void ScriptApiNode::node_on_receive_fields(v3s16 p,
const std::string &formname,
const std::map<std::string, std::string> &fields,
ServerActiveObject *sender)
{
SCRIPTAPI_PRECHECKHEADER
INodeDefManager *ndef = getServer()->ndef();
// If node doesn't exist, we don't know what callback to call
MapNode node = getEnv()->getMap().getNodeNoEx(p);
if(node.getContent() == CONTENT_IGNORE)
return;
// Push callback function on stack
if(!getItemCallback(ndef->get(node).name.c_str(), "on_receive_fields"))
return;
// Call function
// param 1
push_v3s16(L, p);
// param 2
lua_pushstring(L, formname.c_str());
// param 3
lua_newtable(L);
for(std::map<std::string, std::string>::const_iterator
i = fields.begin(); i != fields.end(); i++){
const std::string &name = i->first;
const std::string &value = i->second;
lua_pushstring(L, name.c_str());
lua_pushlstring(L, value.c_str(), value.size());
lua_settable(L, -3);
}
// param 4
objectrefGetOrCreate(sender);
if(lua_pcall(L, 4, 0, 0))
scriptError("error: %s", lua_tostring(L, -1));
}
bool ScriptApiNode::node_on_dig(v3s16 p, MapNode node,
ServerActiveObject *digger)
{
SCRIPTAPI_PRECHECKHEADER
lua_pushcfunction(L, script_error_handler);
int errorhandler = lua_gettop(L);
INodeDefManager *ndef = getServer()->ndef();
// Push callback function on stack
if(!getItemCallback(ndef->get(node).name.c_str(), "on_dig"))
return false;
// Call function
push_v3s16(L, p);
pushnode(L, node, ndef);
objectrefGetOrCreate(digger);
if(lua_pcall(L, 3, 0, errorhandler))
scriptError();
lua_pop(L, 1); // Pop error handler
return true;
}
bool ScriptApiItem::item_OnUse(ItemStack &item,
ServerActiveObject *user, const PointedThing &pointed)
{
SCRIPTAPI_PRECHECKHEADER
lua_pushcfunction(L, script_error_handler);
int errorhandler = lua_gettop(L);
// Push callback function on stack
if(!getItemCallback(item.name.c_str(), "on_use"))
return false;
// Call function
LuaItemStack::create(L, item);
objectrefGetOrCreate(user);
pushPointedThing(pointed);
if(lua_pcall(L, 3, 1, errorhandler))
scriptError();
if(!lua_isnil(L, -1))
item = read_item(L,-1, getServer());
lua_pop(L, 2); // Pop item and error handler
return true;
}
// Return number of accepted items to be moved
int ScriptApiNodemeta::nodemeta_inventory_AllowMove(v3s16 p,
const std::string &from_list, int from_index,
const std::string &to_list, int to_index,
int count, ServerActiveObject *player)
{
SCRIPTAPI_PRECHECKHEADER
int error_handler = PUSH_ERROR_HANDLER(L);
INodeDefManager *ndef = getServer()->ndef();
// If node doesn't exist, we don't know what callback to call
MapNode node = getEnv()->getMap().getNodeNoEx(p);
if (node.getContent() == CONTENT_IGNORE)
return 0;
// Push callback function on stack
std::string nodename = ndef->get(node).name;
if (!getItemCallback(nodename.c_str(), "allow_metadata_inventory_move", &p))
return count;
// function(pos, from_list, from_index, to_list, to_index, count, player)
push_v3s16(L, p); // pos
lua_pushstring(L, from_list.c_str()); // from_list
lua_pushinteger(L, from_index + 1); // from_index
lua_pushstring(L, to_list.c_str()); // to_list
lua_pushinteger(L, to_index + 1); // to_index
lua_pushinteger(L, count); // count
objectrefGetOrCreate(L, player); // player
PCALL_RES(lua_pcall(L, 7, 1, error_handler));
if (!lua_isnumber(L, -1))
throw LuaError("allow_metadata_inventory_move should"
" return a number, guilty node: " + nodename);
int num = luaL_checkinteger(L, -1);
lua_pop(L, 2); // Pop integer and error handler
return num;
}
// Return number of accepted items to be put
int ScriptApiNodemeta::nodemeta_inventory_AllowPut(v3s16 p,
const std::string &listname, int index, ItemStack &stack,
ServerActiveObject *player)
{
SCRIPTAPI_PRECHECKHEADER
lua_pushcfunction(L, script_error_handler);
int errorhandler = lua_gettop(L);
INodeDefManager *ndef = getServer()->ndef();
// If node doesn't exist, we don't know what callback to call
MapNode node = getEnv()->getMap().getNodeNoEx(p);
if(node.getContent() == CONTENT_IGNORE)
return 0;
// Push callback function on stack
if(!getItemCallback(ndef->get(node).name.c_str(),
"allow_metadata_inventory_put"))
return stack.count;
// Call function(pos, listname, index, stack, player)
push_v3s16(L, p); // pos
lua_pushstring(L, listname.c_str()); // listname
lua_pushinteger(L, index + 1); // index
LuaItemStack::create(L, stack); // stack
objectrefGetOrCreate(player); // player
if(lua_pcall(L, 5, 1, errorhandler))
scriptError();
lua_remove(L, errorhandler); // Remove error handler
if(!lua_isnumber(L, -1))
throw LuaError(L, "allow_metadata_inventory_put should return a number");
int num = luaL_checkinteger(L, -1);
lua_pop(L, 1); // Pop integer
return num;
}
void ScriptApiNode::node_on_receive_fields(v3s16 p,
const std::string &formname,
const StringMap &fields,
ServerActiveObject *sender)
{
SCRIPTAPI_PRECHECKHEADER
int error_handler = PUSH_ERROR_HANDLER(L);
INodeDefManager *ndef = getServer()->ndef();
// If node doesn't exist, we don't know what callback to call
MapNode node = getEnv()->getMap().getNodeNoEx(p);
if (node.getContent() == CONTENT_IGNORE)
return;
// Push callback function on stack
if (!getItemCallback(ndef->get(node).name.c_str(), "on_receive_fields"))
return;
// Call function
push_v3s16(L, p); // pos
lua_pushstring(L, formname.c_str()); // formname
lua_newtable(L); // fields
StringMap::const_iterator it;
for (it = fields.begin(); it != fields.end(); it++) {
const std::string &name = it->first;
const std::string &value = it->second;
lua_pushstring(L, name.c_str());
lua_pushlstring(L, value.c_str(), value.size());
lua_settable(L, -3);
}
objectrefGetOrCreate(L, sender); // player
PCALL_RES(lua_pcall(L, 4, 0, error_handler));
lua_pop(L, 1); // Pop error handler
}
