]> git.lizzy.rs Git - dragonfireclient.git/blobdiff - src/mapblock.h
comments
[dragonfireclient.git] / src / mapblock.h
index 48f8775519fe8e47b713dba47e43beda4a6c9b2e..dd527766861c6ae7e128e847c366bca5b10054cd 100644 (file)
@@ -1,5 +1,20 @@
 /*
-(c) 2010 Perttu Ahola <celeron55@gmail.com>
+Minetest-c55
+Copyright (C) 2010 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
+(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.
+
+You should have received a copy of the GNU 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.
 */
 
 #ifndef MAPBLOCK_HEADER
@@ -15,8 +30,7 @@
 #include "serialization.h"
 #include "constants.h"
 #include "mapblockobject.h"
-
-#define MAP_BLOCKSIZE 16
+#include "voxel.h"
 
 // Named by looking towards z+
 enum{
@@ -30,10 +44,32 @@ enum{
 
 struct FastFace
 {
-       u8 material;
+       TileSpec tile;
        video::S3DVertex vertices[4]; // Precalculated vertices
 };
 
+enum NodeModType
+{
+       NODEMOD_NONE,
+       NODEMOD_CHANGECONTENT, //param is content id
+       NODEMOD_CRACK // param is crack progression
+};
+
+struct NodeMod
+{
+       NodeMod(enum NodeModType a_type=NODEMOD_NONE, u16 a_param=0)
+       {
+               type = a_type;
+               param = a_param;
+       }
+       bool operator==(const NodeMod &other)
+       {
+               return (type == other.type && param == other.param);
+       }
+       enum NodeModType type;
+       u16 param;
+};
+
 enum
 {
        NODECONTAINER_ID_MAPBLOCK,
@@ -54,77 +90,9 @@ class NodeContainer
 
 class MapBlock : public NodeContainer
 {
-private:
-
-       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.
-       */
-       bool changed;
-       /*
-               Used for some initial lighting stuff.
-               At least /has been/ used. 8)
-       */
-       bool is_underground;
-       
-       MapBlockObjectList m_objects;
-       
 public:
-
-       /*
-               This used by Server's block creation stuff for not sending
-               blocks that are waiting a lighting update.
-
-               If true, the block needs some work by the one who set this
-               to true.
-
-               While true, nobody else should touch the block.
-       */
-       //bool is_incomplete;
-       
-       scene::SMesh *mesh;
-       JMutex mesh_mutex;
-
-       MapBlock(NodeContainer *parent, v3s16 pos, bool dummy=false):
-                       m_parent(parent),
-                       m_pos(pos),
-                       changed(true),
-                       is_underground(false),
-                       m_objects(this)
-                       //is_incomplete(false)
-       {
-               data = NULL;
-               if(dummy == false)
-                       reallocate();
-               mesh_mutex.Init();
-               mesh = NULL;
-       }
-
-       ~MapBlock()
-       {
-               {
-                       JMutexAutoLock lock(mesh_mutex);
-                       
-                       if(mesh != NULL)
-                       {
-                               mesh->drop();
-                               mesh = NULL;
-                       }
-               }
-
-               if(data)
-                       delete[] data;
-       }
+       MapBlock(NodeContainer *parent, v3s16 pos, bool dummy=false);
+       ~MapBlock();
        
        virtual u16 nodeContainerId() const
        {
@@ -161,7 +129,17 @@ class MapBlock : public NodeContainer
        {
                changed = true;
        }
-
+#ifndef SERVER
+       void setMeshExpired(bool expired)
+       {
+               m_mesh_expired = expired;
+       }
+       
+       bool getMeshExpired()
+       {
+               return m_mesh_expired;
+       }
+#endif
        v3s16 getPos()
        {
                return m_pos;
@@ -283,6 +261,7 @@ 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)
        {
@@ -292,36 +271,59 @@ class MapBlock : public NodeContainer
                                        setNode(x0+x, y0+y, z0+z, node);
        }
 
-       static FastFace * makeFastFace(u8 material, u8 light, v3f p,
-                       v3f dir, v3f scale, v3f posRelative_f);
+       u8 getFaceLight(u32 daynight_ratio, MapNode n, MapNode n2,
+                       v3s16 face_dir);
        
-       u8 getFaceLight(v3s16 p, v3s16 face_dir);
+       u8 getFaceLight(u32 daynight_ratio, v3s16 p, v3s16 face_dir)
+       {
+               return getFaceLight(daynight_ratio,
+                               getNodeParentNoEx(p),
+                               getNodeParentNoEx(p + face_dir),
+                               face_dir);
+       }
        
-       /*
-               Gets node material from any place relative to block.
-               Returns MATERIAL_AIR if doesn't exist.
-       */
-       u8 getNodeMaterial(v3s16 p);
+#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(MapNode mn, v3s16 p, v3s16 face_dir);
+       u8 getNodeContent(v3s16 p, MapNode mn);
 
        /*
                startpos:
                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(v3s16 startpos,
+       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();
-
-       bool propagateSunlight(core::map<v3s16, bool> & light_sources);
+                       v3f face_dir_f,
+                       core::array<FastFace> &dest);
+
+       void updateMesh(u32 daynight_ratio);
+       /*void updateMesh(s32 daynight_i);
+       // Updates all DAYNIGHT_CACHE_COUNT meshes
+       void updateMeshes(s32 first_i=0);*/
+#endif // !SERVER
        
-       // Doesn't write version by itself
-       void serialize(std::ostream &os, u8 version);
+       // 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);
 
-       void deSerialize(std::istream &is, u8 version);
+       /*
+               Object stuff
+       */
        
        void serializeObjects(std::ostream &os, u8 version)
        {
@@ -329,9 +331,9 @@ 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();
        }
@@ -362,12 +364,11 @@ 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)
        {
@@ -383,11 +384,122 @@ 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
+       */
+       bool setTempMod(v3s16 p, 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);
+
+               // See if old is different, cancel if it is not different.
+               core::map<v3s16, NodeMod>::Node *n = m_temp_mods.find(p);
+               if(n)
+               {
+                       NodeMod old = n->getValue();
+                       if(old == mod)
+                               return false;
+               }
+
+               m_temp_mods[p] = mod;
+               return true;
+       }
+       // Returns true if there was one
+       bool getTempMod(v3s16 p, struct NodeMod *mod)
+       {
+               JMutexAutoLock lock(m_temp_mods_mutex);
+               core::map<v3s16, NodeMod>::Node *n;
+               n = m_temp_mods.find(p);
+               if(n == NULL)
+                       return false;
+               if(mod)
+                       *mod = n->getValue();
+               return true;
+       }
+       bool clearTempMod(v3s16 p)
+       {
+               JMutexAutoLock lock(m_temp_mods_mutex);
+               if(m_temp_mods.find(p))
+               {
+                       m_temp_mods.remove(p);
+                       return true;
+               }
+               return false;
+       }
+       bool clearTempMods()
+       {
+               JMutexAutoLock lock(m_temp_mods_mutex);
+               if(m_temp_mods.size() == 0)
+                       return false;
+               m_temp_mods.clear();
+               return true;
+       }
+#endif
+
+       /*
+               Day-night lighting difference
+               
+               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()
+       {
+               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
+       */
+       
+       // Doesn't write version by itself
+       void serialize(std::ostream &os, u8 version);
+
+       void deSerialize(std::istream &is, u8 version);
+
+       /*
+               Public member variables
+       */
+
+#ifndef SERVER
+       //scene::SMesh *mesh[DAYNIGHT_CACHE_COUNT];
+       scene::SMesh *mesh;
+       JMutex mesh_mutex;
+#endif
+
 private:
 
        /*
@@ -396,6 +508,8 @@ 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();
@@ -405,6 +519,46 @@ class MapBlock : public NodeContainer
        {
                return getNodeRef(p.X, p.Y, p.Z);
        }
+
+       
+       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.
+       */
+       bool changed;
+       /*
+               Used for some initial lighting stuff.
+               At least /has been/ used. 8)
+               It's probably useless now.
+       */
+       bool is_underground;
+       
+       // Whether day and night lighting differs
+       bool m_day_night_differs;
+       
+       MapBlockObjectList m_objects;
+
+       // Object spawning stuff
+       float m_spawn_timer;
+       
+#ifndef SERVER
+       bool m_mesh_expired;
+       
+       // Temporary modifications to nodes
+       // These are only used when drawing
+       core::map<v3s16, NodeMod> m_temp_mods;
+       JMutex m_temp_mods_mutex;
+#endif
 };
 
 inline bool blockpos_over_limit(v3s16 p)