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/*
* Copyright (C) Oscar Shrimpton 2020
*
* This program 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.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
use std::convert::TryInto;
use super::Q3BSPFile;
use crate::coords::CoordSystem;
use crate::traits::light_vols::*;
use crate::types::{ParseError, Result, RGB};
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<T: CoordSystem> HasLightVols for Q3BSPFile<T> {
type LightVolsIter<'a> = std::slice::Iter<'a, LightVol>;
fn lightvols_iter(&self) -> Self::LightVolsIter<'_> {
self.light_vols.iter()
}
fn get_lightvol(&self, index: u32) -> &LightVol {
&self.light_vols[index as usize]
}
}
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