Server should use the same eye position as the client
[oweals/minetest.git] / src / environment.h
index 2d3feaca8e9b32583ef17ec5b4b10116da8c068d..b6767858ad5c49100a188e501e7c7bea05cc68a5 100644 (file)
@@ -36,6 +36,11 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "map.h"
 #include <ostream>
 #include "utility.h"
+#include "activeobject.h"
+
+class Server;
+class ActiveBlockModifier;
+class ServerActiveObject;
 
 class Environment
 {
@@ -64,14 +69,52 @@ public:
        core::list<Player*> getPlayers(bool ignore_disconnected);
        void printPlayers(std::ostream &o);
        
-       void setDayNightRatio(u32 r);
+       //void setDayNightRatio(u32 r);
        u32 getDayNightRatio();
+       
+       // 0-23999
+       virtual void setTimeOfDay(u32 time)
+       {
+               m_time_of_day = time;
+       }
+
+       u32 getTimeOfDay()
+       {
+               return m_time_of_day;
+       }
 
 protected:
        // peer_ids in here should be unique, except that there may be many 0s
        core::list<Player*> m_players;
        // Brightness
-       u32 m_daynight_ratio;
+       //u32 m_daynight_ratio;
+       // Time of day in milli-hours (0-23999); determines day and night
+       u32 m_time_of_day;
+};
+
+/*
+       List of active blocks, used by ServerEnvironment
+*/
+
+class ActiveBlockList
+{
+public:
+       void update(core::list<v3s16> &active_positions,
+                       s16 radius,
+                       core::map<v3s16, bool> &blocks_removed,
+                       core::map<v3s16, bool> &blocks_added);
+
+       bool contains(v3s16 p){
+               return (m_list.find(p) != NULL);
+       }
+
+       void clear(){
+               m_list.clear();
+       }
+
+       core::map<v3s16, bool> m_list;
+
+private:
 };
 
 /*
@@ -80,10 +123,6 @@ protected:
        This is not thread-safe. Server uses an environment mutex.
 */
 
-#include "serverobject.h"
-
-class Server;
-
 class ServerEnvironment : public Environment
 {
 public:
@@ -106,18 +145,28 @@ public:
        }
 
        void step(f32 dtime);
-
+       
+       /*
+               Save players
+       */
        void serializePlayers(const std::string &savedir);
        void deSerializePlayers(const std::string &savedir);
 
        /*
-               ActiveObjects
+               Save and load time of day and game timer
+       */
+       void saveMeta(const std::string &savedir);
+       void loadMeta(const std::string &savedir);
+
+       /*
+               External ActiveObject interface
+               -------------------------------------------
        */
 
        ServerActiveObject* getActiveObject(u16 id);
 
        /*
-               Adds an active object to the environment.
+               Add an active object to the environment.
                Environment handles deletion of object.
                Object may be deleted by environment immediately.
                If id of object is 0, assigns a free id to it.
@@ -127,7 +176,7 @@ public:
        u16 addActiveObject(ServerActiveObject *object);
        
        /*
-               Finds out what new objects have been added to
+               Find out what new objects have been added to
                inside a radius around a position
        */
        void getAddedActiveObjects(v3s16 pos, s16 radius,
@@ -135,7 +184,7 @@ public:
                        core::map<u16, bool> &added_objects);
 
        /*
-               Finds out what new objects have been removed from
+               Find out what new objects have been removed from
                inside a radius around a position
        */
        void getRemovedActiveObjects(v3s16 pos, s16 radius,
@@ -143,19 +192,113 @@ public:
                        core::map<u16, bool> &removed_objects);
        
        /*
-               Gets the next message emitted by some active object.
+               Get the next message emitted by some active object.
                Returns a message with id=0 if no messages are available.
        */
        ActiveObjectMessage getActiveObjectMessage();
-       
+
+       /*
+               Activate objects and dynamically modify for the dtime determined
+               from timestamp and additional_dtime
+       */
+       void activateBlock(MapBlock *block, u32 additional_dtime=0);
+
+       /*
+               ActiveBlockModifiers (TODO)
+               -------------------------------------------
+       */
+
+       void addActiveBlockModifier(ActiveBlockModifier *abm);
+
 private:
+
+       /*
+               Internal ActiveObject interface
+               -------------------------------------------
+       */
+
+       /*
+               Add an active object to the environment.
+
+               Called by addActiveObject.
+
+               Object may be deleted by environment immediately.
+               If id of object is 0, assigns a free id to it.
+               Returns the id of the object.
+               Returns 0 if not added and thus deleted.
+       */
+       u16 addActiveObjectRaw(ServerActiveObject *object, bool set_changed);
+       
+       /*
+               Remove all objects that satisfy (m_removed && m_known_by_count==0)
+       */
+       void removeRemovedObjects();
+       
+       /*
+               Convert stored objects from block to active
+       */
+       void activateObjects(MapBlock *block);
+       
+       /*
+               Convert objects that are not in active blocks to static.
+
+               If m_known_by_count != 0, active object is not deleted, but static
+               data is still updated.
+
+               If force_delete is set, active object is deleted nevertheless. It
+               shall only be set so in the destructor of the environment.
+       */
+       void deactivateFarObjects(bool force_delete);
+
+       /*
+               Member variables
+       */
+       
+       // The map
        ServerMap *m_map;
+       // Pointer to server (which is handling this environment)
        Server *m_server;
+       // Active object list
        core::map<u16, ServerActiveObject*> m_active_objects;
+       // Outgoing network message buffer for active objects
        Queue<ActiveObjectMessage> m_active_object_messages;
-       float m_random_spawn_timer;
+       // Some timers
+       float m_random_spawn_timer; // used for experimental code
        float m_send_recommended_timer;
        IntervalLimiter m_object_management_interval;
+       // List of active blocks
+       ActiveBlockList m_active_blocks;
+       IntervalLimiter m_active_blocks_management_interval;
+       IntervalLimiter m_active_blocks_test_interval;
+       IntervalLimiter m_active_blocks_nodemetadata_interval;
+       // Time from the beginning of the game in seconds.
+       // Incremented in step().
+       u32 m_game_time;
+       // A helper variable for incrementing the latter
+       float m_game_time_fraction_counter;
+};
+
+/*
+       Active block modifier interface.
+
+       These are fed into ServerEnvironment at initialization time;
+       ServerEnvironment handles deleting them.
+*/
+
+class ActiveBlockModifier
+{
+public:
+       ActiveBlockModifier(){};
+       virtual ~ActiveBlockModifier(){};
+
+       //virtual core::list<u8> update(ServerEnvironment *env) = 0;
+       virtual u32 getTriggerContentCount(){ return 1;}
+       virtual u8 getTriggerContent(u32 i) = 0;
+       virtual float getActiveInterval() = 0;
+       // chance of (1 / return value), 0 is disallowed
+       virtual u32 getActiveChance() = 0;
+       // This is called usually at interval for 1/chance of the nodes
+       virtual void triggerEvent(ServerEnvironment *env, v3s16 p) = 0;
 };
 
 #ifndef SERVER
@@ -212,6 +355,20 @@ public:
        void updateMeshes(v3s16 blockpos);
        void expireMeshes(bool only_daynight_diffed);
 
+       void setTimeOfDay(u32 time)
+       {
+               u32 old_dr = getDayNightRatio();
+
+               Environment::setTimeOfDay(time);
+
+               if(getDayNightRatio() != old_dr)
+               {
+                       dout_client<<DTIME<<"ClientEnvironment: DayNightRatio changed"
+                                       <<" -> expiring meshes"<<std::endl;
+                       expireMeshes(true);
+               }
+       }
+
        /*
                ActiveObjects
        */
@@ -249,12 +406,16 @@ public:
        
        // Get event from queue. CEE_NONE is returned if queue is empty.
        ClientEnvEvent getClientEvent();
+
+       // Post effects
+       void drawPostFx(video::IVideoDriver* driver, v3f camera_pos);
        
 private:
        ClientMap *m_map;
        scene::ISceneManager *m_smgr;
        core::map<u16, ClientActiveObject*> m_active_objects;
        Queue<ClientEnvEvent> m_client_event_queue;
+       IntervalLimiter m_active_object_light_update_interval;
 };
 
 #endif