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-rw-r--r--src/script/cpp_api/s_env.cpp132
1 files changed, 132 insertions, 0 deletions
diff --git a/src/script/cpp_api/s_env.cpp b/src/script/cpp_api/s_env.cpp
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+++ b/src/script/cpp_api/s_env.cpp
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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 "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::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);
+}