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Diffstat (limited to 'stockton-levels/src/q3/light_maps.rs')
| -rw-r--r-- | stockton-levels/src/q3/light_maps.rs | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/stockton-levels/src/q3/light_maps.rs b/stockton-levels/src/q3/light_maps.rs new file mode 100644 index 0000000..6743aa4 --- /dev/null +++ b/stockton-levels/src/q3/light_maps.rs @@ -0,0 +1,59 @@ +// 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 crate::types::{Result, RGB, ParseError}; +use crate::traits::light_maps::*; +use super::Q3BSPFile; + +/// The size of one LightMap +const LIGHTMAP_SIZE: usize = 128 * 128 * 3; + +/// Parse the LightMap data from a bsp file. +pub fn from_data(data: &[u8]) -> Result<Box<[LightMap]>> { + if data.len() % LIGHTMAP_SIZE != 0 { + return Err(ParseError::Invalid); + } + let length = data.len() / LIGHTMAP_SIZE; + + let mut maps = Vec::with_capacity(length as usize); + for n in 0..length { + let raw = &data[n * LIGHTMAP_SIZE..(n + 1) * LIGHTMAP_SIZE]; + let mut map: [[RGB; 128]; 128] = [[RGB::white(); 128]; 128]; + + for x in 0..128 { + for y in 0..128 { + let offset = (x * 128 * 3) + (y * 3); + map[x][y] = RGB::from_slice(&raw[offset..offset + 3]); + } + } + maps.push(LightMap { map }) + } + + Ok(maps.into_boxed_slice()) +} + +impl<'a> HasLightMaps<'a> for Q3BSPFile { + type LightMapsIter = std::slice::Iter<'a, LightMap>; + + fn lightmaps_iter(&'a self) -> Self::LightMapsIter { + self.light_maps.iter() + } + + fn get_lightmap(&'a self, index: u32) -> &'a LightMap { + &self.light_maps[index as usize] + } +}
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