mirror of
https://github.com/redstrate/Physis.git
synced 2025-04-25 13:57:45 +00:00
Joshua Goins
bb7c74fec8
Now it reads much more of the index file format, and tries to handle index1/index2 differences more opaquely. I'm not yet happy with the API, it needs a bit more work.
85 lines
1.8 KiB
Rust
85 lines
1.8 KiB
Rust
// SPDX-FileCopyrightText: 2024 Joshua Goins <josh@redstrate.com>
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// SPDX-License-Identifier: GPL-3.0-or-later
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use std::io::Cursor;
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use crate::ByteSpan;
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use binrw::BinRead;
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use binrw::binrw;
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#[binrw]
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#[derive(Debug, Clone, Copy)]
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#[brw(little)]
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struct PlatePosition {
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x: i16,
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y: i16,
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}
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#[binrw]
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#[derive(Debug)]
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#[brw(little)]
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struct TerrainHeader {
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version: u32,
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plate_count: u32,
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plate_size: u32,
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clip_distance: f32,
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unknown: f32,
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#[br(count = 32)]
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padding: Vec<u8>,
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#[br(count = plate_count)]
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positions: Vec<PlatePosition>,
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}
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#[derive(Debug)]
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pub struct PlateModel {
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pub position: (f32, f32),
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pub filename: String,
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}
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#[derive(Debug)]
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pub struct Terrain {
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pub plates: Vec<PlateModel>,
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}
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impl Terrain {
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/// Reads an existing TERA file
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pub fn from_existing(buffer: ByteSpan) -> Option<Terrain> {
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let mut cursor = Cursor::new(buffer);
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let header = TerrainHeader::read(&mut cursor).ok()?;
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let mut plates = vec![];
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for i in 0..header.plate_count {
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plates.push(PlateModel {
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position: (
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header.plate_size as f32 * (header.positions[i as usize].x as f32 + 0.5),
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header.plate_size as f32 * (header.positions[i as usize].y as f32 + 0.5),
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),
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filename: format!("{:04}.mdl", i),
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})
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}
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Some(Terrain { plates })
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}
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}
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#[cfg(test)]
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mod tests {
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use std::fs::read;
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use std::path::PathBuf;
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use super::*;
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#[test]
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fn test_invalid() {
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let mut d = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
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d.push("resources/tests");
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d.push("random");
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// Feeding it invalid data should not panic
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Terrain::from_existing(&read(d).unwrap());
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}
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}
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