X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=src%2Fmapblock.h;h=30e9e38f81e9cc9285995a51012ec4304e51d70e;hb=96e09703ba461923c2d8ffa3aeed8c6d0169b13f;hp=48f8775519fe8e47b713dba47e43beda4a6c9b2e;hpb=c707e00195f1035ae535f3fc8697af42e73190c0;p=dragonfireclient.git

diff --git a/src/mapblock.h b/src/mapblock.h
index 48f877551..30e9e38f8 100644
--- a/src/mapblock.h
+++ b/src/mapblock.h
@@ -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 +30,10 @@
 #include "serialization.h"
 #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{
@@ -30,10 +47,100 @@ 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;
+};
+
+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,
@@ -50,97 +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
-{
-private:
+/*
+	Mesh making stuff
+*/
 
-	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:
+class MapBlock;
 
+#ifndef SERVER
+
+struct MeshMakeData
+{
+	u32 m_daynight_ratio;
+	NodeModMap m_temp_mods;
+	VoxelManipulator m_vmanip;
+	v3s16 m_blockpos;
+	
 	/*
-		This used by Server's block creation stuff for not sending
-		blocks that are waiting a lighting update.
+		Copy central data directly from block, and other data from
+		parent of block.
+	*/
+	void fill(u32 daynight_ratio, MapBlock *block);
+};
 
-		If true, the block needs some work by the one who set this
-		to true.
+scene::SMesh* makeMapBlockMesh(MeshMakeData *data);
 
-		While true, nobody else should touch the block.
-	*/
-	//bool is_incomplete;
-	
-	scene::SMesh *mesh;
-	JMutex mesh_mutex;
+#endif
 
-	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;
-	}
+u8 getFaceLight(u32 daynight_ratio, MapNode n, MapNode n2,
+		v3s16 face_dir);
 
-	~MapBlock()
-	{
-		{
-			JMutexAutoLock lock(mesh_mutex);
-			
-			if(mesh != NULL)
-			{
-				mesh->drop();
-				mesh = NULL;
-			}
-		}
+/*
+	MapBlock itself
+*/
 
-		if(data)
-			delete[] data;
-	}
+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());
@@ -151,27 +248,15 @@ class MapBlock : public NodeContainer
 	{
 		return changed;
 	}
-
 	void resetChangedFlag()
 	{
 		changed = false;
 	}
-
 	void setChangedFlag()
 	{
 		changed = true;
 	}
 
-	v3s16 getPos()
-	{
-		return m_pos;
-	}
-		
-	v3s16 getPosRelative()
-	{
-		return m_pos * MAP_BLOCKSIZE;
-	}
-		
 	bool getIsUnderground()
 	{
 		return is_underground;
@@ -183,6 +268,61 @@ class MapBlock : public NodeContainer
 		setChangedFlag();
 	}
 
+#ifndef SERVER
+	void setMeshExpired(bool expired)
+	{
+		m_mesh_expired = expired;
+	}
+	
+	bool getMeshExpired()
+	{
+		return m_mesh_expired;
+	}
+#endif
+
+	void setLightingExpired(bool expired)
+	{
+		m_lighting_expired = expired;
+		setChangedFlag();
+	}
+	bool getLightingExpired()
+	{
+		return m_lighting_expired;
+	}
+
+	/*bool isFullyGenerated()
+	{
+		return !m_not_fully_generated;
+	}
+	void setFullyGenerated(bool b)
+	{
+		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(),
@@ -190,19 +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)
@@ -212,10 +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)
@@ -283,6 +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)
 	{
@@ -292,36 +421,84 @@ 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(v3s16 p, v3s16 face_dir);
-	
 	/*
-		Gets node material from any place relative to block.
-		Returns MATERIAL_AIR if doesn't exist.
+		Graphics-related methods
 	*/
-	u8 getNodeMaterial(v3s16 p);
+	
+	/*// 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(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(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();
+			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);
 	
-	// Doesn't write version by itself
-	void serialize(std::ostream &os, u8 version);
+#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);
 
-	void deSerialize(std::istream &is, u8 version);
+	/*
+		MapBlockObject stuff
+	*/
 	
 	void serializeObjects(std::ostream &os, u8 version)
 	{
@@ -329,9 +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();
 	}
@@ -362,12 +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)
 	{
@@ -388,7 +564,94 @@ class MapBlock : public NodeContainer
 		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, 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)
+	{
+		JMutexAutoLock lock(m_temp_mods_mutex);
+
+		return m_temp_mods.clear(p);
+	}
+	bool clearTempMods()
+	{
+		JMutexAutoLock lock(m_temp_mods_mutex);
+		
+		return m_temp_mods.clear();
+	}
+	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()
+	{
+		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);
+
 private:
+	/*
+		Private methods
+	*/
 
 	/*
 		Used only internally, because changes can't be tracked
@@ -396,6 +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();
@@ -405,6 +670,84 @@ 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 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;
+
+	/*
+		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;
+
+	/*
+		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
+	NodeModMap m_temp_mods;
+	JMutex m_temp_mods_mutex;
+#endif
 };
 
 inline bool blockpos_over_limit(v3s16 p)