minetest.git - modified minetest for gpcfs purposes

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Diffstat (limited to 'src/mods.cpp')

0 files changed, 0 insertions, 0 deletions

/* 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_entity.h" #include "cpp_api/s_internal.h" #include "log.h" #include "object_properties.h" #include "common/c_converter.h" #include "common/c_content.h" bool ScriptApiEntity::luaentity_Add(u16 id, const char *name) { SCRIPTAPI_PRECHECKHEADER verbosestream<<"scriptapi_luaentity_add: id="<<id<<" name=\"" <<name<<"\""<<std::endl; // Get core.registered_entities[name] lua_getglobal(L, "core"); lua_getfield(L, -1, "registered_entities"); luaL_checktype(L, -1, LUA_TTABLE); lua_pushstring(L, name); lua_gettable(L, -2); // Should be a table, which we will use as a prototype //luaL_checktype(L, -1, LUA_TTABLE); if (lua_type(L, -1) != LUA_TTABLE){ errorstream<<"LuaEntity name \""<<name<<"\" not defined"<<std::endl; return false; } int prototype_table = lua_gettop(L); //dump2(L, "prototype_table"); // Create entity object lua_newtable(L); int object = lua_gettop(L); // Set object metatable lua_pushvalue(L, prototype_table); lua_setmetatable(L, -2); // Add object reference // This should be userdata with metatable ObjectRef objectrefGet(L, id); luaL_checktype(L, -1, LUA_TUSERDATA); if (!luaL_checkudata(L, -1, "ObjectRef")) luaL_typerror(L, -1, "ObjectRef"); lua_setfield(L, -2, "object"); // core.luaentities[id] = object lua_getglobal(L, "core"); lua_getfield(L, -1, "luaentities"); luaL_checktype(L, -1, LUA_TTABLE); lua_pushnumber(L, id); // Push id lua_pushvalue(L, object); // Copy object to top of stack lua_settable(L, -3); return true; } void ScriptApiEntity::luaentity_Activate(u16 id, const std::string &staticdata, u32 dtime_s) { SCRIPTAPI_PRECHECKHEADER verbosestream << "scriptapi_luaentity_activate: id=" << id << std::endl; int error_handler = PUSH_ERROR_HANDLER(L); // Get core.luaentities[id] luaentity_get(L, id); int object = lua_gettop(L); // Get on_activate function lua_getfield(L, -1, "on_activate"); if (!lua_isnil(L, -1)) { luaL_checktype(L, -1, LUA_TFUNCTION); lua_pushvalue(L, object); // self lua_pushlstring(L, staticdata.c_str(), staticdata.size()); lua_pushinteger(L, dtime_s); setOriginFromTable(object); PCALL_RES(lua_pcall(L, 3, 0, error_handler)); } else { lua_pop(L, 1); } lua_pop(L, 2); // Pop object and error handler } void ScriptApiEntity::luaentity_Remove(u16 id) { SCRIPTAPI_PRECHECKHEADER verbosestream << "scriptapi_luaentity_rm: id=" << id << std::endl; // Get core.luaentities table lua_getglobal(L, "core"); lua_getfield(L, -1, "luaentities"); luaL_checktype(L, -1, LUA_TTABLE); int objectstable = lua_gettop(L); // Set luaentities[id] = nil lua_pushnumber(L, id); // Push id lua_pushnil(L); lua_settable(L, objectstable); lua_pop(L, 2); // pop luaentities, core } std::string ScriptApiEntity::luaentity_GetStaticdata(u16 id) { SCRIPTAPI_PRECHECKHEADER //infostream<<"scriptapi_luaentity_get_staticdata: id="<<id<<std::endl; int error_handler = PUSH_ERROR_HANDLER(L); // Get core.luaentities[id] luaentity_get(L, id); int object = lua_gettop(L); // Get get_staticdata function lua_getfield(L, -1, "get_staticdata"); if (lua_isnil(L, -1)) { lua_pop(L, 2); // Pop entity and get_staticdata return ""; } luaL_checktype(L, -1, LUA_TFUNCTION); lua_pushvalue(L, object); // self setOriginFromTable(object); PCALL_RES(lua_pcall(L, 1, 1, error_handler)); lua_remove(L, object); lua_remove(L, error_handler); size_t len = 0; const char *s = lua_tolstring(L, -1, &len); lua_pop(L, 1); // Pop static data return std::string(s, len); } void ScriptApiEntity::luaentity_GetProperties(u16 id, ObjectProperties *prop) { SCRIPTAPI_PRECHECKHEADER //infostream<<"scriptapi_luaentity_get_properties: id="<<id<<std::endl; // Get core.luaentities[id] luaentity_get(L, id); // Set default values that differ from ObjectProperties defaults prop->hp_max = 10; /* Read stuff */ prop->hp_max = getintfield_default(L, -1, "hp_max", 10); getboolfield(L, -1, "physical", prop->physical); getboolfield(L, -1, "collide_with_objects", prop->collideWithObjects); getfloatfield(L, -1, "weight", prop->weight); lua_getfield(L, -1, "collisionbox"); if (lua_istable(L, -1)) prop->collisionbox = read_aabb3f(L, -1, 1.0); lua_pop(L, 1); getstringfield(L, -1, "visual", prop->visual); getstringfield(L, -1, "mesh", prop->mesh); // Deprecated: read object properties directly read_object_properties(L, -1, prop); // Read initial_properties lua_getfield(L, -1, "initial_properties"); read_object_properties(L, -1, prop); lua_pop(L, 1); } void ScriptApiEntity::luaentity_Step(u16 id, float dtime) { SCRIPTAPI_PRECHECKHEADER //infostream<<"scriptapi_luaentity_step: id="<<id<<std::endl; int error_handler = PUSH_ERROR_HANDLER(L); // Get core.luaentities[id] luaentity_get(L, id); int object = lua_gettop(L); // State: object is at top of stack // Get step function lua_getfield(L, -1, "on_step"); if (lua_isnil(L, -1)) { lua_pop(L, 2); // Pop on_step and entity return; } luaL_checktype(L, -1, LUA_TFUNCTION); lua_pushvalue(L, object); // self


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