void createSphereInVolume(TerrainPager* volData, float fRadius, PolyVox::Vector3DInt32 _center, uint8_t material)
{
PolyVox::Vector3DFloat center( _center.getX(), _center.getY(), _center.getZ() );
//This vector hold the position of the center of the volume
PolyVox::Region volRegion(volData->getEnclosingRegion());
//This three-level for loop iterates over every voxel in the volume
for (int z = max(center.getZ() - fRadius, (float)volRegion.getLowerCorner().getZ()); z < min(center.getZ() + fRadius, (float)volRegion.getUpperCorner().getZ()); z++)
{
for (int y = max(center.getY() - fRadius, (float)volRegion.getLowerCorner().getY()); y < min(center.getY() + fRadius, (float)volRegion.getUpperCorner().getY()); y++)
{
for (int x = max(center.getX() - fRadius, (float)volRegion.getLowerCorner().getX()); x < min(center.getX() + fRadius, (float)volRegion.getUpperCorner().getX()); x++)
{
//Store our current position as a vector...
PolyVox::Vector3DFloat v3dCurrentPos(x,y,z);
//And compute how far the current position is from the center of the volume
float fDistToCenter = (v3dCurrentPos - center).length();
//If the current voxel is less than 'radius' units from the center then we make it solid.
if(fDistToCenter <= fRadius)
{
PolyVox::Vector3DInt32 point(x,y,z);
if( volRegion.containsPoint(point) )
{
//Get the old voxel
PolyVox::Material<uint8_t> voxel = volData->getVoxelAt(point);
voxel.setMaterial(material);
//Wrte the voxel value into the volume
volData->setVoxelAt( point, voxel);
}
}
}
}
}
}
void BlockGrid::setBlock(PolyVox::Vector3DInt32 location, CompositeBlock::blockDataType block, bool front)
{
_blockmap->setVoxel(location, block);
Coords chunk = chunkManager->blockToChunkCoords(Coords(location.getX(), location.getY(), location.getZ()));
chunkManager->setDirty(chunk, front);
//also update surrounding chunks if the block borders them
// TODO: Better logic to check if the chunk actually needs rebuilding
//X-
if (location.getX() % Chunk::chunkWidth == 0)
{
Coords chunk = chunkManager->blockToChunkCoords(Coords(location.getX()-1, location.getY(), location.getZ()));
chunkManager->setDirty(chunk, front);
}
//X+
else if (location.getX() % Chunk::chunkWidth == Chunk::chunkWidth-1)
{
Coords chunk = chunkManager->blockToChunkCoords(Coords(location.getX() + 1, location.getY(), location.getZ()));
chunkManager->setDirty(chunk, front);
}
//Y-
if (location.getY() % Chunk::chunkWidth == 0)
{
Coords chunk = chunkManager->blockToChunkCoords(Coords(location.getX(), location.getY() - 1, location.getZ()));
chunkManager->setDirty(chunk, front);
}
//Y+
else if (location.getY() % Chunk::chunkWidth == Chunk::chunkWidth - 1)
{
Coords chunk = chunkManager->blockToChunkCoords(Coords(location.getX(), location.getY() + 1, location.getZ()));
chunkManager->setDirty(chunk,front);
}
//Z-
if (location.getZ() % Chunk::chunkHeight == 0)
{
Coords chunk = chunkManager->blockToChunkCoords(Coords(location.getX(), location.getY(), location.getZ() - 1));
chunkManager->setDirty(chunk, front);
}
//Z+
else if (location.getZ() % Chunk::chunkHeight == Chunk::chunkHeight - 1)
{
Coords chunk = chunkManager->blockToChunkCoords(Coords(location.getX(), location.getY(), location.getZ() + 1));
chunkManager->setDirty(chunk, front);
}
}