refactor(all): move stockton-bsp to this repo and start using traits

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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