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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::str;
use super::Q3BspFile;
use crate::coords::CoordSystem;
use crate::helpers::slice_to_u32;
use crate::traits::effects::*;
use crate::types::{ParseError, Result};
/// The size of one effect definition
const EFFECT_SIZE: usize = 64 + 4 + 4;
pub fn from_data(data: &[u8], n_brushes: u32) -> Result<Box<[Effect]>> {
if data.len() % EFFECT_SIZE != 0 {
return Err(ParseError::Invalid);
}
let length = data.len() / EFFECT_SIZE;
let mut effects = Vec::with_capacity(length);
for n in 0..length {
let raw = &data[n * EFFECT_SIZE..(n + 1) * EFFECT_SIZE];
let brush_idx = slice_to_u32(&raw[64..68]);
if brush_idx >= n_brushes {
return Err(ParseError::Invalid);
}
effects.push(Effect {
name: str::from_utf8(&raw[..64])
.map_err(|_| ParseError::Invalid)?
.to_owned(),
brush_idx,
});
}
Ok(effects.into_boxed_slice())
}
impl<T: CoordSystem> HasEffects<T> for Q3BspFile<T> {
type EffectsIter<'a> = std::slice::Iter<'a, Effect>;
fn effects_iter(&self) -> Self::EffectsIter<'_> {
self.effects.iter()
}
fn get_effect(&self, index: u32) -> &Effect {
&self.effects[index as usize]
}
}
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