]> git.lizzy.rs Git - dragonfireclient.git/blobdiff - src/mapblock.h
disable tiling of textures only if smooth lighting is used
[dragonfireclient.git] / src / mapblock.h
index ff36e3a7d43447d70379cfaa1f02f0a8be12ebcd..30e9e38f81e9cc9285995a51012ec4304e51d70e 100644 (file)
@@ -31,8 +31,9 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "constants.h"
 #include "mapblockobject.h"
 #include "voxel.h"
+#include "nodemetadata.h"
+#include "staticobject.h"
 
-#define MAP_BLOCKSIZE 16
 
 // Named by looking towards z+
 enum{
@@ -59,14 +60,87 @@ enum NodeModType
 
 struct NodeMod
 {
-       NodeMod()
+       NodeMod(enum NodeModType a_type=NODEMOD_NONE, u16 a_param=0)
        {
-               type = NODEMOD_NONE;
+               type = a_type;
+               param = a_param;
+       }
+       bool operator==(const NodeMod &other)
+       {
+               return (type == other.type && param == other.param);
        }
        enum NodeModType type;
        u16 param;
 };
 
+class NodeModMap
+{
+public:
+       /*
+               returns true if the mod was different last time
+       */
+       bool set(v3s16 p, const NodeMod &mod)
+       {
+               // See if old is different, cancel if it is not different.
+               core::map<v3s16, NodeMod>::Node *n = m_mods.find(p);
+               if(n)
+               {
+                       NodeMod old = n->getValue();
+                       if(old == mod)
+                               return false;
+
+                       n->setValue(mod);
+               }
+               else
+               {
+                       m_mods.insert(p, mod);
+               }
+               
+               return true;
+       }
+       // Returns true if there was one
+       bool get(v3s16 p, NodeMod *mod)
+       {
+               core::map<v3s16, NodeMod>::Node *n;
+               n = m_mods.find(p);
+               if(n == NULL)
+                       return false;
+               if(mod)
+                       *mod = n->getValue();
+               return true;
+       }
+       bool clear(v3s16 p)
+       {
+               if(m_mods.find(p))
+               {
+                       m_mods.remove(p);
+                       return true;
+               }
+               return false;
+       }
+       bool clear()
+       {
+               if(m_mods.size() == 0)
+                       return false;
+               m_mods.clear();
+               return true;
+       }
+       void copy(NodeModMap &dest)
+       {
+               dest.m_mods.clear();
+
+               for(core::map<v3s16, NodeMod>::Iterator
+                               i = m_mods.getIterator();
+                               i.atEnd() == false; i++)
+               {
+                       dest.m_mods.insert(i.getNode()->getKey(), i.getNode()->getValue());
+               }
+       }
+
+private:
+       core::map<v3s16, NodeMod> m_mods;
+};
+
 enum
 {
        NODECONTAINER_ID_MAPBLOCK,
@@ -83,73 +157,87 @@ class NodeContainer
        virtual MapNode getNode(v3s16 p) = 0;
        virtual void setNode(v3s16 p, MapNode & n) = 0;
        virtual u16 nodeContainerId() const = 0;
+
+       MapNode getNodeNoEx(v3s16 p)
+       {
+               try{
+                       return getNode(p);
+               }
+               catch(InvalidPositionException &e){
+                       return MapNode(CONTENT_IGNORE);
+               }
+       }
 };
 
-class MapBlock : public NodeContainer
-{
-public:
+/*
+       Mesh making stuff
+*/
 
-       /*
-               This used by Server's block creation stuff for not sending
-               blocks that are waiting a lighting update.
+class MapBlock;
 
-               If true, the block needs some work by the one who set this
-               to true.
+#ifndef SERVER
 
-               While true, nobody else should touch the block.
-       */
-       //bool is_incomplete;
+struct MeshMakeData
+{
+       u32 m_daynight_ratio;
+       NodeModMap m_temp_mods;
+       VoxelManipulator m_vmanip;
+       v3s16 m_blockpos;
        
-       scene::SMesh *mesh;
-       JMutex mesh_mutex;
+       /*
+               Copy central data directly from block, and other data from
+               parent of block.
+       */
+       void fill(u32 daynight_ratio, MapBlock *block);
+};
 
-       MapBlock(NodeContainer *parent, v3s16 pos, bool dummy=false):
-                       m_parent(parent),
-                       m_pos(pos),
-                       changed(true),
-                       is_underground(false),
-                       m_mesh_expired(false),
-                       m_objects(this)
-                       //is_incomplete(false)
-       {
-               data = NULL;
-               if(dummy == false)
-                       reallocate();
-               mesh_mutex.Init();
-               mesh = NULL;
-       }
+scene::SMesh* makeMapBlockMesh(MeshMakeData *data);
 
-       ~MapBlock()
-       {
-               {
-                       JMutexAutoLock lock(mesh_mutex);
-                       
-                       if(mesh != NULL)
-                       {
-                               mesh->drop();
-                               mesh = NULL;
-                       }
-               }
+#endif
 
-               if(data)
-                       delete[] data;
-       }
+u8 getFaceLight(u32 daynight_ratio, MapNode n, MapNode n2,
+               v3s16 face_dir);
+
+/*
+       MapBlock itself
+*/
+
+class MapBlock : public NodeContainer
+{
+public:
+       MapBlock(NodeContainer *parent, v3s16 pos, bool dummy=false);
+       ~MapBlock();
        
        virtual u16 nodeContainerId() const
        {
                return NODECONTAINER_ID_MAPBLOCK;
        }
-
+       
        NodeContainer * getParent()
        {
                return m_parent;
        }
 
+       void reallocate()
+       {
+               if(data != NULL)
+                       delete[] data;
+               u32 l = MAP_BLOCKSIZE * MAP_BLOCKSIZE * MAP_BLOCKSIZE;
+               data = new MapNode[l];
+               for(u32 i=0; i<l; i++){
+                       data[i] = MapNode();
+               }
+               setChangedFlag();
+       }
+
+       /*
+               Flags
+       */
+
        bool isDummy()
        {
                return (data == NULL);
        }
-
        void unDummify()
        {
                assert(isDummy());
@@ -160,17 +248,27 @@ class MapBlock : public NodeContainer
        {
                return changed;
        }
-
        void resetChangedFlag()
        {
                changed = false;
        }
-
        void setChangedFlag()
        {
                changed = true;
        }
 
+       bool getIsUnderground()
+       {
+               return is_underground;
+       }
+
+       void setIsUnderground(bool a_is_underground)
+       {
+               is_underground = a_is_underground;
+               setChangedFlag();
+       }
+
+#ifndef SERVER
        void setMeshExpired(bool expired)
        {
                m_mesh_expired = expired;
@@ -180,28 +278,51 @@ class MapBlock : public NodeContainer
        {
                return m_mesh_expired;
        }
+#endif
 
-       v3s16 getPos()
+       void setLightingExpired(bool expired)
        {
-               return m_pos;
+               m_lighting_expired = expired;
+               setChangedFlag();
        }
-               
-       v3s16 getPosRelative()
+       bool getLightingExpired()
        {
-               return m_pos * MAP_BLOCKSIZE;
+               return m_lighting_expired;
        }
-               
-       bool getIsUnderground()
+
+       /*bool isFullyGenerated()
        {
-               return is_underground;
+               return !m_not_fully_generated;
        }
-
-       void setIsUnderground(bool a_is_underground)
+       void setFullyGenerated(bool b)
        {
-               is_underground = a_is_underground;
                setChangedFlag();
+               m_not_fully_generated = !b;
+       }*/
+
+       bool isValid()
+       {
+               if(m_lighting_expired)
+                       return false;
+               if(data == NULL)
+                       return false;
+               return true;
        }
 
+       /*
+               Position stuff
+       */
+
+       v3s16 getPos()
+       {
+               return m_pos;
+       }
+               
+       v3s16 getPosRelative()
+       {
+               return m_pos * MAP_BLOCKSIZE;
+       }
+               
        core::aabbox3d<s16> getBox()
        {
                return core::aabbox3d<s16>(getPosRelative(),
@@ -209,19 +330,11 @@ class MapBlock : public NodeContainer
                                + v3s16(MAP_BLOCKSIZE, MAP_BLOCKSIZE, MAP_BLOCKSIZE)
                                - v3s16(1,1,1));
        }
-       
-       void reallocate()
-       {
-               if(data != NULL)
-                       delete[] data;
-               u32 l = MAP_BLOCKSIZE * MAP_BLOCKSIZE * MAP_BLOCKSIZE;
-               data = new MapNode[l];
-               for(u32 i=0; i<l; i++){
-                       data[i] = MapNode();
-               }
-               setChangedFlag();
-       }
 
+       /*
+               Regular MapNode get-setters
+       */
+       
        bool isValidPosition(v3s16 p)
        {
                if(data == NULL)
@@ -231,10 +344,6 @@ class MapBlock : public NodeContainer
                                && p.Z >= 0 && p.Z < MAP_BLOCKSIZE);
        }
 
-       /*
-               Regular MapNode get-setters
-       */
-       
        MapNode getNode(s16 x, s16 y, s16 z)
        {
                if(data == NULL)
@@ -302,6 +411,7 @@ class MapBlock : public NodeContainer
        bool isValidPositionParent(v3s16 p);
        MapNode getNodeParent(v3s16 p);
        void setNodeParent(v3s16 p, MapNode & n);
+       MapNode getNodeParentNoEx(v3s16 p);
 
        void drawbox(s16 x0, s16 y0, s16 z0, s16 w, s16 h, s16 d, MapNode node)
        {
@@ -311,36 +421,83 @@ class MapBlock : public NodeContainer
                                        setNode(x0+x, y0+y, z0+z, node);
        }
 
-       static FastFace * makeFastFace(TileSpec tile, u8 light, v3f p,
-                       v3s16 dir, v3f scale, v3f posRelative_f);
+       /*
+               Graphics-related methods
+       */
        
-       u8 getFaceLight(u32 daylight_factor, v3s16 p, v3s16 face_dir);
+       /*// A quick version with nodes passed as parameters
+       u8 getFaceLight(u32 daynight_ratio, MapNode n, MapNode n2,
+                       v3s16 face_dir);*/
+       /*// A more convenient version
+       u8 getFaceLight(u32 daynight_ratio, v3s16 p, v3s16 face_dir)
+       {
+               return getFaceLight(daynight_ratio,
+                               getNodeParentNoEx(p),
+                               getNodeParentNoEx(p + face_dir),
+                               face_dir);
+       }*/
+       u8 getFaceLight2(u32 daynight_ratio, v3s16 p, v3s16 face_dir)
+       {
+               return getFaceLight(daynight_ratio,
+                               getNodeParentNoEx(p),
+                               getNodeParentNoEx(p + face_dir),
+                               face_dir);
+       }
+       
+#ifndef SERVER
+       // light = 0...255
+       /*static void makeFastFace(TileSpec tile, u8 light, v3f p,
+                       v3s16 dir, v3f scale, v3f posRelative_f,
+                       core::array<FastFace> &dest);*/
        
-       TileSpec getNodeTile(v3s16 p, v3s16 face_dir);
-       u8 getNodeContent(v3s16 p);
+       /*TileSpec getNodeTile(MapNode mn, v3s16 p, v3s16 face_dir,
+                       NodeModMap &temp_mods);*/
+       /*u8 getNodeContent(v3s16 p, MapNode mn,
+                       NodeModMap &temp_mods);*/
 
        /*
-               startpos:
+               Generates the FastFaces of a node row. This has a
+               ridiculous amount of parameters because that way they
+               can be precalculated by the caller.
+
                translate_dir: unit vector with only one of x, y or z
                face_dir: unit vector with only one of x, y or z
        */
-       void updateFastFaceRow(
-                       u32 daylight_factor,
+       /*void updateFastFaceRow(
+                       u32 daynight_ratio,
+                       v3f posRelative_f,
                        v3s16 startpos,
                        u16 length,
                        v3s16 translate_dir,
+                       v3f translate_dir_f,
                        v3s16 face_dir,
-                       core::list<FastFace*> &dest);
-
-       void updateMesh(u32 daylight_factor);
+                       v3f face_dir_f,
+                       core::array<FastFace> &dest,
+                       NodeModMap &temp_mods);*/
+       
+       /*
+               Thread-safely updates the whole mesh of the mapblock.
+       */
+#if 1
+       void updateMesh(u32 daynight_ratio);
+#endif
 
-       bool propagateSunlight(core::map<v3s16, bool> & light_sources);
+       void replaceMesh(scene::SMesh *mesh_new);
+       
+#endif // !SERVER
+       
+       // See comments in mapblock.cpp
+       bool propagateSunlight(core::map<v3s16, bool> & light_sources,
+                       bool remove_light=false, bool *black_air_left=NULL,
+                       bool grow_grass=false);
        
        // Copies data to VoxelManipulator to getPosRelative()
        void copyTo(VoxelManipulator &dst);
+       // Copies data from VoxelManipulator getPosRelative()
+       void copyFrom(VoxelManipulator &dst);
 
        /*
-               Object stuff
+               MapBlockObject stuff
        */
        
        void serializeObjects(std::ostream &os, u8 version)
@@ -349,9 +506,9 @@ class MapBlock : public NodeContainer
        }
        // If smgr!=NULL, new objects are added to the scene
        void updateObjects(std::istream &is, u8 version,
-                       scene::ISceneManager *smgr)
+                       scene::ISceneManager *smgr, u32 daynight_ratio)
        {
-               m_objects.update(is, version, smgr);
+               m_objects.update(is, version, smgr, daynight_ratio);
 
                setChangedFlag();
        }
@@ -382,12 +539,11 @@ class MapBlock : public NodeContainer
        {
                return m_objects.getLock();
        }
-       void stepObjects(float dtime, bool server)
-       {
-               m_objects.step(dtime, server);
 
-               setChangedFlag();
-       }
+       /*
+               Moves objects, deletes objects and spawns new objects
+       */
+       void stepObjects(float dtime, bool server, u32 daynight_ratio);
 
        /*void wrapObject(MapBlockObject *object)
        {
@@ -403,32 +559,86 @@ class MapBlock : public NodeContainer
                m_objects.getObjects(origin, max_d, dest);
        }
 
-       /*void getPseudoObjects(v3f origin, f32 max_d,
-                       core::array<DistanceSortedObject> &dest);*/
-
        s32 getObjectCount()
        {
                return m_objects.getCount();
        }
-       
+
+#ifndef SERVER
        /*
                Methods for setting temporary modifications to nodes for
                drawing
+
+               returns true if the mod was different last time
        */
-       void setTempMod(v3s16 p, NodeMod mod)
+       bool setTempMod(v3s16 p, const NodeMod &mod)
+       {
+               /*dstream<<"setTempMod called on block"
+                               <<" ("<<p.X<<","<<p.Y<<","<<p.Z<<")"
+                               <<", mod.type="<<mod.type
+                               <<", mod.param="<<mod.param
+                               <<std::endl;*/
+               JMutexAutoLock lock(m_temp_mods_mutex);
+
+               return m_temp_mods.set(p, mod);
+       }
+       // Returns true if there was one
+       bool getTempMod(v3s16 p, NodeMod *mod)
+       {
+               JMutexAutoLock lock(m_temp_mods_mutex);
+
+               return m_temp_mods.get(p, mod);
+       }
+       bool clearTempMod(v3s16 p)
        {
-               m_temp_mods[p] = mod;
+               JMutexAutoLock lock(m_temp_mods_mutex);
+
+               return m_temp_mods.clear(p);
        }
-       void clearTempMod(v3s16 p)
+       bool clearTempMods()
        {
-               if(m_temp_mods.find(p))
-                       m_temp_mods.remove(p);
+               JMutexAutoLock lock(m_temp_mods_mutex);
+               
+               return m_temp_mods.clear();
        }
-       void clearTempMods()
+       void copyTempMods(NodeModMap &dst)
+       {
+               JMutexAutoLock lock(m_temp_mods_mutex);
+               m_temp_mods.copy(dst);
+       }
+#endif
+
+       /*
+               Update day-night lighting difference flag.
+               
+               Sets m_day_night_differs to appropriate value.
+               
+               These methods don't care about neighboring blocks.
+               It means that to know if a block really doesn't need a mesh
+               update between day and night, the neighboring blocks have
+               to be taken into account. Use Map::dayNightDiffed().
+       */
+       void updateDayNightDiff();
+
+       bool dayNightDiffed()
        {
-               m_temp_mods.clear();
+               return m_day_night_differs;
        }
 
+       /*
+               Miscellaneous stuff
+       */
+       
+       /*
+               Tries to measure ground level.
+               Return value:
+                       -1 = only air
+                       -2 = only ground
+                       -3 = random fail
+                       0...MAP_BLOCKSIZE-1 = ground level
+       */
+       s16 getGroundLevel(v2s16 p2d);
+
        /*
                Serialization
        */
@@ -439,6 +649,9 @@ class MapBlock : public NodeContainer
        void deSerialize(std::istream &is, u8 version);
 
 private:
+       /*
+               Private methods
+       */
 
        /*
                Used only internally, because changes can't be tracked
@@ -446,6 +659,8 @@ class MapBlock : public NodeContainer
 
        MapNode & getNodeRef(s16 x, s16 y, s16 z)
        {
+               if(data == NULL)
+                       throw InvalidPositionException();
                if(x < 0 || x >= MAP_BLOCKSIZE) throw InvalidPositionException();
                if(y < 0 || y >= MAP_BLOCKSIZE) throw InvalidPositionException();
                if(z < 0 || z >= MAP_BLOCKSIZE) throw InvalidPositionException();
@@ -456,35 +671,83 @@ class MapBlock : public NodeContainer
                return getNodeRef(p.X, p.Y, p.Z);
        }
 
+public:
+       /*
+               Public member variables
+       */
+
+#ifndef SERVER
+       scene::SMesh *mesh;
+       JMutex mesh_mutex;
+#endif
+       
+       NodeMetadataList m_node_metadata;
+       StaticObjectList m_static_objects;
        
+private:
+       /*
+               Private member variables
+       */
+
+       // NOTE: Lots of things rely on this being the Map
        NodeContainer *m_parent;
        // Position in blocks on parent
        v3s16 m_pos;
+       
        /*
                If NULL, block is a dummy block.
                Dummy blocks are used for caching not-found-on-disk blocks.
        */
        MapNode * data;
+
        /*
-               - On the client, this is used for checking whether to
-                 recalculate the face cache. (Is it anymore?)
                - On the server, this is used for telling whether the
                  block has been changed from the one on disk.
+               - On the client, this is used for nothing.
        */
        bool changed;
+
        /*
-               Used for some initial lighting stuff.
-               At least /has been/ used. 8)
+               When propagating sunlight and the above block doesn't exist,
+               sunlight is assumed if this is false.
+
+               In practice this is set to true if the block is completely
+               undeground with nothing visible above the ground except
+               caves.
        */
        bool is_underground;
 
-       bool m_mesh_expired;
+       /*
+               Set to true if changes has been made that make the old lighting
+               values wrong but the lighting hasn't been actually updated.
+
+               If this is false, lighting is exactly right.
+               If this is true, lighting might be wrong or right.
+       */
+       bool m_lighting_expired;
        
+       // Whether day and night lighting differs
+       bool m_day_night_differs;
+       
+       // TODO: Remove this
        MapBlockObjectList m_objects;
+
+       // Object spawning stuff
+       //float m_spawn_timer;
+
+#ifndef SERVER // Only on client
+       /*
+               Set to true if the mesh has been ordered to be updated
+               sometime in the background.
+               In practice this is set when the day/night lighting switches.
+       */
+       bool m_mesh_expired;
        
        // Temporary modifications to nodes
        // These are only used when drawing
-       core::map<v3s16, NodeMod> m_temp_mods;
+       NodeModMap m_temp_mods;
+       JMutex m_temp_mods_mutex;
+#endif
 };
 
 inline bool blockpos_over_limit(v3s16 p)