minetest/src/script/lua_api/l_vmanip.cpp
Dániel Juhász 57e5aa6628 Light update for map blocks
This is not really different from the light update of a voxel
manipulator. This update does not assume that the lighting was correct
before, therefore it is useful for correction.

Also expose this function to the Lua API for light correction, and
allow voxel manipulators not to update the light.
2017-04-20 05:39:14 +02:00

475 lines
10 KiB
C++

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