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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::str;
use crate::helpers::slice_to_u32;
use crate::types::{Result, ParseError};
use crate::traits::effects::*;
use super::Q3BSPFile;
/// 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<'a> HasEffects<'a> for Q3BSPFile {
type EffectsIter = std::slice::Iter<'a, Effect>;
fn effects_iter(&'a self) -> Self::EffectsIter {
self.effects.iter()
}
fn get_effect(&'a self, index: u32) -> &'a Effect {
&self.effects[index as usize]
}
}
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