/*
Minetest-c55
-Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>
+Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- The map
- Players
- Other objects
- - The current time in the game, etc.
+ - The current time in the game
+ - etc.
*/
#include <list>
#include "player.h"
#include "map.h"
#include <ostream>
+#include "utility.h"
+#include "activeobject.h"
+
+class Server;
+class ActiveBlockModifier;
+class ServerActiveObject;
+typedef struct lua_State lua_State;
+class ITextureSource;
+class IGameDef;
class Environment
{
public:
// Environment will delete the map passed to the constructor
- Environment(Map *map, std::ostream &dout);
- ~Environment();
+ Environment();
+ virtual ~Environment();
+
/*
- This can do anything to the environment, such as removing
- timed-out players.
- Also updates Map's timers.
+ Step everything in environment.
+ - Move players
+ - Step mobs
+ - Run timers of map
*/
- void step(f32 dtime);
+ virtual void step(f32 dtime) = 0;
- Map & getMap();
+ virtual Map & getMap() = 0;
- /*
- Environment deallocates players after use.
- */
- void addPlayer(Player *player);
+ virtual void addPlayer(Player *player);
void removePlayer(u16 peer_id);
- LocalPlayer * getLocalPlayer();
Player * getPlayer(u16 peer_id);
+ Player * getPlayer(const char *name);
+ Player * getRandomConnectedPlayer();
+ Player * getNearestConnectedPlayer(v3f pos);
core::list<Player*> getPlayers();
+ core::list<Player*> getPlayers(bool ignore_disconnected);
void printPlayers(std::ostream &o);
+
+ //void setDayNightRatio(u32 r);
+ u32 getDayNightRatio();
+
+ // 0-23999
+ virtual void setTimeOfDay(u32 time)
+ {
+ m_time_of_day = time;
+ }
- void updateMeshes(v3s16 blockpos);
- void expireMeshes();
- void setDaylightRatio(u32 r);
- u32 getDaylightRatio();
+ u32 getTimeOfDay()
+ {
+ return m_time_of_day;
+ }
-private:
- Map *m_map;
+protected:
+ // peer_ids in here should be unique, except that there may be many 0s
core::list<Player*> m_players;
- // Debug output goes here
- std::ostream &m_dout;
- u32 m_daylight_ratio;
+ // Brightness
+ //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:
+};
+
+/*
+ The server-side environment.
+
+ This is not thread-safe. Server uses an environment mutex.
+*/
+
+class ServerEnvironment : public Environment
+{
+public:
+ ServerEnvironment(ServerMap *map, lua_State *L, IGameDef *gamedef);
+ ~ServerEnvironment();
+
+ Map & getMap()
+ { return *m_map; }
+
+ ServerMap & getServerMap()
+ { return *m_map; }
+
+ lua_State* getLua()
+ { return m_lua; }
+
+ IGameDef *getGameDef()
+ { return m_gamedef; }
+
+ float getSendRecommendedInterval()
+ {
+ return 0.10;
+ }
+
+ /*
+ Save players
+ */
+ void serializePlayers(const std::string &savedir);
+ void deSerializePlayers(const std::string &savedir);
+
+ /*
+ 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);
+
+ /*
+ 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.
+ Returns the id of the object.
+ Returns 0 if not added and thus deleted.
+ */
+ u16 addActiveObject(ServerActiveObject *object);
+
+ /*
+ Add an active object as a static object to the corresponding
+ MapBlock.
+ Caller allocates memory, ServerEnvironment frees memory.
+ Return value: true if succeeded, false if failed.
+ */
+ bool addActiveObjectAsStatic(ServerActiveObject *object);
+
+ /*
+ Find out what new objects have been added to
+ inside a radius around a position
+ */
+ void getAddedActiveObjects(v3s16 pos, s16 radius,
+ core::map<u16, bool> ¤t_objects,
+ core::map<u16, bool> &added_objects);
+
+ /*
+ Find out what new objects have been removed from
+ inside a radius around a position
+ */
+ void getRemovedActiveObjects(v3s16 pos, s16 radius,
+ core::map<u16, bool> ¤t_objects,
+ core::map<u16, bool> &removed_objects);
+
+ /*
+ 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)
+ -------------------------------------------
+ NOTE: Not used currently (TODO: Use or remove)
+ */
+
+ void addActiveBlockModifier(ActiveBlockModifier *abm);
+
+ /* Other stuff */
+
+ // Clear all objects, loading and going through every MapBlock
+ void clearAllObjects();
+
+ void step(f32 dtime);
+
+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;
+ // Lua state
+ lua_State *m_lua;
+ // Game definition
+ IGameDef *m_gamedef;
+ // Active object list
+ core::map<u16, ServerActiveObject*> m_active_objects;
+ // Outgoing network message buffer for active objects
+ Queue<ActiveObjectMessage> m_active_object_messages;
+ // 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.
+
+ NOTE: Not used currently (TODO: Use or remove)
+*/
+
+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
+
+#include "clientobject.h"
+
+/*
+ The client-side environment.
+
+ This is not thread-safe.
+ Must be called from main (irrlicht) thread (uses the SceneManager)
+ Client uses an environment mutex.
+*/
+
+enum ClientEnvEventType
+{
+ CEE_NONE,
+ CEE_PLAYER_DAMAGE
};
+struct ClientEnvEvent
+{
+ ClientEnvEventType type;
+ union {
+ struct{
+ } none;
+ struct{
+ u8 amount;
+ } player_damage;
+ };
+};
+
+class ClientEnvironment : public Environment
+{
+public:
+ ClientEnvironment(ClientMap *map, scene::ISceneManager *smgr,
+ ITextureSource *texturesource, IGameDef *gamedef);
+ ~ClientEnvironment();
+
+ Map & getMap()
+ {
+ return *m_map;
+ }
+
+ ClientMap & getClientMap()
+ {
+ return *m_map;
+ }
+
+ void step(f32 dtime);
+
+ virtual void addPlayer(Player *player);
+ LocalPlayer * getLocalPlayer();
+
+ // Slightly deprecated
+ void updateMeshes(v3s16 blockpos, ITextureSource *tsrc);
+ void expireMeshes(bool only_daynight_diffed);
+
+ void setTimeOfDay(u32 time)
+ {
+ u32 old_dr = getDayNightRatio();
+
+ Environment::setTimeOfDay(time);
+
+ if(getDayNightRatio() != old_dr)
+ {
+ /*infostream<<"ClientEnvironment: DayNightRatio changed"
+ <<" -> expiring meshes"<<std::endl;*/
+ expireMeshes(true);
+ }
+ }
+
+ /*
+ ActiveObjects
+ */
+
+ ClientActiveObject* getActiveObject(u16 id);
+
+ /*
+ Adds 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.
+ Returns the id of the object.
+ Returns 0 if not added and thus deleted.
+ */
+ u16 addActiveObject(ClientActiveObject *object);
+
+ void addActiveObject(u16 id, u8 type, const std::string &init_data);
+ void removeActiveObject(u16 id);
+
+ void processActiveObjectMessage(u16 id, const std::string &data);
+
+ /*
+ Callbacks for activeobjects
+ */
+
+ void damageLocalPlayer(u8 damage);
+
+ /*
+ Client likes to call these
+ */
+
+ // Get all nearby objects
+ void getActiveObjects(v3f origin, f32 max_d,
+ core::array<DistanceSortedActiveObject> &dest);
+
+ // Get event from queue. CEE_NONE is returned if queue is empty.
+ ClientEnvEvent getClientEvent();
+
+private:
+ ClientMap *m_map;
+ scene::ISceneManager *m_smgr;
+ ITextureSource *m_texturesource;
+ IGameDef *m_gamedef;
+ core::map<u16, ClientActiveObject*> m_active_objects;
+ Queue<ClientEnvEvent> m_client_event_queue;
+ IntervalLimiter m_active_object_light_update_interval;
+ IntervalLimiter m_lava_hurt_interval;
+};
+
+#endif
+
#endif
projects / dragonfireclient.git / blobdiff