StrafesNET/snf
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fix block_location

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This commit is contained in:
Quaternions 2024-07-26 12:19:09 -07:00
parent d3e114c7b6
commit 0705e879db
1 changed files with 16 additions and 6 deletions
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22
src/map.rs
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@ -346,7 +346,12 @@ pub fn write_map<W:BinWriterExt>(mut writer:W,map:strafesnet_common::map::Comple
}).collect::<Result<Vec<_>,_>>()?;
let bvh=strafesnet_common::bvh::generate_bvh(boxen).weigh_contents(&|_|std::mem::size_of::<newtypes::model::Model>());
//build blocks
let mut block_location=vec![0];//for file header
//block location is initialized with two values
//the first value represents the location of the first byte after the file header
//the second value represents the first byte of the second data block
//the first data block is always the map header, so the difference is the map header size.
//this information is filled in later after the sizes are known.
let mut block_location=vec![0,0];//for file header
let mut spacial_blocks=Vec::new();//for map header
let mut sequential_block_data=Vec::new();
let mut cursor_to_data=std::io::Cursor::new(&mut sequential_block_data);
@ -389,28 +394,33 @@ pub fn write_map<W:BinWriterExt>(mut writer:W,map:strafesnet_common::map::Comple
attributes:map.attributes.into_iter().map(Into::into).collect(),
render_configs:map.render_configs.into_iter().map(Into::into).collect(),
};
//the map header is a block!
block_count+=1;
assert_eq!(block_count as usize+1,block_location.len());
let mut file_header=crate::file::Header{
fourcc:crate::file::FourCC::Map,
version:0,
priming:0,//TODO
priming:0,
resource:0,
block_count,
block_location,
};
//probe header lengths
//probe header length
let mut file_header_data=Vec::new();
binrw::BinWrite::write_le(&file_header,&mut std::io::Cursor::new(&mut file_header_data)).map_err(Error::InvalidData)?;
let mut map_header_data=Vec::new();
binrw::BinWrite::write_le(&map_header,&mut std::io::Cursor::new(&mut map_header_data)).map_err(Error::InvalidData)?;
//update file header according to probe data
let offset=file_header_data.len() as u64+map_header_data.len() as u64;
let mut offset=file_header_data.len() as u64;
file_header.priming=offset;
for position in &mut file_header.block_location{
file_header.block_location[0]=offset;
offset+=map_header_data.len() as u64;
for position in &mut file_header.block_location[1..]{
*position+=offset;
}
//write file header
//write (updated) file header
writer.write_le(&file_header).map_err(Error::InvalidData)?;
//write map header
writer.write(&map_header_data).map_err(Error::IO)?;