3 Copyright (C) 2013 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
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.
21 #include "lua_api/l_vmanip.h"
22 #include "lua_api/l_internal.h"
23 #include "common/c_converter.h"
25 #include "environment.h"
31 int LuaVoxelManip::gc_object(lua_State *L)
33 LuaVoxelManip *o = *(LuaVoxelManip **)(lua_touserdata(L, 1));
40 int LuaVoxelManip::l_read_from_map(lua_State *L)
42 LuaVoxelManip *o = checkobject(L, 1);
43 ManualMapVoxelManipulator *vm = o->vm;
45 v3s16 bp1 = getNodeBlockPos(read_v3s16(L, 2));
46 v3s16 bp2 = getNodeBlockPos(read_v3s16(L, 3));
47 sortBoxVerticies(bp1, bp2);
49 vm->initialEmerge(bp1, bp2);
51 push_v3s16(L, vm->m_area.MinEdge);
52 push_v3s16(L, vm->m_area.MaxEdge);
57 int LuaVoxelManip::l_get_data(lua_State *L)
61 LuaVoxelManip *o = checkobject(L, 1);
62 ManualMapVoxelManipulator *vm = o->vm;
64 int volume = vm->m_area.getVolume();
67 for (int i = 0; i != volume; i++) {
68 lua_Integer cid = vm->m_data[i].getContent();
69 lua_pushinteger(L, cid);
70 lua_rawseti(L, -2, i + 1);
76 int LuaVoxelManip::l_set_data(lua_State *L)
80 LuaVoxelManip *o = checkobject(L, 1);
81 ManualMapVoxelManipulator *vm = o->vm;
83 if (!lua_istable(L, 2))
86 int volume = vm->m_area.getVolume();
87 for (int i = 0; i != volume; i++) {
88 lua_rawgeti(L, 2, i + 1);
89 content_t c = lua_tointeger(L, -1);
91 vm->m_data[i].setContent(c);
99 int LuaVoxelManip::l_write_to_map(lua_State *L)
101 LuaVoxelManip *o = checkobject(L, 1);
102 ManualMapVoxelManipulator *vm = o->vm;
104 vm->blitBackAll(&o->modified_blocks);
109 int LuaVoxelManip::l_update_liquids(lua_State *L)
111 LuaVoxelManip *o = checkobject(L, 1);
113 Environment *env = getEnv(L);
117 Map *map = &(env->getMap());
118 INodeDefManager *ndef = getServer(L)->getNodeDefManager();
119 ManualMapVoxelManipulator *vm = o->vm;
125 mg.updateLiquid(&map->m_transforming_liquid,
126 vm->m_area.MinEdge, vm->m_area.MaxEdge);
131 int LuaVoxelManip::l_calc_lighting(lua_State *L)
133 NO_MAP_LOCK_REQUIRED;
135 LuaVoxelManip *o = checkobject(L, 1);
136 if (!o->is_mapgen_vm)
139 INodeDefManager *ndef = getServer(L)->getNodeDefManager();
140 EmergeManager *emerge = getServer(L)->getEmergeManager();
141 ManualMapVoxelManipulator *vm = o->vm;
146 mg.water_level = emerge->params->water_level;
148 mg.calcLighting(vm->m_area.MinEdge + v3s16(0, 1, 0) * MAP_BLOCKSIZE,
149 vm->m_area.MaxEdge - v3s16(0, 1, 0) * MAP_BLOCKSIZE);
154 int LuaVoxelManip::l_set_lighting(lua_State *L)
156 NO_MAP_LOCK_REQUIRED;
158 LuaVoxelManip *o = checkobject(L, 1);
159 if (!o->is_mapgen_vm)
162 if (!lua_istable(L, 2))
166 light = (getintfield_default(L, 2, "day", 0) & 0x0F);
167 light |= (getintfield_default(L, 2, "night", 0) & 0x0F) << 8;
169 ManualMapVoxelManipulator *vm = o->vm;
174 mg.setLighting(vm->m_area.MinEdge + v3s16(0, 1, 0) * MAP_BLOCKSIZE,
175 vm->m_area.MaxEdge - v3s16(0, 1, 0) * MAP_BLOCKSIZE,
181 int LuaVoxelManip::l_update_map(lua_State *L)
183 LuaVoxelManip *o = checkobject(L, 1);
187 Environment *env = getEnv(L);
191 Map *map = &(env->getMap());
193 // TODO: Optimize this by using Mapgen::calcLighting() instead
194 std::map<v3s16, MapBlock *> lighting_mblocks;
195 std::map<v3s16, MapBlock *> *mblocks = &o->modified_blocks;
197 lighting_mblocks.insert(mblocks->begin(), mblocks->end());
199 map->updateLighting(lighting_mblocks, *mblocks);
202 event.type = MEET_OTHER;
203 for (std::map<v3s16, MapBlock *>::iterator
204 it = mblocks->begin();
205 it != mblocks->end(); ++it)
206 event.modified_blocks.insert(it->first);
208 map->dispatchEvent(&event);
215 LuaVoxelManip::LuaVoxelManip(ManualMapVoxelManipulator *mmvm, bool is_mg_vm)
218 this->is_mapgen_vm = is_mg_vm;
221 LuaVoxelManip::LuaVoxelManip(Map *map)
223 this->vm = new ManualMapVoxelManipulator(map);
224 this->is_mapgen_vm = false;
227 LuaVoxelManip::~LuaVoxelManip()
233 // Creates an LuaVoxelManip and leaves it on top of stack
234 int LuaVoxelManip::create_object(lua_State *L)
236 NO_MAP_LOCK_REQUIRED;
238 Environment *env = getEnv(L);
242 Map *map = &(env->getMap());
243 LuaVoxelManip *o = new LuaVoxelManip(map);
245 *(void **)(lua_newuserdata(L, sizeof(void *))) = o;
246 luaL_getmetatable(L, className);
247 lua_setmetatable(L, -2);
251 LuaVoxelManip *LuaVoxelManip::checkobject(lua_State *L, int narg)
253 NO_MAP_LOCK_REQUIRED;
255 luaL_checktype(L, narg, LUA_TUSERDATA);
257 void *ud = luaL_checkudata(L, narg, className);
259 luaL_typerror(L, narg, className);
261 return *(LuaVoxelManip **)ud; // unbox pointer
264 void LuaVoxelManip::Register(lua_State *L)
267 int methodtable = lua_gettop(L);
268 luaL_newmetatable(L, className);
269 int metatable = lua_gettop(L);
271 lua_pushliteral(L, "__metatable");
272 lua_pushvalue(L, methodtable);
273 lua_settable(L, metatable); // hide metatable from Lua getmetatable()
275 lua_pushliteral(L, "__index");
276 lua_pushvalue(L, methodtable);
277 lua_settable(L, metatable);
279 lua_pushliteral(L, "__gc");
280 lua_pushcfunction(L, gc_object);
281 lua_settable(L, metatable);
283 lua_pop(L, 1); // drop metatable
285 luaL_openlib(L, 0, methods, 0); // fill methodtable
286 lua_pop(L, 1); // drop methodtable
288 // Can be created from Lua (VoxelManip())
289 lua_register(L, className, create_object);
292 const char LuaVoxelManip::className[] = "VoxelManip";
293 const luaL_reg LuaVoxelManip::methods[] = {
294 luamethod(LuaVoxelManip, read_from_map),
295 luamethod(LuaVoxelManip, get_data),
296 luamethod(LuaVoxelManip, set_data),
297 luamethod(LuaVoxelManip, write_to_map),
298 luamethod(LuaVoxelManip, update_map),
299 luamethod(LuaVoxelManip, update_liquids),
300 luamethod(LuaVoxelManip, calc_lighting),
301 luamethod(LuaVoxelManip, set_lighting),