Eliminate saving of GUId generator state to disk. Use system time ins…

…tead.

src/guid.h

@@ -60,21 +60,21 @@ class GUIdGenerator {
 	 * Set ServerEnvironment,
 	 * @param env ServerEnvironment.
 	 */
-	void setServerEnvironment(ServerEnvironment *env) { m_env = env; };
+	void setServerEnvironment(ServerEnvironment *env, u64 state) { m_env = env; m_next = state; };
 	/**
 	 * Set state to defined/known state,
 	 * @param next New state value.
 	 */
-	void setState(u32 state) { m_next = state; };
+	void setState(u64 state) { m_next = state; };
 	/**
 	 * Get state,
 	 * @return Return aactual state value.
 	 */
-	u32 getState() const { return m_next; };
+	u64 getState() const { return m_next; };
 
 private:
 	ServerEnvironment *m_env;
-	u32 m_next;
+	u64 m_next;
 
 	friend class ServerEnvironment;
 };

src/serverenvironment.cpp

@@ -457,7 +457,7 @@ ServerEnvironment::ServerEnvironment(ServerMap *map,
 	m_active_object_gauge = mb->addGauge(
 		"minetest_env_active_objects", "Number of active objects");
 
-	m_guid_generator.setServerEnvironment(this);
+	m_guid_generator.setServerEnvironment(this, porting::getTimeS());
 }
 
 void ServerEnvironment::init()
@@ -720,7 +720,6 @@ void ServerEnvironment::saveMeta()
 	args.set("lbm_introduction_times",
 		m_lbm_mgr.createIntroductionTimesString());
 	args.setU64("day_count", m_day_count);
-	args.setU64("guid_state", m_guid_generator.getState());
 	args.writeLines(ss);
 
 	if(!fs::safeWriteToFile(path, ss.str()))
@@ -794,10 +793,6 @@ void ServerEnvironment::loadMeta()
 
 	m_day_count = args.exists("day_count") ?
 		args.getU64("day_count") : 0;
-
-	u32 guid_state = args.exists("guid_state") ?
-		args.getU64("guid_state") : 0;
-	m_guid_generator.setState(guid_state);
 }
 
 /**