mirror of https://github.com/minetest/minetest.git
472 lines
10 KiB
C++
472 lines
10 KiB
C++
/*
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Minetest
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Copyright (C) 2013 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "lua_api/l_vmanip.h"
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#include "lua_api/l_internal.h"
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#include "common/c_content.h"
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#include "common/c_converter.h"
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#include "emerge.h"
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#include "environment.h"
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#include "map.h"
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#include "mapblock.h"
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#include "server.h"
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#include "mapgen/mapgen.h"
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#include "voxelalgorithms.h"
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// garbage collector
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int LuaVoxelManip::gc_object(lua_State *L)
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{
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LuaVoxelManip *o = *(LuaVoxelManip **)(lua_touserdata(L, 1));
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delete o;
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return 0;
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}
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int LuaVoxelManip::l_read_from_map(lua_State *L)
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{
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MAP_LOCK_REQUIRED;
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LuaVoxelManip *o = checkobject(L, 1);
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MMVManip *vm = o->vm;
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v3s16 bp1 = getNodeBlockPos(check_v3s16(L, 2));
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v3s16 bp2 = getNodeBlockPos(check_v3s16(L, 3));
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sortBoxVerticies(bp1, bp2);
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vm->initialEmerge(bp1, bp2);
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push_v3s16(L, vm->m_area.MinEdge);
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push_v3s16(L, vm->m_area.MaxEdge);
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return 2;
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}
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int LuaVoxelManip::l_get_data(lua_State *L)
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{
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NO_MAP_LOCK_REQUIRED;
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LuaVoxelManip *o = checkobject(L, 1);
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bool use_buffer = lua_istable(L, 2);
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MMVManip *vm = o->vm;
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u32 volume = vm->m_area.getVolume();
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if (use_buffer)
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lua_pushvalue(L, 2);
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else
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lua_newtable(L);
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for (u32 i = 0; i != volume; i++) {
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lua_Integer cid = vm->m_data[i].getContent();
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lua_pushinteger(L, cid);
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lua_rawseti(L, -2, i + 1);
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}
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return 1;
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}
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int LuaVoxelManip::l_set_data(lua_State *L)
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{
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NO_MAP_LOCK_REQUIRED;
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LuaVoxelManip *o = checkobject(L, 1);
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MMVManip *vm = o->vm;
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if (!lua_istable(L, 2))
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return 0;
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u32 volume = vm->m_area.getVolume();
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for (u32 i = 0; i != volume; i++) {
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lua_rawgeti(L, 2, i + 1);
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content_t c = lua_tointeger(L, -1);
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vm->m_data[i].setContent(c);
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lua_pop(L, 1);
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}
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return 0;
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}
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int LuaVoxelManip::l_write_to_map(lua_State *L)
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{
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MAP_LOCK_REQUIRED;
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LuaVoxelManip *o = checkobject(L, 1);
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bool update_light = !lua_isboolean(L, 2) || lua_toboolean(L, 2);
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GET_ENV_PTR;
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ServerMap *map = &(env->getServerMap());
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if (o->is_mapgen_vm || !update_light) {
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o->vm->blitBackAll(&(o->modified_blocks));
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} else {
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voxalgo::blit_back_with_light(map, o->vm,
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&(o->modified_blocks));
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}
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MapEditEvent event;
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event.type = MEET_OTHER;
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for (const auto &modified_block : o->modified_blocks)
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event.modified_blocks.insert(modified_block.first);
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map->dispatchEvent(&event);
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o->modified_blocks.clear();
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return 0;
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}
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int LuaVoxelManip::l_get_node_at(lua_State *L)
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{
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NO_MAP_LOCK_REQUIRED;
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const NodeDefManager *ndef = getServer(L)->getNodeDefManager();
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LuaVoxelManip *o = checkobject(L, 1);
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v3s16 pos = check_v3s16(L, 2);
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pushnode(L, o->vm->getNodeNoExNoEmerge(pos), ndef);
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return 1;
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}
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int LuaVoxelManip::l_set_node_at(lua_State *L)
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{
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NO_MAP_LOCK_REQUIRED;
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const NodeDefManager *ndef = getServer(L)->getNodeDefManager();
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LuaVoxelManip *o = checkobject(L, 1);
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v3s16 pos = check_v3s16(L, 2);
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MapNode n = readnode(L, 3, ndef);
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o->vm->setNodeNoEmerge(pos, n);
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return 0;
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}
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int LuaVoxelManip::l_update_liquids(lua_State *L)
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{
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GET_ENV_PTR;
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LuaVoxelManip *o = checkobject(L, 1);
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Map *map = &(env->getMap());
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const NodeDefManager *ndef = getServer(L)->getNodeDefManager();
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MMVManip *vm = o->vm;
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Mapgen mg;
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mg.vm = vm;
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mg.ndef = ndef;
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mg.updateLiquid(&map->m_transforming_liquid,
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vm->m_area.MinEdge, vm->m_area.MaxEdge);
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return 0;
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}
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int LuaVoxelManip::l_calc_lighting(lua_State *L)
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{
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NO_MAP_LOCK_REQUIRED;
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LuaVoxelManip *o = checkobject(L, 1);
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if (!o->is_mapgen_vm)
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return 0;
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const NodeDefManager *ndef = getServer(L)->getNodeDefManager();
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EmergeManager *emerge = getServer(L)->getEmergeManager();
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MMVManip *vm = o->vm;
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v3s16 yblock = v3s16(0, 1, 0) * MAP_BLOCKSIZE;
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v3s16 fpmin = vm->m_area.MinEdge;
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v3s16 fpmax = vm->m_area.MaxEdge;
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v3s16 pmin = lua_istable(L, 2) ? check_v3s16(L, 2) : fpmin + yblock;
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v3s16 pmax = lua_istable(L, 3) ? check_v3s16(L, 3) : fpmax - yblock;
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bool propagate_shadow = !lua_isboolean(L, 4) || lua_toboolean(L, 4);
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sortBoxVerticies(pmin, pmax);
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if (!vm->m_area.contains(VoxelArea(pmin, pmax)))
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throw LuaError("Specified voxel area out of VoxelManipulator bounds");
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Mapgen mg;
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mg.vm = vm;
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mg.ndef = ndef;
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mg.water_level = emerge->mgparams->water_level;
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mg.calcLighting(pmin, pmax, fpmin, fpmax, propagate_shadow);
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return 0;
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}
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int LuaVoxelManip::l_set_lighting(lua_State *L)
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{
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NO_MAP_LOCK_REQUIRED;
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LuaVoxelManip *o = checkobject(L, 1);
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if (!o->is_mapgen_vm)
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return 0;
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if (!lua_istable(L, 2))
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return 0;
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u8 light;
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light = (getintfield_default(L, 2, "day", 0) & 0x0F);
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light |= (getintfield_default(L, 2, "night", 0) & 0x0F) << 4;
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MMVManip *vm = o->vm;
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v3s16 yblock = v3s16(0, 1, 0) * MAP_BLOCKSIZE;
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v3s16 pmin = lua_istable(L, 3) ? check_v3s16(L, 3) : vm->m_area.MinEdge + yblock;
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v3s16 pmax = lua_istable(L, 4) ? check_v3s16(L, 4) : vm->m_area.MaxEdge - yblock;
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sortBoxVerticies(pmin, pmax);
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if (!vm->m_area.contains(VoxelArea(pmin, pmax)))
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throw LuaError("Specified voxel area out of VoxelManipulator bounds");
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Mapgen mg;
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mg.vm = vm;
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mg.setLighting(light, pmin, pmax);
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return 0;
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}
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int LuaVoxelManip::l_get_light_data(lua_State *L)
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{
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NO_MAP_LOCK_REQUIRED;
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LuaVoxelManip *o = checkobject(L, 1);
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MMVManip *vm = o->vm;
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u32 volume = vm->m_area.getVolume();
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lua_newtable(L);
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for (u32 i = 0; i != volume; i++) {
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lua_Integer light = vm->m_data[i].param1;
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lua_pushinteger(L, light);
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lua_rawseti(L, -2, i + 1);
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}
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return 1;
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}
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int LuaVoxelManip::l_set_light_data(lua_State *L)
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{
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NO_MAP_LOCK_REQUIRED;
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LuaVoxelManip *o = checkobject(L, 1);
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MMVManip *vm = o->vm;
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if (!lua_istable(L, 2))
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return 0;
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u32 volume = vm->m_area.getVolume();
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for (u32 i = 0; i != volume; i++) {
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lua_rawgeti(L, 2, i + 1);
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u8 light = lua_tointeger(L, -1);
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vm->m_data[i].param1 = light;
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lua_pop(L, 1);
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}
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return 0;
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}
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int LuaVoxelManip::l_get_param2_data(lua_State *L)
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{
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NO_MAP_LOCK_REQUIRED;
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LuaVoxelManip *o = checkobject(L, 1);
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bool use_buffer = lua_istable(L, 2);
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MMVManip *vm = o->vm;
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u32 volume = vm->m_area.getVolume();
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if (use_buffer)
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lua_pushvalue(L, 2);
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else
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lua_newtable(L);
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for (u32 i = 0; i != volume; i++) {
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lua_Integer param2 = vm->m_data[i].param2;
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lua_pushinteger(L, param2);
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lua_rawseti(L, -2, i + 1);
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}
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return 1;
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}
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int LuaVoxelManip::l_set_param2_data(lua_State *L)
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{
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NO_MAP_LOCK_REQUIRED;
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LuaVoxelManip *o = checkobject(L, 1);
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MMVManip *vm = o->vm;
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if (!lua_istable(L, 2))
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return 0;
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u32 volume = vm->m_area.getVolume();
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for (u32 i = 0; i != volume; i++) {
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lua_rawgeti(L, 2, i + 1);
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u8 param2 = lua_tointeger(L, -1);
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vm->m_data[i].param2 = param2;
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lua_pop(L, 1);
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}
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return 0;
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}
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int LuaVoxelManip::l_update_map(lua_State *L)
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{
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return 0;
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}
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int LuaVoxelManip::l_was_modified(lua_State *L)
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{
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NO_MAP_LOCK_REQUIRED;
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LuaVoxelManip *o = checkobject(L, 1);
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MMVManip *vm = o->vm;
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lua_pushboolean(L, vm->m_is_dirty);
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return 1;
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}
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int LuaVoxelManip::l_get_emerged_area(lua_State *L)
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{
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NO_MAP_LOCK_REQUIRED;
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LuaVoxelManip *o = checkobject(L, 1);
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push_v3s16(L, o->vm->m_area.MinEdge);
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push_v3s16(L, o->vm->m_area.MaxEdge);
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return 2;
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}
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LuaVoxelManip::LuaVoxelManip(MMVManip *mmvm, bool is_mg_vm) :
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is_mapgen_vm(is_mg_vm),
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vm(mmvm)
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{
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}
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LuaVoxelManip::LuaVoxelManip(Map *map) : vm(new MMVManip(map))
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{
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}
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LuaVoxelManip::LuaVoxelManip(Map *map, v3s16 p1, v3s16 p2)
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{
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vm = new MMVManip(map);
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v3s16 bp1 = getNodeBlockPos(p1);
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v3s16 bp2 = getNodeBlockPos(p2);
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sortBoxVerticies(bp1, bp2);
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vm->initialEmerge(bp1, bp2);
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}
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LuaVoxelManip::~LuaVoxelManip()
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{
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if (!is_mapgen_vm)
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delete vm;
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}
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// LuaVoxelManip()
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// Creates an LuaVoxelManip and leaves it on top of stack
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int LuaVoxelManip::create_object(lua_State *L)
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{
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GET_ENV_PTR;
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Map *map = &(env->getMap());
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LuaVoxelManip *o = (lua_istable(L, 1) && lua_istable(L, 2)) ?
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new LuaVoxelManip(map, check_v3s16(L, 1), check_v3s16(L, 2)) :
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new LuaVoxelManip(map);
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*(void **)(lua_newuserdata(L, sizeof(void *))) = o;
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luaL_getmetatable(L, className);
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lua_setmetatable(L, -2);
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return 1;
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}
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LuaVoxelManip *LuaVoxelManip::checkobject(lua_State *L, int narg)
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{
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NO_MAP_LOCK_REQUIRED;
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luaL_checktype(L, narg, LUA_TUSERDATA);
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void *ud = luaL_checkudata(L, narg, className);
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if (!ud)
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luaL_typerror(L, narg, className);
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return *(LuaVoxelManip **)ud; // unbox pointer
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}
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void LuaVoxelManip::Register(lua_State *L)
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{
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lua_newtable(L);
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int methodtable = lua_gettop(L);
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luaL_newmetatable(L, className);
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int metatable = lua_gettop(L);
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lua_pushliteral(L, "__metatable");
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lua_pushvalue(L, methodtable);
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lua_settable(L, metatable); // hide metatable from Lua getmetatable()
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lua_pushliteral(L, "__index");
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lua_pushvalue(L, methodtable);
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lua_settable(L, metatable);
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lua_pushliteral(L, "__gc");
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lua_pushcfunction(L, gc_object);
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lua_settable(L, metatable);
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lua_pop(L, 1); // drop metatable
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luaL_openlib(L, 0, methods, 0); // fill methodtable
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lua_pop(L, 1); // drop methodtable
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// Can be created from Lua (VoxelManip())
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lua_register(L, className, create_object);
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}
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const char LuaVoxelManip::className[] = "VoxelManip";
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const luaL_Reg LuaVoxelManip::methods[] = {
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luamethod(LuaVoxelManip, read_from_map),
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luamethod(LuaVoxelManip, get_data),
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luamethod(LuaVoxelManip, set_data),
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luamethod(LuaVoxelManip, get_node_at),
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luamethod(LuaVoxelManip, set_node_at),
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luamethod(LuaVoxelManip, write_to_map),
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luamethod(LuaVoxelManip, update_map),
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luamethod(LuaVoxelManip, update_liquids),
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luamethod(LuaVoxelManip, calc_lighting),
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luamethod(LuaVoxelManip, set_lighting),
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luamethod(LuaVoxelManip, get_light_data),
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luamethod(LuaVoxelManip, set_light_data),
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luamethod(LuaVoxelManip, get_param2_data),
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luamethod(LuaVoxelManip, set_param2_data),
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luamethod(LuaVoxelManip, was_modified),
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luamethod(LuaVoxelManip, get_emerged_area),
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{0,0}
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};
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