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_server.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 ServerScripting *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 LuaLBM::trigger(ServerEnvironment *env, v3s16 p, MapNode n)
95 ServerScripting *scriptIface = env->getScriptIface();
96 scriptIface->realityCheck();
98 lua_State *L = scriptIface->getStack();
99 sanity_check(lua_checkstack(L, 20));
100 StackUnroller stack_unroller(L);
102 int error_handler = PUSH_ERROR_HANDLER(L);
104 // Get registered_lbms
105 lua_getglobal(L, "core");
106 lua_getfield(L, -1, "registered_lbms");
107 luaL_checktype(L, -1, LUA_TTABLE);
108 lua_remove(L, -2); // Remove core
110 // Get registered_lbms[m_id]
111 lua_pushnumber(L, m_id);
113 FATAL_ERROR_IF(lua_isnil(L, -1), "Entry with given id not found in registered_lbms table");
114 lua_remove(L, -2); // Remove registered_lbms
116 scriptIface->setOriginFromTable(-1);
119 luaL_checktype(L, -1, LUA_TTABLE);
120 lua_getfield(L, -1, "action");
121 luaL_checktype(L, -1, LUA_TFUNCTION);
122 lua_remove(L, -2); // Remove registered_lbms[m_id]
124 pushnode(L, n, env->getGameDef()->ndef());
126 int result = lua_pcall(L, 2, 0, error_handler);
128 scriptIface->scriptError(result, "LuaLBM::trigger");
130 lua_pop(L, 1); // Pop error handler
133 void LuaEmergeAreaCallback(v3s16 blockpos, EmergeAction action, void *param)
135 ScriptCallbackState *state = (ScriptCallbackState *)param;
136 assert(state != NULL);
137 assert(state->script != NULL);
138 assert(state->refcount > 0);
140 // state must be protected by envlock
141 Server *server = state->script->getServer();
142 MutexAutoLock envlock(server->m_env_mutex);
146 state->script->on_emerge_area_completion(blockpos, action, state);
148 if (state->refcount == 0)
152 // Exported functions
154 // set_node(pos, node)
155 // pos = {x=num, y=num, z=num}
156 int ModApiEnvMod::l_set_node(lua_State *L)
160 INodeDefManager *ndef = env->getGameDef()->ndef();
162 v3s16 pos = read_v3s16(L, 1);
163 MapNode n = readnode(L, 2, ndef);
165 bool succeeded = env->setNode(pos, n);
166 lua_pushboolean(L, succeeded);
170 int ModApiEnvMod::l_add_node(lua_State *L)
172 return l_set_node(L);
176 // pos = {x=num, y=num, z=num}
177 int ModApiEnvMod::l_remove_node(lua_State *L)
182 v3s16 pos = read_v3s16(L, 1);
184 bool succeeded = env->removeNode(pos);
185 lua_pushboolean(L, succeeded);
189 // swap_node(pos, node)
190 // pos = {x=num, y=num, z=num}
191 int ModApiEnvMod::l_swap_node(lua_State *L)
195 INodeDefManager *ndef = env->getGameDef()->ndef();
197 v3s16 pos = read_v3s16(L, 1);
198 MapNode n = readnode(L, 2, ndef);
200 bool succeeded = env->swapNode(pos, n);
201 lua_pushboolean(L, succeeded);
206 // pos = {x=num, y=num, z=num}
207 int ModApiEnvMod::l_get_node(lua_State *L)
212 v3s16 pos = read_v3s16(L, 1);
214 MapNode n = env->getMap().getNodeNoEx(pos);
216 pushnode(L, n, env->getGameDef()->ndef());
220 // get_node_or_nil(pos)
221 // pos = {x=num, y=num, z=num}
222 int ModApiEnvMod::l_get_node_or_nil(lua_State *L)
227 v3s16 pos = read_v3s16(L, 1);
230 MapNode n = env->getMap().getNodeNoEx(pos, &pos_ok);
233 pushnode(L, n, env->getGameDef()->ndef());
240 // get_node_light(pos, timeofday)
241 // pos = {x=num, y=num, z=num}
242 // timeofday: nil = current time, 0 = night, 0.5 = day
243 int ModApiEnvMod::l_get_node_light(lua_State *L)
248 v3s16 pos = read_v3s16(L, 1);
249 u32 time_of_day = env->getTimeOfDay();
250 if(lua_isnumber(L, 2))
251 time_of_day = 24000.0 * lua_tonumber(L, 2);
252 time_of_day %= 24000;
253 u32 dnr = time_to_daynight_ratio(time_of_day, true);
256 MapNode n = env->getMap().getNodeNoEx(pos, &is_position_ok);
257 if (is_position_ok) {
258 INodeDefManager *ndef = env->getGameDef()->ndef();
259 lua_pushinteger(L, n.getLightBlend(dnr, ndef));
266 // place_node(pos, node)
267 // pos = {x=num, y=num, z=num}
268 int ModApiEnvMod::l_place_node(lua_State *L)
272 ScriptApiItem *scriptIfaceItem = getScriptApi<ScriptApiItem>(L);
273 Server *server = getServer(L);
274 INodeDefManager *ndef = server->ndef();
275 IItemDefManager *idef = server->idef();
277 v3s16 pos = read_v3s16(L, 1);
278 MapNode n = readnode(L, 2, ndef);
280 // Don't attempt to load non-loaded area as of now
281 MapNode n_old = env->getMap().getNodeNoEx(pos);
282 if(n_old.getContent() == CONTENT_IGNORE){
283 lua_pushboolean(L, false);
286 // Create item to place
287 ItemStack item(ndef->get(n).name, 1, 0, idef);
288 // Make pointed position
289 PointedThing pointed;
290 pointed.type = POINTEDTHING_NODE;
291 pointed.node_abovesurface = pos;
292 pointed.node_undersurface = pos + v3s16(0,-1,0);
293 // Place it with a NULL placer (appears in Lua as a non-functional
295 bool success = scriptIfaceItem->item_OnPlace(item, NULL, pointed);
296 lua_pushboolean(L, success);
301 // pos = {x=num, y=num, z=num}
302 int ModApiEnvMod::l_dig_node(lua_State *L)
306 ScriptApiNode *scriptIfaceNode = getScriptApi<ScriptApiNode>(L);
308 v3s16 pos = read_v3s16(L, 1);
310 // Don't attempt to load non-loaded area as of now
311 MapNode n = env->getMap().getNodeNoEx(pos);
312 if(n.getContent() == CONTENT_IGNORE){
313 lua_pushboolean(L, false);
316 // Dig it out with a NULL digger (appears in Lua as a
317 // non-functional ObjectRef)
318 bool success = scriptIfaceNode->node_on_dig(pos, n, NULL);
319 lua_pushboolean(L, success);
324 // pos = {x=num, y=num, z=num}
325 int ModApiEnvMod::l_punch_node(lua_State *L)
329 ScriptApiNode *scriptIfaceNode = getScriptApi<ScriptApiNode>(L);
331 v3s16 pos = read_v3s16(L, 1);
333 // Don't attempt to load non-loaded area as of now
334 MapNode n = env->getMap().getNodeNoEx(pos);
335 if(n.getContent() == CONTENT_IGNORE){
336 lua_pushboolean(L, false);
339 // Punch it with a NULL puncher (appears in Lua as a non-functional
341 bool success = scriptIfaceNode->node_on_punch(pos, n, NULL, PointedThing());
342 lua_pushboolean(L, success);
346 // get_node_max_level(pos)
347 // pos = {x=num, y=num, z=num}
348 int ModApiEnvMod::l_get_node_max_level(lua_State *L)
350 Environment *env = getEnv(L);
355 v3s16 pos = read_v3s16(L, 1);
356 MapNode n = env->getMap().getNodeNoEx(pos);
357 lua_pushnumber(L, n.getMaxLevel(env->getGameDef()->ndef()));
361 // get_node_level(pos)
362 // pos = {x=num, y=num, z=num}
363 int ModApiEnvMod::l_get_node_level(lua_State *L)
365 Environment *env = getEnv(L);
370 v3s16 pos = read_v3s16(L, 1);
371 MapNode n = env->getMap().getNodeNoEx(pos);
372 lua_pushnumber(L, n.getLevel(env->getGameDef()->ndef()));
376 // set_node_level(pos, level)
377 // pos = {x=num, y=num, z=num}
379 int ModApiEnvMod::l_set_node_level(lua_State *L)
383 v3s16 pos = read_v3s16(L, 1);
385 if(lua_isnumber(L, 2))
386 level = lua_tonumber(L, 2);
387 MapNode n = env->getMap().getNodeNoEx(pos);
388 lua_pushnumber(L, n.setLevel(env->getGameDef()->ndef(), level));
389 env->setNode(pos, n);
393 // add_node_level(pos, level)
394 // pos = {x=num, y=num, z=num}
396 int ModApiEnvMod::l_add_node_level(lua_State *L)
400 v3s16 pos = read_v3s16(L, 1);
402 if(lua_isnumber(L, 2))
403 level = lua_tonumber(L, 2);
404 MapNode n = env->getMap().getNodeNoEx(pos);
405 lua_pushnumber(L, n.addLevel(env->getGameDef()->ndef(), level));
406 env->setNode(pos, n);
410 // find_nodes_with_meta(pos1, pos2)
411 int ModApiEnvMod::l_find_nodes_with_meta(lua_State *L)
415 std::vector<v3s16> positions = env->getMap().findNodesWithMetadata(
416 check_v3s16(L, 1), check_v3s16(L, 2));
419 for (size_t i = 0; i != positions.size(); i++) {
420 push_v3s16(L, positions[i]);
421 lua_rawseti(L, -2, i + 1);
428 int ModApiEnvMod::l_get_meta(lua_State *L)
433 v3s16 p = read_v3s16(L, 1);
434 NodeMetaRef::create(L, p, env);
438 // get_node_timer(pos)
439 int ModApiEnvMod::l_get_node_timer(lua_State *L)
444 v3s16 p = read_v3s16(L, 1);
445 NodeTimerRef::create(L, p, env);
449 // add_entity(pos, entityname, [staticdata]) -> ObjectRef or nil
450 // pos = {x=num, y=num, z=num}
451 int ModApiEnvMod::l_add_entity(lua_State *L)
456 v3f pos = checkFloatPos(L, 1);
458 const char *name = luaL_checkstring(L, 2);
460 const char *staticdata = luaL_optstring(L, 3, "");
462 ServerActiveObject *obj = new LuaEntitySAO(env, pos, name, staticdata);
463 int objectid = env->addActiveObject(obj);
464 // If failed to add, return nothing (reads as nil)
468 getScriptApiBase(L)->objectrefGetOrCreate(L, obj);
472 // add_item(pos, itemstack or itemstring or table) -> ObjectRef or nil
473 // pos = {x=num, y=num, z=num}
474 int ModApiEnvMod::l_add_item(lua_State *L)
479 //v3f pos = checkFloatPos(L, 1);
481 ItemStack item = read_item(L, 2,getServer(L)->idef());
482 if(item.empty() || !item.isKnown(getServer(L)->idef()))
485 int error_handler = PUSH_ERROR_HANDLER(L);
487 // Use spawn_item to spawn a __builtin:item
488 lua_getglobal(L, "core");
489 lua_getfield(L, -1, "spawn_item");
490 lua_remove(L, -2); // Remove core
494 lua_pushstring(L, item.getItemString().c_str());
496 PCALL_RESL(L, lua_pcall(L, 2, 1, error_handler));
498 lua_remove(L, error_handler);
502 // get_player_by_name(name)
503 int ModApiEnvMod::l_get_player_by_name(lua_State *L)
508 const char *name = luaL_checkstring(L, 1);
509 RemotePlayer *player = dynamic_cast<RemotePlayer *>(env->getPlayer(name));
514 PlayerSAO *sao = player->getPlayerSAO();
519 // Put player on stack
520 getScriptApiBase(L)->objectrefGetOrCreate(L, sao);
524 // get_objects_inside_radius(pos, radius)
525 int ModApiEnvMod::l_get_objects_inside_radius(lua_State *L)
530 v3f pos = checkFloatPos(L, 1);
531 float radius = luaL_checknumber(L, 2) * BS;
532 std::vector<u16> ids;
533 env->getObjectsInsideRadius(ids, pos, radius);
534 ScriptApiBase *script = getScriptApiBase(L);
535 lua_createtable(L, ids.size(), 0);
536 std::vector<u16>::const_iterator iter = ids.begin();
537 for(u32 i = 0; iter != ids.end(); ++iter) {
538 ServerActiveObject *obj = env->getActiveObject(*iter);
539 // Insert object reference into table
540 script->objectrefGetOrCreate(L, obj);
541 lua_rawseti(L, -2, ++i);
546 // set_timeofday(val)
548 int ModApiEnvMod::l_set_timeofday(lua_State *L)
553 float timeofday_f = luaL_checknumber(L, 1);
554 sanity_check(timeofday_f >= 0.0 && timeofday_f <= 1.0);
555 int timeofday_mh = (int)(timeofday_f * 24000.0);
556 // This should be set directly in the environment but currently
557 // such changes aren't immediately sent to the clients, so call
558 // the server instead.
559 //env->setTimeOfDay(timeofday_mh);
560 getServer(L)->setTimeOfDay(timeofday_mh);
564 // get_timeofday() -> 0...1
565 int ModApiEnvMod::l_get_timeofday(lua_State *L)
567 Environment *env = getEnv(L);
573 int timeofday_mh = env->getTimeOfDay();
574 float timeofday_f = (float)timeofday_mh / 24000.0f;
575 lua_pushnumber(L, timeofday_f);
579 // get_day_count() -> int
580 int ModApiEnvMod::l_get_day_count(lua_State *L)
582 Environment *env = getEnv(L);
587 lua_pushnumber(L, env->getDayCount());
592 int ModApiEnvMod::l_get_gametime(lua_State *L)
596 int game_time = env->getGameTime();
597 lua_pushnumber(L, game_time);
602 // find_node_near(pos, radius, nodenames) -> pos or nil
603 // nodenames: eg. {"ignore", "group:tree"} or "default:dirt"
604 int ModApiEnvMod::l_find_node_near(lua_State *L)
606 Environment *env = getEnv(L);
611 INodeDefManager *ndef = getGameDef(L)->ndef();
612 v3s16 pos = read_v3s16(L, 1);
613 int radius = luaL_checkinteger(L, 2);
614 std::set<content_t> filter;
615 if(lua_istable(L, 3)){
618 while(lua_next(L, table) != 0){
619 // key at index -2 and value at index -1
620 luaL_checktype(L, -1, LUA_TSTRING);
621 ndef->getIds(lua_tostring(L, -1), filter);
622 // removes value, keeps key for next iteration
625 } else if(lua_isstring(L, 3)){
626 ndef->getIds(lua_tostring(L, 3), filter);
629 for (int d=1; d<=radius; d++){
630 std::vector<v3s16> list = FacePositionCache::getFacePositions(d);
631 for (std::vector<v3s16>::iterator i = list.begin();
632 i != list.end(); ++i){
633 v3s16 p = pos + (*i);
634 content_t c = env->getMap().getNodeNoEx(p).getContent();
635 if (filter.count(c) != 0){
644 // find_nodes_in_area(minp, maxp, nodenames) -> list of positions
645 // nodenames: eg. {"ignore", "group:tree"} or "default:dirt"
646 int ModApiEnvMod::l_find_nodes_in_area(lua_State *L)
650 INodeDefManager *ndef = getServer(L)->ndef();
651 v3s16 minp = read_v3s16(L, 1);
652 v3s16 maxp = read_v3s16(L, 2);
653 std::set<content_t> filter;
654 if(lua_istable(L, 3)) {
657 while(lua_next(L, table) != 0) {
658 // key at index -2 and value at index -1
659 luaL_checktype(L, -1, LUA_TSTRING);
660 ndef->getIds(lua_tostring(L, -1), filter);
661 // removes value, keeps key for next iteration
664 } else if(lua_isstring(L, 3)) {
665 ndef->getIds(lua_tostring(L, 3), filter);
668 std::map<content_t, u16> individual_count;
672 for (s16 x = minp.X; x <= maxp.X; x++)
673 for (s16 y = minp.Y; y <= maxp.Y; y++)
674 for (s16 z = minp.Z; z <= maxp.Z; z++) {
676 content_t c = env->getMap().getNodeNoEx(p).getContent();
677 if (filter.count(c) != 0) {
679 lua_rawseti(L, -2, ++i);
680 individual_count[c]++;
684 for (std::set<content_t>::iterator it = filter.begin();
685 it != filter.end(); ++it) {
686 lua_pushnumber(L, individual_count[*it]);
687 lua_setfield(L, -2, ndef->get(*it).name.c_str());
692 // find_nodes_in_area_under_air(minp, maxp, nodenames) -> list of positions
693 // nodenames: e.g. {"ignore", "group:tree"} or "default:dirt"
694 int ModApiEnvMod::l_find_nodes_in_area_under_air(lua_State *L)
696 /* Note: A similar but generalized (and therefore slower) version of this
697 * function could be created -- e.g. find_nodes_in_area_under -- which
698 * would accept a node name (or ID?) or list of names that the "above node"
705 INodeDefManager *ndef = getServer(L)->ndef();
706 v3s16 minp = read_v3s16(L, 1);
707 v3s16 maxp = read_v3s16(L, 2);
708 std::set<content_t> filter;
710 if (lua_istable(L, 3)) {
713 while(lua_next(L, table) != 0) {
714 // key at index -2 and value at index -1
715 luaL_checktype(L, -1, LUA_TSTRING);
716 ndef->getIds(lua_tostring(L, -1), filter);
717 // removes value, keeps key for next iteration
720 } else if (lua_isstring(L, 3)) {
721 ndef->getIds(lua_tostring(L, 3), filter);
726 for (s16 x = minp.X; x <= maxp.X; x++)
727 for (s16 z = minp.Z; z <= maxp.Z; z++) {
730 content_t c = env->getMap().getNodeNoEx(p).getContent();
731 for (; y <= maxp.Y; y++) {
732 v3s16 psurf(x, y + 1, z);
733 content_t csurf = env->getMap().getNodeNoEx(psurf).getContent();
734 if(c != CONTENT_AIR && csurf == CONTENT_AIR &&
735 filter.count(c) != 0) {
736 push_v3s16(L, v3s16(x, y, z));
737 lua_rawseti(L, -2, ++i);
745 // get_perlin(seeddiff, octaves, persistence, scale)
746 // returns world-specific PerlinNoise
747 int ModApiEnvMod::l_get_perlin(lua_State *L)
749 GET_ENV_PTR_NO_MAP_LOCK;
753 if (lua_istable(L, 1)) {
754 read_noiseparams(L, 1, ¶ms);
756 params.seed = luaL_checkint(L, 1);
757 params.octaves = luaL_checkint(L, 2);
758 params.persist = luaL_checknumber(L, 3);
759 params.spread = v3f(1, 1, 1) * luaL_checknumber(L, 4);
762 params.seed += (int)env->getServerMap().getSeed();
764 LuaPerlinNoise *n = new LuaPerlinNoise(¶ms);
765 *(void **)(lua_newuserdata(L, sizeof(void *))) = n;
766 luaL_getmetatable(L, "PerlinNoise");
767 lua_setmetatable(L, -2);
771 // get_perlin_map(noiseparams, size)
772 // returns world-specific PerlinNoiseMap
773 int ModApiEnvMod::l_get_perlin_map(lua_State *L)
775 GET_ENV_PTR_NO_MAP_LOCK;
778 if (!read_noiseparams(L, 1, &np))
780 v3s16 size = read_v3s16(L, 2);
782 s32 seed = (s32)(env->getServerMap().getSeed());
783 LuaPerlinNoiseMap *n = new LuaPerlinNoiseMap(&np, seed, size);
784 *(void **)(lua_newuserdata(L, sizeof(void *))) = n;
785 luaL_getmetatable(L, "PerlinNoiseMap");
786 lua_setmetatable(L, -2);
791 // returns voxel manipulator
792 int ModApiEnvMod::l_get_voxel_manip(lua_State *L)
796 Map *map = &(env->getMap());
797 LuaVoxelManip *o = (lua_istable(L, 1) && lua_istable(L, 2)) ?
798 new LuaVoxelManip(map, read_v3s16(L, 1), read_v3s16(L, 2)) :
799 new LuaVoxelManip(map);
801 *(void **)(lua_newuserdata(L, sizeof(void *))) = o;
802 luaL_getmetatable(L, "VoxelManip");
803 lua_setmetatable(L, -2);
807 // clear_objects([options])
808 // clear all objects in the environment
809 // where options = {mode = "full" or "quick"}
810 int ModApiEnvMod::l_clear_objects(lua_State *L)
814 ClearObjectsMode mode = CLEAR_OBJECTS_MODE_FULL;
815 if (lua_istable(L, 1)) {
816 mode = (ClearObjectsMode)getenumfield(L, 1, "mode",
817 ModApiEnvMod::es_ClearObjectsMode, mode);
820 env->clearObjects(mode);
824 // line_of_sight(pos1, pos2, stepsize) -> true/false, pos
825 int ModApiEnvMod::l_line_of_sight(lua_State *L)
827 float stepsize = 1.0;
831 // read position 1 from lua
832 v3f pos1 = checkFloatPos(L, 1);
833 // read position 2 from lua
834 v3f pos2 = checkFloatPos(L, 2);
835 //read step size from lua
836 if (lua_isnumber(L, 3)) {
837 stepsize = lua_tonumber(L, 3);
841 bool success = env->line_of_sight(pos1, pos2, stepsize, &p);
842 lua_pushboolean(L, success);
851 int ModApiEnvMod::l_fix_light(lua_State *L)
855 v3s16 blockpos1 = getContainerPos(read_v3s16(L, 1), MAP_BLOCKSIZE);
856 v3s16 blockpos2 = getContainerPos(read_v3s16(L, 2), MAP_BLOCKSIZE);
857 ServerMap &map = env->getServerMap();
858 std::map<v3s16, MapBlock *> modified_blocks;
861 for (blockpos.X = blockpos1.X; blockpos.X <= blockpos2.X; blockpos.X++)
862 for (blockpos.Y = blockpos1.Y; blockpos.Y <= blockpos2.Y; blockpos.Y++)
863 for (blockpos.Z = blockpos1.Z; blockpos.Z <= blockpos2.Z; blockpos.Z++) {
864 success = success & map.repairBlockLight(blockpos, &modified_blocks);
866 if (modified_blocks.size() > 0) {
868 event.type = MEET_OTHER;
869 for (std::map<v3s16, MapBlock *>::iterator it = modified_blocks.begin();
870 it != modified_blocks.end(); ++it)
871 event.modified_blocks.insert(it->first);
873 map.dispatchEvent(&event);
875 lua_pushboolean(L, success);
880 // emerge_area(p1, p2, [callback, context])
881 // emerge mapblocks in area p1..p2, calls callback with context upon completion
882 int ModApiEnvMod::l_emerge_area(lua_State *L)
886 EmergeCompletionCallback callback = NULL;
887 ScriptCallbackState *state = NULL;
889 EmergeManager *emerge = getServer(L)->getEmergeManager();
891 v3s16 bpmin = getNodeBlockPos(read_v3s16(L, 1));
892 v3s16 bpmax = getNodeBlockPos(read_v3s16(L, 2));
893 sortBoxVerticies(bpmin, bpmax);
895 size_t num_blocks = VoxelArea(bpmin, bpmax).getVolume();
896 assert(num_blocks != 0);
898 if (lua_isfunction(L, 3)) {
899 callback = LuaEmergeAreaCallback;
902 int callback_ref = luaL_ref(L, LUA_REGISTRYINDEX);
905 int args_ref = luaL_ref(L, LUA_REGISTRYINDEX);
907 state = new ScriptCallbackState;
908 state->script = getServer(L)->getScriptIface();
909 state->callback_ref = callback_ref;
910 state->args_ref = args_ref;
911 state->refcount = num_blocks;
912 state->origin = getScriptApiBase(L)->getOrigin();
915 for (s16 z = bpmin.Z; z <= bpmax.Z; z++)
916 for (s16 y = bpmin.Y; y <= bpmax.Y; y++)
917 for (s16 x = bpmin.X; x <= bpmax.X; x++) {
918 emerge->enqueueBlockEmergeEx(v3s16(x, y, z), PEER_ID_INEXISTENT,
919 BLOCK_EMERGE_ALLOW_GEN | BLOCK_EMERGE_FORCE_QUEUE, callback, state);
925 // delete_area(p1, p2)
926 // delete mapblocks in area p1..p2
927 int ModApiEnvMod::l_delete_area(lua_State *L)
931 v3s16 bpmin = getNodeBlockPos(read_v3s16(L, 1));
932 v3s16 bpmax = getNodeBlockPos(read_v3s16(L, 2));
933 sortBoxVerticies(bpmin, bpmax);
935 ServerMap &map = env->getServerMap();
938 event.type = MEET_OTHER;
941 for (s16 z = bpmin.Z; z <= bpmax.Z; z++)
942 for (s16 y = bpmin.Y; y <= bpmax.Y; y++)
943 for (s16 x = bpmin.X; x <= bpmax.X; x++) {
945 if (map.deleteBlock(bp)) {
946 env->setStaticForActiveObjectsInBlock(bp, false);
947 event.modified_blocks.insert(bp);
953 map.dispatchEvent(&event);
954 lua_pushboolean(L, success);
958 // find_path(pos1, pos2, searchdistance,
959 // max_jump, max_drop, algorithm) -> table containing path
960 int ModApiEnvMod::l_find_path(lua_State *L)
964 v3s16 pos1 = read_v3s16(L, 1);
965 v3s16 pos2 = read_v3s16(L, 2);
966 unsigned int searchdistance = luaL_checkint(L, 3);
967 unsigned int max_jump = luaL_checkint(L, 4);
968 unsigned int max_drop = luaL_checkint(L, 5);
969 PathAlgorithm algo = PA_PLAIN_NP;
970 if (!lua_isnil(L, 6)) {
971 std::string algorithm = luaL_checkstring(L,6);
973 if (algorithm == "A*")
976 if (algorithm == "Dijkstra")
980 std::vector<v3s16> path = get_path(env, pos1, pos2,
981 searchdistance, max_jump, max_drop, algo);
986 int top = lua_gettop(L);
987 unsigned int index = 1;
988 for (std::vector<v3s16>::iterator i = path.begin(); i != path.end(); ++i) {
989 lua_pushnumber(L,index);
991 lua_settable(L, top);
1000 // spawn_tree(pos, treedef)
1001 int ModApiEnvMod::l_spawn_tree(lua_State *L)
1005 v3s16 p0 = read_v3s16(L, 1);
1007 treegen::TreeDef tree_def;
1008 std::string trunk,leaves,fruit;
1009 INodeDefManager *ndef = env->getGameDef()->ndef();
1011 if(lua_istable(L, 2))
1013 getstringfield(L, 2, "axiom", tree_def.initial_axiom);
1014 getstringfield(L, 2, "rules_a", tree_def.rules_a);
1015 getstringfield(L, 2, "rules_b", tree_def.rules_b);
1016 getstringfield(L, 2, "rules_c", tree_def.rules_c);
1017 getstringfield(L, 2, "rules_d", tree_def.rules_d);
1018 getstringfield(L, 2, "trunk", trunk);
1019 tree_def.trunknode=ndef->getId(trunk);
1020 getstringfield(L, 2, "leaves", leaves);
1021 tree_def.leavesnode=ndef->getId(leaves);
1022 tree_def.leaves2_chance=0;
1023 getstringfield(L, 2, "leaves2", leaves);
1026 tree_def.leaves2node=ndef->getId(leaves);
1027 getintfield(L, 2, "leaves2_chance", tree_def.leaves2_chance);
1029 getintfield(L, 2, "angle", tree_def.angle);
1030 getintfield(L, 2, "iterations", tree_def.iterations);
1031 if (!getintfield(L, 2, "random_level", tree_def.iterations_random_level))
1032 tree_def.iterations_random_level = 0;
1033 getstringfield(L, 2, "trunk_type", tree_def.trunk_type);
1034 getboolfield(L, 2, "thin_branches", tree_def.thin_branches);
1035 tree_def.fruit_chance=0;
1036 getstringfield(L, 2, "fruit", fruit);
1039 tree_def.fruitnode=ndef->getId(fruit);
1040 getintfield(L, 2, "fruit_chance",tree_def.fruit_chance);
1042 tree_def.explicit_seed = getintfield(L, 2, "seed", tree_def.seed);
1048 if ((e = treegen::spawn_ltree (env, p0, ndef, tree_def)) != treegen::SUCCESS) {
1049 if (e == treegen::UNBALANCED_BRACKETS) {
1050 luaL_error(L, "spawn_tree(): closing ']' has no matching opening bracket");
1052 luaL_error(L, "spawn_tree(): unknown error");
1059 // transforming_liquid_add(pos)
1060 int ModApiEnvMod::l_transforming_liquid_add(lua_State *L)
1064 v3s16 p0 = read_v3s16(L, 1);
1065 env->getMap().transforming_liquid_add(p0);
1069 // forceload_block(blockpos)
1070 // blockpos = {x=num, y=num, z=num}
1071 int ModApiEnvMod::l_forceload_block(lua_State *L)
1075 v3s16 blockpos = read_v3s16(L, 1);
1076 env->getForceloadedBlocks()->insert(blockpos);
1080 // forceload_free_block(blockpos)
1081 // blockpos = {x=num, y=num, z=num}
1082 int ModApiEnvMod::l_forceload_free_block(lua_State *L)
1086 v3s16 blockpos = read_v3s16(L, 1);
1087 env->getForceloadedBlocks()->erase(blockpos);
1091 void ModApiEnvMod::Initialize(lua_State *L, int top)
1097 API_FCT(remove_node);
1099 API_FCT(get_node_or_nil);
1100 API_FCT(get_node_light);
1101 API_FCT(place_node);
1103 API_FCT(punch_node);
1104 API_FCT(get_node_max_level);
1105 API_FCT(get_node_level);
1106 API_FCT(set_node_level);
1107 API_FCT(add_node_level);
1108 API_FCT(add_entity);
1109 API_FCT(find_nodes_with_meta);
1111 API_FCT(get_node_timer);
1112 API_FCT(get_player_by_name);
1113 API_FCT(get_objects_inside_radius);
1114 API_FCT(set_timeofday);
1115 API_FCT(get_timeofday);
1116 API_FCT(get_gametime);
1117 API_FCT(get_day_count);
1118 API_FCT(find_node_near);
1119 API_FCT(find_nodes_in_area);
1120 API_FCT(find_nodes_in_area_under_air);
1122 API_FCT(emerge_area);
1123 API_FCT(delete_area);
1124 API_FCT(get_perlin);
1125 API_FCT(get_perlin_map);
1126 API_FCT(get_voxel_manip);
1127 API_FCT(clear_objects);
1128 API_FCT(spawn_tree);
1130 API_FCT(line_of_sight);
1131 API_FCT(transforming_liquid_add);
1132 API_FCT(forceload_block);
1133 API_FCT(forceload_free_block);
1136 void ModApiEnvMod::InitializeClient(lua_State *L, int top)
1138 API_FCT(get_timeofday);
1139 API_FCT(get_day_count);
1140 API_FCT(get_node_max_level);
1141 API_FCT(get_node_level);
1142 API_FCT(find_node_near);