]> git.lizzy.rs Git - dragonfireclient.git/blobdiff - src/scriptapi.cpp
Make added nodes give the corresponding NodeItem as of now (placeholder code)
[dragonfireclient.git] / src / scriptapi.cpp
index 2704f6c433f90c42b71c2676fbf4eb8bf171dcf8..a18c144d3b8837e6cfc802ab2c9db4898725cc73 100644 (file)
@@ -33,6 +33,35 @@ extern "C" {
 #include "serverobject.h"
 #include "script.h"
 //#include "luna.h"
+#include "luaentity_common.h"
+#include "content_sao.h" // For LuaEntitySAO
+#include "tooldef.h"
+#include "nodedef.h"
+#include "craftdef.h"
+
+/*
+TODO:
+- Node definition
+- Random node triggers (like grass growth)
+- Deterministic node triggers (like falling sand)
+- Object visual client-side stuff
+       - Blink effect
+       - Spritesheets and animation
+- LuaNodeMetadata
+       blockdef.metadata_type =
+               ""
+               "sign"
+               "furnace"
+               "chest"
+               "locked_chest"
+               "lua"
+       - Stores an inventory and stuff in a Settings object
+       meta.inventory_add_list("main")
+       blockdef.on_inventory_modified
+       meta.set("owner", playername)
+       meta.get("owner")
+- Item definition (actually, only CraftItem)
+*/
 
 static void stackDump(lua_State *L, std::ostream &o)
 {
@@ -94,13 +123,90 @@ class StackUnroller
        }
 };
 
+static v3f readFloatPos(lua_State *L, int index)
+{
+       v3f pos;
+       luaL_checktype(L, index, LUA_TTABLE);
+       lua_getfield(L, index, "x");
+       pos.X = lua_tonumber(L, -1);
+       lua_pop(L, 1);
+       lua_getfield(L, index, "y");
+       pos.Y = lua_tonumber(L, -1);
+       lua_pop(L, 1);
+       lua_getfield(L, index, "z");
+       pos.Z = lua_tonumber(L, -1);
+       lua_pop(L, 1);
+       pos *= BS; // Scale to internal format
+       return pos;
+}
+
+static void pushpos(lua_State *L, v3s16 p)
+{
+       lua_newtable(L);
+       lua_pushnumber(L, p.X);
+       lua_setfield(L, -2, "x");
+       lua_pushnumber(L, p.Y);
+       lua_setfield(L, -2, "y");
+       lua_pushnumber(L, p.Z);
+       lua_setfield(L, -2, "z");
+}
+
+static v3s16 readpos(lua_State *L, int index)
+{
+       v3s16 p;
+       lua_getfield(L, index, "x");
+       p.X = lua_tonumber(L, -1);
+       lua_getfield(L, index, "y");
+       p.Y = lua_tonumber(L, -1);
+       lua_getfield(L, index, "z");
+       p.Z = lua_tonumber(L, -1);
+       return p;
+}
+
+static void pushnode(lua_State *L, const MapNode &n, INodeDefManager *ndef)
+{
+       lua_newtable(L);
+       lua_pushstring(L, ndef->get(n).name.c_str());
+       lua_setfield(L, -2, "name");
+       lua_pushnumber(L, n.getParam1());
+       lua_setfield(L, -2, "param1");
+       lua_pushnumber(L, n.getParam2());
+       lua_setfield(L, -2, "param2");
+}
+
+static MapNode readnode(lua_State *L, int index, INodeDefManager *ndef)
+{
+       lua_getfield(L, index, "name");
+       const char *name = lua_tostring(L, -1);
+       lua_pop(L, 1);
+       u8 param1;
+       lua_getfield(L, index, "param1");
+       if(lua_isnil(L, -1))
+               param1 = 0;
+       else
+               param1 = lua_tonumber(L, -1);
+       lua_pop(L, 1);
+       u8 param2;
+       lua_getfield(L, index, "param2");
+       if(lua_isnil(L, -1))
+               param2 = 0;
+       else
+               param2 = lua_tonumber(L, -1);
+       lua_pop(L, 1);
+       return MapNode(ndef, name, param1, param2);
+}
+
+/*
+       Global functions
+*/
+
 // Register new object prototype
 // register_entity(name, prototype)
 static int l_register_entity(lua_State *L)
 {
        const char *name = luaL_checkstring(L, 1);
-       luaL_checktype(L, 2, LUA_TTABLE);
        infostream<<"register_entity: "<<name<<std::endl;
+       luaL_checktype(L, 2, LUA_TTABLE);
 
        // Get minetest.registered_entities
        lua_getglobal(L, "minetest");
@@ -128,41 +234,319 @@ static int l_register_entity(lua_State *L)
        return 0; /* number of results */
 }
 
-#if 0
-static int l_new_entity(lua_State *L)
+// register_tool(name, {lots of stuff})
+static int l_register_tool(lua_State *L)
 {
-       /* o = o or {}
-          setmetatable(o, self)
-          self.__index = self
-          return o */
-       if(lua_isnil(L, -1))
-               lua_newtable(L);
+       const char *name = luaL_checkstring(L, 1);
+       infostream<<"register_tool: "<<name<<std::endl;
+       luaL_checktype(L, 2, LUA_TTABLE);
+       int table = 2;
+
+       // Get server from registry
+       lua_getfield(L, LUA_REGISTRYINDEX, "minetest_server");
+       Server *server = (Server*)lua_touserdata(L, -1);
+       // And get the writable tool definition manager from the server
+       IWritableToolDefManager *tooldef =
+                       server->getWritableToolDefManager();
+       
+       ToolDefinition def;
+
+       lua_getfield(L, table, "image");
+       if(lua_isstring(L, -1))
+               def.imagename = lua_tostring(L, -1);
+       lua_pop(L, 1);
+       
+       lua_getfield(L, table, "basetime");
+       def.properties.basetime = lua_tonumber(L, -1);
+       lua_pop(L, 1);
+
+       lua_getfield(L, table, "dt_weight");
+       def.properties.dt_weight = lua_tonumber(L, -1);
+       lua_pop(L, 1);
+
+       lua_getfield(L, table, "dt_crackiness");
+       def.properties.dt_crackiness = lua_tonumber(L, -1);
+       lua_pop(L, 1);
+
+       lua_getfield(L, table, "dt_crumbliness");
+       def.properties.dt_crumbliness = lua_tonumber(L, -1);
+       lua_pop(L, 1);
+
+       lua_getfield(L, table, "dt_cuttability");
+       def.properties.dt_cuttability = lua_tonumber(L, -1);
+       lua_pop(L, 1);
+
+       lua_getfield(L, table, "basedurability");
+       def.properties.basedurability = lua_tonumber(L, -1);
+       lua_pop(L, 1);
+
+       lua_getfield(L, table, "dd_weight");
+       def.properties.dd_weight = lua_tonumber(L, -1);
+       lua_pop(L, 1);
+
+       lua_getfield(L, table, "dd_crackiness");
+       def.properties.dd_crackiness = lua_tonumber(L, -1);
+       lua_pop(L, 1);
+
+       lua_getfield(L, table, "dd_crumbliness");
+       def.properties.dd_crumbliness = lua_tonumber(L, -1);
+       lua_pop(L, 1);
+
+       lua_getfield(L, table, "dd_cuttability");
+       def.properties.dd_cuttability = lua_tonumber(L, -1);
+       lua_pop(L, 1);
+
+       tooldef->registerTool(name, def);
+       return 0; /* number of results */
+}
+
+// register_node(name, {lots of stuff})
+static int l_register_node(lua_State *L)
+{
+       const char *name = luaL_checkstring(L, 1);
+       infostream<<"register_node: "<<name<<std::endl;
+       luaL_checktype(L, 2, LUA_TTABLE);
+       int table0 = 2;
+
+       // 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 *nodedef =
+                       server->getWritableNodeDefManager();
+       
+       ContentFeatures f;
+       f.name = name;
+
+       lua_getfield(L, table0, "tile_images");
+       if(lua_istable(L, -1)){
+               int table = lua_gettop(L);
+               lua_pushnil(L);
+               int i = 0;
+               while(lua_next(L, table) != 0){
+                       // key at index -2 and value at index -1
+                       if(lua_isstring(L, -1))
+                               f.tname_tiles[i] = lua_tostring(L, -1);
+                       else
+                               f.tname_tiles[i] = "";
+                       // removes value, keeps key for next iteration
+                       lua_pop(L, 1);
+                       i++;
+                       if(i==6){
+                               lua_pop(L, 1);
+                               break;
+                       }
+               }
+       }
+       lua_pop(L, 1);
+
+       lua_getfield(L, table0, "inventory_image");
+       if(lua_isstring(L, -1))
+               f.tname_inventory = lua_tostring(L, -1);
+       lua_pop(L, 1);
+
+       // 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";
+
+       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);
-       luaL_getmetatable(L, "minetest.entity");
-       lua_pushvalue(L, -1); // duplicate metatable
-       lua_setfield(L, -2, "__index");
-       lua_setmetatable(L, -2);
-       // return table
-       return 1;
+       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 */
+}
+
+// Register a global step function
+// register_globalstep(function)
+static int l_register_globalstep(lua_State *L)
+{
+       luaL_checktype(L, 1, LUA_TFUNCTION);
+       infostream<<"register_globalstep"<<std::endl;
+
+       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, "registered_globalsteps");
+       luaL_checktype(L, -1, LUA_TTABLE);
+       int registered_globalsteps = lua_gettop(L);
+       // table.insert(registered_globalsteps, func)
+       lua_pushvalue(L, table_insert);
+       lua_pushvalue(L, registered_globalsteps);
+       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_on_placenode(function)
+static int l_register_on_placenode(lua_State *L)
+{
+       luaL_checktype(L, 1, LUA_TFUNCTION);
+       infostream<<"register_on_placenode"<<std::endl;
+
+       lua_getglobal(L, "table");
+       lua_getfield(L, -1, "insert");
+       int table_insert = lua_gettop(L);
+       // Get minetest.registered_on_placenodes
+       lua_getglobal(L, "minetest");
+       lua_getfield(L, -1, "registered_on_placenodes");
+       luaL_checktype(L, -1, LUA_TTABLE);
+       int registered_on_placenodes = lua_gettop(L);
+       // table.insert(registered_on_placenodes, func)
+       lua_pushvalue(L, table_insert);
+       lua_pushvalue(L, registered_on_placenodes);
+       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_on_dignode(function)
+static int l_register_on_dignode(lua_State *L)
+{
+       luaL_checktype(L, 1, LUA_TFUNCTION);
+       infostream<<"register_on_dignode"<<std::endl;
+
+       lua_getglobal(L, "table");
+       lua_getfield(L, -1, "insert");
+       int table_insert = lua_gettop(L);
+       // Get minetest.registered_on_dignodes
+       lua_getglobal(L, "minetest");
+       lua_getfield(L, -1, "registered_on_dignodes");
+       luaL_checktype(L, -1, LUA_TTABLE);
+       int registered_on_dignodes = lua_gettop(L);
+       // table.insert(registered_on_dignodes, func)
+       lua_pushvalue(L, table_insert);
+       lua_pushvalue(L, registered_on_dignodes);
+       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 */
 }
-#endif
 
 static const struct luaL_Reg minetest_f [] = {
        {"register_entity", l_register_entity},
-       //{"new_entity", l_new_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},
        {NULL, NULL}
 };
 
-static int l_entity_set_deleted(lua_State *L)
-{
-       return 0;
-}
+/*
+       LuaEntity functions
+*/
 
 static const struct luaL_Reg minetest_entity_m [] = {
-       {"set_deleted", l_entity_set_deleted},
        {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
 */
@@ -186,9 +570,8 @@ class EnvRef
        
        // Exported functions
 
-       // EnvRef:add_node(pos, content)
+       // EnvRef:add_node(pos, node)
        // pos = {x=num, y=num, z=num}
-       // content = number
        static int l_add_node(lua_State *L)
        {
                infostream<<"EnvRef::l_add_node()"<<std::endl;
@@ -196,26 +579,61 @@ class EnvRef
                ServerEnvironment *env = o->m_env;
                if(env == NULL) return 0;
                // pos
-               v3s16 pos;
-               lua_pushvalue(L, 2); // Push pos
-               luaL_checktype(L, -1, LUA_TTABLE);
-               lua_getfield(L, -1, "x");
-               pos.X = lua_tonumber(L, -1);
-               lua_pop(L, 1);
-               lua_getfield(L, -1, "y");
-               pos.Y = lua_tonumber(L, -1);
-               lua_pop(L, 1);
-               lua_getfield(L, -1, "z");
-               pos.Z = lua_tonumber(L, -1);
-               lua_pop(L, 1);
-               lua_pop(L, 1); // Pop pos
+               v3s16 pos = readpos(L, 2);
                // content
-               u16 content = 0;
-               lua_pushvalue(L, 3); // Push content
-               content = lua_tonumber(L, -1);
-               lua_pop(L, 1); // Pop content
+               MapNode n = readnode(L, 3, env->getGameDef()->ndef());
                // Do it
-               env->getMap().addNodeWithEvent(pos, MapNode(content));
+               env->getMap().addNodeWithEvent(pos, n);
+               return 0;
+       }
+
+       // 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
+               env->getMap().removeNodeWithEvent(pos);
+               return 0;
+       }
+
+       // 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;
        }
 
@@ -285,6 +703,9 @@ class EnvRef
 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}
 };
 
@@ -304,24 +725,50 @@ class ObjectRef
                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 *o = checkobject(L, 1);
-               ServerActiveObject *co = o->m_object;
+               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 *o = checkobject(L, 1);
-               ServerActiveObject *co = o->m_object;
+               ObjectRef *ref = checkobject(L, 1);
+               ServerActiveObject *co = getobject(ref);
                if(co == NULL) return 0;
-               infostream<<"ObjectRef::l_getpos(): id="<<co->getId()<<std::endl;
                v3f pos = co->getBasePosition() / BS;
                lua_newtable(L);
                lua_pushnumber(L, pos.X);
@@ -332,15 +779,62 @@ class ObjectRef
                lua_setfield(L, -2, "z");
                return 1;
        }
-
-       static int gc_object(lua_State *L) {
-               //ObjectRef *o = checkobject(L, 1);
-               ObjectRef *o = *(ObjectRef **)(lua_touserdata(L, 1));
-               //infostream<<"ObjectRef::gc_object: o="<<o<<std::endl;
-               delete o;
+       
+       // 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;
        }
 
+       // 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)
@@ -406,9 +900,23 @@ const char ObjectRef::className[] = "ObjectRef";
 const luaL_reg ObjectRef::methods[] = {
        method(ObjectRef, remove),
        method(ObjectRef, getpos),
+       method(ObjectRef, setpos),
+       method(ObjectRef, moveto),
+       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
 */
@@ -418,6 +926,11 @@ 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);
@@ -427,26 +940,29 @@ void scriptapi_export(lua_State *L, Server *server)
        // Get the main minetest table
        lua_getglobal(L, "minetest");
 
-       // Add registered_entities table in minetest
+       // Add tables to minetest
+       
+       /*lua_newtable(L);
+       lua_setfield(L, -2, "registered_blocks");*/
+
        lua_newtable(L);
        lua_setfield(L, -2, "registered_entities");
 
-       // Add object_refs table in minetest
+       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, "object_refs");
 
-       // Add luaentities table in minetest
        lua_newtable(L);
        lua_setfield(L, -2, "luaentities");
 
-       // Load and run some base Lua stuff
-       /*script_load(L, (porting::path_data + DIR_DELIM + "scripts"
-                       + DIR_DELIM + "base.lua").c_str());*/
-       
-       // Create entity reference metatable
-       //luaL_newmetatable(L, "minetest.entity_reference");
-       //lua_pop(L, 1);
-       
        // Create entity prototype
        luaL_newmetatable(L, "minetest.entity");
        // metatable.__index = metatable
@@ -468,6 +984,7 @@ 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);
@@ -478,11 +995,9 @@ void scriptapi_add_environment(lua_State *L, ServerEnvironment *env)
        luaL_checktype(L, -1, LUA_TTABLE);
        lua_pushvalue(L, envref);
        lua_setfield(L, -2, "env");
-       
-       // pop minetest and envref
-       lua_pop(L, 2);
 }
 
+#if 0
 // Dump stack top with the dump2 function
 static void dump2(lua_State *L, const char *name)
 {
@@ -494,6 +1009,7 @@ static void dump2(lua_State *L, const char *name)
        if(lua_pcall(L, 2, 0, 0))
                script_error(L, "error: %s\n", lua_tostring(L, -1));
 }
+#endif
 
 /*
        object_reference
@@ -504,6 +1020,7 @@ 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
@@ -519,9 +1036,6 @@ void scriptapi_add_object_reference(lua_State *L, ServerActiveObject *cobj)
        lua_pushnumber(L, cobj->getId()); // Push id
        lua_pushvalue(L, object); // Copy object to top of stack
        lua_settable(L, objectstable);
-       
-       // pop object_refs, minetest and the object
-       lua_pop(L, 3);
 }
 
 void scriptapi_rm_object_reference(lua_State *L, ServerActiveObject *cobj)
@@ -529,6 +1043,7 @@ 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");
@@ -547,28 +1062,108 @@ void scriptapi_rm_object_reference(lua_State *L, ServerActiveObject *cobj)
        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();
        
-       // pop object_refs, minetest
-       lua_pop(L, 2);
+       // 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
+       }
 }
 
-static void objectref_get(lua_State *L, u16 id)
+void scriptapi_environment_on_dignode(lua_State *L, v3s16 p, MapNode oldnode)
 {
-       // Get minetest.object_refs[i]
+       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, "object_refs");
+       lua_getfield(L, -1, "registered_on_dignodes");
        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
+       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
 */
 
-void scriptapi_luaentity_add(lua_State *L, u16 id, const char *name,
+bool scriptapi_luaentity_add(lua_State *L, u16 id, const char *name,
                const char *init_state)
 {
        realitycheck(L);
@@ -586,7 +1181,11 @@ void scriptapi_luaentity_add(lua_State *L, u16 id, const char *name,
        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);
+       //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");
        
@@ -606,16 +1205,26 @@ void scriptapi_luaentity_add(lua_State *L, u16 id, const char *name,
                luaL_typerror(L, -1, "ObjectRef");
        lua_setfield(L, -2, "object");
 
-       // Get minetest.luaentities table
+       // minetest.luaentities[id] = object
        lua_getglobal(L, "minetest");
        lua_getfield(L, -1, "luaentities");
        luaL_checktype(L, -1, LUA_TTABLE);
-       int luaentities = lua_gettop(L);
-       
-       // luaentities[id] = object
        lua_pushnumber(L, id); // Push id
        lua_pushvalue(L, object); // Copy object to top of stack
-       lua_settable(L, luaentities);
+       lua_settable(L, -3);
+       
+       // This callback doesn't really make sense
+       /*// Get on_activate function
+       lua_pushvalue(L, object);
+       lua_getfield(L, -1, "on_activate");
+       luaL_checktype(L, -1, LUA_TFUNCTION);
+       lua_pushvalue(L, object); // self
+       // Call with 1 arguments, 0 results
+       if(lua_pcall(L, 1, 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)
@@ -638,18 +1247,6 @@ void scriptapi_luaentity_rm(lua_State *L, u16 id)
        lua_pop(L, 2); // pop luaentities, 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
-}
-
 std::string scriptapi_luaentity_get_state(lua_State *L, u16 id)
 {
        realitycheck(L);
@@ -659,6 +1256,74 @@ std::string scriptapi_luaentity_get_state(lua_State *L, u16 id)
        return "";
 }
 
+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);
@@ -672,6 +1337,8 @@ void scriptapi_luaentity_step(lua_State *L, u16 id, float dtime)
        // 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
@@ -680,8 +1347,9 @@ void scriptapi_luaentity_step(lua_State *L, u16 id, float dtime)
                script_error(L, "error running function 'step': %s\n", lua_tostring(L, -1));
 }
 
-void scriptapi_luaentity_rightclick_player(lua_State *L, u16 id,
-               const char *playername)
+// Calls entity:on_punch(ObjectRef puncher)
+void scriptapi_luaentity_punch(lua_State *L, u16 id,
+               ServerActiveObject *puncher)
 {
        realitycheck(L);
        assert(lua_checkstack(L, 20));
@@ -692,12 +1360,40 @@ void scriptapi_luaentity_rightclick_player(lua_State *L, u16 id,
        luaentity_get(L, id);
        int object = lua_gettop(L);
        // State: object is at top of stack
-       // Get step function
+       // 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
-       // Call with 1 arguments, 0 results
-       if(lua_pcall(L, 1, 0, 0))
-               script_error(L, "error running function 'step': %s\n", lua_tostring(L, -1));
+       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));
 }