Fixes.

src/script/lua_api/l_noise.cpp

@@ -522,8 +522,8 @@ int LuaPcgRandom::l_get_state(lua_State *L)
 
 	std::stringstream s_state;
 
-	s_state << std::hex << std::setw(64) << std::setfill('0') << state[0];
-	s_state << std::hex << std::setw(64) << std::setfill('0') << state[1];
+	s_state << std::hex << std::setw(16) << std::setfill('0') << state[0];
+	s_state << std::hex << std::setw(16) << std::setfill('0') << state[1];
 
 	lua_pushstring(L, s_state.str().c_str());
 	return 1;
@@ -539,20 +539,20 @@ int LuaPcgRandom::l_set_state(lua_State *L)
 	}
 
 	std::string l_string = lua_tostring(L, 2);
-	if (l_string.size()!=128) {
-		throw LuaError("PcgRandom.set_state(): Expected hex strings of 128 characters");
+	if (l_string.size()!=32) {
+		throw LuaError("PcgRandom.set_state(): Expected hex strings of 32 characters");
 	}
 
-	std::istringstream s_state_0(l_string.substr(0, 64));
-	std::istringstream s_state_1(l_string.substr(64, 64));
+	std::istringstream s_state_0(l_string.substr(0, 16));
+	std::istringstream s_state_1(l_string.substr(16, 16));
 
 	u64 state[2];
 	s_state_0 >> std::hex >> state[0];
 	s_state_1 >> std::hex >> state[1];
 
 	o->m_rnd.setState(state);
 
-	return 1;
+	return 0;
 }
 
 int LuaPcgRandom::create_object(lua_State *L)