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/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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 "cpp_api/s_env.h"
#include "common/c_converter.h"
#include "log.h"
#include "environment.h"
#include "mapgen.h"
#include "lua_api/l_env.h"
extern "C" {
#include "lauxlib.h"
}
void ScriptApiEnv::environment_OnGenerated(v3s16 minp, v3s16 maxp,
u32 blockseed)
{
SCRIPTAPI_PRECHECKHEADER
// Get minetest.registered_on_generateds
lua_getglobal(L, "minetest");
lua_getfield(L, -1, "registered_on_generateds");
// Call callbacks
push_v3s16(L, minp);
push_v3s16(L, maxp);
lua_pushnumber(L, blockseed);
runCallbacks(3, RUN_CALLBACKS_MODE_FIRST);
}
void ScriptApiEnv::environment_Step(float dtime)
{
SCRIPTAPI_PRECHECKHEADER
//infostream<<"scriptapi_environment_step"<<std::endl;
// Get minetest.registered_globalsteps
lua_getglobal(L, "minetest");
lua_getfield(L, -1, "registered_globalsteps");
// Call callbacks
lua_pushnumber(L, dtime);
runCallbacks(1, RUN_CALLBACKS_MODE_FIRST);
}
void ScriptApiEnv::environment_OnMapgenInit(MapgenParams *mgparams)
{
SCRIPTAPI_PRECHECKHEADER
// Get minetest.registered_on_mapgen_inits
lua_getglobal(L, "minetest");
lua_getfield(L, -1, "registered_on_mapgen_inits");
// Call callbacks
lua_newtable(L);
lua_pushstring(L, mgparams->mg_name.c_str());
lua_setfield(L, -2, "mgname");
lua_pushinteger(L, mgparams->seed);
lua_setfield(L, -2, "seed");
lua_pushinteger(L, mgparams->water_level);
lua_setfield(L, -2, "water_level");
std::string flagstr = writeFlagString(mgparams->flags, flagdesc_mapgen);
lua_pushstring(L, flagstr.c_str());
lua_setfield(L, -2, "flags");
runCallbacks(1, RUN_CALLBACKS_MODE_FIRST);
}
void ScriptApiEnv::initializeEnvironment(ServerEnvironment *env)
{
SCRIPTAPI_PRECHECKHEADER
verbosestream<<"scriptapi_add_environment"<<std::endl;
setEnv(env);
/*
Add ActiveBlockModifiers to environment
*/
// Get minetest.registered_abms
lua_getglobal(L, "minetest");
lua_getfield(L, -1, "registered_abms");
luaL_checktype(L, -1, LUA_TTABLE);
int registered_abms = lua_gettop(L);
if(lua_istable(L, registered_abms)){
int table = lua_gettop(L);
lua_pushnil(L);
while(lua_next(L, table) != 0){
// key at index -2 and value at index -1
int id = lua_tonumber(L, -2);
int current_abm = lua_gettop(L);
std::set<std::string> trigger_contents;
lua_getfield(L, current_abm, "nodenames");
if(lua_istable(L, -1)){
int table = lua_gettop(L);
lua_pushnil(L);
while(lua_next(L, table) != 0){
// key at index -2 and value at index -1
luaL_checktype(L, -1, LUA_TSTRING);
trigger_contents.insert(lua_tostring(L, -1));
// removes value, keeps key for next iteration
lua_pop(L, 1);
}
} else if(lua_isstring(L, -1)){
trigger_contents.insert(lua_tostring(L, -1));
}
lua_pop(L, 1);
std::set<std::string> required_neighbors;
lua_getfield(L, current_abm, "neighbors");
if(lua_istable(L, -1)){
int table = lua_gettop(L);
lua_pushnil(L);
while(lua_next(L, table) != 0){
// key at index -2 and value at index -1
luaL_checktype(L, -1, LUA_TSTRING);
required_neighbors.insert(lua_tostring(L, -1));
// removes value, keeps key for next iteration
lua_pop(L, 1);
}
} else if(lua_isstring(L, -1)){
required_neighbors.insert(lua_tostring(L, -1));
}
lua_pop(L, 1);
float trigger_interval = 10.0;
getfloatfield(L, current_abm, "interval", trigger_interval);
int trigger_chance = 50;
getintfield(L, current_abm, "chance", trigger_chance);
LuaABM *abm = new LuaABM(L, id, trigger_contents,
required_neighbors, trigger_interval, trigger_chance);
env->addActiveBlockModifier(abm);
// removes value, keeps key for next iteration
lua_pop(L, 1);
}
}
lua_pop(L, 1);
}
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