47 lines
1.2 KiB
Rust
47 lines
1.2 KiB
Rust
mod convert;
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pub mod custom_data;
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pub mod error;
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pub(crate) mod io;
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pub mod v5;
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pub mod v6;
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use io::read_u8;
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use std::io::{Read, Write};
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use crate::error::Error;
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use crate::io::read_magic;
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pub use v6 as latest;
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#[derive(Debug)]
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pub enum BlotterFile {
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V5(v5::BlotterFile),
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V6(v6::BlotterFile),
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}
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impl BlotterFile {
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pub fn read<R: Read>(reader: &mut R) -> Result<Self, Error> {
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read_magic(reader, b"Logic World save")?;
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let save_version = read_u8(reader)?;
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match save_version {
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v5::SAVE_VERSION => v5::BlotterFile::read_after_save_version(reader).map(Self::V5),
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v6::SAVE_VERSION => v6::BlotterFile::read_after_save_version(reader).map(Self::V6),
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_ => Err(Error::IncompatibleVersion(save_version)),
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}
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}
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pub fn write<W: Write>(&self, writer: &mut W) -> Result<(), Error> {
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match self {
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Self::V5(file) => file.write(writer),
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Self::V6(file) => file.write(writer),
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}
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}
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/// Convert the file into the latest version.
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pub fn migrate(self) -> latest::BlotterFile {
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match self {
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Self::V5(file) => Self::V6(file.into()).migrate(),
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Self::V6(file) => file,
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}
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}
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}
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