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// Copyright (C) 2019 Oscar Shrimpton
//
// This file is part of stockton-bsp.
//
// stockton-bsp is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// stockton-bsp is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with stockton-bsp. If not, see <http://www.gnu.org/licenses/>.
use std::convert::TryInto;
use crate::types::{Result, ParseError, RGB};
use crate::traits::light_vols::*;
use super::Q3BSPFile;
const VOL_LENGTH: usize = (3 * 2) + 2;
pub fn from_data(data: &[u8]) -> Result<Box<[LightVol]>> {
if data.len() % VOL_LENGTH != 0 {
return Err(ParseError::Invalid);
}
let length = data.len() / VOL_LENGTH;
let mut vols = Vec::with_capacity(length);
for n in 0..length {
let data = &data[n * VOL_LENGTH..(n + 1) * VOL_LENGTH];
vols.push(LightVol {
ambient: RGB::from_slice(&data[0..3]),
directional: RGB::from_slice(&data[3..6]),
dir: data[6..8].try_into().unwrap(),
});
}
Ok(vols.into_boxed_slice())
}
impl<'a> HasLightVols<'a> for Q3BSPFile {
type LightVolsIter = std::slice::Iter<'a, LightVol>;
fn lightvols_iter(&'a self) -> Self::LightVolsIter {
self.light_vols.iter()
}
fn get_lightvol(&'a self, index: u32) -> &'a LightVol {
&self.light_vols[index as usize]
}
}
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