1703 lines
44 KiB
C++
1703 lines
44 KiB
C++
/*
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Minetest-c55
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Copyright (C) 2011 celeron55, Perttu Ahola <celeron55@gmail.com>
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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 General Public License as published by
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the Free Software Foundation; either version 2 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 General Public License for more details.
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You should have received a copy of the GNU 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 "scriptapi.h"
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#include <iostream>
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extern "C" {
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#include <lua.h>
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#include <lualib.h>
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#include <lauxlib.h>
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}
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#include "log.h"
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#include "server.h"
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#include "porting.h"
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#include "filesys.h"
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#include "serverobject.h"
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#include "script.h"
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//#include "luna.h"
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#include "luaentity_common.h"
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#include "content_sao.h" // For LuaEntitySAO
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#include "tooldef.h"
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#include "nodedef.h"
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#include "craftdef.h"
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/*
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TODO:
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- Node definition
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- Random node triggers (like grass growth)
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- Deterministic node triggers (like falling sand)
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- Object visual client-side stuff
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- Blink effect
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- Spritesheets and animation
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- LuaNodeMetadata
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blockdef.metadata_type =
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""
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"sign"
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"furnace"
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"chest"
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"locked_chest"
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"lua"
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- Stores an inventory and stuff in a Settings object
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meta.inventory_add_list("main")
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blockdef.on_inventory_modified
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meta.set("owner", playername)
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meta.get("owner")
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- Item definition (actually, only CraftItem)
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- (not scripting) Putting items in node metadata (virtual)
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*/
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static void stackDump(lua_State *L, std::ostream &o)
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{
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int i;
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int top = lua_gettop(L);
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for (i = 1; i <= top; i++) { /* repeat for each level */
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int t = lua_type(L, i);
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switch (t) {
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case LUA_TSTRING: /* strings */
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o<<"\""<<lua_tostring(L, i)<<"\"";
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break;
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case LUA_TBOOLEAN: /* booleans */
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o<<(lua_toboolean(L, i) ? "true" : "false");
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break;
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case LUA_TNUMBER: /* numbers */ {
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char buf[10];
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snprintf(buf, 10, "%g", lua_tonumber(L, i));
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o<<buf;
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break; }
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default: /* other values */
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o<<lua_typename(L, t);
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break;
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}
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o<<" ";
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}
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o<<std::endl;
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}
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static void realitycheck(lua_State *L)
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{
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int top = lua_gettop(L);
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if(top >= 30){
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dstream<<"Stack is over 30:"<<std::endl;
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stackDump(L, dstream);
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script_error(L, "Stack is over 30 (reality check)");
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}
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}
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class StackUnroller
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{
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private:
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lua_State *m_lua;
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int m_original_top;
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public:
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StackUnroller(lua_State *L):
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m_lua(L),
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m_original_top(-1)
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{
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m_original_top = lua_gettop(m_lua); // store stack height
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}
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~StackUnroller()
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{
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lua_settop(m_lua, m_original_top); // restore stack height
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}
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};
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static v3f readFloatPos(lua_State *L, int index)
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{
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v3f pos;
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luaL_checktype(L, index, LUA_TTABLE);
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lua_getfield(L, index, "x");
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pos.X = lua_tonumber(L, -1);
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lua_pop(L, 1);
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lua_getfield(L, index, "y");
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pos.Y = lua_tonumber(L, -1);
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lua_pop(L, 1);
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lua_getfield(L, index, "z");
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pos.Z = lua_tonumber(L, -1);
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lua_pop(L, 1);
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pos *= BS; // Scale to internal format
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return pos;
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}
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static void pushpos(lua_State *L, v3s16 p)
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{
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lua_newtable(L);
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lua_pushnumber(L, p.X);
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lua_setfield(L, -2, "x");
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lua_pushnumber(L, p.Y);
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lua_setfield(L, -2, "y");
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lua_pushnumber(L, p.Z);
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lua_setfield(L, -2, "z");
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}
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static v3s16 readpos(lua_State *L, int index)
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{
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// Correct rounding at <0
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v3f pf = readFloatPos(L, index);
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return floatToInt(pf, BS);
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}
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static void pushnode(lua_State *L, const MapNode &n, INodeDefManager *ndef)
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{
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lua_newtable(L);
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lua_pushstring(L, ndef->get(n).name.c_str());
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lua_setfield(L, -2, "name");
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lua_pushnumber(L, n.getParam1());
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lua_setfield(L, -2, "param1");
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lua_pushnumber(L, n.getParam2());
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lua_setfield(L, -2, "param2");
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}
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static MapNode readnode(lua_State *L, int index, INodeDefManager *ndef)
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{
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lua_getfield(L, index, "name");
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const char *name = lua_tostring(L, -1);
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lua_pop(L, 1);
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u8 param1;
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lua_getfield(L, index, "param1");
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if(lua_isnil(L, -1))
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param1 = 0;
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else
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param1 = lua_tonumber(L, -1);
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lua_pop(L, 1);
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u8 param2;
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lua_getfield(L, index, "param2");
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if(lua_isnil(L, -1))
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param2 = 0;
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else
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param2 = lua_tonumber(L, -1);
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lua_pop(L, 1);
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return MapNode(ndef, name, param1, param2);
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}
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static video::SColor readARGB8(lua_State *L, int index)
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{
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video::SColor color;
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luaL_checktype(L, index, LUA_TTABLE);
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lua_getfield(L, index, "a");
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if(lua_isnumber(L, -1))
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color.setAlpha(lua_tonumber(L, -1));
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lua_pop(L, 1);
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lua_getfield(L, index, "r");
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color.setRed(lua_tonumber(L, -1));
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lua_pop(L, 1);
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lua_getfield(L, index, "g");
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color.setGreen(lua_tonumber(L, -1));
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lua_pop(L, 1);
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lua_getfield(L, index, "b");
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color.setBlue(lua_tonumber(L, -1));
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lua_pop(L, 1);
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return color;
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}
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static bool getstringfield(lua_State *L, int table,
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const char *fieldname, std::string &result)
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{
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lua_getfield(L, table, fieldname);
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bool got = false;
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if(lua_isstring(L, -1)){
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result = lua_tostring(L, -1);
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got = true;
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}
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lua_pop(L, 1);
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return got;
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}
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static bool getintfield(lua_State *L, int table,
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const char *fieldname, int &result)
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{
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lua_getfield(L, table, fieldname);
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bool got = false;
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if(lua_isnumber(L, -1)){
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result = lua_tonumber(L, -1);
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got = true;
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}
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lua_pop(L, 1);
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return got;
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}
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static bool getfloatfield(lua_State *L, int table,
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const char *fieldname, float &result)
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{
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lua_getfield(L, table, fieldname);
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bool got = false;
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if(lua_isnumber(L, -1)){
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result = lua_tonumber(L, -1);
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got = true;
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}
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lua_pop(L, 1);
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return got;
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}
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static bool getboolfield(lua_State *L, int table,
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const char *fieldname, bool &result)
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{
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lua_getfield(L, table, fieldname);
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bool got = false;
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if(lua_isboolean(L, -1)){
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result = lua_toboolean(L, -1);
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got = true;
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}
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lua_pop(L, 1);
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return got;
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}
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static std::string getstringfield_default(lua_State *L, int table,
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const char *fieldname, const std::string &default_)
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{
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std::string result = default_;
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getstringfield(L, table, fieldname, result);
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return result;
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}
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static int getintfield_default(lua_State *L, int table,
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const char *fieldname, int default_)
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{
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int result = default_;
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getintfield(L, table, fieldname, result);
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return result;
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}
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static bool getboolfield_default(lua_State *L, int table,
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const char *fieldname, bool default_)
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{
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bool result = default_;
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getboolfield(L, table, fieldname, result);
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return result;
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}
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struct EnumString
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{
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int num;
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const char *str;
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};
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static bool string_to_enum(const EnumString *spec, int &result,
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const std::string &str)
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{
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const EnumString *esp = spec;
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while(esp->str){
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if(str == std::string(esp->str)){
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result = esp->num;
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return true;
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}
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esp++;
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}
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return false;
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}
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/*static bool enum_to_string(const EnumString *spec, std::string &result,
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int num)
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{
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const EnumString *esp = spec;
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while(esp){
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if(num == esp->num){
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result = esp->str;
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return true;
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}
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esp++;
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}
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return false;
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}*/
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static int getenumfield(lua_State *L, int table,
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const char *fieldname, const EnumString *spec, int default_)
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{
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int result = default_;
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string_to_enum(spec, result,
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getstringfield_default(L, table, fieldname, ""));
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return result;
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}
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struct EnumString es_DrawType[] =
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{
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{NDT_NORMAL, "normal"},
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{NDT_AIRLIKE, "airlike"},
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{NDT_LIQUID, "liquid"},
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{NDT_FLOWINGLIQUID, "flowingliquid"},
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{NDT_GLASSLIKE, "glasslike"},
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{NDT_ALLFACES, "allfaces"},
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{NDT_ALLFACES_OPTIONAL, "allfaces_optional"},
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{NDT_TORCHLIKE, "torchlike"},
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{NDT_SIGNLIKE, "signlike"},
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{NDT_PLANTLIKE, "plantlike"},
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{NDT_FENCELIKE, "fencelike"},
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{NDT_RAILLIKE, "raillike"},
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{0, NULL},
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};
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struct EnumString es_ContentParamType[] =
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{
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{CPT_NONE, "none"},
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{CPT_LIGHT, "light"},
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{CPT_MINERAL, "mineral"},
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{CPT_FACEDIR_SIMPLE, "facedir_simple"},
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};
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/*
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Global functions
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*/
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// Register new object prototype
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// register_entity(name, prototype)
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static int l_register_entity(lua_State *L)
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{
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const char *name = luaL_checkstring(L, 1);
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infostream<<"register_entity: "<<name<<std::endl;
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luaL_checktype(L, 2, LUA_TTABLE);
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// Get minetest.registered_entities
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lua_getglobal(L, "minetest");
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lua_getfield(L, -1, "registered_entities");
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luaL_checktype(L, -1, LUA_TTABLE);
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int registered_entities = lua_gettop(L);
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lua_pushvalue(L, 2); // Object = param 2 -> stack top
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// registered_entities[name] = object
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lua_setfield(L, registered_entities, name);
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// Get registered object to top of stack
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lua_pushvalue(L, 2);
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// Set __index to point to itself
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lua_pushvalue(L, -1);
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lua_setfield(L, -2, "__index");
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// Set metatable.__index = metatable
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luaL_getmetatable(L, "minetest.entity");
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lua_pushvalue(L, -1); // duplicate metatable
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lua_setfield(L, -2, "__index");
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// Set object metatable
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lua_setmetatable(L, -2);
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return 0; /* number of results */
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}
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// register_tool(name, {lots of stuff})
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static int l_register_tool(lua_State *L)
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{
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const char *name = luaL_checkstring(L, 1);
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infostream<<"register_tool: "<<name<<std::endl;
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luaL_checktype(L, 2, LUA_TTABLE);
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int table = 2;
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// Get server from registry
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lua_getfield(L, LUA_REGISTRYINDEX, "minetest_server");
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Server *server = (Server*)lua_touserdata(L, -1);
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// And get the writable tool definition manager from the server
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IWritableToolDefManager *tooldef =
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server->getWritableToolDefManager();
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ToolDefinition def;
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getstringfield(L, table, "image", def.imagename);
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getfloatfield(L, table, "basetime", def.properties.basetime);
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getfloatfield(L, table, "dt_weight", def.properties.dt_weight);
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getfloatfield(L, table, "dt_crackiness", def.properties.dt_crackiness);
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getfloatfield(L, table, "dt_crumbliness", def.properties.dt_crumbliness);
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getfloatfield(L, table, "dt_cuttability", def.properties.dt_cuttability);
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getfloatfield(L, table, "basedurability", def.properties.basedurability);
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getfloatfield(L, table, "dd_weight", def.properties.dd_weight);
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getfloatfield(L, table, "dd_crackiness", def.properties.dd_crackiness);
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getfloatfield(L, table, "dd_crumbliness", def.properties.dd_crumbliness);
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getfloatfield(L, table, "dd_cuttability", def.properties.dd_cuttability);
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tooldef->registerTool(name, def);
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return 0; /* number of results */
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}
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// register_node(name, {lots of stuff})
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static int l_register_node(lua_State *L)
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{
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const char *name = luaL_checkstring(L, 1);
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infostream<<"register_node: "<<name<<std::endl;
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luaL_checktype(L, 2, LUA_TTABLE);
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int table0 = 2;
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// Get server from registry
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lua_getfield(L, LUA_REGISTRYINDEX, "minetest_server");
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Server *server = (Server*)lua_touserdata(L, -1);
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// And get the writable node definition manager from the server
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IWritableNodeDefManager *nodedef =
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server->getWritableNodeDefManager();
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ContentFeatures f;
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f.name = name;
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/*
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Visual definition
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*/
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f.drawtype = (NodeDrawType)getenumfield(L, table0, "drawtype", es_DrawType,
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f.drawtype);
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getfloatfield(L, table0, "visual_scale", f.visual_scale);
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lua_getfield(L, table0, "tile_images");
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if(lua_istable(L, -1)){
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int table = lua_gettop(L);
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lua_pushnil(L);
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int i = 0;
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while(lua_next(L, table) != 0){
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// key at index -2 and value at index -1
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if(lua_isstring(L, -1))
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f.tname_tiles[i] = lua_tostring(L, -1);
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else
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f.tname_tiles[i] = "";
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// removes value, keeps key for next iteration
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lua_pop(L, 1);
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i++;
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if(i==6){
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lua_pop(L, 1);
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break;
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}
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}
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}
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lua_pop(L, 1);
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getstringfield(L, table0, "inventory_image", f.tname_inventory);
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lua_getfield(L, table0, "special_materials");
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if(lua_istable(L, -1)){
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int table = lua_gettop(L);
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lua_pushnil(L);
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int i = 0;
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while(lua_next(L, table) != 0){
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// key at index -2 and value at index -1
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int smtable = lua_gettop(L);
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std::string tname = getstringfield_default(
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L, smtable, "image", "");
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bool backface_culling = getboolfield_default(
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L, smtable, "backface_culling", true);
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MaterialSpec mspec(tname, backface_culling);
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f.setSpecialMaterial(i, mspec);
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// removes value, keeps key for next iteration
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lua_pop(L, 1);
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i++;
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if(i==6){
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lua_pop(L, 1);
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break;
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}
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}
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}
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lua_pop(L, 1);
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f.alpha = getintfield_default(L, table0, "alpha", 255);
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/*
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Other stuff
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*/
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lua_getfield(L, table0, "post_effect_color");
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if(!lua_isnil(L, -1))
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f.post_effect_color = readARGB8(L, -1);
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f.param_type = (ContentParamType)getenumfield(L, table0, "paramtype",
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es_ContentParamType, f.param_type);
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// True for all ground-like things like stone and mud, false for eg. trees
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getboolfield(L, table0, "is_ground_content", f.is_ground_content);
|
|
getboolfield(L, table0, "light_propagates", f.light_propagates);
|
|
getboolfield(L, table0, "sunlight_propagates", f.sunlight_propagates);
|
|
// This is used for collision detection.
|
|
// Also for general solidness queries.
|
|
getboolfield(L, table0, "walkable", f.walkable);
|
|
// Player can point to these
|
|
getboolfield(L, table0, "pointable", f.pointable);
|
|
// Player can dig these
|
|
getboolfield(L, table0, "diggable", f.diggable);
|
|
// Player can climb these
|
|
getboolfield(L, table0, "climbable", f.climbable);
|
|
// Player can build on these
|
|
getboolfield(L, table0, "buildable_to", f.buildable_to);
|
|
// If true, param2 is set to direction when placed. Used for torches.
|
|
// NOTE: the direction format is quite inefficient and should be changed
|
|
getboolfield(L, table0, "wall_mounted", f.wall_mounted);
|
|
// If true, node is equivalent to air. Torches are, air is. Water is not.
|
|
// Is used for example to check whether a mud block can have grass on.
|
|
getboolfield(L, table0, "air_equivalent", f.air_equivalent);
|
|
// Whether this content type often contains mineral.
|
|
// Used for texture atlas creation.
|
|
// Currently only enabled for CONTENT_STONE.
|
|
getboolfield(L, table0, "often_contains_mineral", f.often_contains_mineral);
|
|
// Inventory item string as which the node appears in inventory when dug.
|
|
// Mineral overrides this.
|
|
getstringfield(L, table0, "dug_item", f.dug_item);
|
|
// Extra dug item and its rarity
|
|
getstringfield(L, table0, "extra_dug_item", f.extra_dug_item);
|
|
// Usual get interval for extra dug item
|
|
getintfield(L, table0, "extra_dug_item_rarity", f.extra_dug_item_rarity);
|
|
// Metadata name of node (eg. "furnace")
|
|
getstringfield(L, table0, "metadata_name", f.metadata_name);
|
|
// Whether the node is non-liquid, source liquid or flowing liquid
|
|
// TODO: Enum read
|
|
// enum LiquidType liquid_type;
|
|
// If the content is liquid, this is the flowing version of the liquid.
|
|
// TODO: as name
|
|
// content_t liquid_alternative_flowing;
|
|
// If the content is liquid, this is the source version of the liquid.
|
|
// TODO: as name
|
|
// content_t liquid_alternative_source;
|
|
// Viscosity for fluid flow, ranging from 1 to 7, with
|
|
// 1 giving almost instantaneous propagation and 7 being
|
|
// the slowest possible
|
|
f.liquid_viscosity = getintfield_default(L, table0,
|
|
"liquid_viscosity", f.liquid_viscosity);
|
|
// Amount of light the node emits
|
|
f.light_source = getintfield_default(L, table0,
|
|
"light_source", f.light_source);
|
|
f.damage_per_second = getintfield_default(L, table0,
|
|
"damage_per_second", f.damage_per_second);
|
|
// TODO
|
|
//NodeBox selection_box;
|
|
// TODO
|
|
//MaterialProperties material;
|
|
getstringfield(L, table0, "cookresult_item", f.cookresult_item);
|
|
getfloatfield(L, table0, "furnace_cooktime", f.furnace_cooktime);
|
|
getfloatfield(L, table0, "furnace_burntime", f.furnace_burntime);
|
|
|
|
/*
|
|
Temporary stuff
|
|
*/
|
|
|
|
// TODO: Replace with actual parameter reading
|
|
// Temporarily set some sane parameters to allow digging
|
|
f.material.diggability = DIGGABLE_NORMAL;
|
|
f.material.weight = 0;
|
|
f.material.crackiness = 0;
|
|
f.material.crumbliness = 0;
|
|
f.material.cuttability = 0;
|
|
f.dug_item = std::string("NodeItem \"")+name+"\" 1";
|
|
|
|
/*
|
|
Register it
|
|
*/
|
|
nodedef->set(name, f);
|
|
|
|
return 0; /* number of results */
|
|
}
|
|
|
|
// register_craft({output=item, recipe={{item00,item10},{item01,item11}})
|
|
static int l_register_craft(lua_State *L)
|
|
{
|
|
infostream<<"register_craft"<<std::endl;
|
|
luaL_checktype(L, 1, LUA_TTABLE);
|
|
int table0 = 1;
|
|
|
|
// Get server from registry
|
|
lua_getfield(L, LUA_REGISTRYINDEX, "minetest_server");
|
|
Server *server = (Server*)lua_touserdata(L, -1);
|
|
// And get the writable craft definition manager from the server
|
|
IWritableCraftDefManager *craftdef =
|
|
server->getWritableCraftDefManager();
|
|
|
|
std::string output;
|
|
int width = 0;
|
|
std::vector<std::string> input;
|
|
|
|
lua_getfield(L, table0, "output");
|
|
luaL_checktype(L, -1, LUA_TSTRING);
|
|
if(lua_isstring(L, -1))
|
|
output = lua_tostring(L, -1);
|
|
lua_pop(L, 1);
|
|
|
|
lua_getfield(L, table0, "recipe");
|
|
luaL_checktype(L, -1, LUA_TTABLE);
|
|
if(lua_istable(L, -1)){
|
|
int table1 = lua_gettop(L);
|
|
lua_pushnil(L);
|
|
int rowcount = 0;
|
|
while(lua_next(L, table1) != 0){
|
|
int colcount = 0;
|
|
// key at index -2 and value at index -1
|
|
luaL_checktype(L, -1, LUA_TTABLE);
|
|
if(lua_istable(L, -1)){
|
|
int table2 = lua_gettop(L);
|
|
lua_pushnil(L);
|
|
while(lua_next(L, table2) != 0){
|
|
// key at index -2 and value at index -1
|
|
luaL_checktype(L, -1, LUA_TSTRING);
|
|
input.push_back(lua_tostring(L, -1));
|
|
// removes value, keeps key for next iteration
|
|
lua_pop(L, 1);
|
|
colcount++;
|
|
}
|
|
}
|
|
if(rowcount == 0){
|
|
width = colcount;
|
|
} else {
|
|
if(colcount != width){
|
|
script_error(L, "error: %s\n", "Invalid crafting recipe");
|
|
}
|
|
}
|
|
// removes value, keeps key for next iteration
|
|
lua_pop(L, 1);
|
|
rowcount++;
|
|
}
|
|
}
|
|
lua_pop(L, 1);
|
|
|
|
CraftDefinition def(output, width, input);
|
|
craftdef->registerCraft(def);
|
|
|
|
return 0; /* number of results */
|
|
}
|
|
|
|
static int register_lua_callback(lua_State *L, const char *tablename)
|
|
{
|
|
luaL_checktype(L, 1, LUA_TFUNCTION);
|
|
|
|
lua_getglobal(L, "table");
|
|
lua_getfield(L, -1, "insert");
|
|
int table_insert = lua_gettop(L);
|
|
// Get minetest.registered_globalsteps
|
|
lua_getglobal(L, "minetest");
|
|
lua_getfield(L, -1, tablename);
|
|
luaL_checktype(L, -1, LUA_TTABLE);
|
|
int registered = lua_gettop(L);
|
|
// table.insert(registered_globalsteps, func)
|
|
lua_pushvalue(L, table_insert);
|
|
lua_pushvalue(L, registered);
|
|
lua_pushvalue(L, 1); // push function from argument 1
|
|
// Call insert
|
|
if(lua_pcall(L, 2, 0, 0))
|
|
script_error(L, "error: %s\n", lua_tostring(L, -1));
|
|
|
|
return 0; /* number of results */
|
|
}
|
|
|
|
// Register a global step function
|
|
// register_globalstep(function)
|
|
static int l_register_globalstep(lua_State *L)
|
|
{
|
|
infostream<<"register_globalstep"<<std::endl;
|
|
return register_lua_callback(L, "registered_globalsteps");
|
|
}
|
|
|
|
// register_on_placenode(function)
|
|
static int l_register_on_placenode(lua_State *L)
|
|
{
|
|
infostream<<"register_on_placenode"<<std::endl;
|
|
return register_lua_callback(L, "registered_on_placenodes");
|
|
}
|
|
|
|
// register_on_dignode(function)
|
|
static int l_register_on_dignode(lua_State *L)
|
|
{
|
|
infostream<<"register_on_dignode"<<std::endl;
|
|
return register_lua_callback(L, "registered_on_dignodes");
|
|
}
|
|
|
|
// register_on_punchnode(function)
|
|
static int l_register_on_punchnode(lua_State *L)
|
|
{
|
|
infostream<<"register_on_punchnode"<<std::endl;
|
|
return register_lua_callback(L, "registered_on_punchnodes");
|
|
}
|
|
|
|
static const struct luaL_Reg minetest_f [] = {
|
|
{"register_entity", l_register_entity},
|
|
{"register_tool", l_register_tool},
|
|
{"register_node", l_register_node},
|
|
{"register_craft", l_register_craft},
|
|
{"register_globalstep", l_register_globalstep},
|
|
{"register_on_placenode", l_register_on_placenode},
|
|
{"register_on_dignode", l_register_on_dignode},
|
|
{"register_on_punchnode", l_register_on_punchnode},
|
|
{NULL, NULL}
|
|
};
|
|
|
|
/*
|
|
LuaEntity functions
|
|
*/
|
|
|
|
static const struct luaL_Reg minetest_entity_m [] = {
|
|
{NULL, NULL}
|
|
};
|
|
|
|
/*
|
|
Getters for stuff in main tables
|
|
*/
|
|
|
|
static void objectref_get(lua_State *L, u16 id)
|
|
{
|
|
// Get minetest.object_refs[i]
|
|
lua_getglobal(L, "minetest");
|
|
lua_getfield(L, -1, "object_refs");
|
|
luaL_checktype(L, -1, LUA_TTABLE);
|
|
lua_pushnumber(L, id);
|
|
lua_gettable(L, -2);
|
|
lua_remove(L, -2); // object_refs
|
|
lua_remove(L, -2); // minetest
|
|
}
|
|
|
|
static void luaentity_get(lua_State *L, u16 id)
|
|
{
|
|
// Get minetest.luaentities[i]
|
|
lua_getglobal(L, "minetest");
|
|
lua_getfield(L, -1, "luaentities");
|
|
luaL_checktype(L, -1, LUA_TTABLE);
|
|
lua_pushnumber(L, id);
|
|
lua_gettable(L, -2);
|
|
lua_remove(L, -2); // luaentities
|
|
lua_remove(L, -2); // minetest
|
|
}
|
|
|
|
/*
|
|
Reference objects
|
|
*/
|
|
#define method(class, name) {#name, class::l_##name}
|
|
|
|
class EnvRef
|
|
{
|
|
private:
|
|
ServerEnvironment *m_env;
|
|
|
|
static const char className[];
|
|
static const luaL_reg methods[];
|
|
|
|
static EnvRef *checkobject(lua_State *L, int narg)
|
|
{
|
|
luaL_checktype(L, narg, LUA_TUSERDATA);
|
|
void *ud = luaL_checkudata(L, narg, className);
|
|
if(!ud) luaL_typerror(L, narg, className);
|
|
return *(EnvRef**)ud; // unbox pointer
|
|
}
|
|
|
|
// Exported functions
|
|
|
|
// EnvRef:add_node(pos, node)
|
|
// pos = {x=num, y=num, z=num}
|
|
static int l_add_node(lua_State *L)
|
|
{
|
|
infostream<<"EnvRef::l_add_node()"<<std::endl;
|
|
EnvRef *o = checkobject(L, 1);
|
|
ServerEnvironment *env = o->m_env;
|
|
if(env == NULL) return 0;
|
|
// pos
|
|
v3s16 pos = readpos(L, 2);
|
|
// content
|
|
MapNode n = readnode(L, 3, env->getGameDef()->ndef());
|
|
// Do it
|
|
bool succeeded = env->getMap().addNodeWithEvent(pos, n);
|
|
lua_pushboolean(L, succeeded);
|
|
return 1;
|
|
}
|
|
|
|
// EnvRef:remove_node(pos)
|
|
// pos = {x=num, y=num, z=num}
|
|
static int l_remove_node(lua_State *L)
|
|
{
|
|
infostream<<"EnvRef::l_remove_node()"<<std::endl;
|
|
EnvRef *o = checkobject(L, 1);
|
|
ServerEnvironment *env = o->m_env;
|
|
if(env == NULL) return 0;
|
|
// pos
|
|
v3s16 pos = readpos(L, 2);
|
|
// Do it
|
|
bool succeeded = env->getMap().removeNodeWithEvent(pos);
|
|
lua_pushboolean(L, succeeded);
|
|
return 1;
|
|
}
|
|
|
|
// EnvRef:get_node(pos)
|
|
// pos = {x=num, y=num, z=num}
|
|
static int l_get_node(lua_State *L)
|
|
{
|
|
infostream<<"EnvRef::l_get_node()"<<std::endl;
|
|
EnvRef *o = checkobject(L, 1);
|
|
ServerEnvironment *env = o->m_env;
|
|
if(env == NULL) return 0;
|
|
// pos
|
|
v3s16 pos = readpos(L, 2);
|
|
// Do it
|
|
MapNode n = env->getMap().getNodeNoEx(pos);
|
|
// Return node
|
|
pushnode(L, n, env->getGameDef()->ndef());
|
|
return 1;
|
|
}
|
|
|
|
// EnvRef:add_luaentity(pos, entityname)
|
|
// pos = {x=num, y=num, z=num}
|
|
static int l_add_luaentity(lua_State *L)
|
|
{
|
|
infostream<<"EnvRef::l_add_luaentity()"<<std::endl;
|
|
EnvRef *o = checkobject(L, 1);
|
|
ServerEnvironment *env = o->m_env;
|
|
if(env == NULL) return 0;
|
|
// pos
|
|
v3f pos = readFloatPos(L, 2);
|
|
// content
|
|
const char *name = lua_tostring(L, 3);
|
|
// Do it
|
|
ServerActiveObject *obj = new LuaEntitySAO(env, pos, name, "");
|
|
env->addActiveObject(obj);
|
|
return 0;
|
|
}
|
|
|
|
static int gc_object(lua_State *L) {
|
|
EnvRef *o = *(EnvRef **)(lua_touserdata(L, 1));
|
|
delete o;
|
|
return 0;
|
|
}
|
|
|
|
public:
|
|
EnvRef(ServerEnvironment *env):
|
|
m_env(env)
|
|
{
|
|
infostream<<"EnvRef created"<<std::endl;
|
|
}
|
|
|
|
~EnvRef()
|
|
{
|
|
infostream<<"EnvRef destructing"<<std::endl;
|
|
}
|
|
|
|
// Creates an EnvRef and leaves it on top of stack
|
|
// Not callable from Lua; all references are created on the C side.
|
|
static void create(lua_State *L, ServerEnvironment *env)
|
|
{
|
|
EnvRef *o = new EnvRef(env);
|
|
//infostream<<"EnvRef::create: o="<<o<<std::endl;
|
|
*(void **)(lua_newuserdata(L, sizeof(void *))) = o;
|
|
luaL_getmetatable(L, className);
|
|
lua_setmetatable(L, -2);
|
|
}
|
|
|
|
static void set_null(lua_State *L)
|
|
{
|
|
EnvRef *o = checkobject(L, -1);
|
|
o->m_env = NULL;
|
|
}
|
|
|
|
static void 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
|
|
|
|
// Cannot be created from Lua
|
|
//lua_register(L, className, create_object);
|
|
}
|
|
};
|
|
const char EnvRef::className[] = "EnvRef";
|
|
const luaL_reg EnvRef::methods[] = {
|
|
method(EnvRef, add_node),
|
|
method(EnvRef, remove_node),
|
|
method(EnvRef, get_node),
|
|
method(EnvRef, add_luaentity),
|
|
{0,0}
|
|
};
|
|
|
|
class ObjectRef
|
|
{
|
|
private:
|
|
ServerActiveObject *m_object;
|
|
|
|
static const char className[];
|
|
static const luaL_reg methods[];
|
|
|
|
static ObjectRef *checkobject(lua_State *L, int narg)
|
|
{
|
|
luaL_checktype(L, narg, LUA_TUSERDATA);
|
|
void *ud = luaL_checkudata(L, narg, className);
|
|
if(!ud) luaL_typerror(L, narg, className);
|
|
return *(ObjectRef**)ud; // unbox pointer
|
|
}
|
|
|
|
static ServerActiveObject* getobject(ObjectRef *ref)
|
|
{
|
|
ServerActiveObject *co = ref->m_object;
|
|
return co;
|
|
}
|
|
|
|
static LuaEntitySAO* getluaobject(ObjectRef *ref)
|
|
{
|
|
ServerActiveObject *obj = getobject(ref);
|
|
if(obj == NULL)
|
|
return NULL;
|
|
if(obj->getType() != ACTIVEOBJECT_TYPE_LUAENTITY)
|
|
return NULL;
|
|
return (LuaEntitySAO*)obj;
|
|
}
|
|
|
|
// Exported functions
|
|
|
|
// garbage collector
|
|
static int gc_object(lua_State *L) {
|
|
ObjectRef *o = *(ObjectRef **)(lua_touserdata(L, 1));
|
|
//infostream<<"ObjectRef::gc_object: o="<<o<<std::endl;
|
|
delete o;
|
|
return 0;
|
|
}
|
|
|
|
// remove(self)
|
|
static int l_remove(lua_State *L)
|
|
{
|
|
ObjectRef *ref = checkobject(L, 1);
|
|
ServerActiveObject *co = getobject(ref);
|
|
if(co == NULL) return 0;
|
|
infostream<<"ObjectRef::l_remove(): id="<<co->getId()<<std::endl;
|
|
co->m_removed = true;
|
|
return 0;
|
|
}
|
|
|
|
// getpos(self)
|
|
// returns: {x=num, y=num, z=num}
|
|
static int l_getpos(lua_State *L)
|
|
{
|
|
ObjectRef *ref = checkobject(L, 1);
|
|
ServerActiveObject *co = getobject(ref);
|
|
if(co == NULL) return 0;
|
|
v3f pos = co->getBasePosition() / BS;
|
|
lua_newtable(L);
|
|
lua_pushnumber(L, pos.X);
|
|
lua_setfield(L, -2, "x");
|
|
lua_pushnumber(L, pos.Y);
|
|
lua_setfield(L, -2, "y");
|
|
lua_pushnumber(L, pos.Z);
|
|
lua_setfield(L, -2, "z");
|
|
return 1;
|
|
}
|
|
|
|
// setpos(self, pos)
|
|
static int l_setpos(lua_State *L)
|
|
{
|
|
ObjectRef *ref = checkobject(L, 1);
|
|
//LuaEntitySAO *co = getluaobject(ref);
|
|
ServerActiveObject *co = getobject(ref);
|
|
if(co == NULL) return 0;
|
|
// pos
|
|
v3f pos = readFloatPos(L, 2);
|
|
// Do it
|
|
co->setPos(pos);
|
|
return 0;
|
|
}
|
|
|
|
// moveto(self, pos, continuous=false)
|
|
static int l_moveto(lua_State *L)
|
|
{
|
|
ObjectRef *ref = checkobject(L, 1);
|
|
//LuaEntitySAO *co = getluaobject(ref);
|
|
ServerActiveObject *co = getobject(ref);
|
|
if(co == NULL) return 0;
|
|
// pos
|
|
v3f pos = readFloatPos(L, 2);
|
|
// continuous
|
|
bool continuous = lua_toboolean(L, 3);
|
|
// Do it
|
|
co->moveTo(pos, continuous);
|
|
return 0;
|
|
}
|
|
|
|
// setvelocity(self, velocity)
|
|
static int l_setvelocity(lua_State *L)
|
|
{
|
|
ObjectRef *ref = checkobject(L, 1);
|
|
LuaEntitySAO *co = getluaobject(ref);
|
|
if(co == NULL) return 0;
|
|
// pos
|
|
v3f pos = readFloatPos(L, 2);
|
|
// Do it
|
|
co->setVelocity(pos);
|
|
return 0;
|
|
}
|
|
|
|
// setacceleration(self, acceleration)
|
|
static int l_setacceleration(lua_State *L)
|
|
{
|
|
ObjectRef *ref = checkobject(L, 1);
|
|
LuaEntitySAO *co = getluaobject(ref);
|
|
if(co == NULL) return 0;
|
|
// pos
|
|
v3f pos = readFloatPos(L, 2);
|
|
// Do it
|
|
co->setAcceleration(pos);
|
|
return 0;
|
|
}
|
|
|
|
// add_to_inventory(self, itemstring)
|
|
// returns: true if item was added, false otherwise
|
|
static int l_add_to_inventory(lua_State *L)
|
|
{
|
|
ObjectRef *ref = checkobject(L, 1);
|
|
luaL_checkstring(L, 2);
|
|
ServerActiveObject *co = getobject(ref);
|
|
if(co == NULL) return 0;
|
|
// itemstring
|
|
const char *itemstring = lua_tostring(L, 2);
|
|
infostream<<"ObjectRef::l_add_to_inventory(): id="<<co->getId()
|
|
<<" itemstring=\""<<itemstring<<"\""<<std::endl;
|
|
// Do it
|
|
std::istringstream is(itemstring, std::ios::binary);
|
|
ServerEnvironment *env = co->getEnv();
|
|
assert(env);
|
|
IGameDef *gamedef = env->getGameDef();
|
|
InventoryItem *item = InventoryItem::deSerialize(is, gamedef);
|
|
infostream<<"item="<<env<<std::endl;
|
|
bool fits = co->addToInventory(item);
|
|
// Return
|
|
lua_pushboolean(L, fits);
|
|
return 1;
|
|
}
|
|
|
|
public:
|
|
ObjectRef(ServerActiveObject *object):
|
|
m_object(object)
|
|
{
|
|
//infostream<<"ObjectRef created for id="<<m_object->getId()<<std::endl;
|
|
}
|
|
|
|
~ObjectRef()
|
|
{
|
|
/*if(m_object)
|
|
infostream<<"ObjectRef destructing for id="
|
|
<<m_object->getId()<<std::endl;
|
|
else
|
|
infostream<<"ObjectRef destructing for id=unknown"<<std::endl;*/
|
|
}
|
|
|
|
// Creates an ObjectRef and leaves it on top of stack
|
|
// Not callable from Lua; all references are created on the C side.
|
|
static void create(lua_State *L, ServerActiveObject *object)
|
|
{
|
|
ObjectRef *o = new ObjectRef(object);
|
|
//infostream<<"ObjectRef::create: o="<<o<<std::endl;
|
|
*(void **)(lua_newuserdata(L, sizeof(void *))) = o;
|
|
luaL_getmetatable(L, className);
|
|
lua_setmetatable(L, -2);
|
|
}
|
|
|
|
static void set_null(lua_State *L)
|
|
{
|
|
ObjectRef *o = checkobject(L, -1);
|
|
o->m_object = NULL;
|
|
}
|
|
|
|
static void 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
|
|
|
|
// Cannot be created from Lua
|
|
//lua_register(L, className, create_object);
|
|
}
|
|
};
|
|
const char ObjectRef::className[] = "ObjectRef";
|
|
const luaL_reg ObjectRef::methods[] = {
|
|
method(ObjectRef, remove),
|
|
method(ObjectRef, getpos),
|
|
method(ObjectRef, setpos),
|
|
method(ObjectRef, moveto),
|
|
method(ObjectRef, setvelocity),
|
|
method(ObjectRef, setacceleration),
|
|
method(ObjectRef, add_to_inventory),
|
|
{0,0}
|
|
};
|
|
|
|
// Creates a new anonymous reference if id=0
|
|
static void objectref_get_or_create(lua_State *L,
|
|
ServerActiveObject *cobj)
|
|
{
|
|
if(cobj->getId() == 0){
|
|
ObjectRef::create(L, cobj);
|
|
} else {
|
|
objectref_get(L, cobj->getId());
|
|
}
|
|
}
|
|
|
|
/*
|
|
Main export function
|
|
*/
|
|
|
|
void scriptapi_export(lua_State *L, Server *server)
|
|
{
|
|
realitycheck(L);
|
|
assert(lua_checkstack(L, 20));
|
|
infostream<<"scriptapi_export"<<std::endl;
|
|
StackUnroller stack_unroller(L);
|
|
|
|
// Store server as light userdata in registry
|
|
lua_pushlightuserdata(L, server);
|
|
lua_setfield(L, LUA_REGISTRYINDEX, "minetest_server");
|
|
|
|
// Register global functions in table minetest
|
|
lua_newtable(L);
|
|
luaL_register(L, NULL, minetest_f);
|
|
lua_setglobal(L, "minetest");
|
|
|
|
// Get the main minetest table
|
|
lua_getglobal(L, "minetest");
|
|
|
|
// Add tables to minetest
|
|
|
|
/*lua_newtable(L);
|
|
lua_setfield(L, -2, "registered_blocks");*/
|
|
|
|
lua_newtable(L);
|
|
lua_setfield(L, -2, "registered_entities");
|
|
|
|
lua_newtable(L);
|
|
lua_setfield(L, -2, "registered_globalsteps");
|
|
|
|
lua_newtable(L);
|
|
lua_setfield(L, -2, "registered_on_placenodes");
|
|
|
|
lua_newtable(L);
|
|
lua_setfield(L, -2, "registered_on_dignodes");
|
|
|
|
lua_newtable(L);
|
|
lua_setfield(L, -2, "registered_on_punchnodes");
|
|
|
|
lua_newtable(L);
|
|
lua_setfield(L, -2, "object_refs");
|
|
|
|
lua_newtable(L);
|
|
lua_setfield(L, -2, "luaentities");
|
|
|
|
// Create entity prototype
|
|
luaL_newmetatable(L, "minetest.entity");
|
|
// metatable.__index = metatable
|
|
lua_pushvalue(L, -1); // Duplicate metatable
|
|
lua_setfield(L, -2, "__index");
|
|
// Put functions in metatable
|
|
luaL_register(L, NULL, minetest_entity_m);
|
|
// Put other stuff in metatable
|
|
|
|
// Environment C reference
|
|
EnvRef::Register(L);
|
|
|
|
// Object C reference
|
|
ObjectRef::Register(L);
|
|
}
|
|
|
|
void scriptapi_add_environment(lua_State *L, ServerEnvironment *env)
|
|
{
|
|
realitycheck(L);
|
|
assert(lua_checkstack(L, 20));
|
|
infostream<<"scriptapi_add_environment"<<std::endl;
|
|
StackUnroller stack_unroller(L);
|
|
|
|
// Create EnvRef on stack
|
|
EnvRef::create(L, env);
|
|
int envref = lua_gettop(L);
|
|
|
|
// minetest.env = envref
|
|
lua_getglobal(L, "minetest");
|
|
luaL_checktype(L, -1, LUA_TTABLE);
|
|
lua_pushvalue(L, envref);
|
|
lua_setfield(L, -2, "env");
|
|
}
|
|
|
|
#if 0
|
|
// Dump stack top with the dump2 function
|
|
static void dump2(lua_State *L, const char *name)
|
|
{
|
|
// Dump object (debug)
|
|
lua_getglobal(L, "dump2");
|
|
luaL_checktype(L, -1, LUA_TFUNCTION);
|
|
lua_pushvalue(L, -2); // Get previous stack top as first parameter
|
|
lua_pushstring(L, name);
|
|
if(lua_pcall(L, 2, 0, 0))
|
|
script_error(L, "error: %s\n", lua_tostring(L, -1));
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
object_reference
|
|
*/
|
|
|
|
void scriptapi_add_object_reference(lua_State *L, ServerActiveObject *cobj)
|
|
{
|
|
realitycheck(L);
|
|
assert(lua_checkstack(L, 20));
|
|
infostream<<"scriptapi_add_object_reference: id="<<cobj->getId()<<std::endl;
|
|
StackUnroller stack_unroller(L);
|
|
|
|
// Create object on stack
|
|
ObjectRef::create(L, cobj); // Puts ObjectRef (as userdata) on stack
|
|
int object = lua_gettop(L);
|
|
|
|
// Get minetest.object_refs table
|
|
lua_getglobal(L, "minetest");
|
|
lua_getfield(L, -1, "object_refs");
|
|
luaL_checktype(L, -1, LUA_TTABLE);
|
|
int objectstable = lua_gettop(L);
|
|
|
|
// object_refs[id] = object
|
|
lua_pushnumber(L, cobj->getId()); // Push id
|
|
lua_pushvalue(L, object); // Copy object to top of stack
|
|
lua_settable(L, objectstable);
|
|
}
|
|
|
|
void scriptapi_rm_object_reference(lua_State *L, ServerActiveObject *cobj)
|
|
{
|
|
realitycheck(L);
|
|
assert(lua_checkstack(L, 20));
|
|
infostream<<"scriptapi_rm_object_reference: id="<<cobj->getId()<<std::endl;
|
|
StackUnroller stack_unroller(L);
|
|
|
|
// Get minetest.object_refs table
|
|
lua_getglobal(L, "minetest");
|
|
lua_getfield(L, -1, "object_refs");
|
|
luaL_checktype(L, -1, LUA_TTABLE);
|
|
int objectstable = lua_gettop(L);
|
|
|
|
// Get object_refs[id]
|
|
lua_pushnumber(L, cobj->getId()); // Push id
|
|
lua_gettable(L, objectstable);
|
|
// Set object reference to NULL
|
|
ObjectRef::set_null(L);
|
|
lua_pop(L, 1); // pop object
|
|
|
|
// Set object_refs[id] = nil
|
|
lua_pushnumber(L, cobj->getId()); // Push id
|
|
lua_pushnil(L);
|
|
lua_settable(L, objectstable);
|
|
}
|
|
|
|
/*
|
|
environment
|
|
*/
|
|
|
|
void scriptapi_environment_step(lua_State *L, float dtime)
|
|
{
|
|
realitycheck(L);
|
|
assert(lua_checkstack(L, 20));
|
|
//infostream<<"scriptapi_environment_step"<<std::endl;
|
|
StackUnroller stack_unroller(L);
|
|
|
|
// Get minetest.registered_globalsteps
|
|
lua_getglobal(L, "minetest");
|
|
lua_getfield(L, -1, "registered_globalsteps");
|
|
luaL_checktype(L, -1, LUA_TTABLE);
|
|
int table = lua_gettop(L);
|
|
// Foreach
|
|
lua_pushnil(L);
|
|
while(lua_next(L, table) != 0){
|
|
// key at index -2 and value at index -1
|
|
luaL_checktype(L, -1, LUA_TFUNCTION);
|
|
// Call function
|
|
lua_pushnumber(L, dtime);
|
|
if(lua_pcall(L, 1, 0, 0))
|
|
script_error(L, "error: %s\n", lua_tostring(L, -1));
|
|
// value removed, keep key for next iteration
|
|
}
|
|
}
|
|
|
|
void scriptapi_environment_on_placenode(lua_State *L, v3s16 p, MapNode newnode)
|
|
{
|
|
realitycheck(L);
|
|
assert(lua_checkstack(L, 20));
|
|
//infostream<<"scriptapi_environment_on_placenode"<<std::endl;
|
|
StackUnroller stack_unroller(L);
|
|
|
|
// Get server from registry
|
|
lua_getfield(L, LUA_REGISTRYINDEX, "minetest_server");
|
|
Server *server = (Server*)lua_touserdata(L, -1);
|
|
// And get the writable node definition manager from the server
|
|
IWritableNodeDefManager *ndef =
|
|
server->getWritableNodeDefManager();
|
|
|
|
// Get minetest.registered_on_placenodes
|
|
lua_getglobal(L, "minetest");
|
|
lua_getfield(L, -1, "registered_on_placenodes");
|
|
luaL_checktype(L, -1, LUA_TTABLE);
|
|
int table = lua_gettop(L);
|
|
// Foreach
|
|
lua_pushnil(L);
|
|
while(lua_next(L, table) != 0){
|
|
// key at index -2 and value at index -1
|
|
luaL_checktype(L, -1, LUA_TFUNCTION);
|
|
// Call function
|
|
pushpos(L, p);
|
|
pushnode(L, newnode, ndef);
|
|
if(lua_pcall(L, 2, 0, 0))
|
|
script_error(L, "error: %s\n", lua_tostring(L, -1));
|
|
// value removed, keep key for next iteration
|
|
}
|
|
}
|
|
|
|
void scriptapi_environment_on_dignode(lua_State *L, v3s16 p, MapNode oldnode)
|
|
{
|
|
realitycheck(L);
|
|
assert(lua_checkstack(L, 20));
|
|
//infostream<<"scriptapi_environment_on_dignode"<<std::endl;
|
|
StackUnroller stack_unroller(L);
|
|
|
|
// Get server from registry
|
|
lua_getfield(L, LUA_REGISTRYINDEX, "minetest_server");
|
|
Server *server = (Server*)lua_touserdata(L, -1);
|
|
// And get the writable node definition manager from the server
|
|
IWritableNodeDefManager *ndef =
|
|
server->getWritableNodeDefManager();
|
|
|
|
// Get minetest.registered_on_dignodes
|
|
lua_getglobal(L, "minetest");
|
|
lua_getfield(L, -1, "registered_on_dignodes");
|
|
luaL_checktype(L, -1, LUA_TTABLE);
|
|
int table = lua_gettop(L);
|
|
// Foreach
|
|
lua_pushnil(L);
|
|
while(lua_next(L, table) != 0){
|
|
// key at index -2 and value at index -1
|
|
luaL_checktype(L, -1, LUA_TFUNCTION);
|
|
// Call function
|
|
pushpos(L, p);
|
|
pushnode(L, oldnode, ndef);
|
|
if(lua_pcall(L, 2, 0, 0))
|
|
script_error(L, "error: %s\n", lua_tostring(L, -1));
|
|
// value removed, keep key for next iteration
|
|
}
|
|
}
|
|
|
|
void scriptapi_environment_on_punchnode(lua_State *L, v3s16 p, MapNode oldnode)
|
|
{
|
|
realitycheck(L);
|
|
assert(lua_checkstack(L, 20));
|
|
//infostream<<"scriptapi_environment_on_punchnode"<<std::endl;
|
|
StackUnroller stack_unroller(L);
|
|
|
|
// Get server from registry
|
|
lua_getfield(L, LUA_REGISTRYINDEX, "minetest_server");
|
|
Server *server = (Server*)lua_touserdata(L, -1);
|
|
// And get the writable node definition manager from the server
|
|
IWritableNodeDefManager *ndef =
|
|
server->getWritableNodeDefManager();
|
|
|
|
// Get minetest.registered_on_punchnodes
|
|
lua_getglobal(L, "minetest");
|
|
lua_getfield(L, -1, "registered_on_punchnodes");
|
|
luaL_checktype(L, -1, LUA_TTABLE);
|
|
int table = lua_gettop(L);
|
|
// Foreach
|
|
lua_pushnil(L);
|
|
while(lua_next(L, table) != 0){
|
|
// key at index -2 and value at index -1
|
|
luaL_checktype(L, -1, LUA_TFUNCTION);
|
|
// Call function
|
|
pushpos(L, p);
|
|
pushnode(L, oldnode, ndef);
|
|
if(lua_pcall(L, 2, 0, 0))
|
|
script_error(L, "error: %s\n", lua_tostring(L, -1));
|
|
// value removed, keep key for next iteration
|
|
}
|
|
}
|
|
|
|
/*
|
|
luaentity
|
|
*/
|
|
|
|
bool scriptapi_luaentity_add(lua_State *L, u16 id, const char *name,
|
|
const std::string &staticdata)
|
|
{
|
|
realitycheck(L);
|
|
assert(lua_checkstack(L, 20));
|
|
infostream<<"scriptapi_luaentity_add: id="<<id<<" name=\""
|
|
<<name<<"\""<<std::endl;
|
|
StackUnroller stack_unroller(L);
|
|
|
|
// Get minetest.registered_entities[name]
|
|
lua_getglobal(L, "minetest");
|
|
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
|
|
objectref_get(L, id);
|
|
luaL_checktype(L, -1, LUA_TUSERDATA);
|
|
if(!luaL_checkudata(L, -1, "ObjectRef"))
|
|
luaL_typerror(L, -1, "ObjectRef");
|
|
lua_setfield(L, -2, "object");
|
|
|
|
// minetest.luaentities[id] = object
|
|
lua_getglobal(L, "minetest");
|
|
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);
|
|
|
|
// Get on_activate function
|
|
lua_pushvalue(L, object);
|
|
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());
|
|
// Call with 2 arguments, 0 results
|
|
if(lua_pcall(L, 2, 0, 0))
|
|
script_error(L, "error running function %s:on_activate: %s\n",
|
|
name, lua_tostring(L, -1));
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void scriptapi_luaentity_rm(lua_State *L, u16 id)
|
|
{
|
|
realitycheck(L);
|
|
assert(lua_checkstack(L, 20));
|
|
infostream<<"scriptapi_luaentity_rm: id="<<id<<std::endl;
|
|
|
|
// Get minetest.luaentities table
|
|
lua_getglobal(L, "minetest");
|
|
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, minetest
|
|
}
|
|
|
|
std::string scriptapi_luaentity_get_staticdata(lua_State *L, u16 id)
|
|
{
|
|
realitycheck(L);
|
|
assert(lua_checkstack(L, 20));
|
|
infostream<<"scriptapi_luaentity_get_staticdata: id="<<id<<std::endl;
|
|
StackUnroller stack_unroller(L);
|
|
|
|
// Get minetest.luaentities[id]
|
|
luaentity_get(L, id);
|
|
int object = lua_gettop(L);
|
|
|
|
// Get get_staticdata function
|
|
lua_pushvalue(L, object);
|
|
lua_getfield(L, -1, "get_staticdata");
|
|
if(lua_isnil(L, -1))
|
|
return "";
|
|
|
|
luaL_checktype(L, -1, LUA_TFUNCTION);
|
|
lua_pushvalue(L, object); // self
|
|
// Call with 1 arguments, 1 results
|
|
if(lua_pcall(L, 1, 1, 0))
|
|
script_error(L, "error running function get_staticdata: %s\n",
|
|
lua_tostring(L, -1));
|
|
|
|
size_t len=0;
|
|
const char *s = lua_tolstring(L, -1, &len);
|
|
return std::string(s, len);
|
|
}
|
|
|
|
void scriptapi_luaentity_get_properties(lua_State *L, u16 id,
|
|
LuaEntityProperties *prop)
|
|
{
|
|
realitycheck(L);
|
|
assert(lua_checkstack(L, 20));
|
|
infostream<<"scriptapi_luaentity_get_properties: id="<<id<<std::endl;
|
|
StackUnroller stack_unroller(L);
|
|
|
|
// Get minetest.luaentities[id]
|
|
luaentity_get(L, id);
|
|
//int object = lua_gettop(L);
|
|
|
|
lua_getfield(L, -1, "physical");
|
|
if(lua_isboolean(L, -1))
|
|
prop->physical = lua_toboolean(L, -1);
|
|
lua_pop(L, 1);
|
|
|
|
lua_getfield(L, -1, "weight");
|
|
prop->weight = lua_tonumber(L, -1);
|
|
lua_pop(L, 1);
|
|
|
|
lua_getfield(L, -1, "collisionbox");
|
|
if(lua_istable(L, -1)){
|
|
lua_rawgeti(L, -1, 1);
|
|
prop->collisionbox.MinEdge.X = lua_tonumber(L, -1);
|
|
lua_pop(L, 1);
|
|
lua_rawgeti(L, -1, 2);
|
|
prop->collisionbox.MinEdge.Y = lua_tonumber(L, -1);
|
|
lua_pop(L, 1);
|
|
lua_rawgeti(L, -1, 3);
|
|
prop->collisionbox.MinEdge.Z = lua_tonumber(L, -1);
|
|
lua_pop(L, 1);
|
|
lua_rawgeti(L, -1, 4);
|
|
prop->collisionbox.MaxEdge.X = lua_tonumber(L, -1);
|
|
lua_pop(L, 1);
|
|
lua_rawgeti(L, -1, 5);
|
|
prop->collisionbox.MaxEdge.Y = lua_tonumber(L, -1);
|
|
lua_pop(L, 1);
|
|
lua_rawgeti(L, -1, 6);
|
|
prop->collisionbox.MaxEdge.Z = lua_tonumber(L, -1);
|
|
lua_pop(L, 1);
|
|
}
|
|
lua_pop(L, 1);
|
|
|
|
lua_getfield(L, -1, "visual");
|
|
if(lua_isstring(L, -1))
|
|
prop->visual = lua_tostring(L, -1);
|
|
lua_pop(L, 1);
|
|
|
|
lua_getfield(L, -1, "textures");
|
|
if(lua_istable(L, -1)){
|
|
prop->textures.clear();
|
|
int table = lua_gettop(L);
|
|
lua_pushnil(L);
|
|
while(lua_next(L, table) != 0){
|
|
// key at index -2 and value at index -1
|
|
if(lua_isstring(L, -1))
|
|
prop->textures.push_back(lua_tostring(L, -1));
|
|
else
|
|
prop->textures.push_back("");
|
|
// removes value, keeps key for next iteration
|
|
lua_pop(L, 1);
|
|
}
|
|
}
|
|
lua_pop(L, 1);
|
|
|
|
}
|
|
|
|
void scriptapi_luaentity_step(lua_State *L, u16 id, float dtime)
|
|
{
|
|
realitycheck(L);
|
|
assert(lua_checkstack(L, 20));
|
|
//infostream<<"scriptapi_luaentity_step: id="<<id<<std::endl;
|
|
StackUnroller stack_unroller(L);
|
|
|
|
// Get minetest.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))
|
|
return;
|
|
luaL_checktype(L, -1, LUA_TFUNCTION);
|
|
lua_pushvalue(L, object); // self
|
|
lua_pushnumber(L, dtime); // dtime
|
|
// Call with 2 arguments, 0 results
|
|
if(lua_pcall(L, 2, 0, 0))
|
|
script_error(L, "error running function 'on_step': %s\n", lua_tostring(L, -1));
|
|
}
|
|
|
|
// Calls entity:on_punch(ObjectRef puncher)
|
|
void scriptapi_luaentity_punch(lua_State *L, u16 id,
|
|
ServerActiveObject *puncher)
|
|
{
|
|
realitycheck(L);
|
|
assert(lua_checkstack(L, 20));
|
|
//infostream<<"scriptapi_luaentity_step: id="<<id<<std::endl;
|
|
StackUnroller stack_unroller(L);
|
|
|
|
// Get minetest.luaentities[id]
|
|
luaentity_get(L, id);
|
|
int object = lua_gettop(L);
|
|
// State: object is at top of stack
|
|
// Get function
|
|
lua_getfield(L, -1, "on_punch");
|
|
if(lua_isnil(L, -1))
|
|
return;
|
|
luaL_checktype(L, -1, LUA_TFUNCTION);
|
|
lua_pushvalue(L, object); // self
|
|
objectref_get_or_create(L, puncher); // Clicker reference
|
|
// Call with 2 arguments, 0 results
|
|
if(lua_pcall(L, 2, 0, 0))
|
|
script_error(L, "error running function 'on_punch': %s\n", lua_tostring(L, -1));
|
|
}
|
|
|
|
// Calls entity:on_rightclick(ObjectRef clicker)
|
|
void scriptapi_luaentity_rightclick(lua_State *L, u16 id,
|
|
ServerActiveObject *clicker)
|
|
{
|
|
realitycheck(L);
|
|
assert(lua_checkstack(L, 20));
|
|
//infostream<<"scriptapi_luaentity_step: id="<<id<<std::endl;
|
|
StackUnroller stack_unroller(L);
|
|
|
|
// Get minetest.luaentities[id]
|
|
luaentity_get(L, id);
|
|
int object = lua_gettop(L);
|
|
// State: object is at top of stack
|
|
// Get function
|
|
lua_getfield(L, -1, "on_rightclick");
|
|
if(lua_isnil(L, -1))
|
|
return;
|
|
luaL_checktype(L, -1, LUA_TFUNCTION);
|
|
lua_pushvalue(L, object); // self
|
|
objectref_get_or_create(L, clicker); // Clicker reference
|
|
// Call with 2 arguments, 0 results
|
|
if(lua_pcall(L, 2, 0, 0))
|
|
script_error(L, "error running function 'on_rightclick': %s\n", lua_tostring(L, -1));
|
|
}
|
|
|