mirror of
https://github.com/minetest/minetest.git
synced 2024-11-09 17:23:45 +01:00
305 lines
6.0 KiB
C++
305 lines
6.0 KiB
C++
#include "voxel.h"
|
|
#include "map.h"
|
|
|
|
VoxelManipulator::VoxelManipulator():
|
|
m_data(NULL)
|
|
{
|
|
}
|
|
|
|
VoxelManipulator::~VoxelManipulator()
|
|
{
|
|
if(m_data)
|
|
delete[] m_data;
|
|
}
|
|
|
|
void VoxelManipulator::addArea(VoxelArea area)
|
|
{
|
|
if(area.getExtent() == v3s16(0,0,0))
|
|
return;
|
|
|
|
// Calculate new area
|
|
VoxelArea new_area;
|
|
if(m_area.getExtent() == v3s16(0,0,0))
|
|
{
|
|
new_area = area;
|
|
}
|
|
else
|
|
{
|
|
new_area = m_area;
|
|
new_area.addArea(area);
|
|
}
|
|
|
|
if(new_area == m_area)
|
|
return;
|
|
|
|
s32 new_size = new_area.getVolume();
|
|
|
|
/*dstream<<"adding area ";
|
|
area.print(dstream);
|
|
dstream<<", old area ";
|
|
m_area.print(dstream);
|
|
dstream<<", new area ";
|
|
new_area.print(dstream);
|
|
dstream<<", new_size="<<new_size;
|
|
dstream<<std::endl;*/
|
|
|
|
// Allocate and clear new data
|
|
MapNode *new_data;
|
|
new_data = new MapNode[new_size];
|
|
for(s32 i=0; i<new_size; i++)
|
|
{
|
|
new_data[i].d = MATERIAL_IGNORE;
|
|
}
|
|
|
|
// Copy old data
|
|
|
|
for(s32 z=m_area.MinEdge.Z; z<=m_area.MaxEdge.Z; z++)
|
|
for(s32 y=m_area.MinEdge.Y; y<=m_area.MaxEdge.Y; y++)
|
|
for(s32 x=m_area.MinEdge.X; x<=m_area.MaxEdge.X; x++)
|
|
{
|
|
new_data[new_area.index(z,y,x)] = m_data[m_area.index(x,y,z)];
|
|
}
|
|
|
|
// Replace member
|
|
m_area = new_area;
|
|
MapNode *old_data = m_data;
|
|
m_data = new_data;
|
|
delete[] old_data;
|
|
}
|
|
|
|
void VoxelManipulator::print(std::ostream &o)
|
|
{
|
|
v3s16 em = m_area.getExtent();
|
|
v3s16 of = m_area.MinEdge;
|
|
o<<"size: "<<em.X<<"x"<<em.Y<<"x"<<em.Z
|
|
<<" offset: ("<<of.X<<","<<of.Y<<","<<of.Z<<")"<<std::endl;
|
|
|
|
for(s32 y=m_area.MinEdge.Y; y<=m_area.MaxEdge.Y; y++)
|
|
{
|
|
if(em.X >= 3 && em.Y >= 3)
|
|
{
|
|
if(y==m_area.MinEdge.Y+0) o<<"y x-> ";
|
|
if(y==m_area.MinEdge.Y+1) o<<"| ";
|
|
if(y==m_area.MinEdge.Y+2) o<<"V ";
|
|
}
|
|
|
|
for(s32 z=m_area.MinEdge.Z; z<=m_area.MaxEdge.Z; z++)
|
|
{
|
|
for(s32 x=m_area.MinEdge.X; x<=m_area.MaxEdge.X; x++)
|
|
{
|
|
u8 m = m_data[m_area.index(x,y,z)].d;
|
|
char c = 'X';
|
|
if(m == MATERIAL_IGNORE)
|
|
c = 'I';
|
|
else if(m <= 9)
|
|
c = m + '0';
|
|
o<<c;
|
|
}
|
|
o<<' ';
|
|
}
|
|
o<<std::endl;
|
|
}
|
|
}
|
|
|
|
void VoxelManipulator::interpolate(VoxelArea area)
|
|
{
|
|
VoxelArea emerge_area = area;
|
|
emerge_area.MinEdge -= v3s16(1,1,1);
|
|
emerge_area.MaxEdge += v3s16(1,1,1);
|
|
emerge(emerge_area);
|
|
|
|
SharedBuffer<u8> buf(area.getVolume());
|
|
|
|
for(s32 z=area.MinEdge.Z; z<=area.MaxEdge.Z; z++)
|
|
for(s32 y=area.MinEdge.Y; y<=area.MaxEdge.Y; y++)
|
|
for(s32 x=area.MinEdge.X; x<=area.MaxEdge.X; x++)
|
|
{
|
|
v3s16 p(x,y,z);
|
|
|
|
v3s16 dirs[] = {
|
|
v3s16(1,1,0),
|
|
v3s16(1,0,1),
|
|
v3s16(1,-1,0),
|
|
v3s16(1,0,-1),
|
|
v3s16(-1,1,0),
|
|
v3s16(-1,0,1),
|
|
v3s16(-1,-1,0),
|
|
v3s16(-1,0,-1),
|
|
};
|
|
//const v3s16 *dirs = g_26dirs;
|
|
|
|
s16 total = 0;
|
|
s16 airness = 0;
|
|
u8 m = MATERIAL_IGNORE;
|
|
|
|
for(s16 i=0; i<8; i++)
|
|
//for(s16 i=0; i<26; i++)
|
|
{
|
|
v3s16 p2 = p + dirs[i];
|
|
|
|
MapNode &n = m_data[m_area.index(p2)];
|
|
if(n.d == MATERIAL_IGNORE)
|
|
continue;
|
|
|
|
airness += (n.d == MATERIAL_AIR) ? 1 : -1;
|
|
total++;
|
|
|
|
if(m == MATERIAL_IGNORE && n.d != MATERIAL_AIR)
|
|
m = n.d;
|
|
}
|
|
|
|
// 1 if air, 0 if not
|
|
buf[area.index(p)] = airness > -total/2 ? MATERIAL_AIR : m;
|
|
//buf[area.index(p)] = airness > -total ? MATERIAL_AIR : m;
|
|
//buf[area.index(p)] = airness >= -7 ? MATERIAL_AIR : m;
|
|
}
|
|
|
|
for(s32 z=area.MinEdge.Z; z<=area.MaxEdge.Z; z++)
|
|
for(s32 y=area.MinEdge.Y; y<=area.MaxEdge.Y; y++)
|
|
for(s32 x=area.MinEdge.X; x<=area.MaxEdge.X; x++)
|
|
{
|
|
v3s16 p(x,y,z);
|
|
m_data[m_area.index(p)].d = buf[area.index(p)];
|
|
}
|
|
}
|
|
|
|
#if 0
|
|
void VoxelManipulator::blitFromNodeContainer
|
|
(v3s16 p_from, v3s16 p_to, v3s16 size, NodeContainer *c)
|
|
{
|
|
VoxelArea a_to(p_to, p_to+size-v3s16(1,1,1));
|
|
addArea(a_to);
|
|
for(s16 z=0; z<size.Z; z++)
|
|
for(s16 y=0; y<size.Y; y++)
|
|
for(s16 x=0; x<size.X; x++)
|
|
{
|
|
v3s16 p(x,y,z);
|
|
try{
|
|
MapNode n = c->getNode(p_from + p);
|
|
m_data[m_area.index(p_to + p)] = n;
|
|
}
|
|
catch(InvalidPositionException &e)
|
|
{
|
|
}
|
|
|
|
/*v3s16 p(x,y,z);
|
|
MapNode n(MATERIAL_IGNORE);
|
|
try{
|
|
n = c->getNode(p_from + p);
|
|
}
|
|
catch(InvalidPositionException &e)
|
|
{
|
|
}
|
|
m_data[m_area.index(p_to + p)] = n;*/
|
|
}
|
|
}
|
|
|
|
void VoxelManipulator::blitToNodeContainer
|
|
(v3s16 p_from, v3s16 p_to, v3s16 size, NodeContainer *c)
|
|
{
|
|
for(s16 z=0; z<size.Z; z++)
|
|
for(s16 y=0; y<size.Y; y++)
|
|
for(s16 x=0; x<size.X; x++)
|
|
{
|
|
v3s16 p(x,y,z);
|
|
try{
|
|
MapNode &n = m_data[m_area.index(p_from + p)];
|
|
if(n.d == MATERIAL_IGNORE)
|
|
continue;
|
|
c->setNode(p_to + p, n);
|
|
}
|
|
catch(InvalidPositionException &e)
|
|
{
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
MapVoxelManipulator
|
|
*/
|
|
|
|
MapVoxelManipulator::MapVoxelManipulator(Map *map)
|
|
{
|
|
m_map = map;
|
|
}
|
|
|
|
void MapVoxelManipulator::emerge(VoxelArea a)
|
|
{
|
|
v3s16 size = a.getExtent();
|
|
|
|
addArea(a);
|
|
|
|
for(s16 z=0; z<size.Z; z++)
|
|
for(s16 y=0; y<size.Y; y++)
|
|
for(s16 x=0; x<size.X; x++)
|
|
{
|
|
v3s16 p(x,y,z);
|
|
try{
|
|
MapNode n = m_map->getNode(a.MinEdge + p);
|
|
m_data[m_area.index(a.MinEdge + p)] = n;
|
|
}
|
|
catch(InvalidPositionException &e)
|
|
{
|
|
}
|
|
}
|
|
}
|
|
|
|
void MapVoxelManipulator::blitBack
|
|
(core::map<v3s16, MapBlock*> & modified_blocks)
|
|
{
|
|
/*
|
|
Initialize block cache
|
|
*/
|
|
v3s16 blockpos_last;
|
|
MapBlock *block = NULL;
|
|
bool block_checked_in_modified = false;
|
|
|
|
for(s32 z=m_area.MinEdge.Z; z<=m_area.MaxEdge.Z; z++)
|
|
for(s32 y=m_area.MinEdge.Y; y<=m_area.MaxEdge.Y; y++)
|
|
for(s32 x=m_area.MinEdge.X; x<=m_area.MaxEdge.X; x++)
|
|
{
|
|
v3s16 p(x,y,z);
|
|
|
|
MapNode &n = m_data[m_area.index(p)];
|
|
if(n.d == MATERIAL_IGNORE)
|
|
continue;
|
|
|
|
v3s16 blockpos = getNodeBlockPos(p);
|
|
|
|
try
|
|
{
|
|
// Get block
|
|
if(block == NULL || blockpos != blockpos_last){
|
|
block = m_map->getBlockNoCreate(blockpos);
|
|
blockpos_last = blockpos;
|
|
block_checked_in_modified = false;
|
|
}
|
|
|
|
// Calculate relative position in block
|
|
v3s16 relpos = p - blockpos * MAP_BLOCKSIZE;
|
|
|
|
// Don't continue if nothing has changed here
|
|
if(block->getNode(relpos) == n)
|
|
continue;
|
|
|
|
//m_map->setNode(m_area.MinEdge + p, n);
|
|
block->setNode(relpos, n);
|
|
|
|
/*
|
|
Make sure block is in modified_blocks
|
|
*/
|
|
if(block_checked_in_modified == false)
|
|
{
|
|
modified_blocks[blockpos] = block;
|
|
block_checked_in_modified = true;
|
|
}
|
|
}
|
|
catch(InvalidPositionException &e)
|
|
{
|
|
}
|
|
}
|
|
}
|
|
|
|
//END
|