Add Lua on_mapgen_init callback, and minetest.set_mapgen_params API
[oweals/minetest.git] / src / environment.h
index 2cdfb4b4858404e8f0f2fffbb4057bf9b93195e8..ac479999cf748d29a09f5a18e72b74afd64dc7be 100644 (file)
@@ -1,18 +1,18 @@
 /*
-Minetest-c55
-Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
+Minetest
+Copyright (C) 2010-2013 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 Free Software Foundation; either version 2 of the License, or
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
 (at your option) any later version.
 
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
+GNU Lesser General Public License for more details.
 
-You should have received a copy of the GNU General Public License along
+You should have received a copy of the GNU Lesser General Public License along
 with this program; if not, write to the Free Software Foundation, Inc.,
 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
@@ -31,19 +31,26 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 */
 
 #include <set>
-#include "common_irrlicht.h"
+#include <list>
+#include "irrlichttypes_extrabloated.h"
 #include "player.h"
-#include "map.h"
 #include <ostream>
-#include "utility.h"
 #include "activeobject.h"
+#include "util/container.h"
+#include "util/numeric.h"
+#include "mapnode.h"
+#include "mapblock.h"
 
-class Server;
+class ServerEnvironment;
 class ActiveBlockModifier;
 class ServerActiveObject;
 typedef struct lua_State lua_State;
 class ITextureSource;
 class IGameDef;
+class Map;
+class ServerMap;
+class ClientMap;
+class ScriptApi;
 
 class Environment
 {
@@ -68,31 +75,43 @@ public:
        Player * getPlayer(const char *name);
        Player * getRandomConnectedPlayer();
        Player * getNearestConnectedPlayer(v3f pos);
-       core::list<Player*> getPlayers();
-       core::list<Player*> getPlayers(bool ignore_disconnected);
+       std::list<Player*> getPlayers();
+       std::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;
+               m_time_of_day_f = (float)time / 24000.0;
        }
 
        u32 getTimeOfDay()
-       {
-               return m_time_of_day;
-       }
+       { return m_time_of_day; }
+
+       float getTimeOfDayF()
+       { return m_time_of_day_f; }
+
+       void stepTimeOfDay(float dtime);
+
+       void setTimeOfDaySpeed(float speed)
+       { m_time_of_day_speed = speed; }
+       
+       float getTimeOfDaySpeed()
+       { return m_time_of_day_speed; }
 
 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;
+       std::list<Player*> m_players;
        // Time of day in milli-hours (0-23999); determines day and night
        u32 m_time_of_day;
+       // Time of day in 0...1
+       float m_time_of_day_f;
+       float m_time_of_day_speed;
+       // Used to buffer dtime for adding to m_time_of_day
+       float m_time_counter;
 };
 
 /*
@@ -108,9 +127,15 @@ public:
        ActiveBlockModifier(){};
        virtual ~ActiveBlockModifier(){};
        
+       // Set of contents to trigger on
        virtual std::set<std::string> getTriggerContents()=0;
+       // Set of required neighbors (trigger doesn't happen if none are found)
+       // Empty = do not check neighbors
+       virtual std::set<std::string> getRequiredNeighbors()
+       { return std::set<std::string>(); }
+       // Trigger interval in seconds
        virtual float getTriggerInterval() = 0;
-       // chance of (1 / return value), 0 is disallowed
+       // Random chance of (1 / return value), 0 is disallowed
        virtual u32 getTriggerChance() = 0;
        // This is called usually at interval for 1/chance of the nodes
        virtual void trigger(ServerEnvironment *env, v3s16 p, MapNode n){};
@@ -123,9 +148,7 @@ struct ABMWithState
        ActiveBlockModifier *abm;
        float timer;
 
-       ABMWithState(ActiveBlockModifier *abm_):
-               abm(abm_)
-       {}
+       ABMWithState(ActiveBlockModifier *abm_);
 };
 
 /*
@@ -135,20 +158,20 @@ struct ABMWithState
 class ActiveBlockList
 {
 public:
-       void update(core::list<v3s16> &active_positions,
+       void update(std::list<v3s16> &active_positions,
                        s16 radius,
-                       core::map<v3s16, bool> &blocks_removed,
-                       core::map<v3s16, bool> &blocks_added);
+                       std::set<v3s16> &blocks_removed,
+                       std::set<v3s16> &blocks_added);
 
        bool contains(v3s16 p){
-               return (m_list.find(p) != NULL);
+               return (m_list.find(p) != m_list.end());
        }
 
        void clear(){
                m_list.clear();
        }
 
-       core::map<v3s16, bool> m_list;
+       std::set<v3s16> m_list;
 
 private:
 };
@@ -168,26 +191,23 @@ public:
 class ServerEnvironment : public Environment
 {
 public:
-       ServerEnvironment(ServerMap *map, lua_State *L, IGameDef *gamedef,
+       ServerEnvironment(ServerMap *map, ScriptApi *iface, IGameDef *gamedef,
                        IBackgroundBlockEmerger *emerger);
        ~ServerEnvironment();
 
-       Map & getMap()
-               { return *m_map; }
+       Map & getMap();
 
-       ServerMap & getServerMap()
-               { return *m_map; }
+       ServerMap & getServerMap();
 
-       lua_State* getLua()
-               { return m_lua; }
+       //TODO find way to remove this fct!
+       ScriptApi* getScriptIface()
+               { return m_script; }
 
        IGameDef *getGameDef()
                { return m_gamedef; }
 
        float getSendRecommendedInterval()
-       {
-               return 0.10;
-       }
+               { return m_recommended_send_interval; }
 
        /*
                Save players
@@ -223,24 +243,25 @@ public:
                MapBlock.
                Caller allocates memory, ServerEnvironment frees memory.
                Return value: true if succeeded, false if failed.
+               (note:  not used, pending removal from engine)
        */
-       bool addActiveObjectAsStatic(ServerActiveObject *object);
+       //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> &current_objects,
-                       core::map<u16, bool> &added_objects);
+                       std::set<u16> &current_objects,
+                       std::set<u16> &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> &current_objects,
-                       core::map<u16, bool> &removed_objects);
+                       std::set<u16> &current_objects,
+                       std::set<u16> &removed_objects);
        
        /*
                Get the next message emitted by some active object.
@@ -255,20 +276,33 @@ public:
        void activateBlock(MapBlock *block, u32 additional_dtime=0);
 
        /*
-               ActiveBlockModifiers (TODO)
+               ActiveBlockModifiers
                -------------------------------------------
-               NOTE: Not used currently (TODO: Use or remove)
        */
 
        void addActiveBlockModifier(ActiveBlockModifier *abm);
 
-       /* Other stuff */
+       /*
+               Other stuff
+               -------------------------------------------
+       */
+
+       // Script-aware node setters
+       bool setNode(v3s16 p, const MapNode &n);
+       bool removeNode(v3s16 p);
+       
+       // Find all active objects inside a radius around a point
+       std::set<u16> getObjectsInsideRadius(v3f pos, float radius);
        
        // Clear all objects, loading and going through every MapBlock
        void clearAllObjects();
        
+       // This makes stuff happen
        void step(f32 dtime);
        
+       //check if there's a line of sight between two positions
+       bool line_of_sight(v3f pos1, v3f pos2, float stepsize=1.0);
+
 private:
 
        /*
@@ -286,7 +320,7 @@ private:
                Returns the id of the object.
                Returns 0 if not added and thus deleted.
        */
-       u16 addActiveObjectRaw(ServerActiveObject *object, bool set_changed);
+       u16 addActiveObjectRaw(ServerActiveObject *object, bool set_changed, u32 dtime_s);
        
        /*
                Remove all objects that satisfy (m_removed && m_known_by_count==0)
@@ -296,7 +330,7 @@ private:
        /*
                Convert stored objects from block to active
        */
-       void activateObjects(MapBlock *block);
+       void activateObjects(MapBlock *block, u32 dtime_s);
        
        /*
                Convert objects that are not in active blocks to static.
@@ -316,13 +350,13 @@ private:
        // The map
        ServerMap *m_map;
        // Lua state
-       lua_State *m_lua;
+       ScriptApi* m_script;
        // Game definition
        IGameDef *m_gamedef;
        // Background block emerger (the server, in practice)
        IBackgroundBlockEmerger *m_emerger;
        // Active object list
-       core::map<u16, ServerActiveObject*> m_active_objects;
+       std::map<u16, ServerActiveObject*> m_active_objects;
        // Outgoing network message buffer for active objects
        Queue<ActiveObjectMessage> m_active_object_messages;
        // Some timers
@@ -334,17 +368,21 @@ private:
        IntervalLimiter m_active_blocks_management_interval;
        IntervalLimiter m_active_block_modifier_interval;
        IntervalLimiter m_active_blocks_nodemetadata_interval;
+       int m_active_block_interval_overload_skip;
        // 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;
-       core::list<ABMWithState> m_abms;
+       std::list<ABMWithState> m_abms;
+       // An interval for generally sending object positions and stuff
+       float m_recommended_send_interval;
 };
 
 #ifndef SERVER
 
 #include "clientobject.h"
+class ClientSimpleObject;
 
 /*
        The client-side environment.
@@ -368,6 +406,7 @@ struct ClientEnvEvent
                } none;
                struct{
                        u8 amount;
+                       bool send_to_server;
                } player_damage;
        };
 };
@@ -380,11 +419,8 @@ public:
                        IrrlichtDevice *device);
        ~ClientEnvironment();
 
-       Map & getMap()
-       { return *m_map; }
-
-       ClientMap & getClientMap()
-       { return *m_map; }
+       Map & getMap();
+       ClientMap & getClientMap();
 
        IGameDef *getGameDef()
        { return m_gamedef; }
@@ -394,23 +430,11 @@ public:
        virtual void addPlayer(Player *player);
        LocalPlayer * getLocalPlayer();
        
-       // Slightly deprecated
-       void updateMeshes(v3s16 blockpos);
-       void expireMeshes(bool only_daynight_diffed);
-
-       void setTimeOfDay(u32 time)
-       {
-               u32 old_dr = getDayNightRatio();
-
-               Environment::setTimeOfDay(time);
+       /*
+               ClientSimpleObjects
+       */
 
-               if(getDayNightRatio() != old_dr)
-               {
-                       /*infostream<<"ClientEnvironment: DayNightRatio changed"
-                                       <<" -> expiring meshes"<<std::endl;*/
-                       expireMeshes(true);
-               }
-       }
+       void addSimpleObject(ClientSimpleObject *simple);
 
        /*
                ActiveObjects
@@ -445,10 +469,19 @@ public:
        
        // Get all nearby objects
        void getActiveObjects(v3f origin, f32 max_d,
-                       core::array<DistanceSortedActiveObject> &dest);
+                       std::vector<DistanceSortedActiveObject> &dest);
        
        // Get event from queue. CEE_NONE is returned if queue is empty.
        ClientEnvEvent getClientEvent();
+
+       std::vector<core::vector2d<int> > attachment_list; // X is child ID, Y is parent ID
+
+       std::list<std::string> getPlayerNames()
+       { return m_player_names; }
+       void addPlayerName(std::string name)
+       { m_player_names.push_back(name); }
+       void removePlayerName(std::string name)
+       { m_player_names.remove(name); }
        
 private:
        ClientMap *m_map;
@@ -456,10 +489,14 @@ private:
        ITextureSource *m_texturesource;
        IGameDef *m_gamedef;
        IrrlichtDevice *m_irr;
-       core::map<u16, ClientActiveObject*> m_active_objects;
+       std::map<u16, ClientActiveObject*> m_active_objects;
+       std::list<ClientSimpleObject*> m_simple_objects;
        Queue<ClientEnvEvent> m_client_event_queue;
        IntervalLimiter m_active_object_light_update_interval;
        IntervalLimiter m_lava_hurt_interval;
+       IntervalLimiter m_drowning_interval;
+       IntervalLimiter m_breathing_interval;
+       std::list<std::string> m_player_names;
 };
 
 #endif