/*
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.
*/
#include "mapblock.h"
#include "map.h"
// For g_settings and g_irrlicht
#include "main.h"
#include "light.h"
#include <sstream>
/*
MapBlock
*/
MapBlock::MapBlock(NodeContainer *parent, v3s16 pos, bool dummy):
m_parent(parent),
m_pos(pos),
changed(true),
is_underground(false),
m_day_night_differs(false),
m_objects(this)
{
data = NULL;
if(dummy == false)
reallocate();
m_spawn_timer = -10000;
#ifndef SERVER
m_mesh_expired = false;
mesh_mutex.Init();
mesh = NULL;
m_temp_mods_mutex.Init();
#endif
}
MapBlock::~MapBlock()
{
#ifndef SERVER
{
JMutexAutoLock lock(mesh_mutex);
if(mesh)
{
mesh->drop();
mesh = NULL;
}
}
#endif
if(data)
delete[] data;
}
bool MapBlock::isValidPositionParent(v3s16 p)
{
if(isValidPosition(p))
{
return true;
}
else{
return m_parent->isValidPosition(getPosRelative() + p);
}
}
MapNode MapBlock::getNodeParent(v3s16 p)
{
if(isValidPosition(p) == false)
{
return m_parent->getNode(getPosRelative() + p);
}
else
{
if(data == NULL)
throw InvalidPositionException();
return data[p.Z*MAP_BLOCKSIZE*MAP_BLOCKSIZE + p.Y*MAP_BLOCKSIZE + p.X];
}
}
void MapBlock::setNodeParent(v3s16 p, MapNode & n)
{
if(isValidPosition(p) == false)
{
m_parent->setNode(getPosRelative() + p, n);
}
else
{
if(data == NULL)
throw InvalidPositionException();
data[p.Z*MAP_BLOCKSIZE*MAP_BLOCKSIZE + p.Y*MAP_BLOCKSIZE + p.X] = n;
}
}
MapNode MapBlock::getNodeParentNoEx(v3s16 p)
{
if(isValidPosition(p) == false)
{
try{
return m_parent->getNode(getPosRelative() + p);
}
catch(InvalidPositionException &e)
{
return MapNode(CONTENT_IGNORE);
}
}
else
{
if(data == NULL)
{
return MapNode(CONTENT_IGNORE);
}
return data[p.Z*MAP_BLOCKSIZE*MAP_BLOCKSIZE + p.Y*MAP_BLOCKSIZE + p.X];
}
}
/*
Parameters must consist of air and !air.
Order doesn't matter.
If either of the nodes doesn't exist, light is 0.
parameters:
daynight_ratio: 0...1000
n: getNodeParent(p)
n2: getNodeParent(p + face_dir)
face_dir: axis oriented unit vector from p to p2
returns encoded light value.
*/
u8 MapBlock::getFaceLight(u32 daynight_ratio, MapNode n, MapNode n2,
v3s16 face_dir)
{
try{
u8 light;
u8 l1 = n.getLightBlend(daynight_ratio);
u8 l2 = n2.getLightBlend(daynight_ratio);
if(l1 > l2)
light = l1;
else
light = l2;
// Make some nice difference to different sides
// This makes light come from a corner
/*if(face_dir.X == 1 || face_dir.Z == 1 || face_dir.Y == -1)
light = diminish_light(diminish_light(light));
else if(face_dir.X == -1 || face_dir.Z == -1)
light = diminish_light(light);*/
// All neighboring faces have different shade (like in minecraft)
if(face_dir.X == 1 || face_dir.X == -1 || face_dir.Y == -1)
light = diminish_light(diminish_light(light));
else if(face_dir.Z == 1 || face_dir.Z == -1)
light = diminish_light(light);
return light;
}
catch(InvalidPositionException &e)
{
return 0;
}
}
#ifndef SERVER
void MapBlock::makeFastFace(TileSpec tile, u8 light, v3f p,
v3s16 dir, v3f scale, v3f posRelative_f,
core::array<FastFace> &dest)
{
FastFace face;
// Position is at the center of the cube.
v3f pos = p * BS;
posRelative_f *= BS;
v3f vertex_pos[4];
// If looking towards z+, this is the face that is behind
// the center point, facing towards z+.
vertex_pos[0] = v3f(-BS/2,-BS/2,BS/2);
vertex_pos[1] = v3f( BS/2,-BS/2,BS/2);
vertex_pos[2] = v3f( BS/2, BS/2,BS/2);
vertex_pos[3] = v3f(-BS/2, BS/2,BS/2);
if(dir == v3s16(0,0,1))
{
for(u16 i=0; i<4; i++)
vertex_pos[i].rotateXZBy(0);
}
else if(dir == v3s16(0,0,-1))
{
for(u16 i=0; i<4; i++)
vertex_pos[i].rotateXZBy(180);
}
else if(dir == v3s16(1,0,0))
{
for(u16 i=0; i<4; i++)
vertex_pos[i].rotateXZBy(-90);
}
else if(dir == v3s16(-1,0,0))
{
for(u16 i=0; i<4; i++)
vertex_pos[i].rotateXZBy(90);
}
else if(dir == v3s16(0,1,0))
{
for(u16 i=0; i<4; i++)
vertex_pos[i].rotateYZBy(-90);
}
else if(dir == v3s16(0,-1,0))
{
for(u16 i=0; i<4; i++)
vertex_pos[i].rotateYZBy(90);
}
for(u16 i=0; i<4; i++)
{
vertex_pos[i].X *= scale.X;
vertex_pos[i].Y *= scale.Y;
vertex_pos[i].Z *= scale.Z;
vertex_pos[i] += pos + posRelative_f;
}
f32 abs_scale = 1.;
if (scale.X < 0.999 || scale.X > 1.001) abs_scale = scale.X;
else if(scale.Y < 0.999 || scale.Y > 1.001) abs_scale = scale.Y;
else if(scale.Z < 0.999 || scale.Z > 1.001) abs_scale = scale.Z;
v3f zerovector = v3f(0,0,0);
//u8 li = decode_light(light);
u8 li = light;
//u8 li = 255; //DEBUG
u8 alpha = tile.alpha;
/*u8 alpha = 255;
if(tile.id == TILE_WATER)
alpha = WATER_ALPHA;*/
video::SColor c = video::SColor(alpha,li,li,li);
float x0 = tile.texture.pos.X;
float y0 = tile.texture.pos.Y;
float w = tile.texture.size.X;
float h = tile.texture.size.Y;
face.vertices[0] = video::S3DVertex(vertex_pos[0], v3f(0,1,0), c,
core::vector2d<f32>(x0+w*abs_scale, y0+h));
face.vertices[1] = video::S3DVertex(vertex_pos[1], v3f(0,1,0), c,
core::vector2d<f32>(x0, y0+h));
face.vertices[2] = video::S3DVertex(vertex_pos[2], v3f(0,1,0), c,
core::vector2d<f32>(x0, y0));
face.vertices[3] = video::S3DVertex(vertex_pos[3], v3f(0,1,0), c,
core::vector2d<f32>(x0+w*abs_scale, y0));
face.tile = tile;
//DEBUG
//f->tile = TILE_STONE;
dest.push_back(face);
//return f;
}
/*
Gets node tile from any place relative to block.
Returns TILE_NODE if doesn't exist or should not be drawn.
*/
TileSpec MapBlock::getNodeTile(MapNode mn, v3s16 p, v3s16 face_dir,
NodeModMap &temp_mods)
{
TileSpec spec;
spec = mn.getTile(face_dir);
/*
Check temporary modifications on this node
*/
/*core::map<v3s16, NodeMod>::Node *n;
n = m_temp_mods.find(p);
// If modified
if(n != NULL)
{
struct NodeMod mod = n->getValue();*/
NodeMod mod;
if(temp_mods.get(p, &mod))
{
if(mod.type == NODEMOD_CHANGECONTENT)
{
MapNode mn2(mod.param);
spec = mn2.getTile(face_dir);
}
if(mod.type == NODEMOD_CRACK)
{
/*
Get texture id, translate it to name, append stuff to
name, get texture id
*/
// Get original texture name
u32 orig_id = spec.texture.id;
std::string orig_name = g_texturesource->getTextureName(orig_id);
// Create new texture name
std::ostringstream os;
os<<orig_name<<"^[crack"<<mod.param;
// Get new texture
u32 new_id = g_texturesource->getTextureId(os.str());
/*dstream<<"MapBlock::getNodeTile(): Switching from "
<<orig_name<<" to "<<os.str()<<" ("
<<orig_id<<" to "<<new_id<<")"<<std::endl;*/
spec.texture = g_texturesource->getTexture(new_id);
}
}
return spec;
}
u8 MapBlock::getNodeContent(v3s16 p, MapNode mn, NodeModMap &temp_mods)
{
/*
Check temporary modifications on this node
*/
/*core::map<v3s16, NodeMod>::Node *n;
n = m_temp_mods.find(p);
// If modified
if(n != NULL)
{
struct NodeMod mod = n->getValue();*/
NodeMod mod;
if(temp_mods.get(p, &mod))
{
if(mod.type == NODEMOD_CHANGECONTENT)
{
// Overrides content
return mod.param;
}
if(mod.type == NODEMOD_CRACK)
{
/*
Content doesn't change.
face_contents works just like it should, because
there should not be faces between differently cracked
nodes.
If a semi-transparent node is cracked in front an
another one, it really doesn't matter whether there
is a cracked face drawn in between or not.
*/
}
}
return mn.d;
}
/*
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 MapBlock::updateFastFaceRow(
u32 daynight_ratio,
v3f posRelative_f,
v3s16 startpos,
u16 length,
v3s16 translate_dir,
v3f translate_dir_f,
v3s16 face_dir,
v3f face_dir_f,
core::array<FastFace> &dest,
NodeModMap &temp_mods)
{
v3s16 p = startpos;
u16 continuous_tiles_count = 0;
MapNode n0 = getNodeParentNoEx(p);
MapNode n1 = getNodeParentNoEx(p + face_dir);
u8 light = getFaceLight(daynight_ratio, n0, n1, face_dir);
TileSpec tile0 = getNodeTile(n0, p, face_dir, temp_mods);
TileSpec tile1 = getNodeTile(n1, p + face_dir, -face_dir, temp_mods);
for(u16 j=0; j<length; j++)
{
bool next_is_different = true;
v3s16 p_next;
MapNode n0_next;
MapNode n1_next;
TileSpec tile0_next;
TileSpec tile1_next;
u8 light_next = 0;
// If at last position, there is nothing to compare to and
// the face must be drawn anyway
if(j != length - 1)
{
p_next = p + translate_dir;
n0_next = getNodeParentNoEx(p_next);
n1_next = getNodeParentNoEx(p_next + face_dir);
tile0_next = getNodeTile(n0_next, p_next, face_dir, temp_mods);
tile1_next = getNodeTile(n1_next,p_next+face_dir,-face_dir, temp_mods);
light_next = getFaceLight(daynight_ratio, n0_next, n1_next, face_dir);
if(tile0_next == tile0
&& tile1_next == tile1
&& light_next == light)
{
next_is_different = false;
}
}
continuous_tiles_count++;
// This is set to true if the texture doesn't allow more tiling
bool end_of_texture = false;
/*
If there is no texture, it can be tiled infinitely.
If tiled==0, it means the texture can be tiled infinitely.
Otherwise check tiled agains continuous_tiles_count.
This check has to be made for both tiles, because this is
a bit hackish and we know which one we're using only when
the decision to make the faces is made.
*/
if(tile0.texture.atlas != NULL && tile0.texture.tiled != 0)
{
if(tile0.texture.tiled <= continuous_tiles_count)
end_of_texture = true;
}
if(tile1.texture.atlas != NULL && tile1.texture.tiled != 0)
{
if(tile1.texture.tiled <= continuous_tiles_count)
end_of_texture = true;
}
//end_of_texture = true; //DEBUG
if(next_is_different || end_of_texture)
{
/*
Create a face if there should be one
*/
//u8 mf = face_contents(tile0, tile1);
// This is hackish
u8 content0 = getNodeContent(p, n0, temp_mods);
u8 content1 = getNodeContent(p + face_dir, n1, temp_mods);
u8 mf = face_contents(content0, content1);
if(mf != 0)
{
// Floating point conversion of the position vector
v3f pf(p.X, p.Y, p.Z);
// Center point of face (kind of)
v3f sp = pf - ((f32)continuous_tiles_count / 2. - 0.5) * translate_dir_f;
v3f scale(1,1,1);
if(translate_dir.X != 0){
scale.X = continuous_tiles_count;
}
if(translate_dir.Y != 0){
scale.Y = continuous_tiles_count;
}
if(translate_dir.Z != 0){
scale.Z = continuous_tiles_count;
}
//FastFace *f;
// If node at sp (tile0) is more solid
if(mf == 1)
{
makeFastFace(tile0, decode_light(light),
sp, face_dir, scale,
posRelative_f, dest);
}
// If node at sp is less solid (mf == 2)
else
{
makeFastFace(tile1, decode_light(light),
sp+face_dir_f, -face_dir, scale,
posRelative_f, dest);
}
//dest.push_back(f);
}
continuous_tiles_count = 0;
n0 = n0_next;
n1 = n1_next;
tile0 = tile0_next;
tile1 = tile1_next;
light = light_next;
}
p = p_next;
}
}
/*
This is used because CMeshBuffer::append() is very slow
*/
struct PreMeshBuffer
{
video::SMaterial material;
core::array<u16> indices;
core::array<video::S3DVertex> vertices;
};
class MeshCollector
{
public:
void append(
video::SMaterial material,
const video::S3DVertex* const vertices,
u32 numVertices,
const u16* const indices,
u32 numIndices
)
{
PreMeshBuffer *p = NULL;
for(u32 i=0; i<m_prebuffers.size(); i++)
{
PreMeshBuffer &pp = m_prebuffers[i];
if(pp.material != material)
continue;
p = &pp;
break;
}
if(p == NULL)
{
PreMeshBuffer pp;
pp.material = material;
m_prebuffers.push_back(pp);
p = &m_prebuffers[m_prebuffers.size()-1];
}
u32 vertex_count = p->vertices.size();
for(u32 i=0; i<numIndices; i++)
{
u32 j = indices[i] + vertex_count;
if(j > 65535)
{
dstream<<"FIXME: Meshbuffer ran out of indices"<<std::endl;
// NOTE: Fix is to just add an another MeshBuffer
}
p->indices.push_back(j);
}
for(u32 i=0; i<numVertices; i++)
{
p->vertices.push_back(vertices[i]);
}
}
void fillMesh(scene::SMesh *mesh)
{
/*dstream<<"Filling mesh with "<<m_prebuffers.size()
<<" meshbuffers"<<std::endl;*/
for(u32 i=0; i<m_prebuffers.size(); i++)
{
PreMeshBuffer &p = m_prebuffers[i];
/*dstream<<"p.vertices.size()="<<p.vertices.size()
<<", p.indices.size()="<<p.indices.size()
<<std::endl;*/
// Create meshbuffer
// This is a "Standard MeshBuffer",
// it's a typedeffed CMeshBuffer<video::S3DVertex>
scene::SMeshBuffer *buf = new scene::SMeshBuffer();
// Set material
buf->Material = p.material;
//((scene::SMeshBuffer*)buf)->Material = p.material;
// Use VBO
//buf->setHardwareMappingHint(scene::EHM_STATIC);
// Add to mesh
mesh->addMeshBuffer(buf);
// Mesh grabbed it
buf->drop();
buf->append(p.vertices.pointer(), p.vertices.size(),
p.indices.pointer(), p.indices.size());
}
}
private:
core::array<PreMeshBuffer> m_prebuffers;
};
void MapBlock::updateMesh(u32 daynight_ratio)
{
#if 0
/*
DEBUG: If mesh has been generated, don't generate it again
*/
{
JMutexAutoLock meshlock(mesh_mutex);
if(mesh != NULL)
return;
}
#endif
// 4-21ms for MAP_BLOCKSIZE=16
// 24-155ms for MAP_BLOCKSIZE=32
//TimeTaker timer1("updateMesh()");
core::array<FastFace> fastfaces_new;
v3f posRelative_f(getPosRelative().X, getPosRelative().Y,
getPosRelative().Z); // floating point conversion
/*
Avoid interlocks by copying m_temp_mods
*/
NodeModMap temp_mods;
{
JMutexAutoLock lock(m_temp_mods_mutex);
m_temp_mods.copy(temp_mods);
}
/*
Some settings
*/
bool new_style_water = g_settings.getBool("new_style_water");
bool new_style_leaves = g_settings.getBool("new_style_leaves");
float node_water_level = 1.0;
if(new_style_water)
node_water_level = 0.85;
/*
We are including the faces of the trailing edges of the block.
This means that when something changes, the caller must
also update the meshes of the blocks at the leading edges.
NOTE: This is the slowest part of this method.
*/
{
// 4-23ms for MAP_BLOCKSIZE=16
//TimeTaker timer2("updateMesh() collect");
/*
Go through every y,z and get top faces in rows of x+
*/
for(s16 y=0; y<MAP_BLOCKSIZE; y++){
for(s16 z=0; z<MAP_BLOCKSIZE; z++){
updateFastFaceRow(daynight_ratio, posRelative_f,
v3s16(0,y,z), MAP_BLOCKSIZE,
v3s16(1,0,0), //dir
v3f (1,0,0),
v3s16(0,1,0), //face dir
v3f (0,1,0),
fastfaces_new,
temp_mods);
}
}
/*
Go through every x,y and get right faces in rows of z+
*/
for(s16 x=0; x<MAP_BLOCKSIZE; x++){
for(s16 y=0; y<MAP_BLOCKSIZE; y++){
updateFastFaceRow(daynight_ratio, posRelative_f,
v3s16(x,y,0), MAP_BLOCKSIZE,
v3s16(0,0,1),
v3f (0,0,1),
v3s16(1,0,0),
v3f (1,0,0),
fastfaces_new,
temp_mods);
}
}
/*
Go through every y,z and get back faces in rows of x+
*/
for(s16 z=0; z<MAP_BLOCKSIZE; z++){
for(s16 y=0; y<MAP_BLOCKSIZE; y++){
updateFastFaceRow(daynight_ratio, posRelative_f,
v3s16(0,y,z), MAP_BLOCKSIZE,
v3s16(1,0,0),
v3f (1,0,0),
v3s16(0,0,1),
v3f (0,0,1),
fastfaces_new,
temp_mods);
}
}
}
// End of slow part
/*
Convert FastFaces to SMesh
*/
MeshCollector collector;
if(fastfaces_new.size() > 0)
{
// avg 0ms (100ms spikes when loading textures the first time)
//TimeTaker timer2("updateMesh() mesh building");
video::SMaterial material;
material.setFlag(video::EMF_LIGHTING, false);
material.setFlag(video::EMF_BILINEAR_FILTER, false);
material.setFlag(video::EMF_FOG_ENABLE, true);
//material.setFlag(video::EMF_ANTI_ALIASING, video::EAAM_OFF);
//material.setFlag(video::EMF_ANTI_ALIASING, video::EAAM_SIMPLE);
for(u32 i=0; i<fastfaces_new.size(); i++)
{
FastFace &f = fastfaces_new[i];
const u16 indices[] = {0,1,2,2,3,0};
//video::ITexture *texture = g_irrlicht->getTexture(f.tile.spec);
video::ITexture *texture = f.tile.texture.atlas;
if(texture == NULL)
continue;
material.setTexture(0, texture);
f.tile.applyMaterialOptions(material);
collector.append(material, f.vertices, 4, indices, 6);
}
}
/*
Add special graphics:
- torches
- flowing water
*/
// 0ms
//TimeTaker timer2("updateMesh() adding special stuff");
// Flowing water material
video::SMaterial material_water1;
material_water1.setFlag(video::EMF_LIGHTING, false);
//material_water1.setFlag(video::EMF_BACK_FACE_CULLING, false);
material_water1.setFlag(video::EMF_BILINEAR_FILTER, false);
material_water1.setFlag(video::EMF_FOG_ENABLE, true);
material_water1.MaterialType = video::EMT_TRANSPARENT_VERTEX_ALPHA;
//TODO
//material_water1.setTexture(0, g_irrlicht->getTexture("water.png"));
AtlasPointer pa_water1 = g_texturesource->getTexture(
g_texturesource->getTextureId("water.png"));
material_water1.setTexture(0, pa_water1.atlas);
// New-style leaves material
video::SMaterial material_leaves1;
material_leaves1.setFlag(video::EMF_LIGHTING, false);
//material_leaves1.setFlag(video::EMF_BACK_FACE_CULLING, false);
material_leaves1.setFlag(video::EMF_BILINEAR_FILTER, false);
material_leaves1.setFlag(video::EMF_FOG_ENABLE, true);
material_leaves1.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
//TODO
//material_leaves1.setTexture(0, g_irrlicht->getTexture("leaves.png"));
AtlasPointer pa_leaves1 = g_texturesource->getTexture(
g_texturesource->getTextureId("leaves.png"));
material_leaves1.setTexture(0, pa_leaves1.atlas);
for(s16 z=0; z<MAP_BLOCKSIZE; z++)
for(s16 y=0; y<MAP_BLOCKSIZE; y++)
for(s16 x=0; x<MAP_BLOCKSIZE; x++)
{
v3s16 p(x,y,z);
MapNode &n = getNodeRef(x,y,z);
/*
Add torches to mesh
*/
if(n.d == CONTENT_TORCH)
{
video::SColor c(255,255,255,255);
video::S3DVertex vertices[4] =
{
video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c, 0,1),
video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c, 1,1),
video::S3DVertex(BS/2,BS/2,0, 0,0,0, c, 1,0),
video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c, 0,0),
};
v3s16 dir = unpackDir(n.dir);
for(s32 i=0; i<4; i++)
{
if(dir == v3s16(1,0,0))
vertices[i].Pos.rotateXZBy(0);
if(dir == v3s16(-1,0,0))
vertices[i].Pos.rotateXZBy(180);
if(dir == v3s16(0,0,1))
vertices[i].Pos.rotateXZBy(90);
if(dir == v3s16(0,0,-1))
vertices[i].Pos.rotateXZBy(-90);
if(dir == v3s16(0,-1,0))
vertices[i].Pos.rotateXZBy(45);
if(dir == v3s16(0,1,0))
vertices[i].Pos.rotateXZBy(-45);
vertices[i].Pos += intToFloat(p + getPosRelative(), BS);
}
// Set material
video::SMaterial material;
material.setFlag(video::EMF_LIGHTING, false);
material.setFlag(video::EMF_BACK_FACE_CULLING, false);
material.setFlag(video::EMF_BILINEAR_FILTER, false);
//material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
material.MaterialType
= video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
if(dir == v3s16(0,-1,0))
material.setTexture(0,
g_texturesource->getTextureRaw("torch_on_floor.png"));
else if(dir == v3s16(0,1,0))
material.setTexture(0,
g_texturesource->getTextureRaw("torch_on_ceiling.png"));
// For backwards compatibility
else if(dir == v3s16(0,0,0))
material.setTexture(0,
g_texturesource->getTextureRaw("torch_on_floor.png"));
else
material.setTexture(0,
g_texturesource->getTextureRaw("torch.png"));
u16 indices[] = {0,1,2,2,3,0};
// Add to mesh collector
collector.append(material, vertices, 4, indices, 6);
}
/*
Add flowing water to mesh
*/
else if(n.d == CONTENT_WATER)
{
bool top_is_water = false;
try{
MapNode n = getNodeParent(v3s16(x,y+1,z));
if(n.d == CONTENT_WATER || n.d == CONTENT_WATERSOURCE)
top_is_water = true;
}catch(InvalidPositionException &e){}
u8 l = decode_light(n.getLightBlend(daynight_ratio));
video::SColor c(WATER_ALPHA,l,l,l);
// Neighbor water levels (key = relative position)
// Includes current node
core::map<v3s16, f32> neighbor_levels;
core::map<v3s16, u8> neighbor_contents;
core::map<v3s16, u8> neighbor_flags;
const u8 neighborflag_top_is_water = 0x01;
v3s16 neighbor_dirs[9] = {
v3s16(0,0,0),
v3s16(0,0,1),
v3s16(0,0,-1),
v3s16(1,0,0),
v3s16(-1,0,0),
v3s16(1,0,1),
v3s16(-1,0,-1),
v3s16(1,0,-1),
v3s16(-1,0,1),
};
for(u32 i=0; i<9; i++)
{
u8 content = CONTENT_AIR;
float level = -0.5 * BS;
u8 flags = 0;
try{
// Check neighbor
v3s16 p2 = p + neighbor_dirs[i];
MapNode n2 = getNodeParent(p2);
content = n2.d;
if(n2.d == CONTENT_WATERSOURCE)
level = (-0.5+node_water_level) * BS;
else if(n2.d == CONTENT_WATER)
level = (-0.5 + ((float)n2.param2 + 0.5) / 8.0
* node_water_level) * BS;
// Check node above neighbor.
// NOTE: This doesn't get executed if neighbor
// doesn't exist
p2.Y += 1;
n2 = getNodeParent(p2);
if(n2.d == CONTENT_WATERSOURCE || n2.d == CONTENT_WATER)
flags |= neighborflag_top_is_water;
}
catch(InvalidPositionException &e){}
neighbor_levels.insert(neighbor_dirs[i], level);
neighbor_contents.insert(neighbor_dirs[i], content);
neighbor_flags.insert(neighbor_dirs[i], flags);
}
//float water_level = (-0.5 + ((float)n.param2 + 0.5) / 8.0) * BS;
//float water_level = neighbor_levels[v3s16(0,0,0)];
// Corner heights (average between four waters)
f32 corner_levels[4];
v3s16 halfdirs[4] = {
v3s16(0,0,0),
v3s16(1,0,0),
v3s16(1,0,1),
v3s16(0,0,1),
};
for(u32 i=0; i<4; i++)
{
v3s16 cornerdir = halfdirs[i];
float cornerlevel = 0;
u32 valid_count = 0;
for(u32 j=0; j<4; j++)
{
v3s16 neighbordir = cornerdir - halfdirs[j];
u8 content = neighbor_contents[neighbordir];
// Special case for source nodes
if(content == CONTENT_WATERSOURCE)
{
cornerlevel = (-0.5+node_water_level)*BS;
valid_count = 1;
break;
}
else if(content == CONTENT_WATER)
{
cornerlevel += neighbor_levels[neighbordir];
valid_count++;
}
else if(content == CONTENT_AIR)
{
cornerlevel += -0.5*BS;
valid_count++;
}
}
if(valid_count > 0)
cornerlevel /= valid_count;
corner_levels[i] = cornerlevel;
}
/*
Generate sides
*/
v3s16 side_dirs[4] = {
v3s16(1,0,0),
v3s16(-1,0,0),
v3s16(0,0,1),
v3s16(0,0,-1),
};
s16 side_corners[4][2] = {
{1, 2},
{3, 0},
{2, 3},
{0, 1},
};
for(u32 i=0; i<4; i++)
{
v3s16 dir = side_dirs[i];
/*
If our topside is water and neighbor's topside
is water, don't draw side face
*/
if(top_is_water &&
neighbor_flags[dir] & neighborflag_top_is_water)
continue;
u8 neighbor_content = neighbor_contents[dir];
// Don't draw face if neighbor is not air or water
if(neighbor_content != CONTENT_AIR
&& neighbor_content != CONTENT_WATER)
continue;
bool neighbor_is_water = (neighbor_content == CONTENT_WATER);
// Don't draw any faces if neighbor is water and top is water
if(neighbor_is_water == true && top_is_water == false)
continue;
video::S3DVertex vertices[4] =
{
/*video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,1),
video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,1),
video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),*/
video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
pa_water1.x0(), pa_water1.y1()),
video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
pa_water1.x1(), pa_water1.y1()),
video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
pa_water1.x1(), pa_water1.y0()),
video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
pa_water1.x0(), pa_water1.y0()),
};
/*
If our topside is water, set upper border of face
at upper border of node
*/
if(top_is_water)
{
vertices[2].Pos.Y = 0.5*BS;
vertices[3].Pos.Y = 0.5*BS;
}
/*
Otherwise upper position of face is corner levels
*/
else
{
vertices[2].Pos.Y = corner_levels[side_corners[i][0]];
vertices[3].Pos.Y = corner_levels[side_corners[i][1]];
}
/*
If neighbor is water, lower border of face is corner
water levels
*/
if(neighbor_is_water)
{
vertices[0].Pos.Y = corner_levels[side_corners[i][1]];
vertices[1].Pos.Y = corner_levels[side_corners[i][0]];
}
/*
If neighbor is not water, lower border of face is
lower border of node
*/
else
{
vertices[0].Pos.Y = -0.5*BS;
vertices[1].Pos.Y = -0.5*BS;
}
for(s32 j=0; j<4; j++)
{
if(dir == v3s16(0,0,1))
vertices[j].Pos.rotateXZBy(0);
if(dir == v3s16(0,0,-1))
vertices[j].Pos.rotateXZBy(180);
if(dir == v3s16(-1,0,0))
vertices[j].Pos.rotateXZBy(90);
if(dir == v3s16(1,0,-0))
vertices[j].Pos.rotateXZBy(-90);
vertices[j].Pos += intToFloat(p + getPosRelative(), BS);
}
u16 indices[] = {0,1,2,2,3,0};
// Add to mesh collector
collector.append(material_water1, vertices, 4, indices, 6);
}
/*
Generate top side, if appropriate
*/
if(top_is_water == false)
{
video::S3DVertex vertices[4] =
{
/*video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c, 0,1),
video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c, 1,1),
video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),*/
video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
pa_water1.x0(), pa_water1.y1()),
video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
pa_water1.x1(), pa_water1.y1()),
video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
pa_water1.x1(), pa_water1.y0()),
video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
pa_water1.x0(), pa_water1.y0()),
};
// This fixes a strange bug
s32 corner_resolve[4] = {3,2,1,0};
for(s32 i=0; i<4; i++)
{
//vertices[i].Pos.Y += water_level;
//vertices[i].Pos.Y += neighbor_levels[v3s16(0,0,0)];
s32 j = corner_resolve[i];
vertices[i].Pos.Y += corner_levels[j];
vertices[i].Pos += intToFloat(p + getPosRelative(), BS);
}
u16 indices[] = {0,1,2,2,3,0};
// Add to mesh collector
collector.append(material_water1, vertices, 4, indices, 6);
}
}
/*
Add water sources to mesh if using new style
*/
else if(n.d == CONTENT_WATERSOURCE && new_style_water)
{
//bool top_is_water = false;
bool top_is_air = false;
try{
MapNode n = getNodeParent(v3s16(x,y+1,z));
/*if(n.d == CONTENT_WATER || n.d == CONTENT_WATERSOURCE)
top_is_water = true;*/
if(n.d == CONTENT_AIR)
top_is_air = true;
}catch(InvalidPositionException &e){}
/*if(top_is_water == true)
continue;*/
if(top_is_air == false)
continue;
u8 l = decode_light(n.getLightBlend(daynight_ratio));
video::SColor c(WATER_ALPHA,l,l,l);
video::S3DVertex vertices[4] =
{
/*video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c, 0,1),
video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c, 1,1),
video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),*/
video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
pa_water1.x0(), pa_water1.y1()),
video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
pa_water1.x1(), pa_water1.y1()),
video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
pa_water1.x1(), pa_water1.y0()),
video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
pa_water1.x0(), pa_water1.y0()),
};
for(s32 i=0; i<4; i++)
{
vertices[i].Pos.Y += (-0.5+node_water_level)*BS;
vertices[i].Pos += intToFloat(p + getPosRelative(), BS);
}
u16 indices[] = {0,1,2,2,3,0};
// Add to mesh collector
collector.append(material_water1, vertices, 4, indices, 6);
}
/*
Add leaves if using new style
*/
else if(n.d == CONTENT_LEAVES && new_style_leaves)
{
/*u8 l = decode_light(n.getLightBlend(daynight_ratio));*/
u8 l = decode_light(undiminish_light(n.getLightBlend(daynight_ratio)));
video::SColor c(255,l,l,l);
for(u32 j=0; j<6; j++)
{
video::S3DVertex vertices[4] =
{
/*video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c, 0,1),
video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c, 1,1),
video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c, 1,0),
video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c, 0,0),*/
video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
pa_leaves1.x0(), pa_leaves1.y1()),
video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
pa_leaves1.x1(), pa_leaves1.y1()),
video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
pa_leaves1.x1(), pa_leaves1.y0()),
video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
pa_leaves1.x0(), pa_leaves1.y0()),
};
if(j == 0)
{
for(u16 i=0; i<4; i++)
vertices[i].Pos.rotateXZBy(0);
}
else if(j == 1)
{
for(u16 i=0; i<4; i++)
vertices[i].Pos.rotateXZBy(180);
}
else if(j == 2)
{
for(u16 i=0; i<4; i++)
vertices[i].Pos.rotateXZBy(-90);
}
else if(j == 3)
{
for(u16 i=0; i<4; i++)
vertices[i].Pos.rotateXZBy(90);
}
else if(j == 4)
{
for(u16 i=0; i<4; i++)
vertices[i].Pos.rotateYZBy(-90);
}
else if(j == 5)
{
for(u16 i=0; i<4; i++)
vertices[i].Pos.rotateYZBy(90);
}
for(u16 i=0; i<4; i++)
{
vertices[i].Pos += intToFloat(p + getPosRelative(), BS);
}
u16 indices[] = {0,1,2,2,3,0};
// Add to mesh collector
collector.append(material_leaves1, vertices, 4, indices, 6);
}
}
}
/*
Add stuff from collector to mesh
*/
scene::SMesh *mesh_new = NULL;
mesh_new = new scene::SMesh();
collector.fillMesh(mesh_new);
/*
Do some stuff to the mesh
*/
mesh_new->recalculateBoundingBox();
/*
Delete new mesh if it is empty
*/
if(mesh_new->getMeshBufferCount() == 0)
{
mesh_new->drop();
mesh_new = NULL;
}
if(mesh_new)
{
#if 0
// Usually 1-700 faces and 1-7 materials
std::cout<<"Updated MapBlock has "<<fastfaces_new.size()<<" faces "
<<"and uses "<<mesh_new->getMeshBufferCount()
<<" materials (meshbuffers)"<<std::endl;
#endif
// Use VBO for mesh (this just would set this for ever buffer)
// This will lead to infinite memory usage because or irrlicht.
//mesh_new->setHardwareMappingHint(scene::EHM_STATIC);
/*
NOTE: If that is enabled, some kind of a queue to the main
thread should be made which would call irrlicht to delete
the hardware buffer and then delete the mesh
*/
}
/*
Replace the mesh
*/
mesh_mutex.Lock();
//scene::SMesh *mesh_old = mesh[daynight_i];
//mesh[daynight_i] = mesh_new;
scene::SMesh *mesh_old = mesh;
mesh = mesh_new;
setMeshExpired(false);
if(mesh_old != NULL)
{
// Remove hardware buffers of meshbuffers of mesh
// NOTE: No way, this runs in a different thread and everything
/*u32 c = mesh_old->getMeshBufferCount();
for(u32 i=0; i<c; i++)
{
IMeshBuffer *buf = mesh_old->getMeshBuffer(i);
}*/
/*dstream<<"mesh_old->getReferenceCount()="
<<mesh_old->getReferenceCount()<<std::endl;
u32 c = mesh_old->getMeshBufferCount();
for(u32 i=0; i<c; i++)
{
scene::IMeshBuffer *buf = mesh_old->getMeshBuffer(i);
dstream<<"buf->getReferenceCount()="
<<buf->getReferenceCount()<<std::endl;
}*/
// Drop the mesh
mesh_old->drop();
//delete mesh_old;
}
mesh_mutex.Unlock();
//std::cout<<"added "<<fastfaces.getSize()<<" faces."<<std::endl;
}
/*void MapBlock::updateMeshes(s32 first_i)
{
assert(first_i >= 0 && first_i <= DAYNIGHT_CACHE_COUNT);
updateMesh(first_i);
for(s32 i=0; i<DAYNIGHT_CACHE_COUNT; i++)
{
if(i == first_i)
continue;
updateMesh(i);
}
}*/
#endif // !SERVER
/*
Propagates sunlight down through the block.
Doesn't modify nodes that are not affected by sunlight.
Returns false if sunlight at bottom block is invalid
Returns true if bottom block doesn't exist.
If there is a block above, continues from it.
If there is no block above, assumes there is sunlight, unless
is_underground is set or highest node is water.
At the moment, all sunlighted nodes are added to light_sources.
- SUGG: This could be optimized
Turns sunglighted mud into grass.
if remove_light==true, sets non-sunlighted nodes black.
if black_air_left!=NULL, it is set to true if non-sunlighted
air is left in block.
*/
bool MapBlock::propagateSunlight(core::map<v3s16, bool> & light_sources,
bool remove_light, bool *black_air_left,
bool grow_grass)
{
// Whether the sunlight at the top of the bottom block is valid
bool block_below_is_valid = true;
v3s16 pos_relative = getPosRelative();
for(s16 x=0; x<MAP_BLOCKSIZE; x++)
{
for(s16 z=0; z<MAP_BLOCKSIZE; z++)
{
#if 1
bool no_sunlight = false;
bool no_top_block = false;
// Check if node above block has sunlight
try{
MapNode n = getNodeParent(v3s16(x, MAP_BLOCKSIZE, z));
if(n.getLight(LIGHTBANK_DAY) != LIGHT_SUN)
{
no_sunlight = true;
}
}
catch(InvalidPositionException &e)
{
no_top_block = true;
// NOTE: This makes over-ground roofed places sunlighted
// Assume sunlight, unless is_underground==true
if(is_underground)
{
no_sunlight = true;
}
else
{
MapNode n = getNode(v3s16(x, MAP_BLOCKSIZE-1, z));
if(n.d == CONTENT_WATER || n.d == CONTENT_WATERSOURCE)
{
no_sunlight = true;
}
}
// NOTE: As of now, this just would make everything dark.
// No sunlight here
//no_sunlight = true;
}
#endif
#if 0 // Doesn't work; nothing gets light.
bool no_sunlight = true;
bool no_top_block = false;
// Check if node above block has sunlight
try{
MapNode n = getNodeParent(v3s16(x, MAP_BLOCKSIZE, z));
if(n.getLight(LIGHTBANK_DAY) == LIGHT_SUN)
{
no_sunlight = false;
}
}
catch(InvalidPositionException &e)
{
no_top_block = true;
}
#endif
/*std::cout<<"("<<x<<","<<z<<"): "
<<"no_top_block="<<no_top_block
<<", is_underground="<<is_underground
<<", no_sunlight="<<no_sunlight
<<std::endl;*/
s16 y = MAP_BLOCKSIZE-1;
// This makes difference to diminishing in water.
bool stopped_to_solid_object = false;
u8 current_light = no_sunlight ? 0 : LIGHT_SUN;
for(; y >= 0; y--)
{
v3s16 pos(x, y, z);
MapNode &n = getNodeRef(pos);
if(current_light == 0)
{
// Do nothing
}
else if(current_light == LIGHT_SUN && n.sunlight_propagates())
{
// Do nothing: Sunlight is continued
}
else if(n.light_propagates() == false)
{
if(grow_grass)
{
bool upper_is_air = false;
try
{
if(getNodeParent(pos+v3s16(0,1,0)).d == CONTENT_AIR)
upper_is_air = true;
}
catch(InvalidPositionException &e)
{
}
// Turn mud into grass
if(upper_is_air && n.d == CONTENT_MUD
&& current_light == LIGHT_SUN)
{
n.d = CONTENT_GRASS;
}
}
// A solid object is on the way.
stopped_to_solid_object = true;
// Light stops.
current_light = 0;
}
else
{
// Diminish light
current_light = diminish_light(current_light);
}
u8 old_light = n.getLight(LIGHTBANK_DAY);
if(current_light > old_light || remove_light)
{
n.setLight(LIGHTBANK_DAY, current_light);
}
if(diminish_light(current_light) != 0)
{
light_sources.insert(pos_relative + pos, true);
}
if(current_light == 0 && stopped_to_solid_object)
{
if(black_air_left)
{
*black_air_left = true;
}
}
}
// Whether or not the block below should see LIGHT_SUN
bool sunlight_should_go_down = (current_light == LIGHT_SUN);
/*
If the block below hasn't already been marked invalid:
Check if the node below the block has proper sunlight at top.
If not, the block below is invalid.
Ignore non-transparent nodes as they always have no light
*/
try
{
if(block_below_is_valid)
{
MapNode n = getNodeParent(v3s16(x, -1, z));
if(n.light_propagates())
{
if(n.getLight(LIGHTBANK_DAY) == LIGHT_SUN
&& sunlight_should_go_down == false)
block_below_is_valid = false;
else if(n.getLight(LIGHTBANK_DAY) != LIGHT_SUN
&& sunlight_should_go_down == true)
block_below_is_valid = false;
}
}//if
}//try
catch(InvalidPositionException &e)
{
/*std::cout<<"InvalidBlockException for bottom block node"
<<std::endl;*/
// Just no block below, no need to panic.
}
}
}
return block_below_is_valid;
}
void MapBlock::copyTo(VoxelManipulator &dst)
{
v3s16 data_size(MAP_BLOCKSIZE, MAP_BLOCKSIZE, MAP_BLOCKSIZE);
VoxelArea data_area(v3s16(0,0,0), data_size - v3s16(1,1,1));
// Copy from data to VoxelManipulator
dst.copyFrom(data, data_area, v3s16(0,0,0),
getPosRelative(), data_size);
}
void MapBlock::copyFrom(VoxelManipulator &dst)
{
v3s16 data_size(MAP_BLOCKSIZE, MAP_BLOCKSIZE, MAP_BLOCKSIZE);
VoxelArea data_area(v3s16(0,0,0), data_size - v3s16(1,1,1));
// Copy from VoxelManipulator to data
dst.copyTo(data, data_area, v3s16(0,0,0),
getPosRelative(), data_size);
}
void MapBlock::stepObjects(float dtime, bool server, u32 daynight_ratio)
{
/*
Step objects
*/
m_objects.step(dtime, server, daynight_ratio);
/*
Spawn some objects at random.
Use dayNightDiffed() to approximate being near ground level
*/
if(m_spawn_timer < -999)
{
m_spawn_timer = 60;
}
if(dayNightDiffed() == true && getObjectCount() == 0)
{
m_spawn_timer -= dtime;
if(m_spawn_timer <= 0.0)
{
m_spawn_timer += myrand() % 300;
v2s16 p2d(
(myrand()%(MAP_BLOCKSIZE-1))+0,
(myrand()%(MAP_BLOCKSIZE-1))+0
);
s16 y = getGroundLevel(p2d);
if(y >= 0)
{
v3s16 p(p2d.X, y+1, p2d.Y);
if(getNode(p).d == CONTENT_AIR
&& getNode(p).getLightBlend(daynight_ratio) <= 11)
{
RatObject *obj = new RatObject(NULL, -1, intToFloat(p, BS));
addObject(obj);
}
}
}
}
setChangedFlag();
}
void MapBlock::updateDayNightDiff()
{
if(data == NULL)
{
m_day_night_differs = false;
return;
}
bool differs = false;
/*
Check if any lighting value differs
*/
for(u32 i=0; i<MAP_BLOCKSIZE*MAP_BLOCKSIZE*MAP_BLOCKSIZE; i++)
{
MapNode &n = data[i];
if(n.getLight(LIGHTBANK_DAY) != n.getLight(LIGHTBANK_NIGHT))
{
differs = true;
break;
}
}
/*
If some lighting values differ, check if the whole thing is
just air. If it is, differ = false
*/
if(differs)
{
bool only_air = true;
for(u32 i=0; i<MAP_BLOCKSIZE*MAP_BLOCKSIZE*MAP_BLOCKSIZE; i++)
{
MapNode &n = data[i];
if(n.d != CONTENT_AIR)
{
only_air = false;
break;
}
}
if(only_air)
differs = false;
}
// Set member variable
m_day_night_differs = differs;
}
s16 MapBlock::getGroundLevel(v2s16 p2d)
{
if(isDummy())
return -3;
try
{
s16 y = MAP_BLOCKSIZE-1;
for(; y>=0; y--)
{
//if(is_ground_content(getNodeRef(p2d.X, y, p2d.Y).d))
if(content_features(getNodeRef(p2d.X, y, p2d.Y).d).walkable)
{
if(y == MAP_BLOCKSIZE-1)
return -2;
else
return y;
}
}
return -1;
}
catch(InvalidPositionException &e)
{
return -3;
}
}
/*
Serialization
*/
void MapBlock::serialize(std::ostream &os, u8 version)
{
if(!ser_ver_supported(version))
throw VersionMismatchException("ERROR: MapBlock format not supported");
if(data == NULL)
{
throw SerializationError("ERROR: Not writing dummy block.");
}
// These have no compression
if(version <= 3 || version == 5 || version == 6)
{
u32 nodecount = MAP_BLOCKSIZE*MAP_BLOCKSIZE*MAP_BLOCKSIZE;
u32 buflen = 1 + nodecount * MapNode::serializedLength(version);
SharedBuffer<u8> dest(buflen);
dest[0] = is_underground;
for(u32 i=0; i<nodecount; i++)
{
u32 s = 1 + i * MapNode::serializedLength(version);
data[i].serialize(&dest[s], version);
}
os.write((char*)*dest, dest.getSize());
}
else if(version <= 10)
{
/*
With compression.
Compress the materials and the params separately.
*/
// First byte
os.write((char*)&is_underground, 1);
u32 nodecount = MAP_BLOCKSIZE*MAP_BLOCKSIZE*MAP_BLOCKSIZE;
// Get and compress materials
SharedBuffer<u8> materialdata(nodecount);
for(u32 i=0; i<nodecount; i++)
{
materialdata[i] = data[i].d;
}
compress(materialdata, os, version);
// Get and compress lights
SharedBuffer<u8> lightdata(nodecount);
for(u32 i=0; i<nodecount; i++)
{
lightdata[i] = data[i].param;
}
compress(lightdata, os, version);
if(version >= 10)
{
// Get and compress param2
SharedBuffer<u8> param2data(nodecount);
for(u32 i=0; i<nodecount; i++)
{
param2data[i] = data[i].param2;
}
compress(param2data, os, version);
}
}
// All other versions (newest)
else
{
// First byte
u8 flags = 0;
if(is_underground)
flags |= 0x01;
if(m_day_night_differs)
flags |= 0x02;
if(m_lighting_expired)
flags |= 0x04;
os.write((char*)&flags, 1);
u32 nodecount = MAP_BLOCKSIZE*MAP_BLOCKSIZE*MAP_BLOCKSIZE;
/*
Get data
*/
SharedBuffer<u8> databuf(nodecount*3);
// Get contents
for(u32 i=0; i<nodecount; i++)
{
databuf[i] = data[i].d;
}
// Get params
for(u32 i=0; i<nodecount; i++)
{
databuf[i+nodecount] = data[i].param;
}
// Get param2
for(u32 i=0; i<nodecount; i++)
{
databuf[i+nodecount*2] = data[i].param2;
}
/*
Compress data to output stream
*/
compress(databuf, os, version);
}
}
void MapBlock::deSerialize(std::istream &is, u8 version)
{
if(!ser_ver_supported(version))
throw VersionMismatchException("ERROR: MapBlock format not supported");
// These have no compression
if(version <= 3 || version == 5 || version == 6)
{
u32 nodecount = MAP_BLOCKSIZE*MAP_BLOCKSIZE*MAP_BLOCKSIZE;
char tmp;
is.read(&tmp, 1);
if(is.gcount() != 1)
throw SerializationError
("MapBlock::deSerialize: no enough input data");
is_underground = tmp;
for(u32 i=0; i<nodecount; i++)
{
s32 len = MapNode::serializedLength(version);
SharedBuffer<u8> d(len);
is.read((char*)*d, len);
if(is.gcount() != len)
throw SerializationError
("MapBlock::deSerialize: no enough input data");
data[i].deSerialize(*d, version);
}
}
else if(version <= 10)
{
u32 nodecount = MAP_BLOCKSIZE*MAP_BLOCKSIZE*MAP_BLOCKSIZE;
u8 t8;
is.read((char*)&t8, 1);
is_underground = t8;
{
// Uncompress and set material data
std::ostringstream os(std::ios_base::binary);
decompress(is, os, version);
std::string s = os.str();
if(s.size() != nodecount)
throw SerializationError
("MapBlock::deSerialize: invalid format");
for(u32 i=0; i<s.size(); i++)
{
data[i].d = s[i];
}
}
{
// Uncompress and set param data
std::ostringstream os(std::ios_base::binary);
decompress(is, os, version);
std::string s = os.str();
if(s.size() != nodecount)
throw SerializationError
("MapBlock::deSerialize: invalid format");
for(u32 i=0; i<s.size(); i++)
{
data[i].param = s[i];
}
}
if(version >= 10)
{
// Uncompress and set param2 data
std::ostringstream os(std::ios_base::binary);
decompress(is, os, version);
std::string s = os.str();
if(s.size() != nodecount)
throw SerializationError
("MapBlock::deSerialize: invalid format");
for(u32 i=0; i<s.size(); i++)
{
data[i].param2 = s[i];
}
}
}
// All other versions (newest)
else
{
u32 nodecount = MAP_BLOCKSIZE*MAP_BLOCKSIZE*MAP_BLOCKSIZE;
u8 flags;
is.read((char*)&flags, 1);
is_underground = (flags & 0x01) ? true : false;
m_day_night_differs = (flags & 0x02) ? true : false;
m_lighting_expired = (flags & 0x04) ? true : false;
// Uncompress data
std::ostringstream os(std::ios_base::binary);
decompress(is, os, version);
std::string s = os.str();
if(s.size() != nodecount*3)
throw SerializationError
("MapBlock::deSerialize: invalid format");
// Set contents
for(u32 i=0; i<nodecount; i++)
{
data[i].d = s[i];
}
// Set params
for(u32 i=0; i<nodecount; i++)
{
data[i].param = s[i+nodecount];
}
// Set param2
for(u32 i=0; i<nodecount; i++)
{
data[i].param2 = s[i+nodecount*2];
}
}
/*
Translate nodes as specified in the translate_to fields of
node features
*/
for(u32 i=0; i<MAP_BLOCKSIZE*MAP_BLOCKSIZE*MAP_BLOCKSIZE; i++)
{
MapNode &n = data[i];
MapNode *translate_to = content_features(n.d).translate_to;
if(translate_to)
{
dstream<<"MapBlock: WARNING: Translating node "<<n.d<<" to "
<<translate_to->d<<std::endl;
n = *translate_to;
}
}
}
//END