(get_objects_inside_radius);
1015 API_FCT(set_timeofday);
1016 API_FCT(get_timeofday);
1017 API_FCT(get_gametime);
1018 API_FCT(find_node_near);
1019 API_FCT(find_nodes_in_area);
1020 API_FCT(find_nodes_in_area_under_air);
1021 API_FCT(emerge_area);
1022 API_FCT(delete_area);
1023 API_FCT(get_perlin);
1024 API_FCT(get_perlin_map);
1025 API_FCT(get_voxel_manip);
1026 API_FCT(clear_objects);
1027 API_FCT(spawn_tree);
1029 API_FCT(line_of_sight);
1030 API_FCT(transforming_liquid_add);
1031 API_FCT(forceload_block);
1032 API_FCT(forceload_free_block);